SF


Line plots across dimensions of each concept
Tables

Table of contents



us-gaap:CommonStockValue
us-gaap:StatementClassOfStock
us-gaap:PreferredStockParOrStatedValuePerShare

us-gaap:CommonStockSharesIssued

us-gaap:PreferredStockSharesIssued

us-gaap:CommonStockSharesAuthorized

us-gaap:PreferredStockSharesAuthorized

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted
dei:LegalEntity
us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents
dei:LegalEntity
us-gaap:CapitalToRiskWeightedAssets
us-gaap:ConsolidatedEntities

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments
us-gaap:StatementGeographical
us-gaap:StatementGeographical, us-gaap:StatementBusinessSegments

us-gaap:Revenues

us-gaap:RevenuesNetOfInterestExpense
us-gaap:StatementBusinessSegments
us-gaap:StatementGeographical

us-gaap:InterestIncomeOperating

us-gaap:GainLossOnInvestments

us-gaap:InterestExpense

us-gaap:InterestExpenseDebt

us-gaap:InterestPaidNet

us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:AwardType

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
us-gaap:StatementBusinessSegments

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxesPaidNet

us-gaap:ProfitLoss

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:PreferredStockDividendsIncomeStatementImpact

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:Assets
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:StatementBusinessSegments

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
dei:LegalEntity
us-gaap:TierOneRiskBasedCapital
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:AmortizationOfIntangibleAssets
us-gaap:StatementBusinessSegments

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:Goodwill
us-gaap:StatementBusinessSegments

us-gaap:IntangibleAssetsNetExcludingGoodwill
us-gaap:StatementBusinessSegments

us-gaap:DeferredTaxAssetsLiabilitiesNet

us-gaap:LongTermDebt
us-gaap:LongtermDebtType

us-gaap:StockholdersEquity

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapital

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:TreasuryStockValue
us-gaap:StatementClassOfStock
us-gaap:StockIssuedDuringPeriodValueNewIssues
us-gaap:StatementClassOfStock, us-gaap:SubsidiarySaleOfStock
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:ProfitLoss

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:PaymentsForRepurchaseOfCommonStock
us-gaap:LongtermDebtType
us-gaap:DebtInstrumentInterestRateStatedPercentage

sf:AmortizationOfLoansAndAdvancesToFinancialAdvisorsAndOtherEmployees

sf:ChangeInSecuritiesPurchasedUnderAgreementsToResell

sf:IncreaseDecreaseInDraftsPayable

sf:InterestIncomeExpenseOther

sf:InterestIncomeFromFinancialInstrumentsOwned

sf:LoansAndLeasesReceivableAllowanceImpactOfCurrentExpectedCreditLossAdoption
us-gaap:FinancialInstrument

sf:MarginBalances

sf:NetRevenuesAccountedForByIndividualClientMaximumPercentage

sf:OtherInterestAndDividendIncomeExpenseNet

sf:OtherRevenueFromContractsWithCustomer
us-gaap:StatementBusinessSegments

sf:OtherRevenues

sf:PaymentOfContingentConsideration

sf:PaymentsOfDividendsCommonStockAndEquityAwardHolders
us-gaap:LongtermDebtType
sf:RedemptionPricePercentageOfPrincipalAmount
us-gaap:StatementScenario, us-gaap:LongtermDebtType

sf:RevenueFromContractWithCustomerExcludingOtherSegmentRevenueAndAssessedTax
us-gaap:Range, us-gaap:AwardType
sf:SharebasedCompensationArrangementByShareBasedPaymentAwardAwardSharesPotentiallyConvertedRangePercentage

sf:UncommittedSecuredLinesOfCredit
us-gaap:ShortTermDebtType

sf:UnitsNetOfForfeitures
us-gaap:ShortTermDebtType
sf:WeightedAverageInterestRateOnBorrowings

us-gaap:AccretionAmortizationOfDiscountsAndPremiumsInvestments

us-gaap:AllowanceForLoanAndLeaseLossRecoveryOfBadDebts
us-gaap:FinancialInstrument

us-gaap:AllowanceForLoanAndLeaseLossesWriteOffs
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesGrossRealizedGainLossNet

us-gaap:BrokerageCommissionsRevenue
us-gaap:StatementBusinessSegments

us-gaap:CommonStockDividendsPerShareCashPaid

us-gaap:CommonStockDividendsPerShareDeclared

us-gaap:CommunicationsAndInformationTechnology
us-gaap:AdjustmentsForNewAccountingPronouncements
us-gaap:CumulativeEffectOnRetainedEarningsNetOfTax1
us-gaap:StatementEquityComponents

us-gaap:DefinedContributionPlanEmployerDiscretionaryContributionAmount

us-gaap:DepreciationAmortizationAndAccretionNet
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet
us-gaap:StatementEquityComponents
us-gaap:DividendsCommonStockCash
us-gaap:StatementEquityComponents
us-gaap:DividendsPreferredStockCash

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
us-gaap:FairValueByAssetClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1
us-gaap:FairValueByAssetClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPeriodIncreaseDecrease
us-gaap:FairValueByAssetClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases
us-gaap:FairValueByAssetClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales
us-gaap:FairValueByAssetClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3

us-gaap:FloorBrokerageExchangeAndClearanceFees

us-gaap:GainLossOnSaleOfMortgageLoans

us-gaap:GoodwillTranslationAndPurchaseAccountingAdjustments
us-gaap:StatementBusinessSegments

us-gaap:GoodwillWrittenOffRelatedToSaleOfBusinessUnit
us-gaap:StatementBusinessSegments

us-gaap:ImpairedFinancingReceivableAverageRecordedInvestment
us-gaap:FinancialInstrument

us-gaap:IncreaseDecreaseInBrokerageReceivables

us-gaap:IncreaseDecreaseInContractWithCustomerAsset

us-gaap:IncreaseDecreaseInContractWithCustomerLiability

us-gaap:IncreaseDecreaseInDeposits

us-gaap:IncreaseDecreaseInFinancialInstrumentsSoldNotYetPurchased

us-gaap:IncreaseDecreaseInOtherAccruedLiabilities

us-gaap:IncreaseDecreaseInOtherLoans

us-gaap:IncreaseDecreaseInOtherOperatingAssets

us-gaap:IncreaseDecreaseInPayablesToBrokerDealers

us-gaap:IncreaseDecreaseInSecuritiesLendingPayable

us-gaap:IncreaseDecreaseInTradingSecurities

us-gaap:IndefiniteLivedIntangibleAssetsTranslationAndPurchaseAccountingAdjustments
us-gaap:StatementBusinessSegments

us-gaap:InterestAndDividendIncomeOperating

us-gaap:InterestAndDividendIncomeSecuritiesAvailableForSale

us-gaap:InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio

us-gaap:InterestExpenseDomesticDeposits

us-gaap:InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesShortTerm

us-gaap:InterestExpenseOther

us-gaap:InvestmentBankingRevenue
us-gaap:ProductOrService
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments

us-gaap:LaborAndRelatedExpense

us-gaap:LeaseCost
us-gaap:StatementEquityComponents
us-gaap:NoncontrollingInterestDecreaseFromDeconsolidation

us-gaap:NoninterestExpense

us-gaap:NoninterestIncomeOtherOperatingIncome

us-gaap:OccupancyNet

us-gaap:OperatingLeaseCost

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax

us-gaap:OtherComprehensiveIncomeLossTax
us-gaap:DerivativeInstrumentRisk
us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

us-gaap:OtherCostAndExpenseOperating

us-gaap:OtherNoncashIncomeExpense

us-gaap:PaymentsForOriginationOfMortgageLoansHeldForSale

us-gaap:PaymentsForProceedsFromOtherLoansAndLeases

us-gaap:PaymentsOfDividendsPreferredStockAndPreferenceStock

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsToAcquireAvailableForSaleSecuritiesEquity

us-gaap:PaymentsToAcquireProductiveAssets
us-gaap:StatementClassOfStock
us-gaap:PreferredStockDividendRatePercentage

us-gaap:PrincipalTransactionsRevenue

us-gaap:ProceedsFromIssuanceOfDebt

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities

us-gaap:ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase

us-gaap:ProceedsFromSaleOfAvailableForSaleSecurities

us-gaap:ProceedsFromSaleOfMortgageLoansHeldForSale

us-gaap:ProvisionForLoanAndLeaseLosses
us-gaap:FinancialInstrument
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:ProvisionForLoanLeaseAndOtherLosses

us-gaap:ProvisionForOtherCreditLosses
us-gaap:AwardType, us-gaap:Vesting
us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage

us-gaap:ShortTermLeaseCost
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodValueOther

us-gaap:SubleaseIncome

us-gaap:TreasuryStockAcquiredAverageCostPerShare

us-gaap:TreasuryStockSharesAcquired

us-gaap:TreasuryStockValueAcquiredCostMethod
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:UnrealizedGainLossOnCashFlowHedgingInstruments

us-gaap:VariableLeaseCost
us-gaap:StatementClassOfStock
dei:EntityCommonStockSharesOutstanding

sf:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsFairValue

sf:AvailableForSaleSecuritiesDebtMaturitiesAfterOneYearThroughThreeYearsAmortizedCost

sf:AvailableForSaleSecuritiesDebtMaturitiesAfterThreeThroughFiveYearsFairValue

sf:AvailableForSaleSecuritiesDebtMaturitiesAfterThreeYearThroughFiveYearsAmortizedCost

sf:BrokerageClients

sf:CashAndCashEquivalentsAndCashSegregatedForRegulatoryPurposes

sf:CashEquivalentsMeasuredAtNetAssetValue

sf:CashSegregatedForRegulatoryPurposes

sf:CollateralizedLoanPortfolio

sf:FinancingReceivableRecordedInvestmentNonaccrualStatusRestructuredLoansAndNonperformingLoansWithNoAllowance
us-gaap:FinancialInstrument

sf:FinancingReceivableTroubledDebtRestructuringAmount
dei:LegalEntity
sf:InterestBearingAndTimeDepositOfOfficials

sf:InvestmentsAtFairValue

sf:LoansAndLeasesPayableReceivableLoansInProcess

sf:LoansReceivableHeldForInvestmentNetNotPartOfDisposalGroupMortgage

sf:OffsettingAssets

sf:OffsettingAssetsAmountsNotOffset

sf:OffsettingAssetsCollateralReceived

sf:OffsettingAssetsGrossAmountsOfRecognizedAssets

sf:OffsettingAssetsNetAmount

sf:OffsettingLiabilitiesAmountsNotOffset

sf:OffsettingLiabilitiesCollateralPledged

sf:OffsettingLiabilitiesGrossAmountsOfRecognizedLiabilities

sf:OffsettingLiabilitiesNetAmount

sf:OffsettingLiabilitiesNetAmountsPresentedInStatementOfFinancialCondition

sf:OutstandingCommitmentsToOriginateLoans
dei:LegalEntity
sf:PercentageOfAggregateDebitBalances
us-gaap:FinancialInstrument
sf:PercentageOfLoansAndLeasesReceivableGrossCarryingAmount
us-gaap:StatementClassOfStock
sf:PreferredStockLiquidationPreferencePerDepositaryShare

sf:SecuritiesBorrowedAmountNotOffsetAgainstCollateral

sf:SecuritiesBorrowedNetAmount

sf:SecuritiesLoanedAmountNotOffsetAgainstCollateral

sf:SecuritiesLoanedNetAmount

sf:SecuritiesPurchasedUnderAgreementsToResellAmountsNotOffset

sf:SecuritiesPurchasedUnderAgreementsToResellNetAmount

sf:SecuritiesSoldUnderAgreementsToRepurchaseAmountNotOffset

sf:ShortTermBorrowingsExcludingSecuritiesSoldUnderAgreementsToRepurchase

sf:TimeDepositMaturitiesLessThanOneHundredThousandNextRollingTwelveMonths

sf:TimeDepositMaturitiesLessThanOneHundredThousandOverThreeRollingYears

sf:TimeDepositMaturitiesLessThanOneHundredThousandRollingYearsOneToThree

sf:TimeDepositMaturitiesOneHundredThousandOrMoreNextRollingTwelveMonths

sf:TimeDepositMaturitiesOneHundredThousandOrMoreOverThreeRollingYears

sf:TimeDepositMaturitiesOneHundredThousandOrMoreRollingOneToThreeYears
us-gaap:FinancialInstrument
sf:UnusedLinesOfCreditToCommercialAndConsumerBorrowers

srt:DraftsPayable

srt:PayablesToBrokerDealersAndClearingOrganizations

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent

us-gaap:AccountsReceivableNet

us-gaap:AccruedSalariesCurrentAndNoncurrent

us-gaap:AdvancesFromFederalHomeLoanBanks

us-gaap:AlternativeInvestment
us-gaap:InvestmentType
us-gaap:FairValueByLiabilityClass
us-gaap:AssetBackedSecuritiesAtCarryingValue
us-gaap:FinancialInstrument

us-gaap:AssetsFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis

us-gaap:AvailableForSaleSecurities
us-gaap:FairValueByAssetClass
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument
us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByMeasurementBasis
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesAmortizedCost
us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue
us-gaap:FairValueByAssetClass
us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue
us-gaap:FairValueByAssetClass
us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue
us-gaap:FairValueByAssetClass
us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue
us-gaap:FairValueByAssetClass
us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
us-gaap:FairValueByAssetClass
us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue
us-gaap:FairValueByAssetClass
us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue
us-gaap:FairValueByAssetClass
us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesDebtSecurities
us-gaap:FairValueByAssetClass
us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument
dei:LegalEntity
us-gaap:Capital
us-gaap:ConsolidatedEntities
dei:LegalEntity
us-gaap:CapitalRequiredForCapitalAdequacy
us-gaap:ConsolidatedEntities
dei:LegalEntity
us-gaap:CapitalRequiredForCapitalAdequacyToRiskWeightedAssets
us-gaap:ConsolidatedEntities
dei:LegalEntity
us-gaap:CapitalRequiredToBeWellCapitalized
us-gaap:ConsolidatedEntities
dei:LegalEntity
us-gaap:CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets
us-gaap:ConsolidatedEntities

us-gaap:CashAndCashEquivalentsFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementFrequency

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations

us-gaap:CashSegregatedUnderOtherRegulations
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementFrequency

us-gaap:CommissionsPayableToBrokerDealersAndClearingOrganizations

us-gaap:CustomerSecuritiesForWhichEntityHasRightToSellOrRepledgeFairValue

us-gaap:CustomerSecuritiesForWhichEntityHasRightToSellOrRepledgeFairValueOfSecuritiesSoldOrRepledged

us-gaap:DebtInstrumentCarryingAmount
us-gaap:LongtermDebtType

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
us-gaap:FairValueByAssetClass
us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument
us-gaap:FinancialInstrument

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
us-gaap:FairValueByAssetClass
us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument
us-gaap:FinancialInstrument

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss
us-gaap:FairValueByAssetClass
us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument
us-gaap:FinancialInstrument
us-gaap:Collateral
us-gaap:DebtSecuritiesTradingRestricted
us-gaap:ShortTermDebtType

us-gaap:DeferredFinanceCostsNet

us-gaap:DeferredIncomeTaxAssetsNet

us-gaap:DeferredRevenue

us-gaap:Deposits

us-gaap:DepositsFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementFrequency

us-gaap:DepositsMoneyMarketDeposits

us-gaap:DepositsPaidForSecuritiesBorrowedAtCarryingValue

us-gaap:DepositsReceivedForSecuritiesLoanedAtCarryingValue

us-gaap:DerivativeLiabilities
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByMeasurementBasis

us-gaap:DueFromRelatedParties
dei:LegalEntity, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:DueFromRelatedPartiesNoncurrent

us-gaap:FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommittments
us-gaap:InvestmentType
us-gaap:FairValueByAssetClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue

us-gaap:FederalHomeLoanBankAdvances
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementFrequency
us-gaap:FinancialInstrument, us-gaap:UnderlyingAssetClass
us-gaap:FinancialInstrumentsOwnedOtherSovereignGovernmentObligationsAtFairValue

us-gaap:FinancialInstrumentsSoldNotYetPurchasedAtFairValue
us-gaap:FairValueByAssetClass
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument
us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:SecurityOwnedAndSoldNotYetPurchasedAtFairValue
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:UnderlyingAssetClass
us-gaap:FairValueByMeasurementBasis
us-gaap:SecurityOwnedAndSoldNotYetPurchasedAtFairValue
us-gaap:UnderlyingAssetClass
us-gaap:FairValueByAssetClass, us-gaap:FairValueByLiabilityClass
us-gaap:FinancialInstrumentsSoldNotYetPurchasedCorporateDebt
us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument
us-gaap:FairValueByLiabilityClass, us-gaap:UnderlyingAssetClass
us-gaap:FinancialInstrumentsSoldNotYetPurchasedOtherSovereignGovernmentDebt
us-gaap:FairValueByAssetClass, us-gaap:FairValueByLiabilityClass
us-gaap:FinancialInstrumentsSoldNotYetPurchasedStateAndMunicipalGovernmentObligations
us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument

us-gaap:FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
us-gaap:FinancialInstrument

us-gaap:FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
us-gaap:FinancialInstrument

us-gaap:FinancingReceivableCollectivelyEvaluatedForImpairment
us-gaap:FinancialInstrument

us-gaap:FinancingReceivableIndividuallyEvaluatedForImpairment
us-gaap:FinancialInstrument

us-gaap:FinancingReceivableModificationsRecordedInvestment
us-gaap:FinancialInstrument

us-gaap:FinancingReceivableRecordedInvestmentCurrent
us-gaap:FinancialInstrument

us-gaap:FinancingReceivableRecordedInvestmentNonaccrualStatus
us-gaap:FinancialInstrument

us-gaap:FinancingReceivableRecordedInvestmentPastDue
us-gaap:FinancialInstrument
us-gaap:FinancialInstrument, us-gaap:FinancingReceivablesPeriodPastDue
us-gaap:FinancingReceivablesPeriodPastDue

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:HeldToMaturitySecurities
us-gaap:CreditRatingMoodys, us-gaap:FinancialInstrument
us-gaap:FairValueByAssetClass
us-gaap:FinancialInstrument
us-gaap:FinancialInstrument
us-gaap:HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain
us-gaap:FinancialInstrument
us-gaap:HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss

us-gaap:HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue

us-gaap:HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount
us-gaap:FairValueByAssetClass

us-gaap:HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue

us-gaap:HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount
us-gaap:FairValueByAssetClass

us-gaap:HeldToMaturitySecuritiesFairValue
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementFrequency
us-gaap:FinancialInstrument

us-gaap:ImpairedFinancingReceivableRecordedInvestment
us-gaap:FinancialInstrument

us-gaap:ImpairedFinancingReceivableRelatedAllowance
us-gaap:FinancialInstrument

us-gaap:ImpairedFinancingReceivableUnpaidPrincipalBalance
us-gaap:FinancialInstrument

us-gaap:ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
us-gaap:FinancialInstrument

us-gaap:ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
us-gaap:FinancialInstrument

us-gaap:InterestBearingDepositLiabilitiesDomestic

us-gaap:InterestReceivable
us-gaap:BalanceSheetLocation
us-gaap:FairValueByMeasurementBasis
us-gaap:Investments

us-gaap:InvestmentsFairValueDisclosure
us-gaap:FairValueByAssetClass
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust

us-gaap:LettersOfCreditOutstandingAmount

us-gaap:LiabilitiesFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:CreditFacility
us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
us-gaap:Ownership, us-gaap:CreditFacility

us-gaap:LoansAndLeasesReceivableAllowance
us-gaap:FinancialInstrument

us-gaap:LoansAndLeasesReceivableDeferredIncome

us-gaap:LoansAndLeasesReceivableGrossCarryingAmount

us-gaap:LoansAndLeasesReceivableImpairedNonperformingNonaccrualOfInterest

us-gaap:LoansHeldForSaleFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementFrequency

us-gaap:LoansReceivableFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementFrequency

us-gaap:LoansReceivableHeldForSaleNetNotPartOfDisposalGroup
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:NoninterestBearingDepositLiabilitiesDomestic

us-gaap:NotesPayableFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency

us-gaap:OperatingLeaseLiability

us-gaap:OtherAssets
us-gaap:StatementClassOfStock
us-gaap:PreferredStockLiquidationPreference

us-gaap:PreferredStockValue

us-gaap:ReceivablesFromBrokersDealersAndClearingOrganizations

us-gaap:ReceivablesFromClearingOrganizations

us-gaap:ReceivablesFromCustomers
us-gaap:RelatedPartyTransaction
us-gaap:RelatedPartyDepositLiabilities

us-gaap:RetainedEarningsUnappropriated

us-gaap:SecuritiesBorrowed

us-gaap:SecuritiesBorrowedFairValueOfCollateral

us-gaap:SecuritiesBorrowedGross

us-gaap:SecuritiesFailedToDeliver

us-gaap:SecuritiesFailedToReceive

us-gaap:SecuritiesLoaned

us-gaap:SecuritiesLoanedFairValueOfCollateral

us-gaap:SecuritiesLoanedGross

us-gaap:SecuritiesPurchasedUnderAgreementsToResell
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementFrequency

us-gaap:SecuritiesPurchasedUnderAgreementsToResellFairValueOfCollateral
us-gaap:FinancialInstrument

us-gaap:SecuritiesPurchasedUnderAgreementsToResellGross

us-gaap:SecuritiesSoldUnderAgreementsToRepurchase
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementFrequency

us-gaap:SecuritiesSoldUnderAgreementsToRepurchaseFairValueOfCollateral
us-gaap:Collateral, us-gaap:FinancialInstrument

us-gaap:SecuritiesSoldUnderAgreementsToRepurchaseGross

us-gaap:SecurityOwnedAndPledgedAsCollateralFairValue
us-gaap:FinancialInstrument

us-gaap:SeniorNotes
us-gaap:FairValueByMeasurementBasis

us-gaap:ShortTermBorrowings
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis
dei:LegalEntity
us-gaap:TierOneLeverageCapital
us-gaap:ConsolidatedEntities
dei:LegalEntity
us-gaap:TierOneLeverageCapitalRequiredForCapitalAdequacy
us-gaap:ConsolidatedEntities
dei:LegalEntity
us-gaap:TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets
us-gaap:ConsolidatedEntities
dei:LegalEntity
us-gaap:TierOneLeverageCapitalRequiredToBeWellCapitalized
us-gaap:ConsolidatedEntities
dei:LegalEntity
us-gaap:TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets
us-gaap:ConsolidatedEntities
dei:LegalEntity
us-gaap:TierOneLeverageCapitalToAverageAssets
us-gaap:ConsolidatedEntities
dei:LegalEntity
us-gaap:TierOneRiskBasedCapitalRequiredForCapitalAdequacy
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents
dei:LegalEntity
us-gaap:TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents
dei:LegalEntity
us-gaap:TierOneRiskBasedCapitalRequiredToBeWellCapitalized
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents
dei:LegalEntity
us-gaap:TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

us-gaap:TimeDeposits

us-gaap:TimeDeposits100000OrMore

us-gaap:TimeDepositsLessThan100000

us-gaap:TradingSecurities
us-gaap:FairValueByAssetClass
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument
us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:SecurityOwnedAndSoldNotYetPurchasedAtFairValue
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:UnderlyingAssetClass
us-gaap:FairValueByLiabilityClass
us-gaap:FairValueByMeasurementBasis
us-gaap:FinancialInstrument
us-gaap:SecurityOwnedAndSoldNotYetPurchasedAtFairValue
us-gaap:UnderlyingAssetClass
us-gaap:FairValueByAssetClass, us-gaap:FairValueByLiabilityClass
us-gaap:TradingSecuritiesDebt
us-gaap:FairValueByAssetClass, us-gaap:FairValueByLiabilityClass, us-gaap:UnderlyingAssetClass
us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument
us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument, us-gaap:UnderlyingAssetClass
us-gaap:FairValueByLiabilityClass, us-gaap:SecurityOwnedAndSoldNotYetPurchasedAtFairValue
us-gaap:FinancialInstrument, us-gaap:SecurityOwnedAndSoldNotYetPurchasedAtFairValue
us-gaap:FairValueByAssetClass, us-gaap:FairValueByLiabilityClass
us-gaap:TradingSecuritiesEquity
us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument

us-gaap:TreasuryStockShares

us-gaap:UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums

us-gaap:UnsecuredDebt
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementFrequency

