WK


Line plots across dimensions of each concept
Line plots across concepts
Tables

Table of contents


us-gaap:StatementClassOfStock
us-gaap:CommonStockValue
us-gaap:StatementEquityComponents
us-gaap:SharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding
us-gaap:StatementClassOfStock

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic
us-gaap:StatementClassOfStock

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted
us-gaap:StatementClassOfStock
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EarningsPerShareBasic
us-gaap:StatementClassOfStock

us-gaap:EarningsPerShareDiluted
us-gaap:StatementClassOfStock

us-gaap:EarningsPerShareBasicAndDiluted
us-gaap:StatementClassOfStock

us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:IncomeStatementLocation
us-gaap:ProductOrService, us-gaap:IncomeStatementLocation

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:CostOfGoodsAndServicesSold
us-gaap:ProductOrService

us-gaap:GeneralAndAdministrativeExpense

us-gaap:GrossProfit

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxesPaidNet

us-gaap:InterestExpense
us-gaap:Restatement

us-gaap:InterestExpenseDebt

us-gaap:InterestPaidNet

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents
us-gaap:StatementClassOfStock
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic
us-gaap:StatementClassOfStock
us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

us-gaap:OperatingExpenses

us-gaap:OperatingIncomeLoss

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:ResearchAndDevelopmentExpense

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:EquitySecuritiesByIndustry
us-gaap:ProductOrService

us-gaap:SellingAndMarketingExpense

us-gaap:Assets

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:AssetsCurrent

us-gaap:CashAndCashEquivalentsAtCarryingValue
us-gaap:BalanceSheetLocation
us-gaap:BalanceSheetLocation, us-gaap:CashAndCashEquivalents
us-gaap:CashAndCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:AccountsReceivableNetCurrent

us-gaap:PrepaidExpenseAndOtherAssetsCurrent
us-gaap:PropertyPlantAndEquipmentByType
us-gaap:PropertyPlantAndEquipmentGross

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:DeferredTaxAssetsLiabilitiesNet

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent

us-gaap:AccountsPayableCurrent

us-gaap:AccruedLiabilitiesCurrent

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:LiabilitiesCurrent

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OtherAccruedLiabilitiesCurrent
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:LongTermDebt

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
us-gaap:StatementClassOfStock
us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapital

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:AmortizationOfFinancingCosts

us-gaap:DepreciationDepletionAndAmortization

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:DeferredTaxAssetsNet

us-gaap:UnrecognizedTaxBenefits

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:AccretionAmortizationOfDiscountsAndPremiumsInvestments

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation
us-gaap:StatementEquityComponents

us-gaap:AmortizationOfDebtDiscountPremium

us-gaap:AmortizationOfFinancingCostsAndDiscounts

us-gaap:CapitalExpendituresIncurredButNotYetPaid

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:DeferredIncomeTaxesAndTaxCredits

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:FinanceLeasePrincipalPayments

us-gaap:IncreaseDecreaseInAccruedLiabilities

us-gaap:IncreaseDecreaseInContractWithCustomerAsset

us-gaap:IncreaseDecreaseInContractWithCustomerLiability

us-gaap:IncreaseDecreaseInOperatingLeaseLiability

us-gaap:IncreaseDecreaseInOtherNoncurrentAssets

us-gaap:IncreaseDecreaseInOtherReceivables

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:InterestExpenseDebtExcludingAmortization

us-gaap:InvestmentIncomeInterest

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsToAcquireAvailableForSaleSecuritiesDebt

us-gaap:PaymentsToAcquireIntangibleAssets

us-gaap:PaymentsToAcquireOtherInvestments

us-gaap:ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans
us-gaap:AwardType, us-gaap:StatementClassOfStock

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities

us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ProvisionForDoubtfulAccounts
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1
us-gaap:StatementEquityComponents
us-gaap:SharesPaidForTaxWithholdingForShareBasedCompensation
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardGross
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised
us-gaap:StatementEquityComponents

wk:AllowanceForTenantImprovements

wk:IncreaseDecreaseInOperatingLeaseLiability

wk:IncreaseDecreaseInOperatingRightofUseAsset
us-gaap:AwardType, us-gaap:StatementClassOfStock
wk:SharebasedCompensationArrangementBySharebasedPaymentAwardSharesIssuedInPeriodWeightedAveragePricePerShare
us-gaap:StatementClassOfStock
dei:EntityCommonStockSharesOutstanding

us-gaap:AccruedBonusesCurrent

us-gaap:AccruedEmployeeBenefitsCurrent

us-gaap:AccruedSalariesCurrent

us-gaap:AccruedSalesCommissionCurrent

us-gaap:AccruedVacationCurrent

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

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
us-gaap:BalanceSheetLocation
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
us-gaap:BalanceSheetLocation
us-gaap:FinancialInstrument
us-gaap:BalanceSheetLocation
us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue

us-gaap:AvailableForSaleSecuritiesDebtSecurities
us-gaap:BalanceSheetLocation
us-gaap:BalanceSheetLocation, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesDebtSecuritiesCurrent

us-gaap:CapitalizedContractCostNet

us-gaap:CapitalizedContractCostNetCurrent

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

us-gaap:ContractWithCustomerLiabilityNoncurrent
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:ConvertibleDebtFairValueDisclosures

us-gaap:ConvertibleDebtNoncurrent
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentUnamortizedDiscount

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months
us-gaap:FinancialInstrument

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
us-gaap:FinancialInstrument
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DeferredFinanceCostsNet

