CATY


Line plots across dimensions of each concept
Tables

Table of contents



us-gaap:CommonStockValue

us-gaap:CommonStockParOrStatedValuePerShare
us-gaap:StatementEquityComponents
us-gaap:SharesOutstanding

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax
us-gaap:ProductOrService

us-gaap:InterestAndFeeIncomeLoansAndLeases

us-gaap:InterestExpense

us-gaap:InterestIncomeExpenseNet

us-gaap:InterestPaidNet
us-gaap:AwardType
us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:Assets

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:ShortTermInvestments
us-gaap:FairValueByMeasurementBasis

us-gaap:AmortizationOfIntangibleAssets

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:EquitySecuritiesFvNi
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType
us-gaap:FairValueByMeasurementBasis
us-gaap:InvestmentType

us-gaap:LongTermDebt

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapital

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:TreasuryStockValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:DepreciationDepletionAndAmortization

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:PaymentsOfDividends

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:EffectiveIncomeTaxRateContinuingOperations

caty:AccretionAmortizationOfInvestments

caty:AmortizationOfRightOfUseAssetOperatingLease

caty:AverageReserveBalancesRequiredToBeMaintainedWithFederalBank

caty:AverageSharesOfStockOptionsAndRestrictedStockUnitsWithAntiDilutiveEffect

caty:BenefitShortfallOfTaxDeductionsFromSharebasedCompensation

caty:ChangeInOperatingLeaseLiabilities

caty:DepositoryServiceFees

caty:DividendIncomeFromFederalHomeLoanBankStock

caty:FinancingReceivableAllowanceForCreditLossesNetChargeOffs
us-gaap:FinancingReceivablePortfolioSegment

caty:ForeclosedRealEstateExpenseIncome

caty:InterestExpenseDeferredPaymentsFromAcquisition

caty:LetterOfCreditCommissions

caty:NetChangeInUnrealizedHoldingLossGainOnSecuritiesAvailableForSaleNetOfTax

caty:NetIncreaseInInvestmentInAffordableHousingInvestingAndAlternativeEnergyPartnerships

caty:NoninteresIncomeNotInscope

caty:OperationsOfAffordableHousingInvestmentsNetAndAlternativeEnergyPartnershipsNet
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation
caty:PeriodicNetSettlementOnInterestRateSwapsExpense

caty:PeriodicNetSettlementsOnInterestRateSwapsIncome

caty:ProceedsFromSaleOfLoansOperatingActivities

caty:ProvisionReversalForLossesOnOtherRealEstateOwned
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
caty:TroubledDebtRestructuringsNewRestructurings
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
caty:TroubledDebtRestructuringsPaymentsReceivedInPeriod
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
caty:TroubledDebtRestructuringsRestructuredLoansPlacedOnNonaccrual

us-gaap:AccretionAmortizationOfDiscountsAndPremiumsInvestments

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation
us-gaap:StatementEquityComponents

us-gaap:AssetImpairmentCharges
us-gaap:FairValueByAssetClass
us-gaap:FairValueByAssetClass, us-gaap:FinancingReceivablePortfolioSegment

us-gaap:ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation

us-gaap:CommonStockDividendsPerShareCashPaid
us-gaap:StatementEquityComponents

us-gaap:DebtSecuritiesGainLoss

us-gaap:DividendsCommonStockCash
us-gaap:StatementEquityComponents

us-gaap:EquipmentExpense

us-gaap:EquitySecuritiesFvNiGainLoss

us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss

us-gaap:FederalDepositInsuranceCorporationPremiumExpense

us-gaap:FinancingReceivableAllowanceForCreditLossesRecovery
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableModificationsNumberOfContracts2
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableModificationsPostModificationRecordedInvestment2
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableModificationsPreModificationRecordedInvestment2
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:GainLossOnSalesOfLoansNet

us-gaap:GainsLossesOnSalesOfOtherRealEstate

us-gaap:ImpairedFinancingReceivableAverageRecordedInvestment
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:ImpairedFinancingReceivableInterestIncomeAccrualMethod
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:IncomeTaxesPaid

us-gaap:IncreaseDecreaseInDeferredIncomeTaxes

us-gaap:IncreaseDecreaseInDeposits

us-gaap:IncreaseDecreaseInOtherOperatingAssets

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities
us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:InformationTechnologyAndDataProcessing

us-gaap:InterestAndDividendIncomeOperating

us-gaap:InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm

us-gaap:InterestExpenseOtherDomesticDeposits

us-gaap:InterestExpenseOtherLongTermDebt

us-gaap:InterestExpenseShortTermBorrowingsExcludingFederalFundsAndSecuritiesSoldUnderAgreementsToRepurchase

us-gaap:InterestExpenseTimeDeposits

us-gaap:InterestIncomeDepositsWithFinancialInstitutions

us-gaap:InterestIncomeExpenseAfterProvisionForLoanLoss

us-gaap:InterestIncomeSecuritiesTaxable

us-gaap:MarketableSecuritiesGainLoss

us-gaap:MarketingExpense

us-gaap:NoninterestExpense

us-gaap:NoninterestIncome

us-gaap:NoninterestIncomeOtherOperatingIncome

us-gaap:OccupancyNet
us-gaap:StatementEquityComponents
us-gaap:OciBeforeReclassificationsBeforeTaxAttributableToParent
us-gaap:StatementEquityComponents
us-gaap:OciBeforeReclassificationsNetOfTaxAttributableToParent

us-gaap:OperatingLeaseExpense

us-gaap:OperatingLeasePayments
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsTax
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossTaxPortionAttributableToParent1

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

us-gaap:OtherNoninterestExpense

us-gaap:PaymentsForOriginationAndPurchasesOfLoansHeldForSale

us-gaap:PaymentsForProceedsFromLoansAndLeases

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsToAcquireAvailableForSaleSecurities

us-gaap:PaymentsToAcquireFederalHomeLoanBankStock

us-gaap:ProceedsFromFederalHomeLoanBankBorrowings

us-gaap:ProceedsFromIssuanceOfCommonStockDividendReinvestmentPlan

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities

us-gaap:ProceedsFromRepaymentsOfOtherDebt

us-gaap:ProceedsFromSaleOfAvailableForSaleSecurities

us-gaap:ProceedsFromSaleOfFederalHomeLoanBankStock

us-gaap:ProceedsFromSaleOfOtherRealEstate

us-gaap:ProceedsFromSaleOfTradingSecuritiesHeldforinvestment

us-gaap:ProfessionalFees
us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:Range, us-gaap:AdjustmentsForNewAccountingPronouncements
us-gaap:ProvisionForDoubtfulAccounts

us-gaap:ProvisionForLoanAndLeaseLosses

us-gaap:ProvisionForLoanLeaseAndOtherLosses
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
us-gaap:StatementEquityComponents
us-gaap:ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent
us-gaap:StatementEquityComponents
us-gaap:ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent
us-gaap:StatementEquityComponents
us-gaap:ReclassificationFromAociCurrentPeriodTax

us-gaap:RepaymentsOfFederalHomeLoanBankBorrowings

us-gaap:RepaymentsOfShortTermDebt

us-gaap:SalariesWagesAndOfficersCompensation
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesDividendReinvestmentPlan
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesIssuedForServices
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures

us-gaap:StockIssuedDuringPeriodValueDividendReinvestmentPlan
us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueIssuedForServices
us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures
us-gaap:StatementEquityComponents
us-gaap:ShareRepurchaseProgram
us-gaap:TreasuryStockAcquiredAverageCostPerShare
us-gaap:ShareRepurchaseProgram
us-gaap:TreasuryStockSharesAcquired
us-gaap:StatementEquityComponents

us-gaap:TreasuryStockValueAcquiredCostMethod
us-gaap:ShareRepurchaseProgram
us-gaap:StatementEquityComponents

caty:AffordableHousingInvestmentsAndAlternativeEnergyPartnershipsNet

caty:BillOfLadingGuaranteesFairValue

caty:BillOfLadingGuaranteesNotionalAmount

caty:CommitmentsToExtendCreditFairValue

caty:CommitmentsToExtendNotionalAmount
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation
caty:DerivativeOutstandingNotionalAmount
us-gaap:Range, us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation
us-gaap:Range, us-gaap:MeasurementInputType
caty:EstimatedSalesCostAppliedToCollateral
us-gaap:FinancingReceivablePortfolioSegment
caty:FinancingReceivableNumberOfContractsWithModifications
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:SubsequentEventType

caty:FinancingReceivablesImpairedTroubledDebtRestructuringSpecificReserve
us-gaap:ClassOfFinancingReceivableTypeOfBorrower
us-gaap:FinancingReceivablePortfolioSegment

caty:ForeignCurrencyContractAssetFairValueLossDisclosure

caty:ForeignExchangeContractAssetFairValueGainDisclosure
us-gaap:FinancingReceivablePortfolioSegment
caty:LoansAndLeasesReceivableWithModificationsGross
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:SubsequentEventType

caty:NetAmountOfDerivativeAssetsPresentedInTheBalanceSheet

caty:NetAmountOfDerivativeAssetsPresentedInTheBalanceSheetNotOffset

caty:NetAmountOfDerivativeLiabilitiesPresentedInTheBalanceSheet

caty:NotionalAmountOfForeignCurrencyDerivativePurchaseContractsWithGain

caty:NotionalAmountOfForeignCurrencyDerivativePurchaseContractsWithLoss
us-gaap:StatementGeographical
caty:NumberOfBranchLocations

caty:OptionContractsFairValue

caty:Options
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
caty:OtherBorrowingsFairValueDisclosure
us-gaap:FairValueByMeasurementBasis

caty:OtherBorrowingsForAffordableHousingInvestments

caty:OtherLettersOfCreditFairValue

caty:OtherLettersOfCreditNotionalAmount

caty:PercentageOfChargeOffToContractualBalancesForImpairedLoans

caty:PledgedInvestmentSecurities

caty:ReserveForOffBalanceSheetCreditCommitments
us-gaap:FinancingReceivablePortfolioSegment

caty:ReserveToImpairedLoans
us-gaap:FinancingReceivablePortfolioSegment

caty:ReserveToNonImpairedLoans
us-gaap:FinancingReceivablePortfolioSegment

caty:ShortTermInvestmentsAndInterestBearingDeposits
us-gaap:FairValueByMeasurementBasis
caty:ShorttermInvestmentFairValueDisclosure

caty:StandbyLettersOfCreditFairValue

caty:StandbyLettersOfCreditNotionalAmount
us-gaap:ClassOfFinancingReceivableTypeOfBorrower
caty:TroubledDebtRestructuringSpecificReserves

us-gaap:AdvancesFromFederalHomeLoanBanks
us-gaap:DebtInstrument
us-gaap:FairValueByLiabilityClass

us-gaap:AssetsFairValueDisclosure
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType
us-gaap:FairValueByMeasurementFrequency
us-gaap:InvestmentType

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
us-gaap:InvestmentType

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
us-gaap:InvestmentType

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue
us-gaap:InvestmentType

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue
us-gaap:InvestmentType

us-gaap:AvailableForSaleSecuritiesDebtSecurities
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType
us-gaap:FinancialInstrument
us-gaap:InvestmentType

us-gaap:AvailableForSaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsLessThanOneYear
us-gaap:InvestmentType

us-gaap:AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsGreaterThanOrEqualToOneYear
us-gaap:InvestmentType

us-gaap:BankAcceptancesExecutedAndOutstanding

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

us-gaap:CashAndDueFromBanks

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
us-gaap:FairValueByAssetClass
us-gaap:CollateralAlreadyPostedAggregateFairValue
us-gaap:BusinessAcquisition
us-gaap:DebtInstrumentInterestRateEffectivePercentage
us-gaap:LongtermDebtType

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

us-gaap:DepositsMoneyMarketDeposits

us-gaap:DepositsNegotiableOrderOfWithdrawalNOW

us-gaap:DepositsSavingsDeposits

us-gaap:DerivativeAssetNotionalAmount

us-gaap:DerivativeAssets
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementBasis
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation, us-gaap:VariableRate
us-gaap:DerivativeAverageBasisSpreadOnVariableRate
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation
us-gaap:DerivativeAverageFixedInterestRate
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation
us-gaap:DerivativeAverageVariableInterestRate
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeFairValueOfDerivativeNet

us-gaap:DerivativeLiabilities

us-gaap:DerivativeLiabilityFairValueOfCollateral

us-gaap:DerivativeLiabilityNotionalAmount
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeNotionalAmount
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation

us-gaap:DueFromCustomerAcceptances
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
us-gaap:FairValueByLiabilityClass
us-gaap:FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:FederalHomeLoanBankBorrowingsFairValueDisclosure
us-gaap:FairValueByMeasurementBasis

us-gaap:FederalHomeLoanBankStock

us-gaap:FinancingReceivableAllowanceForCreditLosses
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableCollectivelyEvaluatedForImpairment
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableIndividuallyEvaluatedForImpairment
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableRecordedInvestmentCurrent
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableRecordedInvestmentNonaccrualStatus
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableRecordedInvestmentPastDue
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivablesPeriodPastDue
us-gaap:FinancingReceivablesPeriodPastDue

us-gaap:ImpairedFinancingReceivableRecordedInvestment
us-gaap:ClassOfFinancingReceivableTypeOfBorrower

us-gaap:ImpairedFinancingReceivableRelatedAllowance
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:ImpairedFinancingReceivableUnpaidPrincipalBalance

us-gaap:ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:InterestRateDerivativeAssetsAtFairValue

us-gaap:InterestRateDerivativeLiabilitiesAtFairValue

us-gaap:InterestReceivable
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:InvestmentInFederalHomeLoanBankStockFairValueDisclosure
us-gaap:FairValueByMeasurementBasis

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LiabilitiesFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType
us-gaap:InvestmentType

us-gaap:LoansAndLeasesReceivableAllowance
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:LoansAndLeasesReceivableDeferredIncome

us-gaap:LoansAndLeasesReceivableGrossCarryingAmount

us-gaap:LoansAndLeasesReceivableNetReportedAmount
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:LoansReceivableFairValueDisclosure
us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:LongTermDebtFairValue
us-gaap:FairValueByMeasurementBasis

us-gaap:MarginDepositAssets

us-gaap:NoninterestBearingDepositLiabilities

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OtherAssets
us-gaap:OtherCommitments
us-gaap:OtherCommitment

us-gaap:OtherLiabilities

us-gaap:OtherRealEstateAndForeclosedAssets

us-gaap:RestrictedCash

us-gaap:SecuritiesSoldUnderAgreementsToRepurchase
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:ShortTermBorrowings
us-gaap:DebtInstrument
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:ShorttermDebtFairValue
us-gaap:FairValueByMeasurementBasis

us-gaap:TimeDeposits

us-gaap:TreasuryStockShares
us-gaap:Range, us-gaap:MeasurementInputType
us-gaap:WarrantsAndRightsOutstandingMeasurementInput

Tables

  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:CommonStockValue ██▇▇▇▇▆▆▆▅▄▄▁▁0.9030.9020.90.90.90.8990.8980.8960.8950.8940.8910.890.8810.88
us-gaap:CommonStockParOrStatedValuePerShare ▄▄▄▄▄▄▄▄▄▄▄▄▄▄1e-081e-081e-081e-081e-081e-081e-081e-081e-081e-081e-081e-081e-081e-08
 us-gaap:SharesOutstanding us-gaap:StatementEquityComponents caty:CommonStockOutstanding▆▁█79.61998479.42026779.729419NA79.81800380.3628480.501948NANANA80.893379NANANA
us-gaap:CommonStockSharesIssued █▇▇▇▇▇▆▆▅▅▄▄▁▁90.35494790.1552390.06438290.04147490.01796689.92090989.82631789.6066989.46632689.41764189.10402289.02725988.07299788.022322
us-gaap:CommonStockSharesOutstanding ▂▁▂▂▂▄▅██▇▆▆▃▂79.61998479.42026779.72941979.70651179.81800380.3628480.50194881.39604781.25568381.20699880.89337980.81661679.86235479.811679
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding ▁█79.68242679.830025NA79.9938380.30267980.703134NA81.85527181.77498681.680445NA81.40485480.56260780.413178
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic ▁█79.58109779.588076NA79.73681480.10632980.455317NA81.31189981.23631581.12338NA80.66539879.84018879.703593
us-gaap:EarningsPerShareBasic ▅▄▇██▇▇▇█▇▁▅▅▄6.800000000000001e-075.9e-078.5e-079.100000000000001e-079.000000000000001e-078.3e-078.000000000000001e-078.6e-079.100000000000001e-077.900000000000001e-073.2e-076.2e-076.4e-076.1e-07
us-gaap:EarningsPerShareDiluted ▅▄▇██▇▇▇█▆▁▄▅▄6.800000000000001e-075.9e-078.4e-079.100000000000001e-079.000000000000001e-078.3e-078.000000000000001e-078.5e-079.000000000000001e-077.8e-073.2e-076.1e-076.4e-076.1e-07
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax ▄██▅▆▄▄▃▄▃▂▂▁▃7.0728.5638.697.5868.0927.1117.1726.9317.0156.8676.4886.5025.9996.66
us-gaap:InterestAndFeeIncomeLoansAndLeases ▆▇▇█▇▇▇▆▅▄▄▃▂▁168.149177.87181.224187.827182.291178.277174.352168.179158.659151.29148.162146.383129.836124.91
us-gaap:InterestExpense ▆▇███▇▅▄▃▂▂▂▁▁39.53346.42550.01550.83149.0744.44538.42831.78227.48924.35722.59320.88218.27718.69
us-gaap:InterestIncomeExpenseNet ▅▇▇█▇▇██▇▆▅▅▂▁134.475140.311141.211147.0143.379143.316145.441145.084140.031135.343133.047133.196117.352112.114
us-gaap:InterestPaidNet ▆█▇█▇▆▅▃▃▂▂▁▁▁43.00351.24845.10549.78645.88241.75436.64730.27127.09722.50922.65319.15718.76420.495
 us-gaap:AllocatedShareBasedCompensationExpense us-gaap:AwardType us-gaap:RestrictedStockUnitsRSU▁▄▇▇▄▄█▇▇▄▃▃▄▂1.01.51.81.81.51.52.01.91.91.51.31.31.41.2
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▁▁▆█▇▆▆▇▆▆▅▆▃▃57.81355.94383.66793.80886.62785.26781.8488.45584.7182.68277.10684.90966.84669.446
us-gaap:IncomeTaxExpenseBenefit ▁▂▃▄▃▃▃▃▂▃█▆▃▃3.4929.09116.2920.97314.38318.58817.19318.69811.04618.86651.16635.16315.43120.505
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▄▇▆▅█▇▇▄▄▁▄▅▅▅-1.5247.5753.1350.5259.0737.5755.774-0.862-2.015-9.321-2.2941.2032.2220.073
us-gaap:NetIncomeLoss ▅▄▇██▇▇▇█▇▁▄▅▄54.32146.85267.37772.83572.24466.67964.64869.75773.66463.81625.9449.74651.41548.941
us-gaap:ComprehensiveIncomeNetOfTax ▅▅▇▇█▇▇▆▇▅▁▄▅▄52.79754.42770.51273.3681.31774.25470.42268.89571.64954.49523.64650.94953.63749.014
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:Assets █▇▆▆▆▅▅▄▄▃▃▃▁▁19267.03718296.45918094.14418004.96617606.00617119.09216784.73716461.72216197.74615882.33715640.18615728.41714336.78514223.957
us-gaap:Liabilities █▇▆▆▆▅▅▄▄▃▃▃▁▁16924.58915983.42215799.86115759.07215406.70914955.76314662.87114344.94714132.91313872.54513666.88213759.71812439.01912366.055
us-gaap:LiabilitiesAndStockholdersEquity █▇▆▆▆▅▅▄▄▃▃▃▁▁19267.03718296.45918094.14418004.96617606.00617119.09216784.73716461.72216197.74615882.33715640.18615728.41714336.78514223.957
us-gaap:StockholdersEquity ██▇▇▆▅▅▅▄▃▃▃▂▁2342.4482313.0372294.2832245.8942199.2972163.3292121.8662116.7752064.8332009.7921973.3041968.6991897.7661857.902
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
 us-gaap:ShortTermInvestments us-gaap:FairValueByFairValueHierarchyLevel,us-gaap:FairValueByMeasurementBasis us-gaap:FairValueInputsLevel1,us-gaap:EstimateOfFairValueFairValueDisclosure█▁▁1425.001363.666416.538NANANA374.957NANANANANANANA
 us-gaap:ShortTermInvestments us-gaap:FairValueByMeasurementBasis us-gaap:EstimateOfFairValueFairValueDisclosure█▁▁1425.001363.666416.538NANANA374.957NANANANANANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:AmortizationOfIntangibleAssets ▁▁▁▁▁▁▁▂▇▄█▇▁▁0.1710.1720.1720.1720.1710.1720.1720.190.280.2340.3040.2810.1730.172
us-gaap:PropertyPlantAndEquipmentNet ▄▃▄▃▂▃▂▂▂▁▂█▄▅104.165103.481104.239103.82102.919103.237103.189102.565102.415101.926103.064107.954104.131105.025
us-gaap:Goodwill ▄▄▄▄▄▄▄▄▄▄▄▄▄▄372.189372.189372.189372.189372.189372.189372.189372.189372.189372.189372.189372.189372.189372.189
us-gaap:IntangibleAssetsNetExcludingGoodwill ▅▅▅▅▅▅▆▆▆▆▇█▁▁6.036.1876.2966.8216.7826.8747.1947.3917.4627.8038.0629.4082.5372.749
us-gaap:OperatingLeaseRightOfUseAsset ▇▇▇▇██▁34.21732.74333.9934.51836.51538.5910.0NANANANANANANA
us-gaap:EquitySecuritiesFvNi ▄▁▆██▆▄▃▃▄▆24.5718.7928.00532.86232.49829.26125.09823.52223.13124.15428.1NANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:LongTermDebt ▁▁▁▅▆▆█████▁▁▁119.136119.136119.136160.386169.761174.448189.448194.136194.136194.136194.136119.136119.136119.136
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:StockholdersEquity ██▇▇▆▅▅▅▄▃▃▃▂▁2342.4482313.0372294.2832245.8942199.2972163.3292121.8662116.7752064.8332009.7921973.3041968.6991897.7661857.902
us-gaap:CommonStockValue ██▇▇▇▇▆▆▆▅▄▄▁▁0.9030.9020.90.90.90.8990.8980.8960.8950.8940.8910.890.8810.88
us-gaap:AdditionalPaidInCapital ███▇▇▇▇▆▆▆▆▆▁▁953.616952.331950.466947.88945.25942.838942.062939.801937.224934.335932.874932.521895.578892.583
us-gaap:RetainedEarningsAccumulatedDeficit ██▇▇▆▅▅▄▄▃▂▂▁▁1710.9941681.3451659.1531616.4851568.3511520.8611479.1491439.451389.2241335.0581281.6391275.0941242.3161207.67
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ██▆▆▆▄▂▁▁▂▅▆▆▅8.3539.8772.302-0.833-1.358-10.431-18.006-23.783-22.921-20.906-2.511-0.217-1.42-3.642
us-gaap:TreasuryStockValue ██▇▇▇▅▄▁▁▁▁▁▁▁331.418331.418318.538318.538313.846290.838282.237239.589239.589239.589239.589239.589239.589239.589
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue ▁▅▆▇▅▅█▇▇▄1.0011.5431.7531.7891.5251.5342.01.9211.9051.499NANANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▅▆▆█▅▅▆▅▄▅▇▁▅▄77.19895.033111.231150.22586.32587.19897.20689.18465.284.948125.275-6.63476.16754.066
us-gaap:NetCashProvidedByUsedInInvestingActivities ▇▃▃▄▂▃▃▅▁▅▅█▃▅107.793-361.521-382.015-185.629-440.365-373.665-328.179-126.495-582.653-97.0-65.566279.046-352.744-85.401
us-gaap:NetCashProvidedByUsedInFinancingActivities █▄▃▅▅▄▄▄▄▄▃▅▃▁888.694172.72639.416302.824373.386224.557254.246215.187197.869195.97619.461308.12910.409-333.169
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect █▂▁▄▃▂▃▃▁▄1073.685-93.762-231.368267.4219.346-61.9118.273177.876-319.584188.924NANANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▅▆▆█▅▅▆▅▄▅▇▁▅▄77.19895.033111.231150.22586.32587.19897.20689.18465.284.948125.275-6.63476.16754.066
us-gaap:NetIncomeLoss ▅▄▇██▇▇▇█▇▁▄▅▄54.32146.85267.37772.83572.24466.67964.64869.75773.66463.81625.9449.74651.41548.941
us-gaap:DepreciationDepletionAndAmortization ▆▄▃▂▂▁▃▃▅█▅▆▃▄1.8911.7971.7471.7011.6821.6261.7211.7251.8592.0091.8491.9121.7351.769
us-gaap:ShareBasedCompensation █▁1.8011.543NA1.7892.2741.5341.9981.9222.5551.4991.2851.3421.9241.183
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▇▃▃▄▂▃▃▅▁▅▅█▃▅107.793-361.521-382.015-185.629-440.365-373.665-328.179-126.495-582.653-97.0-65.566279.046-352.744-85.401
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment █▅▇█▅▆▇▇▇▄▇▁▄▅2.4490.8672.0082.431.1931.5022.1741.792.0680.6382.212-0.7420.7021.016
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities █▄▃▅▅▄▄▄▄▄▃▅▃▁888.694172.72639.416302.824373.386224.557254.246215.187197.869195.97619.461308.12910.409-333.169
us-gaap:PaymentsOfDividends ███████▃▃▃▃▁▁▁24.67324.65924.70924.70124.75424.96724.9319.53219.49719.46919.39716.96716.76816.756
us-gaap:PaymentsForRepurchaseOfCommonStock ▁▃▁▂▅▂█▁0.012.880.04.69223.0088.60142.6480.0NANANANANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31