us-gaap:WeightedAverageRateDomesticDepositTimeDeposits

Tables

  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-06-302010-03-31
us-gaap:CommonStockValue ████████▇▇▇▆▆▆▆▆▆▆▆▆▆▆▅▅▅▅▄▄▄▄▁▁▁▁▁▁▁▁11.16611.16611.16611.16611.16611.16611.16611.16610.86910.86910.74610.410.45410.45410.42610.42610.42610.42610.42610.42610.40110.1799.959.8619.8269.8199.5629.5369.5369.4878.2458.0588.0558.0538.0328.0328.0328.023NANA
 us-gaap:PreferredStockParOrStatedValuePerShare us-gaap:StatementClassOfStock sf:NoncumulativePerpetualSeriesCPreferredStockNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CommonStockSharesIssued ████████▇▇▆▅▅▅▅▅▅▅▅▅▅▄▃▂▂▂▁▁74.44117174.44114674.44111374.44109474.44107374.44104674.44101774.44100172.46012772.45991171.63698669.69085669.69084669.69084669.50784269.50784269.50784269.50828169.50784269.50784269.33809167.8592366.33601865.73059865.50475165.46020363.74407463.573335NANA54.96785853.720013NA53.68542353.54777453.54777453.54681353.487849NANA
us-gaap:PreferredStockSharesIssued █▅▅▅▅▅▃▃▃▃▃▃▃▃▃▃▁▁▁▁▁▁▁▁▁0.02140.01240.01240.01240.01240.01240.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.00.00.00.00.00.00.00.00.0NA0.00.0NA3.03.0NANA0.00.00.00.00.0NANA
us-gaap:CommonStockSharesAuthorized ██████▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁194.0194.0194.0194.0194.0194.097.097.097.097.097.097.097.097.097.097.097.097.097.097.097.097.097.097.097.0NA97.097.0NANA97.097.0NA97.097.097.097.097.0NANA
us-gaap:PreferredStockSharesAuthorized ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄3.03.03.03.03.03.03.03.03.03.03.03.03.03.03.03.03.03.03.03.03.03.03.03.03.0NA3.03.0NA0.00.0NANA3.03.03.03.03.0NANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding ▄▅▆▆▇▇▇███▁█▇▇▇▆▅▅▇▇▆▆▆▅▅▅▅▄▄▁74.38776.61977.81378.14479.07979.2180.70681.48481.29981.78968.78280.88180.02180.69579.53977.54475.98276.08679.35579.75977.85677.35977.5476.68175.64175.69175.49575.19174.0969.189NA63.05462.67862.669NANANANANANA
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic ▇▇▇▇██████▆▆▆▆▅▅▅▅▆▆▆▅▅▅▅▄▄▄▃▁70.52771.28670.4771.19772.51971.771.66671.91971.69271.99968.78268.52268.55668.38666.63666.48266.79267.57968.1569.63368.3768.00666.85166.69166.30266.03764.85964.70664.50560.054NA53.60153.56953.243NA52.36752.93252.53446.25746.08
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount ▁█3.865.333NA6.9476.567.51NA9.5659.6079.79NA12.35911.46512.309NA11.0629.198.507NA10.1269.4869.353NA9.999.3399.654NA10.4859.5859.135NA9.4539.1099.426NA10.78510.31310.6456.094NA
us-gaap:EarningsPerShareBasic ▇▆█▇▇▆▇▇▆▆▁▅▄▅▃▂▂▃▂▂▂▄▄▃▄▄▄▅▃▂▄▄▃▄▃▃▁▃▃▃1.461.151.791.471.431.351.561.411.181.2-0.060.940.740.920.370.240.150.40.160.250.310.630.670.60.660.720.741.080.460.240.740.70.490.650.520.430.060.60.460.52
us-gaap:EarningsPerShareDiluted ▇▆█▇▇▆▇▆▆▆▁▅▄▄▃▂▂▃▂▂▂▄▄▃▄▄▄▅▃▂▄▄▃▄▃▃▁▃▃▃1.391.071.621.341.311.221.381.251.041.06-0.060.790.630.780.310.210.130.360.140.220.270.560.580.520.580.630.640.930.40.210.630.60.420.550.430.350.050.50.40.45
 us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets dei:LegalEntity sf:StifelBank█▅▆▇▇▇▁▃▃▃▃▃▄▄▅▃▃▃▂▄▆▅▂▂▂1.88e-071.56e-071.6900000000000002e-071.79e-071.7699999999999998e-071.75e-071.23e-071.3800000000000002e-071.44e-071.4599999999999998e-071.43e-071.44e-071.49e-071.54e-071.6e-071.3700000000000002e-071.3700000000000002e-071.4e-071.36e-071.48e-071.7199999999999998e-071.56e-071.29e-071.33e-071.29e-07NA1.27e-071.28e-071.26e-071.25e-071.16e-071.1500000000000001e-071.19e-071.05e-07NA9.9e-081.2e-07NANANA
 us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets dei:LegalEntity sf:StifelBankAndTrust▃▁▂▄▅▆█▇1.24e-071.17e-071.2099999999999998e-071.31e-071.34e-071.3800000000000002e-071.4599999999999998e-071.4199999999999997e-07NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets dei:LegalEntity,us-gaap:StatementEquityComponents sf:StifelBank,us-gaap:CommonStock█▅▆▇▇▇▁▃▃▃▃▃▄▄▅▃▃▃▂▄▆1.88e-071.56e-071.6900000000000002e-071.79e-071.7699999999999998e-071.75e-071.23e-071.3800000000000002e-071.44e-071.4599999999999998e-071.43e-071.44e-071.49e-071.54e-071.6e-071.3700000000000002e-071.3700000000000002e-071.4e-071.36e-071.48e-071.7199999999999998e-07NANANANANANANANANANANANANANANANANANANA
 us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets dei:LegalEntity,us-gaap:StatementEquityComponents sf:StifelBankAndTrust,us-gaap:CommonStock▃▁▂▅▅▆█▇1.24e-071.17e-071.2099999999999998e-071.31e-071.34e-071.3700000000000002e-071.44e-071.4199999999999997e-07NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets us-gaap:ConsolidatedEntities srt:ParentCompany█▁▄▅▅▆▅▅▆1.93e-071.66e-071.76e-071.81e-071.8e-071.85e-071.82e-071.8e-071.84e-07NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets us-gaap:ConsolidatedEntities,us-gaap:StatementEquityComponents srt:ParentCompany,us-gaap:CommonStock▄▁▄▅▅▅██▇1.53e-071.43e-071.5199999999999998e-071.56e-071.56e-071.59e-071.6800000000000002e-071.67e-071.64e-07NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CapitalToRiskWeightedAssets dei:LegalEntity sf:StifelBank█▄▆▇▇▆▁▃▃▃▃▃▃▄▅▂▂▂▂▄▆▄▁▁▁2.01e-071.65e-071.8e-071.91e-071.89e-071.86e-071.35e-071.5e-071.54e-071.56e-071.53e-071.53e-071.57e-071.62e-071.6800000000000002e-071.45e-071.45e-071.49e-071.4599999999999998e-071.59e-071.82e-071.64e-071.36e-071.3900000000000001e-071.35e-07NA1.3200000000000002e-071.34e-071.3e-071.3e-071.2e-071.18e-071.23e-071.08e-07NA1.0199999999999999e-071.23e-07NANANA
 us-gaap:CapitalToRiskWeightedAssets dei:LegalEntity sf:StifelBankAndTrust▃▁▂▄▅▆█▇1.3900000000000001e-071.3e-071.33e-071.43e-071.45e-071.49e-071.56e-071.5199999999999998e-07NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CapitalToRiskWeightedAssets us-gaap:ConsolidatedEntities srt:ParentCompany█▁▄▅▅▆▅▅▅2.0399999999999997e-071.7699999999999998e-071.88e-071.93e-071.92e-071.97e-071.9400000000000002e-071.93e-071.91e-07NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-06-302010-03-31
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ▄▄█▄▄▃▇▃▃▃▆▅▆▅▅▅▅▄▄▄▄▄▄▃▄▄▄▃▃▂▂▂▂▂▂▁▂▂▁▁605.314633.108975.699585.587559.517516.338851.325532.144531.349541.656823.95738.794742.291691.427677.509661.369669.407634.085593.771601.371607.849574.001590.636534.683568.989555.377574.156490.174511.421453.24426.434425.992384.264409.343363.294340.52365.24372.855330.358314.371
us-gaap:Revenues ▇██▇▇▆▇▆▆▆▆▅▆▅▅▅▅▄▄▄▄▄▄▃▄▄▄▃▃▂▂▂▂▂▂▁▂▂▁▁908.901937.391975.699865.716853.678819.868851.325786.81780.011776.811823.95738.794742.291691.427677.509661.369669.407634.085593.771601.371607.849574.001590.636534.683568.989555.377574.156490.174511.421453.24426.434425.992384.264409.343363.294340.52365.24372.855330.358314.371
us-gaap:RevenuesNetOfInterestExpense ▇▇█▆▆▅▅▅▅▅▆▄▄▄▃▃▃▃▂▂▂▂▂▁▂895.817913.034944.251821.572800.787770.42793.449738.342742.732750.358804.085721.169725.647675.531661.391641.986652.145619.974581.286591.575597.751560.982578.076523.455560.105NANANANANANANANANANANANANANANA
us-gaap:InterestIncomeOperating ▆▇▇████▇▇▆▅▅▅▄▄▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁128.368161.177167.087178.784187.94191.071184.534169.76154.421137.734126.615117.862108.951100.95390.84474.88165.7862.78648.63943.37643.85242.73644.93452.09646.11342.82640.739.1332.93329.80629.97726.3627.18125.25724.95324.16121.22918.85614.65414.647
us-gaap:GainLossOnInvestments ▅▁▆▃▇▅▃▅▄▅▅▅▅▅▅▅▅▅▅▃▅▆▅▅▅▅▅▄▅▅▇█▅▆▅▄▅▅▅▅3.285-31.0436.643-13.20512.312.174-12.338-2.909-4.649-2.884-0.5291.033-0.6042.459-1.8830.231-0.085-3.8260.847-15.043-0.7285.669-0.916-4.0513.1621.783-1.683-11.0162.91-3.5316.16222.642-1.3227.952-1.937-4.611.3533.3170.034-0.008
us-gaap:InterestExpense ▂▄▅▆▇▇█▇▅▄▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▂▂▂▁▂▁▁▁13.08424.35731.44844.14452.89149.44857.87648.46837.27926.45319.86517.62516.64415.89616.11819.38317.26214.11112.4859.79610.09813.01912.5611.2288.8428.63111.6311.53512.68511.468.6045.9129.8579.016.4166.3066.3836.2422.3492.341
us-gaap:InterestExpenseDebt █▇▇▇▇▇▇▇▇▇▆▅▅▅▅▇▅▅▃▃▃▅▅▄▂▂▂▂▂▂▁▁▁13.07311.19311.14211.12111.12211.12211.12211.24811.12211.11810.4038.6558.148.148.32712.1648.1798.1756.3315.4085.3338.6518.4597.8315.1635.1645.1645.1644.9475.1663.3893.0483.047NANANANANANANA
us-gaap:InterestPaidNet ▁▃▄▆▇▇█▆▄▂▁▁18.94328.70733.02846.87253.68749.42557.89249.11237.35225.36819.8817.614NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AllocatedShareBasedCompensationExpense ▅▅▅▅▄▅▅▅▄▅▇▅▅▅▅▇▇▅▇▅▇▄▄▅█▁▄▅▄█▄▄▄▃▃▃▃▃▄▄24.46130.76223.86123.88622.32432.11925.40727.7420.5727.07258.84826.34727.35127.91537.2154.74463.89930.4555.07229.40958.80422.35623.15423.76574.019-26.93212.61236.75217.89970.18411.53410.98211.2686.9636.8495.1947.5886.7816.60615.823
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▇▆█▇▇▇█▇▆▆▁▆▅▄▃▂▂▃▂▂▃▄▄▄▄142.96115.106162.593150.754147.982137.809155.931140.53118.347119.554-0.82108.13983.19879.01954.89427.98215.79343.91311.08222.34838.07170.06669.37765.76674.419NANANANANANANANANANANANANANANA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments ▇▆█▇▇▇█▇▆▆▁▆▅▄▃▂▂▃▂▂▃▄▄▄▄▄▄▂▃▂▄▄▃▄▃▃▁▃▃▃142.96115.106162.593150.754147.982137.809155.931140.53118.347119.554-0.82108.13983.19879.01954.89427.98215.79443.91311.08222.34838.07170.06669.37865.76677.52378.12877.98931.00851.19823.34661.06761.67743.87459.25445.02639.0233.87550.68435.94539.565
us-gaap:IncomeTaxExpenseBenefit ▇▇▇█████▇▇▅█▇▆▇▅▅▆▅▅▆▇▇▇▇▇▇▁▆▅▆▇▆▇▆▆▅▆▆▆35.07328.51731.92540.63238.22538.3741.86936.67231.0630.7931.16841.60330.38713.50728.01410.1686.02216.858-0.095.16917.18326.96923.8925.67331.94630.15525.863-43.92121.7638.72721.11323.96717.73824.48118.0116.7190.45919.28614.83615.825
us-gaap:IncomeTaxesPaidNet ▃▃▆▄█▂▅▅▃▁▃▂▃▃4.10515.42351.01926.10184.340.46640.09944.5663.79-21.0762.9250.7814.2383.573NANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ProfitLoss ▄▁█▅▅▃▅▄▁▁107.88786.589130.668110.122109.75799.439114.062103.85887.28788.761NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax ▄▁█▃▃▅▄▄▂▆▅▅▅▅▃▄▃▄▄▃▆▃▄▂▅▅▅▅▄-0.156-9.82210.171-4.106-3.3012.168-2.257-1.336-5.8343.7360.7182.6442.242.294-4.285-1.036-5.093-2.186-2.059-2.9355.293-3.978-0.96-8.3881.7320.3370.272.669-0.207NANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedOtherComprehensiveIncome▄▁█▃▃▅▄▄▂▆-0.156-9.82210.171-4.106-3.3012.168-2.258-1.335-5.8343.736NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherComprehensiveIncomeLossNetOfTax █▁▅▅▅▆▄▄▄▄▄▅▅▅▄▅▅▄▄▄▅▅▅▄▅▅▅▄▃▄▄▅▅▅▅▄▅▅80.438-84.75511.88911.76111.02626.142-13.133-5.997-16.978-6.629-9.2018.0025.8777.628-4.9239.373.729-7.685-5.042-3.8354.2023.473-0.758-11.1644.7963.8251.397-5.018-32.191-4.136-2.7899.868-1.9727.749-0.182-14.1891.5194.533NANA
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest █▁▆▆▅▆▅▅▄▄188.3251.834142.557121.883120.783125.581100.92997.86170.30982.132NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss ▇▆█▇▇▆▇▇▆▆▁▅▄▅▃▂▂▃▂▂▂▃▃▃▃▄▄▅▃▂▃▃▂▃▃▂▁▃▂▂107.88786.589130.69109.414109.08599.207114.062103.85887.28788.761-1.98866.53652.81165.51226.8817.8149.77127.05511.17217.17920.88843.09745.18239.90343.60147.38248.26969.6929.43514.61939.95437.7126.13634.77327.01622.3043.41631.39821.10923.74
us-gaap:ComprehensiveIncomeNetOfTax █▁▆▆▆▆▅▅▄▄▁▄▃▄▂▂▂▂▂▂▂▃▃▂▃▃▃▄▁188.3251.834142.579121.175120.111125.349100.92997.86170.30982.132-11.18974.53858.68873.1421.95727.18413.519.376.1313.34425.0946.5744.42328.73948.39751.20749.66564.672-2.756NANANANANA26.8348.1154.935NA22.129NA
us-gaap:PreferredStockDividendsIncomeStatementImpact ▇▇▇▇█▂▂▂▂▂▂▂▂▂▂▁4.8434.8444.8434.8445.2882.3442.3442.3432.3442.3442.3442.3432.3442.3442.3431.563NANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic ▇▆█▇▇▆▇▇▆▆▁▅▄▅▃▂▂▃▂▂103.04481.745125.847104.57103.79796.863111.718101.51584.94386.417-4.33264.19350.46763.16824.53716.2519.77127.05511.17217.179NANANANANANANANANANANANANANANANANANANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-06-302010-03-31
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-06-302010-03-31
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-06-302010-03-31
us-gaap:Assets ███▇▇▇█▇▇▇▇▆▆▆▆▅▅▄▄▃▃▃▃▃▃▃▂▂▂▂▂▂▂▁▁▁▁▁25624.22525896.00624610.22524160.77724343.59724183.55924519.59823760.04822608.16921715.34221383.95320484.0819533.57519135.89219129.35617204.90815385.60214213.72813335.9159359.17910139.5429373.1379518.1519326.1179575.0129387.8149008.878709.4598493.1918133.7556966.146139.536138.5355465.6944951.94942.3644513.6084537.205NANA
us-gaap:Liabilities ██▇▇▇▇█▇▇▇▇▆▆▆▆▅▅▄▄▂▃▂▂▂▃▂▂▂▂▂▂▂▂▁▁▁▁▁21740.16522425.6820940.43520603.02920858.17520750.36221322.00520598.47919653.80718797.80218522.37717551.67516688.26616357.98916390.94814513.21812894.73711796.85210843.4996866.0897619.2917009.8937196.1137087.5687401.8217287.6746946.896711.8396592.076226.9585466.1614707.0884761.3724117.4343642.8383673.6563210.1723243.241NANA
us-gaap:LiabilitiesAndStockholdersEquity ███▇▇▇█▇▇▇▇▆▆▆▆▅▅▄▄▃▃▃▃▃▃▃▂▂▂▂▂▂▂▁▁▁▁▁25624.22525896.00624610.22524160.77724343.59724183.55924519.59823760.04822608.16921715.34221383.95320484.0819533.57519135.89219129.35617204.90815385.60214213.72813335.9159359.17910139.5429373.1379518.1519326.1179575.0129387.8149008.878709.4598493.1918133.7556966.146139.536138.5355465.6944951.94942.3644513.6084537.205NANA
us-gaap:StockholdersEquity █▇▇▇▇▇▆▆▆▅▅▅▅▅▅▅▄▄▄▄▄▄▄▄▃▃▃▃▃▃▂▁▁▁▁▁▁▁3884.063470.3263614.7913501.7153429.1263376.6233167.5933161.5692954.3622917.542861.5762932.4052845.3092777.9032738.4082691.692490.8652416.8762492.4162493.092520.2512363.2442322.0382238.5492173.1912100.142058.8491994.4891897.991903.6661494.6611427.1241371.8451342.9421302.1051261.7511296.4791287.007NANA
 us-gaap:TierOneRiskBasedCapital dei:LegalEntity sf:StifelBank▂▂▂▁▁▁▁▁███▇▇▇▇▆▅▄▄▃▄▃▃▃▃196.916168.855154.299148.62142.2135.18977.24475.3851111.8911091.8381056.2111007.303972.08928.829945.748741.927625.318552.469457.3368.273447.907404.567422.996406.362384.734NA344.388316.53300.57273.724248.207228.149218.439184.001NA0.1472840.127973NANANA
 us-gaap:TierOneRiskBasedCapital dei:LegalEntity sf:StifelBankAndTrust▃▃▁▃▄▅█▇1058.4011039.68995.4911037.0651071.7781109.1091176.9151142.936NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:TierOneRiskBasedCapital dei:LegalEntity,us-gaap:StatementEquityComponents sf:StifelBank,us-gaap:CommonStock▂▂▂▁▁▁▁▁███▇▇▇▇▆▅▄▄▃▃196.916168.855154.299148.62142.2135.18977.24475.3851111.8911091.8381056.2111007.303972.08928.829945.748741.927625.318552.469457.3368.273423.984NANANANANANANANANANANANANANANANANANANA
 us-gaap:TierOneRiskBasedCapital dei:LegalEntity,us-gaap:StatementEquityComponents sf:StifelBankAndTrust,us-gaap:CommonStock▄▃▁▃▄▆█▇1058.4011039.68991.2381032.7521067.5611105.4461163.5141142.936NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:TierOneRiskBasedCapital us-gaap:ConsolidatedEntities srt:ParentCompany█▄▄▄▅▄▂▂▁2606.1212257.5492287.0852266.3562301.1522256.2492103.3392081.841977.651NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:TierOneRiskBasedCapital us-gaap:ConsolidatedEntities,us-gaap:StatementEquityComponents srt:ParentCompany,us-gaap:CommonStock█▅▆▅▆▅▅▅▁2071.1211947.5491972.8321952.0431986.9351942.5861939.9381931.841762.24NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-06-302010-03-31
us-gaap:CashAndCashEquivalentsAtCarryingValue ▇▆▅▄▄▄█▃▂▂▃▃▃▃▄▃▂▃▄▃▃▂▃▃▂▃▃▃▂▃▂▁▂▁▁▁▁▁▂▁1791.7551382.921142.596868.866797.357777.7811936.56694.302472.237450.343696.283588.916678.054658.387912.932675.057364.101577.35811.019607.1641.937403.756689.782535.118420.29525.409716.56649.244366.926573.664403.941193.333441.699226.458167.671214.619150.964124.87262.702145.701
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-06-302010-03-31
us-gaap:AmortizationOfIntangibleAssets ▅▅▅▄▄▄▄▃▃▃▃▃▃▃▄▃▅▃▅▂▂▂▃▂▂▇█▂▂▁▁▁▁▂▂▁▂▁▁▁4.75.0325.0553.83.53.5933.8163.03.02.7383.0432.93.22.9813.8692.65.02.9744.4711.91.81.9422.6041.61.76.4817.9861.31.71.1381.1831.21.21.3291.7231.21.31.0640.70.764
us-gaap:PropertyPlantAndEquipmentNet ▆▆█▇█▇▃▂▁▁▁▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁839.984829.8241107.9281043.3221155.1211077.891372.939297.846154.217153.307155.12174.64180.584172.912172.828173.874176.439182.45181.966183.02159.365137.865124.246126.007119.991120.973106.446124.765148.815148.886141.40396.38898.349101.401104.74NA85.33283.743NANA
us-gaap:Goodwill ████▇▇▇▇▆▆▆▆▆▆▆▆▆▆▆▆▆▅▅▅▄▄▄▄▄▄▂▁▁▁▁▁▁▁1180.7021184.5141194.0741158.1231056.3571056.1111034.6791025.714984.483984.288968.834968.609969.764977.729962.282989.126975.921974.266915.602884.793886.011801.246795.026762.305737.994730.392727.336742.654743.585730.006419.393361.735361.735358.988358.988309.519309.519302.022NANA
us-gaap:IntangibleAssetsNetExcludingGoodwill ▇██▆▆▆▆▆▆▆▅▅▆▅▆▄▅▄▃▃▃▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁149.841154.646161.773116.438119.727123.83119.655118.923115.81118.969109.627112.019115.253113.323116.30492.63895.18892.92263.17758.47960.75852.62154.56341.79743.35545.07849.88928.07829.39631.08528.96730.1531.34232.53433.86330.56631.77733.5NANA
us-gaap:DeferredTaxAssetsLiabilitiesNet NA114.989104.38111.108101.935105.388112.008116.88108.30594.16105.152204.658133.603203.63225.453254.587229.383216.321285.127268.157258.157204.337258.142234.173218.888200.142243.554291.566206.19181.885124.576NANANA177.803NANANANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-06-302010-03-31
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-06-302010-03-31
us-gaap:LongTermDebt █▆▆▆▆▆▆▆▆▆▆▅▅▅▅▅▄▄▄▃▃▃▄▄▂▂▂▂▂▂▂▁▁▁1411.9041017.2691017.011016.7511016.4921016.1161015.9731015.7141015.4551015.1951014.94796.609796.296795.192795.891795.78740.785740.409750.0450.0450.0450.0625.0625.0325.0325.0325.0357.111378.024380.934383.992175.0175.0175.0NANANANANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-06-302010-03-31
us-gaap:StockholdersEquity █▇▇▇▇▇▆▆▆▅▅▅▅▅▅▅▄▄▄▄▄▄▄▄▃▃▃▃▃▃▂▁▁▁▁▁▁▁3884.063470.3263614.7913501.7153429.1263376.6233167.5933161.5692954.3622917.542861.5762932.4052845.3092777.9032738.4082691.692490.8652416.8762492.4162493.092520.2512363.2442322.0382238.5492173.1912100.142058.8491994.4891897.991903.6661494.6611427.1241371.8451342.9421302.1051261.7511296.4791287.007NANA
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest █▅▇▆▅▅▃▃▂▁▁3884.063470.3263669.793557.7483485.4223433.1973197.5933161.5692954.3622917.542861.576NANANA2738.408NANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CommonStockValue ████████▇▇▇▆▆▆▆▆▆▆▆▆▆▆▅▅▅▅▄▄▄▄▁▁▁▁▁▁▁▁11.16611.16611.16611.16611.16611.16611.16611.16610.86910.86910.74610.410.45410.45410.42610.42610.42610.42610.42610.42610.40110.1799.959.8619.8269.8199.5629.5369.5369.4878.2458.0588.0558.0538.0328.0328.0328.023NANA
us-gaap:AdditionalPaidInCapital ▆▅█▇▆▅▇▇▂▁▂▄▃▃▅1853.1911837.951909.2861889.8151867.2091826.6041893.3041873.2321736.8531719.711733.3481800.4241784.6541767.6221840.551NANANANANANA1628.7551634.1141593.7211558.5521533.9681544.1431533.8491505.4431496.9091100.1371067.1961060.311051.8631078.7431065.0181076.841082.806NANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▆▁▇▆▅▄▃▃▄▅▆▆▆▅▅▅▅▄▅▅▅▅▅▅▆▅▅▅▅███▇▇▇███-16.022-96.46-11.705-23.594-35.355-46.381-72.523-59.389-53.393-36.415-26.736-17.534-25.537-31.414-39.042-34.119-43.489-47.218-39.533-34.491-30.656-34.858-38.331-37.573-26.409-31.205-35.03-36.427-31.4090.7824.9187.707-2.161-0.189-7.9387.7566.4334.914NANA
us-gaap:TreasuryStockValue ███▇▆▄▅▂▂▁▁▂▂▂▃▃▃▃▃317.61321.241319.66289.498236.596168.424180.85778.97665.11829.60539.30858.74464.72158.655100.485111.105101.259106.171104.934NANANANANANA0.0640.0645.49812.3851.3922.5051.5474.9073.38353.6463.0227.79439.754NANA
 us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementClassOfStock sf:NoncumulativePerpetualSeriesCPreferredStockNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementClassOfStock,us-gaap:SubsidiarySaleOfStock us-gaap:SeriesCPreferredStock,us-gaap:OverAllotmentOptionNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents us-gaap:PreferredStock225.0NA0.00.00.0160.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents us-gaap:AdditionalPaidInCapital▄█▄▄▄█▃▅▁▅26.81733.79926.47626.326.77133.31725.62127.75221.44428.154NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities █▃▆▅▃▁▆▄▄▁▂▅905.692-5.691593.556343.71656.429-366.84577.611166.694157.069-371.848-215.296357.408NANANANANANANANANA-300.425304.524341.893-57.87-338.278269.102343.25333.43356.431-213.575252.138-113.07-189.76175.222-52.252175.162-252.244102.944-79.39
us-gaap:NetCashProvidedByUsedInInvestingActivities ▇▁▄▇█▆█▅▃▅▄▁8.867-1065.991-516.79583.526171.885-88.943260.429-237.428-745.919-266.323-421.924-1099.125NANANANANANANANANA-100.267-211.72148.568-83.484-146.29926.54-72.712-680.762-379.34-404.42-327.165-202.36-291.914-95.692-413.7735.296-211.915-205.2026.37
us-gaap:NetCashProvidedByUsedInFinancingActivities ▂█▄▂▃▁▅▄▆▅▆▆-591.5011387.404255.559-310.246-257.901-764.282517.709202.915702.767324.304809.497674.96NANANANANANANANANA118.54763.352-267.74734.503293.089-228.5959.106440.811493.702828.915-174.321530.815539.926-126.932531.963-154.852334.966219.25956.901
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▅▅▅▅▄▁█▅▅▃▅▄322.902305.9342.45112.932-32.877-1217.9091353.487130.85108.083-310.131172.994-64.113NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities █▃▆▅▃▁▆▄▄▁▂▅905.692-5.691593.556343.71656.429-366.84577.611166.694157.069-371.848-215.296357.408NANANANANANANANANA-300.425304.524341.893-57.87-338.278269.102343.25333.43356.431-213.575252.138-113.07-189.76175.222-52.252175.162-252.244102.944-79.39
us-gaap:NetIncomeLoss ▇▆█▇▇▆▇▇▆▆▁▅▄▅▃▂▂▃▂▂▂▃▃▃▃▄▄▅▃▂▃▃▂▃▃▂▁▃▂▂107.88786.589130.69109.414109.08599.207114.062103.85887.28788.761-1.98866.53652.81165.51226.8817.8149.77127.05511.17217.17920.88843.09745.18239.90343.60147.38248.26969.6929.43514.61939.95437.7126.13634.77327.01622.3043.41631.39821.10923.74
us-gaap:ProfitLoss ▄▁█▅▅▃▅▄▁▁107.88786.589130.668110.122109.75799.439114.062103.85887.28788.761NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:DeferredIncomeTaxExpenseBenefit ▄▅▄▄▄▄▅▄▄▅█▁▇▅▅▃▃▇▄▄▃▆▄▄▃▆▆▁▄▅▄▄▅▅▄▄▄▅▄▄-14.34217.0986.71-14.084-1.5912.10213.536-5.845-9.92416.487103.254-72.99868.019.87319.614-28.203-18.32872.979-11.392-7.983-32.67249.469-11.855-8.266-18.5443.91744.298-80.171-5.36214.846-8.353-0.42222.7831.5141.98711.179-10.75323.351-2.393-3.476
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▇▁▄▇█▆█▅▃▅▄▁8.867-1065.991-516.79583.526171.885-88.943260.429-237.428-745.919-266.323-421.924-1099.125NANANANANANANANANA-100.267-211.72148.568-83.484-146.29926.54-72.712-680.762-379.34-404.42-327.165-202.36-291.914-95.692-413.7735.296-211.915-205.2026.37
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▂█▄▂▃▁▅▄▆▅▆▆-591.5011387.404255.559-310.246-257.901-764.282517.709202.915702.767324.304809.497674.96NANANANANANANANANA118.54763.352-267.74734.503293.089-228.5959.106440.811493.702828.915-174.321530.815539.926-126.932531.963-154.852334.966219.25956.901
us-gaap:PaymentsForRepurchaseOfCommonStock ▁▅▃▅▆▅█▂▄▁▁▁0.35756.1634.99655.46871.09753.869107.6916.63143.0442.8390.00.0NANA0.018.346NANA51.894NANANANANANANA0.00.0NANA2.2172.813NANA0.044.95NANA25.495-1.067
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-06-302010-03-31
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:LongtermDebtType sf:SeniorNotes400Due20304e-08NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA