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredTaxAssetInterestCarryforward

us-gaap:DeferredTaxAssetsDeferredIncome

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsPropertyPlantAndEquipment

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals

us-gaap:DeferredTaxLiabilitiesFinancingArrangements

us-gaap:DeferredTaxLiabilitiesLeasingArrangements

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions

us-gaap:FinanceLeaseLiability

us-gaap:FinanceLeaseLiabilityCurrent

us-gaap:FinanceLeaseLiabilityNoncurrent

us-gaap:FinanceLeaseLiabilityPaymentsDue

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount

us-gaap:FinanceLeaseRightOfUseAssetAccumulatedAmortization

us-gaap:FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:InterestPayableCurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent
us-gaap:IncomeTaxAuthority
us-gaap:OperatingLossCarryforwards

us-gaap:OtherReceivablesNetCurrent

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization

us-gaap:RevenueRemainingPerformanceObligation

us-gaap:SelfInsuranceReserveCurrent
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
us-gaap:IncomeTaxAuthority
us-gaap:TaxCreditCarryforwardAmount
us-gaap:UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchased
us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary
us-gaap:UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchased
us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary
us-gaap:UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchased
us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary

wk:CashCashEquivalentsAndAvailableforsaleDebtSecurities

wk:CashCashEquivalentsAndAvailableforsaleDebtSecuritiesAmortizedCost

wk:ClientDepositsCurrent

wk:DebtSecuritiesAvailableForSaleFairValueMaturityAllocatedAndSingleMaturityDateAfterYearOneThroughTwo

wk:DebtSecuritiesAvailableForSaleFairValueMaturityAllocatedAndSingleMaturityDateAfterYearTwoThroughFive

wk:DeferredTaxAssetsLeaseLiability

wk:DeferredTaxAssetsOperatingLossCarryforwardsAndTaxCreditCarryforwards
us-gaap:SubsequentEventType
wk:LesseeOperatingLeaseAnnualExpense

Plots across concepts


IncomeStatement
Net Income Loss
Expenses
Other Nonoperating Income Expense
Balance Sheet
Intangible Assets Net Excluding Goodwill
Assets
Operating Lease Right Of Use Asset
Current Assets
Prepaid Expense And Other Assets Current
NonCurrent Assets
Intangible Assets Net Excluding Goodwill
Liabilities
Operating Lease Liability
Current Liabilities
Accounts Payable Current
Stockholders Equity
Retained Earnings Accumulated Deficit
CashFlow
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInOperatingActivities
Net Income Loss
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
Shares
Weighted Average Number Of Share Outstanding Basic And Diluted
OperatingLeaseLiability
Operating Lease Liability Current
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Due Year Four
AccountsReceivable
Allowance For Doubtful Accounts Receivable Current