None

us-gaap:CommonStockValue

us-gaap:CommonStockValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value903000.0902000.0900000.0900000.0900000.0899000.0898000.0896000.0895000.0894000.0891000.0890000.0881000.0880000.0878000.0871000.0871000.0870000.0870000.0869000.0842000.0841000.0840000.0839000.0839000.0838000.0838000.0831000.0831000.0831000.0830000.0830000.0829000.0829000.0829000.0829000.0828000.0828000.0827000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:CommonStockParOrStatedValuePerShare

us-gaap:CommonStockParOrStatedValuePerShare


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312011-03-232011-03-152010-12-31
Value0.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.0116.1516.140.01
Percentage of CommonStockParOrStatedValuePerShare100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:SharesOutstanding us-gaap:StatementEquityComponents

us-gaap:SharesOutstanding

caty:CommonStockOutstanding


None
Period End2020-06-302020-03-312019-12-312019-06-302019-03-312018-12-312017-12-312016-12-31
Value7979797980808079
Percentage of SharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesIssued


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value909090909089898989898989888887878787878684848483838383838383828282828282828282
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStockSharesOutstanding


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value797979797980808181818080797979787878808180847979797979787878787878787878787878
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value7979798080818181818080797980828080808080797878787878787878787872
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value7979798080818181807979787879817979797979787878787878787878787872
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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
Value0.680.590.850.910.90.830.80.860.910.790.320.620.640.610.610.580.440.580.510.470.570.450.450.450.440.390.40.380.350.30.310.330.330.320.30.280.260.230.180.17-0.03-0.41
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
Value0.680.590.840.910.90.830.80.850.90.780.320.610.640.610.60.580.440.570.510.470.560.450.440.450.440.390.40.380.350.30.310.330.330.320.30.280.260.230.180.17-0.03-0.41
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:RevenueFromContractWithCustomerIncludingAssessedTax

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax


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
Value7.0728.5638.697.5868.0927.1117.1726.9317.0156.8676.4886.5025.9996.66
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService

caty:FeesAndServicesChargesOnDepositAccount


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
Value1.8732.0541.9081.8922.022.0271.9662.0272.0762.3182.132.2862.2452.512
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax26.524.022.024.925.028.527.429.229.633.832.835.237.437.7
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax26.524.022.024.925.028.527.429.229.633.832.835.237.437.7
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax caty:FeesAndServicesChargesOnDepositAccount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:OtherServiceFees


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
Value2.993.3723.7993.6453.5593.3883.5533.3763.5163.2483.1993.8633.183.169
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax42.339.443.748.044.047.649.548.750.147.349.359.453.047.6
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax42.339.443.748.044.047.649.548.750.147.349.359.453.047.6
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax caty:OtherServiceFees100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:WealthManagementFees


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
Value2.2093.1372.9832.0492.5131.6961.6531.5281.4231.3011.1590.3530.5740.979
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax31.236.634.327.031.123.923.022.020.318.917.95.49.614.7
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax31.236.634.327.031.123.923.022.020.318.917.95.49.614.7
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax caty:WealthManagementFees100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:InterestAndFeeIncomeLoansAndLeases

us-gaap:InterestAndFeeIncomeLoansAndLeases


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
Value168177181187182178174168158151148146129124124118115114112109104100100100979292908788919088909192899094959595
Percentage of InterestAndFeeIncomeLoansAndLeases100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax2377.72077.22085.42476.02252.72507.12431.02426.52261.72203.12283.62251.42164.31875.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap: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
Value394650504944383127242220181820202019201917171819191819192021242628293133363843474951
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 RevenueFromContractWithCustomerIncludingAssessedTax559.0542.2575.5670.1606.4625.0535.8458.5391.9354.7348.2321.2304.7280.60.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:InterestIncomeExpenseNet

us-gaap:InterestIncomeExpenseNet


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
Value134140141147143143145145140135133133117112109103101102999794878786858281827980818079807980787575737474
Percentage of InterestIncomeExpenseNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax1901.51638.61625.01937.81771.92015.42027.92093.31996.21970.92050.72048.51956.21683.40.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value435145494541363027222219182020
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax608.1598.5519.0656.3567.0587.2511.0436.7386.3327.8349.2294.6312.8307.70.0

None

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:AwardType

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:RestrictedStockUnitsRSU


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-03-312013-12-312013-09-302012-12-312012-09-30
Value1000000.01500000.01800000.01800000.01500000.01500000.02000000.01900000.01900000.01500000.01300000.01300000.01400000.01200000.01100000.01200000.01000000.01000000.01100000.0400000.0500000.0100000.0438000.0
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax14.117.520.723.718.521.127.927.427.121.820.020.023.318.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:RestrictedStockUnitsRSU0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value5755839386858188848277846669
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax817.5653.3962.81236.61070.51199.11141.11276.21207.61204.01188.41305.91114.31042.7

None

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3.4929.0911620141817181118513515201615122216129.73821212220171719161615171616141410116.7897.023-5.373-23.068
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax49.4106.2187.5276.5177.7261.4239.7269.8157.5274.7788.6540.8257.2307.90.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap: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
Value-1.5247.5753.1350.5259.0737.5755.774-0.862-2.015-9.321-2.2941.2032.2220.073-5.6180.7612.2157.353-5.8290.185-2.1364.9233.2660.061137.639-8.546-6.11-38.5523-1.4825.6350.8494.195-3.241-9.8738.973-3.57
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 RevenueFromContractWithCustomerIncludingAssessedTax-21.588.536.16.9112.1106.580.5-12.4-28.7-135.7-35.418.537.01.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap: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
Value544667727266646973632549514848463446413845353535353132322928283029282726242218171.923-25.741
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 RevenueFromContractWithCustomerIncludingAssessedTax768.1547.1775.3960.1892.8937.7901.41006.41050.1929.3399.8765.1857.1734.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap: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
Value54466772726664697363
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax768.1547.1775.3960.1892.8937.7901.41006.41050.1929.3
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.0

None

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value52547073817470687154235053494246375335384340383548382326-8.634512635303324163318-7.2281718-17.692
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax746.6635.6811.4967.01004.91044.2981.9994.01021.4793.6364.5783.6894.1735.90.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:Assets

us-gaap:Assets


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value192671829618094180041760617119167841646116197158821564015728143361422314520140981349313262132541274911918119101151611599115561129110989108211060310520106941060410661105731064410499105351061410801
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:Liabilities

us-gaap:Liabilities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value169241598315799157591540614955146621434414132138721366613759124391236612692123051173411527115061101710249102759913100291001897969530938690638971906489989088902791299004905391629365
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets87.887.487.387.587.587.487.487.187.387.387.487.586.886.987.487.387.086.986.886.486.086.386.186.586.786.886.786.785.585.384.884.985.285.485.885.885.986.386.7

None

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value192671829618094180041760617119167841646116197158821564015728143361422314520140981349313262132541274911918119101151611599115561129110989108211060310520106941060410661105731064410499105351061410801
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value234223132294224521992163212121162064200919731968189718571828179017601734174716021458142615301541162115971564153715071486147314431427
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets12.212.612.712.512.512.612.612.912.712.712.612.513.213.112.612.713.013.113.213.913.313.214.414.615.215.114.714.514.214.214.013.613.2

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

caty:CommonStockOutstanding


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
Value0.9030.9020.90.90.90.8990.8980.8960.8950.8940.8910.878
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets caty:CommonStockOutstanding0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


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
Value-7.925-7.69-3.412-4.36-3.567-1.465-0.2412.8291.1630.427-1.451-2.264-2.421-1.871-2.17
Percentage of StockholdersEquity-0.3-0.3-0.1-0.2-0.2-0.1-0.00.10.10.0-0.1-0.1-0.1-0.1-0.1
Percentage of Assets-0.0-0.0-0.0-0.0-0.0-0.0-0.00.00.00.0-0.0-0.0-0.0-0.0-0.0
Percentage of Assets us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


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
Value16175.7143.5272.209-8.966-17.765-26.612-24.084-21.333-1.062.0471.001-1.771-1.5458.4968.5395.042-5.431-3.172
Percentage of StockholdersEquity0.70.80.20.20.1-0.4-0.8-1.3-1.2-1.1-0.10.10.1-0.1-0.10.50.50.3-0.3-0.2
Percentage of Assets0.10.10.00.00.0-0.1-0.1-0.2-0.1-0.1-0.00.00.0-0.0-0.00.10.10.0-0.0-0.0
Percentage of Assets us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value8.3539.8772.302-0.833-1.358-10.431-18.006-23.783-22.921-20.906-2.511-0.217-1.42-3.642-3.7151.9031.142-1.073-8.426-5.569-29.7290.465-8.732-1.022-0.875
Percentage of StockholdersEquity0.40.40.1-0.0-0.1-0.5-0.8-1.1-1.1-1.0-0.1-0.0-0.1-0.2-0.20.10.1-0.1-0.5-0.3-2.00.0-0.6-0.10.0
Percentage of Assets0.00.10.0-0.0-0.0-0.1-0.1-0.1-0.1-0.1-0.0-0.0-0.0-0.0-0.00.00.0-0.0-0.1-0.0-0.30.0-0.1-0.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value953952950947945942942939937934932895880789784768765762634
Percentage of StockholdersEquity40.741.241.442.243.043.644.444.445.446.547.349.050.449.353.847.450.853.40.0
Percentage of Assets4.95.25.35.35.45.55.65.75.85.96.06.26.66.97.17.27.27.10.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value1710168116591616156815201479143913891335128111751059943829721624543551
Percentage of StockholdersEquity73.072.772.372.071.370.369.768.067.366.464.964.360.658.956.844.541.438.10.0
Percentage of Assets8.99.29.29.08.98.98.88.78.68.48.28.18.08.27.56.85.95.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value-331.418-331.418-318.538-318.538-313.846-290.838-282.237-239.589-239.589-239.589-239.589-239.589-185.148-125.736-125.736-125.736-125.736-125.736-125.736
Percentage of StockholdersEquity-14.1-14.3-13.9-14.2-14.3-13.4-13.3-11.3-11.6-11.9-12.1-13.1-10.6-7.8-8.6-7.8-8.3-8.80.0
Percentage of Assets-1.7-1.8-1.8-1.8-1.8-1.7-1.7-1.5-1.5-1.5-1.5-1.6-1.4-1.1-1.1-1.2-1.2-1.20.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:ShortTermInvestments us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

us-gaap:ShortTermInvestments

us-gaap:FairValueInputsLevel1, us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value1425363416374
Percentage of ShortTermInvestments100.0100.0100.0100.0
Percentage of Assets7.42.02.32.2
Percentage of Assets us-gaap:FairValueInputsLevel1 us-gaap:EstimateOfFairValueFairValueDisclosure0.00.00.00.0

us-gaap:ShortTermInvestments us-gaap:FairValueByMeasurementBasis

us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value1425363416374
Percentage of ShortTermInvestments100.0100.0100.0100.0
Percentage of Assets7.42.02.32.2
Percentage of Assets us-gaap:EstimateOfFairValueFairValueDisclosure0.00.00.00.0

None

us-gaap:AmortizationOfIntangibleAssets

us-gaap:AmortizationOfIntangibleAssets


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value171000.0172000.0172000.0172000.0171000.0172000.0172000.0190000.0280000.0234000.0304000.0281000.0173000.0172000.0172000.0172000.0173000.0172000.0174000.0169000.0147000.0177000.0209000.0214000.0124000.0172000.0436000.01363000.01338000.01396000.01398000.01404000.01404000.01457000.01457000.01461000.01460000.01481000.01482000.01484000.01485000.01507000.0
Percentage of AmortizationOfIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value104103104103102103103102102101103107104105105106107108108110979899100101102102102102102102103104105105106107108109
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 Assets0.50.60.60.60.60.60.60.60.60.60.70.70.70.70.70.80.80.80.80.90.80.80.90.90.90.90.90.91.01.01.01.01.01.01.01.01.01.01.0

None

us-gaap:Goodwill

us-gaap:Goodwill


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value372372372372372372372372372372372372372372372372372372372373316316316316316316316316316316316316316316316316316316316
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.92.02.12.12.12.22.22.32.32.32.42.42.62.62.62.62.82.82.82.92.72.72.72.72.72.82.92.93.03.03.03.03.03.03.03.03.03.02.9

None

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value6.036.1876.2966.8216.7826.8747.1947.3917.4627.8038.0629.4082.5372.7492.9493.1583.313.4973.6774.1082.9483.0843.2373.4591.9292.0512.232.7654.1134.8836.1327.6389.147101112141517
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.10.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.10.10.10.10.10.10.10.2

None

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value3432333436380.0
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.20.20.20.20.20.20.0

None

us-gaap:EquitySecuritiesFvNi

us-gaap:EquitySecuritiesFvNi


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
Value2418283232292523232428
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.20.20.20.20.10.10.10.20.2

us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel1


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value24182832322925232324
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.20.20.20.20.10.10.10.2
Percentage of Assets us-gaap:FairValueInputsLevel10.00.00.00.00.00.00.00.00.00.0

us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

us-gaap:FairValueInputsLevel1, us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value24182825
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0
Percentage of Assets0.10.10.20.1
Percentage of Assets us-gaap:FairValueInputsLevel1 us-gaap:EstimateOfFairValueFairValueDisclosure0.00.00.00.0

us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType

us-gaap:FairValueInputsLevel1, caty:MutualFunds


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value6.4316.3776.2776.3076.2596.1716.094
Percentage of EquitySecuritiesFvNi26.233.922.419.219.321.124.3
Percentage of Assets0.00.00.00.00.00.00.0
Percentage of Assets us-gaap:FairValueInputsLevel1 caty:MutualFunds0.00.00.00.00.00.00.0

us-gaap:FairValueInputsLevel1, caty:OtherEquitySecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value138.651111121111
Percentage of EquitySecuritiesFvNi54.046.040.034.737.139.844.6
Percentage of Assets0.10.00.10.10.10.10.1
Percentage of Assets us-gaap:FairValueInputsLevel1 caty:OtherEquitySecurities0.00.00.00.00.00.00.0

us-gaap:FairValueInputsLevel1, caty:PreferredStockOfGovernmentSponsoredEntities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value4.8683.763101514117.822
Percentage of EquitySecuritiesFvNi19.820.037.646.143.639.131.2
Percentage of Assets0.00.00.10.10.10.10.0
Percentage of Assets us-gaap:FairValueInputsLevel1 caty:PreferredStockOfGovernmentSponsoredEntities0.00.00.00.00.00.00.0

us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value24182832322925232324
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.20.20.20.20.10.10.10.2
Percentage of Assets us-gaap:CarryingReportedAmountFairValueDisclosure0.00.00.00.00.00.00.00.00.00.0

us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value24182832322925232324
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.20.20.20.20.10.10.10.2
Percentage of Assets us-gaap:EstimateOfFairValueFairValueDisclosure0.00.00.00.00.00.00.00.00.00.0

us-gaap:EquitySecuritiesFvNi us-gaap:InvestmentType

caty:MutualFunds


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value6.4316.3776.2776.3076.2596.1716.094
Percentage of EquitySecuritiesFvNi26.233.922.419.219.321.124.3
Percentage of Assets0.00.00.00.00.00.00.0
Percentage of Assets caty:MutualFunds0.00.00.00.00.00.00.0

caty:OtherEquitySecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value138.651111121111
Percentage of EquitySecuritiesFvNi54.046.040.034.737.139.844.6
Percentage of Assets0.10.00.10.10.10.10.1
Percentage of Assets caty:OtherEquitySecurities0.00.00.00.00.00.00.0

caty:PreferredStockOfGovernmentSponsoredEntities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value4.8683.763101514117.822
Percentage of EquitySecuritiesFvNi19.820.037.646.143.639.131.2
Percentage of Assets0.00.00.10.10.10.10.0
Percentage of Assets caty:PreferredStockOfGovernmentSponsoredEntities0.00.00.00.00.00.00.0

None

us-gaap:LongTermDebt

us-gaap:LongTermDebt


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value119119119160169174189194194194194119119119119119119119119119119119119119119121121171171171171171171171171171171171171
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.70.70.91.01.01.11.21.21.21.20.80.80.80.80.80.90.90.90.91.01.01.01.01.01.11.11.61.61.61.61.61.61.61.61.61.61.61.6

None

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value234223132294224521992163212121162064200919731968189718571828179017601734174716021458142615301541162115971564153715071486147314431427
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets12.212.612.712.512.512.612.612.912.712.712.612.513.213.112.612.713.013.113.213.913.313.214.414.615.215.114.714.514.214.214.013.613.2

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

caty:CommonStockOutstanding


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
Value0.9030.9020.90.90.90.8990.8980.8960.8950.8940.8910.878
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets caty:CommonStockOutstanding0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


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
Value-7.925-7.69-3.412-4.36-3.567-1.465-0.2412.8291.1630.427-1.451-2.264-2.421-1.871-2.17
Percentage of StockholdersEquity-0.3-0.3-0.1-0.2-0.2-0.1-0.00.10.10.0-0.1-0.1-0.1-0.1-0.1
Percentage of Assets-0.0-0.0-0.0-0.0-0.0-0.0-0.00.00.00.0-0.0-0.0-0.0-0.0-0.0
Percentage of Assets us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


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
Value16175.7143.5272.209-8.966-17.765-26.612-24.084-21.333-1.062.0471.001-1.771-1.5458.4968.5395.042-5.431-3.172
Percentage of StockholdersEquity0.70.80.20.20.1-0.4-0.8-1.3-1.2-1.1-0.10.10.1-0.1-0.10.50.50.3-0.3-0.2
Percentage of Assets0.10.10.00.00.0-0.1-0.1-0.2-0.1-0.1-0.00.00.0-0.0-0.00.10.10.0-0.0-0.0
Percentage of Assets us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value8.3539.8772.302-0.833-1.358-10.431-18.006-23.783-22.921-20.906-2.511-0.217-1.42-3.642-3.7151.9031.142-1.073-8.426-5.569-29.7290.465-8.732-1.022-0.875
Percentage of StockholdersEquity0.40.40.1-0.0-0.1-0.5-0.8-1.1-1.1-1.0-0.1-0.0-0.1-0.2-0.20.10.1-0.1-0.5-0.3-2.00.0-0.6-0.10.0
Percentage of Assets0.00.10.0-0.0-0.0-0.1-0.1-0.1-0.1-0.1-0.0-0.0-0.0-0.0-0.00.00.0-0.0-0.1-0.0-0.30.0-0.1-0.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value953952950947945942942939937934932895880789784768765762634
Percentage of StockholdersEquity40.741.241.442.243.043.644.444.445.446.547.349.050.449.353.847.450.853.40.0
Percentage of Assets4.95.25.35.35.45.55.65.75.85.96.06.26.66.97.17.27.27.10.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value1710168116591616156815201479143913891335128111751059943829721624543551
Percentage of StockholdersEquity73.072.772.372.071.370.369.768.067.366.464.964.360.658.956.844.541.438.10.0
Percentage of Assets8.99.29.29.08.98.98.88.78.68.48.28.18.08.27.56.85.95.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value-331.418-331.418-318.538-318.538-313.846-290.838-282.237-239.589-239.589-239.589-239.589-239.589-185.148-125.736-125.736-125.736-125.736-125.736-125.736
Percentage of StockholdersEquity-14.1-14.3-13.9-14.2-14.3-13.4-13.3-11.3-11.6-11.9-12.1-13.1-10.6-7.8-8.6-7.8-8.3-8.80.0
Percentage of Assets-1.7-1.8-1.8-1.8-1.8-1.7-1.7-1.5-1.5-1.5-1.5-1.6-1.4-1.1-1.1-1.2-1.2-1.20.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:CommonStockValue

us-gaap:CommonStockValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value903000.0902000.0900000.0900000.0900000.0899000.0898000.0896000.0895000.0894000.0891000.0890000.0881000.0880000.0878000.0871000.0871000.0870000.0870000.0869000.0842000.0841000.0840000.0839000.0839000.0838000.0838000.0831000.0831000.0831000.0830000.0830000.0829000.0829000.0829000.0829000.0828000.0828000.0827000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:AdditionalPaidInCapital

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value953952950947945942942939937934932932895892895886884882880877790787789787786785784771770769768768767766765765764764762
Percentage of AdditionalPaidInCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.95.25.35.35.45.55.65.75.85.96.05.96.26.36.26.36.66.76.66.96.66.66.96.86.87.07.17.17.37.37.27.27.27.27.27.37.37.27.1

None

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value171016811659161615681520147914391389133512811275124212071175114411121091105910321005971943916885856829801771744721698673648624601580560543
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.99.29.29.08.98.98.88.78.68.48.28.18.78.58.18.18.28.28.08.18.48.28.27.97.77.67.57.47.37.16.86.66.36.15.95.75.55.35.0

None

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value8.3539.8772.302-0.833-1.358-10.431-18.006-23.783-22.921-20.906-2.511-0.217-1.42-3.642-3.7151.9031.142-1.073-8.426-2.597-2.782-0.646-5.569-8.835-8.896-22.09-29.729-21.183-15.073230.4651.947-3.688-4.537-8.732-5.494.382-4.592-1.022
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.10.0-0.0-0.0-0.1-0.1-0.1-0.1-0.1-0.0-0.0-0.0-0.0-0.00.00.0-0.0-0.1-0.0-0.0-0.0-0.0-0.1-0.1-0.2-0.3-0.2-0.10.20.00.0-0.0-0.0-0.1-0.10.0-0.0-0.0

None

us-gaap:TreasuryStockValue

us-gaap:TreasuryStockValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value331331318318313290282239239239239239239239239239239239185176125125125125125125125125125125125125125125125125125125125
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.71.81.81.81.81.71.71.51.51.51.51.51.71.71.61.71.81.81.41.41.11.11.11.11.11.11.11.21.21.21.21.21.21.21.21.21.21.21.2

None

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1001000.01543000.01753000.01789000.01525000.01534000.02000000.01921000.01905000.01499000.0
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

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

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
Value1001000.01543000.01753000.01789000.01525000.01534000.02000000.01921000.01905000.01499000.0
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 End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value7795111150868797896584125-6.6347654637950415237305545372046221833393811834-26.04205-108.815522513464364
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax1091.61109.81280.01980.31066.81226.21355.41286.7929.41237.01930.9-102.01269.7811.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value107-361.521-382.015-185.629-440.365-373.665-328.179-126.495-582.653-97.0-65.566279-352.744-85.401-427.275-653.697-226.97824-518.714-292.74612-379.05978-76.58-161.902-299.725-228.229-125.993-138.308180-59.382-53.176-60.261126-407.387242102189437121442-405.071
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax1524.2-4221.9-4396.0-2447.0-5442.0-5254.7-4575.8-1825.1-8305.8-1412.6-1010.64291.7-5880.0-1282.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value888172393023732242542151971951930810-333.169377549213-52.868449284-58.768328-148.309-6.33222526115717681-209.95351-85.20741-99.025110-53.476-113.115-214.719-439.027-171.208-472.857305
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax12566.42017.1453.63991.94614.33157.93545.03104.72820.72853.9300.04739.0173.5-5002.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1073-93.762-231.36826719-61.9118177-319.584188
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax15182.2-1095.0-2662.53525.2239.1-870.6254.82566.4-4555.72751.2

None

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value7795111150868797896584125-6.6347654637950415237305545372046221833393811834-26.04205-108.815522513464364
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax1091.61109.81280.01980.31066.81226.21355.41286.7929.41237.01930.9-102.01269.7811.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap: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
Value544667727266646973632549514848463446413845353535353132322928283029282726242218171.923-25.741
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 RevenueFromContractWithCustomerIncludingAssessedTax768.1547.1775.3960.1892.8937.7901.41006.41050.1929.3399.8765.1857.1734.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap: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
Value54466772726664697363
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax768.1547.1775.3960.1892.8937.7901.41006.41050.1929.3
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.0