None

us-gaap:CommonStockValue

us-gaap:CommonStockValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value111111111111111110101010101010101010101010109.959.8619.8269.8199.5629.5369.5369.4878.2458.0588.0558.0538.0328.0328.0328.0235.2824.558
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.20.20.20.20.10.1

None

us-gaap:PreferredStockParOrStatedValuePerShare us-gaap:StatementClassOfStock

us-gaap:PreferredStockParOrStatedValuePerShare

sf:NoncumulativePerpetualSeriesCPreferredStock


None
Period End2020-05-19
Value1.0
Percentage of PreferredStockParOrStatedValuePerShare100.0

None

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesIssued


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-312012-09-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value74747474747474747272716969696969696969696967666565656363545353535353533530
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:PreferredStockSharesIssued

us-gaap:PreferredStockSharesIssued


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302013-03-312012-12-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value21400.012400.012400.012400.012400.012400.06000.06000.06000.06000.06000.06000.06000.06000.06000.06000.0000000000003000000.03000000.00000000
Percentage of PreferredStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.00.00.00.00.0100.0100.00.00.00.00.00.00.00.0

None

us-gaap:CommonStockSharesAuthorized

us-gaap:CommonStockSharesAuthorized


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302012-12-312012-09-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value194194194194194194979797979797979797979797979797979797979797979797979797979797
Percentage of CommonStockSharesAuthorized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:PreferredStockSharesAuthorized

us-gaap:PreferredStockSharesAuthorized


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302013-03-312012-12-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value3000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.0003000000.03000000.03000000.03000000.03000000.03000000.03000000.0
Percentage of PreferredStockSharesAuthorized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value747677787979808181816880808079777576797977777776757575757469636262
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value707170717271717171716868686866666667686968686666666664646460535353525252514646
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value3.865.3336.9476.567.519.5659.6079.79121112119.198.507109.4869.3539.999.3399.654109.5859.1359.4539.1099.426101010106.094
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1.461.151.791.471.431.351.561.411.181.2-0.060.940.740.920.370.240.150.40.160.250.310.630.670.60.660.720.741.080.460.240.740.70.490.650.520.430.060.60.88-1.650.460.52
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1.391.071.621.341.311.221.381.251.041.06-0.060.790.630.780.310.210.130.360.140.220.270.560.580.520.580.630.640.930.40.210.630.60.420.550.430.350.050.50.87-1.650.40.45
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets dei:LegalEntity

us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets

sf:StifelBank


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value0.1880.1560.1690.1790.1770.1750.1230.1380.1440.1460.1430.1440.1490.1540.160.1370.1370.140.1360.1480.1720.1560.1290.1330.1290.1270.1280.1260.1250.1160.1150.1190.1050.0990.12
Percentage of TierOneRiskBasedCapitalToRiskWeightedAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:StifelBankAndTrust


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.1240.1170.1210.1310.1340.1380.1460.142
Percentage of TierOneRiskBasedCapitalToRiskWeightedAssets66.075.071.673.275.778.9118.7102.9

us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets dei:LegalEntity, us-gaap:StatementEquityComponents

sf:StifelBank, us-gaap:CommonStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value0.1880.1560.1690.1790.1770.1750.1230.1380.1440.1460.1430.1440.1490.1540.160.1370.1370.140.1360.1480.172
Percentage of TierOneRiskBasedCapitalToRiskWeightedAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:StifelBankAndTrust, us-gaap:CommonStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.1240.1170.1210.1310.1340.1370.1440.142
Percentage of TierOneRiskBasedCapitalToRiskWeightedAssets66.075.071.673.275.778.3117.1102.9

us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets us-gaap:ConsolidatedEntities

srt:ParentCompany


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.1930.1660.1760.1810.180.1850.1820.180.184
Percentage of TierOneRiskBasedCapitalToRiskWeightedAssets102.7106.4104.1101.1101.7105.7148.0130.4127.8

us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

srt:ParentCompany, us-gaap:CommonStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.1530.1430.1520.1560.1560.1590.1680.1670.164
Percentage of TierOneRiskBasedCapitalToRiskWeightedAssets81.491.789.987.288.190.9136.6121.0113.9

None

us-gaap:CapitalToRiskWeightedAssets dei:LegalEntity

us-gaap:CapitalToRiskWeightedAssets

sf:StifelBank


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value0.2010.1650.180.1910.1890.1860.1350.150.1540.1560.1530.1530.1570.1620.1680.1450.1450.1490.1460.1590.1820.1640.1360.1390.1350.1320.1340.130.130.120.1180.1230.1080.1020.123
Percentage of CapitalToRiskWeightedAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:StifelBankAndTrust


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.1390.130.1330.1430.1450.1490.1560.152
Percentage of CapitalToRiskWeightedAssets69.278.873.974.976.780.1115.6101.3

us-gaap:CapitalToRiskWeightedAssets us-gaap:ConsolidatedEntities

srt:ParentCompany


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.2040.1770.1880.1930.1920.1970.1940.1930.191
Percentage of CapitalToRiskWeightedAssets101.5107.3104.4101.0101.6105.9143.7128.7124.0

None

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-06-302010-03-31
Value605633975585559516851532531541823738742691677661669634593601607574590534568555574490511453426425384409363340365372330314
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues66.667.5100.067.665.563.0100.067.668.169.7100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService

sf:Commissions


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value177211183163164155167158166165168162172
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax29.233.318.828.029.530.119.629.731.430.620.522.023.2
Percentage of Revenues19.522.518.818.919.319.00.020.121.421.320.522.023.2
Percentage of Revenues sf:Commissions0.00.00.00.00.00.00.00.00.00.00.00.00.0

sf:InvestmentBanking


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value217179277198179161201169161176232181185
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax35.928.328.433.932.131.323.631.830.332.628.224.625.0
Percentage of Revenues23.919.128.423.021.019.70.021.520.622.728.224.625.0
Percentage of Revenues sf:InvestmentBanking0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InvestmentAdvisoryManagementAndAdministrativeService


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value198237223217211195210200199195186179172
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax32.937.623.037.237.737.824.737.737.636.122.624.323.3
Percentage of Revenues21.925.423.025.124.723.80.025.525.625.222.624.323.3
Percentage of Revenues us-gaap:InvestmentAdvisoryManagementAndAdministrativeService0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

us-gaap:InvestmentAdvisoryManagementAndAdministrativeService, sf:GlobalWealthManagement


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value198237223217211195210200199195
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax32.937.623.037.237.737.824.737.737.636.1
Percentage of Revenues21.925.423.025.124.723.80.025.525.625.2
Percentage of Revenues us-gaap:InvestmentAdvisoryManagementAndAdministrativeService sf:GlobalWealthManagement0.00.00.00.00.00.00.00.00.00.0

us-gaap:InvestmentAdvisoryManagementAndAdministrativeService, sf:InstitutionalGroup


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.0180.0150.0170.0120.0150.0140.0120.0080.0110.012
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues0.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues us-gaap:InvestmentAdvisoryManagementAndAdministrativeService sf:InstitutionalGroup0.00.00.00.00.00.00.00.00.00.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementBusinessSegments

sf:GlobalWealthManagement


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value334388368350345315334330329326
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax55.361.437.759.861.861.239.362.162.060.3
Percentage of Revenues36.841.537.740.440.538.50.042.042.242.0
Percentage of Revenues sf:GlobalWealthManagement0.00.00.00.00.00.00.00.00.00.0

sf:InstitutionalGroup


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value269243321234213199243201201215
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax44.638.433.040.138.238.628.637.938.039.7
Percentage of Revenues29.726.033.027.125.024.30.025.625.927.7
Percentage of Revenues sf:InstitutionalGroup0.00.00.00.00.00.00.00.00.00.0

us-gaap:AllOtherSegments


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.7410.7690.690.6340.1991.3271.0041.0180.8891.032
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.10.10.10.00.30.10.20.20.2
Percentage of Revenues0.10.10.10.10.00.20.00.10.10.1
Percentage of Revenues us-gaap:AllOtherSegments0.00.00.00.00.00.00.00.00.00.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementGeographical

country:GB


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value48303638392138282537
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.04.93.76.57.14.14.65.34.97.0
Percentage of Revenues5.33.33.74.44.62.60.03.63.34.9
Percentage of Revenues country:GB0.00.00.00.00.00.00.00.00.00.0

sf:OtherStates


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value19147.5791.3371.1441.311.310.9192.451.027
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.22.30.80.20.20.30.20.20.50.2
Percentage of Revenues2.11.60.80.20.10.20.00.10.30.1
Percentage of Revenues sf:OtherStates0.00.00.00.00.00.00.00.00.00.0

srt:Americas


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value537587646546518493541503502502
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax88.892.866.393.292.795.763.694.594.792.8
Percentage of Revenues59.162.766.363.160.860.20.063.964.564.7
Percentage of Revenues srt:Americas0.00.00.00.00.00.00.00.00.00.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementGeographical, us-gaap:StatementBusinessSegments

country:GB, sf:InstitutionalGroup


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value48303638392138282537
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.04.93.76.57.14.14.65.34.97.0
Percentage of Revenues5.33.33.74.44.62.60.03.63.34.9
Percentage of Revenues country:GB sf:InstitutionalGroup0.00.00.00.00.00.00.00.00.00.0

sf:OtherStates, sf:InstitutionalGroup


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value19147.5791.3371.1441.311.310.9192.451.027
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.22.30.80.20.20.30.20.20.50.2
Percentage of Revenues2.11.60.80.20.10.20.00.10.30.1
Percentage of Revenues sf:OtherStates sf:InstitutionalGroup0.00.00.00.00.00.00.00.00.00.0

srt:Americas, sf:GlobalWealthManagement


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value334388368350345315334330329325
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax55.361.437.759.861.861.239.362.162.060.1
Percentage of Revenues36.841.537.740.440.538.50.042.042.241.9
Percentage of Revenues srt:Americas sf:GlobalWealthManagement0.00.00.00.00.00.00.00.00.00.0

srt:Americas, sf:InstitutionalGroup


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value202198277195172176203172173176
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax33.431.328.533.330.934.223.932.432.632.6
Percentage of Revenues22.221.128.522.620.321.60.021.922.222.7
Percentage of Revenues srt:Americas sf:InstitutionalGroup0.00.00.00.00.00.00.00.00.00.0

srt:Americas, us-gaap:AllOtherSegments


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.7410.7690.690.6340.1991.3271.0041.0180.8891.032
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.10.10.10.00.30.10.20.20.2
Percentage of Revenues0.10.10.10.10.00.20.00.10.10.1
Percentage of Revenues srt:Americas us-gaap:AllOtherSegments0.00.00.00.00.00.00.00.00.00.0

None

us-gaap:Revenues

us-gaap:Revenues


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-06-302010-03-31
Value908937975865853819851786780776823738742691677661669634593601607574590534568555574490511453426425384409363340365372330314
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:RevenuesNetOfInterestExpense

us-gaap:RevenuesNetOfInterestExpense


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value895913944821800770793738742750804721725675661641652619581591597560578523560
Percentage of RevenuesNetOfInterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues98.697.496.894.993.894.093.293.895.296.697.697.697.897.797.697.197.497.897.998.498.397.797.997.998.4

us-gaap:RevenuesNetOfInterestExpense us-gaap:StatementBusinessSegments

sf:GlobalWealthManagement


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value505582552534532510509498497485473453451442407390386379347357343329310317307297292274282266255251240248224219225238236207199
Percentage of RevenuesNetOfInterestExpense56.563.858.665.166.566.364.267.567.064.758.962.962.365.561.660.859.261.359.760.457.458.753.860.654.90.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues55.662.256.761.762.462.30.063.363.862.557.561.460.964.060.259.057.759.958.559.456.557.452.759.354.053.551.056.055.358.959.859.162.560.761.864.561.864.00.00.060.5
Percentage of Revenues sf:GlobalWealthManagement0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

sf:InstitutionalGroup


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value398332391290270261286245252270332264276237253258260241246232258238276215255249270205220176165169135148134113132126165138124
Percentage of RevenuesNetOfInterestExpense44.436.441.535.333.833.936.133.334.036.041.336.738.135.238.340.340.038.942.439.243.342.547.841.145.60.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues43.835.440.233.531.731.90.031.332.434.840.335.837.234.337.439.139.038.141.538.642.541.646.840.244.945.047.141.843.138.938.739.835.236.336.933.336.434.10.00.037.7
Percentage of Revenues sf:InstitutionalGroup0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AllOtherSegments


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-8.061-2.16-0.601-3.221-2.248-1.476-2.447-5.771-7.42-5.295-2.2542.864-2.496-4.6680.688-6.8465.186-1.107-12.2552.144-4.169-7.035-9.126-8.946-2.812-0.414
Percentage of RevenuesNetOfInterestExpense-0.9-0.2-0.1-0.4-0.3-0.2-0.3-0.8-1.0-0.7-0.30.4-0.3-0.70.1-1.10.8-0.2-2.10.4-0.7-1.3-1.6-1.7-0.50.0
Percentage of Revenues-0.9-0.2-0.1-0.4-0.3-0.20.0-0.7-1.0-0.7-0.30.4-0.3-0.70.1-1.00.8-0.2-2.10.4-0.7-1.2-1.5-1.7-0.5-0.1
Percentage of Revenues us-gaap:AllOtherSegments0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RevenuesNetOfInterestExpense us-gaap:StatementGeographical

country:GB


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value63374943432647323541333832242137373537223035242928
Percentage of RevenuesNetOfInterestExpense7.14.15.35.35.53.45.94.44.85.54.25.34.53.63.35.85.85.86.53.75.16.34.25.65.1
Percentage of Revenues7.04.05.15.05.13.20.04.14.55.34.15.24.43.53.25.65.75.66.33.75.06.14.15.45.1
Percentage of Revenues country:GB0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

country:US


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value810860883775754741742703703706762681690648637602611581541567564522550491528
Percentage of RevenuesNetOfInterestExpense90.594.293.594.494.296.293.695.394.794.194.894.595.296.096.493.893.893.893.195.994.593.295.394.094.4
Percentage of Revenues89.291.890.589.688.490.40.089.490.290.992.692.293.193.894.191.191.491.791.194.392.991.093.292.092.9
Percentage of Revenues country:US0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

sf:OtherCountries


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value2115112.5842.5562.83.4581.9734.2062.7325.0142.5613.123.274
Percentage of RevenuesNetOfInterestExpense2.41.71.20.30.30.40.40.30.60.40.60.40.40.5
Percentage of Revenues2.31.61.20.30.30.30.00.30.50.40.60.30.40.5
Percentage of Revenues sf:OtherCountries0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:InterestIncomeOperating

us-gaap:InterestIncomeOperating


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-06-302010-03-31
Value1281611671781871911841691541371261171081009074656248434342445246424039322929262725242421181414
Percentage of InterestIncomeOperating100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues14.117.217.120.722.023.321.721.619.817.715.416.014.714.613.411.39.89.98.27.27.27.47.69.78.17.77.18.06.46.67.06.27.16.26.97.15.85.14.44.7

None

us-gaap:GainLossOnInvestments

us-gaap:GainLossOnInvestments


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3.285-31.0436.643-13.205122.174-12.338-2.909-4.649-2.884-0.5291.033-0.6042.459-1.8830.231-0.085-3.8260.847-15.043-0.7285.669-0.916-4.0513.1621.783-1.683-11.0162.91-3.531622-1.3227.952-1.937-4.611.3533.3174.1971.2080.034-0.008
Percentage of GainLossOnInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.4-3.30.7-1.51.40.30.0-0.4-0.6-0.4-0.10.1-0.10.4-0.30.0-0.0-0.60.1-2.5-0.11.0-0.2-0.80.60.3-0.3-2.20.6-0.83.85.3-0.31.9-0.5-1.40.40.90.00.00.0-0.0

None

us-gaap:InterestExpense

us-gaap:InterestExpense


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value132431445249574837261917161516191714129.796101312118.8428.631111112118.6045.9129.8579.016.4166.3066.3836.2424.8233.6982.3492.341
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues1.42.63.25.16.26.06.86.24.83.42.42.42.22.32.42.92.62.22.11.61.72.32.12.11.61.62.02.42.52.52.01.42.62.21.81.91.71.70.00.00.70.7

None

us-gaap:InterestExpenseDebt

us-gaap:InterestExpenseDebt


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value13111111111111111111108.6558.148.148.327128.1798.1756.3315.4085.3338.6518.4597.8315.1635.1645.1645.1644.9475.1663.3893.0483.047
Percentage of InterestExpenseDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues1.41.21.11.31.31.40.01.41.41.41.31.21.11.21.21.81.21.31.10.90.91.51.41.50.90.90.91.11.01.10.80.70.8

None

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value182833465349574937251917
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues2.13.13.45.46.36.00.06.24.83.32.42.4

None

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:AllocatedShareBasedCompensationExpense


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value24302323223225272027582627273754633055295822232374-26.932123617701110116.9636.8495.1947.5886.787.1291511615
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues2.73.32.42.82.63.90.03.52.63.57.13.63.74.05.58.39.54.89.34.99.73.93.94.413.0-4.82.27.53.515.52.72.62.91.71.91.52.11.80.00.05.05.0

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:AwardType

sf:IncentiveStockPlan


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value39373833342929312623
Percentage of AllocatedShareBasedCompensationExpense160.7120.3159.7140.7152.892.5115.3114.3130.888.3
Percentage of Revenues4.33.93.93.94.03.60.04.03.43.1
Percentage of Revenues sf:IncentiveStockPlan0.00.00.00.00.00.00.00.00.00.0

None

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value142115162150147137155140118119-0.8210883795427154311223870696574
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues15.712.316.717.417.316.818.317.915.215.4-0.114.611.211.48.14.22.46.91.93.76.312.211.712.313.1

None

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value142115162150147137155140118119-0.821088379542715431122387069657778773151236161435945393.8755066-142.5563539
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues15.712.316.717.417.316.80.017.915.215.4-0.114.611.211.48.14.22.46.91.93.76.312.211.712.313.614.113.66.310.05.214.314.511.414.512.411.51.113.60.00.010.912.6

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments us-gaap:StatementBusinessSegments

sf:GlobalWealthManagement


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value156194196202192194188183187176169161153142122109105939297939884948979797278696968616962555561625140
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments109.3168.7120.7134.5130.0141.1121.2130.5158.8147.9-20714.8149.6184.2179.8223.8389.8665.1212.5830.9435.1246.8141.1121.3143.0114.9102.0101.3232.6154.2297.7113.5110.9139.8116.7139.6142.51430.3121.393.9-36.3112.5
Percentage of Revenues17.220.720.123.422.523.70.023.324.122.820.621.920.620.518.116.515.714.715.516.215.517.214.317.615.714.313.814.715.415.316.216.016.016.917.316.315.216.50.00.012.2
Percentage of Revenues sf:GlobalWealthManagement0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

sf:InstitutionalGroup


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value83415548393242343644735152394744422940254132352942454834302821331723109.1522121432730
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments58.136.334.232.326.623.427.024.430.437.3-8963.447.863.650.586.6160.5266.466.5369.2115.7110.246.150.644.955.158.462.3112.858.7120.535.254.240.040.023.923.5566.542.265.3-19.485.6
Percentage of Revenues9.14.55.75.64.63.90.04.44.65.78.97.07.15.87.06.86.34.66.94.36.95.65.95.57.58.28.57.15.96.25.07.84.65.83.02.76.05.70.00.09.3
Percentage of Revenues sf:InstitutionalGroup0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AllOtherSegments


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-96.414-120.801-89.243-100.692-83.672-88.885-75.181-77.152-105.572-101.787-244.181-105.334-122.931-102.905-115.473-126.02-131.342-78.616-121.913-100.732-97.846-61.112-62.535-57.76-56.991-47.17
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments-67.4-104.9-54.9-66.8-56.5-64.5-48.2-54.9-89.2-85.129778.2-97.4-147.8-130.2-210.4-450.4-831.6-179.0-1100.1-450.7-257.0-87.2-90.1-87.8-73.5-60.4
Percentage of Revenues-10.6-12.9-9.1-11.6-9.8-10.80.0-9.8-13.5-13.1-29.6-14.3-16.6-14.9-17.0-19.1-19.6-12.4-20.5-16.8-16.1-10.6-10.6-10.8-10.0-8.5
Percentage of Revenues us-gaap:AllOtherSegments0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-06-302010-03-31
Value352831403838413631301.16841301328106.02216-0.095.16917262325313025-43.921218.7272123172418160.459191415
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues3.93.03.34.74.54.74.94.74.04.00.15.64.12.04.11.50.92.7-0.00.92.84.74.04.85.65.44.5-9.04.31.95.05.64.66.05.04.90.15.24.55.0

None

us-gaap:IncomeTaxesPaidNet

us-gaap:IncomeTaxesPaidNet


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value4.105155126840.46640443.79-21.0762.9250.78143.573
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.51.65.23.09.90.10.05.70.5-2.70.40.11.90.5

None

us-gaap:ProfitLoss

us-gaap:ProfitLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value10786130110109991141038788
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues11.99.213.412.712.912.10.013.211.211.4

None

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value-156000.0-9822000.010171000.0-4106000.0-3301000.02168000.0-2257000.0-1336000.0-5834000.03736000.0718000.02644000.02240000.02294000.0-4285000.0-1036000.0-5093000.0-2186000.0-2059000.0-2935000.05293000.0-3978000.0-960000.0-8388000.01732000.0337000.0270000.02669000.0-207000.0
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-0.0-1.01.0-0.5-0.40.30.0-0.2-0.70.50.10.40.30.3-0.6-0.2-0.8-0.3-0.3-0.50.9-0.7-0.2-1.60.30.10.00.5-0.0

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-156000.0-9822000.010171000.0-4106000.0-3301000.02168000.0-2258000.0-1335000.0-5834000.03736000.0
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.099.9100.0100.0
Percentage of Revenues-0.0-1.01.0-0.5-0.40.30.0-0.2-0.70.5
Percentage of Revenues us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.0

None

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value80-84.75511111126-13.133-5.997-16.978-6.629-9.2018.0025.8777.628-4.9239.373.729-7.685-5.042-3.8354.2023.473-0.758-11.1644.7963.8251.397-5.018-32.191-4.136-2.7899.868-1.9727.749-0.182-14.1891.5194.533
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues8.9-9.01.21.41.33.20.0-0.8-2.2-0.9-1.11.10.81.1-0.71.40.6-1.2-0.8-0.60.70.6-0.1-2.10.80.70.2-1.0-6.3-0.9-0.72.3-0.51.9-0.1-4.20.41.2

None

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1881.834142121120125100977082
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues20.70.214.614.114.115.30.012.49.010.6

