FFIV


Line plots across dimensions of each concept
Tables

Table of contents



us-gaap:CommonStockValue

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesOutstanding
us-gaap:StatementEquityComponents

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService
us-gaap:StatementGeographical

us-gaap:CostOfGoodsAndServicesSold
us-gaap:ProductOrService

us-gaap:GrossProfit

us-gaap:OperatingExpenses

us-gaap:ResearchAndDevelopmentExpense

us-gaap:GeneralAndAdministrativeExpense

us-gaap:SellingAndMarketingExpense

us-gaap:OperatingIncomeLoss

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:IncomeTaxExpenseBenefit

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:Assets

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:AssetsCurrent

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:ShortTermInvestments

us-gaap:AccountsReceivableNetCurrent

us-gaap:InventoryNet

us-gaap:InventoryFinishedGoods

us-gaap:OtherAssetsCurrent

us-gaap:NoncurrentAssets
us-gaap:StatementGeographical

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:LongTermInvestments

us-gaap:Goodwill
us-gaap:BusinessAcquisition

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:OtherAssetsNoncurrent

us-gaap:LiabilitiesCurrent

us-gaap:LongTermDebtCurrent

us-gaap:AccountsPayableCurrent

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:TaxesPayableCurrent

us-gaap:LiabilitiesNoncurrent

us-gaap:LongTermDebtNoncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:CommonStockValue

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:DepreciationDepletionAndAmortization

us-gaap:IncreaseDecreaseInInventories

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquireInvestments

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:ShareBasedCompensation

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
us-gaap:BusinessAcquisition, us-gaap:IncomeStatementLocation
us-gaap:BusinessCombinationAcquisitionRelatedCosts

us-gaap:CapitalizedContractCostAmortization

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
us-gaap:MajorCustomers, us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType
us-gaap:ConcentrationRiskPercentage1
us-gaap:Range, us-gaap:CreditFacility, us-gaap:SubsequentEventType, us-gaap:VariableRate
us-gaap:DebtInstrumentBasisSpreadOnVariableRate1
us-gaap:Range, us-gaap:CreditFacility, us-gaap:VariableRate

us-gaap:DeferredIncomeTaxesAndTaxCredits

us-gaap:EffectOfExchangeRateOnCashAndCashEquivalents

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInContractWithCustomerLiability

us-gaap:IncreaseDecreaseInOtherCurrentAssets

us-gaap:IncreaseDecreaseInOtherNoncurrentAssets

us-gaap:InvestmentIncomeInterest

us-gaap:LeaseCost
us-gaap:Range, us-gaap:CreditFacility
us-gaap:LineOfCreditFacilityCommitmentFeePercentage
us-gaap:Range, us-gaap:CreditFacility, us-gaap:SubsequentEventType

us-gaap:OperatingLeaseCost

us-gaap:OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax

us-gaap:OtherNoncashIncomeExpense

us-gaap:OtherSignificantNoncashTransactionValueOfConsiderationReceived1
us-gaap:BusinessAcquisition
us-gaap:PaymentsToAcquireBusinessesGross
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

us-gaap:ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities

us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt

us-gaap:RestructuringCharges

us-gaap:ShortTermLeaseCost
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation
us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised
us-gaap:StatementEquityComponents

us-gaap:StockRepurchasedAndRetiredDuringPeriodShares

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue
us-gaap:StatementEquityComponents

us-gaap:VariableLeaseCost

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment

us-gaap:AccruedIncomeTaxesNoncurrent

us-gaap:AccruedLiabilitiesCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent
us-gaap:InformationByCategoryOfDebtSecurity
us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
us-gaap:InformationByCategoryOfDebtSecurity, us-gaap:InvestmentType
us-gaap:InformationByCategoryOfDebtSecurity
us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
us-gaap:InformationByCategoryOfDebtSecurity, us-gaap:InvestmentType
us-gaap:InformationByCategoryOfDebtSecurity
us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
us-gaap:InformationByCategoryOfDebtSecurity, us-gaap:InvestmentType
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:AvailableForSaleSecuritiesDebtSecurities
us-gaap:FairValueByMeasurementFrequency
us-gaap:InformationByCategoryOfDebtSecurity
us-gaap:InformationByCategoryOfDebtSecurity, us-gaap:InvestmentType
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType
us-gaap:AvailableForSaleSecuritiesDebtSecuritiesCurrent
us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType
us-gaap:AvailableForSaleSecuritiesDebtSecuritiesNoncurrent
us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisitionCostOfAcquiredEntityTransactionCosts
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther
us-gaap:BusinessAcquisition, us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet

us-gaap:CapitalizedContractCostNet

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

us-gaap:ContractWithCustomerAssetNet

us-gaap:ContractWithCustomerAssetNetCurrent

us-gaap:ContractWithCustomerAssetNetNoncurrent

us-gaap:ContractWithCustomerLiability

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:ContractWithCustomerLiabilityNoncurrent

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger
us-gaap:InvestmentType

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
us-gaap:InvestmentType

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months
us-gaap:InvestmentType

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
us-gaap:InvestmentType

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPosition
us-gaap:InvestmentType

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss
us-gaap:InvestmentType
us-gaap:CreditFacility
us-gaap:DeferredFinanceCostsGross

us-gaap:DeferredIncomeTaxAssetsNet

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredRentCreditNoncurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:InventoryRawMaterials
us-gaap:CreditFacility
us-gaap:LineOfCredit
us-gaap:CreditFacility, us-gaap:SubsequentEventType, us-gaap:VariableRate
us-gaap:LineOfCreditFacilityInterestRateAtPeriodEnd
us-gaap:CreditFacility
us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
us-gaap:CreditFacility, us-gaap:SubsequentEventType

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OtherAccruedLiabilitiesNoncurrent