None

us-gaap:DepreciationDepletionAndAmortization

us-gaap:DepreciationDepletionAndAmortization


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
Value1.8911.7971.7471.7011.6821.6261.7211.7251.8592.0091.8491.9121.7351.7691.8061.8231.9381.923-14.756154.9351.9291.9572.015
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1801000.01543000.01789000.02274000.01534000.01998000.01922000.02555000.01499000.01285000.01342000.01924000.01183000.01159000.01181000.01045000.01578000.01027000.01185000.01168000.01570000.01242000.0951000.0644000.01353000.0438000.0908000.0830000.01037000.0261000.0652000.0603000.0546000.0480000.0407000.0408000.0463000.0647000.0775000.0778000.01137000.0
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value107-361.521-382.015-185.629-440.365-373.665-328.179-126.495-582.653-97.0-65.566279-352.744-85.401-427.275-653.697-226.97824-518.714-292.74612-379.05978-76.58-161.902-299.725-228.229-125.993-138.308180-59.382-53.176-60.261126-407.387242102189437121442-405.071
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax1524.2-4221.9-4396.0-2447.0-5442.0-5254.7-4575.8-1825.1-8305.8-1412.6-1010.64291.7-5880.0-1282.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


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
Value2.4490.8672.0082.431.1931.5022.1741.792.0680.6382.212-0.7420.7021.0160.3571.3090.7941.0630.891.2450.8210.5620.7410.7191.2362.0811.4482.1031.6171.0140.7960.6970.710.9050.8930.3250.6011.0690.4952.3031.2980.883
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value888172393023732242542151971951930810-333.169377549213-52.868449284-58.768328-148.309-6.33222526115717681-209.95351-85.20741-99.025110-53.476-113.115-214.719-439.027-171.208-472.857305
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax12566.42017.1453.63991.94614.33157.93545.03104.72820.72853.9300.04739.0173.5-5002.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:PaymentsOfDividends

us-gaap:PaymentsOfDividends


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312011-03-312010-03-31
Value2424242424242419191919161616161414141411117.9837.9715.5775.5763.983.9752.42.4033.8280.7860.785
Percentage of PaymentsOfDividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302016-12-312016-09-302016-06-302016-03-312015-12-31
Value0.0120.04.692238.601420.00.00.00.0548.711
Percentage of PaymentsForRepurchaseOfCommonStock0.0100.00.0100.0100.0100.0100.00.00.00.00.0100.0100.0

None

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:EffectiveIncomeTaxRateContinuingOperations


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
Value-0.0520.163-0.0020.011-0.0260.2180.0050.011-0.0490.228-0.0040.414-0.0310.295-0.0080.255-0.0280.3290.006-0.012-0.0960.37300.0050.0040.364-0.0010.002-0.0060.369-0.0030.002-0.0030.364
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:AccretionAmortizationOfInvestments

caty:AccretionAmortizationOfInvestments


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
Value1213127.089.11710355.789-0.393-0.0121.7941.0961.4950.1871.6152.018231.3048.065160.1030.224
Percentage of AccretionAmortizationOfInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:AmortizationOfRightOfUseAssetOperatingLease

caty:AmortizationOfRightOfUseAssetOperatingLease


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value2134000.02115000.02118000.02102000.02075000.02071000.000
Percentage of AmortizationOfRightOfUseAssetOperatingLease100.0100.0100.0100.0100.0100.00.00.0

caty:AverageReserveBalancesRequiredToBeMaintainedWithFederalBank

caty:AverageReserveBalancesRequiredToBeMaintainedWithFederalBank


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-0.1030.2220.11-0.0170.1610.0
Percentage of AverageReserveBalancesRequiredToBeMaintainedWithFederalBank100.0100.0100.0100.0100.00.0

caty:AverageSharesOfStockOptionsAndRestrictedStockUnitsWithAntiDilutiveEffect

caty:AverageSharesOfStockOptionsAndRestrictedStockUnitsWithAntiDilutiveEffect


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value126080.047399.032321.066339.044545.01854.06521.038906.0-3334.0-10005.019900.0
Percentage of AverageSharesOfStockOptionsAndRestrictedStockUnitsWithAntiDilutiveEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:BenefitShortfallOfTaxDeductionsFromSharebasedCompensation

caty:BenefitShortfallOfTaxDeductionsFromSharebasedCompensation


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value100000.0300000.0-5400000.05500000.0500000.00100000.0700000.0002600000.00-68000.0-3298000.0254000.017000.0-1224000.0-4395000.0
Percentage of BenefitShortfallOfTaxDeductionsFromSharebasedCompensation100.0100.0100.0100.0100.00.0100.0100.00.00.0100.00.0100.0100.0100.0100.0100.0100.0

caty:ChangeInOperatingLeaseLiabilities

caty:ChangeInOperatingLeaseLiabilities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value1618000.0-1083000.0-1859000.0-1821000.0-1675000.0-1802000.000
Percentage of ChangeInOperatingLeaseLiabilities100.0100.0100.0100.0100.0100.00.00.0

caty:DepositoryServiceFees

caty:DepositoryServiceFees


None
Period End2020-06-302020-03-312019-06-302019-03-31
Value1117000.01298000.01243000.01255000.0
Percentage of DepositoryServiceFees100.0100.0100.0100.0

caty:DividendIncomeFromFederalHomeLoanBankStock

caty:DividendIncomeFromFederalHomeLoanBankStock


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
Value214000.0305000.0304000.0301000.0298000.0304000.0584000.0303000.0380000.0396000.0481000.0607000.0298000.0412000.0977000.0393000.0382000.0347000.0382000.0524000.01677000.0581000.0595000.0508000.0421000.0450000.0439000.0449000.0342000.0250000.0295000.057000.067000.066000.043000.038000.049000.047000.066000.077000.046000.048000.0
Percentage of DividendIncomeFromFederalHomeLoanBankStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:FinancingReceivableAllowanceForCreditLossesNetChargeOffs

caty:FinancingReceivableAllowanceForCreditLossesNetChargeOffs


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302011-12-312011-09-302011-06-302010-12-312010-09-302010-06-30
Value-3.5930.0492.3165.2570.0960.164-1.0663.058-0.1851.8051.7445.7260.265-0.9221.024-5.006-6.4546.089-8.113-2.111-0.502-0.331-5.7785.2223.6394.6329-21.7572218-22.559
Percentage of FinancingReceivableAllowanceForCreditLossesNetChargeOffs100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:FinancingReceivableAllowanceForCreditLossesNetChargeOffs us-gaap:FinancingReceivablePortfolioSegment

caty:RealEstateConstructionPortfolioSegment


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
Value0.00.00.03.3780.031.0440.0450.0440.0440.0440.0860.0470.0470.0490.0460.5480.0477.2760.0390.0410.0520.045-2.4440.032-1.813
Percentage of FinancingReceivableAllowanceForCreditLossesNetChargeOffs-0.00.00.064.331.2636.6-4.21.4-23.82.44.90.817.7-5.34.5-10.9-0.7119.5-0.5-1.9-10.4-13.642.30.6-49.8

caty:ResidentialMortgageAndEquityLinesPortfolioSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value0.0680.0070.350.0620.1620.158-0.0580.005-0.170.084-0.0030.0070.0070.0080.0060.006-0.137-0.1140.001-0.013-0.1290.131
Percentage of FinancingReceivableAllowanceForCreditLossesNetChargeOffs-1.914.315.11.2168.896.35.40.291.94.7-0.20.12.6-0.9-0.1-0.1-2.21.4-0.02.639.0-2.3

us-gaap:CommercialPortfolioSegment


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-3.756-0.1131.849-3.144-0.357-1.190.6250.065-0.3380.8940.4980.495-0.192-0.713-0.496-1.271-5.961-1.083-8.138-2.703-2.3491.4111.3823.8964.568
Percentage of FinancingReceivableAllowanceForCreditLossesNetChargeOffs104.5-230.679.8-59.8-371.9-725.6-58.62.1182.749.528.68.6-72.577.3-48.425.492.4-17.8100.3128.0467.9-426.3-23.974.6125.5

us-gaap:CommercialRealEstatePortfolioSegment


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
Value0.0950.1550.1174.9610.2610.152-1.6782.9440.2790.7831.1565.1770.403-0.2661.349-4.289-0.5460.0330.10.551.807-1.658-4.861.2940.884
Percentage of FinancingReceivableAllowanceForCreditLossesNetChargeOffs-2.6316.35.194.4271.992.7157.496.3-150.843.466.390.4152.128.9131.785.78.50.5-1.2-26.1-360.0500.984.124.824.3

caty:ForeclosedRealEstateExpenseIncome

caty:ForeclosedRealEstateExpenseIncome


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
Value452000.0-4104000.0276000.0190000.0369000.0280000.0-483000.0-21000.0-3000.0-212000.0-2396000.0369000.0317000.061000.0244000.0-176000.0493000.0295000.0253000.0250000.0-1786000.0483000.0
Percentage of ForeclosedRealEstateExpenseIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:InterestExpenseDeferredPaymentsFromAcquisition

caty:InterestExpenseDeferredPaymentsFromAcquisition


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
Value42000.058000.066000.093000.0192000.0217000.0144000.0399000.0271000.0276000.0960000.0901000.0
Percentage of InterestExpenseDeferredPaymentsFromAcquisition100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:LetterOfCreditCommissions

caty:LetterOfCreditCommissions


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
Value1560000.01640000.01674000.01602000.01577000.01554000.01504000.01459000.01376000.01275000.01242000.01302000.01193000.01123000.01241000.01212000.01205000.01281000.01431000.01455000.01391000.01268000.01496000.01559000.01520000.01468000.01673000.01698000.01449000.01461000.01443000.01728000.01619000.01526000.01531000.01440000.01395000.01278000.01186000.01253000.01068000.0959000.0
Percentage of LetterOfCreditCommissions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:NetChangeInUnrealizedHoldingLossGainOnSecuritiesAvailableForSaleNetOfTax

caty:NetChangeInUnrealizedHoldingLossGainOnSecuritiesAvailableForSaleNetOfTax


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-1.289112.1871.318118.7998.844-2.528-2.751-11.514-3.1071.0462.772-0.226-10.041-0.0433.49710-7.0492.744-4.4656.5115.5-0.039137.639-8.546-6.11-38.5523-1.4825.6350.8494.195-3.241-9.8728.974-3.571-25.340.087178.049
Percentage of NetChangeInUnrealizedHoldingLossGainOnSecuritiesAvailableForSaleNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:NetIncreaseInInvestmentInAffordableHousingInvestingAndAlternativeEnergyPartnerships

caty:NetIncreaseInInvestmentInAffordableHousingInvestingAndAlternativeEnergyPartnerships


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
Value19181612121029178.52810194.18217-0.565-23.122-12.424-25.094-22.326-6.886-26.759-18.239-1.351-1.828-2.029
Percentage of NetIncreaseInInvestmentInAffordableHousingInvestingAndAlternativeEnergyPartnerships100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:NoninteresIncomeNotInscope

caty:NoninteresIncomeNotInscope


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
Value8.534-2.777-0.0422.8024.7025.813.6230.9040.752-1.5573.9786.4590.1530.058
Percentage of NoninteresIncomeNotInscope100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:OperationsOfAffordableHousingInvestmentsNetAndAlternativeEnergyPartnershipsNet

caty:OperationsOfAffordableHousingInvestmentsNetAndAlternativeEnergyPartnershipsNet


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312016-03-312015-03-31
Value1213126.9979.1021018115.1135.7612.7942.383
Percentage of OperationsOfAffordableHousingInvestmentsNetAndAlternativeEnergyPartnershipsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:PeriodicNetSettlementOnInterestRateSwapsExpense us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation

caty:PeriodicNetSettlementOnInterestRateSwapsExpense

us-gaap:InterestRateSwap, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument


None
Period End2020-06-302020-03-312019-06-302019-03-31
Value514000.0255000.08000.0-45000.0
Percentage of PeriodicNetSettlementOnInterestRateSwapsExpense100.0100.0100.0100.0

caty:PeriodicNetSettlementsOnInterestRateSwapsIncome

caty:PeriodicNetSettlementsOnInterestRateSwapsIncome


None
Period End2020-06-302020-03-312019-06-302019-03-31
Value-2154000.0-643000.0534000.0613000.0
Percentage of PeriodicNetSettlementsOnInterestRateSwapsIncome100.0100.0100.0100.0

caty:ProceedsFromSaleOfLoansOperatingActivities

caty:ProceedsFromSaleOfLoansOperatingActivities


None
Period End2020-06-302020-03-312019-06-302019-03-31
Value2.6110.2390.00.0
Percentage of ProceedsFromSaleOfLoansOperatingActivities100.0100.00.00.0

caty:ProvisionReversalForLossesOnOtherRealEstateOwned

caty:ProvisionReversalForLossesOnOtherRealEstateOwned


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
Value0.3810.3360.1870.00.4220.0720.00.0-0.0330.033-0.1980.4060.2110.2720.0-0.2070.2550.1280.00.1790.1870.181-0.0740.0770.9990.617
Percentage of ProvisionReversalForLossesOnOtherRealEstateOwned100.0100.0100.00.0100.0100.00.00.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0

caty:TroubledDebtRestructuringsNewRestructurings us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

caty:TroubledDebtRestructuringsNewRestructurings

caty:AccruingTroubledDebtRestructuring


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312015-09-302015-06-302014-12-312014-09-302014-06-30
Value1.90.5340.00.24131.9481.0782.5895.1271723210.5276.553182.0650.8990.4275.7980.743140.722
Percentage of TroubledDebtRestructuringsNewRestructurings100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:NonaccruingTroubledDebtRestructuring


None
Period End2020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312016-09-302016-06-302015-12-312015-09-30
Value0.00.0427.3453.160.02.7840.00.2311.6492.363.1460.6493.1450.01.796
Percentage of TroubledDebtRestructuringsNewRestructurings0.00.03060.423.90.0107.50.01.37.010.848.03.5152.30.0420.6

caty:TroubledDebtRestructuringsPaymentsReceivedInPeriod us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

caty:TroubledDebtRestructuringsPaymentsReceivedInPeriod

caty:AccruingTroubledDebtRestructuring


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312014-09-302014-06-30
Value4.5931.5066.676229.9984.07110132.8553.89112351.14.595146.51.5051.8119.144116.181.3593.6071.278
Percentage of TroubledDebtRestructuringsPaymentsReceivedInPeriod100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:NonaccruingTroubledDebtRestructuring


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
Value0.2490.1591.4167.6264.4890.4811.3434.8361.2571.6616.1811.9332.2370.996.2211.8141.1056.4111.8841.8591.457
Percentage of TroubledDebtRestructuringsPaymentsReceivedInPeriod5.410.621.234.444.911.812.737.044.042.748.65.4203.421.543.327.973.4354.020.616.523.6

caty:TroubledDebtRestructuringsRestructuredLoansPlacedOnNonaccrual us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

caty:TroubledDebtRestructuringsRestructuredLoansPlacedOnNonaccrual

caty:AccruingTroubledDebtRestructuring


None
Period End2020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312015-09-302014-12-312014-09-302014-06-30
Value-0.00.00.0-1.296-4.1960.00.571.528-23.3153.5740.05.822120.01.1380.001-0.001170.07.23
Percentage of TroubledDebtRestructuringsRestructuredLoansPlacedOnNonaccrual0.00.00.0100.0100.00.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.00.0100.0

caty:NonaccruingTroubledDebtRestructuring


None
Period End2020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value-0.00.00.01.2960.00.00.571.5284.5233.5740.05.8223.6810.00.0109.4660.723
Percentage of TroubledDebtRestructuringsRestructuredLoansPlacedOnNonaccrual0.00.00.0-100.0-0.00.0100.0100.0-19.4100.00.0100.028.70.00.00.0946600.0-72300.0

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-2277000.0-1676000.0-1458000.0-1211000.0-726000.0-439000.0-647000.0-652000.0-837000.0-882000.0-1955000.0303000.0-566000.0-727000.0-1178000.0-1789000.0-1877000.0-1527000.0-1598000.0-1772000.0-1268000.0-502000.0-583000.0-543000.0-856000.0-867000.0-986000.0-1106000.0-1219000.0-1114000.0-1506000.0-1257000.0-3857000.01314000.0-1330000.0-951000.0-716000.0-1236000.0-2594000.0-1698000.0-1198000.0-1177000.0
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:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1376000.0523000.011000.00707000.01593000.0575000.00327000.01538000.0
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.00.0100.0100.0100.00.0100.0100.0

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation us-gaap:StatementEquityComponents

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
Value1376000.0523000.011000.00707000.01593000.0575000.00327000.01538000.0
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.00.0100.0100.0100.00.0100.0100.0

us-gaap:AssetImpairmentCharges

us-gaap:AssetImpairmentCharges


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
Value0.4520.3690.1330.2030.4380.074-0.6150.0620.0580.206-0.170.4170.8750.4940.879-0.0191.1550.238-2.4850.8352.7210.6093.4380.5480.3160.2943.130.749-1.0970.767-2.1365.1485.416
Percentage of AssetImpairmentCharges100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetImpairmentCharges us-gaap:FairValueByAssetClass

caty:ImpairedLoans


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-06-302015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302013-06-302012-12-312012-09-302012-06-30
Value0.00.00.00.00.00.00.00.00.00.0-1.4980.4970.270.945-2.630.5752.5740.2043.3940.5470.0174.8830.5540.096-2.6592.2340.42
Percentage of AssetImpairmentCharges0.00.00.00.00.00.0-0.00.00.0-0.0-359.256.854.781.8105.868.994.633.598.799.85.4156.074.0-8.8124.543.47.8

caty:InvestmentsInVentureCapital


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value0.0710.0330.0660.0830.0160.0020.0040.0620.0910.1730.110.1450.0810.1030.2240.1190.0490.1570.1110.1140.0840.1190.0920.0830.0390.05
Percentage of AssetImpairmentCharges15.78.949.640.93.72.7-0.7100.0156.984.046.2-5.89.73.836.83.58.949.737.83.611.2-10.812.0-3.90.80.9

caty:OtherRealEstateOwned


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
Value0.3810.3360.1870.00.4220.072-0.6190.0-0.0330.033-0.1970.4050.2120.0370.0-0.2060.0880.1280.00.1790.0440.181-0.075-0.0480.1420.183-1.8670.111-1.312-0.0660.3022.8754.903
Percentage of AssetImpairmentCharges84.391.1140.60.096.397.3100.70.0-56.916.0115.997.124.27.50.01084.27.653.8-0.021.41.629.7-2.2-8.844.962.2-59.614.8119.6-8.6-14.155.890.5

us-gaap:AssetImpairmentCharges us-gaap:FairValueByAssetClass, us-gaap:FinancingReceivablePortfolioSegment

caty:ImpairedLoans, caty:ResidentialMortgageAndEquityLinesPortfolioSegment


None
Period End2020-06-302020-03-312019-06-302019-03-312015-12-312015-09-302014-12-312014-09-30
Value0.00.00.00.00.00.0-0.0050.032
Percentage of AssetImpairmentCharges0.00.00.00.0-0.00.0-0.15.8

caty:ImpairedLoans, us-gaap:CommercialPortfolioSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312015-12-312015-09-302015-06-302014-12-312014-09-302014-06-30
Value0.00.00.00.00.00.00.00.00.00.0-1.2480.4970.02-2.5740.5752.5740.00.00.017
Percentage of AssetImpairmentCharges0.00.00.00.00.00.0-0.00.00.0-0.0-299.356.84.0103.668.994.60.00.05.4

caty:ImpairedLoans, us-gaap:CommercialRealEstatePortfolioSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-06-302017-03-312016-06-302015-12-312015-09-302014-12-312014-09-30
Value0.00.00.00.00.00.00.00.00.00.00.250.945-0.0560.03.3990.515
Percentage of AssetImpairmentCharges0.00.00.00.00.00.0-0.00.00.00.050.681.82.30.098.994.0

us-gaap:ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1

us-gaap:ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1


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-235000.0-4278000.0948000.0-793000.0-2102000.0-1224000.0-3070000.01666000.0736000.02193000.0813000.0157000.0-550000.0299000.04423000.0-8000000.07522000.0-3120000.01220000.0-2558000.02328000.0-1588000.0-2234000.0100000.0
Percentage of ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1 us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation

us-gaap:InterestRateSwap, us-gaap:FairValueHedging, us-gaap:DesignatedAsHedgingInstrument


None
Period End2020-06-302020-03-31
Value-491000.0-18176000.0
Percentage of ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1208.9424.9

us-gaap:CommonStockDividendsPerShareCashPaid

us-gaap:CommonStockDividendsPerShareCashPaid


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value0.310.310.310.310.310.310.310.240.240.240.240.210.210.210.210.180.180.180.180.140.140.10.10.070.070.050.010.010.010.010.010.010.010.010.010.010.010.01
Percentage of CommonStockDividendsPerShareCashPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStockDividendsPerShareCashPaid us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.310.310.310.310.310.310.240.240.24
Percentage of CommonStockDividendsPerShareCashPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtSecuritiesGainLoss

us-gaap:DebtSecuritiesGainLoss


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
Value1147000.06000.0319000.0-121000.013000.0036000.0-14000.001445000.024000.0
Percentage of DebtSecuritiesGainLoss100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0

us-gaap:DividendsCommonStockCash

us-gaap:DividendsCommonStockCash


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value24242424242424191919
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsCommonStockCash 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
Value24242424242424191919
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquipmentExpense

us-gaap:EquipmentExpense


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
Value2.5812.5932.662.7412.8332.8792.9252.7722.6113.0942.9512.6432.5282.7242.4172.3372.4432.581.0453.8932.2922.5022.4862.4712.5342.3022.282.4462.3662.6762.3972.342.3912.4632.0712.1392.1152.1832.0982.0112.1082.013
Percentage of EquipmentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquitySecuritiesFvNiGainLoss

us-gaap:EquitySecuritiesFvNiGainLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value5779000.0-6102000.0-2028000.0364000.03237000.04163000.01793000.0391000.0-1124000.0-3847000.0
Percentage of EquitySecuritiesFvNiGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss

us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value5800000.0-6102000.0-2028000.0400000.03200000.04163000.01793000.0391000.0-1124000.0-3847000.0
Percentage of EquitySecuritiesFvNiUnrealizedGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FederalDepositInsuranceCorporationPremiumExpense

us-gaap:FederalDepositInsuranceCorporationPremiumExpense


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
Value2.4462.4152.4272.5822.1322.4761.2682.5552.1422.0353.3722.5522.1892.522.0722.2882.7632.5892.182.4032.2442.262.1042.2612.2772.1541.921.7121.9811.7381.7852.0941.9712.4892.632.6422.9054.3174.0224.5995.7845.144
Percentage of FederalDepositInsuranceCorporationPremiumExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableAllowanceForCreditLossesRecovery

us-gaap:FinancingReceivableAllowanceForCreditLossesRecovery


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
Value1.5131.373.0138.6131.8091.3951.1213.180.6931.8243.2476.1110.7920.8372.0622.8971.1798.4181.7861.2962.1564.1333.7256.3776.214
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableAllowanceForCreditLossesRecovery us-gaap:FinancingReceivablePortfolioSegment

caty:RealEstateConstructionPortfolioSegment


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
Value0.00.00.03.3780.031.0440.0450.0440.0440.0440.0860.0470.0470.0490.0460.5480.0477.2760.0390.0410.0520.0452.490.032
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery0.00.00.039.21.774.84.01.46.32.42.60.85.95.92.218.94.086.42.23.22.41.166.80.5

caty:ResidentialMortgageAndEquityLinesPortfolioSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value0.0680.0070.350.0620.1620.1580.1710.0050.0590.084-0.0030.0070.0070.0080.0060.0060.0120.010.0010.0010.0190.2860.0
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery4.50.511.60.79.011.315.30.28.54.6-0.10.10.91.00.20.50.10.60.10.00.57.70.0

us-gaap:CommercialPortfolioSegment


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
Value1.351.2082.5460.2121.3560.0410.6250.1870.150.9132.0010.5750.3350.4910.4242.0060.7270.9871.5340.6070.2312.2751.6654.1484.682
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery89.288.284.52.575.02.955.85.921.650.161.69.442.358.720.669.261.711.785.946.810.755.044.765.075.3

us-gaap:CommercialRealEstatePortfolioSegment


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
Value0.0950.1550.1174.9610.2610.1520.282.9440.440.7831.1565.4820.4030.2891.6160.3370.3990.1430.2030.6471.8721.794-0.7292.1971.532
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery6.311.33.957.614.410.925.092.663.542.935.689.750.934.578.411.633.81.711.449.986.843.4-19.634.524.7