None

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value10786130109109991141038788-1.98866526526179.771271117204345394347486929143937263427223.4163141-84.3362123
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues11.99.213.412.612.812.113.413.211.211.4-0.29.07.19.54.02.71.54.31.92.93.47.57.67.57.78.58.414.25.83.29.48.96.88.57.46.50.98.40.00.06.47.6

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value10786130110109991141038788
Percentage of NetIncomeLoss100.0100.0100.0100.6100.6100.2100.0100.0100.0100.0
Percentage of Revenues11.99.213.412.712.912.10.013.211.211.4
Percentage of Revenues us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.0

None

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302011-12-312011-09-302011-06-302010-12-312010-09-302010-06-30
Value1881.834142121120125100977082-11.189745873212713196.13132546442848514964-2.756268.1154.93533-77.60722
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues20.70.214.614.014.115.30.012.49.010.6-1.410.17.910.63.24.12.03.11.02.24.18.17.55.48.59.28.713.2-0.57.42.41.40.00.06.7

None

us-gaap:PreferredStockDividendsIncomeStatementImpact

us-gaap:PreferredStockDividendsIncomeStatementImpact


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value4.8434.8444.8434.8445.2882.3442.3442.3432.3442.3442.3442.3432.3442.3442.3431.563
Percentage of PreferredStockDividendsIncomeStatementImpact100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.50.50.50.60.60.30.30.30.30.30.30.30.30.30.30.2

None

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value10381125104103961111018486-4.33264506324169.771271117
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues11.38.712.912.112.211.813.112.910.911.1-0.58.76.89.13.62.51.54.31.92.9

None

us-gaap:Assets

us-gaap:Assets


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value256242589624610241602434324183245192376022608217152138320484195331913519129172041538514213133359359101399373951893269575938790088709849381336966613961385465495149424513453742133167
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:VariableInterestEntityNotPrimaryBeneficiary


None
Period End2020-06-30
Value247
Percentage of Assets1.0
Percentage of Assets1.0
Percentage of Assets us-gaap:VariableInterestEntityNotPrimaryBeneficiary100.0

us-gaap:Assets us-gaap:StatementBusinessSegments

sf:GlobalWealthManagement


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value217312207120675201532034620350210401987418726179501771717619166921631216065135811213611219105195719619557275816569858515736550560915940568951164509613839803637365832642965
Percentage of Assets84.885.284.083.483.684.285.883.682.882.782.986.085.585.284.078.978.978.978.961.161.161.161.161.161.161.161.169.969.969.973.473.4100.072.873.474.072.370.4
Percentage of Assets84.885.284.083.483.684.285.883.682.882.782.986.085.585.284.078.978.978.978.961.161.161.161.161.161.161.161.169.969.969.973.473.4100.072.873.474.072.370.4
Percentage of Assets sf:GlobalWealthManagement100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:InstitutionalGroup


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value36293566366837303720356732383511350834023313248424642448265728322530233921933418370334233476340634973428329021382085199714471275118210281076907883
Percentage of Assets14.213.814.915.415.314.813.214.815.515.715.512.112.612.813.916.516.516.516.536.536.536.536.536.536.536.536.524.624.624.620.820.821.620.821.820.121.0
Percentage of Assets14.213.814.915.415.314.813.214.815.515.715.512.112.612.813.916.516.516.516.536.536.536.536.536.536.536.536.524.624.624.620.820.821.620.821.820.121.0
Percentage of Assets sf:InstitutionalGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllOtherSegments


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value263258265277276265240374373362353380377374406791718654622221239221225
Percentage of Assets1.01.01.11.11.11.11.01.61.71.71.71.91.92.02.14.64.74.64.72.42.42.42.4
Percentage of Assets1.01.01.11.11.11.11.01.61.71.71.71.91.92.02.14.64.74.64.72.42.42.42.4
Percentage of Assets us-gaap:AllOtherSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:Liabilities

us-gaap:Liabilities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value21740224252094020603208582075021322205981965318797185221755116688163571639014513128941179610843686676197009719670877401728769466711659262265466470747614117364236733210324329502283
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets84.886.685.185.385.785.887.086.786.986.686.685.785.485.585.784.483.883.081.373.475.174.875.676.077.377.677.177.177.676.678.576.777.675.373.674.371.171.570.072.1

None

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value256242589624610241602434324183245192376022608217152138320484195331913519129172041538514213133359359101399373951893269575938790088709849381336966613961385465495149424513453742133167
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value388434703614350134293376316731612954291728612932284527772738269124902416249224932520236323222238217321002058199418971903149414271371134213021261129612871253873593424
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets15.213.414.714.514.114.012.913.313.113.413.414.314.614.514.315.616.217.018.726.624.925.224.424.022.722.422.922.922.323.421.523.222.324.626.325.528.728.429.827.60.00.0

None

us-gaap:TierOneRiskBasedCapital dei:LegalEntity

us-gaap:TierOneRiskBasedCapital

sf:StifelBank


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value196168154148142135777511111091105610079729289457416255524573684474044224063843443163002732482282181840.1472840.127973
Percentage of TierOneRiskBasedCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.80.70.60.60.60.60.30.34.95.04.94.95.04.94.94.34.13.93.43.94.44.34.44.44.03.83.63.53.43.63.73.63.40.00.0
Percentage of Assets sf:StifelBank0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

sf:StifelBankAndTrust


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value1058103999510371071110911761142
Percentage of TierOneRiskBasedCapital537.5615.7645.2697.8753.7820.41523.61516.1
Percentage of Assets4.14.04.04.34.44.64.84.8
Percentage of Assets sf:StifelBankAndTrust0.00.00.00.00.00.00.00.0

us-gaap:TierOneRiskBasedCapital dei:LegalEntity, us-gaap:StatementEquityComponents

sf:StifelBank, us-gaap:CommonStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value19616815414814213577751111109110561007972928945741625552457368423
Percentage of TierOneRiskBasedCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.094.7
Percentage of Assets0.80.70.60.60.60.60.30.34.95.04.94.95.04.94.94.34.13.93.43.94.2
Percentage of Assets sf:StifelBank us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

sf:StifelBankAndTrust, us-gaap:CommonStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value1058103999110321067110511631142
Percentage of TierOneRiskBasedCapital537.5615.7642.4694.9750.7817.71506.31516.1
Percentage of Assets4.14.04.04.34.44.64.74.8
Percentage of Assets sf:StifelBankAndTrust us-gaap:CommonStock0.00.00.00.00.00.00.00.0

us-gaap:TierOneRiskBasedCapital us-gaap:ConsolidatedEntities

srt:ParentCompany


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value260622572287226623012256210320811977
Percentage of TierOneRiskBasedCapital1323.51337.01482.21524.91618.31669.02723.02761.6177.9
Percentage of Assets10.28.79.39.49.59.38.68.88.7
Percentage of Assets srt:ParentCompany0.00.00.00.00.00.00.00.00.0

us-gaap:TierOneRiskBasedCapital us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

srt:ParentCompany, us-gaap:CommonStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value207119471972195219861942193919311762
Percentage of TierOneRiskBasedCapital1051.81153.41278.61313.41397.31436.92511.42562.6158.5
Percentage of Assets8.17.58.08.18.28.07.98.17.8
Percentage of Assets srt:ParentCompany us-gaap:CommonStock0.00.00.00.00.00.00.00.00.0

None

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value179113821142868797777193669447245069658867865891267536457781160764140368953542052571664936657340319344122616721415012425320626214516123947
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.05.34.63.63.33.27.92.92.12.13.32.93.53.44.83.92.44.16.16.56.34.37.25.74.45.68.07.54.37.15.83.17.24.13.44.33.32.86.00.00.00.05.10.00.0

None

us-gaap:AmortizationOfIntangibleAssets

us-gaap:AmortizationOfIntangibleAssets


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value4.75.0325.0553.83.53.5933.8163.03.02.7383.0432.93.22.9813.8692.65.02.9744.4711.91.81.9422.6041.61.76.4817.9861.31.71.1381.1831.21.21.3291.7231.21.31.0642.00.70.764
Percentage of AmortizationOfIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AmortizationOfIntangibleAssets us-gaap:StatementBusinessSegments

sf:GlobalWealthManagement


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value1.6471.7351.7261.8521.8281.8472.1111.2961.2691.0971.1151.1181.2061.0670.8791.2432.4841.422.3161.6620.3761.2061.3570.6410.645.0430.7330.5620.5610.5740.5980.610.6090.625-4.9840.709
Percentage of AmortizationOfIntangibleAssets35.034.534.148.752.251.455.343.242.340.136.638.637.735.822.747.849.747.751.887.520.962.152.140.137.677.89.243.233.050.450.550.850.847.0-289.359.1
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets sf:GlobalWealthManagement0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

sf:InstitutionalGroup


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value3.0813.2973.3291.9681.7191.7461.7051.7051.7331.6411.9281.7282.0591.9142.991.3072.551.5542.1550.6171.3550.7361.2470.9171.0831.4386.9030.7561.1280.5640.5850.5820.5830.704-3.9150.502
Percentage of AmortizationOfIntangibleAssets65.665.565.951.849.148.644.756.857.859.963.459.664.364.277.350.351.052.348.232.575.337.947.957.363.722.286.458.266.449.649.548.548.653.0-227.241.8
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets sf:InstitutionalGroup0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-06-302011-03-312010-12-312009-12-31
Value8398291107104311551077372297154153155174180172172173176182181183159137124126119120106124148148141969810110485837162
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.33.24.54.34.74.51.51.30.70.70.70.90.90.90.91.01.11.31.42.01.61.51.31.41.31.31.21.41.81.82.01.61.61.92.11.91.81.72.0

None

us-gaap:Goodwill

us-gaap:Goodwill


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value11801184119411581056105610341025984984968968969977962989975974915884886801795762737730727742743730419361361358358309309302301166
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.64.64.94.84.34.44.24.34.44.54.54.75.05.15.05.76.36.96.99.58.78.58.48.27.77.88.18.58.89.06.05.95.96.67.26.36.96.77.25.3

us-gaap:Goodwill us-gaap:StatementBusinessSegments

sf:GlobalWealthManagement


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value335335344346346347340331290290276276277283270244244251295261262177177163163163161155155144144144144143143133133128
Percentage of Goodwill28.428.328.929.932.832.932.932.329.529.528.528.528.629.028.124.725.125.832.329.529.722.122.321.522.222.422.220.920.919.834.439.939.940.140.143.343.342.6
Percentage of Assets1.31.31.41.41.41.41.41.41.31.31.31.31.41.51.41.41.61.82.22.82.61.91.91.81.71.71.81.81.81.82.12.42.42.62.92.73.03.1
Percentage of Assets sf:GlobalWealthManagement1.51.51.71.71.71.71.61.71.61.61.61.61.71.71.71.82.02.22.84.64.23.13.02.92.82.92.92.52.62.52.83.22.43.64.03.74.14.3

sf:InstitutionalGroup


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value845849849811709708694694693693692692692694691744731722620623623624617598574566565587588585275217217215215175175173
Percentage of Goodwill71.671.771.170.167.267.167.167.770.570.571.571.571.471.071.975.374.974.267.770.570.377.977.778.577.877.677.879.179.180.265.660.160.159.959.956.756.757.4
Percentage of Assets3.33.33.53.42.92.92.82.93.13.23.23.43.53.63.64.34.85.14.76.76.16.76.56.46.06.06.36.76.97.23.93.53.53.94.33.63.94.1
Percentage of Assets sf:InstitutionalGroup23.323.823.121.819.119.921.419.819.820.420.927.928.128.426.026.328.930.928.318.216.818.217.817.616.416.517.227.528.229.319.017.00.018.220.916.319.319.6

None

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value14915416111611912311911811511810911211511311692959263586052544143454928293128303132333031333424
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.60.70.50.50.50.50.50.50.50.50.50.60.60.60.50.60.70.50.60.60.60.60.40.50.50.60.30.30.40.40.50.50.60.70.60.70.70.80.8

us-gaap:IntangibleAssetsNetExcludingGoodwill us-gaap:StatementBusinessSegments

sf:GlobalWealthManagement


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value48505355565860585254444546444541423730303123
Percentage of IntangibleAssetsNetExcludingGoodwill32.332.332.947.247.547.450.648.845.745.640.640.740.639.038.944.544.640.547.551.552.343.1
Percentage of Assets0.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.30.30.20.30.30.2
Percentage of Assets sf:GlobalWealthManagement0.20.20.30.30.30.30.30.30.30.30.30.30.30.30.30.30.40.30.30.50.50.4

sf:InstitutionalGroup


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value10110410861626559606264656668697151525533282831
Percentage of IntangibleAssetsNetExcludingGoodwill67.767.767.152.852.552.649.451.254.354.459.459.359.461.061.155.555.459.552.548.547.756.9
Percentage of Assets0.40.40.40.30.30.30.20.30.30.30.30.30.40.40.40.30.30.40.20.30.30.3
Percentage of Assets sf:InstitutionalGroup2.82.93.01.61.71.81.81.71.81.92.02.72.82.82.71.82.12.41.50.80.80.9

None

us-gaap:DeferredTaxAssetsLiabilitiesNet

us-gaap:DeferredTaxAssetsLiabilitiesNet


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value11410411110110511211610894105204133203225254229216285268258204258234218200243291206181124177
Percentage of DeferredTaxAssetsLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.40.50.40.40.50.50.50.40.51.00.71.11.21.51.51.52.12.92.52.22.72.52.32.12.73.32.42.21.83.6

None

us-gaap:LongTermDebt

us-gaap:LongTermDebt


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value14111017101710161016101610151015101510151014796796795795795740740750450450450625625325325325357378380383175175175
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.53.94.14.24.24.24.14.34.54.74.73.94.14.24.24.64.85.25.64.84.44.86.66.73.43.53.64.14.54.75.52.92.93.2

us-gaap:LongTermDebt us-gaap:LongtermDebtType

sf:NonRecourseDebt


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-31
Value1425102510251025102510251025102510251025102580080080080075075075045045045062532532532535558
Percentage of LongTermDebt100.9100.8100.8100.8100.8100.9100.9100.9100.9101.0101.0100.4100.5100.6100.5101.2101.3100.0100.0100.0100.0100.0100.0100.09.014.014.715.4
Percentage of Assets5.64.04.24.24.24.24.24.34.54.74.83.94.14.24.64.95.35.64.84.44.86.73.43.50.40.60.70.8
Percentage of Assets sf:NonRecourseDebt0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

sf:SeniorNotes400Due2030


None
Period End2020-05-31
Value400
Percentage of LongTermDebt0.0
Percentage of Assets0.0
Percentage of Assets sf:SeniorNotes400Due20300.0

None

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value388434703614350134293376316731612954291728612932284527772738269124902416249224932520236323222238217321002058199418971903149414271371134213021261129612871253873593424
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets15.213.414.714.514.114.012.913.313.113.413.414.314.614.514.315.616.217.018.726.624.925.224.424.022.722.422.922.922.323.421.523.222.324.626.325.528.728.429.827.60.00.0

None

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value388434703669355734853433319731612954291728612738
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets15.213.414.914.714.314.213.013.313.113.413.414.3

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value-16.022-96.46-11.705-23.594-35.355-46.381-72.523-59.389-53.393-36.415-26.736-39.042-39.533
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-0.4-2.8-0.3-0.7-1.0-1.4-2.3-1.9-1.8-1.2-0.9-1.40.0
Percentage of Assets-0.1-0.4-0.0-0.1-0.1-0.2-0.3-0.2-0.2-0.2-0.1-0.2-0.3
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value1853183719091889186718261893187317361719173318401820
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest47.753.052.053.153.653.259.259.358.858.960.667.20.0
Percentage of Assets7.27.17.87.87.77.67.77.97.77.98.19.613.7
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value11111111111111111010101010
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.30.30.30.30.30.30.30.40.40.40.40.40.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.10.10.10.1
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value388434703614350134293376316731612954291728612738
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.098.598.498.498.499.1100.0100.0100.0100.0100.0
Percentage of Assets15.213.414.714.514.114.012.913.313.113.413.414.3
Percentage of Assets us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:PreferredStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value535310310310310310150150150149150150
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest13.88.98.48.78.99.04.74.75.15.15.25.5
Percentage of Assets2.11.21.31.31.31.30.60.60.70.70.70.8
Percentage of Assets us-gaap:PreferredStock0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value18181728171516031512144313661265117511031033876805
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest46.849.846.845.143.442.042.740.039.837.836.132.00.0
Percentage of Assets7.16.77.06.66.26.05.65.35.25.14.84.66.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value-317.61-321.241-319.66-289.498-236.596-168.424-180.857-78.976-65.118-29.605-39.308-100.485-104.934
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-8.2-9.3-8.7-8.1-6.8-4.9-5.7-2.5-2.2-1.0-1.4-3.70.0
Percentage of Assets-1.2-1.2-1.3-1.2-1.0-0.7-0.7-0.3-0.3-0.1-0.2-0.5-0.8
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:CommonStockValue

us-gaap:CommonStockValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value111111111111111110101010101010101010101010109.959.8619.8269.8199.5629.5369.5369.4878.2458.0588.0558.0538.0328.0328.0328.0235.2824.558
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.20.20.20.20.10.1

None

us-gaap:AdditionalPaidInCapital

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value185318371909188918671826189318731736171917331800178417671840162816341593155815331544153315051496110010671060105110781065107610821085623
Percentage of AdditionalPaidInCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.27.17.87.87.77.67.77.97.77.98.18.89.19.29.617.417.217.116.316.317.117.617.718.415.817.417.319.221.821.523.923.925.819.7

None

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value-16022000.0-96460000.0-11705000.0-23594000.0-35355000.0-46381000.0-72523000.0-59389000.0-53393000.0-36415000.0-26736000.0-17534000.0-25537000.0-31414000.0-39042000.0-34119000.0-43489000.0-47218000.0-39533000.0-34491000.0-30656000.0-34858000.0-38331000.0-37573000.0-26409000.0-31205000.0-35030000.0-36427000.0-31409000.0782000.04918000.07707000.0-2161000.0-189000.0-7938000.07756000.06433000.04914000.0381000.01302000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.1-0.4-0.0-0.1-0.1-0.2-0.3-0.2-0.2-0.2-0.1-0.1-0.1-0.2-0.2-0.2-0.3-0.3-0.3-0.4-0.3-0.4-0.4-0.4-0.3-0.3-0.4-0.4-0.40.00.10.1-0.0-0.0-0.20.20.10.10.00.0

None

us-gaap:TreasuryStockValue

us-gaap:TreasuryStockValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value317321319289236168180786529395864581001111011061040.0640.0645.498121.3922.5051.5474.9073.38353632739690.242
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.21.21.31.21.00.70.70.30.30.10.20.30.30.30.50.60.70.70.80.00.00.10.10.00.00.00.10.11.11.30.60.91.60.0

None

us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementClassOfStock

us-gaap:StockIssuedDuringPeriodValueNewIssues

sf:NoncumulativePerpetualSeriesCPreferredStock


None
Period End2020-05-19
Value225
Percentage of StockIssuedDuringPeriodValueNewIssues100.0
Percentage of Assets0.0
Percentage of Assets sf:NoncumulativePerpetualSeriesCPreferredStock0.0

us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementClassOfStock, us-gaap:SubsidiarySaleOfStock

us-gaap:SeriesCPreferredStock, us-gaap:OverAllotmentOption


None
Period End2020-05-19
Value25
Percentage of StockIssuedDuringPeriodValueNewIssues11.1
Percentage of Assets0.0
Percentage of Assets us-gaap:SeriesCPreferredStock us-gaap:OverAllotmentOption0.0

us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302019-12-312019-09-302019-06-302019-03-31
Value-7.020.00.0-0.306-4.706
Percentage of StockIssuedDuringPeriodValueNewIssues0.00.00.00.00.0
Percentage of Assets0.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.0

us-gaap:PreferredStock


None
Period End2020-06-302019-12-312019-09-302019-06-302019-03-31
Value2250.00.00.0160
Percentage of StockIssuedDuringPeriodValueNewIssues0.00.00.00.00.0
Percentage of Assets0.00.00.00.00.0
Percentage of Assets us-gaap:PreferredStock0.00.00.00.00.0

None

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value26332626263325272128
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.0

None

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value905-5.69159334356-366.84577166157-371.848-215.296357-300.425304341-57.87-338.2782693433356-213.575252-113.07-189.76175-52.252175-252.244188-69.805102-79.39
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues99.6-0.660.839.76.6-44.70.021.220.1-47.9-26.148.4-52.351.663.9-10.2-60.946.970.06.512.5-50.159.2-29.4-46.448.2-15.348.0-67.70.00.031.2-25.3

None

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value8.867-1065.991-516.79583171-88.943260-237.428-745.919-266.323-421.924-1099.125-100.267-211.72148-83.484-146.29926-72.712-680.762-379.34-404.42-327.165-202.36-291.914-95.692-413.7735.296-211.915-226.887-142.329-205.2026.37
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues1.0-113.7-53.09.620.1-10.80.0-30.2-95.6-34.3-51.2-148.8-17.5-35.89.1-14.7-26.34.6-14.8-133.1-83.7-94.8-76.8-52.7-71.3-26.3-121.51.5-56.80.00.0-62.12.0

None

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-591.5011387255-310.246-257.901-764.28251720270232480967411863-267.74734293-228.5959.106440493828-174.321530539-126.932531-154.8523349114721956
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-65.1148.026.2-35.8-30.2-93.20.025.890.141.798.291.420.710.7-50.16.152.8-39.81.986.2108.9194.4-40.9138.1131.9-34.9156.2-42.489.80.00.066.418.1

None

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value322305342112-32.877-1217.9091353130108-310.131172-64.113
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues35.532.635.113.0-3.9-148.50.016.613.9-39.921.0-8.7

None

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value905-5.69159334356-366.84577166157-371.848-215.296357-300.425304341-57.87-338.2782693433356-213.575252-113.07-189.76175-52.252175-252.244188-69.805102-79.39
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues99.6-0.660.839.76.6-44.70.021.220.1-47.9-26.148.4-52.351.663.9-10.2-60.946.970.06.512.5-50.159.2-29.4-46.448.2-15.348.0-67.70.00.031.2-25.3

None

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value10786130109109991141038788-1.98866526526179.771271117204345394347486929143937263427223.4163141-84.3362123
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues11.99.213.412.612.812.113.413.211.211.4-0.29.07.19.54.02.71.54.31.92.93.47.57.67.57.78.58.414.25.83.29.48.96.88.57.46.50.98.40.00.06.47.6

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value10786130110109991141038788
Percentage of NetIncomeLoss100.0100.0100.0100.6100.6100.2100.0100.0100.0100.0
Percentage of Revenues11.99.213.412.712.912.10.013.211.211.4
Percentage of Revenues us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.0

None

us-gaap:ProfitLoss

us-gaap:ProfitLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value10786130110109991141038788
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues11.99.213.412.712.912.10.013.211.211.4

None

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DeferredIncomeTaxExpenseBenefit


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-14.342176.71-14.084-1.5912.10213-5.845-9.92416103-72.998681919-28.203-18.32872-11.392-7.983-32.67249-11.855-8.266-18.544344-80.171-5.36214-8.353-0.42222311.98711-10.753236.373-54.717-2.393-3.476
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value8.867-1065.991-516.79583171-88.943260-237.428-745.919-266.323-421.924-1099.125-100.267-211.72148-83.484-146.29926-72.712-680.762-379.34-404.42-327.165-202.36-291.914-95.692-413.7735.296-211.915-226.887-142.329-205.2026.37
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues1.0-113.7-53.09.620.1-10.80.0-30.2-95.6-34.3-51.2-148.8-17.5-35.89.1-14.7-26.34.6-14.8-133.1-83.7-94.8-76.8-52.7-71.3-26.3-121.51.5-56.80.00.0-62.12.0

None

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-591.5011387255-310.246-257.901-764.28251720270232480967411863-267.74734293-228.5959.106440493828-174.321530539-126.932531-154.8523349114721956
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-65.1148.026.2-35.8-30.2-93.20.025.890.141.798.291.420.710.7-50.16.152.8-39.81.986.2108.9194.4-40.9138.1131.9-34.9156.2-42.489.80.00.066.418.1

None

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312016-09-302015-12-312013-12-312013-09-302012-12-312012-09-302011-12-312011-09-302010-12-312010-09-302010-06-302010-03-31
Value0.357563455715310716432.8390.00.00.018510.00.02.2172.8130.0440.06725-1.067
Percentage of PaymentsForRepurchaseOfCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.00.00.0100.0100.00.0100.00.0100.0100.0100.0