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
 us-gaap:CommonStockValue us-gaap:StatementClassOfStock us-gaap:CommonClassA██▇▇▆▆▆▆▅▅▄▄▄▄▃▃▃▂▂▂▂▂▂▂▁▁▁0.0430.0420.0410.040.0390.0380.0380.0380.0370.0360.0340.0340.0330.0330.0320.0310.0310.030.030.030.030.0290.0290.0290.0280.0280.027NANANANANANANA
 us-gaap:CommonStockValue us-gaap:StatementClassOfStock us-gaap:CommonClassB▁▂▂▂▂▄▄▄▄▄▅▅▅▅▅▇▇▇▇▇▇██████0.0070.0080.0080.0080.0080.0090.0090.0090.0090.0090.010.010.010.010.010.0110.0110.0110.0110.0110.0110.0120.0120.0120.0120.0120.012NANANANANANANA
 us-gaap:SharesOutstanding us-gaap:StatementEquityComponents us-gaap:CommonStock██▇▆▆▅▅▅▄▃▂▂▂▁▁50.35449.92748.78948.13147.6247.04546.63946.42245.89945.12144.04443.843.06242.69342.369NANANA41.261NANANA40.948NANANA39.641NANANANANANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding █▁51.06586750.24412NANA48.17155247.545703NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic █▁51.06586750.24412NANA48.17155247.545703NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted NANA49.22246548.84013148.17155247.54570347.05820946.73166346.1666645.22927944.47267243.97342843.23465542.85875642.10876441.81513941.42969141.10861140.87277240.7629640.59390840.45166840.20436739.98030839.62784239.5937NA31.88979531.85030731.767513NANANANA
 us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted us-gaap:StatementClassOfStock us-gaap:CommonClassANANANA40.4002739.62298938.952305NA37.7858536.75886635.746572NA34.22111833.27898232.662318NA31.10099430.58501230.23939NA29.62479428.95022628.534236NA27.87041427.22699327.166753NA19.46284819.42090319.37273NANANANA
 us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted us-gaap:StatementClassOfStock us-gaap:CommonClassBNANANA8.4398618.5485638.593398NA8.9458139.4077949.482707NA9.752319.95567310.196438NA10.71414510.84467910.869221NA11.13816611.64368211.917432NA12.10989412.40084812.426947NA12.42694712.42940412.394783NANANANA
 us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities us-gaap:EmployeeStockNA0.059359NANANA0.107331NANANA0.092664NANANA0.107764NANANA0.0NANANANANANANANANANANANANANANANA
 us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities us-gaap:EmployeeStockOptionNA2.588566NANANA4.106122NANANA5.43022NANANA7.807606NANANA8.253195NANANANANANANANANANANANANANANANA
 us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities us-gaap:RestrictedStockNA2.237862NANANA3.335671NANANA2.700493NANANA0.0NANANA0.176665NANANA0.42336NANANA0.58435NANANA0.0NANANANA
us-gaap:EarningsPerShareBasic ▁█-0.19-0.15NANA-0.41-0.22NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:EarningsPerShareDiluted ▁█-0.19-0.15NANA-0.41-0.22NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:EarningsPerShareBasicAndDiluted NANA-0.16-0.22-0.41-0.22-0.35-0.34-0.18-0.17-0.17-0.25-0.5-0.22-0.34-0.34-0.25-0.14-0.18-0.32-0.28-0.3-0.26-0.37-0.28-0.19-0.38-0.42-0.33-0.14NANANANA
 us-gaap:EarningsPerShareBasicAndDiluted us-gaap:StatementClassOfStock us-gaap:CommonClassANANA-0.15000000000000002-0.22-0.41-0.22-0.3500000000000001-0.34-0.18-0.17-0.16999999999999993-0.25-0.5-0.22-0.3400000000000001-0.34-0.25-0.14-0.18000000000000005-0.32-0.28-0.3-0.2600000000000001-0.37-0.28-0.19-0.38-0.42-0.33-0.14NANANANA
 us-gaap:EarningsPerShareBasicAndDiluted us-gaap:StatementClassOfStock us-gaap:CommonClassBNANA-0.15000000000000002-0.22-0.41-0.22-0.3500000000000001-0.34-0.18-0.17-0.16999999999999993-0.25-0.5-0.22-0.3400000000000001-0.34-0.25-0.14-0.18000000000000005-0.32-0.28-0.3-0.2600000000000001-0.37-0.28-0.19-0.38-0.42-0.33-0.14NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
 COGS Ratio us-gaap:ProductOrService us-gaap:LicenseAndService█▇▇▆▅▅▅▄▄▃▃▃▂▂▂▁▁▁91.20584.93680.9775.8570.69668.36166.14863.02260.47256.12353.77951.30648.83746.4745.54943.21440.9839.54NANANANANANANANANANANANANANANANA
 COGS Ratio us-gaap:ProductOrService wk:ProfessionalServices▅█▄▃▄▇▅▃▄▄▂▂▂▄▁▁▁▄14.38219.28612.86412.24913.16417.4414.11711.15713.01213.8410.6569.56710.29313.4368.9578.8548.41112.364NANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
us-gaap:AllocatedShareBasedCompensationExpense ▆▆▆▆█▅▅▅▅▅▄▄▆▃▄▃▃▂▂▂▂▂▂▂▂▁▁▁▁▁11.05211.62310.3410.60114.8949.9369.8559.2238.5138.1937.5226.94910.4655.9056.2764.6644.3974.1393.6853.673.5023.393.1243.0822.622.1741.8461.4132.171.956NANANANA
us-gaap:ComprehensiveIncomeNetOfTax ▆▇▇▅▂▆▃▃▆▇▇▅▁▆▄▄▆▇▇▅▅▅▆▄▅▇▅▄▆█-9.491-7.373-7.81-10.688-19.375-10.582-16.305-15.989-8.24-7.411-7.71-10.952-21.709-9.674-14.365-14.162-10.25-5.868-7.475-12.903-11.478-12.071-10.307-14.567-11.053-7.378-12.602-13.333-10.454-4.475NANANANA
us-gaap:CostOfGoodsAndServicesSold █▇▇▆▆▇▇▆▅▅▃▂▂▃▂▂▁▁24.59123.67623.65121.88622.24422.39623.04821.75120.67719.53617.39415.65916.29616.51116.08915.65214.28614.218NANANANANANANANANANANANANANANANA
us-gaap:GeneralAndAdministrativeExpense ▆▆▅▅▇▅▅▄▄▄▄▄█▄▄▃▃▃▃▃▃▃▃▃▂▂▂▂▂▁▁▁▁▁17.38417.02113.12413.72219.63213.44814.75412.01711.22610.38311.04711.86421.65411.76812.2718.9598.9439.4217.8458.0157.8828.9538.5387.1536.2916.7345.7974.5725.1864.2283.8264.0232.9823.77