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302011-12-312011-09-302011-06-302010-12-312010-09-302010-06-30
Value5.1061.3210.6973.3561.7131.2312.1870.1220.8780.0191.5030.3850.5271.7591.0387.9037.6332.3299.8993.4072.6584.4649.5031.1552.575-148.36230-26.921-251.96621-27.847
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs us-gaap:FinancingReceivablePortfolioSegment

caty:RealEstateConstructionPortfolioSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302015-09-302014-12-312014-09-302014-06-30
Value-0.0-0.00.0-0.0-0.0-0.00.0-0.0-0.00.04.9340.01.813
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs-0.0-0.00.0-0.0-0.0-0.00.0-0.0-0.00.051.90.070.4

caty:ResidentialMortgageAndEquityLinesPortfolioSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value-0.0-0.00.0-0.0-0.0-0.00.229-0.00.2290.001-0.0010.1490.1240.00.0130.1480.1550.0
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs-0.0-0.00.0-0.0-0.0-0.010.5-0.026.10.0-0.06.41.30.00.53.31.60.0

us-gaap:CommercialPortfolioSegment


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
Value5.1061.3210.6973.3561.7131.2310.00.1220.4880.0191.5030.080.5271.2040.923.2776.6882.079.6723.312.580.8640.2830.2520.114
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs100.0100.0100.0100.0100.0100.00.0100.055.6100.0100.020.8100.068.488.641.587.688.997.797.297.119.43.021.84.4

us-gaap:CommercialRealEstatePortfolioSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value-0.0-0.00.0-0.0-0.0-0.01.958-0.00.1610.00.3050.00.5550.2674.6260.9450.110.1030.0970.0653.4524.1310.9030.648
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs-0.0-0.00.0-0.0-0.0-0.089.5-0.018.30.079.20.031.625.758.512.44.71.02.82.477.343.578.225.2

us-gaap:FinancingReceivableModificationsNumberOfContracts2

us-gaap:FinancingReceivableModificationsNumberOfContracts2


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
Value1.02.01.03.019.01.02.06.015.011.010.014.01.02.016.08.06.001.017.046.08.0
Percentage of FinancingReceivableModificationsNumberOfContracts2100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0

us-gaap:FinancingReceivableModificationsNumberOfContracts2 us-gaap:FinancingReceivablePortfolioSegment

us-gaap:CommercialPortfolioSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302015-12-312015-09-302014-12-312014-09-30
Value1.02.003.019.01.02.03.015.03.03.08.01.013.07.04.002.0-2.03.0
Percentage of FinancingReceivableModificationsNumberOfContracts2100.0100.00.0100.0100.0100.0100.050.0100.027.330.057.1100.081.287.566.70.011.8-4.337.5

us-gaap:FinancingReceivableModificationsPostModificationRecordedInvestment2

us-gaap:FinancingReceivableModificationsPostModificationRecordedInvestment2


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312015-09-302014-12-312014-09-30
Value1.90.534116.165151.6221.0795.3735.1271725230.5279.698185.2110.92.2240.25414
Percentage of FinancingReceivableModificationsPostModificationRecordedInvestment2100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableModificationsPostModificationRecordedInvestment2 us-gaap:FinancingReceivablePortfolioSegment

us-gaap:CommercialPortfolioSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302015-12-312015-09-302014-12-312014-09-30
Value1.90.534116.165151.6221.0784.6215.1272.46310180.56.283184.8440.0250.306-0.2342.283
Percentage of FinancingReceivableModificationsPostModificationRecordedInvestment2100.0100.099.6100.0100.0100.099.986.0100.014.040.081.4100.064.896.193.02.813.8-92.115.3

us-gaap:FinancingReceivableModificationsPreModificationRecordedInvestment2

us-gaap:FinancingReceivableModificationsPreModificationRecordedInvestment2


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312015-09-302014-12-312014-09-30
Value1.90.5340.0427.585161.9481.0795.3735.1271725230.52710185.2110.8992.2240.25414
Percentage of FinancingReceivableModificationsPreModificationRecordedInvestment2100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableModificationsPreModificationRecordedInvestment2 us-gaap:FinancingReceivablePortfolioSegment

us-gaap:CommercialPortfolioSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302015-12-312015-09-302014-12-312014-09-30
Value1.90.5340.07.585161.9481.0784.6215.1272.46310180.57.113184.8440.0250.306-0.2342.283
Percentage of FinancingReceivableModificationsPreModificationRecordedInvestment2100.0100.00.0100.0100.0100.099.986.0100.014.040.080.4100.067.696.193.02.813.8-92.115.3

us-gaap:FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown

us-gaap:FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302015-12-312015-09-302012-03-312011-12-31
Value0.00.04.0630.00.8110.00.00.00.00.00.3050.6040.04950001.796
Percentage of FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown0.00.0100.00.0100.00.00.00.00.00.0100.0100.00.0100.0100.0

us-gaap:FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown us-gaap:FinancingReceivablePortfolioSegment

us-gaap:CommercialPortfolioSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-06-302017-03-31
Value0.00.04.0630.00.8110.00.00.00.00.51.6
Percentage of FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown0.00.0100.00.0100.00.00.00.00.00.00.0

us-gaap:FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

caty:NonaccruingTroubledDebtRestructuring


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312015-09-302015-06-30
Value4.97-0.00.02.3890.8110.4072.186-0.00.161-0.2510.3550.4971.0490.9193.4070.9450.00.0030.489
Percentage of FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown0.00.00.00.0100.00.00.00.00.00.0116.40.00.00.00.00.00.00.00.0

us-gaap:GainLossOnSalesOfLoansNet

us-gaap:GainLossOnSalesOfLoansNet


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
Value82000.03000.04000.0800000.000-567000.0108000.0201000.0258000.0-394000.077000.098000.0219000.0084000.099000.0102000.0-59000.082000.0167000.0596000.095000.084000.088000.0128000.01743000.0-30000.0-267000.0-567000.015000.05000.0891000.0-278000.0-2763000.01592000.0
Percentage of GainLossOnSalesOfLoansNet100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainsLossesOnSalesOfOtherRealEstate

us-gaap:GainsLossesOnSalesOfOtherRealEstate


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value16000.04538000.019000.00212000.0-19000.0620000.0108000.0201000.0258000.02267000.077000.098000.0219000.070000.0248000.06000.03000.02157000.0-154000.0598000.01094000.01814000.0559000.0950000.0289000.0598000.0-44000.0-331000.01432000.0-1444000.0712000.0401000.0320000.0917000.03605000.02928000.03030000.02651000.01368000.0
Percentage of GainsLossesOnSalesOfOtherRealEstate100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ImpairedFinancingReceivableAverageRecordedInvestment

us-gaap:ImpairedFinancingReceivableAverageRecordedInvestment


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
Value9280971181151231331251271370.118213133132137160169175190192195216219244263274314332395397370378
Percentage of ImpairedFinancingReceivableAverageRecordedInvestment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ImpairedFinancingReceivableAverageRecordedInvestment us-gaap:FinancingReceivablePortfolioSegment

caty:RealEstateConstructionPortfolioSegment


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-30
Value4.4584.5064.6624.7264.8155.988.3788.13729420.016935.8699.923202220223333
Percentage of ImpairedFinancingReceivableAverageRecordedInvestment4.85.64.84.04.24.86.36.523.431.114.34.47.514.814.012.313.117.417.2

caty:ResidentialMortgageAndEquityLinesPortfolioSegment


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-30
Value171113121313141313150.0165431817161617171618
Percentage of ImpairedFinancingReceivableAverageRecordedInvestment19.214.213.510.911.511.111.010.911.011.014.013.712.912.410.310.19.88.59.6

us-gaap:CommercialPortfolioSegment


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-30
Value332838463748464524190.0233352814122325252127
Percentage of ImpairedFinancingReceivableAverageRecordedInvestment36.635.339.839.433.039.434.936.019.614.119.721.111.29.214.915.114.411.414.5

us-gaap:CommercialRealEstatePortfolioSegment


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-30
Value363640545955645858606181908797105110119112
Percentage of ImpairedFinancingReceivableAverageRecordedInvestment39.344.941.945.851.344.747.846.646.043.851944.460.868.463.660.862.562.762.758.8

us-gaap:ImpairedFinancingReceivableInterestIncomeAccrualMethod

us-gaap:ImpairedFinancingReceivableInterestIncomeAccrualMethod


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
Value0.5730.6980.1240.6181.1160.947-0.0221.1451.2241.0780.9531.2640.9940.0010.2531.161.021.2070.7761.1521.1791.3350.8321.5521.3481.521.4891.0691.7631.8953.0032.2462.031.561-0.0481.6561.4491.6936.9811.2340.795
Percentage of ImpairedFinancingReceivableInterestIncomeAccrualMethod100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ImpairedFinancingReceivableInterestIncomeAccrualMethod us-gaap:FinancingReceivablePortfolioSegment

caty:RealEstateConstructionPortfolioSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-09-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value0.0490.0980.00.00.00.00.00.00.0-0.2870.0990.3560.340.0660.0650.0650.0660.0650.0650.0660.0660.066
Percentage of ImpairedFinancingReceivableInterestIncomeAccrualMethod8.614.00.00.00.00.0-0.00.00.0-30.17.835.834000.05.75.48.45.75.54.97.94.34.9

caty:ResidentialMortgageAndEquityLinesPortfolioSegment


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
Value0.0780.0710.0690.0780.0810.0880.0770.1080.0930.10.0940.0960.1070.0001320.080.1480.140.1320.1020.1390.120.1240.0990.1280.093
Percentage of ImpairedFinancingReceivableInterestIncomeAccrualMethod13.610.255.612.67.39.3-350.09.47.69.39.97.610.813.231.612.813.710.913.112.110.29.311.98.26.9

us-gaap:CommercialPortfolioSegment


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
Value0.0710.07-0.2930.2080.5870.256-0.4670.4610.4980.3340.5430.6780.0860.0830.2790.170.1670.120.0270.170.2010.2290.2420.2050.194
Percentage of ImpairedFinancingReceivableInterestIncomeAccrualMethod12.410.0-236.333.752.627.02122.740.340.731.057.053.68.78300.0110.314.716.49.93.514.817.017.229.113.214.4

us-gaap:CommercialRealEstatePortfolioSegment


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
Value0.3750.4590.3320.3320.4480.6030.3680.5760.6330.6440.6030.3910.4450.0004450.090.7760.7130.890.5820.7770.7930.9170.4251.1530.995
Percentage of ImpairedFinancingReceivableInterestIncomeAccrualMethod65.465.8267.753.740.163.7-1672.750.351.759.763.330.944.844.535.666.969.973.775.067.467.368.751.174.373.8

us-gaap:IncomeTaxesPaid

us-gaap:IncomeTaxesPaid


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
Value292.642189.7312.51716273.658143214156.9541.019254.7891.2982431117.361122812-0.01627198.562112717-20.424139.09.1521173.00.2-7.142
Percentage of IncomeTaxesPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInDeferredIncomeTaxes

us-gaap:IncreaseDecreaseInDeferredIncomeTaxes


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
Value4.7470.1490.086-1.319-4.259-4.333-0.0010.091.165-3.597-24.2351.9082.056-14.2836.534-15.3856.217-13.31512-5.53-1.957-6.84-17.458-3.363-4.471-6.0122.789-4.19822-6.2271.117-5.802-2.4552.356-9.4284.684-3.639-5.42523-5.693.27217
Percentage of IncreaseDecreaseInDeferredIncomeTaxes100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap: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
Value11913973429527638312147692322128284-123.895-87.333736467147-184.803270479225329881143482516220728442164221150887288-42.787622875141-21.856
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: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
Value14-4.126-37.803-14.65261-14.7876.121-0.1815-7.87-77.52352-6.225.617-11.377-6.791-2.6387.328-27.51521-6.6314.467-8.3359.929-3.2851.3510-31.768-4.081-8.61815-81.84387.961-13.96-0.4346.967-19.035-8.1758.422-15.806
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:IncreaseDecreaseInOtherOperatingLiabilities

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities


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
Value1.331-2.661-43.1251359-9.2092.85112.866-2.995-3.469-1.00414-12.9261.7532.675-0.005-7.207-6.074-8.009-2.8021.379-2.879-1.848-7.9031.374-9.168-0.833.4131.612-0.891-0.029-3.6522.316-0.468-4.1328.0480.298-0.991-9.056-1.209-2.112
Percentage of IncreaseDecreaseInOtherOperatingLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:RestrictedStockUnitsRSU


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-30
Value101330.0241950.0257020.0196350.0247820.0309270.0260590.0261610.0320280.0287570.0259090.0165410.0141990.0123940.079477.053525.020379.042244.032243.043392.048434.030817.019577.01908.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InformationTechnologyAndDataProcessing

us-gaap:InformationTechnologyAndDataProcessing


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
Value3.5663.6663.4733.2463.0813.412.9883.083.1513.2193.3442.9182.3962.5322.4012.2792.0272.251.8761.8951.9451.982
Percentage of InformationTechnologyAndDataProcessing100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestAndDividendIncomeOperating

us-gaap:InterestAndDividendIncomeOperating


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value174186191197192187183176167159155154135130130124121122119116112104106106105101101102100102105106107110111114114113118120124126
Percentage of InterestAndDividendIncomeOperating100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm

us-gaap:InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm


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
Value1.3161.5521.4651.6611.7252.590.4531.430.8850.9711.2470.8720.3050.2880.2170.1340.2020.1060.1130.1640.1170.0930.0960.1530.4970.1990.1530.150.1450.080.0740.0740.0690.053
Percentage of InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseOtherDomesticDeposits

us-gaap:InterestExpenseOtherDomesticDeposits


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value5.9197.9917.726.6265.5885.3775.6115.4744.832
Percentage of InterestExpenseOtherDomesticDeposits100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseOtherLongTermDebt

us-gaap:InterestExpenseOtherLongTermDebt


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1440000.01440000.01760000.01948000.02007000.02132000.02258000.02220000.02163000.0
Percentage of InterestExpenseOtherLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseShortTermBorrowingsExcludingFederalFundsAndSecuritiesSoldUnderAgreementsToRepurchase

us-gaap:InterestExpenseShortTermBorrowingsExcludingFederalFundsAndSecuritiesSoldUnderAgreementsToRepurchase


None
Period End2020-06-302020-03-312019-06-302019-03-31
Value5000.0229000.067000.06000.0
Percentage of InterestExpenseShortTermBorrowingsExcludingFederalFundsAndSecuritiesSoldUnderAgreementsToRepurchase100.0100.0100.0100.0

us-gaap:InterestExpenseTimeDeposits

us-gaap:InterestExpenseTimeDeposits


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
Value30353840393429221815131110101110101011109.1226.7738.9569.1178.637
Percentage of InterestExpenseTimeDeposits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestIncomeDepositsWithFinancialInstitutions

us-gaap:InterestIncomeDepositsWithFinancialInstitutions


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
Value240000.0951000.01115000.01016000.01383000.01890000.01542000.0838000.01273000.01556000.01281000.01288000.0776000.01076000.0669000.0412000.0433000.0249000.0293000.0258000.0368000.0479000.0497000.0571000.0479000.0449000.0354000.0307000.0281000.0208000.0446000.0471000.0537000.0588000.0529000.0360000.0320000.0221000.0228000.0406000.0308000.0317000.0
Percentage of InterestIncomeDepositsWithFinancialInstitutions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestIncomeExpenseAfterProvisionForLoanLoss

us-gaap:InterestIncomeExpenseAfterProvisionForLoanLoss


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
Value10911514614914314314514614013813313311711410910310611210298969289918982818579808180848477716869655529-9.279
Percentage of InterestIncomeExpenseAfterProvisionForLoanLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestIncomeSecuritiesTaxable

us-gaap:InterestIncomeSecuritiesTaxable


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
Value5.4057.618.5838.6878.4777.297.3917.5467.2086.4585.7145.6924.7194.4064.4524.855.2656.8596.2616.1425.3463.7744.8485.1056.7087.5768.426101211121517171720232122242830
Percentage of InterestIncomeSecuritiesTaxable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:MarketableSecuritiesGainLoss

us-gaap:MarketableSecuritiesGainLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1.1470.0060.319-0.1210.013-0.00.036-0.0141.4440.00.0-0.4381.7571.6920.02-0.0160.543-0.021-0.0791.1810.5065.960.2058.688126.2926.804-2.2150.8888.8335.1786.2329.650.9085.2563.439
Percentage of MarketableSecuritiesGainLoss100.0100.0100.0100.0100.00.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:MarketingExpense

us-gaap:MarketingExpense


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
Value915000.01886000.02029000.02436000.0979000.02141000.02316000.01263000.03400000.0858000.01367000.02103000.01859000.0871000.01778000.01516000.01002000.0796000.01349000.01436000.01321000.0820000.01404000.0639000.01519000.0564000.0700000.01097000.01169000.0437000.01199000.0519000.01483000.01406000.0755000.0908000.0817000.0695000.0691000.0749000.0821000.0899000.0
Percentage of MarketingExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap: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
Value676571656970746563606661565153506851535747444142424840505349494747474348454756344044
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:NoninterestIncome

us-gaap:NoninterestIncome


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
Value155.7868.648101212107.8357.7675.3110126.1526.7187.9618.8119.0577.5419.359.1565.6198.5497.9738.9749.021148.34516201412159.8528.8318.986161212163.8867.4124.784
Percentage of NoninterestIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NoninterestIncomeOtherOperatingIncome

us-gaap:NoninterestIncomeOtherOperatingIncome


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value6.0038.9447.5377.4246.7245.9496.2834.786.2746.0976.2264.7883.6124.5533.5944.5064.8125.1436.5546.3086.2676.0015.2675.7245.6895.7685.0964.9635.255.6544.6353.94.4763.7015.2485.2134.4813.7554.050.872-0.081-0.971
Percentage of NoninterestIncomeOtherOperatingIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OccupancyNet

us-gaap:OccupancyNet


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value4.9635.1775.3875.5795.4895.5494.8825.1865.175.4525.6965.3124.7224.6994.7284.7344.4844.3694.5994.4123.9864.0214.0433.9343.8963.8623.883.8123.513.6443.6823.8533.4893.5843.5163.7143.4573.5381.7562.8013.7933.838
Percentage of OccupancyNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OciBeforeReclassificationsBeforeTaxAttributableToParent us-gaap:StatementEquityComponents

us-gaap:OciBeforeReclassificationsBeforeTaxAttributableToParent

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value-0.334-6.073-1.126-2.984-1.7382.3651.0453.1130.271-0.9490.516
Percentage of OciBeforeReclassificationsBeforeTaxAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


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-0.683163.4241.75151212-3.603-3.905-16.346-3.9161.8294.786-0.856-15.5671.6187.68817
Percentage of OciBeforeReclassificationsBeforeTaxAttributableToParent204.5-277.20.0-155.4-531.7-718.70.0-152.3-373.7-525.10.0674.9-504.3-165.90.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-1.017104.770.62412108.233-1.238-2.86-13.233-2.5132.13.837-0.34-7.9363.0055.47612
Percentage of OciBeforeReclassificationsBeforeTaxAttributableToParent304.5-177.20.0-55.4-431.7-618.70.0-52.3-273.7-425.10.0774.9-404.3-65.90.00.00.00.0

us-gaap:OciBeforeReclassificationsNetOfTaxAttributableToParent us-gaap:StatementEquityComponents

us-gaap:OciBeforeReclassificationsNetOfTaxAttributableToParent

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value-0.235-4.278-0.793-2.102-1.2241.6660.7362.1930.157-0.550.299
Percentage of OciBeforeReclassificationsNetOfTaxAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


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-0.481112.4121.233118.7998.869-2.538-2.751-11.514-2.271.062.774-0.496-9.0230.9384.45610
Percentage of OciBeforeReclassificationsNetOfTaxAttributableToParent204.7-277.20.0-155.5-531.6-718.90.0-152.3-373.8-525.00.0675.2-504.4-165.90.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-0.7167.5793.360.449.0737.5755.799-0.872-2.015-9.321-1.4571.2172.224-0.197-4.61.7423.1747.234
Percentage of OciBeforeReclassificationsNetOfTaxAttributableToParent304.7-177.20.0-55.5-431.6-618.90.0-52.3-273.8-425.00.0775.2-404.4-65.90.00.00.00.0

us-gaap:OperatingLeaseExpense

us-gaap:OperatingLeaseExpense


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-31
Value2.92.93.33.43.4
Percentage of OperatingLeaseExpense100.0100.0100.0100.0100.0

us-gaap:OperatingLeasePayments

us-gaap:OperatingLeasePayments


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-31
Value2400000.02200000.02100000.02000000.02100000.0
Percentage of OperatingLeasePayments100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsTax us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsTax

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value-0.099-1.795-0.333-0.882-0.5140.6990.3090.920.114-0.3990.217
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


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-0.2024.9761.0120.5174.693.6923.722-1.065-1.154-4.832-1.6460.7692.012-0.36-6.5440.683.2327.509
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsTax204.0-277.20.0-155.3-531.7-718.30.0-152.4-373.5-525.20.0674.6-504.3-165.90.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-0.3013.1811.410.1843.8083.1782.434-0.366-0.845-3.912-1.0560.8831.613-0.143-3.3361.2632.3025.246
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsTax304.0-177.20.0-55.3-431.7-618.30.0-52.4-273.5-425.20.0774.6-404.3-65.90.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value-0.334-6.073-1.126-2.984-1.7382.3651.0453.1130.271-0.9490.516
Percentage of OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


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-1.83163.1051.871151212-3.589-3.905-16.346-5.3611.8054.783-0.39-17.324-0.0746.03318
Percentage of OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent547.9-277.10.0-166.2-531.7-718.70.0-151.8-373.7-525.10.0666.1-504.0-75.60.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-2.164104.4510.74512108.197-1.224-2.86-13.233-3.9582.0763.8340.126-9.6931.3133.82112
Percentage of OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent647.9-177.10.0-66.2-431.7-618.70.0-51.8-273.7-425.10.0766.1-404.024.40.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax

us-gaap:InterestRateSwap, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument


None
Period End2020-06-302020-03-31
Value-234000.0-7691000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax100.0100.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-1.5247.5753.1350.5259.0737.5755.774-0.862-2.015-9.324
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent us-gaap:StatementEquityComponents

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value-0.235-4.278-0.793-2.102-1.2241.6660.7362.1930.157-0.550.299
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent15.4-56.5-151.0-23.2-16.2-193.3-36.5-23.50.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


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-1.289112.1871.318118.7998.844-2.528-2.751-11.514-3.1071.0462.772-0.226-10.041-0.0433.49710
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent84.6156.569.8251.0123.2116.2153.2293.3136.5123.50.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-1.5247.5753.1350.5259.0737.5755.774-0.862-2.015-9.321-2.2941.2032.2220.073-5.6180.7612.2157.353
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossTaxPortionAttributableToParent1 us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossTaxPortionAttributableToParent1

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value-0.099-1.795-0.333-0.882-0.5140.6990.3090.920.114-0.3990.217
Percentage of OtherComprehensiveIncomeLossTaxPortionAttributableToParent1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


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-0.5414.9740.9180.5534.693.6923.711-1.061-1.154-4.832-2.2540.7592.011-0.164-7.283-0.0312.5367.596
Percentage of OtherComprehensiveIncomeLossTaxPortionAttributableToParent1546.5-277.10.0-166.1-531.7-718.30.0-151.8-373.5-525.20.0665.8-504.0-75.60.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-0.643.1791.3160.223.8083.1782.423-0.362-0.845-3.912-1.6640.8731.6120.053-4.0750.5521.6065.333
Percentage of OtherComprehensiveIncomeLossTaxPortionAttributableToParent1646.5-177.10.0-66.1-431.7-618.30.0-51.8-273.5-425.20.0765.8-404.024.40.00.00.00.0