None

us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:LongtermDebtType

us-gaap:DebtInstrumentInterestRateStatedPercentage

sf:SeniorNotes400Due2030


None
Period End2020-06-30
Value0.04
Percentage of DebtInstrumentInterestRateStatedPercentage100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations sf:SeniorNotes400Due20300.0

sf:AmortizationOfLoansAndAdvancesToFinancialAdvisorsAndOtherEmployees

sf:AmortizationOfLoansAndAdvancesToFinancialAdvisorsAndOtherEmployees


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2327252423212321211922232223411914183.3842112151516161616171515141414131313141414111112
Percentage of AmortizationOfLoansAndAdvancesToFinancialAdvisorsAndOtherEmployees100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:ChangeInSecuritiesPurchasedUnderAgreementsToResell

sf:ChangeInSecuritiesPurchasedUnderAgreementsToResell


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value12-73.96239-27.477-28.538131-77.539
Percentage of ChangeInSecuritiesPurchasedUnderAgreementsToResell100.0100.0100.0100.0100.0100.0100.0

sf:IncreaseDecreaseInDraftsPayable

sf:IncreaseDecreaseInDraftsPayable


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value-0.418-29.01934-8.569-7.24-4.26313
Percentage of IncreaseDecreaseInDraftsPayable100.0100.0100.0100.0100.0100.0100.0

sf:InterestIncomeExpenseOther

sf:InterestIncomeExpenseOther


None
Period End2020-06-302019-06-30
Value-2.9489.511
Percentage of InterestIncomeExpenseOther100.0100.0

sf:InterestIncomeFromFinancialInstrumentsOwned

sf:InterestIncomeFromFinancialInstrumentsOwned


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value2.8594.5745.1335.6686.4146.3135.7625.7334.9834.9294.614.3714.346
Percentage of InterestIncomeFromFinancialInstrumentsOwned100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:LoansAndLeasesReceivableAllowanceImpactOfCurrentExpectedCreditLossAdoption

sf:LoansAndLeasesReceivableAllowanceImpactOfCurrentExpectedCreditLossAdoption


None
Period End2020-06-302020-03-31
Value0-11736000.0
Percentage of LoansAndLeasesReceivableAllowanceImpactOfCurrentExpectedCreditLossAdoption0.0100.0

sf:LoansAndLeasesReceivableAllowanceImpactOfCurrentExpectedCreditLossAdoption us-gaap:FinancialInstrument

sf:CommercialAndIndustrial


None
Period End2020-06-302020-03-31
Value0-19940000.0
Percentage of LoansAndLeasesReceivableAllowanceImpactOfCurrentExpectedCreditLossAdoption0.0169.9

sf:ConstructionAndLand


None
Period End2020-06-302020-03-31
Value02674000.0
Percentage of LoansAndLeasesReceivableAllowanceImpactOfCurrentExpectedCreditLossAdoption0.0-22.8

sf:OtherLoans


None
Period End2020-06-302020-03-31
Value058000.0
Percentage of LoansAndLeasesReceivableAllowanceImpactOfCurrentExpectedCreditLossAdoption0.0-0.5

sf:SecuritiesBasedLoans


None
Period End2020-06-302020-03-31
Value01346000.0
Percentage of LoansAndLeasesReceivableAllowanceImpactOfCurrentExpectedCreditLossAdoption0.0-11.5

us-gaap:CommercialRealEstate


None
Period End2020-06-302020-03-31
Value0791000.0
Percentage of LoansAndLeasesReceivableAllowanceImpactOfCurrentExpectedCreditLossAdoption0.0-6.7

us-gaap:HomeEquity


None
Period End2020-06-302020-03-31
Value039000.0
Percentage of LoansAndLeasesReceivableAllowanceImpactOfCurrentExpectedCreditLossAdoption0.0-0.3

us-gaap:ResidentialMortgage


None
Period End2020-06-302020-03-31
Value03499000.0
Percentage of LoansAndLeasesReceivableAllowanceImpactOfCurrentExpectedCreditLossAdoption0.0-29.8

us-gaap:UnallocatedFinancingReceivables


None
Period End2020-06-302020-03-31
Value0-203000.0
Percentage of LoansAndLeasesReceivableAllowanceImpactOfCurrentExpectedCreditLossAdoption0.01.7

sf:MarginBalances

sf:MarginBalances


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value6.364101113131313131210109.9199.0228.1828.0127.4388.1518.5466.7536.1835.1234.3624.7134.8734.8434.6664.7014.7224.5444.2554.4924.7814.921
Percentage of MarginBalances100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:NetRevenuesAccountedForByIndividualClientMaximumPercentage

sf:NetRevenuesAccountedForByIndividualClientMaximumPercentage


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302012-09-302012-06-302011-09-302011-06-30
Value0.10.100.10.10.100.10.10.100.10.10.100.10.10.100.10.10.100.10.100.10.10.10.10.1
Percentage of NetRevenuesAccountedForByIndividualClientMaximumPercentage100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.0100.0

sf:OtherInterestAndDividendIncomeExpenseNet

sf:OtherInterestAndDividendIncomeExpenseNet


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-1.5463.2156.1829.40110128.8915.375.2083.3171.7141.4940.4692.0987.887-0.097
Percentage of OtherInterestAndDividendIncomeExpenseNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:OtherRevenueFromContractsWithCustomer

sf:OtherRevenueFromContractsWithCustomer


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value124.7676.5085.2493.7483.7823.664.3943.7963.718
Percentage of OtherRevenueFromContractsWithCustomer100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:OtherRevenueFromContractsWithCustomer us-gaap:StatementBusinessSegments

sf:GlobalWealthManagement


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value114.0015.8184.6153.5492.455-0.2834.3943.7963.718
Percentage of OtherRevenueFromContractsWithCustomer94.083.989.487.994.764.9-7.7100.0100.0100.0

us-gaap:AllOtherSegments


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.7440.7660.690.6340.1991.3271.0041.0180.8891.032
Percentage of OtherRevenueFromContractsWithCustomer6.016.110.612.15.335.127.423.223.427.8

sf:OtherRevenues

sf:OtherRevenues


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value9.2024.44113.4989.7578.4273.3361.7335.277-0.361
Percentage of OtherRevenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:PaymentOfContingentConsideration

sf:PaymentOfContingentConsideration


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-31
Value192.2082.6010.03.9312.9940.9370.04.0097.93.3518.356
Percentage of PaymentOfContingentConsideration100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0

sf:PaymentsOfDividendsCommonStockAndEquityAwardHolders

sf:PaymentsOfDividendsCommonStockAndEquityAwardHolders


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value111110108.408128.6158.88.5948.6296.853
Percentage of PaymentsOfDividendsCommonStockAndEquityAwardHolders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:RedemptionPricePercentageOfPrincipalAmount us-gaap:LongtermDebtType

sf:RedemptionPricePercentageOfPrincipalAmount

sf:SeniorNotes350Due2020


None
Period End2020-06-302020-03-312019-12-312019-09-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value01.0000001.00001.00001.0
Percentage of RedemptionPricePercentageOfPrincipalAmount0.0100.00.00.00.00.00.0100.00.00.00.0100.00.00.00.0100.0

sf:SeniorNotes425Due2024


None
Period End2020-03-31
Value1.0
Percentage of RedemptionPricePercentageOfPrincipalAmount100.0

sf:SeniorNotes520Due2047


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value01.00001.00001.0
Percentage of RedemptionPricePercentageOfPrincipalAmount0.0100.00.00.00.00.00.00.00.0100.0

sf:RedemptionPricePercentageOfPrincipalAmount us-gaap:StatementScenario, us-gaap:LongtermDebtType

srt:ScenarioForecast, sf:SeniorNotes400Due2030


None
Period End2030-02-15
Value1.0
Percentage of RedemptionPricePercentageOfPrincipalAmount0.0

sf:RevenueFromContractWithCustomerExcludingOtherSegmentRevenueAndAssessedTax

sf:RevenueFromContractWithCustomerExcludingOtherSegmentRevenueAndAssessedTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value605633690585559516581532531541
Percentage of RevenueFromContractWithCustomerExcludingOtherSegmentRevenueAndAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:SharebasedCompensationArrangementByShareBasedPaymentAwardAwardSharesPotentiallyConvertedRangePercentage us-gaap:Range, us-gaap:AwardType

sf:SharebasedCompensationArrangementByShareBasedPaymentAwardAwardSharesPotentiallyConvertedRangePercentage

srt:Maximum, sf:PerformanceBasedRestrictedStockUnits


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value02.00002.000
Percentage of SharebasedCompensationArrangementByShareBasedPaymentAwardAwardSharesPotentiallyConvertedRangePercentage0.0100.00.00.00.0100.00.00.0

sf:UncommittedSecuredLinesOfCredit

sf:UncommittedSecuredLinesOfCredit


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.0835-100.035-100.010000.00.00.010000.00.00.01000
Percentage of UncommittedSecuredLinesOfCredit0.0100.0100.0100.0100.0100.00.00.00.0100.00.00.00.0100.0

sf:UncommittedSecuredLinesOfCredit us-gaap:ShortTermDebtType

sf:CompanyOwnedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-198.01980.00.0-276.027656-243.0-73.0316178-27.0-94.0199
Percentage of UncommittedSecuredLinesOfCredit0.023.7-0.00.0276.027.60.00.00.031.60.00.00.019.9

sf:UnitsNetOfForfeitures

sf:UnitsNetOfForfeitures


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value6.7461061026109217141490157.311133531263298135265253373530860.04522137392414681818178420829.54544
Percentage of UnitsNetOfForfeitures100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:WeightedAverageInterestRateOnBorrowings us-gaap:ShortTermDebtType

sf:WeightedAverageInterestRateOnBorrowings

us-gaap:FederalHomeLoanBankAdvances


None
Period End2020-06-302019-09-302019-06-302018-09-302018-06-302017-09-302017-06-302016-06-302016-03-31
Value0.01090.0170.02120.01650.01470.00630.01210.01320.0081
Percentage of WeightedAverageInterestRateOnBorrowings100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccretionAmortizationOfDiscountsAndPremiumsInvestments

us-gaap:AccretionAmortizationOfDiscountsAndPremiumsInvestments


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-4909000.0-6210000.0-7542000.0-11604000.0-6356000.0-8727000.0-6593000.0-7237000.0-5831000.0-5646000.0-4589000.0-5284000.0-2134000.0-3830000.0-3697000.0-3906000.0-3033000.0-1622000.0-193000.0-335000.0-1030000.0-1192000.0-1462000.0-1267000.0-2158000.0-960000.0-2753000.0-4000000.0-4557000.02989000.0-4938000.0-4550000.0-3779000.0-2886000.0-3581000.0-3162000.0-2437000.0-3602000.0-3203000.0-2136000.0-1324000.0-1889000.0
Percentage of AccretionAmortizationOfDiscountsAndPremiumsInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForLoanAndLeaseLossRecoveryOfBadDebts

us-gaap:AllowanceForLoanAndLeaseLossRecoveryOfBadDebts


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value1000.01000.027000.015000.01000.0112000.011000.01000.01000.02000.02000.037000.01000.02000.01000.05000.04000.09000.076000.09000.0-37000.0-12000.0-21000.0-5000.0-25000.0-1000.0-17000.0-10000.0-25000.0-47000.00-1000.0
Percentage of AllowanceForLoanAndLeaseLossRecoveryOfBadDebts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:AllowanceForLoanAndLeaseLossRecoveryOfBadDebts us-gaap:FinancialInstrument

sf:OtherLoans


None
Period End2020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1000.022000.013000.01000.024000.01000.01000.001000.01000.01000.0
Percentage of AllowanceForLoanAndLeaseLossRecoveryOfBadDebts100.081.586.7100.021.49.1100.00.050.050.02.7

us-gaap:HomeEquity


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302015-12-312015-09-30
Value01000.01000.01000.001000.01000.001000.01000.01000.01000.01000.008000.0
Percentage of AllowanceForLoanAndLeaseLossRecoveryOfBadDebts0.0100.03.76.70.00.99.10.0100.050.050.02.7100.00.010.5

us-gaap:AllowanceForLoanAndLeaseLossesWriteOffs

us-gaap:AllowanceForLoanAndLeaseLossesWriteOffs


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-06-302011-12-312011-09-302011-06-302010-12-312010-09-302010-06-30
Value150000.020000.0220000.056000.054000.056000.000014000.0105000.002953000.01000.00283000.013000.02000.027000.069000.047000.059000.000472000.03871000.0017000.086000.010000.0001000.066000.02000.0
Percentage of AllowanceForLoanAndLeaseLossesWriteOffs100.0100.0100.0100.0100.0100.00.00.00.0100.0100.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.00.0100.0100.0100.00.00.0100.0100.0100.0

us-gaap:AllowanceForLoanAndLeaseLossesWriteOffs us-gaap:FinancialInstrument

sf:CommercialAndIndustrial


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312016-09-302014-12-312014-09-30
Value150000.02000.0160000.021000.046000.012000.000012000.0105000.00250000.00267000.042000.00
Percentage of AllowanceForLoanAndLeaseLossesWriteOffs100.010.072.737.585.221.40.00.00.085.7100.00.08.50.094.371.20.0

sf:OtherLoans


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312014-09-302014-06-302014-03-31
Value018000.019000.035000.08000.044000.00002000.0004000.0
Percentage of AllowanceForLoanAndLeaseLossesWriteOffs0.090.08.662.514.878.60.00.00.014.30.00.00.8

us-gaap:AvailableForSaleSecuritiesGrossRealizedGainLossNet

us-gaap:AvailableForSaleSecuritiesGrossRealizedGainLossNet


None
Period End2020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302017-12-312017-09-302017-06-302015-12-312015-09-302015-06-302014-12-312014-09-302014-06-302013-12-312013-09-302013-06-302012-12-312012-09-30
Value200000.000-300000.0-3500000.0-400000.000400000.00100000.03100000.0500000.01200000.02000000.0300000.0200000.0600000.0700000.01000000.0
Percentage of AvailableForSaleSecuritiesGrossRealizedGainLossNet100.00.00.0100.0100.0100.00.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BrokerageCommissionsRevenue

us-gaap:BrokerageCommissionsRevenue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-06-302010-03-31
Value177211183163164155167158166165168162172175178171182197187194183180210151152159152145157148134127127123123143138155103105
Percentage of BrokerageCommissionsRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BrokerageCommissionsRevenue us-gaap:StatementBusinessSegments

sf:GlobalWealthManagement


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value116136129118120109117117118119
Percentage of BrokerageCommissionsRevenue65.664.870.572.072.970.770.074.570.871.9

sf:InstitutionalGroup


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value60745445444550404846
Percentage of BrokerageCommissionsRevenue34.435.129.528.027.129.330.025.529.228.1

us-gaap:AllOtherSegments


None
Period End2020-06-302020-03-31
Value-0.0030.003
Percentage of BrokerageCommissionsRevenue-0.00.0

us-gaap:CommonStockDividendsPerShareCashPaid

us-gaap:CommonStockDividendsPerShareCashPaid


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value0.170.170.150.150.150.150.120.120.120.120.10.10000
Percentage of CommonStockDividendsPerShareCashPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:CommonStockDividendsPerShareDeclared

us-gaap:CommonStockDividendsPerShareDeclared


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value0.170.170.150.150.150.150.120.120.120.120.10.10000
Percentage of CommonStockDividendsPerShareDeclared100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:CommunicationsAndInformationTechnology

us-gaap:CommunicationsAndInformationTechnology


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-06-302010-03-31
Value43413936353536333633303434333431373634353129282725242526252219192020191818181514
Percentage of CommunicationsAndInformationTechnology100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CumulativeEffectOnRetainedEarningsNetOfTax1 us-gaap:AdjustmentsForNewAccountingPronouncements

us-gaap:CumulativeEffectOnRetainedEarningsNetOfTax1

us-gaap:AccountingStandardsUpdate201613


None
Period End2020-03-31
Value7800000.0
Percentage of CumulativeEffectOnRetainedEarningsNetOfTax1100.0

us-gaap:CumulativeEffectOnRetainedEarningsNetOfTax1 us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-7772000.087000.0-395000.0-4050000.0-6759000.000
Percentage of CumulativeEffectOnRetainedEarningsNetOfTax1-99.60.00.00.00.00.00.0

us-gaap:DefinedContributionPlanEmployerDiscretionaryContributionAmount

us-gaap:DefinedContributionPlanEmployerDiscretionaryContributionAmount


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value3.63.53.83.23.03.42.73.46.30.41.61.83.30.42.01.61.61.32.91.61.61.6
Percentage of DefinedContributionPlanEmployerDiscretionaryContributionAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationAmortizationAndAccretionNet

us-gaap:DepreciationAmortizationAndAccretionNet


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value9.8579.3789.4398.5210107.3937.0366.8036.6645.519107.6279.022111010109.329126.97.9527.5537.47.27.1138.8268.68.77.8768.1087.47.47.1899.1436.56.55.6066.2436.46.25.342
Percentage of DepreciationAmortizationAndAccretionNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet

us-gaap:InterestRateContract


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value199000.0-251000.0397000.0604000.0764000.01542000.01685000.01504000.01225000.0533000.0
Percentage of DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsCommonStockCash us-gaap:StatementEquityComponents

us-gaap:DividendsCommonStockCash

us-gaap:RetainedEarnings


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1414121212121010118.629
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsPreferredStockCash us-gaap:StatementEquityComponents

us-gaap:DividendsPreferredStockCash

us-gaap:RetainedEarnings


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value4.8434.8444.8434.8445.2882.3442.3442.3432.3442.344
Percentage of DividendsPreferredStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-156000.0-9822000.010130000.0-4064000.0-3290000.02156000.0-2262000.0-1331000.0-5834000.03736000.0
Percentage of EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1 us-gaap:FairValueByAssetClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1

sf:MunicipalSecurities


None
Period End2020-06-302020-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value0-1000.05000.03000.0-1000.01000.06000.0-1000.04000.05000.026000.01000.04000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings10.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:OtherInvestment


None
Period End2020-06-302015-12-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-478000.0-1151000.0-1576000.03030000.0938000.0205000.02619000.0692.09238700.0-3514000.0-2070000.0-3661000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings10.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AuctionRateSecurities


None
Period End2020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-1622000.0579000.0-418000.0100000.0107000.0997000.016000.073000.0181000.0-13000.0251000.0366000.0-293000.057000.0361000.0422000.0460000.0-631000.0-788000.0546000.0-101000.0407000.0-309.0205430.0-519000.0617000.0-304000.065000.0350000.015000.0451000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings10.00.00.00.02140.033233.3-1600.07300.03016.71300.06275.07320.0-1126.95700.09025.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Loans


None
Period End2020-06-302020-03-31
Value-786000.0-2827000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings10.0282700.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPeriodIncreaseDecrease us-gaap:FairValueByAssetClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPeriodIncreaseDecrease

sf:MunicipalSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value0.0-0.0010.00.0-0.52-0.095-0.047-0.0010.0010.006-0.0010.0040.005-0.5240.0010.004
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPeriodIncreaseDecrease0.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:OtherInvestment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-302014-06-30
Value34-0.020.00.00.0-0.004-3.0273.0270.4650.75515-14.6812.685-6.433-8.813-12.615
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPeriodIncreaseDecrease0.02000.00.00.0-0.00.0577.7302700.011625.00.00.00.00.00.00.00.0

us-gaap:AuctionRateSecurities


None
Period End2020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-302014-06-30
Value-1.6220.579-3.0680.10.107-8.7780.016-9.5020.181-0.013-14.4340.366-1.918-0.143-0.1140.422-5.7827.8695.837-3.679-4.976-1.518
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPeriodIncreaseDecrease0.00.00.0-19.2-112.618676.6-1600.0-950200.03016.71300.0-360850.07320.0366.0-14300.0-2850.00.00.00.00.00.00.00.0

us-gaap:Loans


None
Period End2020-06-302020-03-312019-12-312019-09-30
Value-0.6481.108-8.64917
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPeriodIncreaseDecrease0.0-110800.00.00.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases us-gaap:FairValueByAssetClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases

us-gaap:Loans


None
Period End2020-06-302019-09-30
Value0.13917
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales us-gaap:FairValueByAssetClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales

sf:OtherInvestment


None
Period End2020-06-302020-03-312015-12-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value0.00.023.089110.2662.4457.231100.004709-6.7941992.6022.9131.286
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Loans


None
Period End2020-06-302020-03-31
Value0.0013.004
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales0.015020.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3 us-gaap:FairValueByAssetClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3

sf:OtherInvestment


None
Period End2020-06-302016-12-312016-09-302016-06-302013-12-312013-09-30
Value340.00.00.465-12.58839912
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3100.00.00.0100.0100.0100.0

us-gaap:FloorBrokerageExchangeAndClearanceFees

us-gaap:FloorBrokerageExchangeAndClearanceFees


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-06-302010-03-31
Value1514111011101111109.365101111109.66210121110129.124108.3089.9719.2489.0288.44810109.0587.488.0317.7477.6126.0977.46.8946.6495.2725.744
Percentage of FloorBrokerageExchangeAndClearanceFees100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnSaleOfMortgageLoans

us-gaap:GainLossOnSaleOfMortgageLoans


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312010-09-30
Value102.55.44.52.30.90.42.62.72.52.93.23.42.94.34.94.12.73.33.33.52.61.62.21.71.21.22.23.34.64.23.63.22.84.32.01.4-3.21.4
Percentage of GainLossOnSaleOfMortgageLoans100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GoodwillTranslationAndPurchaseAccountingAdjustments

us-gaap:GoodwillTranslationAndPurchaseAccountingAdjustments


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-3.8120.412351010.246218.965410.195150.225-1.155-7.96515-26.844134.25558
Percentage of GoodwillTranslationAndPurchaseAccountingAdjustments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GoodwillTranslationAndPurchaseAccountingAdjustments us-gaap:StatementBusinessSegments

sf:InstitutionalGroup


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-3.8120.412371010.908140.0160.3460.0231.5420.225-0.231-2.2293.089-26.844131176
Percentage of GoodwillTranslationAndPurchaseAccountingAdjustments100.0100.0104.9100.0369.167.30.20.811.810.0100.020.028.020.0100.0100.0262.8130.1

us-gaap:GoodwillWrittenOffRelatedToSaleOfBusinessUnit

us-gaap:GoodwillWrittenOffRelatedToSaleOfBusinessUnit


None
Period End2020-06-302020-03-31
Value09972000.0
Percentage of GoodwillWrittenOffRelatedToSaleOfBusinessUnit0.0100.0

us-gaap:GoodwillWrittenOffRelatedToSaleOfBusinessUnit us-gaap:StatementBusinessSegments

sf:GlobalWealthManagement


None
Period End2020-06-302020-03-31
Value09972000.0
Percentage of GoodwillWrittenOffRelatedToSaleOfBusinessUnit0.0100.0

us-gaap:ImpairedFinancingReceivableAverageRecordedInvestment

us-gaap:ImpairedFinancingReceivableAverageRecordedInvestment


None
Period End2020-03-312019-03-312018-03-312017-03-312016-03-31
Value1424232719
Percentage of ImpairedFinancingReceivableAverageRecordedInvestment100.0100.0100.0100.0100.0

us-gaap:ImpairedFinancingReceivableAverageRecordedInvestment us-gaap:FinancialInstrument

sf:CommercialAndIndustrial


None
Period End2020-03-312019-03-312018-03-312017-03-312016-03-31
Value1223231712
Percentage of ImpairedFinancingReceivableAverageRecordedInvestment89.495.898.564.161.7

us-gaap:HomeEquity


None
Period End2020-03-312019-03-312018-03-312017-03-312016-03-31
Value0.1230.1840.1840.3230.323
Percentage of ImpairedFinancingReceivableAverageRecordedInvestment0.80.70.81.21.6

us-gaap:ResidentialMortgage


None
Period End2020-03-312019-03-312018-03-312017-03-31
Value1.4110.630.1710.177
Percentage of ImpairedFinancingReceivableAverageRecordedInvestment9.72.50.70.6

us-gaap:IncreaseDecreaseInBrokerageReceivables

us-gaap:IncreaseDecreaseInBrokerageReceivables


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-120.93676-148.003-93.95117772-130.546-26.0412785123-22.847-197.763-469.038476-24.285-130.355117-49.443-184.159351-200.414-0.354-90.397200154-166.514-190.59121017763-98.81474-15.378-6.638-74.85140-77.38813640-168.85855
Percentage of IncreaseDecreaseInBrokerageReceivables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInContractWithCustomerAsset

us-gaap:IncreaseDecreaseInContractWithCustomerAsset


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-435.883117-177.16849-37.298182-265.187250.5156
Percentage of IncreaseDecreaseInContractWithCustomerAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInContractWithCustomerLiability

us-gaap:IncreaseDecreaseInContractWithCustomerLiability


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value36205-280.473118151-200.229209-92.756-78.428-29.277
Percentage of IncreaseDecreaseInContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInDeposits

us-gaap:IncreaseDecreaseInDeposits


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-578.1121548495-64.415-148.816-813.7361360111561-82.312527833349173164220046635792521-197.126-520.10343237-101.13448-58.063-0.478221450210422146418286-49.025479152.322247120284-58.948
Percentage of IncreaseDecreaseInDeposits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInFinancialInstrumentsSoldNotYetPurchased

us-gaap:IncreaseDecreaseInFinancialInstrumentsSoldNotYetPurchased


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-70.4735.943-242.945-50.547-22.7723135-33.307-14.8541802943-48.881553350-59.1561539.421-54.40321-42.384-25.758-72.32-29.773233-43.04217-107.15217-49.372-40.4571423.574-6.754-19.275-75.944167-71.24717-116.36292
Percentage of IncreaseDecreaseInFinancialInstrumentsSoldNotYetPurchased100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherAccruedLiabilities

us-gaap:IncreaseDecreaseInOtherAccruedLiabilities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value158-234.4451719325-252.1994432139-238.12143159103-170.76677949.001-246.487-12.623-25.91165-288.0491061167-248.454695847-126.444-13.573568.882-119.349112.0467-151.611576646-116.432
Percentage of IncreaseDecreaseInOtherAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherLoans

us-gaap:IncreaseDecreaseInOtherLoans


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2940633957504930315.5992513112131132225118193710271324121227191210111625-16.161-8.314-7.922-14.029-17.014-10.651-10.768-7.943
Percentage of IncreaseDecreaseInOtherLoans100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherOperatingAssets

us-gaap:IncreaseDecreaseInOtherOperatingAssets


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-105.94951-4.712-7.949242433-84.794-15.8686936-40.836318723-14.1615133-28.371-47.388-4.8453245-57.28926-11.515-41.807-38.745-65.19866-29.836-22.8419.08235-51.9169.4831110-13.139-0.182-19.53
Percentage of IncreaseDecreaseInOtherOperatingAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInPayablesToBrokerDealers

us-gaap:IncreaseDecreaseInPayablesToBrokerDealers


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-39.4431067.111-38.0847321-196.846986318-143.45928-40.08374-19.293-47.2518.231-3.79248-7.45959-1.624-43.495-11.337-4.91751-19.403-13.7687.09130-20.76416-11.20213-8.518-83.39661-42.56-58.847106-21.182-12.995
Percentage of IncreaseDecreaseInPayablesToBrokerDealers100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInSecuritiesLendingPayable

us-gaap:IncreaseDecreaseInSecuritiesLendingPayable


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value-207.573-272.56-10.57224-32.866132-298.987901712090.001-42.565-17.862-106.4747725195-151.319282-56.694990.442-21.5930.682
Percentage of IncreaseDecreaseInSecuritiesLendingPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInTradingSecurities

us-gaap:IncreaseDecreaseInTradingSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-86.293-40.421-225.308-162.46754-2.641104-114.6919637781.8525.562131-223.746257279-59.232-131.8377624-1251.33-87.49336190-46.158118-182.03239-1788.72-4.734175100-38.807-77.5242117-201.98155-109.651131
Percentage of IncreaseDecreaseInTradingSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IndefiniteLivedIntangibleAssetsTranslationAndPurchaseAccountingAdjustments

us-gaap:IndefiniteLivedIntangibleAssetsTranslationAndPurchaseAccountingAdjustments