us-gaap:OtherAssetsMiscellaneousCurrent

us-gaap:OtherAssetsMiscellaneousNoncurrent

us-gaap:PrepaidExpenseCurrent

us-gaap:RestrictedCash

us-gaap:RestructuringReserve

us-gaap:RevenueRemainingPerformanceObligationPercentage

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents

us-gaap:UnbilledContractsReceivable

Tables

  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-06-30
us-gaap:CommonStockValue ▄▄▃▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▄▅▅▅▅▆▆▆▆█████22321114298291320202120171719171392516105205151821109262290294315326349357379380505515534517504NANANA
us-gaap:CommonStockSharesIssued ▁▁▁▁▁▁▁▁▂▂▂▂▃▃▃▃▃▄▅▅▅▅▆▆▆▇▇▇▇▇▇█████████60606060596060606161626364646566666870717172737475767878787878797979798080808079NANANA
us-gaap:CommonStockSharesOutstanding ▁▁▁▁▁▁▁▁▂▂▂▂▃▃▃▃▃▄▅▅▅▅▆▆▆▇▇▇▇▇▇█████████60606060596060606161626364646566666870717172737475767878787878797979798080808079NANANA
 us-gaap:CommonStockSharesOutstanding us-gaap:StatementEquityComponents us-gaap:CommonStock▄▄▄606060NA596060NANANA62NANANA65NANANA70NANANA73NANANA78NANANA78797979798080808079NANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding ▁▁▁▁▁▁▁▁▂▂▂▂▃▃▃▃▃▄▅▅▅▅▆▆▆▇▇▇▇▇▇▇▇▇████████▇61606060606061616262636465656667676971717273747576777878797979797979808181818181808079
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic ▁▁▁▁▁▁▁▁▂▂▂▂▃▃▃▃▄▄▅▅▅▆▆▆▆▇▇▇▇▇▇██████████▇▇60606059596060606162636364656566676970717273737475777878787878797979808080808079797878
us-gaap:EarningsPerShareBasic ▄▆▆▅▇██▇▆▅█▆▅▅▆▅▄▅▅▅▄▄▅▄▃▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▁▁▁1.011.621.571.431.942.172.22.011.791.422.151.531.441.451.661.371.121.291.371.31.191.211.271.060.920.880.970.870.810.880.860.910.870.840.840.770.690.690.60.510.420.370.29
us-gaap:EarningsPerShareDiluted ▄▆▆▅▇██▇▆▅█▆▅▅▆▅▄▅▅▅▄▄▅▄▃▃▄▃▃▃▃▃▃▃▃▃▂▂▂▂▁▁▁1.01.621.571.431.932.162.181.991.771.412.141.521.431.441.641.371.111.281.361.291.181.211.261.050.910.870.970.860.80.880.850.910.860.830.840.770.680.680.590.50.410.360.29
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-06-30
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ████▇▇█▇▇▇▇▇▇▇▇▆▆▆▇▆▆▆▆▆▅▅▅▄▄▄▄▄▄▄▄▃▃▃▃▂▂▂▁583569590563544543562542533523537517518515525496483489501483472462465440420406395370350365362352339322314290277268254230206191158
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService us-gaap:Product▇▂█▅▃▂▆▃▃▁259234264248237233256238237227NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService us-gaap:Service▆█▆▄▃▄▃▂▁▁323334325314307309306303295295NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementGeographical country:US▇▅█▅▆▅▆▅▅▅▆▅▅▄▆▄▃▃▅▄▃▃▄▂▂▁302275317273282264282275266264283269265256281256242239268259244231247226215205NA198172194NA187181170NANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementGeographical srt:Americas▅▂█▂▃▁▄▃▂▁325301345300307291311305295291NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementGeographical srt:AsiaPacific▄▅▄█▃▃▅▃▃▁11011110912910010311110510092NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementGeographical us-gaap:EMEA▇█▆▆▆▇▇▆▆▆▆▅▅▆▅▅▅▅▄▅▄▅▃▃▃▃▂▁▁▁147155135132136148139130136138128121126129120117121127115118113117104103999785778082NANANANANANANANANANANANANA
us-gaap:CostOfGoodsAndServicesSold █▇▇▇▇▆▇▇▇▇▇▇▇▆▆▆▆▆▆▆▆▆▆▆▅▅▄▄▄▄▄▄▃▃▃▃▃▃▂▂▂▂▁101889090888693918987908987858484828584858279817975726664606062605755555250484644413933
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService us-gaap:Product█▁▂▂▂▁▅▃▂▂53424444434248454443NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService us-gaap:Service█▄▄▄▁▁▁▃▃▁48464646444444454544NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:GrossProfit ███▇▇▇▇▇▇▇▇▇▇▇▇▆▆▆▆▆▆▆▆▅▅▅▅▄▄▄▄▄▄▄▄▃▃▃▃▂▂▂▁482480499472456457469451443435447428430430440412401403416397389383383360344333328305289304299292282266258238226219207185164152124
us-gaap:OperatingExpenses █▇█▇▆▆▆▆▆▆▆▅▆▆▅▅▅▅▅▅▅▅▄▄▄▄▄▃▃▃▃▃▃▃▃▂▂▂▂▂▁▁▁39835838436931329831529930029329828829129327727328627226925725625123523423322420320119719518818217716715915014314013112511410893
us-gaap:ResearchAndDevelopmentExpense ▇▆▇█▆▆▆▆▆▆▆▆▆▆▅▅▆▅▅▅▅▄▄▄▄▄▃▃▃▃▃▃▂▂▂▂▂▂▁▁▁▁▁10996102116969295949185858889878383868177747470656767645454524847464339363534323130292625
us-gaap:GeneralAndAdministrativeExpense █▆▇▆▅▄▄▄▄▄▄▄▄▄▄▃▃▃▄▃▃▃▃▃▃▂▃▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁74596457464241393939373938413534343439323032272726252625252424232221212119201817161512
us-gaap:SellingAndMarketingExpense █▇█▇▆▆▆▆▆▆▆▆▆▆▅▅▅▅▅▅▅▅▅▅▅▄▄▄▄▄▄▃▃▃▃▃▂▂▂▂▂▁▁2151952171951701641601651691671621601641641581561561571511501511481431391401341191211191221161121101061009389868077696555
us-gaap:OperatingIncomeLoss ▄▆▅▅▇██▇▇▇▇▇▇▇█▇▅▆▇▇▆▆▇▆▅▅▆▅▄▅▅▅▅▅▅▄▄▄▃▃▂▂▁831221141021421581531511431411481391381371621381141301471401321321471261101091251049210911111010499998883797660494331
us-gaap:OtherNonoperatingIncomeExpense ▁▆▄▅██▆▃▃▃▆▃▂▃▁▁▁▂▂▁▄▃▃▂▁▁▁▃▃▂▁▂▂▂▅▂▂▃▁▄▃▂▄0534775222521200011032210002210111411203213
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax ▃▆▆▆▆▆▆▃▆▆▁▆▆▁▆▆█▆▁▆▁▃▃▆▆▆-1000000-100-200-20010-20-2-1-1000NA-1-10NA000NA00NANANANANANA
us-gaap:IncomeTaxExpenseBenefit ▃▄▃▃▅▅▃▄▅█▂▆▇▆█▇▅▆█▇▇▆█▇▆▆▇▅▄▆▆▅▅▅▅▄▄▃▄▃▂▂▁22292321343426313655184446455348394252475045554741414938314145393735352729262823191611
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest ▁▅▄▄▇██▇▆▄█▅▄▄▆▄▃▄▅▄▄▄▄▃▂▂56999387118131132121108861339793911099278889593848691796967NA646268NA726966NA635554NA39NANANA
us-gaap:NetIncomeLoss ▃▆▅▅▇██▇▆▅█▆▅▅▆▅▄▅▆▅▅▅▅▅▄▄▄▄▄▄▄▄▄▄▄▃▃▃▃▂▂▁▁619894851161301321221098813597939410891758997938589947969687668636967726866676255554840332922
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings▁▅▄▃▆██▇▆61989485116130132122109NANANANANANANANANANANANANANANANANANANANANANANANA66NANANA55NANANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-06-30
us-gaap:Assets █▇▆▅▅▅▄▄▄▄▄▄▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▁▁▁4440387533903177299028912605256125172493248024182387239723062253224223162312226222212236218421752166221422302147206520371911183817581698156815971538147513621267NANANA
us-gaap:LiabilitiesAndStockholdersEquity █▇▆▅▅▅▄▄▄▄▄▄▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▁▁▁4440387533903177299028912605256125172493248024182387239723062253224223162312226222212236218421752166221422302147206520371911183817581698156815971538147513621267NANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-06-30
us-gaap:AssetsCurrent ▆█▆▆█▇▆▆▆▆▆▆▆▆▅▅▅▅▅▅▄▄▃▃▃▃▂▃▂▂▂▂▂▂▂▂▂▂▁▁1408173715111504180716191417146914071380145914451444142712881207119312081188118510521026998945950870816834804791776782746804763797690684605560NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▆█▇▇█▅▅▇▆▇▇█▇▆▆▅▄▅▄▆▄▃▃▃▃▃▂▂▃▂▂▂▂▃▂▃▂▂▂▂▂▂▁57273559968872648042459959561167369065557251442939843339056236726828124123923118919822918421119520925721629920616816814314814788
us-gaap:ShortTermInvestments ▁▄▃▂▇█▇▅▄▄▃▂▃▄▃▃▃▃▃▁▂▄▃▃▃▃▃▃▂▃▂▂▂▂▃▂▂▂▁▁248426373298587652614485428392343323358400367381376358383235298385363369383346352353293333320324280299325285269317259254NANANA
us-gaap:AccountsReceivableNetCurrent ██▇▇▇▇▆▆▆▆▆▆▆▇▆▅▆▆▆▅▅▅▅▅▄▄▄▄▄▄▃▄▃▃▃▂▂▂▁▁338354322320321325295297290291291295293313268263266279279261262255242243223220204205192209185193184187165154142141112102NANANA
us-gaap:InventoryNet ▆▇▇█▇▆▆▆▅▅▅▆▇▇▇▇█▇▇▆▅▅▄▃▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁30323436333130312929293132333433353333302927242320191918171817171717171718181817NANANA
us-gaap:InventoryFinishedGoods ▅▆▆▇▆▆▆▆▅▅▅▆▆▆▇▇█▇▇▆▆▅▄▄▂▂▂▂▂▂▂▂▁▁▁▂202122232221212119192021212223242524242222201817141313131314131312121213NANA14NANANANA
us-gaap:OtherAssetsCurrent █▇▇▆▅▅▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▂▂▁▁▂▂▁▁▁▂▁▁▁21718818216113812952556256675151525250665150504844444458323448603530434733293045303730NANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-06-30
us-gaap:NoncurrentAssets ██▇█▇▅▃▂▁▁▁▁▂▂▁232229223226208179145126117117122125126128123NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:US████▇▅▃▂▁▁▁▁▂▂▁2001981941981831591261089999103105108111105NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PropertyPlantAndEquipmentNet ████▇▆▅▄▄▄▄▄▄▄▄▄▄▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁2322292232262081791451261171171221251261281231151079995836866666261626363636259545250474237353435NANANA
us-gaap:LongTermInvestments ▁▃▃▁▃▄▄▃▃▃▂▂▁▂▂▃▃▄▄▃▅▅▅▅▅▇█▇▇█▇▆▅▆▅▅▅▄▄▄204312358161301413411329350348284234200222276313319383397361467512482508541657728714662771662587543558470471521466433382NANANA
us-gaap:Goodwill █▅▅▅▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁1864106510651065555555555555555555555555555555555555555555555556556556556556517523523447447348348347347234234234234234234233NANANA
us-gaap:FiniteLivedIntangibleAssetsNet █▁▁246104108NANANA31NANANA42NANANA50NANANA58NANANA65NANANA68NANANA21NANANA9NANANANANANANANA
us-gaap:OtherAssetsNoncurrent █▅▅▅▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁3551972031949510042454951535458605960646768717472757672757554562828303115171313151517NANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-06-30
us-gaap:LiabilitiesCurrent █▇▇▇▇▇▆▆▆▆▆▆▆▆▅▅▅▅▄▄▄▄▄▃▃▃▃▃▃▃▂▂▂▂▂▂▂▁▁▁125211501105107210741047954943962945934909916918844799800802755717697695636611597613551529520529466446433432372349342327287259NANANA
us-gaap:LongTermDebtCurrent 19NA0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AccountsPayableCurrent ▆▆▇▆██▆▄▄▅▅▄▅▅▃▃▃▃▅▅▃▄▄▃▄▄▃▂▄▃▂▃▂▃▃▃▂▂▁▁56526255686657444046504447493437373750483441433640383728393227322932333430312122NANANA
us-gaap:OtherAccruedLiabilitiesCurrent █▁▇665765NANANA37NANANA34NANANA33NANANA13NANANA13NANANA11NANANA11NANANA10NANANA15NANANANA
us-gaap:TaxesPayableCurrent ▂█▁323931NANANA27NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-06-30
us-gaap:LiabilitiesNoncurrent █▆▄▄▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁119079552348144843536535132832131630428728327626726025024021720218517816315314614012911612111510910795908284727166NANANA
us-gaap:LongTermDebtNoncurrent 378NA0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesNoncurrent ▄▄█▇▆▅▄▄▃▃▃▃▂▂▂▂▂▂▂▂▁▁▁▁▁▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁6262131117958165595351444137353430323130252323222222242521232121201918181618171615NANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-06-30
us-gaap:CommonStockValue ▄▄▃▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▄▅▅▅▅▆▆▆▆█████22321114298291320202120171719171392516105205151821109262290294315326349357379380505515534517504NANANA
us-gaap:RetainedEarningsAccumulatedDeficit ██▇▇▆▆▅▅▅▅▅▅▅▅▅▅▅▅▆▆▆▆▆▆▆▆▅▅▅▄▄▄▃▃▂▂▂▂▁▁1797173616381543145714171287126712261226122912021180119311851190116912621321133413131362136313881400135112831207113910751006938866797731663600545489441NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▁▂▂▂▂▁▁▁▂▂▃▄▄▃▄▄▄▃▄▄▄▅▆▇▇▇▇▆▇██▇▇▇▇█████-22-18-19-18-19-21-22-21-20-19-17-15-15-16-13-13-13-16-15-13-13-12-9-6-7-7-7-9-5-4-3-5-6-6-6-3-4-4-3-4NANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-06-30
us-gaap:NetCashProvidedByUsedInOperatingActivities ▆▄█▅▇▇█▆▆▇█▅▆▇█▆▄▇▆▆▄▇▆▄▁▅18114420615019319720418218418921316217518920417013320318317214218616913881158NANANA144NANANA131NANANA103NANANA73NA
us-gaap:NetCashProvidedByUsedInInvestingActivities ▁▆▄▅█▆▅▆▆▆▆▇▇▇▇▇▇▇▅██▆▇▇▇▇-686-29-294-213153-60-228-55-51-121-79-754029-152919-204145114-6520-107070NANANA-133NANANA-67NANANA-97NANANA-40NA
us-gaap:NetCashProvidedByUsedInFinancingActivities █▄▄▄▂▂▂▂▂▂▂▂▂▂▂▂▁▁▂▂▂▂▂▂▂▁34720026-100-82-150-121-150-130-149-120-147-128-148-123-199-180-147-123-155-130-147-125-144-186NANANA-37NANANA-23NANANA-6NANANA3NA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-06-30
us-gaap:NetCashProvidedByUsedInOperatingActivities ▆▄█▅▇▇█▆▆▇█▅▆▇█▆▄▇▆▆▄▇▆▄▁▅18114420615019319720418218418921316217518920417013320318317214218616913881158NANANA144NANANA131NANANA103NANANA73NA
us-gaap:NetIncomeLoss ▃▆▅▅▇██▇▆▅█▆▅▅▆▅▄▅▆▅▅▅▅▅▄▄▄▄▄▄▄▄▄▄▄▃▃▃▃▂▂▁▁619894851161301321221098813597939410891758997938589947969687668636967726866676255554840332922
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings▁▅▄▃▆██▇▆61989485116130132122109NANANANANANANANANANANANANANANANANANANANANANANANA66NANANA55NANANANANA
us-gaap:DepreciationDepletionAndAmortization █▅▆▅▃▃▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▁▁▁2418211814141514141515151514141414131312131312111111NANANA9NANANA5NANANA5NANANA5NA
us-gaap:IncreaseDecreaseInInventories ▂▁▂▇▅▄▄▅▄▄▂▂▂▄▄▂▅▄█▄▅█▅▇▅▄-1-2-12100100-1-1-100-11030131210NANANA1NANANA0NANANA0NANANA1NA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-06-30
us-gaap:NetCashProvidedByUsedInInvestingActivities ▁▆▄▅█▆▅▆▆▆▆▇▇▇▇▇▇▇▅██▆▇▇▇▇-686-29-294-213153-60-228-55-51-121-79-754029-152919-204145114-6520-107070NANANA-133NANANA-67NANANA-97NANANA-40NA
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▃▆▅█▇▅▄▅▂▂▂▂▂▄▄▄▄▃▄▅▂▂▂▁▁▁1322203229211719967791417161613182110107554NANANA7NANANA5NANANA5NANANA3NA
us-gaap:PaymentsToAcquireInvestments ▁▄█▁▁▄▇▄▃▅▄▃▂▃▃▃▂▃▆▃▂▄▃▃▄▄1418039202019035614511423819110947981298631107262927617712897141147NANANA313NANANA262NANANA251NANANA119NA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-06-30
us-gaap:NetCashProvidedByUsedInFinancingActivities █▄▄▄▂▂▂▂▂▂▂▂▂▂▂▂▁▁▂▂▂▂▂▂▂▁34720026-100-82-150-121-150-130-149-120-147-128-148-123-199-180-147-123-155-130-147-125-144-186NANANA-37NANANA-23NANANA-6NANANA3NA
us-gaap:PaymentsForRepurchaseOfCommonStock ▃▁▁▁▄▅▆▆▆▆▆▆▆▆▆▆██▆▆▆▆▆▆▆█50000100101150150150150150150150150150150200200149150156149150150150200NANANA50NANANA34NANANA24NANANA15NA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-06-30