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value-0.235-4.2780.948-0.793-2.102-1.224-3.071.6660.7362.1930.8130.157-0.550.2994.4230.804-1.282-3.121.22-2.5582.328-1.588-2.2340.1-0.263
Percentage of OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-0.481112.4121.233118.7998.869-2.538-2.751-11.514-2.271.062.774-0.496-9.0230.9384.45610-7.0372.733-6.3956.4995.4540.171311-8.427-1.074-31.492261.292102.2255.479-2.726-4.75311-0.95-21.310.29209.495
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherNoninterestExpense

us-gaap:OtherNoninterestExpense


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
Value5.8433.3753.9483.776.2375.8643.0393.8453.1593.9455.0833.2154.7623.334.3134.2751.9794.4273.9353.0693.1643.5173.0453.2793.4233.8362.7493.0543.12.6043.1698.192.2862.4492.6662.432.6232.5612.1412.7222.8354.58
Percentage of OtherNoninterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForOriginationAndPurchasesOfLoansHeldForSale

us-gaap:PaymentsForOriginationAndPurchasesOfLoansHeldForSale


None
Period End2020-06-302020-03-312019-06-302019-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-312010-09-30
Value2.5280.2360.0-0.00.03.8765.53.289109.2568.6428.7914.3745.7925.3024.3971.3382.54214231.0690.8132243.035210.014
Percentage of PaymentsForOriginationAndPurchasesOfLoansHeldForSale100.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:PaymentsForProceedsFromLoansAndLeases

us-gaap:PaymentsForProceedsFromLoansAndLeases


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
Value7745834320531628135429633314127731619817019850217617412612127530561286256220262138336-61.833171223132-131.8227815877473.171103.11434
Percentage of PaymentsForProceedsFromLoansAndLeases100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value1376000.0523000.011000.00707000.01593000.000327000.03223000.01000.09000.005118000.00068000.035000.023000.0090000.0114000.0576000.00
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.00.0100.0100.00.00.0100.0100.0100.0100.00.0100.00.00.0100.0100.0100.00.0100.0100.0100.00.0

us-gaap:PaymentsToAcquireAvailableForSaleSecurities

us-gaap:PaymentsToAcquireAvailableForSaleSecurities


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
Value12689230114270154480.0323125-110.9311012499925040026525-1027.65299520703-6.924541104246-676.52925026750819914059116199314487.7683199308481267
Percentage of PaymentsToAcquireAvailableForSaleSecurities100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireFederalHomeLoanBankStock

us-gaap:PaymentsToAcquireFederalHomeLoanBankStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302016-12-31
Value0.84-0.00.840.00.00.9750.00.00.0
Percentage of PaymentsToAcquireFederalHomeLoanBankStock100.00.0100.00.00.0100.00.00.00.0

us-gaap:ProceedsFromFederalHomeLoanBankBorrowings

us-gaap:ProceedsFromFederalHomeLoanBankBorrowings


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
Value38510657454101290191063520451300115022151813545250825975130545025021023902242157018001325512765910983452981251460.02604730-1039.5287572869678
Percentage of ProceedsFromFederalHomeLoanBankBorrowings100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromIssuanceOfCommonStockDividendReinvestmentPlan

us-gaap:ProceedsFromIssuanceOfCommonStockDividendReinvestmentPlan


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value861000.0846000.0844000.0841000.0846000.0835000.0840000.0657000.0661000.0664000.0679000.0616000.0616000.0617000.0634000.0547000.0551000.0545000.0539000.0884000.01463000.01289000.01294000.0679000.0489000.0386000.0403000.066000.074000.062000.0
Percentage of ProceedsFromIssuanceOfCommonStockDividendReinvestmentPlan100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value300126634910874-4.4288883173-54.70246542133-186.938158150575723244226501102750.0604785993493
Percentage of ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0

us-gaap:ProceedsFromRepaymentsOfOtherDebt

us-gaap:ProceedsFromRepaymentsOfOtherDebt


None
Period End2020-03-312019-03-31
Value58000.0-15000000.0
Percentage of ProceedsFromRepaymentsOfOtherDebt100.0100.0

us-gaap:ProceedsFromSaleOfAvailableForSaleSecurities

us-gaap:ProceedsFromSaleOfAvailableForSaleSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value327414499500.00.25599120.00.099-415.249173-647.96174216741-382.85476327139-328.5573502333200.0191030211361502170.0665.5471445
Percentage of ProceedsFromSaleOfAvailableForSaleSecurities100.0100.0100.0100.0100.00.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfFederalHomeLoanBankStock

us-gaap:ProceedsFromSaleOfFederalHomeLoanBankStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312015-12-312015-09-302014-12-312014-09-302013-12-312013-09-30
Value0.840.840.00.00.00.9750.00.05.435.8357.0230.00.03.7333.2753.6834.235
Percentage of ProceedsFromSaleOfFederalHomeLoanBankStock100.0100.00.00.00.0100.00.00.0100.0100.0100.00.00.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfOtherRealEstate

us-gaap:ProceedsFromSaleOfOtherRealEstate


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1.3650.8810.9170.01.8440.0610.5180.5171.3051.48160.7870.5210.8780.9865.8851.630.3859.0961.0431.33710116.3799.4853.2955.281.35114111110117.44626162263-4.2329.739
Percentage of ProceedsFromSaleOfOtherRealEstate100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfTradingSecuritiesHeldforinvestment

us-gaap:ProceedsFromSaleOfTradingSecuritiesHeldforinvestment


None
Period End2020-06-302020-03-312019-06-302019-03-31
Value-1000.03113000.000
Percentage of ProceedsFromSaleOfTradingSecuritiesHeldforinvestment100.0100.00.00.0

us-gaap:ProfessionalFees

us-gaap:ProfessionalFees


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
Value5.25.1455.8985.9526.05.2575.7555.2865.736.0395.8984.9425.3434.2564.7054.9994.6144.3687.7845.6876.2875.3526.2245.9915.2635.1566.095.8136.8545.8176.5445.2735.2094.7426.6754.8464.9593.7293.5314.465.04.639
Percentage of ProfessionalFees100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProvisionForDoubtfulAccounts us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:Range, us-gaap:AdjustmentsForNewAccountingPronouncements

us-gaap:ProvisionForDoubtfulAccounts

srt:CumulativeEffectPeriodOfAdoptionAdjustment, srt:Maximum, us-gaap:AccountingStandardsUpdate201613


None
Period End2020-06-302020-03-31
Value10.015
Percentage of ProvisionForDoubtfulAccounts100.0100.0

us-gaap:ProvisionForLoanAndLeaseLosses

us-gaap:ProvisionForLoanAndLeaseLosses


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2525-5.0-2.00.00.00.0-1.50.0-3.00.00.00.0-2.50.00.0-5.15-10.5-3.0-1.25-2.15-5.0-2.0-5.1-3.70.0-3.00.00.0-5.0-4.02.09.010.06.010.0174584
Percentage of ProvisionForLoanAndLeaseLosses100.0100.0100.0100.00.00.00.0100.00.0100.00.00.00.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProvisionForLoanLeaseAndOtherLosses

us-gaap:ProvisionForLoanLeaseAndOtherLosses


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-03-312016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2525-5.0-2.00.00.00.0-1.50.0-3.0-2.5-5.15-10.5-3.0-1.25-2.15-5.0-12.4930.0770.9990.617-1.4470.219-0.857-0.0370.3062.8754.7472.741.2974.7732.3361.979121.8733.3342.855
Percentage of ProvisionForLoanLeaseAndOtherLosses100.0100.0100.0100.00.00.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProvisionForLoanLeaseAndOtherLosses us-gaap:FinancingReceivablePortfolioSegment

caty:InstallmentAndOtherLoans


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.0-0.019-0.006-0.005-0.0040.016-0.0080.007-0.002-0.001
Percentage of ProvisionForLoanLeaseAndOtherLosses0.0-0.10.10.20.00.00.0-0.50.00.0

caty:RealEstateConstructionPortfolioSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3.4783.748-2.224-2.690.2570.053-1.6450.519-1.245-3.018
Percentage of ProvisionForLoanLeaseAndOtherLosses13.915.044.5134.50.00.00.0-34.60.0100.6

caty:ResidentialMortgageAndEquityLinesPortfolioSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2.1584.2510.589-2.0570.027-0.4651.4310.8420.860.275
Percentage of ProvisionForLoanLeaseAndOtherLosses8.617.0-11.8102.80.00.00.0-56.10.0-9.2

us-gaap:CommercialPortfolioSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1810-3.3777.4-0.10.962-2.1611.270.923.907
Percentage of ProvisionForLoanLeaseAndOtherLosses72.943.667.5-370.00.00.00.0-84.70.0-130.2

us-gaap:CommercialRealEstatePortfolioSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1.1516.1290.018-4.648-0.18-0.5662.383-4.138-0.533-4.163
Percentage of ProvisionForLoanLeaseAndOtherLosses4.624.5-0.4232.40.00.00.0275.90.0138.8

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax


None
Period End2020-06-302019-06-302016-09-302016-06-302015-12-312015-09-302015-06-302014-12-312014-09-302014-06-302013-12-312013-09-302013-06-30
Value0.8080.0-0.981-0.959-0.0120.011.931-0.0460.2090.2930.1195.0367.058
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent us-gaap:StatementEquityComponents

us-gaap:ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-1.147-0.0060.1030.1210.00.00.036-0.0141.4450.024-0.0030.466-8.0391.692-1.6550.206
Percentage of ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedOtherComprehensiveIncome


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-1.147-0.0060.1030.1210.00.00.036-0.0141.4450.024-0.0030.466-8.0391.692-1.6550.206
Percentage of ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent us-gaap:StatementEquityComponents

us-gaap:ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-0.808-0.0040.0730.0850.00.00.025-0.010.8370.014-0.0020.27-4.660.981-0.9590.119
Percentage of ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedOtherComprehensiveIncome


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-0.808-0.0040.0730.0850.00.00.025-0.010.8370.014-0.0020.27-4.660.981-0.9590.119
Percentage of ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ReclassificationFromAociCurrentPeriodTax us-gaap:StatementEquityComponents

us-gaap:ReclassificationFromAociCurrentPeriodTax

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-339000.0-2000.030000.036000.00011000.0-4000.0608000.010000.0-1000.0196000.0-3379000.0711000.0-696000.087000.0
Percentage of ReclassificationFromAociCurrentPeriodTax100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedOtherComprehensiveIncome


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-339000.0-2000.030000.036000.00011000.0-4000.0608000.010000.0-1000.0196000.0-3379000.0711000.0-696000.087000.0
Percentage of ReclassificationFromAociCurrentPeriodTax100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfFederalHomeLoanBankBorrowings

us-gaap:RepaymentsOfFederalHomeLoanBankBorrowings


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
Value6501240675360116020204202210114512552380172339527511758301225250503452665218217001766144050125158493453170.0146-21.24854710-1042.028904486842-174.096143
Percentage of RepaymentsOfFederalHomeLoanBankBorrowings100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfShortTermDebt

us-gaap:RepaymentsOfShortTermDebt


None
Period End2020-06-302020-03-312019-06-302019-03-31
Value12120.0-0.0
Percentage of RepaymentsOfShortTermDebt100.0100.00.00.0

us-gaap:SalariesWagesAndOfficersCompensation

us-gaap:SalariesWagesAndOfficersCompensation


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
Value2830323133323230303029272625262221262220242220222323
Percentage of SalariesWagesAndOfficersCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod

caty:PerformanceBasedRestrictedStockUnits


None
Period End2020-06-302020-03-312019-12-312019-09-30
Value14071.0000
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod100.00.00.00.0

caty:TimeBasedRestrictedStockUnits


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value1640.01772.09487.0330.07749.08923.0799.03761.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod11.70.00.00.00.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue

caty:PerformanceBasedRestrictedStockUnits


None
Period End2020-06-302020-03-312019-12-312019-09-30
Value39.08000
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue100.00.00.00.0

caty:TimeBasedRestrictedStockUnits


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-0.239.50.920.111.1937.120.50.17
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue-0.50.00.00.00.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod

caty:PerformanceBasedRestrictedStockUnits


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value193240.000035092.057409.052877.00
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod100.00.00.00.0100.0100.0100.00.0

caty:TimeBasedRestrictedStockUnits


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value5670.071794.0861.0071828.021040.000
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod2.90.00.00.0204.736.60.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue

caty:PerformanceBasedRestrictedStockUnits


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value21.68000038.36-3.350
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue100.00.00.00.00.0100.0100.00.0

caty:TimeBasedRestrictedStockUnits


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-0.1425.620.020-0.9136.0300
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue-0.60.00.00.00.093.9-0.00.0

us-gaap:StockIssuedDuringPeriodSharesDividendReinvestmentPlan us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesDividendReinvestmentPlan

caty:CommonStockOutstanding


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value32903.039665.022345.023508.024345.022945.023014.015513.015286.0
Percentage of StockIssuedDuringPeriodSharesDividendReinvestmentPlan100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesIssuedForServices us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesIssuedForServices

caty:CommonStockOutstanding


None
Period End2020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-30
Value31110.00021160.00016060.0
Percentage of StockIssuedDuringPeriodSharesIssuedForServices100.00.00.0100.00.00.0100.0

us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures

caty:CommonStockOutstanding


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value135700.051183.0563.0051552.071647.035736.0017339.0
Percentage of StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures100.0100.0100.00.0100.0100.0100.00.0100.0

us-gaap:StockIssuedDuringPeriodValueDividendReinvestmentPlan

us-gaap:StockIssuedDuringPeriodValueDividendReinvestmentPlan


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value860000.0846000.0844000.0841000.0846000.0835000.0840000.0657000.0661000.0664000.0
Percentage of StockIssuedDuringPeriodValueDividendReinvestmentPlan100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueDividendReinvestmentPlan us-gaap:StatementEquityComponents

caty:CommonStockOutstanding


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value01000.0001000.001000.000
Percentage of StockIssuedDuringPeriodValueDividendReinvestmentPlan0.00.10.00.00.10.00.10.00.0

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value860000.0845000.0844000.0841000.0845000.0835000.0839000.0657000.0661000.0664000.0
Percentage of StockIssuedDuringPeriodValueDividendReinvestmentPlan100.099.9100.0100.099.9100.099.9100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueIssuedForServices

us-gaap:StockIssuedDuringPeriodValueIssuedForServices


None
Period End2020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-30
Value800000.000749000.0-1000.00650000.0
Percentage of StockIssuedDuringPeriodValueIssuedForServices100.00.00.0100.0100.00.0100.0

us-gaap:StockIssuedDuringPeriodValueIssuedForServices us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-30
Value800000.000749000.0-1000.00650000.0
Percentage of StockIssuedDuringPeriodValueIssuedForServices100.00.00.0100.0100.00.0100.0

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1000.01000.00001000.0-1000.001000.01000.0
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures100.0100.00.00.00.0100.0100.00.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures us-gaap:StatementEquityComponents

caty:CommonStockOutstanding


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1000.01000.00001000.0-1000.001000.0
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures100.0100.00.00.00.0100.0100.00.0100.0

us-gaap:TreasuryStockAcquiredAverageCostPerShare us-gaap:ShareRepurchaseProgram

us-gaap:TreasuryStockAcquiredAverageCostPerShare

caty:May2019RepurchaseProgram


None
Period End2020-06-302020-03-312019-12-312019-06-30
Value032.2035.78
Percentage of TreasuryStockAcquiredAverageCostPerShare0.0100.00.0100.0

us-gaap:TreasuryStockSharesAcquired us-gaap:ShareRepurchaseProgram

us-gaap:TreasuryStockSharesAcquired

caty:May2019RepurchaseProgram


None
Period End2020-06-302020-03-312019-12-312019-06-30
Value0400000.00606930.0
Percentage of TreasuryStockSharesAcquired0.0100.00.0100.0

us-gaap:TreasuryStockSharesAcquired us-gaap:StatementEquityComponents

caty:CommonStockOutstanding


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0400000.00135000.0641890.0233700.0
Percentage of TreasuryStockSharesAcquired0.0100.00.00.0105.80.0

us-gaap:TreasuryStockValueAcquiredCostMethod

us-gaap:TreasuryStockValueAcquiredCostMethod


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312016-12-312016-06-302016-03-312015-12-31
Value0.0120.04.692238.6010.04154548.7
Percentage of TreasuryStockValueAcquiredCostMethod0.0100.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStockValueAcquiredCostMethod us-gaap:ShareRepurchaseProgram

caty:May2019RepurchaseProgram


None
Period End2020-06-302020-03-312019-12-312019-06-30
Value0.0120.021
Percentage of TreasuryStockValueAcquiredCostMethod0.0100.20.094.3

us-gaap:TreasuryStockValueAcquiredCostMethod us-gaap:StatementEquityComponents

us-gaap:TreasuryStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.0120.04.692238.601
Percentage of TreasuryStockValueAcquiredCostMethod0.0100.00.0100.0100.0100.0

caty:AffordableHousingInvestmentsAndAlternativeEnergyPartnershipsNet

caty:AffordableHousingInvestmentsAndAlternativeEnergyPartnershipsNet


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
Value320294308321301285282295308271272298288245251225199212182168160104
Percentage of AffordableHousingInvestmentsAndAlternativeEnergyPartnershipsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:BillOfLadingGuaranteesFairValue

caty:BillOfLadingGuaranteesFairValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312018-06-302018-03-312017-12-312016-12-312016-06-302015-12-31
Value00-1000.0000-1000.0000-1000.0-1000.0
Percentage of BillOfLadingGuaranteesFairValue0.00.0100.00.00.00.0100.00.00.00.0100.0100.0

caty:BillOfLadingGuaranteesNotionalAmount

caty:BillOfLadingGuaranteesNotionalAmount


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value124000.089000.0319000.0743000.0188000.0662000.0730000.01108000.01440000.024000.024000.024000.0113000.024000.075000.051000.052000.0454000.0294000.0199000.0159000.0108000.080000.0
Percentage of BillOfLadingGuaranteesNotionalAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:CommitmentsToExtendCreditFairValue

caty:CommitmentsToExtendCreditFairValue


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
Value-9464000.0-9176000.0-9826000.0-9291000.0-8916000.0-5703000.0-8843000.0-9095000.0-2389000.0-7711000.0-7224000.0-6924000.0-6446000.0-6345000.0-6025000.0-5844000.0-5639000.0-5722000.0-5570000.0-4879000.0-4123000.0-3740000.0-3442000.0-2187000.0
Percentage of CommitmentsToExtendCreditFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:CommitmentsToExtendNotionalAmount

caty:CommitmentsToExtendNotionalAmount


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
Value307329343100309730192776269126452559248723662287210221262062195020402098197118532003202720711858
Percentage of CommitmentsToExtendNotionalAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:DerivativeOutstandingNotionalAmount us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation

caty:DerivativeOutstandingNotionalAmount

us-gaap:InterestRateSwap, us-gaap:FairValueHedging, us-gaap:DesignatedAsHedgingInstrument


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value561579584570585613637631561540510446424361358360357340
Percentage of DerivativeOutstandingNotionalAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:DerivativeOutstandingNotionalAmount us-gaap:Range, us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation

srt:Minimum, us-gaap:InterestRateSwap, us-gaap:FairValueHedging, us-gaap:DesignatedAsHedgingInstrument


None
Period End2020-06-30
Value527
Percentage of DerivativeOutstandingNotionalAmount0.0

caty:EstimatedSalesCostAppliedToCollateral us-gaap:Range, us-gaap:MeasurementInputType

caty:EstimatedSalesCostAppliedToCollateral

srt:Maximum, us-gaap:MeasurementInputPriceVolatility


None
Period End2020-06-302020-03-31
Value0.23260.1738
Percentage of EstimatedSalesCostAppliedToCollateral100.0100.0

srt:Maximum, us-gaap:MeasurementInputRiskFreeInterestRate


None
Period End2020-06-302020-03-31
Value0.0060.0093
Percentage of EstimatedSalesCostAppliedToCollateral2.65.4

srt:Minimum, us-gaap:MeasurementInputPriceVolatility


None
Period End2020-06-302020-03-31
Value0.16610.1378
Percentage of EstimatedSalesCostAppliedToCollateral71.479.3

srt:Minimum, us-gaap:MeasurementInputRiskFreeInterestRate


None
Period End2020-06-302020-03-31
Value0.00290.0046
Percentage of EstimatedSalesCostAppliedToCollateral1.22.6

caty:FinancingReceivableNumberOfContractsWithModifications us-gaap:FinancingReceivablePortfolioSegment

caty:FinancingReceivableNumberOfContractsWithModifications

us-gaap:CommercialPortfolioSegment


None
Period End2020-06-30
Value81.0
Percentage of FinancingReceivableNumberOfContractsWithModifications100.0

us-gaap:CommercialRealEstatePortfolioSegment


None
Period End2020-06-30
Value723.0
Percentage of FinancingReceivableNumberOfContractsWithModifications892.6

caty:FinancingReceivableNumberOfContractsWithModifications us-gaap:FinancingReceivablePortfolioSegment, us-gaap:SubsequentEventType

us-gaap:CommercialPortfolioSegment, us-gaap:SubsequentEvent


None
Period End2020-05-01
Value46.0
Percentage of FinancingReceivableNumberOfContractsWithModifications0.0

us-gaap:CommercialRealEstatePortfolioSegment, us-gaap:SubsequentEvent


None
Period End2020-05-01
Value504.0
Percentage of FinancingReceivableNumberOfContractsWithModifications0.0

caty:FinancingReceivablesImpairedTroubledDebtRestructuringSpecificReserve

caty:FinancingReceivablesImpairedTroubledDebtRestructuringSpecificReserve


None
Period End2020-06-302020-03-312019-12-312019-06-302019-03-312018-12-312017-12-31
Value86000.002190000.037000.001518000.01556000.0
Percentage of FinancingReceivablesImpairedTroubledDebtRestructuringSpecificReserve100.00.0100.0100.00.0100.0100.0

caty:FinancingReceivablesImpairedTroubledDebtRestructuringSpecificReserve us-gaap:ClassOfFinancingReceivableTypeOfBorrower

caty:AccruingTroubledDebtRestructuring


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value822000.0822000.0822000.01500000.0
Percentage of FinancingReceivablesImpairedTroubledDebtRestructuringSpecificReserve955.80.037.598.8

caty:FinancingReceivablesImpairedTroubledDebtRestructuringSpecificReserve us-gaap:FinancingReceivablePortfolioSegment

us-gaap:CommercialPortfolioSegment


None
Period End2020-06-302020-03-312019-12-312019-06-302019-03-312018-12-312017-12-31
Value86000.002190000.037000.001384000.07000.0
Percentage of FinancingReceivablesImpairedTroubledDebtRestructuringSpecificReserve100.00.0100.0100.00.091.20.4

caty:ForeignCurrencyContractAssetFairValueLossDisclosure

caty:ForeignCurrencyContractAssetFairValueLossDisclosure


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
Value531000.04211000.01415000.02435000.0876000.0645000.01763000.01648000.02083000.0924000.0453000.01083000.0640000.0647000.03132000.0712000.01602000.0913000.04124000.04895000.03201000.04959000.05007000.06140000.0
Percentage of ForeignCurrencyContractAssetFairValueLossDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:ForeignExchangeContractAssetFairValueGainDisclosure

caty:ForeignExchangeContractAssetFairValueGainDisclosure


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
Value1529000.01157000.02411000.0965000.0638000.0459000.0397000.0400000.0389000.01539000.01832000.01725000.02378000.01148000.01302000.01711000.02083000.03314000.03339000.03363000.02326000.01615000.01876000.06182000.0
Percentage of ForeignExchangeContractAssetFairValueGainDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:LoansAndLeasesReceivableWithModificationsGross us-gaap:FinancingReceivablePortfolioSegment

caty:LoansAndLeasesReceivableWithModificationsGross

us-gaap:CommercialPortfolioSegment


None
Period End2020-06-30
Value141
Percentage of LoansAndLeasesReceivableWithModificationsGross100.0

us-gaap:CommercialRealEstatePortfolioSegment


None
Period End2020-06-30
Value1500
Percentage of LoansAndLeasesReceivableWithModificationsGross1059.3

caty:LoansAndLeasesReceivableWithModificationsGross us-gaap:FinancingReceivablePortfolioSegment, us-gaap:SubsequentEventType

us-gaap:CommercialPortfolioSegment, us-gaap:SubsequentEvent


None
Period End2020-05-01
Value123
Percentage of LoansAndLeasesReceivableWithModificationsGross0.0

us-gaap:CommercialRealEstatePortfolioSegment, us-gaap:SubsequentEvent


None
Period End2020-05-01
Value978
Percentage of LoansAndLeasesReceivableWithModificationsGross0.0

caty:NetAmountOfDerivativeAssetsPresentedInTheBalanceSheet

caty:NetAmountOfDerivativeAssetsPresentedInTheBalanceSheet


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
Value3.8423.212.1811.6971.444.487.811814115.2182.3141.6081.8510.938
Percentage of NetAmountOfDerivativeAssetsPresentedInTheBalanceSheet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:NetAmountOfDerivativeAssetsPresentedInTheBalanceSheetNotOffset

caty:NetAmountOfDerivativeAssetsPresentedInTheBalanceSheetNotOffset


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
Value3.8423.212.1811.6971.444.487.811814115.2182.3141.6081.8510.000938
Percentage of NetAmountOfDerivativeAssetsPresentedInTheBalanceSheetNotOffset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:NetAmountOfDerivativeLiabilitiesPresentedInTheBalanceSheet

caty:NetAmountOfDerivativeLiabilitiesPresentedInTheBalanceSheet


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value33321417135.7271.5430.1572.6995.0494.7713.2283.74418146.4963.7264.0958.614.626
Percentage of NetAmountOfDerivativeLiabilitiesPresentedInTheBalanceSheet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:NotionalAmountOfForeignCurrencyDerivativePurchaseContractsWithGain

caty:NotionalAmountOfForeignCurrencyDerivativePurchaseContractsWithGain


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
Value101110146701097686536278108691571748210785138100129193127167267
Percentage of NotionalAmountOfForeignCurrencyDerivativePurchaseContractsWithGain100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:NotionalAmountOfForeignCurrencyDerivativePurchaseContractsWithLoss

caty:NotionalAmountOfForeignCurrencyDerivativePurchaseContractsWithLoss


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
Value17921612712195579411792573286457089448473115144188158178236
Percentage of NotionalAmountOfForeignCurrencyDerivativePurchaseContractsWithLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:NumberOfBranchLocations us-gaap:StatementGeographical

caty:NumberOfBranchLocations

caty:NorthernCalifornia


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-06-302014-03-312013-09-302013-06-302013-03-31
Value13.013.013.014.014.014.014.015.012.012.012.012.012.012.012.012.012.011.011.011.011.011.0
Percentage of NumberOfBranchLocations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:SouthernCalifornia