us-gaap:GrossProfit ██▇▆▆▆▆▅▅▅▄▄▄▄▄▃▃▄▃▃▃▃▃▂▂▂▂▂▂▂▁▁▁▁80.99680.54670.18366.21361.61663.40557.21752.42852.80750.42747.04145.21442.83443.39538.41736.41635.10537.68633.16631.97630.43431.44528.86926.49224.21525.49220.16819.3818.60320.66517.08115.2413.15315.028
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▆▇▆▆▂▆▃▃▆▇▇▅▁▆▄▄▆▇▇▅▅▅▆▄▅▇▅▄▆█▇▆▇▇-9.146-7.653-8.655-10.44-19.77-10.284-16.26-15.953-8.33-7.452-7.517-10.947-21.747-9.613-14.327-14.048-10.163-5.827-7.515-12.899-11.513-12.026-10.291-14.661-10.923-7.531-12.625-13.382-10.563-4.552-5.869-9.552-8.096-6.027
us-gaap:IncomeTaxExpenseBenefit █▃▁▆▅▇▆▆▅▆▇▆▆▅▅▆▆▆▅▅▆▆▅▅▆▅▆▅▅▅▅▅▅▅0.368-0.329-0.6420.067-0.0050.2890.0380.098-0.0080.0110.2040.0170.0210.005-0.0060.0250.0330.0090.001-0.0080.0120.0190.002-0.0310.106-0.0840.0320.00.00.00.00.00.00.0
us-gaap:IncomeTaxesPaidNet ▄▂▇▄█▆▃▄▂█▂▂▃▂▂▂▂▂▂▁▃▂▃▂▂▂0.0860.020.210.0840.2270.1590.030.080.0280.2330.0110.00.0540.0020.00.0020.0270.0140.025-0.0260.040.0080.0640.00.00.0NANANANANANANANA
us-gaap:InterestExpense ███████▅▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁3.5023.4853.4973.5723.5633.5543.5341.9590.4330.440.480.4480.4490.450.4510.4640.4750.4550.4550.4620.4680.490.5080.4940.5130.510.7630.70.3160.2650.0070.2550.0940.01
us-gaap:InterestExpenseDebt ███████▁3.2543.2373.2183.2013.1833.1673.1551.551NANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:InterestPaidNet ▂█▁█▂█▂▂▂▂▂▂▂▂▂▂▂▂0.2422.1880.052.3150.3822.320.3980.4080.4220.4640.430.4360.4350.4330.4330.4470.4480.298NANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss ▆▇▇▆▂▆▃▃▆▇▇▅▁▆▄▄▆▇▇▅▅▅▆▄▅▇▇▄▆█▇▆▇▇-9.514-7.324-8.013-10.507-19.765-10.573-16.298-16.051-8.322-7.463-7.721-10.964-21.768-9.618-14.321-14.073-10.196-5.836-7.516-12.891-11.525-12.045-10.293-14.63-11.029-7.447-5.909-13.382-10.563-4.552-5.869-9.552-8.096-6.027
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings▁█-9.514-7.324NA-10.507-19.765-10.573NA-16.051-8.322-7.463NA-10.964-21.768-9.618NANANANANANANANANANANANA-5.909NANANANANANANA
us-gaap:OperatingExpenses ██▇▇▇▆▆▆▅▅▅▅▆▄▄▄▄▃▃▄▃▃▃▃▂▂▂▂▂▁▁▁▁▁86.73984.6975.32373.16578.4172.55971.70267.90661.23457.75954.83155.91664.62452.90153.0950.19844.96943.6740.57444.71141.75743.55740.66640.82234.81632.44731.77131.99528.70524.95522.97724.59621.13221.079
us-gaap:OperatingIncomeLoss ▇██▇▃▆▄▄▆▇▇▅▁▆▄▄▆▇▇▅▅▅▅▄▅▇▅▅▆█▇▆▆▇-5.743-4.144-5.14-6.952-16.794-9.154-14.485-15.478-8.427-7.332-7.79-10.702-21.79-9.506-14.673-13.782-9.864-5.984-7.408-12.735-11.323-12.112-11.797-14.33-10.601-6.955-11.603-12.615-10.102-4.29-5.896-9.356-7.979-6.051
us-gaap:OtherNonoperatingIncomeExpense ▃▁▁▁▃█▂▄▃▃▆▃▄▄▆▃▃▄▄▄▄▄▄▃▄▃-0.156-0.384-0.468-0.387-0.0680.718-0.3050.024-0.111-0.1720.318-0.1380.1130.0120.336-0.177-0.151-0.017-0.027-0.013-0.0140.060.067-0.124-0.027-0.147NANANANANANANANA
us-gaap:ResearchAndDevelopmentExpense ██▇▇▆▆▆▆▆▆▅▅▅▅▅▄▄▄▃▃▃▃▃▃▂▂▂▂▂▂▁▁▁▁27.8326.63424.38623.95623.50822.99423.21622.89921.79522.01120.77319.98420.71820.12718.8717.52716.23915.53614.53314.34214.04714.51613.49612.76612.19612.00811.91111.17510.77210.2878.6698.838.5228.095
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ██▇▇▆▆▆▅▅▅▅▄▄▄▄▄▃▄▃▃▃▃▃▂▂▂▂▂▂▂▁▁▁▁105.587104.22293.83488.09983.8685.80180.26574.17973.48469.96364.43560.87359.1359.90654.50652.06849.39151.90446.37444.7143.01144.55139.88236.26833.96835.15430.12927.91926.51428.13223.56921.25619.02721.299
us-gaap:SellingAndMarketingExpense ██▇▇▇▇▆▆▅▄▄▄▄▄▄▄▃▃▃▄▃▃▃▄▃▂▂▃▂▁▁▂▁▁41.52541.03537.81335.48735.2736.11733.73232.9928.21325.36523.01124.06822.25221.00621.94923.71219.78718.71318.19622.35419.82820.08818.63220.90316.32913.70514.06316.24812.74710.4410.48211.7439.6289.214
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
us-gaap:Assets ███▇▇▇▇▇▃▃▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁738.882708.423707.006687.502654.727643.716646.396626.761279.982256.281231.111200.448181.694178.637157.715155.59154.193139.822143.143129.922122.696124.306143.895146.32151.33154.264164.551NANANA73.944NANANA
us-gaap:Liabilities ███▇▇▇▇▇▃▃▃▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁666.816638.667642.729608.004583.504573.944581.053556.627270.355252.425240.851212.735199.358187.855174.649170.062160.321144.806146.268129.494113.875107.745118.176114.166108.753103.632108.732NANANA80.731NANANA
us-gaap:LiabilitiesAndStockholdersEquity ███▇▇▇▇▇▃▃▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁738.882708.423707.006687.502654.727643.716646.396626.761279.982256.281231.111200.448181.694178.637157.715155.59154.193139.822143.143129.922122.696124.306143.895146.32151.33154.264164.551NANANA73.944NANANA
us-gaap:StockholdersEquity ▇▇▇█▇▇▇▇▃▃▂▁▁▂▁▁▂▂▂▂▃▃▄▅▅▆▆72.06669.75664.27779.49871.22369.77265.34370.1349.6273.856-9.74-12.287-17.664-9.218-16.934-14.472-6.128-4.984-3.1250.4288.82116.56125.71932.15442.57750.63255.819NANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