Common Stock Value

us-gaap:CommonStockValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-09-30
Value22321114298291320202120171719171392516105205151821109262290294315326349357379380505515534517504462
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.05.54.23.11.00.50.80.80.80.80.70.70.80.70.60.41.10.70.40.30.90.20.70.91.05.011.813.514.315.517.119.020.322.324.331.633.536.238.039.843.3

Common Stock Par Or Stated Value Per Share

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-09-30
Value6060606059606060616162636464656666687071717273747576787878787879797979808080807978
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-09-30
Value6060606059606060616162636464656666687071717273747576787878787879797979808080807978
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:CommonStock



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-09-302008-09-302007-09-30
Value606060596060626570737878797979798080808079787984
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

Common Stock Shares Authorized

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-06-30
Value61606060606061616262636465656667676971717273747576777878797979797979808181818181808079
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-06-30
Value60606059596060606162636364656566676970717273737475777878787878797979808080808079797878
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-06-30
Value1.011.621.571.431.942.172.22.011.791.422.151.531.441.451.661.371.121.291.371.31.191.211.271.060.920.880.970.870.810.880.860.910.870.840.840.770.690.690.60.510.420.370.29
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-06-30
Value1.01.621.571.431.932.162.181.991.771.412.141.521.431.441.641.371.111.281.361.291.181.211.261.050.910.870.970.860.80.880.850.910.860.830.840.770.680.680.590.50.410.360.29
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-06-30
Value583569590563544543562542533523537517518515525496483489501483472462465440420406395370350365362352339322314290277268254230206191158
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductOrService

us-gaap:Product



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value259234264248237233256238237227
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax44.541.244.944.243.743.045.644.044.543.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax44.541.244.944.243.743.045.644.044.543.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Product100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Service



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value323334325314307309306303295295
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax55.558.855.155.856.357.054.456.055.556.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax55.558.855.155.856.357.054.456.055.556.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Service100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementGeographical

country:US



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-06-302013-03-312012-12-312012-06-302012-03-312011-12-31
Value302275317273282264282275266264283269265256281256242239268259244231247226215205198172194187181170
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax51.848.453.848.551.848.750.250.750.050.552.752.151.249.753.551.750.148.953.753.751.750.153.351.551.450.653.649.253.353.153.453.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax51.848.453.848.551.848.750.250.750.050.552.752.151.249.753.551.750.148.953.753.751.750.153.351.551.450.653.649.253.353.153.453.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:US100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ffiv:OtherAmericas



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-06-302013-03-312012-12-312012-06-302012-03-312011-12-312011-06-302011-03-31
Value23262827252628302927262726302423292721222525242221211517181416181311
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.04.64.84.94.74.95.15.65.55.24.85.35.15.94.74.86.25.74.24.65.45.55.35.25.15.24.25.05.04.04.95.84.74.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.04.64.84.94.74.95.15.65.55.24.85.35.15.94.74.86.25.74.24.65.45.55.35.25.15.24.25.05.04.04.95.84.74.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ffiv:OtherAmericas100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:Americas



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value325301345300307291311305295291
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax55.853.058.653.456.453.655.356.355.555.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax55.853.058.653.456.453.655.356.355.555.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Americas100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:AsiaPacific



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value11011110912910010311110510092
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax18.919.618.523.118.519.019.919.518.817.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax18.919.618.523.118.519.019.919.518.817.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:AsiaPacific100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EMEA



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value147155135132136148139130136138128121126129120117121127115118113117104103999785778082
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax25.427.422.923.625.127.424.824.125.726.623.923.524.425.223.023.625.226.123.124.424.025.322.423.423.724.021.721.023.122.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax25.427.422.923.625.127.424.824.125.726.623.923.524.425.223.023.625.226.123.124.424.025.322.423.423.724.021.721.023.122.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:EMEA100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenue From Contract With Customer Including Assessed Tax

Sales Revenue Net

Sales Revenue Goods Net

Cost Of Goods And Services Sold

us-gaap:CostOfGoodsAndServicesSold



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-06-30
Value101889090888693918987908987858484828584858279817975726664606062605755555250484644413933
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax17.415.615.416.116.215.916.616.816.816.716.817.317.016.516.217.017.017.516.917.717.517.117.618.018.017.916.917.517.216.717.317.117.017.217.818.018.318.218.419.320.120.521.3

us-gaap:ProductOrService

us-gaap:Product



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value53424444434248454443
Percentage of CostOfGoodsAndServicesSold52.447.549.248.849.448.951.949.649.249.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.17.47.67.98.07.88.68.38.38.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Product20.518.016.917.818.318.118.918.918.619.0

us-gaap:Service



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value48464646444444454544
Percentage of CostOfGoodsAndServicesSold47.652.550.851.250.651.148.150.450.850.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.38.27.88.28.28.18.08.58.58.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Service14.913.914.214.814.514.314.715.115.414.9

Cost Of Goods Sold

Cost Of Services

Gross Profit

us-gaap:GrossProfit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-06-30
Value482480499472456457469451443435447428430430440412401403416397389383383360344333328305289304299292282266258238226219207185164152124
Percentage of GrossProfit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax82.684.484.683.983.884.183.483.283.283.383.282.783.083.583.883.083.082.583.182.382.582.982.482.082.082.183.182.582.883.382.782.983.082.882.282.081.781.881.680.779.979.578.7

Operating Expenses

us-gaap:OperatingExpenses



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-06-30
Value39835838436931329831529930029329828829129327727328627226925725625123523423322420320119719518818217716715915014314013112511410893
Percentage of OperatingExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax68.362.965.265.757.655.056.155.256.356.255.555.856.356.852.955.059.255.753.753.354.454.350.753.355.655.251.454.456.453.551.951.752.251.850.751.651.852.151.654.655.756.758.9

Research And Development Expense

us-gaap:ResearchAndDevelopmentExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-06-30
Value10996102116969295949185858889878383868177747470656767645454524847464339363534323130292625
Percentage of ResearchAndDevelopmentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax18.716.917.420.717.716.916.917.317.116.415.917.117.216.915.916.717.816.615.515.415.815.114.115.216.015.813.814.615.013.313.213.312.812.111.612.112.412.112.413.414.114.015.8

General And Administrative Expense

us-gaap:GeneralAndAdministrativeExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-06-30
Value74596457464241393939373938413534343439323032272726252625252424232221212119201817161512
Percentage of GeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.710.410.910.18.67.87.47.37.47.67.07.67.38.16.76.97.27.07.96.76.67.05.86.36.26.36.76.87.46.86.66.66.76.77.07.37.17.77.47.77.88.38.1