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-06-302014-03-312013-09-302013-06-302013-03-31
Value25.025.025.025.026.026.026.026.022.022.022.022.022.021.021.021.021.021.021.020.020.020.0
Percentage of NumberOfBranchLocations192.3192.3192.3178.6185.7185.7185.7173.3183.3183.3183.3183.3183.3175.0175.0175.0175.0190.9190.9181.8181.8181.8

stpr:NY


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-06-30
Value10.010.010.010.011.012.012.012.012.012.012.012.09.09.09.0
Percentage of NumberOfBranchLocations76.976.976.971.478.6100.0100.0100.0100.0100.0100.0100.075.075.081.8

stpr:WA


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-06-30
Value4.04.04.04.04.03.03.03.03.03.03.03.03.0
Percentage of NumberOfBranchLocations30.830.830.828.628.625.025.025.025.025.025.025.027.3

caty:OptionContractsFairValue

caty:OptionContractsFairValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value6000.014000.07000.06000.014000.012000.06000.04000.09000.03000.09000.0234000.0231000.0180000.0121000.028000.0
Percentage of OptionContractsFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:Options

caty:Options


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value0.532.4960.9081.1721.6982.1881.2151.6231.6541.0281.014121311129.396
Percentage of Options100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:OtherBorrowingsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

caty:OtherBorrowingsFairValueDisclosure

us-gaap:FairValueInputsLevel3, us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value33313034
Percentage of OtherBorrowingsFairValueDisclosure100.0100.0100.0100.0

caty:OtherBorrowingsFairValueDisclosure us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value403636384948353553535215317
Percentage of OtherBorrowingsFairValueDisclosure121.5117.2119.20.00.00.0105.10.00.00.00.00.00.0

us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value333130314342343352515115115
Percentage of OtherBorrowingsFairValueDisclosure100.0100.0100.00.00.00.0100.00.00.00.00.00.00.0

caty:OtherBorrowingsForAffordableHousingInvestments

caty:OtherBorrowingsForAffordableHousingInvestments


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value322829303029171717171717171717171717181820221918181919191919181818181818191919
Percentage of OtherBorrowingsForAffordableHousingInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:OtherLettersOfCreditFairValue

caty:OtherLettersOfCreditFairValue


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
Value-30000.0-17000.0-20000.0-28000.0-21000.0-28000.0-30000.0-20000.0-28000.0-13000.0-52000.0-218000.0-17000.0-12000.0-16000.0-69000.0-20000.0-18000.0-22000.0-31000.0-35000.0-34000.0-29000.0-34000.0
Percentage of OtherLettersOfCreditFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:OtherLettersOfCreditNotionalAmount

caty:OtherLettersOfCreditNotionalAmount


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
Value281922292429353035252741312337312930385857504854
Percentage of OtherLettersOfCreditNotionalAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:PercentageOfChargeOffToContractualBalancesForImpairedLoans

caty:PercentageOfChargeOffToContractualBalancesForImpairedLoans


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value0.0030.0030.0210.0190.0990.0910.0930.0740.0650.0640.0720.0710.10.1030.0840.0770.1720.1420.2240.1890.1860.170.1710.1260.1290.150.2390.2220.2370.2210.2320.2210.2190.2240.2560.2360.233
Percentage of PercentageOfChargeOffToContractualBalancesForImpairedLoans100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:PledgedInvestmentSecurities

caty:PledgedInvestmentSecurities


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
Value97212020218728331582312722912252856495054714454494575195755917038498539269411120136014501570154015201680
Percentage of PledgedInvestmentSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:ReserveForOffBalanceSheetCreditCommitments

caty:ReserveForOffBalanceSheetCreditCommitments


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302011-12-312011-09-302011-06-302010-12-312010-09-302010-06-30
Value4663000.03013000.03855000.04550000.04550000.03850000.02250000.03088000.03088000.04588000.04588000.04254000.04513000.03424000.03224000.02229000.02124000.02694000.01494000.01420000.01574000.01652000.01949000.02018000.01844000.02069000.01863000.01547000.02337000.02664000.04830000.0
Percentage of ReserveForOffBalanceSheetCreditCommitments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:ReserveForOffBalanceSheetCreditCommitments us-gaap:FinancingReceivablePortfolioSegment

caty:InstallmentAndOtherLoans


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value2000.03000.03000.03000.04000.02000.03000.06000.08000.06000.05000.04000.06000.06000.06000.02000.02000.0
Percentage of ReserveForOffBalanceSheetCreditCommitments0.00.10.10.10.10.10.10.20.30.10.10.10.10.20.20.10.1

caty:RealEstateConstructionPortfolioSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value666000.01233000.01047000.01608000.02029000.01668000.0745000.01174000.01207000.01515000.01360000.01206000.01707000.0909000.0940000.0526000.0477000.0427000.0527000.0728000.0668000.0391000.0
Percentage of ReserveForOffBalanceSheetCreditCommitments14.340.927.235.344.643.333.138.039.133.029.628.337.826.529.235.233.627.131.937.433.121.2

caty:ResidentialMortgageAndEquityLinesPortfolioSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value297000.0304000.0311000.0313000.0290000.0275000.0246000.0215000.0190000.0182000.0190000.0175000.0143000.0146000.0146000.080000.0119000.037000.042000.040000.039000.039000.036000.0
Percentage of ReserveForOffBalanceSheetCreditCommitments6.410.18.16.96.47.110.97.06.24.04.14.13.24.34.53.65.62.62.72.42.01.92.0

us-gaap:CommercialPortfolioSegment


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
Value3581000.01296000.02301000.02505000.02090000.01759000.01161000.01615000.01606000.02747000.02919000.02760000.02583000.02243000.02091000.02112000.01969000.02641000.0810000.0703000.0942000.0903000.0923000.0901000.01014000.0
Percentage of ReserveForOffBalanceSheetCreditCommitments76.843.059.755.145.945.751.652.352.059.963.664.957.265.564.994.892.798.054.249.559.854.747.444.655.0

us-gaap:CommercialRealEstatePortfolioSegment


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
Value117000.0177000.0193000.0121000.0137000.0146000.095000.078000.077000.0138000.0114000.0109000.074000.0120000.041000.035000.034000.053000.0158000.0202000.0163000.0181000.0259000.0410000.0401000.0
Percentage of ReserveForOffBalanceSheetCreditCommitments2.55.95.02.73.03.84.22.52.53.02.52.61.63.51.31.61.62.010.614.210.411.013.320.321.7

caty:ReserveToImpairedLoans

caty:ReserveToImpairedLoans


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302011-12-312011-09-302011-06-302010-12-312010-09-302010-06-30
Value7.5253.4513.2361.5011.6861.4143.8023.7043.8331.5022.1342.6061.5612.2752.7962.9437.7247.197.749147.9841111139.6097.5527.40314152325
Percentage of ReserveToImpairedLoans100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:ReserveToImpairedLoans us-gaap:FinancingReceivablePortfolioSegment

caty:RealEstateConstructionPortfolioSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302015-09-302014-12-312014-09-302014-06-30
Value0.00.00.00.00.00.00.00.00.00.01.0772.6040.143
Percentage of ReserveToImpairedLoans0.00.00.00.00.00.00.00.00.00.09.118.91.5

caty:ResidentialMortgageAndEquityLinesPortfolioSegment


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
Value0.3070.2190.220.2210.2340.2491.0880.2810.3340.3460.3530.3220.3980.3950.3960.3750.4380.3720.4270.3730.4640.4980.4650.4810.519
Percentage of ReserveToImpairedLoans4.16.36.814.713.917.628.67.68.723.016.512.425.517.414.212.75.75.25.52.65.84.53.93.55.4

us-gaap:CommercialPortfolioSegment


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
Value6.8952.8272.5430.7440.8320.4981.8372.5062.4630.0110.0431.4610.1441.0621.8271.321.3950.2250.537.5610.9663.9111.2632.732.717
Percentage of ReserveToImpairedLoans91.681.978.649.649.335.248.367.764.30.72.056.19.246.765.344.918.13.16.852.812.135.410.719.828.3

us-gaap:CommercialRealEstatePortfolioSegment


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
Value0.3230.4050.4730.5360.620.6670.8770.9171.0361.1451.7380.8231.0190.8180.5731.2485.8916.5936.7926.3896.5546.6358.9937.9996.23
Percentage of ReserveToImpairedLoans4.311.714.635.736.847.223.124.827.076.281.431.665.336.020.542.476.391.787.744.682.160.176.257.964.8

caty:ReserveToNonImpairedLoans

caty:ReserveToNonImpairedLoans


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302011-12-312011-09-302011-06-302010-12-312010-09-302010-06-30
Value162144119124120121118119118120121118115113116114115127131135145145149155159198201215230234230
Percentage of ReserveToNonImpairedLoans100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:ReserveToNonImpairedLoans us-gaap:FinancingReceivablePortfolioSegment

caty:InstallmentAndOtherLoans


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
Value0.00.00.0190.0250.030.0340.0180.0260.0190.0210.0220.0240.0180.0140.0110.0080.0120.007
Percentage of ReserveToNonImpairedLoans0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

caty:RealEstateConstructionPortfolioSegment


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
Value2623192121201921202124221719239.24510122226262326329.412
Percentage of ReserveToNonImpairedLoans16.516.016.217.417.417.116.517.717.518.120.518.515.417.520.08.09.310.016.919.518.116.017.820.75.9

caty:ResidentialMortgageAndEquityLinesPortfolioSegment


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
Value1917121113131312111110101412119.682151410121111111012
Percentage of ReserveToNonImpairedLoans11.911.810.79.611.511.311.110.59.99.18.89.012.410.79.78.413.111.58.29.18.27.87.47.17.7

us-gaap:CommercialPortfolioSegment


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
Value75645457535453545254494946464752495655474645465360
Percentage of ReserveToNonImpairedLoans46.544.945.446.544.244.844.845.144.645.341.141.740.440.840.845.542.744.142.434.932.031.630.934.538.0

us-gaap:CommercialRealEstatePortfolioSegment


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
Value40393332323232313233353636353443404342496064655877
Percentage of ReserveToNonImpairedLoans25.227.327.626.526.926.827.526.627.927.429.630.831.831.029.538.034.934.432.536.541.744.643.937.848.4

caty:ShortTermInvestmentsAndInterestBearingDeposits

caty:ShortTermInvestmentsAndInterestBearingDeposits


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value1425363416567351343374377208524292573393630967791706432536369486184895978036205163891392154114265132752943396169206
Percentage of ShortTermInvestmentsAndInterestBearingDeposits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:ShorttermInvestmentFairValueDisclosure us-gaap:FairValueByMeasurementBasis

caty:ShorttermInvestmentFairValueDisclosure

us-gaap:CarryingReportedAmountFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value1425363416567351343374377208524292573967
Percentage of ShorttermInvestmentFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value1425363416567351343374377208524292573967
Percentage of ShorttermInvestmentFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:StandbyLettersOfCreditFairValue

caty:StandbyLettersOfCreditFairValue


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
Value-1981000.0-2180000.0-2431000.0-2537000.0-2630000.0-2890000.0-2662000.0-1509000.0-1787000.0-1418000.0-1805000.0-1699000.0-995000.0-1038000.0-668000.0-839000.0-300000.0-199000.0-194000.0-216000.0-202000.0-238000.0-243000.0-205000.0
Percentage of StandbyLettersOfCreditFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:StandbyLettersOfCreditNotionalAmount

caty:StandbyLettersOfCreditNotionalAmount


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
Value262261282264255260245167169142140140979675747649494850495345
Percentage of StandbyLettersOfCreditNotionalAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

caty:TroubledDebtRestructuringSpecificReserves us-gaap:ClassOfFinancingReceivableTypeOfBorrower

caty:TroubledDebtRestructuringSpecificReserves

caty:AccruingTroubledDebtRestructuring


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-12-31
Value4321.01.21.31.21.5
Percentage of TroubledDebtRestructuringSpecificReserves100.0100.0100.0100.0100.0100.0

caty:NonaccruingTroubledDebtRestructuring


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-12-31
Value532.20.1410.0540.0560.826
Percentage of TroubledDebtRestructuringSpecificReserves12.3220.011.84.24.755.1

us-gaap:AdvancesFromFederalHomeLoanBanks

us-gaap:AdvancesFromFederalHomeLoanBanks


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-312011-09-302011-06-302011-03-312010-12-31
Value230495670600550420530315480325430595475325350700555475275752104854255555216365213761261261462121225205250350550
Percentage of AdvancesFromFederalHomeLoanBanks100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdvancesFromFederalHomeLoanBanks us-gaap:DebtInstrument

caty:MatureInApril2021


None
Period End2020-03-31
Value275
Percentage of AdvancesFromFederalHomeLoanBanks55.6

caty:MatureInMay2021


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-30
Value8075757575
Percentage of AdvancesFromFederalHomeLoanBanks34.815.211.212.513.6

caty:MatureInNovember2020


None
Period End2020-06-30
Value5.0
Percentage of AdvancesFromFederalHomeLoanBanks2.2

us-gaap:AdvancesFromFederalHomeLoanBanks us-gaap:FairValueByLiabilityClass

caty:NonOvernightBorrowings


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value230495220270420420330753207510514575757525
Percentage of AdvancesFromFederalHomeLoanBanks100.0100.032.845.076.4100.062.323.866.723.124.424.415.823.121.49.1

us-gaap:AssetsFairValueDisclosure

us-gaap:AssetsFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312011-12-312011-09-302011-06-302010-12-31
Value117613781484146215061344127513251514127813401372137212301316130012441488158913841548120513201342134315971301121511912012
Percentage of AssetsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetsFairValueDisclosure us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

caty:ImpairedLoans, us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsNonrecurring


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value3731374342253736343360
Percentage of AssetsFairValueDisclosure3.22.32.53.02.81.93.02.72.32.74.5

caty:InvestmentsInVentureCapital, us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsNonrecurring


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value1.3841.5191.6041.6711.7462.0612.1622.583
Percentage of AssetsFairValueDisclosure0.10.10.10.10.10.20.20.2

caty:OtherRealEstateOwned, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsNonrecurring


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value3.4055.2256.497.6257.6258.859.0234.9184.3635.4785.677
Percentage of AssetsFairValueDisclosure0.30.40.40.50.50.70.70.40.30.40.4

caty:OtherRealEstateOwned, us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsNonrecurring


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value4.2384.2384.3434.3434.3434.3434.3434.3434.3434.3434.322
Percentage of AssetsFairValueDisclosure0.40.30.30.30.30.30.30.30.30.30.3

us-gaap:AssetsFairValueDisclosure us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancingReceivablePortfolioSegment

caty:ImpairedLoans, us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsNonrecurring, caty:ResidentialMortgageAndEquityLinesPortfolioSegment


None
Period End2020-06-302020-03-312019-12-312018-09-302018-06-302018-03-312017-12-31
Value8.9745.5865.326.3237.6057.61911
Percentage of AssetsFairValueDisclosure0.80.40.40.50.50.60.8

caty:ImpairedLoans, us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsNonrecurring, us-gaap:CommercialPortfolioSegment


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
Value8.9686.3256.19612110.444.7333.2090.7550.2218
Percentage of AssetsFairValueDisclosure0.80.50.40.90.80.00.40.20.00.01.3

caty:ImpairedLoans, us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsNonrecurring, us-gaap:CommercialRealEstatePortfolioSegment


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
Value1920252525192626262631
Percentage of AssetsFairValueDisclosure1.71.51.71.81.71.52.12.01.72.02.3

us-gaap:AssetsFairValueDisclosure us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency

caty:ImpairedLoans, us-gaap:FairValueMeasurementsNonrecurring


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value3731374342253736343360
Percentage of AssetsFairValueDisclosure3.22.32.53.02.81.93.02.72.32.74.5

caty:InvestmentsInVentureCapital, us-gaap:FairValueMeasurementsNonrecurring


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value1.3841.5191.6041.6711.7462.0612.1622.583
Percentage of AssetsFairValueDisclosure0.10.10.10.10.10.20.20.2

caty:OtherRealEstateOwned, us-gaap:FairValueMeasurementsNonrecurring


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value7.6439.46310111113139.2618.7069.8219.999
Percentage of AssetsFairValueDisclosure0.60.70.70.80.81.01.00.70.60.80.7

us-gaap:AssetsFairValueDisclosure us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancingReceivablePortfolioSegment

caty:ImpairedLoans, us-gaap:FairValueMeasurementsNonrecurring, caty:ResidentialMortgageAndEquityLinesPortfolioSegment


None
Period End2020-06-302020-03-312019-12-312018-09-302018-06-302018-03-312017-12-31
Value8.9745.5865.326.3237.6057.61911
Percentage of AssetsFairValueDisclosure0.80.40.40.50.50.60.8

caty:ImpairedLoans, us-gaap:FairValueMeasurementsNonrecurring, us-gaap:CommercialPortfolioSegment


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
Value8.9686.3256.19612110.444.7333.2090.7550.2218
Percentage of AssetsFairValueDisclosure0.80.50.40.90.80.00.40.20.00.01.3

caty:ImpairedLoans, us-gaap:FairValueMeasurementsNonrecurring, us-gaap:CommercialRealEstatePortfolioSegment


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
Value1920252525192626262631
Percentage of AssetsFairValueDisclosure1.71.51.71.81.71.52.12.01.72.02.3

us-gaap:AssetsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel1


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value124181023282178149222371148277434591440513395245230290290305356669553577481465466415366163161701108.997
Percentage of AssetsFairValueDisclosure10.61.46.92.25.513.311.716.824.511.620.731.743.135.839.030.519.815.518.221.019.829.550.741.243.00.029.20.00.00.00.00.00.00.00.7

us-gaap:FairValueInputsLevel2


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value105113591381143014231165112511021142112910639387807908039049971257129910931242849650789766110211311287161018311282984110213491292
Percentage of AssetsFairValueDisclosure89.498.693.197.894.586.788.283.275.488.479.368.356.964.261.069.580.284.581.779.080.270.549.358.857.00.070.80.00.00.00.00.00.00.099.3

us-gaap:FairValueInputsLevel3


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value0.0130.0240.0390.0310.0440.1810.1840.1680.1760.1950.0910.0970.1080.1020.0790.0750.090.0940.0620.0370.0320.0210.0270.0120.0210.0280.030.0490.0720.0980.1040.1140.1690.1630.218
Percentage of AssetsFairValueDisclosure0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AssetsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsNonrecurring


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value3.4055.2256.497.6257.6258.859.0234.9184.3635.4785.677
Percentage of AssetsFairValueDisclosure0.30.40.40.50.50.70.70.40.30.40.4

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsNonrecurring


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value4337438648324442414067
Percentage of AssetsFairValueDisclosure3.72.72.95.93.22.43.53.22.73.25.1

us-gaap:AssetsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType

us-gaap:FairValueInputsLevel2, us-gaap:ForeignExchangeContract


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value1.5291.1572.4110.9650.6380.4590.3971.8321.7252.3781.1481.3021.7112.0833.3133.3393.3632.3261.6151.8761.9363.4385.0936.1825.8163.1772.9872.9242.4011.911.682.151
Percentage of AssetsFairValueDisclosure0.10.10.20.10.00.00.00.10.10.20.10.10.10.20.20.20.20.20.10.10.10.30.00.40.00.00.00.00.00.00.00.2

us-gaap:FairValueInputsLevel2, us-gaap:InterestRateSwap


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312017-09-302017-06-302017-03-312016-12-312014-09-30
Value3.8423.212.1811.6971.444.487.815.2182.3141.6081.8510.9380.442
Percentage of AssetsFairValueDisclosure0.30.20.10.10.10.30.60.40.20.10.20.10.0

us-gaap:FairValueInputsLevel3, us-gaap:Warrant


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value0.0130.0240.0390.0310.0440.1810.1840.0910.0970.1080.1020.0790.0750.090.0940.0620.0370.0320.0210.0270.0120.0210.0280.030.0490.0720.0980.1040.1140.1690.1630.218
Percentage of AssetsFairValueDisclosure0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AssetsFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsNonrecurring


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value4642499456415347454673
Percentage of AssetsFairValueDisclosure3.93.13.36.43.73.14.23.63.03.65.5

us-gaap:AssetsFairValueDisclosure us-gaap:InvestmentType

us-gaap:ForeignExchangeContract


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value1.5291.1572.4110.9650.6380.4590.3971.8321.7252.3781.1481.3021.7112.0833.3133.3393.3632.3261.6151.8761.9363.4386.182
Percentage of AssetsFairValueDisclosure0.10.10.20.10.00.00.00.10.10.20.10.10.10.20.20.20.20.20.10.10.10.30.4

us-gaap:InterestRateSwap


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312017-09-302017-06-302017-03-312016-12-312014-09-30
Value3.8423.212.1811.6971.444.487.815.2182.3141.6081.8510.9380.442
Percentage of AssetsFairValueDisclosure0.30.20.10.10.10.30.60.40.20.10.20.10.0

us-gaap:Warrant


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value0.0130.0240.0390.0310.0440.1810.1840.0910.0970.1080.1020.0790.0750.090.0940.0620.0370.0320.0210.0270.0120.0210.03
Percentage of AssetsFairValueDisclosure0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax


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
Value24279.8528.9977.5572.6251.7781.150.9831.50613
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax us-gaap:FinancialInstrument

us-gaap:CorporateDebtSecurities


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
Value0.3850.010.6050.5330.4650.2110.8181.020.7861.281.291
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax1.60.06.15.96.28.046.088.780.085.09.2

us-gaap:MortgageBackedSecurities


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
Value23278.5747.7146.3362.3910.960.130.1890.2260.241
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax96.499.387.085.783.891.154.011.319.215.01.7

us-gaap:USGovernmentCorporationsAndAgenciesSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value0.4990.1510.6630.750.7150.0030.00.011
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax2.10.56.78.39.50.10.00.1

us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities


None
Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value0.0450.00.00.00.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax0.20.00.00.00.0

us-gaap:USTreasurySecurities


None
Period End2020-06-302019-12-312019-06-302019-03-312018-12-312018-06-30
Value0.0010.010.0410.020.00.008
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax0.00.10.50.80.00.8

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax


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
Value1.2052.8351.743.994.425152738353116
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax us-gaap:FinancialInstrument

us-gaap:CollateralizedMortgageObligations


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
Value0.0130.0110.0170.0180.0180.0240.0280.0330.030.0270.017
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax1.10.41.00.50.40.20.10.10.10.10.1

us-gaap:CorporateDebtSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-03-312017-12-31
Value0.0111.770.0230.0130.0430.2330.00.0250.017
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax0.962.41.30.31.01.50.00.10.1

us-gaap:MortgageBackedSecurities


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
Value0.5080.6630.8241.3852.5468.191152218176.259
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax42.223.447.434.757.553.455.956.653.354.337.5

us-gaap:USGovernmentCorporationsAndAgenciesSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value0.6640.3910.3190.2730.1580.1660.1950.210.2080.0990.07
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax55.113.818.36.83.61.10.70.50.60.30.4

us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value0.00.5572.3011.666.726111616149.664
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax0.032.057.737.543.843.142.545.644.457.9

us-gaap:USTreasurySecurities


None
Period End2020-06-302019-12-312019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value0.0090.00.00.0110.050.1140.1410.2470.357
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax0.70.00.00.10.20.30.40.82.1

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value11221330144314221468132212671320151012711336136413661230131712831227147615951378154711971324135513541637
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis us-gaap:FinancialInstrument

us-gaap:CollateralizedMortgageObligations


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
Value0.3140.4590.5690.6830.7950.9051.0051.1191.2331.3981.533
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis0.00.00.00.00.10.10.10.10.10.10.1

us-gaap:CorporateDebtSecurities


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
Value1351611729898646464748080
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis12.112.112.07.06.74.95.14.95.06.36.0

us-gaap:MortgageBackedSecurities


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
Value779883880880842701670648676655577
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis69.466.461.061.957.453.152.949.144.851.543.3

us-gaap:USGovernmentCorporationsAndAgenciesSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value1071109092765.6946.0666.7218.3978.7949.047
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis9.68.36.36.55.20.40.50.50.60.70.7

us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value175225350400400400400400400400
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis13.215.624.627.230.231.630.326.531.529.9

us-gaap:USTreasurySecurities


None
Period End2020-06-302019-12-312019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value997449149124199348124249
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis8.95.23.411.39.815.123.19.818.7

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-31
Value1742124933.6494.3681526130.4910.3470.6021.1541.0341.6982.3291.671.5731.2651.2777.801225.246
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss us-gaap:InvestmentType

us-gaap:CollateralizedMortgageObligations


None
Period End2020-06-302020-03-312019-12-312018-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value0.3010.4480.5520.0280.020.0220.0240.0260.0270.0290.030.0320.0340.0340.0350.05
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss0.20.20.10.11.72.11.41.11.61.82.42.50.40.20.01.0

us-gaap:CorporateDebtSecurities


None
Period End2020-06-302020-03-312019-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value38139510.1090.3290.8620.9371.6262.2171.4751.4421.0781.1651.2471.3551.4494.919
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss22.165.510.531.454.774.790.695.895.288.391.785.291.216.06.00.093.8

us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312018-12-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value1112164143.1120.0030.0030.0030.0020.0010.0010.0010.0010.0010.0010.0016.38620240.002
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss6.55.833.355.323.30.60.90.50.20.10.10.00.10.10.10.181.993.00.00.0

us-gaap:USGovernmentCorporationsAndAgenciesSecurities


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value6460520.118
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss36.828.510.60.4

us-gaap:USTreasurySecurities


None
Period End2020-06-302018-12-312017-12-312017-09-30
Value591240.2950.259
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss34.4473.12.252.7