us-gaap:AssetsCurrent ███▇▇▇▇▇▃▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁658.962633.369633.085609.376577.671565.234571.232550.897205.353183.515177.231150.691133.673131.269115.292111.649110.60695.43498.04284.05776.97378.84997.87899.072103.593106.065116.541NANANA35.884NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▆▆▆██▇▇▇▂▂▂▂▂▂▂▂▂▂▂▁▁▁▂▂▂▂▂▁▁▁▁322.194331.173322.831426.132402.121393.434381.742389.12494.71378.73677.58471.84357.49565.25660.33362.71859.98652.20451.28142.84239.88543.22658.7569.09486.43289.893101.13120.27520.13517.25715.515NANANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents ▆▆▆██▇▇▇▂▁▁▁▁▁▁322.194331.173322.831426.132402.121393.434381.742389.12494.71378.73677.58471.84357.49565.25660.333NANANA51.281NANANA58.75NANANANANANANANANANANA
us-gaap:AccountsReceivableNetCurrent █▆█▆▅▅▇▅▅▆█▅▄▄▃▃▂▂▂▂▂▂▂▁▁▁▁65.90853.75468.92255.57141.4745.52260.22843.5947.20650.5665.10740.69739.08839.20228.824.28322.73319.5822.53522.35318.2616.4715.64712.13312.45211.91311.12NANANA13.885NANANA
us-gaap:PrepaidExpenseAndOtherAssetsCurrent ▇█▄▄▄▃▁12.04512.7589.0479.5879.3498.4526.508NANANA4.417NANANA6.444NANANANA4.9725.3874.0633.8753.2823.0642.9983.143NANANA0.891NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:ConstructionInProgressNANA0.093NANANA0.034NANANA0.015NANANA0.0NANANA0.0NANANA0.168NANANA1.52NANANA11.676NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:FurnitureAndFixturesNANA8.284NANANA8.494NANANA8.839NANANA8.428NANANA8.283NANANA7.484NANANA7.024NANANA4.47NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:LeaseholdImprovementsNANA7.755NANANA7.5NANANA7.678NANANA4.669NANANA4.682NANANA3.697NANANA1.105NANANA0.523NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:VehiclesNANA0.097NANANA0.097NANANA0.097NANANA0.097NANANA0.097NANANA0.148NANANA0.148NANANA0.097NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType wk:ComputersEquipmentAndSoftwareNANA7.995NANANA8.029NANANA6.602NANANA6.277NANANA5.954NANANANANANANANANANANANANANANA
us-gaap:IntangibleAssetsNetExcludingGoodwill ▆▇▇▇▇▇▇██▅▅▅▅▄▄▄▄▄▄▃▃▃▃▃▂▁▁1.5161.561.5831.6331.6221.6391.6511.7951.8321.3221.2661.2161.1961.1581.1181.0881.0561.0211.0120.9950.9780.9360.8960.8680.8120.6250.549NANANA0.167NANANA
us-gaap:DeferredTaxAssetsLiabilitiesNet NANA0.367NANANA0.109NANANANANANANA0.0NANANA0.0NANANA0.0NANANA0.0NANANANANANANA
us-gaap:OperatingLeaseRightOfUseAsset ▇▇▇▇██▇▇▇█▁15.55816.50115.84416.63117.53418.35815.35215.91716.5117.0570.0NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent █▇▆▆▆▆▅▆▃▃▁▂▂▂▁▃▂▂▂▃▂▁▁▁▁▁▁5.1274.613.7084.0594.123.5033.4393.921.9822.0420.5771.4141.0250.920.8611.5531.3931.4181.4991.5831.1260.7740.7110.6260.6990.7360.795NANANA0.631NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
us-gaap:AccountsPayableCurrent ▄▅▃▄▄▆█▆▅▄▆▆▅▇▃▂▁▂▁▆▆▅▆▅▄▃▃3.7044.7162.8433.6513.8135.5017.0574.8954.7683.1825.4615.0534.6885.9133.061.8611.1911.8670.8495.6374.9654.1565.1384.733.8752.6213.011NANANA3.993NANANA
us-gaap:AccruedLiabilitiesCurrent █▆▇▇▆▄▅▅▄▃▄▃▃▃▂▂▂▁▂▂▁▁▂▂▁▁▁76.68260.1168.25663.44456.38742.76249.9347.30242.14733.41636.35334.14630.97926.38320.21220.77117.28614.89820.69517.17714.69714.57820.39417.22813.8312.19516.765NANANA8.939NANANA
us-gaap:ContractWithCustomerLiabilityCurrent █▇▇▆▅▅▅▄▄▄▄▂▂▁▁224.952212.025208.99182.7171.378172.369173.617156.352156.234149.943148.545128.435118.49110.943104.684NANANANANANANANANANANANANANANANANANANA
us-gaap:LiabilitiesCurrent █▇▇▆▆▆▆▅▅▅▅▄▄▃▃▃▂▂▂▂▁▁▂▁▁▁▁307.09278.579281.794251.224232.973221.993231.932209.844204.434187.794191.581169.043155.359144.529129.341123.778112.55897.96299.88789.05979.60174.60884.08477.64570.2462.31566.73NANANA43.425NANANA
us-gaap:OperatingLeaseLiabilityCurrent ████▇▇▁4.5784.5584.5414.4854.3854.3413.064NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAccruedLiabilitiesCurrent ▅▄▅▄█▆█▅▃▄▄▃▃▂▂▂▁▁▂▁▁▂▂▂▁▃▃6.1036.0356.3085.559.1457.0578.9066.4685.1455.7275.8884.914.7124.1823.93.7743.2623.3743.8083.0133.1023.5283.8224.1913.2814.3725.031NANANA1.853NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
 us-gaap:LongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType wk:OnePointOneTwoFivePercentConvertibleSeniorNotesDue2026,us-gaap:ConvertibleDebt█▇▆▄▃▂▁294.04291.756289.49287.242285.011282.798280.601NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesNoncurrent ▁▂▂▂▂▂▂▁▁▁█▆▅▅▄▅▅▅▅▅▅▄▄▄▃▃▂1.3381.6831.681.7481.7781.5691.4981.3871.2840.9696.8915.4284.0563.9663.8964.0083.9854.0924.14.0644.0263.4913.3433.2083.0492.9622.069NANANA0.335NANANA
us-gaap:OperatingLeaseLiabilityNoncurrent ▆▇▇▇▇█▇▇██▁16.35517.5417.20918.22919.27420.42218.56419.27320.03820.8460.0NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANA5.214NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANA3.772NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NANA3.201NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA2.312NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA6.266NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
us-gaap:StockholdersEquity ▇▇▇█▇▇▇▇▃▃▂▁▁▂▁▁▂▂▂▂▃▃▄▅▅▆▆72.06669.75664.27779.49871.22369.77265.34370.1349.6273.856-9.74-12.287-17.664-9.218-16.934-14.472-6.128-4.984-3.1250.4288.82116.56125.71932.15442.57750.63255.819NANANANANANANA