Selling And Marketing Expense

us-gaap:SellingAndMarketingExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-06-30
Value2151952171951701641601651691671621601641641581561561571511501511481431391401341191211191221161121101061009389868077696555
Percentage of SellingAndMarketingExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax36.934.336.834.831.430.228.530.631.932.130.131.131.831.930.131.532.332.230.331.232.032.230.831.833.433.230.332.934.033.532.131.832.732.932.132.232.232.331.733.533.834.335.0

Operating Income Loss

us-gaap:OperatingIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-06-30
Value831221141021421581531511431411481391381371621381141301471401321321471261101091251049210911111010499998883797660494331
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.321.519.418.226.229.127.328.026.927.127.726.926.726.631.028.023.826.829.429.028.128.631.728.626.426.931.728.126.429.830.831.230.830.931.630.430.029.730.026.124.222.919.8

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-06-30
Value0534775222521200011032210002210111411203213
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.00.90.60.81.41.31.00.40.50.40.90.50.30.50.10.20.00.20.40.10.70.60.50.30.00.10.20.80.60.40.30.50.40.61.30.60.60.90.01.51.10.91.9

Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-06-302013-03-312012-12-312012-06-302012-03-312011-12-312011-06-302011-03-31
Value-1000000-100-200-20010-20-2-1-1000-1-1000000
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.30.1-0.20.0-0.00.0-0.1-0.30.10.0-0.40.10.1-0.40.1-0.00.3-0.0-0.50.1-0.5-0.4-0.40.10.1-0.1-0.5-0.4-0.1-0.10.0-0.1-0.00.1

Income Loss From Continuing Operations Before Income Taxes Domestic

Income Loss From Continuing Operations Before Income Taxes Foreign

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-06-30
Value22292321343426313655184446455348394252475045554741414938314145393735352729262823191611
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.85.13.93.86.36.34.75.86.810.63.48.59.08.910.39.78.28.710.59.910.79.912.010.99.810.212.610.58.911.312.411.211.010.911.49.510.59.911.110.19.28.47.3

Income Taxes Paid Net

Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-06-302013-03-312012-12-312012-06-302012-03-312011-12-312011-06-302011-03-312010-12-312010-06-30
Value5699938711813113212110886133979391109927888959384869179696764626872696663555439
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.717.415.915.521.824.123.622.520.316.624.818.918.117.720.818.516.218.119.019.217.918.719.618.116.716.717.517.718.820.620.420.521.920.020.217.1

Net Income Loss

us-gaap:NetIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-06-30
Value619894851161301321221098813597939410891758997938589947969687668636967726866676255554840332922
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.517.316.115.221.324.123.622.620.616.925.218.918.018.320.718.515.618.319.419.318.219.220.218.116.616.719.318.418.119.018.720.520.220.621.521.520.020.719.017.616.115.314.4

us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312011-12-312010-12-31
Value619894851161301321221096655
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.517.316.115.221.324.123.622.620.620.620.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.0

Assets

us-gaap:Assets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-09-30
Value44403875339031772990289126052561251724932480241823872397230622532242231623122262222122362184217521662214223021472065203719111838175816981568159715381475136212671068
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-09-30
Value44403875339031772990289126052561251724932480241823872397230622532242231623122262222122362184217521662214223021472065203719111838175816981568159715381475136212671068
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Assets Current

us-gaap:AssetsCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-09-30
Value1408173715111504180716191417146914071380145914451444142712881207119312081188118510521026998945950870816834804791776782746804763797690684605560468
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets31.744.844.647.460.456.054.457.455.955.458.859.860.559.655.953.653.352.251.452.447.445.945.743.443.939.336.638.838.938.940.642.642.547.348.749.944.946.444.544.243.8

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302008-09-302007-09-30
Value572735599688726480424599595611673690655572514429398433390562367268281241239231189198229184211195209257216299206168168143148147110887854
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets12.919.017.721.724.316.616.323.423.724.527.128.627.523.922.319.117.818.716.924.816.512.012.911.111.110.48.59.211.19.111.010.611.915.213.818.813.411.412.411.30.00.010.40.00.00.0

Short Term Investments

us-gaap:ShortTermInvestments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-09-30
Value248426373298587652614485428392343323358400367381376358383235298385363369383346352353293333320324280299325285269317259254206
Percentage of ShortTermInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.611.011.09.419.622.623.618.917.015.713.913.415.016.715.916.916.815.516.610.413.517.216.717.017.715.715.816.414.216.416.817.615.917.620.817.917.521.519.120.119.3

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-09-30
Value338354322320321325295297290291291295293313268263266279279261262255242243223220204205192209185193184187165154142141112102106
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.69.29.510.110.811.311.311.611.611.711.812.212.313.111.611.711.912.112.111.511.811.411.111.210.310.09.29.69.310.39.710.510.511.110.69.79.39.68.28.110.0

Inventory Net

us-gaap:InventoryNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-09-30
Value3032343633313031292929313233343335333330292724232019191817181717171717171818181713
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.70.81.01.11.11.11.21.21.21.21.21.31.41.41.51.51.61.41.51.31.31.21.11.11.00.90.90.90.90.90.90.91.01.01.11.11.21.21.41.41.3

Inventory Finished Goods

us-gaap:InventoryFinishedGoods



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-09-30
Value20212223222121211919202121222324252424222220181714131313131413131212121314
Percentage of InventoryFinishedGoods100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.60.70.70.70.70.80.80.80.80.80.90.90.91.01.11.11.11.11.01.00.90.80.80.70.60.60.60.70.70.70.70.70.80.80.91.1

Other Assets Current

us-gaap:OtherAssetsCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-10-012018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-09-30
Value2171881821611381291025255625667515152525066515050484444445832344860353043473329304530373022
Percentage of OtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.94.95.45.14.64.50.02.02.22.52.22.72.12.12.22.32.33.02.22.22.22.22.02.02.12.71.51.62.32.91.81.62.42.72.01.91.93.02.02.82.42.1

Machinery And Equipment Gross

Noncurrent Assets

us-gaap:NoncurrentAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value232229223226208179145126117117122125126128123
Percentage of NoncurrentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.25.96.67.17.06.25.64.94.74.74.95.25.35.45.3

us-gaap:StatementGeographical

country:US



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value2001981941981831591261089999103105108111105
Percentage of NoncurrentAssets86.286.486.988.088.488.887.486.185.084.684.584.485.386.385.6
Percentage of Assets4.55.15.76.36.25.54.94.24.04.04.24.44.54.64.6
Percentage of Assets country:US0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ffiv:OtherInternationalCountries



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value15161514117543333443
Percentage of NoncurrentAssets6.87.27.16.55.74.43.93.53.03.23.23.23.23.23.2
Percentage of Assets0.40.40.50.50.40.30.20.20.10.10.20.20.20.20.2
Percentage of Assets ffiv:OtherInternationalCountries0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:EMEA



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value161413121212121313141515141313
Percentage of NoncurrentAssets7.06.46.05.56.06.88.610.411.912.312.312.411.610.511.2
Percentage of Assets0.40.40.40.40.40.40.50.50.60.60.60.60.60.60.6
Percentage of Assets us-gaap:EMEA0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Property Plant And Equipment Gross

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-09-30
Value232229223226208179145126117117122125126128123115107999583686666626162636363625954525047423735343539
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.25.96.67.17.06.25.64.94.74.74.95.25.35.45.35.14.84.34.13.73.13.03.12.92.82.82.83.03.13.03.13.03.03.03.12.62.42.42.52.83.7

Long Term Investments

us-gaap:LongTermInvestments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-09-30
Value204312358161301413411329350348284234200222276313319383397361467512482508541657728714662771662587543558470471521466433382257
Percentage of LongTermInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.68.110.65.110.114.315.812.913.914.011.59.78.49.312.013.914.216.617.216.021.122.922.123.425.029.732.733.332.137.934.732.030.932.930.029.533.931.631.830.224.1

Goodwill

us-gaap:Goodwill



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-05-222014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-09-30
Value186410651065106555555555555555555555555555555555555555555555555655655655655639517523523447447348348347347234234234234234234233231
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets42.027.531.433.518.619.221.321.722.122.322.423.023.323.224.124.724.824.024.024.625.124.925.525.60.023.923.623.520.821.717.118.218.919.813.815.014.715.315.917.218.421.7

us-gaap:BusinessAcquisition

ffiv:ShapeSecurityInc.



Period End2020-01-24
Value799
Percentage of Goodwill0.0
Percentage of Assets0.0
Percentage of Assets ffiv:ShapeSecurityInc.0.0

Intangible Assets Net Excluding Goodwill

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet



Period End2020-03-312019-12-312019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-30
Value246104108314250586568219
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.52.73.21.21.72.22.53.03.11.10.6

Deferred Tax Assets Liabilities Net

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-10-012018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-09-30
Value355197203194951001014245495153545860596064676871747275767275755456282830311517131315151720
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.05.16.06.13.23.50.01.61.82.02.12.22.32.42.52.62.72.92.92.93.13.43.23.43.53.33.43.42.52.71.41.51.71.80.91.10.80.91.01.21.41.9

Liabilities Current

us-gaap:LiabilitiesCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-09-30
Value125211501105107210741047954943962945934909916918844799800802755717697695636611597613551529520529466446433432372349342327287259223
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets28.229.732.633.735.936.236.636.938.237.937.737.638.438.336.635.535.734.732.731.731.431.129.228.127.627.724.724.725.226.024.424.324.725.523.721.922.222.221.120.520.9

Long Term Debt Current

us-gaap:LongTermDebtCurrent



Period End2020-03-312019-09-30
Value190
Percentage of LongTermDebtCurrent100.00.0
Percentage of Assets0.40.0

Accounts Payable Current

us-gaap:AccountsPayableCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-09-30
Value5652625568665744404650444749343737375048344143364038372839322732293233343031212218
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.31.41.81.82.32.32.21.71.61.92.01.82.02.11.51.71.71.62.22.21.61.82.01.71.91.71.71.31.91.61.41.71.71.92.12.12.02.11.61.81.8

Other Accrued Liabilities Current

us-gaap:OtherAccruedLiabilitiesCurrent



Period End2020-03-312019-12-312019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value665765373433131311111015
Percentage of OtherAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.51.51.91.41.41.40.60.60.50.60.61.2