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-31
Value0.4491.7660.2310.3410.0570.2620.633.3438.8098.3711130.2820.1580.546142.5699.6553.9193.9980.1864
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss us-gaap:InvestmentType

us-gaap:CollateralizedMortgageObligations


None
Period End2020-06-302020-03-312019-12-312018-12-312017-12-312017-09-302013-12-31
Value0.00.00.00.00.0170.0050.004
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss0.00.00.00.00.50.10.0

us-gaap:CorporateDebtSecurities


None
Period End2020-06-302020-03-312019-12-312017-12-312017-09-302017-03-312016-06-302016-03-312015-12-312015-09-302013-12-31
Value0.0111.5220.0230.0170.0050.0070.1530.050.050.050.03
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss2.486.210.00.50.10.196.89.20.41.90.0

us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312018-12-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-302014-06-302013-12-31
Value0.010.0040.0360.5023.1472.3592.4773.123.2880.0010.0050.003112.1949.6530.3320.1510.00164
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss2.20.215.679.794.126.829.627.023.80.43.20.580.085.4100.08.583.90.099.9

us-gaap:USGovernmentCorporationsAndAgenciesSecurities


None
Period End2020-06-302020-03-312019-12-312018-12-312017-12-31
Value0.4190.240.1720.0770.07
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss93.313.674.512.22.1

us-gaap:USTreasurySecurities


None
Period End2020-06-302018-12-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-03-312015-12-312014-12-312014-09-302014-06-302013-12-31
Value0.0090.0510.0620.0460.5240.4110.8570.0240.0070.3950.2650.0290.0010.001
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss2.08.11.90.56.33.66.28.51.32.86.616.10.00.0

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value1481771441946014217655611071265113010173021142141071310871473762678771222454612433135831023
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue us-gaap:InvestmentType

us-gaap:CollateralizedMortgageObligations


None
Period End2020-06-302020-03-312019-12-312018-12-312017-12-312017-09-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value0.00.00.00.01.5161.710.0680.0680.0670.00.00.00.00.00.0
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue0.00.00.00.00.30.20.00.00.00.00.00.00.00.00.0

us-gaap:CorporateDebtSecurities


None
Period End2020-06-302020-03-312019-12-312017-12-312017-09-302017-03-312016-06-302016-03-312015-12-312015-09-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value38119515.0155.0294.9939.8479.959.959.95259.979.9849.7589.855526272145185
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue25.967.235.90.90.50.485.123.40.71.40.01.10.00.00.00.051.029.631.676.1

us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312018-12-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value1.440.69343483423593013143280.0441.7240.38910257031087145920.1858887928829013210.2310.0090.0691540.564
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue1.00.430.327.561.532.423.927.832.30.014.90.972.798.6100.098.234.60.00.090.30.00.00.00.00.00.033.40.2

us-gaap:USGovernmentCorporationsAndAgenciesSecurities


None
Period End2020-06-302020-03-312019-12-312018-12-312017-12-31
Value4857483.3885.711
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue32.832.433.81.91.0

us-gaap:USTreasurySecurities


None
Period End2020-06-302018-12-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-03-312015-12-312014-12-312014-09-302014-06-302013-12-312013-06-302012-12-312012-09-302012-06-302012-03-31
Value5912419933956941929914929224374174997599494915999
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue40.370.635.930.745.037.129.449.670.415.999.365.40.08.60.00.040.965.121.6

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value0.7561.0691.509498763910899624563635356049484949490.049804494621106268250141801322511
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue us-gaap:InvestmentType

us-gaap:CollateralizedMortgageObligations


None
Period End2020-06-302020-03-312019-12-312018-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value0.0130.0110.0170.9770.0280.030.0320.0340.0360.0380.044.1e-050.0450.0460.0460.0430.3010.3320.3320.4170.4390.5190.4980.090.238
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue1.71.01.10.10.10.00.10.10.10.10.10.10.00.00.00.00.30.00.00.00.00.20.20.60.1

us-gaap:CorporateDebtSecurities


None
Period End2020-06-302020-03-312019-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value0.00.2480.02929295443424343430.043835636363961001221521952532672491417
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue0.023.20.082.582.582.289.787.887.788.188.088.288.012.910.20.00.094.10.00.00.00.099.799.699.39.7

us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312018-12-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value0.4980.6590.7885071780.1220.0560.0580.0620.2650.0390.0460.0060.0070.0067e-064255516360.1510.2720.1540.160.1630.170.1680.1940.0030.001
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue65.961.652.256.428.60.20.20.20.20.40.10.10.00.00.00.085.988.80.00.00.30.00.00.00.00.10.10.00.0

us-gaap:USGovernmentCorporationsAndAgenciesSecurities


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value0.2450.1510.1472.483
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue32.414.19.70.3

us-gaap:USTreasurySecurities


None
Period End2020-06-302018-12-312017-12-312017-09-302013-06-302012-12-312012-09-302012-06-302012-03-31
Value0.00.049490.00.00.00.00.0
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue0.00.08.088.60.00.00.00.00.0

us-gaap:AvailableForSaleSecuritiesDebtSecurities

us-gaap:AvailableForSaleSecuritiesDebtSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-03-31
Value114613551451142714711309124212831475124113331300
Percentage of AvailableForSaleSecuritiesDebtSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel1


None
Period End2020-06-302020-03-312019-12-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value990.074124199348124277
Percentage of AvailableForSaleSecuritiesDebtSecurities8.70.05.210.015.523.610.020.8

us-gaap:FairValueInputsLevel2


None
Period End2020-06-302020-03-312019-12-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value10461355137611171083112711161056
Percentage of AvailableForSaleSecuritiesDebtSecurities91.3100.094.890.084.576.490.079.2

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType

us-gaap:FairValueInputsLevel1, us-gaap:USTreasurySecurities


None
Period End2020-06-302019-12-312018-12-31
Value9974124
Percentage of AvailableForSaleSecuritiesDebtSecurities8.75.210.0

us-gaap:FairValueInputsLevel2, us-gaap:CollateralizedMortgageObligations


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value0.3010.4480.5520.977
Percentage of AvailableForSaleSecuritiesDebtSecurities0.00.00.00.1

us-gaap:FairValueInputsLevel2, us-gaap:CommercialMortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value802910887656
Percentage of AvailableForSaleSecuritiesDebtSecurities70.067.261.152.9

us-gaap:FairValueInputsLevel2, us-gaap:CorporateDebtSecurities


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value13615917365
Percentage of AvailableForSaleSecuritiesDebtSecurities11.911.811.95.3

us-gaap:FairValueInputsLevel2, us-gaap:USGovernmentCorporationsAndAgenciesSecurities


None
Period End2020-06-302020-03-312019-12-31
Value10711090
Percentage of AvailableForSaleSecuritiesDebtSecurities9.48.16.3

us-gaap:FairValueInputsLevel2, us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities


None
Period End2020-03-312019-12-312018-12-31
Value175224388
Percentage of AvailableForSaleSecuritiesDebtSecurities12.915.531.3

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:FinancialInstrument

us-gaap:CollateralizedMortgageObligations


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
Value0.3010.4480.5520.6650.7770.8810.9771.0861.2031.3711.516
Percentage of AvailableForSaleSecuritiesDebtSecurities0.00.00.00.00.10.10.10.10.10.10.1

us-gaap:CorporateDebtSecurities


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
Value1361591739999646566758181
Percentage of AvailableForSaleSecuritiesDebtSecurities11.911.811.97.06.75.05.35.15.16.56.1

us-gaap:MortgageBackedSecurities


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
Value802910887886846695656626658638571
Percentage of AvailableForSaleSecuritiesDebtSecurities70.067.261.162.157.553.152.948.844.651.442.9

us-gaap:USGovernmentCorporationsAndAgenciesSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value1071109092775.5315.8716.5118.1898.6958.988
Percentage of AvailableForSaleSecuritiesDebtSecurities9.48.16.36.55.20.40.50.50.60.70.7

us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value175224347398393388383383385390
Percentage of AvailableForSaleSecuritiesDebtSecurities12.915.524.427.130.031.329.926.031.129.3

us-gaap:USTreasurySecurities


None
Period End2020-06-302019-12-312019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value997449149124199348124249
Percentage of AvailableForSaleSecuritiesDebtSecurities8.75.23.411.410.015.523.610.018.7

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:InvestmentType

us-gaap:CollateralizedMortgageObligations


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value0.3010.4480.5520.977
Percentage of AvailableForSaleSecuritiesDebtSecurities0.00.00.00.1

us-gaap:CommercialMortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value802910887656
Percentage of AvailableForSaleSecuritiesDebtSecurities70.067.261.152.9

us-gaap:CorporateDebtSecurities


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value13615917365
Percentage of AvailableForSaleSecuritiesDebtSecurities11.911.811.95.3

us-gaap:USGovernmentCorporationsAndAgenciesSecurities


None
Period End2020-06-302020-03-312019-12-31
Value10711090
Percentage of AvailableForSaleSecuritiesDebtSecurities9.48.16.3

us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities


None
Period End2020-03-312019-12-312018-12-31
Value175224388
Percentage of AvailableForSaleSecuritiesDebtSecurities12.915.531.3

us-gaap:USTreasurySecurities


None
Period End2020-06-302019-12-312018-12-31
Value9974124
Percentage of AvailableForSaleSecuritiesDebtSecurities8.75.210.0

us-gaap:AvailableForSaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsLessThanOneYear

us-gaap:AvailableForSaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsLessThanOneYear


None
Period End2020-06-302020-03-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value25698.034819.0349370.014.063.030.047.08.030.0
Percentage of AvailableForSaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsLessThanOneYear100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsLessThanOneYear us-gaap:InvestmentType

us-gaap:CollateralizedMortgageObligations


None
Period End2020-06-302020-03-312019-12-312018-12-312017-12-312013-12-31
Value301.0448.0552.0977.05.02.0
Percentage of AvailableForSaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsLessThanOneYear1.21.30.26978.67.96.7

us-gaap:CorporateDebtSecurities


None
Period End2020-06-302020-03-312019-12-312017-12-312015-12-312013-12-312012-12-31
Value019752.001.01.01.04.0
Percentage of AvailableForSaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsLessThanOneYear0.056.70.01.62.13.30.0

us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312018-12-312017-12-312016-12-312015-12-312013-12-312012-12-31
Value9921.011585.0120800.08.048.016.035.025.02.0
Percentage of AvailableForSaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsLessThanOneYear38.633.334.657.176.253.374.583.30.0

us-gaap:USGovernmentCorporationsAndAgenciesSecurities


None
Period End2020-06-302020-03-312019-12-312018-12-312017-12-31
Value15476.03034.03570.02.03.0
Percentage of AvailableForSaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsLessThanOneYear60.28.71.014.34.8

us-gaap:USTreasurySecurities


None
Period End2020-06-302018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value04.04.06.05.06.01.01.0
Percentage of AvailableForSaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsLessThanOneYear0.028.66.320.010.675.03.30.0

us-gaap:AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsGreaterThanOrEqualToOneYear

us-gaap:AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsGreaterThanOrEqualToOneYear


None
Period End2020-06-302020-03-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value1205.02835.01740.090.024.07.07.022.019.0
Percentage of AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsGreaterThanOrEqualToOneYear100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsGreaterThanOrEqualToOneYear us-gaap:InvestmentType

us-gaap:CollateralizedMortgageObligations


None
Period End2020-06-302020-03-312019-12-312018-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value13.011.017.06.01.01.01.03.04.0
Percentage of AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsGreaterThanOrEqualToOneYear1.10.41.06.714.314.34.515.80.0

us-gaap:CorporateDebtSecurities


None
Period End2020-06-302020-03-312019-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value11.01770.023.02.03.04.08.022.0
Percentage of AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsGreaterThanOrEqualToOneYear0.962.41.328.642.918.242.10.0

us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value508.0663.0824.074.013.03.02.016.07.06.0
Percentage of AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsGreaterThanOrEqualToOneYear42.223.447.482.254.242.928.672.736.80.0

us-gaap:USGovernmentCorporationsAndAgenciesSecurities


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value664.0391.0319.02.0
Percentage of AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsGreaterThanOrEqualToOneYear55.113.818.32.2

us-gaap:USTreasurySecurities


None
Period End2020-06-302018-12-312017-12-31
Value9.051.02.0
Percentage of AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsGreaterThanOrEqualToOneYear0.756.78.3

us-gaap:BankAcceptancesExecutedAndOutstanding

us-gaap:BankAcceptancesExecutedAndOutstanding


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value105.17510129.616202210221513129.8971112132626403526173521192332422322413040293724172214
Percentage of BankAcceptancesExecutedAndOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationContingentConsiderationLiability

us-gaap:BusinessCombinationContingentConsiderationLiability


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
Value7.7537.7167.6447.60218181818363535136
Percentage of BusinessCombinationContingentConsiderationLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:CashAndCashEquivalentsFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value148136177225
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.0100.0

us-gaap:CashAndCashEquivalentsFairValueDisclosure us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value148136177257206194225204195199247167218
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.00.00.00.0100.00.00.00.00.00.00.0

us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value148136177257206194225204195199247167218
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.00.00.00.0100.00.00.00.00.00.00.0

us-gaap:CashAndDueFromBanks

us-gaap:CashAndDueFromBanks


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value1481361772572061942252041951992471671601902182032291921801961661821762002451611532011331551441141341191172081288787
Percentage of CashAndDueFromBanks100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value15735005938255575386005824047235341185
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CollateralAlreadyPostedAggregateFairValue us-gaap:FairValueByAssetClass

us-gaap:CollateralAlreadyPostedAggregateFairValue

us-gaap:Cash


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
Value13137.19.16.94.31.80.00.3611.34.56.9
Percentage of CollateralAlreadyPostedAggregateFairValue100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0

us-gaap:DebtInstrumentInterestRateEffectivePercentage us-gaap:BusinessAcquisition

us-gaap:DebtInstrumentInterestRateEffectivePercentage

caty:SinoPacBancorp


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value0.0180.02950.0360.03820.040.03390.028
Percentage of DebtInstrumentInterestRateEffectivePercentage100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentInterestRateEffectivePercentage us-gaap:LongtermDebtType

us-gaap:JuniorSubordinatedDebt


None
Period End2020-06-302020-03-312019-12-31
Value0.02480.03150.0409
Percentage of DebtInstrumentInterestRateEffectivePercentage137.8106.80.0

us-gaap:Deposits

us-gaap:Deposits


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value16281150901469214658143621408613702135811310413012126891256111463115871167410938104711032410509102389338911387838694858082327981791877107425738373537384735972297125710970796991
Percentage of Deposits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:DepositsFairValueDisclosure

us-gaap:FairValueInputsLevel3, us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value16334151331471913754
Percentage of DepositsFairValueDisclosure100.0100.0100.0100.0

us-gaap:DepositsFairValueDisclosure us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value16281150901469214658143621408613702135811310413012126891256111674
Percentage of DepositsFairValueDisclosure99.799.799.80.00.00.099.60.00.00.00.00.00.0

us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value16334151331471914703144171414313754136171312113032127001257311680
Percentage of DepositsFairValueDisclosure100.0100.0100.00.00.00.0100.00.00.00.00.00.00.0

us-gaap:DepositsMoneyMarketDeposits

us-gaap:DepositsMoneyMarketDeposits


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value2982248222602095190918392027213422632203224823702267229521982131206619231905168516821551153815141410126112861303112111241186108310209819519369421012982
Percentage of DepositsMoneyMarketDeposits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepositsNegotiableOrderOfWithdrawalNOW

us-gaap:DepositsNegotiableOrderOfWithdrawalNOW


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-312016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value167115141358128212671269136514101230992966901871822778766698692683653629622593569500490451435417415418
Percentage of DepositsNegotiableOrderOfWithdrawalNOW100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepositsSavingsDeposits

us-gaap:DepositsSavingsDeposits


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value743710758721716710738747790801857925884727719633620602618596562557533542501523499498484472473460444434420426382390385
Percentage of DepositsSavingsDeposits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeAssetNotionalAmount

us-gaap:DerivativeAssetNotionalAmount


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
Value50321301390.001358467756726681514155206424361
Percentage of DerivativeAssetNotionalAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeAssets

us-gaap:DerivativeAssets


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312011-06-302010-12-31
Value3.8423.212.1811.6971.444.487.811814115.2182.3141.6081.8510.938152206
Percentage of DerivativeAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeAssets us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

caty:Warrants1, us-gaap:FairValueInputsLevel3, us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-31
Value0.0130.0240.039
Percentage of DerivativeAssets0.30.71.8

us-gaap:DerivativeAssets us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementBasis

caty:Warrants1, us-gaap:CarryingReportedAmountFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value0.0130.0240.0390.0310.0440.1810.1840.1680.1760.1950.0910.0970.079
Percentage of DerivativeAssets0.30.71.81.83.14.02.40.91.21.71.74.28.4

caty:Warrants1, us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value0.0130.0240.0390.0310.0440.1810.1840.1680.1760.1950.0910.0970.079
Percentage of DerivativeAssets0.30.71.81.83.14.02.40.91.21.71.74.28.4

us-gaap:DerivativeAverageBasisSpreadOnVariableRate us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation, us-gaap:VariableRate

us-gaap:DerivativeAverageBasisSpreadOnVariableRate

us-gaap:InterestRateSwap, us-gaap:FairValueHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:LondonInterbankOfferedRateLIBOR


None
Period End2020-06-302020-03-312019-12-31
Value0.02530.02580.0262
Percentage of DerivativeAverageBasisSpreadOnVariableRate100.0100.0100.0

us-gaap:DerivativeAverageFixedInterestRate us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation

us-gaap:DerivativeAverageFixedInterestRate

us-gaap:InterestRateSwap, us-gaap:FairValueHedging, us-gaap:DesignatedAsHedgingInstrument


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
Value0.04590.04650.04710.04710.04720.0470.04720.04710.0470.0460.0460.04550.04570.04620.04610.04630.04650.0468
Percentage of DerivativeAverageFixedInterestRate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeAverageVariableInterestRate us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation

us-gaap:DerivativeAverageVariableInterestRate

us-gaap:InterestRateSwap, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument


None
Period End2020-06-302020-03-312019-12-312018-12-312018-09-302014-05-31
Value0.00640.00980.02260.02780.02350.0063
Percentage of DerivativeAverageVariableInterestRate100.0100.0100.0100.0100.0100.0

us-gaap:InterestRateSwap, us-gaap:FairValueHedging, us-gaap:DesignatedAsHedgingInstrument


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
Value0.03570.04160.04870.05010.0510.0510.05070.04780.0470.0450.0430.04160.04070.0390.03820.0370.03650.0364
Percentage of DerivativeAverageVariableInterestRate557.8424.5215.50.00.00.0182.4203.40.00.00.00.00.00.00.00.00.00.0

us-gaap:DerivativeFairValueOfDerivativeNet us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation

us-gaap:DerivativeFairValueOfDerivativeNet

caty:SpotForwardAndSwapContractsWithNegativeFairValue, us-gaap:Nondesignated


None
Period End2020-06-302020-03-312019-12-31
Value-531000.0-4211000.0-1415000.0
Percentage of DerivativeFairValueOfDerivativeNet100.0100.0100.0

caty:SpotForwardAndSwapContractsWithPositiveFairValue, us-gaap:Nondesignated


None
Period End2020-06-302020-03-312019-12-31
Value1529000.01157000.02411000.0
Percentage of DerivativeFairValueOfDerivativeNet-287.9-27.5-170.4

us-gaap:ForeignExchangeForward, us-gaap:Nondesignated


None
Period End2020-06-302020-03-312019-12-31
Value-6000.0-14000.0-7000.0
Percentage of DerivativeFairValueOfDerivativeNet1.10.30.5

us-gaap:DerivativeLiabilities

us-gaap:DerivativeLiabilities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value33321417135.7271.5430.1572.6995.0494.7713.2283.7441518146.4963.7264.0958.614.626
Percentage of DerivativeLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeLiabilityFairValueOfCollateral

us-gaap:DerivativeLiabilityFairValueOfCollateral


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value33321422165.4971.5430.1572.6995.0494.7713.2283.7441518146.4963.7264.0958.614.626
Percentage of DerivativeLiabilityFairValueOfCollateral100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeLiabilityNotionalAmount

us-gaap:DerivativeLiabilityNotionalAmount


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value6977136025810.00534626523145510358119119477479476459457298299300
Percentage of DerivativeLiabilityNotionalAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeNotionalAmount us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeNotionalAmount

caty:LoansReceivableWithPartialTermHedgingDesignation


None
Period End2020-06-302020-03-31
Value4545
Percentage of DerivativeNotionalAmount100.0100.0

us-gaap:DerivativeNotionalAmount us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation

us-gaap:InterestRateSwap, us-gaap:FairValueHedging, us-gaap:DesignatedAsHedgingInstrument


None
Period End2020-06-302020-03-312019-12-31
Value527561579
Percentage of DerivativeNotionalAmount1172.21243.00.0

us-gaap:DerivativeNotionalAmount us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation

caty:SpotForwardAndSwapContractsWithNegativeFairValue, us-gaap:Nondesignated


None
Period End2020-06-302020-03-312019-12-31
Value179216127
Percentage of DerivativeNotionalAmount398.2478.80.0

caty:SpotForwardAndSwapContractsWithPositiveFairValue, us-gaap:Nondesignated


None
Period End2020-06-302020-03-312019-12-31
Value101110146
Percentage of DerivativeNotionalAmount224.5244.40.0

us-gaap:ForeignExchangeForward, us-gaap:Nondesignated


None
Period End2020-06-302020-03-312019-12-31
Value0.532.4960.908
Percentage of DerivativeNotionalAmount1.25.50.0

us-gaap:DueFromCustomerAcceptances

us-gaap:DueFromCustomerAcceptances


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value105.17510129.616202210221513129.8971112132626403526173521192332422322413040293724172214
Percentage of DueFromCustomerAcceptances100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized us-gaap:AwardType