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312014-09-302013-12-312013-09-302013-06-302013-03-312011-12-312011-09-30
Value-0.077-2.095500.531-0.5567.7684.5486.114-0.157120.651-0.388270.07.3329.1690.0150.0290.00.03.2565.020.0
Percentage of IndefiniteLivedIntangibleAssetsTranslationAndPurchaseAccountingAdjustments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.00.0100.00.00.0100.0100.00.0

us-gaap:IndefiniteLivedIntangibleAssetsTranslationAndPurchaseAccountingAdjustments us-gaap:StatementBusinessSegments

sf:GlobalWealthManagement


None
Period End2020-06-302020-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312014-09-302014-06-302014-03-312011-12-312011-09-30
Value0.0-1.5324.66.380.0100.00.02.810.07.3112.2160.0100.00.01.670.1920.0
Percentage of IndefiniteLivedIntangibleAssetsTranslationAndPurchaseAccountingAdjustments-0.073.1101.1104.4-0.089.40.0-0.010.20.0100.034.024.20.065.80.00.00.03.80.0

sf:InstitutionalGroup


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312016-09-302016-06-302016-03-312013-12-312013-09-302013-06-302013-03-312011-12-312011-09-30
Value-0.077-0.563500.531-0.5567.768-0.052-0.266-0.1571.280.651-0.388240.00.021240.00.03.2564.8280.0
Percentage of IndefiniteLivedIntangibleAssetsTranslationAndPurchaseAccountingAdjustments100.026.9100.0100.0100.0100.0-1.1-4.4100.010.6100.0100.089.80.00.066.081.50.00.0100.096.20.0

us-gaap:InterestAndDividendIncomeOperating

us-gaap:InterestAndDividendIncomeOperating


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-06-302010-03-31
Value1281611671781871911841691541371261171081009074656248434342445246424039322930272725252421181414
Percentage of InterestAndDividendIncomeOperating100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestAndDividendIncomeSecuritiesAvailableForSale

us-gaap:InterestAndDividendIncomeSecuritiesAvailableForSale


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value414848546165666663545348464235272422151013141716181918171412121111
Percentage of InterestAndDividendIncomeSecuritiesAvailableForSale100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio

us-gaap:InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio


None
Period End2020-06-302020-03-312019-06-302019-03-31
Value79959593
Percentage of InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio100.0100.0100.0100.0

us-gaap:InterestExpenseDomesticDeposits

us-gaap:InterestExpenseDomesticDeposits


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value2.2779.569132429283225158.134.2374.771.8871.768-3.4323.6284.4772.661.8681.7832.0472.1152.4881.7431.951.7453.412.6362.8352.8943.0623.6064.281
Percentage of InterestExpenseDomesticDeposits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesShortTerm

us-gaap:InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesShortTerm


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value0.6822.3532.1371.1462.9111.6784.5944.2323.0953.2522.5341.2552.7971.7191.4891.8962.6350.759
Percentage of InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesShortTerm100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseOther

us-gaap:InterestExpenseOther


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value1.2424.5847.0629.5118.5829.2337.1327.7193.9532.6912.9453.824.2694.4463.5914.6063.2764.2862.6052.7182.2531.6131.6541.7291.7223.0563.7354.9032.5092.151-0.752.529
Percentage of InterestExpenseOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentBankingRevenue

us-gaap:InvestmentBankingRevenue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-06-302010-03-31
Value217179277198179161201168161176232181185126134144133100102118161125184120141132158921227875726770563764414134
Percentage of InvestmentBankingRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentBankingRevenue us-gaap:ProductOrService

sf:AdvisoryFees


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value977615510482104111758797
Percentage of InvestmentBankingRevenue45.142.456.052.746.264.855.244.854.055.4

sf:CapitalRaising


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value11910312193965690937478
Percentage of InvestmentBankingRevenue54.957.644.047.353.835.244.855.246.044.6

us-gaap:InvestmentBankingRevenue us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

sf:AdvisoryFees, sf:GlobalWealthManagement


None
Period End2020-06-302020-03-312018-12-312018-09-302018-06-30
Value0.00.0190.00.00.081
Percentage of InvestmentBankingRevenue0.00.00.00.00.1

sf:AdvisoryFees, sf:InstitutionalGroup


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value977615510482104111758697
Percentage of InvestmentBankingRevenue45.142.456.052.746.264.855.244.854.055.4

sf:CapitalRaising, sf:GlobalWealthManagement


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value8.016109.2789.855108.2237.9157.7227.9687.688
Percentage of InvestmentBankingRevenue3.75.73.35.05.95.13.94.64.94.4

sf:CapitalRaising, sf:InstitutionalGroup


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1119311284864882856671
Percentage of InvestmentBankingRevenue51.251.940.642.348.030.140.950.641.040.3

us-gaap:InvestmentBankingRevenue us-gaap:StatementBusinessSegments

sf:GlobalWealthManagement


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value8.016109.2789.855108.2237.9157.7228.0497.688
Percentage of InvestmentBankingRevenue3.75.83.35.05.95.13.94.65.04.4

sf:InstitutionalGroup


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value209169267188169153193161153168
Percentage of InvestmentBankingRevenue96.394.296.795.094.194.996.195.495.095.6

us-gaap:LaborAndRelatedExpense

us-gaap:LaborAndRelatedExpense


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-06-302010-03-31
Value547577566486466458448422442457620448453436420434460411398404409355370331355346353326321315262267239254228210229231216206
Percentage of LaborAndRelatedExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LeaseCost

us-gaap:LeaseCost


None
Period End2020-06-302020-03-312019-06-302019-03-31
Value24232221
Percentage of LeaseCost100.0100.0100.0100.0

us-gaap:NoncontrollingInterestDecreaseFromDeconsolidation us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterestDecreaseFromDeconsolidation

us-gaap:NoncontrollingInterest


None
Period End2020-06-302020-03-312019-06-302019-03-31
Value0-54999000.0672000.0232000.0
Percentage of NoncontrollingInterestDecreaseFromDeconsolidation0.0100.0100.0100.0

us-gaap:NoninterestExpense

us-gaap:NoninterestExpense


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value752797781670652632637597624630804613642596606614636576570569559490508457482468484447447418356358330341311295354315334482292272
Percentage of NoninterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NoninterestIncomeOtherOperatingIncome

us-gaap:NoninterestIncomeOtherOperatingIncome


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-06-302010-03-31
Value219.207178.74713126.9966.1279.0733.357129.5587.1988.752129.209177.23117181311-3.964.8038.7425.21913112019315.418138.3790.544.5566.2563.7571.945
Percentage of NoninterestIncomeOtherOperatingIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OccupancyNet

us-gaap:OccupancyNet


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-06-302010-03-31
Value66666458615857545357545757525262585761534844434142404241413434333230313029292624
Percentage of OccupancyNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeaseCost


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value232424222221212221
Percentage of OperatingLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value76-73.2271.86161625-8.189-3.138
Percentage of OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value76-73.2271.86161625-8.189-3.138-11.856-13.071
Percentage of OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.00.00.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-312012-09-302012-06-30
Value200000.0500000.000-200000.002900000.0000000000000200000.01900000.00400000.0700000.01200000.00100000.0200000.0500000.0800000.0400000.01300000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax100.0100.00.00.0100.00.0100.00.00.00.00.00.00.00.00.00.00.00.00.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value-0.2-0.30.40.60.81.51.61.51.20.50.20.7-0.6-0.9-1.1-1.4-1.5-1.36.9-0.9-1.01.21.41.51.61.71.92.12.32.32.42.83.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossTax

us-gaap:OtherComprehensiveIncomeLossTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value26-27.92.14.43.910-21.62.16.02.3-10.25.03.74.8-3.15.8
Percentage of OtherComprehensiveIncomeLossTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax us-gaap:DerivativeInstrumentRisk

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax

us-gaap:InterestRateContract


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-321000.0-2014000.0-205000.040000.01881000.0925000.01947000.0-603000.0-1402000.0-3818000.0
Percentage of OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value4023000.0-1706000.0-142000.0-477000.0-1957000.0-1826000.0-2687000.0-1523000.0712000.02706000.0-1018000.0183000.0-518000.01033000.011416000.04279000.0-3427000.0-4980000.0889000.0-289000.0713000.0-225000.047000.01108000.0360000.0626000.01497000.0473000.03428000.0
Percentage of OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value76-73.21.9-1.61625-8.189-3.138-11.856-13.071-7.5534.7363.773.777-9.1124.49411-1.028-3.872-0.611-1.8047.6760.155-3.8842.7042.862-0.37-8.16-35.412
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherCostAndExpenseOperating

us-gaap:OtherCostAndExpenseOperating


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-06-302010-03-31
Value61799978786884768172886185638875685964636151574749475544483633293027252769292721
Percentage of OtherCostAndExpenseOperating100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherNoncashIncomeExpense

us-gaap:OtherNoncashIncomeExpense


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value2.7395.4646.4926.391196.429-75.85383-0.633.871-0.66-0.266-1.112-0.999-0.197-3.615-3.3882.52413-7.29
Percentage of OtherNoncashIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForOriginationOfMortgageLoansHeldForSale

us-gaap:PaymentsForOriginationOfMortgageLoansHeldForSale


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value725474554591429272241339355404411403400349738825674419508378504464-837.991321289200206232399437-868.035486313356421289169179369374220166
Percentage of PaymentsForOriginationOfMortgageLoansHeldForSale100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromOtherLoansAndLeases

us-gaap:PaymentsForProceedsFromOtherLoansAndLeases


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value28259361613825819526840527413017263030126964078970432714218166190200110262954.18779967673452256590797.60427-5.366257.694
Percentage of PaymentsForProceedsFromOtherLoansAndLeases100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsOfDividendsPreferredStockAndPreferenceStock

us-gaap:PaymentsOfDividendsPreferredStockAndPreferenceStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value4.8444.8444.8434.8445.2882.3442.3442.3432.3442.3442.3442.3432.3442.3442.343
Percentage of PaymentsOfDividendsPreferredStockAndPreferenceStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1.077682.8431.4331.145273.4141.4181.86336138-10.443.72882
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireAvailableForSaleSecuritiesEquity

us-gaap:PaymentsToAcquireAvailableForSaleSecuritiesEquity


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value0.06010.812380.250.25218126112922333645943913247093975299910.2240.00.1991451381511618810783118533731110319226505111251351179
Percentage of PaymentsToAcquireAvailableForSaleSecuritiesEquity0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireProductiveAssets

us-gaap:PaymentsToAcquireProductiveAssets


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value5.9575341142872895.9727.7134.5867.0644.3838.7568.0146.8967.1564.8899.278.1592911204.248105.6766.431117.7728.3744.9315.0145.4434.4783.902276.388.063185.85105.6256.183
Percentage of PaymentsToAcquireProductiveAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PreferredStockDividendRatePercentage us-gaap:StatementClassOfStock

us-gaap:PreferredStockDividendRatePercentage

sf:NoncumulativePerpetualSeriesCPreferredStock


None
Period End2020-05-19
Value0.06125
Percentage of PreferredStockDividendRatePercentage100.0

us-gaap:PrincipalTransactionsRevenue

us-gaap:PrincipalTransactionsRevenue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-06-302010-03-31
Value166138106979610481838897978795116111117126120107958510048109125126118122111107971029111693767992122117
Percentage of PrincipalTransactionsRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromIssuanceOfDebt

us-gaap:ProceedsFromIssuanceOfDebt


None
Period End2020-03-312019-03-31
Value198218
Percentage of ProceedsFromIssuanceOfDebt100.0100.0

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value296385189624316934803053281291351295221982633573311312465672156296165805968238681761641246311925720671158873032
Percentage of ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312011-09-30
Value0.277155252001411143841041082301766164678770563743302923222820253328310.0162894.9648.650.2
Percentage of ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase

us-gaap:ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-255.6483-173.258-197.39295-93.41939-18.8516811278-88.60324-48.8196.812-55.2682612171-235.41386216-104.634-145.76643-17.658.3589551-31.81761-74.84711612710-101.042331040-48.033-15.916
Percentage of ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfAvailableForSaleSecurities

us-gaap:ProceedsFromSaleOfAvailableForSaleSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value2032880.04861550.0317550.00.00.00.0870.00.00.00.00.00.0895520.070162663.44.5171186392912.7
Percentage of ProceedsFromSaleOfAvailableForSaleSecurities100.0100.00.0100.0100.00.0100.0100.00.00.00.00.0100.00.00.00.00.00.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfMortgageLoansHeldForSale

us-gaap:ProceedsFromSaleOfMortgageLoansHeldForSale


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value642506526496426333293272405373363373459361731851568472496412510394-1941.553336267205175306413476-2678.561390337346404230143234389328201184
Percentage of ProceedsFromSaleOfMortgageLoansHeldForSale100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProvisionForLoanAndLeaseLosses

us-gaap:ProvisionForLoanAndLeaseLosses


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value13184.4120.9292.3532.2835.1226.9244.2772.0435.347.995.8566.1366.0163.5611.8244.2592.0733.7351.4161.8461.7821.8712.9681.91-2.5332.2971.521.721.7040.1610.596
Percentage of ProvisionForLoanAndLeaseLosses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProvisionForLoanAndLeaseLosses us-gaap:FinancialInstrument

sf:CommercialAndIndustrial


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value5.6919.9551.937-1.070.7430.2113.7785.0083.1391.9717.4276.3122.2663.6622.9472.6312.1162.9522.3343.1171.1931.4950.7482.3462.436
Percentage of ProvisionForLoanAndLeaseLosses43.252.543.9-115.231.69.273.872.373.496.5139.179.038.759.749.073.9116.069.3112.683.584.381.042.0125.482.1

sf:ConstructionAndLand


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312014-09-30
Value2.1223.6661.3460.8650.6780.4830.3380.60.1040.099-0.1330.009-0.2130.2050.0290.0590.0260.040.0310.0470.00.0
Percentage of ProvisionForLoanAndLeaseLosses16.119.330.593.128.821.26.68.72.44.8-2.50.1-3.63.30.51.71.40.91.51.30.00.0

sf:OtherLoans


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-30
Value-0.0370.049-0.0040.0380.040.0780.076-0.003-0.002-0.088-0.003
Percentage of ProvisionForLoanAndLeaseLosses-0.30.3-0.14.11.73.41.5-0.0-0.0-1.6-0.0

sf:SecuritiesBasedLoans


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value-1.108-0.7920.18-0.130.0840.2490.055-0.0050.034-0.194-1.224-0.2880.2070.2991.1910.1720.126-0.0020.1010.0610.1570.189
Percentage of ProvisionForLoanAndLeaseLosses-8.4-4.24.1-14.03.610.91.1-0.10.8-9.5-22.9-3.63.54.919.84.86.9-0.04.91.611.110.2

us-gaap:CommercialRealEstate


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value2.4823.810.6610.4250.0570.6430.0160.090.352-0.20.4930.0952.0170.2550.857-0.008-0.781.022-0.006-0.036-0.0260.038-0.0180.010.045
Percentage of ProvisionForLoanAndLeaseLosses18.820.115.045.72.428.20.31.38.2-9.89.21.234.44.214.2-0.2-42.824.0-0.3-1.0-1.82.1-1.00.51.5

us-gaap:HomeEquity


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value-0.040.0570.0060.0130.0490.0610.080.00.0640.001-0.11-0.013-0.003-0.0850.0860.0020.016-0.0230.037-0.02-0.0040.002-0.0070.143-0.01
Percentage of ProvisionForLoanAndLeaseLosses-0.30.30.11.42.12.71.60.01.50.0-2.1-0.2-0.1-1.41.40.10.9-0.51.8-0.5-0.30.1-0.47.6-0.3

us-gaap:ResidentialMortgage


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value4.0582.2331.7280.5190.4570.270.7351.1650.5490.3491.2951.5661.3791.530.7860.3460.210.0880.1190.1970.114
Percentage of ProvisionForLoanAndLeaseLosses30.811.839.255.919.411.814.316.812.817.124.319.623.524.913.19.711.52.15.75.38.1

us-gaap:ProvisionForLoanAndLeaseLosses us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:UnfundedLoanCommitment


None
Period End2020-06-30
Value6.0
Percentage of ProvisionForLoanAndLeaseLosses45.6

us-gaap:ProvisionForLoanLeaseAndOtherLosses

us-gaap:ProvisionForLoanLeaseAndOtherLosses


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value16195.170.9993.2271.6115.6217.3853.9372.6586.968.234.5366.2596.3914.8232.0084.5719.1851.1162.1932.22.8812.142.8051.8874.2232.9442.1571.2941.7720.0680.6620.9551.2570.40.845-0.2591.039-0.002-0.489-0.425
Percentage of ProvisionForLoanLeaseAndOtherLosses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProvisionForOtherCreditLosses

us-gaap:ProvisionForOtherCreditLosses


None
Period End2020-06-302019-06-30
Value192.353
Percentage of ProvisionForOtherCreditLosses100.0100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage us-gaap:AwardType, us-gaap:Vesting

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage

sf:PerformanceBasedRestrictedStockUnits, us-gaap:ShareBasedCompensationAwardTrancheOne


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value00.80000.8000.8
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage0.0100.00.00.00.0100.00.00.0100.0

sf:PerformanceBasedRestrictedStockUnits, us-gaap:ShareBasedCompensationAwardTrancheTwo


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value00.20000.2000.2
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage0.025.00.00.00.025.00.00.025.0

us-gaap:ShortTermLeaseCost

us-gaap:ShortTermLeaseCost


None
Period End2020-06-302020-03-312019-06-302019-03-31
Value1826000.0476000.0389000.0360000.0
Percentage of ShortTermLeaseCost100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueEmployeeStockPurchasePlan us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueEmployeeStockPurchasePlan

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302020-03-312019-06-302019-03-31
Value-4.416-105.5714-95.295
Percentage of StockIssuedDuringPeriodValueEmployeeStockPurchasePlan100.0100.0100.0100.0

us-gaap:RetainedEarnings


None
Period End2020-06-302020-03-312019-06-302019-03-31
Value-0.794-46.717-18.3190.027
Percentage of StockIssuedDuringPeriodValueEmployeeStockPurchasePlan18.044.3-129.9-0.0

us-gaap:TreasuryStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3.988544.8342.5662.925665.8092.7737.53112
Percentage of StockIssuedDuringPeriodValueEmployeeStockPurchasePlan-90.3-51.70.00.020.7-69.60.00.00.00.0

us-gaap:StockIssuedDuringPeriodValueOther us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueOther

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-140000.085000.0-9000.014000.039000.0-16000.047000.045000.0-41000.04000.0
Percentage of StockIssuedDuringPeriodValueOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RetainedEarnings


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1196000.0867000.0-491000.0-709000.0-323000.0-264000.0813000.058000.0285000.0787000.0
Percentage of StockIssuedDuringPeriodValueOther-854.31020.05455.6-5064.3-828.21650.01729.8128.9-695.119675.0

us-gaap:SubleaseIncome

us-gaap:SubleaseIncome


None
Period End2020-06-302020-03-312019-06-302019-03-31
Value996000.0908000.01213000.01272000.0
Percentage of SubleaseIncome100.0100.0100.0100.0

us-gaap:TreasuryStockAcquiredAverageCostPerShare

us-gaap:TreasuryStockAcquiredAverageCostPerShare


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302015-12-312015-09-302012-12-312012-09-302011-12-312011-09-30
Value-0.1249.74-0.1655.4356.3253.25-6.0753.9356.2856.780043.83030.5229.7-1.2645.17-0.229.34027.46
Percentage of TreasuryStockAcquiredAverageCostPerShare100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.00.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:TreasuryStockSharesAcquired

us-gaap:TreasuryStockSharesAcquired


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302015-12-312015-09-302012-12-312012-09-30
Value01100000.0600000.01000000.01300000.01000000.02300000.0300000.0800000.000300000.00600000.0100000.01200000.01500000.0100000.0100000.0
Percentage of TreasuryStockSharesAcquired0.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.00.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStockValueAcquiredCostMethod

us-gaap:TreasuryStockValueAcquiredCostMethod


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302012-12-312012-09-30
Value0.3563555715310716432.80.00.0130.0-0.038183.79151652.182.6
Percentage of TreasuryStockValueAcquiredCostMethod100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStockValueAcquiredCostMethod us-gaap:StatementEquityComponents

us-gaap:TreasuryStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.357563455715310716432.839
Percentage of TreasuryStockValueAcquiredCostMethod119.099.9100.099.9100.099.9100.0100.2100.1101.4

us-gaap:UnrealizedGainLossOnCashFlowHedgingInstruments us-gaap:StatementEquityComponents

us-gaap:UnrealizedGainLossOnCashFlowHedgingInstruments

us-gaap:AccumulatedOtherComprehensiveIncome


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value4023000.0-1706000.0-142000.0-477000.0-1957000.0-1826000.0-2687000.0-1523000.0712000.02706000.0
Percentage of UnrealizedGainLossOnCashFlowHedgingInstruments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:VariableLeaseCost

us-gaap:VariableLeaseCost


None
Period End2020-06-302020-03-312019-06-302019-03-31
Value27000.015000.028000.06000.0
Percentage of VariableLeaseCost100.0100.0100.0100.0

dei:EntityCommonStockSharesOutstanding us-gaap:StatementClassOfStock

dei:EntityCommonStockSharesOutstanding

sf:DepositorySharesEachRepresentingOneByThousandthInterestInShareOfSixPointOneTwoFivePercentageNonCumulativePreferredStockSeriesCPreferredStock


None
Period End2020-08-03
Value0.009
Percentage of EntityCommonStockSharesOutstanding100.0

us-gaap:CommonStock


None
Period End2020-08-032020-05-012020-02-142019-11-01
Value68686968
Percentage of EntityCommonStockSharesOutstanding761756.70.00.00.0

sf:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsFairValue

sf:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsFairValue


None
Period End2020-06-302020-03-312019-12-312019-09-302018-12-312014-03-312013-12-312013-09-302013-06-302012-06-302012-03-31
Value176259229226227146172193228296322
Percentage of AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:AvailableForSaleSecuritiesDebtMaturitiesAfterOneYearThroughThreeYearsAmortizedCost

sf:AvailableForSaleSecuritiesDebtMaturitiesAfterOneYearThroughThreeYearsAmortizedCost


None
Period End2020-06-302020-03-312019-12-312019-09-302018-12-312014-03-312013-12-312013-09-302013-06-302012-06-302012-03-31
Value174261229226234144169190224294318
Percentage of AvailableForSaleSecuritiesDebtMaturitiesAfterOneYearThroughThreeYearsAmortizedCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:AvailableForSaleSecuritiesDebtMaturitiesAfterThreeThroughFiveYearsFairValue

sf:AvailableForSaleSecuritiesDebtMaturitiesAfterThreeThroughFiveYearsFairValue


None
Period End2020-06-302020-03-312019-12-312019-09-302018-12-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-09-302011-06-30
Value302412429419397137123121117314515072
Percentage of AvailableForSaleSecuritiesDebtMaturitiesAfterThreeThroughFiveYearsFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:AvailableForSaleSecuritiesDebtMaturitiesAfterThreeYearThroughFiveYearsAmortizedCost

sf:AvailableForSaleSecuritiesDebtMaturitiesAfterThreeYearThroughFiveYearsAmortizedCost


None
Period End2020-06-302020-03-312019-12-312019-09-302018-12-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-09-302011-06-30
Value288422422413407137123123119314515373
Percentage of AvailableForSaleSecuritiesDebtMaturitiesAfterThreeYearThroughFiveYearsAmortizedCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:BrokerageClients

sf:BrokerageClients


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value98294674090778863783762772079882874782174584293189810771000423449332321319323327318333288325295329249291245241268212
Percentage of BrokerageClients100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:CashAndCashEquivalentsAndCashSegregatedForRegulatoryPurposes

sf:CashAndCashEquivalentsAndCashSegregatedForRegulatoryPurposes


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value1902157912739318188512069715585476787614678658986
Percentage of CashAndCashEquivalentsAndCashSegregatedForRegulatoryPurposes100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:CashEquivalentsMeasuredAtNetAssetValue

sf:CashEquivalentsMeasuredAtNetAssetValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value512625283120191817177716161535199.8221077
Percentage of CashEquivalentsMeasuredAtNetAssetValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:CashSegregatedForRegulatoryPurposes

sf:CashSegregatedForRegulatoryPurposes


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value111196131622173132211122690250.150.214730.16660372270.3210.1549
Percentage of CashSegregatedForRegulatoryPurposes100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:CollateralizedLoanPortfolio

sf:CollateralizedLoanPortfolio


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value0.9810.9770.9830.9830.9810.9850.9840.9860.9830.9740.9720.9680.9820.9840.9790.9760.9720.9710.9720.9640.9680.9720.9580.9630.9740.9690.9680.9650.9570.90.960.940.950.950.950.9870.980.98
Percentage of CollateralizedLoanPortfolio100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:FinancingReceivableRecordedInvestmentNonaccrualStatusRestructuredLoansAndNonperformingLoansWithNoAllowance

sf:FinancingReceivableRecordedInvestmentNonaccrualStatusRestructuredLoansAndNonperformingLoansWithNoAllowance