Taxes Payable Current

us-gaap:TaxesPayableCurrent



Period End2020-03-312019-12-312019-09-302018-09-30
Value32393127
Percentage of TaxesPayableCurrent100.0100.0100.0100.0
Percentage of Assets0.71.00.91.1

Accrued Income Taxes Current

Liabilities Noncurrent

us-gaap:LiabilitiesNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-09-30
Value11907955234814484353653513283213163042872832762672602502402172021851781631531461401291161211151091079590828472716646
Percentage of LiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets26.820.515.415.215.015.014.013.713.012.912.812.612.011.812.011.911.610.810.49.69.18.38.27.57.16.66.36.05.76.06.15.96.15.65.85.25.54.95.25.24.4

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent



Period End2020-03-312019-09-30
Value3780
Percentage of LongTermDebtNoncurrent100.00.0
Percentage of Assets8.50.0

Deferred Tax Liabilities Noncurrent

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-09-30
Value626213111795816559535144413735343032313025232322222224252123212120191818161817161514
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.41.63.93.73.22.82.52.32.12.11.81.71.61.51.51.41.41.31.31.11.01.01.01.01.01.11.11.01.11.01.11.11.11.11.21.01.21.21.21.21.3

Common Stock Value

us-gaap:CommonStockValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-09-30
Value22321114298291320202120171719171392516105205151821109262290294315326349357379380505515534517504462
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.05.54.23.11.00.50.80.80.80.80.70.70.80.70.60.41.10.70.40.30.90.20.70.91.05.011.813.514.315.517.119.020.322.324.331.633.536.238.039.843.3

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-10-012018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-09-30
Value17971736163815431457141713231287126712261226122912021180119311851190116912621321133413131362136313881400135112831207113910751006938866797731663600545489441338
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets40.544.848.348.648.749.00.049.449.548.749.249.649.749.449.851.452.852.254.557.259.059.260.962.463.864.761.057.556.255.152.852.751.149.347.046.641.539.137.036.034.831.7

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-09-30
Value-22-18-19-18-19-21-22-21-20-19-17-15-15-16-13-13-13-16-15-13-13-12-9-6-7-7-7-9-5-4-3-5-6-6-6-3-4-4-3-4-2
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.5-0.5-0.6-0.6-0.6-0.8-0.9-0.9-0.8-0.8-0.7-0.6-0.6-0.7-0.6-0.6-0.6-0.7-0.7-0.6-0.6-0.5-0.4-0.3-0.3-0.3-0.3-0.4-0.3-0.2-0.2-0.3-0.3-0.4-0.4-0.2-0.3-0.3-0.2-0.4-0.2

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value1811442061501931972041821841892131621751892041701332031831721421861691388115814413110373
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax31.225.334.926.735.536.436.333.634.636.339.631.433.836.738.834.327.541.736.635.730.140.336.531.419.539.139.640.938.438.7

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value-686-29-294-213153-60-228-55-51-121-79-754029-152919-204145114-6520-107070-133-67-97-40
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-117.7-5.2-49.8-37.928.1-11.1-40.5-10.2-9.6-23.2-14.8-1.410.5-0.05.6-3.16.14.0-40.930.024.3-14.24.4-2.416.817.3-36.5-20.9-36.1-21.4

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value34720026-100-82-150-121-150-130-149-120-147-128-148-123-199-180-147-123-155-130-147-125-144-186-37-23-63
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax59.53.70.04.7-18.4-15.1-26.7-22.3-28.1-24.9-27.8-23.3-28.5-24.9-28.4-24.9-41.3-36.8-29.3-25.6-32.9-28.3-31.8-28.6-34.4-45.9-10.4-7.3-2.21.8

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value1811442061501931972041821841892131621751892041701332031831721421861691388115814413110373
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax31.225.334.926.735.536.436.333.634.636.339.631.433.836.738.834.327.541.736.635.730.140.336.531.419.539.139.640.938.438.7

Net Income Loss

us-gaap:NetIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-06-30
Value619894851161301321221098813597939410891758997938589947969687668636967726866676255554840332922
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.517.316.115.221.324.123.622.620.616.925.218.918.018.320.718.515.618.319.419.318.219.220.218.116.616.719.318.418.119.018.720.520.220.621.521.520.020.719.017.616.115.314.4

us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312011-12-312010-12-31
Value619894851161301321221096655
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.517.316.115.221.324.123.622.620.620.620.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.0

Depreciation Depletion And Amortization

us-gaap:DepreciationDepletionAndAmortization



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value24182118141415141415151515141414141313121313121111119555
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Inventories

us-gaap:IncreaseDecreaseInInventories



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value-1-2-12100100-1-1-100-110301312101001
Percentage of IncreaseDecreaseInInventories100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value-686-29-294-213153-60-228-55-51-121-79-754029-152919-204145114-6520-107070-133-67-97-40
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-117.7-5.2-49.8-37.928.1-11.1-40.5-10.2-9.6-23.2-14.8-1.410.5-0.05.6-3.16.14.0-40.930.024.3-14.24.4-2.416.817.3-36.5-20.9-36.1-21.4

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value13222032292117199677914171616131821101075547553
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments To Acquire Investments

us-gaap:PaymentsToAcquireInvestments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value1418039202019035614511423819110947981298631107262927617712897141147313262251119
Percentage of PaymentsToAcquireInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value34720026-100-82-150-121-150-130-149-120-147-128-148-123-199-180-147-123-155-130-147-125-144-186-37-23-63
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax59.53.70.04.7-18.4-15.1-26.7-22.3-28.1-24.9-27.8-23.3-28.5-24.9-28.4-24.9-41.3-36.8-29.3-25.6-32.9-28.3-31.8-28.6-34.4-45.9-10.4-7.3-2.21.8

Proceeds From Issuance Of Long Term Debt

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value5000010010115015015015015015015015015015020020014915015614915015015020050342415
Percentage of PaymentsForRepurchaseOfCommonStock100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations



Period End2020-03-312019-12-312019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-06-302016-03-312015-12-312015-06-302015-03-312014-12-312014-06-302014-03-312013-12-312013-06-302013-03-312012-12-312011-06-302010-06-30
Value0.2650.2280.2010.2270.2080.2040.250.3870.3110.3340.3270.3440.3450.3210.3380.370.340.3760.3720.3780.3630.330.3720.3060.364
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price

Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period

Share Based Compensation

us-gaap:ShareBasedCompensation



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-312011-06-302010-12-312010-06-302009-12-31
Value5047434039383638414041434346383841384136363025313534262222221717
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Net

Unrecognized Tax Benefits

Deferred Tax Assets Valuation Allowance

Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset



Period End2020-03-312019-12-312019-09-30
Value3273030
Percentage of OperatingLeaseRightOfUseAsset100.0100.00.0

Cash And Cash Equivalents Period Increase Decrease

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-09-30
Value579738602691727481425600597613674515
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessAcquisition, us-gaap:IncomeStatementLocation

us-gaap:BusinessCombinationAcquisitionRelatedCosts

ffiv:ShapeSecurityInc., us-gaap:GeneralAndAdministrativeExpense



Period End2020-03-31
Value11
Percentage of BusinessCombinationAcquisitionRelatedCosts100.0

us-gaap:CapitalizedContractCostAmortization



Period End2020-03-312019-12-312019-03-312018-12-31
Value8877
Percentage of CapitalizedContractCostAmortization100.0100.0100.0100.0

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value-157135-87-3624655-1735-16-61
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:MajorCustomers, us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType

us-gaap:ConcentrationRiskPercentage1

ffiv:WorldwideDistributor1, us-gaap:SalesRevenueNet, us-gaap:GeographicConcentrationRisk



Period End2020-03-312019-12-312019-06-302019-03-312018-12-312018-06-302018-03-312017-12-31
Value0.1730.1650.1780.20.1680.1690.1660.153
Percentage of ConcentrationRiskPercentage1100.0100.0100.0100.0100.0100.0100.0100.0

ffiv:WorldwideDistributor2, us-gaap:SalesRevenueNet, us-gaap:GeographicConcentrationRisk



Period End2020-03-312019-12-312019-06-302019-03-312018-12-312018-06-302018-03-312017-12-31
Value0.00.110.1080.10.00.110.120.123
Percentage of ConcentrationRiskPercentage10.066.760.750.00.065.172.380.4

ffiv:WorldwideDistributor3, us-gaap:SalesRevenueNet, us-gaap:GeographicConcentrationRisk



Period End2020-03-312019-12-312019-06-302019-03-312018-12-312018-06-302018-03-312017-12-31
Value0.00.1010.00.1030.1090.1050.1070.115
Percentage of ConcentrationRiskPercentage10.061.20.051.564.962.164.575.2

ffiv:WorldwideDistributor4, us-gaap:SalesRevenueNet, us-gaap:GeographicConcentrationRisk



Period End2020-03-312019-06-302019-03-312018-12-312018-06-302018-03-312017-12-31
Value0.00.00.00.00.1140.1120.109
Percentage of ConcentrationRiskPercentage10.00.00.00.067.567.571.2

us-gaap:Range, us-gaap:CreditFacility, us-gaap:SubsequentEventType, us-gaap:VariableRate

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1

srt:Maximum, ffiv:TermLoanFacility, us-gaap:SubsequentEvent, ffiv:AlternateBaseRate



Period End2020-01-24
Value0.0075
Percentage of DebtInstrumentBasisSpreadOnVariableRate1100.0

srt:Maximum, ffiv:TermLoanFacility, us-gaap:SubsequentEvent, us-gaap:LondonInterbankOfferedRateLIBOR



Period End2020-01-24
Value0.0175
Percentage of DebtInstrumentBasisSpreadOnVariableRate1233.3

srt:Maximum, us-gaap:RevolvingCreditFacility, us-gaap:SubsequentEvent, ffiv:AlternateBaseRate



Period End2020-01-31
Value0.0075
Percentage of DebtInstrumentBasisSpreadOnVariableRate10.0

srt:Maximum, us-gaap:RevolvingCreditFacility, us-gaap:SubsequentEvent, us-gaap:LondonInterbankOfferedRateLIBOR



Period End2020-01-31
Value0.0175
Percentage of DebtInstrumentBasisSpreadOnVariableRate10.0

srt:Minimum, ffiv:TermLoanFacility, us-gaap:SubsequentEvent, ffiv:AlternateBaseRate