 us-gaap:CommonStockValue us-gaap:StatementClassOfStock us-gaap:CommonClassA██▇▇▆▆▆▆▅▅▄▄▄▄▃▃▃▂▂▂▂▂▂▂▁▁▁0.0430.0420.0410.040.0390.0380.0380.0380.0370.0360.0340.0340.0330.0330.0320.0310.0310.030.030.030.030.0290.0290.0290.0280.0280.027NANANANANANANA
 us-gaap:CommonStockValue us-gaap:StatementClassOfStock us-gaap:CommonClassB▁▂▂▂▂▄▄▄▄▄▅▅▅▅▅▇▇▇▇▇▇██████0.0070.0080.0080.0080.0080.0090.0090.0090.0090.0090.010.010.010.010.010.0110.0110.0110.0110.0110.0110.0120.0120.0120.0120.0120.012NANANANANANANA
us-gaap:AdditionalPaidInCapital ██▇▇▇▆▆▆▄▄▃▃▃▃▂▂▂▂▂▂▁▁▁▁▁▁▁503.35491.549478.698474.969456.007435.181420.17408.656332.161318.151297.145286.888270.56257.297248.289236.386230.568221.463217.454213.532209.022205.284202.371198.499194.356191.358189.168NANANANANANANA
us-gaap:RetainedEarningsAccumulatedDeficit ▁▁▁▂▂▃▃▃▄▄▄▄▄▅▅▅▆▆▆▆▆▇▇▇███-431.538-422.024-414.7-396.006-385.499-365.734-355.161-338.863-322.812-314.49-307.027-299.306-288.342-266.574-265.337-251.016-236.943-226.747-220.911-213.395-200.504-188.979-176.934-166.641-152.011-140.982-133.535NANANANANANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▃▃▃▆█▄▄▄▃▂▂▂▂▁▂▂▃▄▄▄▄▃▃▄▃▃▂0.2040.1810.230.4870.6680.2780.2870.2940.2320.150.0980.0870.0750.0160.0720.1160.2050.2590.2910.250.2620.2150.2410.2550.1920.2160.147NANANA-0.142NANANA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue ▁█11.05211.623NA10.60114.8949.936NA9.2238.5138.193NA6.94910.4655.905NANANANANANANANANANANANA0.47NANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▇▇▇▆▆▅▅▅█▅▄▆▄▅▃▅▅▅▆▅▄▁▄▄▄▃▄▄▅▅12.7611.50313.5827.7997.1134.7491.9874.69718.7635.119-0.4197.582-2.5461.783-6.2285.1863.9822.589.9522.793-4.036-19.078-5.037-4.718-2.608-9.229-4.607-4.6264.1821.546NANANANA
us-gaap:NetCashProvidedByUsedInInvestingActivities ▆▇▁█▇█▇▄▇▇█▇▇█▇▇█▇▇███▇▇█▇▇▇█▇-22.374-3.989-110.2257.839-4.1652.801-10.915-54.465-8.093-16.5924.008-2.41-7.6570.427-1.509-3.229-0.493-1.242-1.338-0.1290.9464.326-5.094-13.375-0.354-0.954-0.679-2.8891.24-1.768NANANANA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▁▁▁▁▁▁▁█▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▃▁▁▁0.3250.812-7.2688.0275.6044.7551.347344.3065.19712.522.4519.0932.5272.8055.3560.6824.211-0.427-0.180.302-0.291-0.726-0.2970.758-0.48-1.08386.1027.629-2.5151.939NANANANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▃▃▁▃▃▃▃█▃▃▃▃▃▃-8.9798.342-103.30124.0118.68711.692-7.382294.41115.9771.1525.74114.348-7.7614.923NANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
us-gaap:AmortizationOfFinancingCosts ██████▇▁0.2530.2510.250.2480.2460.2440.2420.12NANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:DepreciationDepletionAndAmortization ▆▅▂▇▇▇█▅▄▃▃▇▃▃▄▂▃▃▃▄▄▄▅▅▆▇▆▇▂▁1.0971.0540.8631.161.1311.1421.2281.0580.9710.9030.91.1330.8760.8720.9340.8540.8670.8910.9040.9440.9750.9971.0561.0581.1271.1691.1251.1320.8520.768NANANANA
us-gaap:IncreaseDecreaseInAccountsPayable ▄▇▄▅▄▄▇▆▇▄▅▆▄█▇▆▅▆▁▆▆▅▅▆▇▅▃▇▆▃-1.1721.908-0.851-0.181-1.692-1.3821.9930.5161.206-1.562-0.30.616-1.2942.6771.1980.669-0.6781.017-4.310.2790.797-0.6960.0550.8571.2620.157-1.9011.7271.002-2.358NANANANA
us-gaap:IncreaseDecreaseInAccountsReceivable ▆▁▆▆▃▁▇▃▃▁█▄▄▃▄▄▄▃▄▄▄▄▄▄▄▄▄▄▃▄12.106-15.26512.83313.307-3.847-14.26516.364-3.579-3.133-14.81824.8311.6910.236-6.5424.2470.7573.228-2.6860.3674.0091.8440.8813.632-0.0470.5840.911-0.0181.794-3.854-0.524NANANANA
us-gaap:NetCashProvidedByUsedInOperatingActivities ▇▇▇▆▆▅▅▅█▅▄▆▄▅▃▅▅▅▆▅▄▁▄▄▄▃▄▄▅▅12.7611.50313.5827.7997.1134.7491.9874.69718.7635.119-0.4197.582-2.5461.783-6.2285.1863.9822.589.9522.793-4.036-19.078-5.037-4.718-2.608-9.229-4.607-4.6264.1821.546NANANANA
us-gaap:NetIncomeLoss ▆▇▇▆▂▆▃▃▆▇▇▅▁▆▄▄▆▇▇▅▅▅▆▄▅▇▇▄▆█▇▆▇▇-9.514-7.324-8.013-10.507-19.765-10.573-16.298-16.051-8.322-7.463-7.721-10.964-21.768-9.618-14.321-14.073-10.196-5.836-7.516-12.891-11.525-12.045-10.293-14.63-11.029-7.447-5.909-13.382-10.563-4.552-5.869-9.552-8.096-6.027
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings▁█-9.514-7.324NA-10.507-19.765-10.573NA-16.051-8.322-7.463NA-10.964-21.768-9.618NANANANANANANANANANANANA-5.909NANANANANANANA
us-gaap:ShareBasedCompensation ▆▆▆▆█▅▅▅▅▅▄▄▆▃▄▃▃▂▂▂▂▂▂▂▂▁▁▁▁▁11.05211.62310.3410.60114.8949.9369.8559.2238.5138.1937.5226.94910.4655.9056.2764.6644.3974.1393.6853.673.5023.393.1243.0822.622.1741.8461.4132.1691.957NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▆▇▁█▇█▇▄▇▇█▇▇█▇▇█▇▇███▇▇█▇▇▇█▇-22.374-3.989-110.2257.839-4.1652.801-10.915-54.465-8.093-16.5924.008-2.41-7.6570.427-1.509-3.229-0.493-1.242-1.338-0.1290.9464.326-5.094-13.375-0.354-0.954-0.679-2.8891.24-1.768NANANANA
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▃▃▁▂▂▂▁▂▂▄▂▂▁▁▁▃▁▁▃▁▂▂▁▂▁▃▂▆█▄0.8110.8490.110.3790.6960.6880.2440.6630.4541.7430.380.5230.210.0090.0540.9870.0260.1210.8010.0910.5970.4120.1840.6290.1590.8710.5222.7683.5261.75NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▁▁▁▁▁▁▁█▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▃▁▁▁0.3250.812-7.2688.0275.6044.7551.347344.3065.19712.522.4519.0932.5272.8055.3560.6824.211-0.427-0.180.302-0.291-0.726-0.2970.758-0.48-1.08386.1027.629-2.5151.939NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31