None
Period End2020-06-302020-03-31
Value1414
Percentage of FinancingReceivableRecordedInvestmentNonaccrualStatusRestructuredLoansAndNonperformingLoansWithNoAllowance100.0100.0

sf:FinancingReceivableRecordedInvestmentNonaccrualStatusRestructuredLoansAndNonperformingLoansWithNoAllowance us-gaap:FinancialInstrument

us-gaap:ResidentialMortgage


None
Period End2020-06-302020-03-31
Value1.411.411
Percentage of FinancingReceivableRecordedInvestmentNonaccrualStatusRestructuredLoansAndNonperformingLoansWithNoAllowance9.89.8

sf:FinancingReceivableTroubledDebtRestructuringAmount

sf:FinancingReceivableTroubledDebtRestructuringAmount


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value200000.0200000.0200000.0200000.07900000.09100000.09100000.09100000.09100000.09100000.09100000.08900000.09200000.09700000.09700000.09800000.0200000.0300000.0200000.0200000.0400000.01000000.0
Percentage of FinancingReceivableTroubledDebtRestructuringAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:InterestBearingAndTimeDepositOfOfficials dei:LegalEntity

sf:InterestBearingAndTimeDepositOfOfficials

sf:StifelNicolaus


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value7400000.05200000.06700000.08900000.08600000.07000000.06500000.03800000.0100000.0200000.0200000.0200000.0200000.0400000.0500000.0200000.0200000.0300000.0300000.0200000.0200000.0500000.0300000.0300000.0400000.0400000.0400000.0200000.0100000.0100000.0200000.0100000.0100000.0600000.0
Percentage of InterestBearingAndTimeDepositOfOfficials100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:InvestmentsAtFairValue

sf:InvestmentsAtFairValue


None
Period End2020-06-302020-03-312019-12-312019-09-302018-12-31
Value9555797467
Percentage of InvestmentsAtFairValue100.0100.0100.0100.0100.0

sf:LoansAndLeasesPayableReceivableLoansInProcess

sf:LoansAndLeasesPayableReceivableLoansInProcess


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value-2.92-53.953-27.7172.45-1.596-5.07527-0.856
Percentage of LoansAndLeasesPayableReceivableLoansInProcess100.0100.0100.0100.0100.0100.0100.0100.0

sf:LoansReceivableHeldForInvestmentNetNotPartOfDisposalGroupMortgage

sf:LoansReceivableHeldForInvestmentNetNotPartOfDisposalGroupMortgage


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value10448999496249101896487068517
Percentage of LoansReceivableHeldForInvestmentNetNotPartOfDisposalGroupMortgage100.0100.0100.0100.0100.0100.0100.0

sf:OffsettingAssets

sf:OffsettingAssets


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value624562521839745688817803721816652623631680641726673628478421723528500564608614614499544489312
Percentage of OffsettingAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:OffsettingAssetsAmountsNotOffset

sf:OffsettingAssetsAmountsNotOffset


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value-74.934-81.823-112.211-167.525-197.706-93.26-423.15-309.747-372.578389312220304361508455409331342
Percentage of OffsettingAssetsAmountsNotOffset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:OffsettingAssetsCollateralReceived

sf:OffsettingAssetsCollateralReceived


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value530476399650542586374466327412303375307284100258253285123411708517486564608614614499544489312
Percentage of OffsettingAssetsCollateralReceived100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:OffsettingAssetsGrossAmountsOfRecognizedAssets

sf:OffsettingAssetsGrossAmountsOfRecognizedAssets


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value624562521839745688817803721816652623631680641726673628478421723528500564608614614499544489312
Percentage of OffsettingAssetsGrossAmountsOfRecognizedAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:OffsettingAssetsNetAmount

sf:OffsettingAssetsNetAmount


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value193.8579.4214.5158.63919262115372719343211101112101510148.157
Percentage of OffsettingAssetsNetAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:OffsettingLiabilitiesAmountsNotOffset

sf:OffsettingLiabilitiesAmountsNotOffset


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value-74.934-81.823-112.211-167.525-197.706-93.26-423.15-309.747-372.578389312220304361508455409331342
Percentage of OffsettingLiabilitiesAmountsNotOffset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:OffsettingLiabilitiesCollateralPledged

sf:OffsettingLiabilitiesCollateralPledged


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value272729887914105689849484972138113324027422022920527214325415644726648175322290313435254191179
Percentage of OffsettingLiabilitiesCollateralPledged100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:OffsettingLiabilitiesGrossAmountsOfRecognizedLiabilities

sf:OffsettingLiabilitiesGrossAmountsOfRecognizedLiabilities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value349812999108112549919271186111577545346459759074967169148161115945026649175322290313435254191179
Percentage of OffsettingLiabilitiesGrossAmountsOfRecognizedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:OffsettingLiabilitiesNetAmount

sf:OffsettingLiabilitiesNetAmount


None
Period End2020-06-302020-03-312019-12-312019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value2.3831.2740.2320.3310.0019.72527215.0357.5363.767188.093119.243106.291142.733.5250.3220.414-8.403
Percentage of OffsettingLiabilitiesNetAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:OffsettingLiabilitiesNetAmountsPresentedInStatementOfFinancialCondition

sf:OffsettingLiabilitiesNetAmountsPresentedInStatementOfFinancialCondition


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-31
Value349812999108112549919271186111577545346459759074967169148161115945026649175322290313435191179
Percentage of OffsettingLiabilitiesNetAmountsPresentedInStatementOfFinancialCondition100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:OutstandingCommitmentsToOriginateLoans

sf:OutstandingCommitmentsToOriginateLoans


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value7738833846164212451462052102141602232132262053013022891301781792231221011291046667137196241251330169141
Percentage of OutstandingCommitmentsToOriginateLoans100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:PercentageOfAggregateDebitBalances dei:LegalEntity

sf:PercentageOfAggregateDebitBalances

sf:StifelNicolaus


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value0.370.2570.2120.1820.2020.2250.2090.20.1740.1610.1860.1850.1770.1680.1530.1730.1680.1930.2020.5060.4260.6830.6330.5230.5070.5310.5880.6320.6460.5290.7780.6370.5310.4520.2740.3070.346
Percentage of PercentageOfAggregateDebitBalances100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:PercentageOfLoansAndLeasesReceivableGrossCarryingAmount us-gaap:FinancialInstrument

sf:PercentageOfLoansAndLeasesReceivableGrossCarryingAmount

sf:CommercialAndIndustrial


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value0.3920.3760.3530.360.3680.3760.3850.3750.3610.3570.3480.3460.3320.3090.3030.3120.3380.370.3820.4590.4080.424
Percentage of PercentageOfLoansAndLeasesReceivableGrossCarryingAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:ConstructionAndLand


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value0.0450.0410.0410.0320.0250.020.0160.0140.0030.0030.0010.0030.0020.0020.0020.0020.0020.0010.0010.001
Percentage of PercentageOfLoansAndLeasesReceivableGrossCarryingAmount11.510.911.68.96.85.34.23.70.80.80.30.90.60.60.70.60.60.30.30.2

sf:OtherLoans


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value0.0060.0020.0030.0140.0160.0150.0150.0140.003
Percentage of PercentageOfLoansAndLeasesReceivableGrossCarryingAmount1.50.50.83.94.34.03.93.70.9

sf:SecuritiesBasedLoans


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value0.1620.1920.2150.2160.2160.2110.2080.220.2490.2530.2590.2670.2830.2920.2860.2910.3370.3840.4370.346
Percentage of PercentageOfLoansAndLeasesReceivableGrossCarryingAmount41.351.160.960.058.756.154.058.769.070.974.477.285.294.594.493.399.7103.8114.481.6

us-gaap:CommercialRealEstate


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value0.0380.0390.0440.0420.0410.0410.0370.0390.0170.0140.0170.0110.0120.0130.0140.0130.020.0240.0290.0080.0080.008
Percentage of PercentageOfLoansAndLeasesReceivableGrossCarryingAmount9.710.412.511.711.110.99.610.44.73.94.93.23.64.24.64.25.96.57.61.72.01.9

us-gaap:HomeEquity


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value0.0060.0060.0050.0050.0050.0050.0040.0030.0030.0020.0020.0020.0020.0030.0030.0030.0030.0040.0040.0050.0050.006
Percentage of PercentageOfLoansAndLeasesReceivableGrossCarryingAmount1.51.61.41.41.41.31.00.80.80.60.60.60.61.01.01.00.91.11.01.11.21.4

us-gaap:ResidentialMortgage


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value0.3510.3440.3390.3310.3290.3320.3350.3350.3640.3680.370.3660.3620.3740.3840.3610.2910.135
Percentage of PercentageOfLoansAndLeasesReceivableGrossCarryingAmount89.591.596.091.989.488.387.089.3100.8103.1106.3105.8109.0121.0126.7115.786.135.3

sf:PreferredStockLiquidationPreferencePerDepositaryShare us-gaap:StatementClassOfStock

sf:PreferredStockLiquidationPreferencePerDepositaryShare

sf:NoncumulativePerpetualSeriesCPreferredStock


None
Period End2020-05-19
Value25.0
Percentage of PreferredStockLiquidationPreferencePerDepositaryShare100.0

sf:SecuritiesBorrowedAmountNotOffsetAgainstCollateral

sf:SecuritiesBorrowedAmountNotOffsetAgainstCollateral


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value-37.123-27.484-52.319-139.759-60.974-64.52-57.328-47.974-77.5011177812299185291263244123182
Percentage of SecuritiesBorrowedAmountNotOffsetAgainstCollateral100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:SecuritiesBorrowedNetAmount

sf:SecuritiesBorrowedNetAmount


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value193.8178.294182.1273.577.462124.831.467171611232211101112101510147.648
Percentage of SecuritiesBorrowedNetAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:SecuritiesLoanedAmountNotOffsetAgainstCollateral

sf:SecuritiesLoanedAmountNotOffsetAgainstCollateral


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value-37.123-27.484-52.319-139.759-60.974-64.52-57.328-47.974-77.5011177812299185291263244123182
Percentage of SecuritiesLoanedAmountNotOffsetAgainstCollateral100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:SecuritiesLoanedNetAmount

sf:SecuritiesLoanedNetAmount


None
Period End2020-06-302020-03-312019-12-312019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value0.5780.0120.2320.3310.0019.72527215.0357.5363.767188.093119.243106.291142.733.5250.3220.3231.201
Percentage of SecuritiesLoanedNetAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:SecuritiesPurchasedUnderAgreementsToResellAmountsNotOffset

sf:SecuritiesPurchasedUnderAgreementsToResellAmountsNotOffset


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value-37.811-54.339-59.892-27.766-136.732-28.74-365.822-261.773-295.07727223398205176216192164207160
Percentage of SecuritiesPurchasedUnderAgreementsToResellAmountsNotOffset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:SecuritiesPurchasedUnderAgreementsToResellNetAmount

sf:SecuritiesPurchasedUnderAgreementsToResellNetAmount


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312015-03-312014-12-312013-12-31
Value0.1250.040.021.1180.2010.1734.3383.7464.6972.045120.020.1230.509
Percentage of SecuritiesPurchasedUnderAgreementsToResellNetAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:SecuritiesSoldUnderAgreementsToRepurchaseAmountNotOffset

sf:SecuritiesSoldUnderAgreementsToRepurchaseAmountNotOffset


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value375459271362836526129527223398205176216192164207160
Percentage of SecuritiesSoldUnderAgreementsToRepurchaseAmountNotOffset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:ShortTermBorrowingsExcludingSecuritiesSoldUnderAgreementsToRepurchase

sf:ShortTermBorrowingsExcludingSecuritiesSoldUnderAgreementsToRepurchase


None
Period End2020-03-312019-12-312019-09-302018-12-31
Value1980.150.15180
Percentage of ShortTermBorrowingsExcludingSecuritiesSoldUnderAgreementsToRepurchase100.0100.0100.0100.0

sf:TimeDepositMaturitiesLessThanOneHundredThousandNextRollingTwelveMonths

sf:TimeDepositMaturitiesLessThanOneHundredThousandNextRollingTwelveMonths


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value3.7194.9715.3055.3174.0364.974275.6170.4381.2131.6742.8773.984.8637.597101926375462820.1110.182
Percentage of TimeDepositMaturitiesLessThanOneHundredThousandNextRollingTwelveMonths100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:TimeDepositMaturitiesLessThanOneHundredThousandOverThreeRollingYears

sf:TimeDepositMaturitiesLessThanOneHundredThousandOverThreeRollingYears


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value13000.0213000.013000.0113000.021000.081000.0140000.0145000.0332000.0617000.0952000.01268000.01529000.02509000.03032000.03701000.0
Percentage of TimeDepositMaturitiesLessThanOneHundredThousandOverThreeRollingYears100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:TimeDepositMaturitiesLessThanOneHundredThousandRollingYearsOneToThree

sf:TimeDepositMaturitiesLessThanOneHundredThousandRollingYearsOneToThree


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value0.8556.2120.360.4370.690.48380.5440.1480.8550.9691.7151.9682.3562.6144.2095.6536.874101625340.1920.203
Percentage of TimeDepositMaturitiesLessThanOneHundredThousandRollingYearsOneToThree100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:TimeDepositMaturitiesOneHundredThousandOrMoreNextRollingTwelveMonths

sf:TimeDepositMaturitiesOneHundredThousandOrMoreNextRollingTwelveMonths


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value10617544170612261002151317400.6510.8771.3723.0313.9225.46411132333364061750.2490.245
Percentage of TimeDepositMaturitiesOneHundredThousandOrMoreNextRollingTwelveMonths100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:TimeDepositMaturitiesOneHundredThousandOrMoreOverThreeRollingYears

sf:TimeDepositMaturitiesOneHundredThousandOrMoreOverThreeRollingYears


None
Period End2020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value0.27.084101923260.3010.2970.2910.2840.7830.8731.0060.7230.7831.1692.2373.336
Percentage of TimeDepositMaturitiesOneHundredThousandOrMoreOverThreeRollingYears100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:TimeDepositMaturitiesOneHundredThousandOrMoreRollingOneToThreeYears

sf:TimeDepositMaturitiesOneHundredThousandOrMoreRollingOneToThreeYears


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value48396870881421571930.3380.9560.6471.1351.8291.9751.7333.8175.017.5213162941
Percentage of TimeDepositMaturitiesOneHundredThousandOrMoreRollingOneToThreeYears100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:UnusedLinesOfCreditToCommercialAndConsumerBorrowers us-gaap:FinancialInstrument

sf:UnusedLinesOfCreditToCommercialAndConsumerBorrowers

us-gaap:UnusedLinesOfCredit


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-12-132018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value18001400150014001100955919919769695745590598559558492510522549403476360424358478404321282306274244220284477119102
Percentage of UnusedLinesOfCreditToCommercialAndConsumerBorrowers100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:DraftsPayable

srt:DraftsPayable


None
Period End2020-06-302020-03-312019-12-312019-09-302018-12-31
Value909011984104
Percentage of DraftsPayable100.0100.0100.0100.0100.0

srt:PayablesToBrokerDealersAndClearingOrganizations

srt:PayablesToBrokerDealersAndClearingOrganizations


None
Period End2020-06-302020-03-312019-12-312019-09-302018-12-31
Value298545712613432
Percentage of PayablesToBrokerDealersAndClearingOrganizations100.0100.0100.0100.0100.0

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value107610271146101210181004344374360318308455370351400404362380349339411274302277265220285289256266259242237240257228214165170113
Percentage of AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccountsReceivableNet

us-gaap:AccountsReceivableNet


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value14813815114714213711614613411796
Percentage of AccountsReceivableNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccruedSalariesCurrentAndNoncurrent

us-gaap:AccruedSalariesCurrentAndNoncurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value375264507350267201460379330238493330244159295242176147363259228147359286249175337247215154187198143124204159147118234166
Percentage of AccruedSalariesCurrentAndNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdvancesFromFederalHomeLoanBanks

us-gaap:AdvancesFromFederalHomeLoanBanks


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value3232502502502502505401064760827745790790790500500865148
Percentage of AdvancesFromFederalHomeLoanBanks100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AlternativeInvestment

us-gaap:AlternativeInvestment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value623638414535363737101
Percentage of AlternativeInvestment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AlternativeInvestment us-gaap:InvestmentType

srt:PartnershipInterest


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value3.2893.243.0583.4583.9184.1533.9764.4054.5195.124
Percentage of AlternativeInvestment5.38.87.98.48.611.811.011.912.05.0

us-gaap:MoneyMarketFunds


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value51262528312019181777
Percentage of AlternativeInvestment82.872.266.167.969.658.654.450.547.775.9

us-gaap:MutualFund


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value5.6984.7417.8757.3157.3287.0189.122101011
Percentage of AlternativeInvestment9.212.920.217.716.119.925.128.426.811.5

us-gaap:PrivateEquityFunds


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value1.6972.2642.2882.5082.5653.4263.4613.3945.057.677
Percentage of AlternativeInvestment2.76.25.96.15.69.79.59.213.57.5

us-gaap:AssetBackedSecuritiesAtCarryingValue us-gaap:FairValueByLiabilityClass

us-gaap:AssetBackedSecuritiesAtCarryingValue

us-gaap:SecuritiesSoldNotYetPurchased


None
Period End2020-06-30
Value0.675
Percentage of AssetBackedSecuritiesAtCarryingValue100.0

us-gaap:AssetBackedSecuritiesAtCarryingValue us-gaap:FinancialInstrument

sf:SecuritiesOwned


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value7.8431228365.225625291148576
Percentage of AssetBackedSecuritiesAtCarryingValue1161.90.00.00.00.00.00.00.00.00.00.0

us-gaap:AssetsFairValueDisclosure

us-gaap:AssetsFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value41654380433447424171439744334621487750215114489446724596428544673719333026511723201225472633276229713067285324513409309326972464232221881914200318531651
Percentage of AssetsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel1


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value116108115150190120132148123108110146118926774182158225213256381439424375283321401777772498523558543310470326207
Percentage of AssetsFairValueDisclosure2.82.52.73.24.62.73.03.22.52.22.23.02.52.01.61.74.94.88.512.412.715.016.715.412.69.211.316.422.825.018.521.224.124.816.223.517.612.6

us-gaap:FairValueInputsLevel2


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value39274209415445173916422242464417468848444863466944724377407142403392302022971393162820072025216023992559229917972370204619921726150714181369134413511270
Percentage of AssetsFairValueDisclosure94.396.195.895.393.996.095.895.696.196.595.195.495.795.295.094.991.290.786.680.880.978.876.978.280.883.480.673.369.566.273.970.164.964.871.567.172.976.9

us-gaap:FairValueInputsLevel3


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value582625331718181827273737385656626058128116127158168177196224231252262274206214256227234188175173
Percentage of AssetsFairValueDisclosure1.40.60.60.70.40.40.40.40.60.60.70.80.81.21.31.41.61.74.86.86.36.26.46.46.67.38.110.37.78.97.78.711.010.412.39.49.510.5

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis


None
Period End2020-06-302020-03-312019-12-312019-09-302018-12-31
Value31623464325434503125
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleSecurities

us-gaap:AvailableForSaleSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-06-302011-03-312010-12-312009-12-31
Value317233663254344827033003307033493475371237733694345533773181314524662125162965978714511513152716461795175612312260172916251476132913471214107411901012578
Percentage of AvailableForSaleSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleSecurities us-gaap:FairValueByAssetClass

us-gaap:AssetBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value172316691592172515821713176417771798200121062159201320611867179313361085915447456772780728747761766153118602627272526272712
Percentage of AvailableForSaleSecurities54.349.648.950.058.557.157.553.151.753.955.858.458.361.058.757.054.251.156.267.757.953.251.547.745.442.443.612.55.33.51.61.82.01.92.20.02.61.2

us-gaap:FixedIncomeSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value5577276756747979479311177127012811211107297182482382865254131988188305337360421492498499526500480500470468405409238154
Percentage of AvailableForSaleSecurities17.621.620.719.629.531.530.335.136.634.532.129.028.124.425.926.326.425.519.613.423.921.022.323.625.627.428.440.623.328.929.533.935.434.733.40.022.315.3

us-gaap:USGovernmentCorporationsAndAgenciesSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value5.1465.655.0674.610.35.3685.2155.1655.0495.0264.9834.6864.5654.4194.1974.4462.6881.781.6981.7081.711.7121.611.7131.7181.721.0721.2261.2121.2171.1131.1151.1151.103
Percentage of AvailableForSaleSecurities0.20.20.20.10.00.20.20.20.10.10.10.10.10.10.10.10.10.10.10.30.20.10.10.10.10.10.10.10.10.10.10.10.10.1

us-gaap:USStatesAndPoliticalSubdivisions


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value2.46117243143496868696970717272727374747474737574747392901631681861571421198386846026
Percentage of AvailableForSaleSecurities0.10.50.70.91.61.62.22.12.01.91.91.92.12.12.32.33.03.54.611.29.45.24.94.94.45.25.213.37.510.89.79.79.06.27.20.05.62.6

us-gaap:AvailableForSaleSecurities us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:AssetBackedSecurities, us-gaap:FairValueInputsLevel2


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value17231669159217251582171317641777179820012106215920132061186717931336108591544745672873667568870370815311826
Percentage of AvailableForSaleSecurities54.349.648.950.058.557.157.553.151.753.955.858.458.361.058.757.054.251.156.267.757.950.248.644.241.839.240.312.55.31.6

us-gaap:FixedIncomeSecurities, us-gaap:FairValueInputsLevel2


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value5577276756747979479311177127012811211107297182482382865254131988188249286316348415414437167217
Percentage of AvailableForSaleSecurities17.621.620.719.629.531.530.335.136.634.532.129.028.124.425.926.326.425.519.613.423.917.218.920.721.223.123.635.57.413.4

us-gaap:USGovernmentCorporationsAndAgenciesSecurities, us-gaap:FairValueInputsLevel2


None
Period End2020-06-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value5.1465.655.0674.514.954.7984.6494.5344.5114.4674.4874.3664.223.8974.0442.5871.6791.6981.7081.711.7121.611.7131.7181.721.0721.2261.2121.113
Percentage of AvailableForSaleSecurities0.20.20.20.10.20.20.10.10.10.10.10.10.10.10.10.10.10.10.30.20.10.10.10.10.10.10.10.10.1

us-gaap:USStatesAndPoliticalSubdivisions, us-gaap:FairValueInputsLevel2


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value2.4611724314349686869697071727272737474747473757474738684848666
Percentage of AvailableForSaleSecurities0.10.50.70.91.61.62.22.12.01.91.91.92.12.12.32.33.03.54.611.29.45.24.94.94.44.84.86.93.84.1

us-gaap:AvailableForSaleSecurities us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument

sf:NonAgencyMortgageBackedSecurities, us-gaap:FairValueInputsLevel2, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value6.9238.6449.758101.091.1481.2191.2691.4061.568
Percentage of AvailableForSaleSecurities0.20.30.30.30.00.00.00.00.00.0

us-gaap:AgencySecurities, us-gaap:FairValueInputsLevel2, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value770829837887200215230250261305
Percentage of AvailableForSaleSecurities24.324.625.725.77.47.27.57.57.58.1

us-gaap:CommercialMortgageBackedSecurities, us-gaap:FairValueInputsLevel2, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value105108109114777169686972
Percentage of AvailableForSaleSecurities3.33.23.43.32.92.42.32.12.01.9

us-gaap:AvailableForSaleSecurities us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument

sf:NonAgencyMortgageBackedSecurities, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value6.9238.6449.758101.091.1481.2191.2691.4061.568
Percentage of AvailableForSaleSecurities0.20.30.30.30.00.00.00.00.00.0

us-gaap:AgencySecurities, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value770829837887200215230250261305
Percentage of AvailableForSaleSecurities24.324.625.725.77.47.27.57.57.58.1

us-gaap:CommercialMortgageBackedSecurities, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value105108109114777169686972
Percentage of AvailableForSaleSecurities3.33.23.43.32.92.42.32.12.01.9

us-gaap:AvailableForSaleSecurities us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel2