Period End2020-01-24
Value0.00125
Percentage of DebtInstrumentBasisSpreadOnVariableRate116.7

srt:Minimum, ffiv:TermLoanFacility, us-gaap:SubsequentEvent, us-gaap:LondonInterbankOfferedRateLIBOR



Period End2020-01-24
Value0.01125
Percentage of DebtInstrumentBasisSpreadOnVariableRate1150.0

srt:Minimum, us-gaap:RevolvingCreditFacility, us-gaap:SubsequentEvent, ffiv:AlternateBaseRate



Period End2020-01-31
Value0.00125
Percentage of DebtInstrumentBasisSpreadOnVariableRate10.0

srt:Minimum, us-gaap:RevolvingCreditFacility, us-gaap:SubsequentEvent, us-gaap:LondonInterbankOfferedRateLIBOR



Period End2020-01-31
Value0.01125
Percentage of DebtInstrumentBasisSpreadOnVariableRate10.0

us-gaap:Range, us-gaap:CreditFacility, us-gaap:VariableRate

srt:Maximum, ffiv:TermLoanFacility, ffiv:AlternateBaseRate



Period End2020-01-24
Value0.0075
Percentage of DebtInstrumentBasisSpreadOnVariableRate1100.0

srt:Maximum, ffiv:TermLoanFacility, us-gaap:LondonInterbankOfferedRateLIBOR



Period End2020-01-24
Value0.0175
Percentage of DebtInstrumentBasisSpreadOnVariableRate1233.3

srt:Maximum, us-gaap:RevolvingCreditFacility, ffiv:AlternateBaseRate



Period End2020-01-31
Value0.0075
Percentage of DebtInstrumentBasisSpreadOnVariableRate10.0

srt:Maximum, us-gaap:RevolvingCreditFacility, us-gaap:LondonInterbankOfferedRateLIBOR



Period End2020-01-31
Value0.0175
Percentage of DebtInstrumentBasisSpreadOnVariableRate10.0

srt:Minimum, ffiv:TermLoanFacility, ffiv:AlternateBaseRate



Period End2020-01-24
Value0.00125
Percentage of DebtInstrumentBasisSpreadOnVariableRate116.7

srt:Minimum, ffiv:TermLoanFacility, us-gaap:LondonInterbankOfferedRateLIBOR



Period End2020-01-24
Value0.01125
Percentage of DebtInstrumentBasisSpreadOnVariableRate1150.0

srt:Minimum, us-gaap:RevolvingCreditFacility, ffiv:AlternateBaseRate



Period End2020-01-31
Value0.00125
Percentage of DebtInstrumentBasisSpreadOnVariableRate10.0

srt:Minimum, us-gaap:RevolvingCreditFacility, us-gaap:LondonInterbankOfferedRateLIBOR



Period End2020-01-24
Value0.01125
Percentage of DebtInstrumentBasisSpreadOnVariableRate1150.0

us-gaap:DeferredIncomeTaxesAndTaxCredits



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-312010-12-31
Value7-1-260211314-3-12-2-6134-7-3-10105-8-100
Percentage of DeferredIncomeTaxesAndTaxCredits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectOfExchangeRateOnCashAndCashEquivalents



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value-10-10000-200-100-20020-30-3-2-20000000
Percentage of EffectOfExchangeRateOnCashAndCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-06-30
Value83127118107150165159154146144153141139140162139115132149140136134149127110109125106941101121111061011039084827663524534
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value21-23362114223-112-816-6-163742-10-131912-192619-5-2933362613-6
Percentage of IncreaseDecreaseInAccountsPayableAndAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsReceivable



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value-37322-8-428-2700-31-19455-2-12018-17130203172422302
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInContractWithCustomerLiability



Period End2020-03-312019-12-312019-06-302019-03-312018-12-312018-06-302018-03-312017-12-31
Value43911166171926
Percentage of IncreaseDecreaseInContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherCurrentAssets



Period End2020-03-312019-12-312019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-06-302016-03-312015-12-312015-06-302015-03-312014-12-312014-06-302014-03-312013-12-312012-12-312011-12-31
Value14518826-66-110-10-16150140-1426-243
Percentage of IncreaseDecreaseInOtherCurrentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherNoncurrentAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-312010-12-31
Value6-21311-200-1001010100000001001000
Percentage of IncreaseDecreaseInOtherNoncurrentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeInterest



Period End2020-03-312019-12-312019-03-312018-12-31
Value3577
Percentage of InvestmentIncomeInterest100.0100.0100.0100.0

us-gaap:LeaseCost



Period End2020-03-31
Value18
Percentage of LeaseCost100.0

us-gaap:Range, us-gaap:CreditFacility

us-gaap:LineOfCreditFacilityCommitmentFeePercentage

srt:Maximum, us-gaap:RevolvingCreditFacility



Period End2020-01-31
Value0.003
Percentage of LineOfCreditFacilityCommitmentFeePercentage100.0

srt:Minimum, us-gaap:RevolvingCreditFacility



Period End2020-01-31
Value0.00125
Percentage of LineOfCreditFacilityCommitmentFeePercentage41.7

us-gaap:Range, us-gaap:CreditFacility, us-gaap:SubsequentEventType

srt:Maximum, us-gaap:RevolvingCreditFacility, us-gaap:SubsequentEvent



Period End2020-01-31
Value0.003
Percentage of LineOfCreditFacilityCommitmentFeePercentage100.0

srt:Minimum, us-gaap:RevolvingCreditFacility, us-gaap:SubsequentEvent



Period End2020-01-31
Value0.00125
Percentage of LineOfCreditFacilityCommitmentFeePercentage41.7

us-gaap:OperatingLeaseCost



Period End2020-03-31
Value12
Percentage of OperatingLeaseCost100.0

us-gaap:OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value-20012000-1-10000001-1001000001-100
Percentage of OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-06-302013-03-312012-12-312012-06-302012-03-312011-12-31
Value-4001200-1-1-1-200-2002-1-10-1-2-2000-3-10000
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-4001200-1-1
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.099.9100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value-58000.09000.03000.0-112000.00.00.01000.0-1000.00.0-9000.00.0285000.023000.02000.02000.09000.02000.0-17000.00.055000.019000.012000.034000.037000.038000.038000.024000.00.0179000.023000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax100.0100.0100.0100.00.00.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value-17000.02000.00.0-35000.00.00.00.00.00.0-3000.00.0171000.014000.01000.01000.06000.01000.0-10000.0-1000.033000.011000.07000.020000.022000.022000.022000.014000.00.0105000.014000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax100.0100.00.0100.00.00.00.00.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-06-302013-03-312012-12-312012-06-302012-03-312011-12-312011-06-302011-03-312010-12-312010-06-30
Value-20002000-1-10000001-100100000-1000001000
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value000000000000000000000000000100
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherNoncashIncomeExpense



Period End2020-03-312019-12-312019-03-312018-12-31
Value-85000.031000.0294000.0-251000.0
Percentage of OtherNoncashIncomeExpense100.0100.0100.0100.0

us-gaap:OtherSignificantNoncashTransactionValueOfConsiderationReceived1



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value000513159000
Percentage of OtherSignificantNoncashTransactionValueOfConsiderationReceived10.00.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:BusinessAcquisition

us-gaap:PaymentsToAcquireBusinessesGross

ffiv:ShapeSecurityInc.



Period End2020-01-24
Value1000
Percentage of PaymentsToAcquireBusinessesGross100.0

us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

ffiv:ShapeSecurityInc., us-gaap:SubsequentEvent



Period End2020-01-24
Value1000
Percentage of PaymentsToAcquireBusinessesGross100.0

us-gaap:ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value020026018028019028018026018023016021013119813
Percentage of ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions100.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value8715011715620015114310873113118848110517371779569140130120869517416816519815982
Percentage of ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt



Period End2020-03-312019-12-312019-03-312018-12-31
Value2092220
Percentage of ProceedsFromSaleOfAvailableForSaleSecuritiesDebt100.0100.0100.00.0

us-gaap:RestructuringCharges



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312009-03-31
Value070000180001200000004
Percentage of RestructuringCharges0.0100.00.00.00.00.0100.00.00.00.0100.00.00.00.00.00.00.00.0100.0

us-gaap:ShortTermLeaseCost



Period End2020-03-31
Value813000.0
Percentage of ShortTermLeaseCost100.0

us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures

us-gaap:CommonStock



Period End2020-03-312019-12-312019-03-312018-12-31
Value248000.0256000.0254000.0277000.0
Percentage of StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:CommonStock



Period End2020-03-31
Value20000.0
Percentage of StockIssuedDuringPeriodSharesStockOptionsExercised100.0

us-gaap:StockIssuedDuringPeriodValueEmployeeStockPurchasePlan



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302010-12-31
Value-19200260180287
Percentage of StockIssuedDuringPeriodValueEmployeeStockPurchasePlan100.0100.00.0100.0100.0100.00.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:CommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302011-12-312010-12-31
Value-192002601802897
Percentage of StockIssuedDuringPeriodValueEmployeeStockPurchasePlan100.0100.00.0100.0100.0100.00.0100.00.0100.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312010-12-31
Value61474342393836384122
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:CommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312011-12-312010-12-31
Value6147434239383638412222
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised



Period End2020-03-312019-12-312019-09-302019-06-302018-09-302018-06-302010-12-31
Value0000001
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.0100.0100.0100.00.00.0100.0

us-gaap:StatementEquityComponents

us-gaap:CommonStock



Period End2020-03-312019-12-312019-09-302019-06-302018-09-302018-06-302018-03-312011-12-312010-12-31
Value000000001
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.0100.0100.0100.00.00.00.00.0100.0

us-gaap:StockRepurchasedAndRetiredDuringPeriodShares



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312012-11-152011-08-02
Value000000195
Percentage of StockRepurchasedAndRetiredDuringPeriodShares100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312010-12-31
Value500010010115015015024
Percentage of StockRepurchasedAndRetiredDuringPeriodValue100.00.00.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:CommonStock