Common Stock Value

us-gaap:CommonStockValue us-gaap:StatementClassOfStock

us-gaap:CommonStockValue

us-gaap:CommonClassA


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value43000.042000.041000.040000.039000.038000.038000.038000.037000.036000.034000.034000.033000.033000.032000.031000.031000.030000.030000.030000.030000.029000.029000.029000.028000.028000.027000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonClassA0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonClassB


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value7000.08000.08000.08000.08000.09000.09000.09000.09000.09000.010000.010000.010000.010000.010000.011000.011000.011000.011000.011000.011000.012000.012000.012000.012000.012000.012000.0
Percentage of CommonStockValue16.319.019.520.020.523.723.723.724.325.029.429.430.330.331.235.535.536.736.736.736.741.441.441.442.942.944.4
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonClassB0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Shares Outstanding

us-gaap:SharesOutstanding us-gaap:StatementEquityComponents

us-gaap:SharesOutstanding

us-gaap:CommonStock


Shares
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-31
Value504948484747464645454443434242414039
Percentage of SharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-06-302020-03-31
Value51504847
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding us-gaap:StatementClassOfStock

us-gaap:CommonClassA


Weighted
Period End2021-06-302021-03-312020-06-302020-03-31
Value43423938
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding84.884.182.381.9

us-gaap:CommonClassB


Weighted
Period End2021-06-302021-03-312020-06-302020-03-31
Value7.7553797.9798328.5485638.593398
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding15.215.917.718.1

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-06-302020-03-31
Value51504847
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic us-gaap:StatementClassOfStock

us-gaap:CommonClassA


Weighted
Period End2021-06-302021-03-312020-06-302020-03-31
Value43423938
Percentage of WeightedAverageNumberOfSharesOutstandingBasic84.884.182.381.9

us-gaap:CommonClassB


Weighted
Period End2021-06-302021-03-312020-06-302020-03-31
Value7.7553797.9798328.5485638.593398
Percentage of WeightedAverageNumberOfSharesOutstandingBasic15.215.917.718.1

Weighted Average Number Of Share Outstanding Basic And Diluted

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted


Weighted
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-31
Value494848474746464544434342424141414040404040393939313131
Percentage of WeightedAverageNumberOfShareOutstandingBasicAndDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted us-gaap:StatementClassOfStock

us-gaap:CommonClassA


Weighted
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-31
Value403938373635343332313030292828272727191919
Percentage of WeightedAverageNumberOfShareOutstandingBasicAndDiluted82.782.381.980.979.679.077.877.076.274.473.873.672.771.370.569.768.768.661.061.061.0

us-gaap:CommonClassB


Weighted
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-31
Value8.4398618.5485638.5933988.9458139.4077949.4827079.752319.95567310101010111111121212121212
Percentage of WeightedAverageNumberOfShareOutstandingBasicAndDiluted17.317.718.119.120.421.022.223.023.825.626.226.427.328.729.530.331.331.439.039.039.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EmployeeStock