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:RestrictedStockUnitsRSU


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-09-302017-06-302012-12-312012-09-302012-06-302012-03-31
Value6.17.7116.88.61511139.1102.71.72.21.8
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate us-gaap:FairValueByLiabilityClass

us-gaap:FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate

caty:NonOvernightBorrowings


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value0.02160.01130.02260.02150.02290.02470.02420.01990.01780.01530.01410.01350.01480.01480.01480.0113
Percentage of FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FederalHomeLoanBankBorrowingsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

us-gaap:FederalHomeLoanBankBorrowingsFairValueDisclosure

us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value241502674529
Percentage of FederalHomeLoanBankBorrowingsFairValueDisclosure100.0100.0100.0100.0

us-gaap:FederalHomeLoanBankBorrowingsFairValueDisclosure us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value230495670600550420530315480325430595350
Percentage of FederalHomeLoanBankBorrowingsFairValueDisclosure95.498.499.30.00.00.0100.10.00.00.00.00.00.0

us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value241502674603551420529314479324429595350
Percentage of FederalHomeLoanBankBorrowingsFairValueDisclosure100.0100.0100.00.00.00.0100.00.00.00.00.00.00.0

us-gaap:FederalHomeLoanBankStock

us-gaap:FederalHomeLoanBankStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value171718171717171717172330171717181717171717253034252925283237414547505256586163
Percentage of FederalHomeLoanBankStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableAllowanceForCreditLosses

us-gaap:FinancingReceivableAllowanceForCreditLosses


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312015-01-092014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value169148123125122122122123121122123121115115118117122134138150153156161161169169169173181179183206209229241245257255233211122
Percentage of FinancingReceivableAllowanceForCreditLosses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableAllowanceForCreditLosses us-gaap:FinancingReceivablePortfolioSegment

caty:InstallmentAndOtherLoans


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
Value0.00.00.0190.0250.030.0340.0180.0260.0190.0210.0220.0240.0170.0140.0110.0080.0120.0070.0090.0230.025
Percentage of FinancingReceivableAllowanceForCreditLosses0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

caty:RealEstateConstructionPortfolioSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312015-01-092014-12-312014-09-302014-06-302014-03-312013-12-31
Value2623192121201921202124221719239.2451012222626232727349.5551011
Percentage of FinancingReceivableAllowanceForCreditLosses15.715.715.817.217.116.916.017.217.017.920.118.115.417.119.67.88.79.516.017.617.114.917.117.120.55.76.36.9

caty:ResidentialMortgageAndEquityLinesPortfolioSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312015-01-092014-12-312014-09-302014-06-302014-03-312013-12-31
Value19171312141314121211111114121110151411121211111111121212
Percentage of FinancingReceivableAllowanceForCreditLosses11.511.710.69.711.511.411.710.59.99.38.99.112.410.89.88.512.611.18.08.48.07.57.27.26.87.67.36.9

us-gaap:CommercialPortfolioSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312015-01-092014-12-312014-09-302014-06-302014-03-312013-12-31
Value82675758545454565554495146474953505656544749474756636465
Percentage of FinancingReceivableAllowanceForCreditLosses48.545.746.346.544.344.744.945.845.344.740.442.040.440.941.445.541.141.940.436.631.031.829.429.433.337.438.337.4

us-gaap:CommercialRealEstatePortfolioSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312015-01-092014-12-312014-09-302014-06-302014-03-312013-12-31
Value41393333333333323334373736353444465049566771747466838184
Percentage of FinancingReceivableAllowanceForCreditLosses24.226.927.326.627.027.027.426.627.928.030.530.831.831.129.338.137.537.535.637.343.845.746.346.339.449.348.148.7

us-gaap:FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment

us-gaap:FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment


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
Value162144119124120121118119118120121118114113116114115127131135145145149155159154160158166161171179185189198201215232
Percentage of FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment us-gaap:FinancingReceivablePortfolioSegment

caty:RealEstateConstructionPortfolioSegment


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
Value2623192121201921202124221719239.245101222262626
Percentage of FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment16.516.016.217.417.417.116.517.717.518.120.518.515.617.520.08.09.310.016.919.518.117.8

caty:ResidentialMortgageAndEquityLinesPortfolioSegment


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
Value1917121113131312111110101312119.682151410121111
Percentage of FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment11.911.810.79.611.511.311.110.59.99.18.89.012.210.79.78.413.111.58.29.18.27.4

us-gaap:CommercialPortfolioSegment


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
Value75645457535453545254494946464752495655474646
Percentage of FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment46.544.945.446.544.244.844.845.144.645.341.141.740.840.840.845.542.744.142.434.932.030.9

us-gaap:CommercialRealEstatePortfolioSegment


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
Value40393332323232313233353635353443404342496065
Percentage of FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment25.227.327.626.526.926.827.526.627.927.429.630.831.431.029.538.034.934.432.536.641.743.9

us-gaap:FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1

us-gaap:FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1


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
Value7.5253.4513.2361.5011.6861.4143.8023.7043.8331.5022.1342.6061.5612.2752.7962.9437.7247.197.749147.9841111139.6091413231217125.4257.2425.607198
Percentage of FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1 us-gaap:FinancingReceivablePortfolioSegment

caty:RealEstateConstructionPortfolioSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312014-12-31
Value0.00.00.00.00.00.01.077
Percentage of FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment10.00.00.00.00.00.09.1

caty:ResidentialMortgageAndEquityLinesPortfolioSegment


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
Value0.3070.2190.220.2210.2340.2491.0880.2810.3340.3460.3530.3220.3980.3950.3960.3750.4380.3720.4270.3730.4640.465
Percentage of FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment14.16.36.814.713.917.628.67.68.723.016.512.425.517.414.212.75.75.25.52.65.83.9

us-gaap:CommercialPortfolioSegment


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
Value6.8952.8272.5430.7440.8320.4981.8372.5062.4630.0110.0431.4610.1451.0621.8271.321.3950.2250.537.5610.9661.263
Percentage of FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment191.681.978.649.649.335.248.367.764.30.72.056.19.346.765.344.918.13.16.852.812.110.7

us-gaap:CommercialRealEstatePortfolioSegment


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
Value0.3230.4050.4730.5360.620.6670.8770.9171.0361.1451.7380.8231.0180.8180.5731.2485.8916.5936.7926.3896.5548.993
Percentage of FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment14.311.714.635.736.847.223.124.827.076.281.431.665.236.020.542.476.391.787.744.682.176.2

us-gaap:FinancingReceivableCollectivelyEvaluatedForImpairment

us-gaap:FinancingReceivableCollectivelyEvaluatedForImpairment


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
Value155201544614999146391447314157138881353013211128821275212469114271123711086108791039510228100299878933590448739866983768112788376167483713371806994676766336737669665476501
Percentage of FinancingReceivableCollectivelyEvaluatedForImpairment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableCollectivelyEvaluatedForImpairment us-gaap:FinancingReceivablePortfolioSegment

caty:InstallmentAndOtherLoans


None
Period End2020-06-302020-03-31
Value0.6882.116
Percentage of FinancingReceivableCollectivelyEvaluatedForImpairment0.00.0

caty:RealEstateConstructionPortfolioSegment


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
Value619572575589594562576592573579670669502521542509475441419382348272
Percentage of FinancingReceivableCollectivelyEvaluatedForImpairment4.03.73.84.04.14.04.24.44.34.55.35.44.44.64.94.74.64.34.23.93.73.1

caty:ResidentialMortgageAndEquityLinesPortfolioSegment


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
Value4565454744244313425640633930377735553361322930902903273225982481230021942084197518721726
Percentage of FinancingReceivableCollectivelyEvaluatedForImpairment29.429.429.529.529.428.728.327.926.926.125.324.825.424.323.422.822.121.520.820.020.119.8

us-gaap:CommercialPortfolioSegment


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
Value2978293727542634272026932705262925232391241723822197213222202216216922392303233423632359
Percentage of FinancingReceivableCollectivelyEvaluatedForImpairment19.219.018.418.018.819.019.519.419.118.619.019.119.219.020.020.420.921.923.023.625.327.0

us-gaap:CommercialRealEstatePortfolioSegment


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
Value7355738572407097689668306672652565536545643063215818584657205669544553515219518047464377
Percentage of FinancingReceivableCollectivelyEvaluatedForImpairment47.447.848.348.547.648.248.048.249.650.850.450.750.952.051.652.152.452.352.052.450.850.1

us-gaap:FinancingReceivableIndividuallyEvaluatedForImpairment

us-gaap:FinancingReceivableIndividuallyEvaluatedForImpairment


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
Value88887588119119106117137132117127143128115130127134133161166180174188188189200215211230248265276275321320374366
Percentage of FinancingReceivableIndividuallyEvaluatedForImpairment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableIndividuallyEvaluatedForImpairment us-gaap:FinancingReceivablePortfolioSegment

caty:RealEstateConstructionPortfolioSegment


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
Value4.4334.4824.584.6294.7024.8014.8734.9228.048.1138.1852145335.4585.5076.0811122222225
Percentage of FinancingReceivableIndividuallyEvaluatedForImpairment5.05.16.05.23.94.04.64.25.96.17.017.031.325.74.74.24.88.816.413.813.614.7

caty:ResidentialMortgageAndEquityLinesPortfolioSegment


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
Value18111112121313131414131314161718181716161616
Percentage of FinancingReceivableIndividuallyEvaluatedForImpairment21.313.415.314.310.811.112.711.410.610.911.110.510.212.515.113.914.112.712.310.010.29.2

us-gaap:CommercialPortfolioSegment


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
Value29352433524336445244433718192732181113272323
Percentage of FinancingReceivableIndividuallyEvaluatedForImpairment33.239.932.438.044.136.134.637.838.434.037.129.313.115.524.124.914.28.710.117.114.313.5

us-gaap:CommercialRealEstatePortfolioSegment


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
Value3536353749585154616452556559647485948195102109
Percentage of FinancingReceivableIndividuallyEvaluatedForImpairment40.441.646.242.641.148.848.246.545.249.044.943.245.446.256.057.066.969.861.159.061.962.6

us-gaap:FinancingReceivableRecordedInvestmentCurrent

us-gaap:FinancingReceivableRecordedInvestmentCurrent


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
Value15481153841494414635145051414813889135431323412918127711250411470112371107410888104311024910084995494088801
Percentage of FinancingReceivableRecordedInvestmentCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableRecordedInvestmentCurrent us-gaap:FinancingReceivablePortfolioSegment

caty:InstallmentAndOtherLoans


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value0.6842.1165.055.0876.6317.6334.3495.5754.064.2085.0674.7225.5573.993
Percentage of FinancingReceivableRecordedInvestmentCurrent0.00.00.00.00.00.10.00.00.00.00.00.00.00.0

caty:RealEstateConstructionPortfolioSegment


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
Value619572562589591543573592573578667677531545526509475445417388353277
Percentage of FinancingReceivableRecordedInvestmentCurrent4.03.73.84.04.13.84.14.44.34.55.25.44.64.94.84.74.64.34.13.93.83.2

caty:ResidentialMortgageAndEquityLinesPortfolioSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312015-09-302015-06-302014-12-31
Value455945124402431842614057392637833560336332283097291027362602249023102088198318811728
Percentage of FinancingReceivableRecordedInvestmentCurrent29.529.329.529.529.428.728.327.926.926.025.324.825.424.423.522.922.120.719.920.019.6

us-gaap:CommercialPortfolioSegment


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
Value2941290727182606273826962694260725132404243023762169211021822187214922052304233723592362
Percentage of FinancingReceivableRecordedInvestmentCurrent19.018.918.217.818.919.119.419.319.018.619.019.018.918.819.720.120.621.522.923.525.126.8

us-gaap:CommercialRealEstatePortfolioSegment


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
Value7359738972557115690768436690655465836566643963485853584057585697549253985271523848084429
Percentage of FinancingReceivableRecordedInvestmentCurrent47.548.048.548.647.648.448.248.449.750.850.450.851.052.052.052.352.752.752.352.651.150.3

us-gaap:FinancingReceivableRecordedInvestmentNonaccrualStatus

us-gaap:FinancingReceivableRecordedInvestmentNonaccrualStatus


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-312011-12-312011-09-302011-06-302010-12-31
Value56534047545641425249486564474944534452716680706583201192256242
Percentage of FinancingReceivableRecordedInvestmentNonaccrualStatus100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableRecordedInvestmentNonaccrualStatus us-gaap:FinancingReceivablePortfolioSegment

caty:RealEstateConstructionPortfolioSegment


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
Value4.4334.4824.584.6294.7024.8014.8724.9228.048.1138.18514165.3615.4585.5076.0816.17916161619
Percentage of FinancingReceivableRecordedInvestmentNonaccrualStatus7.98.311.39.88.68.511.711.615.216.416.821.825.911.211.012.411.413.831.323.325.528.5

caty:ResidentialMortgageAndEquityLinesPortfolioSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312015-09-302015-06-302014-12-31
Value146.9496.6347.2717.4617.4437.5277.1988.3227.5196.4866.7256.9477.6138.4368.5248.0817.0486.698.0477.611
Percentage of FinancingReceivableRecordedInvestmentNonaccrualStatus24.812.916.415.413.613.118.017.015.815.213.310.310.815.917.019.215.213.59.412.210.8

us-gaap:CommercialPortfolioSegment


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
Value2730192228261817191514151313159.2518.2512.6453.545147.8786.983
Percentage of FinancingReceivableRecordedInvestmentNonaccrualStatus48.056.747.848.751.346.745.040.436.432.329.324.420.428.931.620.915.55.96.820.711.910.0

us-gaap:CommercialRealEstatePortfolioSegment


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
Value10119.92812141710131717192827212021302825333335
Percentage of FinancingReceivableRecordedInvestmentNonaccrualStatus19.322.124.526.126.531.625.431.132.536.040.643.542.944.040.447.557.863.948.446.650.450.7

us-gaap:FinancingReceivableRecordedInvestmentPastDue

us-gaap:FinancingReceivableRecordedInvestmentPastDue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-312011-12-312011-09-302011-06-302010-12-31
Value12614913193871281061031139698921001271261229111378859311011281140269235299321
Percentage of FinancingReceivableRecordedInvestmentPastDue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableRecordedInvestmentPastDue us-gaap:FinancingReceivablePortfolioSegment

caty:InstallmentAndOtherLoans


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312018-03-312017-12-31
Value0.0040.00.00.00.00.00.2650.103
Percentage of FinancingReceivableRecordedInvestmentPastDue0.00.00.00.00.00.00.30.1

caty:RealEstateConstructionPortfolioSegment


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
Value4.4334.482174.6297.529248.0284.9228.049.0331114168.406215.5076.0817.70823161621
Percentage of FinancingReceivableRecordedInvestmentPastDue3.53.013.15.08.619.17.64.77.19.411.415.416.56.617.14.56.66.830.119.418.119.0

caty:ResidentialMortgageAndEquityLinesPortfolioSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312015-09-302015-06-302014-12-31
Value2346337.5577.97219177.1981011136.8147.59111129.0018.701137.2968.28113
Percentage of FinancingReceivableRecordedInvestmentPastDue18.931.325.68.19.115.316.56.99.012.114.07.47.69.110.17.49.516.68.58.912.4

us-gaap:CommercialPortfolioSegment


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
Value66656061343947666331304346416561384512242719
Percentage of FinancingReceivableRecordedInvestmentPastDue52.543.746.065.938.830.444.663.755.532.831.046.646.332.851.850.341.540.315.528.729.617.6

us-gaap:CommercialRealEstatePortfolioSegment


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
Value31322019384533253243422829652646394629374057
Percentage of FinancingReceivableRecordedInvestmentPastDue25.022.015.421.043.535.231.324.628.445.543.630.729.751.521.037.842.441.137.843.443.450.9

us-gaap:FinancingReceivableRecordedInvestmentPastDue us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivablesPeriodPastDue

caty:InstallmentAndOtherLoans, us-gaap:FinancingReceivables30To59DaysPastDue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312018-03-312017-12-31
Value0.00.00.00.00.00.00.170.103
Percentage of FinancingReceivableRecordedInvestmentPastDue0.00.00.00.00.00.00.20.1

caty:InstallmentAndOtherLoans, us-gaap:FinancingReceivables60To89DaysPastDue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312018-03-31
Value0.0040.00.00.00.00.00.095
Percentage of FinancingReceivableRecordedInvestmentPastDue0.00.00.00.00.00.00.1

caty:RealEstateConstructionPortfolioSegment, us-gaap:FinancingReceivables30To59DaysPastDue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-03-312017-12-312017-03-312016-12-312016-03-312015-12-312014-12-31
Value0.00.05.8460.02.827190.00.923.0283.045101.5297.2851.416
Percentage of FinancingReceivableRecordedInvestmentPastDue0.00.04.40.03.215.40.01.03.12.48.21.39.31.3

caty:RealEstateConstructionPortfolioSegment, us-gaap:FinancingReceivables60To89DaysPastDue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312016-12-31
Value0.00.06.7530.00.03.1565.835
Percentage of FinancingReceivableRecordedInvestmentPastDue0.00.05.10.00.03.04.6

caty:ResidentialMortgageAndEquityLinesPortfolioSegment, us-gaap:FinancingReceivables30To59DaysPastDue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-06-302015-12-312015-09-302014-12-31
Value1.71539260.2860.0129.6870.4234.0946.6130.1644.0674.390.2424.9590.0955.634
Percentage of FinancingReceivableRecordedInvestmentPastDue1.426.719.80.30.09.59.10.44.26.70.23.23.50.36.30.15.0

caty:ResidentialMortgageAndEquityLinesPortfolioSegment, us-gaap:FinancingReceivables60To89DaysPastDue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312018-06-302017-12-312017-09-302017-06-302016-09-302016-06-302015-12-312015-09-302015-06-302014-12-31
Value7.8160.00.9650.00.5110.3361.5420.7320.0890.480.4770.3781.0380.5110.2340.732
Percentage of FinancingReceivableRecordedInvestmentPastDue6.20.00.70.00.60.31.40.70.10.50.40.41.30.60.30.7

caty:ResidentialMortgageAndEquityLinesPortfolioSegment, us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value0.4280.00.00.00.00.0
Percentage of FinancingReceivableRecordedInvestmentPastDue0.30.00.00.00.00.0

us-gaap:CommercialPortfolioSegment, us-gaap:FinancingReceivables30To59DaysPastDue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value182624294.9981025289.537118.4123227224523358.3675.8651711
Percentage of FinancingReceivableRecordedInvestmentPastDue15.017.618.832.05.78.224.027.28.411.29.132.321.717.937.225.231.010.76.918.910.3

us-gaap:CommercialPortfolioSegment, us-gaap:FinancingReceivables60To89DaysPastDue


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
Value1.7067.4339.9548.7360.972.0932.45417340.1465.192140.5150.315276.8076.7437.920.2213.8962.1381.238
Percentage of FinancingReceivableRecordedInvestmentPastDue1.35.07.69.41.11.62.316.730.30.25.316.00.50.221.45.67.37.00.34.62.31.1

us-gaap:CommercialPortfolioSegment, us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312018-09-302017-09-302017-06-30
Value181.1996.4090.00.00.5143.4673.90.495
Percentage of FinancingReceivableRecordedInvestmentPastDue14.80.84.90.00.00.53.34.20.5

us-gaap:CommercialRealEstatePortfolioSegment, us-gaap:FinancingReceivables30To59DaysPastDue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value15177.6942.9264.9324100.84126172.258305.886125.272172.2431.1144.13217
Percentage of FinancingReceivableRecordedInvestmentPastDue12.311.45.93.15.618.710.20.727.017.82.224.14.610.65.715.12.91.34.415.7

us-gaap:CommercialRealEstatePortfolioSegment, us-gaap:FinancingReceivables60To89DaysPastDue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value3.0030.6832.6093.6874.2643.3248.5459.157145.6020.115130.7123.0081.1442.2230.2413.1513.909
Percentage of FinancingReceivableRecordedInvestmentPastDue2.40.52.03.94.92.68.18.812.65.70.110.80.610.03.31.02.80.33.43.5

us-gaap:CommercialRealEstatePortfolioSegment, us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312018-09-302015-09-30
Value2.2283.3320.00.683143.2593.2142.573
Percentage of FinancingReceivableRecordedInvestmentPastDue1.82.20.00.716.53.13.13.0

us-gaap:FinancingReceivableRecordedInvestmentPastDue us-gaap:FinancingReceivablesPeriodPastDue

us-gaap:FinancingReceivables30To59DaysPastDue


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
Value36836433126645281046388.412346543582860227.0742136
Percentage of FinancingReceivableRecordedInvestmentPastDue28.655.648.935.414.551.843.427.29.548.538.99.134.751.434.247.831.252.829.18.323.332.3

us-gaap:FinancingReceivables60To89DaysPastDue


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
Value128.11620125.7455.4171426500.24111141.11143319109.0643.4824.6485.5235.879
Percentage of FinancingReceivableRecordedInvestmentPastDue9.95.415.413.36.54.213.725.544.20.311.716.11.111.126.615.911.08.04.45.45.95.2

us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312018-09-302017-09-302017-06-302015-09-30
Value214.5316.4090.683143.7736.6813.90.4952.573
Percentage of FinancingReceivableRecordedInvestmentPastDue16.93.04.90.716.53.66.44.20.53.0

us-gaap:ImpairedFinancingReceivableRecordedInvestment

us-gaap:ImpairedFinancingReceivableRecordedInvestment


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
Value88887588119119106117137132117127143128115130127134133161166180174188188189200215211230248265276275321320374381
Percentage of ImpairedFinancingReceivableRecordedInvestment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ImpairedFinancingReceivableRecordedInvestment us-gaap:ClassOfFinancingReceivableTypeOfBorrower

caty:AccruingTroubledDebtRestructuring


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value31343541646265846862798065867481
Percentage of ImpairedFinancingReceivableRecordedInvestment36.039.046.646.854.352.660.961.658.548.955.562.656.866.258.461.1

caty:NonaccrualLoans


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value5653404754564142524865644849445352
Percentage of ImpairedFinancingReceivableRecordedInvestment64.061.053.453.245.747.439.136.238.441.651.144.537.443.233.941.538.9

us-gaap:ImpairedFinancingReceivableRelatedAllowance

us-gaap:ImpairedFinancingReceivableRelatedAllowance


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-312011-09-302011-06-302010-12-31
Value7.5253.4513.2361.5011.6861.4143.8023.7043.8331.5022.1342.6061.5612.2752.7962.9437.7247.197.749147.9841111139.6091413231217125.4257.2427.5547.4031415
Percentage of ImpairedFinancingReceivableRelatedAllowance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ImpairedFinancingReceivableRelatedAllowance us-gaap:FinancingReceivablePortfolioSegment

caty:ResidentialMortgageAndEquityLinesPortfolioSegment


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
Value0.3070.2190.220.2210.2340.2491.0880.2810.3340.3460.3530.3220.3980.3950.3960.3750.4390.3720.4270.3730.4640.465
Percentage of ImpairedFinancingReceivableRelatedAllowance4.16.36.814.713.917.628.67.68.723.016.512.425.517.414.212.75.75.25.52.65.83.9

us-gaap:CommercialPortfolioSegment


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
Value6.8952.8272.5430.7440.8320.4981.8372.5062.4630.0110.0431.4610.1451.0621.8271.321.3940.2250.537.5610.9661.263
Percentage of ImpairedFinancingReceivableRelatedAllowance91.681.978.649.649.335.248.367.764.30.72.056.19.346.765.344.918.03.16.852.812.110.7

us-gaap:CommercialRealEstatePortfolioSegment


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
Value0.3230.4050.4730.5360.620.6670.8770.9171.0361.1451.7380.8231.0180.8180.5731.2485.8916.5936.7926.3896.5548.993
Percentage of ImpairedFinancingReceivableRelatedAllowance4.311.714.635.736.847.223.124.827.076.281.431.665.236.020.542.476.391.787.744.682.176.2

us-gaap:ImpairedFinancingReceivableUnpaidPrincipalBalance

us-gaap:ImpairedFinancingReceivableUnpaidPrincipalBalance


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-312011-09-302011-06-302010-12-31
Value93938295136135120128148142127137155111124141166168180198203217210215216222263277276295323340353432419478500
Percentage of ImpairedFinancingReceivableUnpaidPrincipalBalance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment

us-gaap:ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment


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
Value4352354375926577989683791159888103839386107115123113
Percentage of ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment us-gaap:FinancingReceivablePortfolioSegment

caty:RealEstateConstructionPortfolioSegment


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
Value4.4334.4824.584.6294.7024.8014.8734.9228.048.1138.1852145335.4585.5076.0815.45822222217
Percentage of ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment10.38.512.910.76.25.27.56.48.28.49.827.339.133.56.25.37.35.825.520.719.615.0

caty:ResidentialMortgageAndEquityLinesPortfolioSegment


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
Value9.5326.0246.0736.776.9977.0965.6656.7766.5436.3771.3012.2642.924.2615.314.6754.1614.7843.0262.452.4732.518
Percentage of ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment22.111.417.115.69.37.78.78.86.66.61.62.82.54.36.04.55.05.13.52.32.12.2

us-gaap:CommercialPortfolioSegment


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
Value13251520404230384944422317172329128.9686.721141418
Percentage of ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment31.049.344.647.253.445.846.550.050.246.251.329.315.518.226.228.315.29.67.813.412.216.3

us-gaap:CommercialRealEstatePortfolioSegment


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
Value15169.0311233824263437313249435464606754687675
Percentage of ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment36.730.825.426.531.141.337.434.935.038.837.340.642.944.061.661.972.572.663.263.766.066.4

us-gaap:ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance

us-gaap:ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance


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
Value4757414891106778710810591871227995112118123129140150159132
Percentage of ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance us-gaap:FinancingReceivablePortfolioSegment

caty:RealEstateConstructionPortfolioSegment


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
Value5.7765.7765.7765.7765.7765.7765.7765.7768.8218.8218.82122455.7765.7765.776275.77651484832
Percentage of ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance12.110.114.011.86.35.47.46.68.18.49.625.437.37.36.05.123.14.739.534.632.424.9

caty:ResidentialMortgageAndEquityLinesPortfolioSegment


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
Value9.5866.0466.1716.8087.0437.1225.6856.7916.5516.3771.3012.2642.924.2615.4724.8324.3124.9293.2332.452.4732.518
Percentage of ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance20.010.614.913.97.76.77.37.86.06.11.42.62.45.45.74.33.74.02.51.71.61.9

us-gaap:CommercialPortfolioSegment


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
Value16282024454532405145432318192429181015151719
Percentage of ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance33.850.348.750.549.342.841.346.347.143.447.627.314.925.025.126.416.18.811.911.011.714.7

us-gaap:CommercialRealEstatePortfolioSegment


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
Value16169.23411334834344144373955496072677459738177
Percentage of ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance34.029.022.423.836.645.244.039.338.742.241.444.745.562.463.264.257.160.446.152.754.358.5

us-gaap:ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment

us-gaap:ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment


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
Value4435404544274139383534472829262744414753505761
Percentage of ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment us-gaap:FinancingReceivablePortfolioSegment

caty:ResidentialMortgageAndEquityLinesPortfolioSegment


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
Value9.2815.8055.545.9175.9846.2237.9386.6057.9397.965111111111213131213131413
Percentage of ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment20.716.413.713.013.522.719.116.620.622.534.323.240.840.045.250.031.529.928.325.828.322.2

us-gaap:CommercialPortfolioSegment


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
Value159.1528.73913120.9396.575.7153.2180.2310.793131.0321.9794.643.2175.4262.7186.847139.6615.037
Percentage of ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment35.325.921.729.128.43.415.814.38.30.72.329.23.66.717.411.912.36.614.424.819.08.2

us-gaap:CommercialRealEstatePortfolioSegment


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
Value19202626252027272727212215151010242627262634
Percentage of ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment44.057.764.657.958.173.965.169.171.176.963.447.655.653.437.538.156.263.557.249.452.755.5

us-gaap:ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance

us-gaap:ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance


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
Value4636414645284241393635493331282848445058535878
Percentage of ImpairedFinancingR