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312011-12-312010-12-31
Value500023643668403424
Percentage of StockRepurchasedAndRetiredDuringPeriodValue100.00.00.023.464.124.345.826.80.0100.0

us-gaap:VariableLeaseCost



Period End2020-03-31
Value4
Percentage of VariableLeaseCost100.0

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment



Period End2020-03-312019-12-312019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-06-302016-03-312015-12-312015-06-302015-03-312014-12-312014-06-302014-03-312013-12-312013-06-302013-03-312012-12-312012-06-302012-03-312011-12-312011-06-302011-03-312010-12-312010-06-30
Value000000000000000000000000000011
Percentage of WeightedAverageNumberDilutedSharesOutstandingAdjustment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccruedIncomeTaxesNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302018-09-302011-09-302010-09-30
Value414442353057
Percentage of AccruedIncomeTaxesNoncurrent100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccruedLiabilitiesCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-09-30
Value28625023521319718418016318517618717818419817813514314513011511813210894961259289841178669789767596364614753
Percentage of AccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-09-30
Value33322222121122211112334444333333332223433
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InformationByCategoryOfDebtSecurity

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax

us-gaap:AvailableforsaleSecurities



Period End2020-03-312019-12-312019-09-30
Value531000.0522000.0435000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax100.0100.0100.0

us-gaap:HeldtomaturitySecurities



Period End2020-03-312019-12-312019-09-30
Value330000.0272000.0479000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax62.152.1110.1

us-gaap:InformationByCategoryOfDebtSecurity, us-gaap:InvestmentType

us-gaap:AvailableforsaleSecurities, ffiv:MunicipalBondsAndNotes



Period End2020-03-312019-12-312019-09-30
Value10000.05000.06000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax1.91.01.4

us-gaap:AvailableforsaleSecurities, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value259000.0463000.0402000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax48.888.792.4

us-gaap:AvailableforsaleSecurities, us-gaap:USGovernmentAgenciesDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value37000.012000.09000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax7.02.32.1

us-gaap:AvailableforsaleSecurities, us-gaap:USGovernmentDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value225000.042000.018000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax42.48.04.1

us-gaap:HeldtomaturitySecurities, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value259000.0267000.0469000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax48.851.1107.8

us-gaap:HeldtomaturitySecurities, us-gaap:USGovernmentAgenciesDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value71000.00.05000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax13.40.01.1

us-gaap:InformationByCategoryOfDebtSecurity

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax

us-gaap:AvailableforsaleSecurities



Period End2020-03-312019-12-312019-09-30
Value727000.065000.0117000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax100.0100.0100.0

us-gaap:HeldtomaturitySecurities



Period End2020-03-312019-12-312019-09-30
Value200
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax399.2313.8402.6

us-gaap:InformationByCategoryOfDebtSecurity, us-gaap:InvestmentType

us-gaap:AvailableforsaleSecurities, ffiv:MunicipalBondsAndNotes



Period End2020-03-312019-12-312019-09-30
Value9000.03000.05000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax1.24.64.3

us-gaap:AvailableforsaleSecurities, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value718000.044000.097000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax98.867.782.9

us-gaap:AvailableforsaleSecurities, us-gaap:USGovernmentAgenciesDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value0.00.01000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax0.00.00.9

us-gaap:AvailableforsaleSecurities, us-gaap:USGovernmentDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value0.018000.014000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax0.027.712.0

us-gaap:HeldtomaturitySecurities, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value200
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax398.8266.2376.9

us-gaap:HeldtomaturitySecurities, us-gaap:USGovernmentAgenciesDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value3000.027000.021000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax0.441.517.9

us-gaap:InformationByCategoryOfDebtSecurity

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis

us-gaap:AvailableforsaleSecurities



Period End2020-03-312019-12-312019-09-30
Value248426372
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis100.0100.0100.0

us-gaap:HeldtomaturitySecurities



Period End2020-03-312019-12-312019-09-30
Value207311358
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis83.573.296.1

us-gaap:InformationByCategoryOfDebtSecurity, us-gaap:InvestmentType

us-gaap:AvailableforsaleSecurities, ffiv:MunicipalBondsAndNotes



Period End2020-03-312019-12-312019-09-30
Value8912
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis3.22.23.3

us-gaap:AvailableforsaleSecurities, us-gaap:CertificatesOfDeposit



Period End2020-03-312019-12-312019-09-30
Value493000.0991000.0249000.0
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis0.20.20.1

us-gaap:AvailableforsaleSecurities, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value202264259
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis81.461.969.5

us-gaap:AvailableforsaleSecurities, us-gaap:USGovernmentAgenciesDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value102022
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis4.34.85.9

us-gaap:AvailableforsaleSecurities, us-gaap:USGovernmentDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value2713178
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis10.930.921.2

us-gaap:HeldtomaturitySecurities, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value183274298
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis73.864.480.2

us-gaap:HeldtomaturitySecurities, us-gaap:USGovernmentAgenciesDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value243051
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis9.87.013.8

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:AvailableForSaleSecuritiesDebtSecurities

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-30
Value100249140
Percentage of AvailableForSaleSecuritiesDebtSecurities100.0100.0100.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-30
Value453781884
Percentage of AvailableForSaleSecuritiesDebtSecurities451.6313.5631.0

us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-30
Value55310301025
Percentage of AvailableForSaleSecuritiesDebtSecurities551.6413.5731.0

us-gaap:InformationByCategoryOfDebtSecurity

us-gaap:AvailableforsaleSecurities



Period End2020-03-312019-12-312019-09-30
Value248426373
Percentage of AvailableForSaleSecuritiesDebtSecurities247.4171.3266.0

us-gaap:HeldtomaturitySecurities



Period End2020-03-312019-12-312019-09-30
Value204312358
Percentage of AvailableForSaleSecuritiesDebtSecurities204.2125.2255.6

us-gaap:InformationByCategoryOfDebtSecurity, us-gaap:InvestmentType

us-gaap:AvailableforsaleSecurities, ffiv:MunicipalBondsAndNotes



Period End2020-03-312019-12-312019-09-30
Value8912
Percentage of AvailableForSaleSecuritiesDebtSecurities8.03.78.6

us-gaap:AvailableforsaleSecurities, us-gaap:CertificatesOfDeposit



Period End2020-03-312019-12-312019-09-30
Value493000.0991000.0249000.0
Percentage of AvailableForSaleSecuritiesDebtSecurities0.50.40.2

us-gaap:AvailableforsaleSecurities, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value201264259
Percentage of AvailableForSaleSecuritiesDebtSecurities201.1106.1185.1

us-gaap:AvailableforsaleSecurities, us-gaap:USGovernmentAgenciesDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value102022
Percentage of AvailableForSaleSecuritiesDebtSecurities10.68.215.8

us-gaap:AvailableforsaleSecurities, us-gaap:USGovernmentDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value2713178
Percentage of AvailableForSaleSecuritiesDebtSecurities27.152.956.3

us-gaap:HeldtomaturitySecurities, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value180274298
Percentage of AvailableForSaleSecuritiesDebtSecurities180.0110.2213.1

us-gaap:HeldtomaturitySecurities, us-gaap:USGovernmentAgenciesDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value243051
Percentage of AvailableForSaleSecuritiesDebtSecurities24.312.036.7

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType

us-gaap:AvailableForSaleSecuritiesDebtSecuritiesCurrent

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, ffiv:MunicipalBondsAndNotes



Period End2020-03-312019-12-312019-09-30
Value8912
Percentage of AvailableForSaleSecuritiesDebtSecuritiesCurrent100.0100.0100.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:CertificatesOfDeposit



Period End2020-03-312019-12-312019-09-30
Value493000.0991000.0249000.0
Percentage of AvailableForSaleSecuritiesDebtSecuritiesCurrent6.110.82.1

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value201264259
Percentage of AvailableForSaleSecuritiesDebtSecuritiesCurrent2504.82877.32139.9

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:USGovernmentAgenciesDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value102022
Percentage of AvailableForSaleSecuritiesDebtSecuritiesCurrent132.4221.4182.6

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:USGovernmentDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value2713178
Percentage of AvailableForSaleSecuritiesDebtSecuritiesCurrent338.01434.3651.3

us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType

us-gaap:FairValueMeasurementsRecurring, ffiv:MunicipalBondsAndNotes



Period End2020-03-312019-12-312019-09-30
Value8912
Percentage of AvailableForSaleSecuritiesDebtSecuritiesCurrent100.0100.0100.0

us-gaap:FairValueMeasurementsRecurring, us-gaap:CertificatesOfDeposit



Period End2020-03-312019-12-312019-09-30
Value493000.0991000.0249000.0
Percentage of AvailableForSaleSecuritiesDebtSecuritiesCurrent6.110.82.1

us-gaap:FairValueMeasurementsRecurring, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value201264259
Percentage of AvailableForSaleSecuritiesDebtSecuritiesCurrent2504.82877.32139.9

us-gaap:FairValueMeasurementsRecurring, us-gaap:USGovernmentAgenciesDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value102022
Percentage of AvailableForSaleSecuritiesDebtSecuritiesCurrent132.4221.4182.6

us-gaap:FairValueMeasurementsRecurring, us-gaap:USGovernmentDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value2713178
Percentage of AvailableForSaleSecuritiesDebtSecuritiesCurrent338.01434.3651.3

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType

us-gaap:AvailableForSaleSecuritiesDebtSecuritiesNoncurrent

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value180274298
Percentage of AvailableForSaleSecuritiesDebtSecuritiesNoncurrent100.0100.0100.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:USGovernmentAgenciesDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value243051
Percentage of AvailableForSaleSecuritiesDebtSecuritiesNoncurrent13.510.917.2

us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType

us-gaap:FairValueMeasurementsRecurring, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value180274298
Percentage of AvailableForSaleSecuritiesDebtSecuritiesNoncurrent100.0100.0100.0

us-gaap:FairValueMeasurementsRecurring, us-gaap:USGovernmentAgenciesDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value243051
Percentage of AvailableForSaleSecuritiesDebtSecuritiesNoncurrent13.510.917.2

us-gaap:BusinessAcquisition

us-gaap:BusinessAcquisitionCostOfAcquiredEntityTransactionCosts

ffiv:ShapeSecurityInc.



Period End2020-01-24
Value23
Percentage of BusinessAcquisitionCostOfAcquiredEntityTransactionCosts100.0

us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets

ffiv:ShapeSecurityInc.



Period End2020-01-24
Value1101
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets100.0

us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents

ffiv:ShapeSecurityInc.