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value3172336632543448270230033070334934743712377236943455337731813144246621251629659787135114181430151516531608109018191271
Percentage of AvailableForSaleSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.093.193.793.792.092.191.688.580.578.2

us-gaap:AvailableForSaleSecurities us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value3172336632543448270330033070334934753712377336943455337731813145246621251629659787145115131527164617951756123122601625
Percentage of AvailableForSaleSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value3172336632543448270330033070334934753712377336943455337731813145246621251629659787145115131527164617951756123122601625
Percentage of AvailableForSaleSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleSecurities us-gaap:FinancialInstrument

us-gaap:AssetBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value1723166915921725158217131764177717982106
Percentage of AvailableForSaleSecurities54.349.648.950.058.557.157.553.151.755.8

us-gaap:FixedIncomeSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value557727675674797947931117712701211
Percentage of AvailableForSaleSecurities17.621.620.719.629.531.530.335.136.632.1

us-gaap:USGovernmentAgenciesDebtSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value5.1465.655.0674.610.35.3685.2155.1655.0494.983
Percentage of AvailableForSaleSecurities0.20.20.20.10.00.20.20.20.10.1

us-gaap:USStatesAndPoliticalSubdivisions


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value2.461172431434968686970
Percentage of AvailableForSaleSecurities0.10.50.70.91.61.62.22.12.01.9

us-gaap:AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax

us-gaap:AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value48271514113.0270.7775.6888.9751616
Percentage of AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument

sf:NonAgencyMortgageBackedSecurities, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302018-06-30
Value0.0930.1180.050.070.023
Percentage of AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax0.20.40.30.50.3

us-gaap:AgencySecurities, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value20223.072.6040.7240.3250.0880.0290.030.102
Percentage of AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax42.381.519.818.26.210.711.30.50.30.6

us-gaap:CommercialMortgageBackedSecurities, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value3.1060.5240.2690.6270.2660.0040.0040.0080.0120.028
Percentage of AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax6.41.91.74.42.30.10.50.10.10.2

us-gaap:AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax us-gaap:FinancialInstrument

us-gaap:AssetBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value3.6270.8360.6790.6010.520.5610.6723.1097.27712
Percentage of AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax7.53.04.44.24.418.586.554.781.176.5

us-gaap:FixedIncomeSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302017-12-31
Value213.4611109.9822.0072.5421.6323.832
Percentage of AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax43.412.572.871.385.266.344.718.222.8

us-gaap:USGovernmentAgenciesDebtSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-30
Value0.1090.1160.0390.0480.0010.0230.0130.001
Percentage of AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax0.20.40.30.30.00.81.70.0

us-gaap:USStatesAndPoliticalSubdivisions


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.0540.0630.0990.1440.2280.107
Percentage of AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax0.10.20.61.01.93.5

us-gaap:AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax

us-gaap:AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value38125141611235549473820
Percentage of AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument

sf:NonAgencyMortgageBackedSecurities, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.0910.0940.0230.0270.020.0280.0260.012
Percentage of AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax0.20.10.20.20.20.10.00.0

us-gaap:AgencySecurities, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value0.190.1555.8517.0511.4341.8673.9725.3414.9622.981
Percentage of AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax0.50.139.643.712.97.87.110.910.414.3

us-gaap:CommercialMortgageBackedSecurities, us-gaap:MortgageBackedSecurities


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value0.4820.7140.1810.72.7444.75.8835.5113.088
Percentage of AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax0.44.81.16.311.58.412.011.614.9

us-gaap:AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax us-gaap:FinancialInstrument

us-gaap:AssetBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value381088.2058.778.20713167.814.8554.897
Percentage of AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax99.285.855.554.374.157.828.815.910.223.6

us-gaap:FixedIncomeSecurities


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value0.04170.1050.7165.4162625285.652
Percentage of AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax0.113.60.76.522.747.952.358.927.2

us-gaap:AvailableForSaleSecuritiesAmortizedCost

us-gaap:AvailableForSaleSecuritiesAmortizedCost


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-06-302010-12-31
Value31623464325434502702302431253393351437343777368334513380319031322461213816416637881446152015331645179717621236230017131601144613121329120410561005
Percentage of AvailableForSaleSecuritiesAmortizedCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesAmortizedCost us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument

sf:NonAgencyMortgageBackedSecurities, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value6.9218.629.731101.111.1761.2451.2811.3831.568
Percentage of AvailableForSaleSecuritiesAmortizedCost0.20.20.30.30.00.00.00.00.00.0

us-gaap:AgencySecurities, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value750807840892201216234256266308
Percentage of AvailableForSaleSecuritiesAmortizedCost23.723.325.825.97.47.27.57.57.68.2

us-gaap:CommercialMortgageBackedSecurities, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value102108109114787474747475
Percentage of AvailableForSaleSecuritiesAmortizedCost3.23.13.43.32.92.52.42.22.12.0

us-gaap:AvailableForSaleSecuritiesAmortizedCost us-gaap:FinancialInstrument

us-gaap:AssetBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value1758177616001733159017261779178217952098
Percentage of AvailableForSaleSecuritiesAmortizedCost55.651.349.250.258.857.156.952.551.155.6

us-gaap:FixedIncomeSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value536741664664788950958120012971213
Percentage of AvailableForSaleSecuritiesAmortizedCost17.021.420.419.329.231.430.735.436.932.1

us-gaap:USGovernmentAgenciesDebtSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value5.0375.5345.0284.5650.2995.3675.2375.2265.1065.022
Percentage of AvailableForSaleSecuritiesAmortizedCost0.20.20.20.10.00.20.20.20.10.1

us-gaap:USStatesAndPoliticalSubdivisions


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value2.407172431434972737374
Percentage of AvailableForSaleSecuritiesAmortizedCost0.10.50.70.91.61.62.32.22.12.0

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-09-302011-06-30
Value16162151162417521351204226261764168815641284856832109012828108041277133238727569188184067080055615656233181392700.251190
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue us-gaap:FairValueByAssetClass

sf:NonAgencyMortgageBackedSecurities


None
Period End2020-03-312011-09-302011-06-30
Value0.8171315
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue0.05375.38.0

us-gaap:AgencySecurities


None
Period End2020-03-312014-12-312013-12-312013-09-302013-06-302013-03-312012-12-312012-03-312011-09-302011-06-30
Value34849083116337310616320242
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue1.69.611.314.974.459.933.30.080658.222.4

us-gaap:AssetBackedSecurities


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value15629459419931273134851734891175222482612535177937362741524436104973834681338026141417151511
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue72.658.253.773.562.451.429.320.75.913.62.622.720.431.264.362.155.370.955.364.269.359.157.258.524.15.24.34.510.56.40.06265.76.0

us-gaap:CommercialMortgageBackedSecurities


None
Period End2020-03-312014-12-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value6114464015303943834618748
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue2.91.75.97.21.04.912.531.130.90.074584.125.7

us-gaap:FixedIncomeSecurities


None
Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value49210116160987695610676903853964255661751.4931523925341149810274120179183818349136
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue22.95.812.029.949.656.768.253.845.047.639.044.221.60.21.218.06.512.716.511.212.211.115.032.211.713.126.235.150.7

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument

sf:NonAgencyMortgageBackedSecurities, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302019-12-312019-09-302019-06-302018-12-312018-09-30
Value0.7880.9661.0271.091.2141.261
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue0.00.10.10.10.00.1

us-gaap:AgencySecurities, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1857066711883204228239
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue1.135.138.18.84.17.813.014.2

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue us-gaap:FinancialInstrument

us-gaap:AssetBackedSecurities


None
Period End2020-06-30
Value1569
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue97.1

us-gaap:FixedIncomeSecurities


None
Period End2020-06-30
Value27
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue1.7

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-09-302011-06-30
Value111016749131267854138217211129121310878003956368891034727667114611472051443074734692556864801493520241982410.251181
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue us-gaap:FairValueByAssetClass

us-gaap:AgencySecurities


None
Period End2020-03-312014-12-312013-12-312013-09-302013-06-302013-03-312012-12-312012-03-312011-09-302011-06-30
Value23388983116337310616320242
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue1.48.113.017.377.971.844.00.080658.223.5

us-gaap:AssetBackedSecurities


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value10963497027761273134851734891175222482612414527296001376618438931419343613380131417151511
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue65.538.255.490.992.178.445.828.88.521.95.727.925.333.267.963.652.366.945.660.082.267.176.163.627.95.42.515.07.20.06265.76.3

us-gaap:CommercialMortgageBackedSecurities


None
Period End2020-03-312014-12-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value614.893464015121826824618748
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue3.71.06.88.41.12.57.627.134.40.074584.126.9

us-gaap:FixedIncomeSecurities


None
Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value49244271045657758855042133964255661751.4931523925343433374.97880134143414924108
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue29.43.53.27.550.164.081.463.054.162.247.854.824.10.21.420.912.224.111.37.28.12.011.728.19.68.020.524.844.9

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument

us-gaap:AgencySecurities, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value5.933458485440.15164083
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue0.550.338.35.30.00.93.66.9

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue us-gaap:FinancialInstrument

us-gaap:AssetBackedSecurities


None
Period End2020-06-30
Value1076
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue97.0

us-gaap:FixedIncomeSecurities


None
Period End2020-06-30
Value27
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue2.5

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-09-302011-06-30
Value5064777114844976599056344744774834611952012478213713018518113038340837141511376711037741290.08.396
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue us-gaap:FairValueByAssetClass

sf:NonAgencyMortgageBackedSecurities


None
Period End2020-03-312011-09-302011-06-30
Value0.8177.3528.396
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue0.20.0100.0

us-gaap:AgencySecurities


None
Period End2020-03-312014-12-312013-12-312013-09-302011-09-302011-06-30
Value10461.3351.350.00.0
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue2.211.41.21.80.00.0

us-gaap:AssetBackedSecurities


None
Period End2020-03-312019-12-312019-09-302019-06-302016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302013-03-312012-12-312011-09-302011-06-30
Value46659623921711646313613786258221182189314613140.00.0
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue97.783.849.443.713.847.148.973.575.565.967.554.249.145.628.061.213.218.60.00.0

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument

sf:NonAgencyMortgageBackedSecurities, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302019-12-312019-09-30
Value0.7880.9661.027
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue0.20.10.2

us-gaap:AgencySecurities, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value121121827383188188156
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue2.515.737.714.812.720.829.632.9

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue us-gaap:FinancialInstrument

us-gaap:AssetBackedSecurities


None
Period End2020-06-30
Value493
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue97.4

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost


None
Period End2020-06-302020-03-312019-12-312019-09-302018-12-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value488478409412469384407405453295.6265.65.5831010
Percentage of AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value484453411415523562458696790894978853759773895679359297271157115384379428481383406375153306.2496.2276.2071111
Percentage of AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue us-gaap:FairValueByAssetClass

us-gaap:AssetBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value41137532530628023512724421836241741942457969747429625020911983261254304360
Percentage of AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue85.082.979.173.653.641.927.835.127.740.542.649.155.975.077.969.982.584.377.175.872.067.967.171.074.8

us-gaap:FixedIncomeSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value69745577225303307427552513486361262121126128453454302942424147
Percentage of AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue14.316.413.618.643.053.967.061.469.957.449.842.434.515.714.118.912.511.820.019.125.811.111.19.710.0

us-gaap:USStatesAndPoliticalSubdivisions


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value2.4612.4635.8755.85412181818181818161616161717117.3337.3941.6711.6961.6551.639
Percentage of AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue0.50.51.41.42.43.24.02.62.32.11.91.92.22.21.92.64.83.72.74.71.40.40.40.4

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument

us-gaap:AgencySecurities, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.7530.78624265.2815.6075.826.1940.966
Percentage of AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue0.20.25.96.41.01.01.30.90.1

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value47967265964657664862571964758654555357168367868160850725750129151169209260
Percentage of AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue us-gaap:FairValueByAssetClass

us-gaap:FixedIncomeSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value44362861459757164362071464358254255056768067567860650625649128149163198251
Percentage of AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue92.493.593.192.399.299.399.299.399.499.399.499.599.399.599.599.699.799.899.697.999.299.196.394.796.5

us-gaap:USGovernmentCorporationsAndAgenciesSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value3.2313.8893.3183.0133.4583.6813.5083.9593.8543.2612.693.7413.2442.8463.0181.6070.8270.9970.9780.9781.2351.1581.3861.391
Percentage of AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue0.70.60.50.50.50.60.50.60.70.60.50.70.50.40.40.30.20.41.90.80.80.70.70.5

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument

sf:NonAgencyMortgageBackedSecurities, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-30
Value6.1357.8278.7929.483
Percentage of AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue1.31.21.31.5

us-gaap:AgencySecurities, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.5610.6760.8190.954.3471.3171.461.528
Percentage of AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue0.10.10.10.10.80.20.20.2

us-gaap:CommercialMortgageBackedSecurities, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-30
Value263132360.06
Percentage of AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue5.54.74.95.60.0

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost


None
Period End2020-06-302020-03-312019-12-312019-09-302018-12-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value21642275218623962008518502314273234165119127929270
Percentage of AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value2161221321762384160017901980189619612044206521241981189615831761149713191091442511802831769773510492306266236169124131969672
Percentage of AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue us-gaap:FairValueByAssetClass

us-gaap:AssetBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value13121293126714181301147816361533157916381689173915891481117013181040835706327373511520414379
Percentage of AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue60.758.458.259.581.382.682.680.880.580.181.881.980.278.173.974.969.563.364.774.272.963.762.653.949.1

us-gaap:USStatesAndPoliticalSubdivisions


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value141825303049505050515455555456576366667273727273
Percentage of AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue0.70.81.11.91.72.52.62.62.52.52.62.82.93.53.23.84.86.115.114.19.28.79.49.5

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument

sf:NonAgencyMortgageBackedSecurities, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.7880.8170.9661.0281.091.1481.2191.2691.406
Percentage of AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue0.00.00.00.00.10.10.10.10.1

us-gaap:AgencySecurities, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value769827812860189208223243260
Percentage of AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue35.637.437.336.111.811.611.312.813.3

us-gaap:CommercialMortgageBackedSecurities, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value787677787771696869
Percentage of AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue3.73.53.53.34.94.03.53.63.5

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost


None
Period End2020-06-302020-03-312019-12-312019-09-302018-12-31
Value46266.8611.8995.872
Percentage of AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value47266.8711.8972.5932.5085.85537761861841621422323231.1190.9539.7249.81631113132120130
Percentage of AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue us-gaap:FairValueByAssetClass

us-gaap:FixedIncomeSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value45255.1220.30.3990.5984.24135751841821601412222229.0239.08630112131119121
Percentage of AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue95.993.474.515.815.423.872.494.598.199.298.998.599.394.293.193.992.892.697.799.699.799.792.9

us-gaap:USGovernmentCorporationsAndAgenciesSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value1.9151.7611.7491.5970.31.911.5341.6571.091.1721.7221.9960.8241.1751.3511.4281.0810.9530.7010.730.7320.4770.4520.3270.327
Percentage of AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue4.06.525.584.211.676.226.24.41.40.60.91.20.64.95.66.196.6100.07.27.42.30.40.30.30.2

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument

us-gaap:AgencySecurities, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-06-30
Value0.0230.0331.842
Percentage of AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue0.00.171.0

us-gaap:AvailableForSaleSecuritiesDebtSecurities

us-gaap:AvailableForSaleSecuritiesDebtSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value31723366325434482703300330703349347537123773369434553377318131452466212516296597871451151315271646
Percentage of AvailableForSaleSecuritiesDebtSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:FairValueByAssetClass

us-gaap:AssetBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value172316691592172515821713176417771798200121062159201320611867179313361085915447456772780728747
Percentage of AvailableForSaleSecuritiesDebtSecurities54.349.648.950.058.557.157.553.151.753.955.858.458.361.058.757.054.251.156.267.757.953.251.547.745.4

us-gaap:FixedIncomeSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value5577276756747979479311177127012811211107297182482382865254131988188305337360421
Percentage of AvailableForSaleSecuritiesDebtSecurities17.621.620.719.629.531.530.335.136.634.532.129.028.124.425.926.326.425.519.613.423.921.022.323.625.6

us-gaap:USGovernmentCorporationsAndAgenciesSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value5.1465.655.0674.610.35.3685.2155.1655.0495.0264.9834.6864.5654.4194.1974.4462.6881.781.6981.7081.711.7121.611.7131.718
Percentage of AvailableForSaleSecuritiesDebtSecurities0.20.20.20.10.00.20.20.20.10.10.10.10.10.10.10.10.10.10.10.30.20.10.10.10.1

us-gaap:USStatesAndPoliticalSubdivisions


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value2.461172431434968686969707172727273747474747375747473
Percentage of AvailableForSaleSecuritiesDebtSecurities0.10.50.70.91.61.62.22.12.01.91.91.92.12.12.32.33.03.54.611.29.45.24.94.94.4

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument

sf:NonAgencyMortgageBackedSecurities, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value6.9238.6449.758101.091.1481.2191.2691.406
Percentage of AvailableForSaleSecuritiesDebtSecurities0.20.30.30.30.00.00.00.00.0

us-gaap:AgencySecurities, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value770829837887200215230250261
Percentage of AvailableForSaleSecuritiesDebtSecurities24.324.625.725.77.47.27.57.57.5

us-gaap:CommercialMortgageBackedSecurities, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1051081091147771696869
Percentage of AvailableForSaleSecuritiesDebtSecurities3.33.23.43.32.92.42.32.12.0

us-gaap:Capital dei:LegalEntity

us-gaap:Capital

sf:StifelBank


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value2101781641581511438582118511611124107010289809917816615874873954234274434254013573293112832562342241890.1511140.131224
Percentage of Capital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:StifelBankAndTrust


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value11881150109011271161119712621223
Percentage of Capital563.9646.0664.7710.5767.9832.91483.11487.8

us-gaap:Capital us-gaap:ConsolidatedEntities

srt:ParentCompany


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value276324062441241624502403224722322051
Percentage of Capital1311.11351.71488.71523.41619.81672.02641.02715.0173.0

us-gaap:CapitalRequiredForCapitalAdequacy dei:LegalEntity

us-gaap:CapitalRequiredForCapitalAdequacy

sf:StifelBank


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value83867266646150436155975895595234834714323643142681991972082612442382161971911741711581461400.1190810.08502
Percentage of CapitalRequiredForCapitalAdequacy100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:StifelBankAndTrust


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value683708658631639643647642
Percentage of CapitalRequiredForCapitalAdequacy815.4818.5903.5948.1995.91041.61285.01465.4

us-gaap:CapitalRequiredForCapitalAdequacy us-gaap:ConsolidatedEntities

srt:ParentCompany


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value10811086103810001021977925927859
Percentage of CapitalRequiredForCapitalAdequacy1291.31255.91426.01503.61591.41581.61838.42114.6139.6

us-gaap:CapitalRequiredForCapitalAdequacyToRiskWeightedAssets dei:LegalEntity

us-gaap:CapitalRequiredForCapitalAdequacyToRiskWeightedAssets

sf:StifelBank


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value8.00.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.08
Percentage of CapitalRequiredForCapitalAdequacyToRiskWeightedAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:StifelBankAndTrust


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value8.00.080.080.080.080.080.080.08
Percentage of CapitalRequiredForCapitalAdequacyToRiskWeightedAssets100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CapitalRequiredForCapitalAdequacyToRiskWeightedAssets us-gaap:ConsolidatedEntities

srt:ParentCompany


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value8.00.080.080.080.080.080.080.080.08
Percentage of CapitalRequiredForCapitalAdequacyToRiskWeightedAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CapitalRequiredToBeWellCapitalized dei:LegalEntity

us-gaap:CapitalRequiredToBeWellCapitalized

sf:StifelBank


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value1041089183807762547697467366996546035895404563933352492462603273062982712462392182141981831750.1488510.106276
Percentage of CapitalRequiredToBeWellCapitalized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:StifelBankAndTrust


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value853885822788799804808803
Percentage of CapitalRequiredToBeWellCapitalized815.4818.5903.5948.1995.91041.61285.01465.4

us-gaap:CapitalRequiredToBeWellCapitalized us-gaap:ConsolidatedEntities

srt:ParentCompany


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value135213581298125112771221115711591074
Percentage of CapitalRequiredToBeWellCapitalized1291.31255.91426.01503.61591.41581.61838.42114.5139.6

us-gaap:CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets dei:LegalEntity

us-gaap:CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets

sf:StifelBank


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value10.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.1
Percentage of CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

sf:StifelBankAndTrust


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value10.00.10.10.10.10.10.10.1
Percentage of CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets us-gaap:ConsolidatedEntities

srt:ParentCompany


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value10.00.10.10.10.10.10.10.10.1
Percentage of CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashAndCashEquivalentsFairValueDisclosure

us-gaap:CashAndCashEquivalentsFairValueDisclosure


None
Period End2020-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value135691908985122736735781381521717226624814167.99215
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashAndCashEquivalentsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsNonrecurring


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value1740135611168407657571916675454432618572661642877655354566719516552318566461352489638510214401331166379
Percentage of CashAndCashEquivalentsFairValueDisclosure0.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0788.6570.2617.9371.8461.4626.0521.41375.5816.8367.6140.1233.7456.4624.8611.9

us-gaap:CashAndCashEquivalentsFairValueDisclosure us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value1791138211428687977771936694472450696588678658912675364577811607552403689535420525716649366403
Percentage of CashAndCashEquivalentsFairValueDisclosure0.0102.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0888.6670.2617.9471.8561.4726.0621.41475.5916.8467.6240.1556.4

us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value1791138211428687977771936694472450696588678658912675364577811607552403689535420525716649366403
Percentage of CashAndCashEquivalentsFairValueDisclosure0.0102.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0888.6670.2617.9471.8561.4726.0621.41475.5916.8467.6240.1556.4

us-gaap:CashAndCashEquivalentsFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsNonrecurring


None
Period End2020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value174011168407657571916675454432618572661642877655354566719516552318566461352489638510214401331166379
Percentage of CashAndCashEquivalentsFairValueDisclosure0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0788.6570.2617.9371.8461.4626.0521.41375.5816.8367.6140.1233.7456.4624.8611.9

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value19021579127393181885120697155854767879861038
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashSegregatedUnderOtherRegulations

us-gaap:CashSegregatedUnderOtherRegulations


None
Period End2020-03-312015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1960.127490.0390.0380.0370.0350.0330.0320.0321280.0280.0270.0260.0260.0260.0255.0246.0230.019
Percentage of CashSegregatedUnderOtherRegulations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashSegregatedUnderOtherRegulations us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsNonrecurring


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value111196131622173132211122690250.150.214730.16660372270.3210.1549
Percentage of CashSegregatedUnderOtherRegulations0.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0100.0

us-gaap:CashSegregatedUnderOtherRegulations us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value111196131622173132211122690250.150.214730.16660372270.3210.1549
Percentage of CashSegregatedUnderOtherRegulations0.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0100.0

us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value111196131622173132211122690250.150.214730.16660372270.3210.1549
Percentage of CashSegregatedUnderOtherRegulations0.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0100.0

us-gaap:CashSegregatedUnderOtherRegulations us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsNonrecurring


None
Period End2020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value111131622173132211122690250.150.214730.16660372270.3210.1549
Percentage of CashSegregatedUnderOtherRegulations0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0100.0

us-gaap:CommissionsPayableToBrokerDealersAndClearingOrganizations

us-gaap:CommissionsPayableToBrokerDealersAndClearingOrganizations


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value76717820573012201661827643020163648339231403.32.4439.8393.111137.41123149.2468.6649.2493.5453.9844.5227.628.463
Percentage of CommissionsPayableToBrokerDealersAndClearingOrganizations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CustomerSecuritiesForWhichEntityHasRightToSellOrRepledgeFairValue

us-gaap:CustomerSecuritiesForWhichEntityHasRightToSellOrRepledgeFairValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-312010-06-30
Value180022002300270025002500240027002600260024002300240024002500260024002300240011001400120012001240130013001200110012001200965979110011001000927864950
Percentage of CustomerSecuritiesForWhichEntityHasRightToSellOrRepledgeFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CustomerSecuritiesForWhichEntityHasRightToSellOrRepledgeFairValueOfSecuritiesSoldOrRepledged

us-gaap:CustomerSecuritiesForWhichEntityHasRightToSellOrRepledgeFairValueOfSecuritiesSoldOrRepledged


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-06-302010-12-312010-06-30
Value2194753915647624665354955143462331552442192682613172902781063422553914328924626325516010814078153142806710942
Percentage of CustomerSecuritiesForWhichEntityHasRightToSellOrRepledgeFairValueOfSecuritiesSoldOrRepledged100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentCarryingAmount

us-gaap:DebtInstrumentCarryingAmount


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value14251025102510251025102510251025102510251025800800800800800750750750
Percentage of DebtInstrumentCarryingAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentCarryingAmount us-gaap:LongtermDebtType

sf:SeniorNotes400Due2030


None
Period End2020-06-30
Value400
Percentage of DebtInstrumentCarryingAmount28.1

sf:SeniorNotes4250Due2024


None
Period End2020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value500500500500500500500500500500500500500500500300300300
Percentage of DebtInstrumentCarryingAmount35.148.848.848.848.848.848.848.848.848.862.562.562.562.562.540.040.040.0

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value16406.4725.776.249.92332619
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss us-gaap:FairValueByAssetClass

sf:NonAgencyMortgageBackedSecurities


None
Period End2020-03-31
Value0.094
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss0.2

us-gaap:AgencySecurities


None
Period End2020-03-31
Value0.033
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss0.1

us-gaap:AssetBackedSecurities


None
Period End2020-03-312019-12-312019-09-302019-06-30
Value405.1493.5293.887
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss99.779.661.262.3

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument

sf:NonAgencyMortgageBackedSecurities, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302019-12-312019-09-30
Value0.0910.0230.027
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss0.60.40.5

us-gaap:AgencySecurities, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.0891.282.1060.9941.8663.7864.612.634
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss0.619.836.515.918.811.217.413.5

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss us-gaap:FinancialInstrument

us-gaap:AssetBackedSecurities


None
Period End2020-06-30
Value15
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss98.9

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value22858.321104.83713212228
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss us-gaap:FairValueByAssetClass

us-gaap:AgencySecurities


None
Period End2020-03-31
Value0.122
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss0.1

us-gaap:AssetBackedSecurities


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value673.0565.2414.3213167.814.855
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss79.336.750.689.398.973.334.517.2

us-gaap:CommercialMortgageBackedSecurities


None
Period End2020-03-31
Value0.482
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss0.6

us-gaap:FixedIncomeSecurities


None
Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value170.0190.0180.1061420
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss20.00.20.40.862.074.3

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument

us-gaap:AgencySecurities, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.1014.5714.9450.440.0010.1860.7312.328
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss0.554.947.79.10.00.83.28.3

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss us-gaap:FinancialInstrument

us-gaap:AssetBackedSecurities


None
Period End2020-06-30
Value22
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss99.4

us-gaap:FixedIncomeSecurities


None
Period End2020-06-30
Value0.04
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss0.2

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value3812514161123554947
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss us-gaap:FairValueByAssetClass

sf:NonAgencyMortgageBackedSecurities


None
Period End2020-03-31
Value0.094
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss0.1

us-gaap:AgencySecurities


None
Period End2020-03-31
Value0.155
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss0.1

us-gaap:AssetBackedSecurities


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1088.2058.778.20713167.814.855
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss85.855.554.374.157.828.815.910.2

us-gaap:CommercialMortgageBackedSecurities


None
Period End2020-03-31
Value0.482
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss0.4

us-gaap:FixedIncomeSecurities


None
Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value170.1050.7165.4162528
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss13.60.76.522.752.358.9

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument

sf:NonAgencyMortgageBackedSecurities, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302019-12-312019-09-302019-06-302018-12-312018-09-30
Value0.0910.0230.0270.020.0260.012
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss0.20.20.20.20.00.0

us-gaap:AgencySecurities, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.195.8517.0511.4341.8673.9725.3414.962
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss0.539.643.712.97.87.110.910.4

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss us-gaap:FinancialInstrument

us-gaap:AssetBackedSecurities


None
Period End2020-06-30
Value38
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss99.2

us-gaap:FixedIncomeSecurities


None
Period End2020-06-30
Value0.04
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss0.1

us-gaap:DebtSecuritiesTradingRestricted us-gaap:Collateral

us-gaap:DebtSecuritiesTradingRestricted

us-gaap:CollateralPledged


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value11001300816946130015001600210023002000
Percentage of DebtSecuritiesTradingRestricted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtSecuritiesTradingRestricted us-gaap:ShortTermDebtType

sf:CompanyOwnedSecurities