Period End2020-01-24
Value53
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents100.0

us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther

ffiv:ShapeSecurityInc.



Period End2020-01-24
Value22
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther100.0

us-gaap:BusinessAcquisition, us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles

ffiv:ShapeSecurityInc., us-gaap:CustomerRelationships



Period End2020-01-24
Value21
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles100.0

ffiv:ShapeSecurityInc., us-gaap:DevelopedTechnologyRights



Period End2020-01-24
Value120
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles571.4

ffiv:ShapeSecurityInc., us-gaap:TradeNames



Period End2020-01-24
Value9
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles45.2

us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities

ffiv:ShapeSecurityInc.



Period End2020-01-24
Value88
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities100.0

us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet

ffiv:ShapeSecurityInc.



Period End2020-01-24
Value1013
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet100.0

us-gaap:CapitalizedContractCostNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value6458595551530
Percentage of CapitalizedContractCostNet100.0100.0100.0100.0100.0100.00.0

us-gaap:CapitalizedContractCostNetNoncurrent



Period End2020-03-312019-12-312019-09-302018-09-30
Value3730310
Percentage of CapitalizedContractCostNetNoncurrent100.0100.0100.00.0

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:CashAndCashEquivalentsFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-30
Value100249140
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-30
Value042153
Percentage of CashAndCashEquivalentsFairValueDisclosure0.017.0109.4

us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-30
Value100291293
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0117.0209.4

us-gaap:ContractWithCustomerAssetNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value1571351329374690
Percentage of ContractWithCustomerAssetNet100.0100.0100.0100.0100.0100.00.0

us-gaap:ContractWithCustomerAssetNetCurrent



Period End2020-03-312019-12-312019-09-302018-09-30
Value10185790
Percentage of ContractWithCustomerAssetNetCurrent100.0100.0100.00.0

us-gaap:ContractWithCustomerAssetNetNoncurrent



Period End2020-03-312019-12-312019-09-302018-09-30
Value5650530
Percentage of ContractWithCustomerAssetNetNoncurrent100.0100.0100.00.0

us-gaap:ContractWithCustomerLiability



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value1281123711981166116111491015
Percentage of ContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-10-012018-09-30
Value889847807803809796751715
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-10-012018-09-30
Value39162391363352353332299
Percentage of ContractWithCustomerLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger



Period End2020-03-312019-12-312019-09-30
Value1165127
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger100.0100.0100.0

us-gaap:InvestmentType

ffiv:MunicipalBondsAndNotes



Period End2020-03-312019-12-312019-09-30
Value027
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger0.03.96.1

us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value1162109
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger100.096.186.0

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss



Period End2020-03-312019-12-312019-09-30
Value140000.040000.0120000.0
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss100.0100.0100.0

us-gaap:InvestmentType

ffiv:MunicipalBondsAndNotes



Period End2020-03-312019-12-312019-09-30
Value0.03000.011000.0
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss0.07.59.2

us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value140000.037000.0104000.0
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss100.092.586.7

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months



Period End2020-03-312019-12-312019-09-30
Value259284296
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months100.0100.0100.0

us-gaap:InvestmentType

ffiv:MunicipalBondsAndNotes



Period End2020-03-312019-12-312019-09-30
Value210
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months1.10.50.3

us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value254171237
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months98.360.580.1

us-gaap:USGovernmentAgenciesDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value13130
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months0.611.010.4

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss



Period End2020-03-312019-12-312019-09-30
Value300
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss100.0100.0100.0

us-gaap:InvestmentType

ffiv:MunicipalBondsAndNotes



Period End2020-03-312019-12-312019-09-30
Value9000.00.00.0
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss0.30.00.0

us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value300
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss99.778.692.7

us-gaap:USGovernmentAgenciesDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value3000.027000.022000.0
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss0.111.84.7

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPosition



Period End2020-03-312019-12-312019-09-30
Value271349424
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPosition100.0100.0100.0

us-gaap:InvestmentType

ffiv:MunicipalBondsAndNotes



Period End2020-03-312019-12-312019-09-30
Value238
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPosition1.11.12.0

us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value266234347
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPosition98.467.181.9

us-gaap:USGovernmentAgenciesDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value13130
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPosition0.68.97.3

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss



Period End2020-03-312019-12-312019-09-30
Value300
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss100.0100.0100.0

us-gaap:InvestmentType

ffiv:MunicipalBondsAndNotes



Period End2020-03-312019-12-312019-09-30
Value9000.03000.011000.0
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss0.21.11.9

us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value300
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss99.780.791.5

us-gaap:USGovernmentAgenciesDebtSecurities



Period End2020-03-312019-12-312019-09-30
Value3000.027000.022000.0
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss0.110.03.7

us-gaap:CreditFacility

us-gaap:DeferredFinanceCostsGross

ffiv:TermLoanFacility



Period End2020-03-312020-01-24
Value22
Percentage of DeferredFinanceCostsGross100.0100.0

us-gaap:DeferredIncomeTaxAssetsNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-10-012018-09-30
Value4729272521232533
Percentage of DeferredIncomeTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxLiabilitiesNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value221000.0258000.0313000.0352000.0402000.0409000.035000.0
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredRentCreditNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302018-09-30
Value00666531
Percentage of DeferredRentCreditNoncurrent0.00.0100.0100.0100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent



Period End2020-03-312019-12-312019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-30
Value14111013810410910590847361
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InventoryRawMaterials



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-09-30
Value1010111211109999991011109989777655554443344443
Percentage of InventoryRawMaterials100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CreditFacility

us-gaap:LineOfCredit

ffiv:TermLoanFacility



Period End2020-03-31
Value400
Percentage of LineOfCredit100.0

us-gaap:RevolvingCreditFacility



Period End2020-03-31
Value0.0
Percentage of LineOfCredit0.0

us-gaap:CreditFacility, us-gaap:SubsequentEventType, us-gaap:VariableRate

us-gaap:LineOfCreditFacilityInterestRateAtPeriodEnd

ffiv:TermLoanFacility, us-gaap:SubsequentEvent, ffiv:AlternateBaseRate



Period End2020-01-24
Value0.00125
Percentage of LineOfCreditFacilityInterestRateAtPeriodEnd100.0

ffiv:TermLoanFacility, us-gaap:SubsequentEvent, us-gaap:LondonInterbankOfferedRateLIBOR



Period End2020-01-24
Value0.01125
Percentage of LineOfCreditFacilityInterestRateAtPeriodEnd900.0

us-gaap:CreditFacility

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity

ffiv:TermLoanFacility



Period End2020-01-24
Value400
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity100.0

us-gaap:RevolvingCreditFacility



Period End2020-01-31
Value350
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity0.0

us-gaap:CreditFacility, us-gaap:SubsequentEventType

ffiv:TermLoanFacility, us-gaap:SubsequentEvent



Period End2020-01-24
Value400
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity100.0

us-gaap:RevolvingCreditFacility, us-gaap:SubsequentEvent



Period End2020-01-31
Value350
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity0.0

us-gaap:OperatingLeaseLiability



Period End2020-03-312019-12-31
Value404384
Percentage of OperatingLeaseLiability100.0100.0

us-gaap:OperatingLeaseLiabilityCurrent



Period End2020-03-312019-12-312019-09-30
Value46420
Percentage of OperatingLeaseLiabilityCurrent100.0100.00.0

us-gaap:OperatingLeaseLiabilityNoncurrent



Period End2020-03-312019-12-312019-09-30
Value3573420
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.00.0

us-gaap:OtherAccruedLiabilitiesNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302018-09-30
Value211823163
Percentage of OtherAccruedLiabilitiesNoncurrent100.0100.0100.0100.0100.0

us-gaap:OtherAssetsMiscellaneousCurrent



Period End2020-03-312019-12-312019-09-302019-06-302018-09-30
Value3620262712
Percentage of OtherAssetsMiscellaneousCurrent100.0100.0100.0100.0100.0

us-gaap:OtherAssetsMiscellaneousNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302018-09-30
Value1513108010
Percentage of OtherAssetsMiscellaneousNoncurrent100.0100.0100.0100.0100.0

us-gaap:PrepaidExpenseCurrent



Period End2020-03-312019-12-312019-09-302019-06-302018-09-30
Value5355498239
Percentage of PrepaidExpenseCurrent100.0100.0100.0100.0100.0

us-gaap:RestrictedCash



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value63331111
Percentage of RestrictedCash100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestructuringReserve



Period End2020-03-312019-12-312019-09-30
Value020
Percentage of RestructuringReserve100.0100.00.0

us-gaap:RevenueRemainingPerformanceObligationPercentage



Period End2020-03-312019-12-31
Value0.6940.685
Percentage of RevenueRemainingPerformanceObligationPercentage100.0100.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-09-302008-09-302007-09-30
Value199819291761162314671409128512651226122712291204118411941185118711801262131613271321135513691400141414541538148814281386132912821217117011051165111210751003941799718770
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-09-302008-09-302007-09-30
Value-22-18-19-18-19-21-22-21-20-19-17-13-15-9-7-3-5-6-6-6-3-4-4-3-4-2-60
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-1.1-1.0-1.1-1.1-1.3-1.6-1.7-1.7-1.7-1.6-1.5-1.1-1.2-0.7-0.5-0.3-0.5-0.5-0.6-0.6-0.3-0.4-0.4-0.3-0.5-0.3-0.8-0.1

us-gaap:CommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-09-302008-09-302007-09-30
Value2232111429829132020212017131015262326349357379380505515534517504462477598
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest11.210.98.16.12.00.91.61.61.71.61.41.10.81.217.124.627.329.332.434.443.446.449.751.553.657.966.577.7

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-09-302008-09-302007-09-30
Value1797173616381543145714171287126712261226122911851321136312831006938866797731663600545489441338247172
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest90.090.093.095.099.3100.6100.1100.2100.0100.0100.0100.0100.499.583.475.773.271.268.266.156.954.050.748.846.942.434.422.4

us-gaap:UnbilledContractsReceivable



Period End2020-03-312019-12-312019-09-302019-06-302018-09-30
Value272728510
Percentage of UnbilledContractsReceivable100.0100.0100.0100.00.0

Line plots across dimensions of each concept

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService


us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementGeographical


us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService


us-gaap:NoncurrentAssets us-gaap:StatementGeographical