Antidilutive
Period End2021-03-312020-03-312019-03-312018-03-312017-03-31
Value59359.0107330.092664.0107760.00
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.00.0

us-gaap:EmployeeStockOption


Antidilutive
Period End2021-03-312020-03-312019-03-312018-03-312017-03-31
Value2588600.04106100.05430200.07807600.08253200.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount4360.93825.75860.17245.10.0

us-gaap:RestrictedStock


Antidilutive
Period End2021-03-312020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-31
Value2237900.03335700.02700500.00176660.0423360.0584350.00
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount3770.03107.82914.30.00.00.00.00.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-06-302020-03-31
Value-0.19-0.15-0.41-0.22
Percentage of EarningsPerShareBasic100.0100.0100.0100.0

us-gaap:EarningsPerShareBasic us-gaap:StatementClassOfStock

us-gaap:CommonClassA


Earnings
Period End2021-06-302021-03-312020-06-302020-03-31
Value-0.19-0.15-0.41-0.22
Percentage of EarningsPerShareBasic100.0100.0100.0100.0

us-gaap:CommonClassB


Earnings
Period End2021-06-302021-03-312020-06-302020-03-31
Value-0.19-0.15-0.41-0.22
Percentage of EarningsPerShareBasic100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-06-302020-03-31
Value-0.19-0.15-0.41-0.22
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0

us-gaap:EarningsPerShareDiluted us-gaap:StatementClassOfStock

us-gaap:CommonClassA


Earnings
Period End2021-06-302021-03-312020-06-302020-03-31
Value-0.19-0.15-0.41-0.22
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0

us-gaap:CommonClassB


Earnings
Period End2021-06-302021-03-312020-06-302020-03-31
Value-0.19-0.15-0.41-0.22
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0

Earnings Per Share Basic And Diluted

us-gaap:EarningsPerShareBasicAndDiluted

us-gaap:EarningsPerShareBasicAndDiluted


Earnings
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-0.16-0.22-0.41-0.22-0.35-0.34-0.18-0.17-0.17-0.25-0.5-0.22-0.34-0.34-0.25-0.14-0.18-0.32-0.28-0.3-0.26-0.37-0.28-0.19-0.38-0.42-0.33-0.14
Percentage of EarningsPerShareBasicAndDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EarningsPerShareBasicAndDiluted us-gaap:StatementClassOfStock

us-gaap:CommonClassA


Earnings
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-0.15-0.22-0.41-0.22-0.35-0.34-0.18-0.17-0.17-0.25-0.5-0.22-0.34-0.34-0.25-0.14-0.18-0.32-0.28-0.3-0.26-0.37-0.28-0.19-0.38-0.42-0.33-0.14
Percentage of EarningsPerShareBasicAndDiluted93.8100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonClassB


Earnings
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-0.15-0.22-0.41-0.22-0.35-0.34-0.18-0.17-0.17-0.25-0.5-0.22-0.34-0.34-0.25-0.14-0.18-0.32-0.28-0.3-0.26-0.37-0.28-0.19-0.38-0.42-0.33-0.14
Percentage of EarningsPerShareBasicAndDiluted93.8100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:AllocatedShareBasedCompensationExpense


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value11111010149.9369.8559.2238.5138.1937.5226.949105.9056.2764.6644.3974.1393.6853.673.5023.393.1243.0822.622.1741.8461.4132.171.956
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.511.211.012.017.811.612.312.411.611.711.711.417.79.911.59.08.98.07.98.28.17.67.88.57.76.26.15.18.27.0

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:IncomeStatementLocation

us-gaap:GeneralAndAdministrativeExpense


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value4.7924.784.5475.0499.1094.7614.4313.9133.83.5634.0443.6147.1563.454.4242.9422.9532.7472.2792.2872.2262.1111.8191.8531.6431.3221.0080.6491.450.441
Percentage of AllocatedShareBasedCompensationExpense43.441.144.047.661.247.945.042.444.643.553.852.068.458.470.563.167.266.461.862.363.662.358.260.162.760.854.645.966.822.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.54.64.85.710.95.55.55.35.25.16.35.912.15.88.15.76.05.34.95.15.24.74.65.14.83.83.32.35.51.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:GeneralAndAdministrativeExpense0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ResearchAndDevelopmentExpense


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value2.4172.4312.312.1672.041.5831.992.2651.8511.91.7021.6241.4951.0210.6580.6010.4720.4930.5780.5940.6090.5840.6350.5860.3690.3340.3140.3410.3370.765
Percentage of AllocatedShareBasedCompensationExpense21.920.922.320.413.715.920.224.621.723.222.623.414.317.310.512.910.711.915.716.217.417.220.319.014.115.417.024.115.539.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.32.32.52.52.41.82.53.12.52.72.62.72.51.71.21.21.00.91.21.31.41.31.61.61.11.01.01.21.32.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ResearchAndDevelopmentExpense0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:SellingAndMarketingExpense


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value2.8373.5492.6952.6872.9442.7362.5932.2032.0321.9641.4661.3971.441.1130.8420.7880.6940.6590.6040.5670.4490.4550.4840.4610.4320.350.3520.2880.2510.35
Percentage of AllocatedShareBasedCompensationExpense25.730.526.125.319.827.526.323.923.924.019.520.113.818.813.416.915.815.916.415.412.813.415.515.016.516.119.120.411.617.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.73.42.93.03.53.23.23.02.82.82.32.32.41.91.51.51.41.31.31.31.01.01.21.31.31.01.21.00.91.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:SellingAndMarketingExpense0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:ProductOrService, us-gaap:IncomeStatementLocation

us-gaap:LicenseAndService, us-gaap:CostOfSales


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.5970.4960.4160.4260.4360.4310.4120.3860.3990.3570.140.1610.2280.1710.2160.204
Percentage of AllocatedShareBasedCompensationExpense5.44.34.04.02.94.34.24.24.74.41.92.32.22.93.44.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.60.50.40.50.50.50.50.50.50.50.20.30.40.30.40.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:LicenseAndService us-gaap:CostOfSales0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

wk:ProfessionalServices, us-gaap:CostOfSales


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.4090.3670.3720.2720.3650.4250.4290.4560.4310.4090.170.1530.1460.150.1360.129
Percentage of AllocatedShareBasedCompensationExpense3.73.23.62.62.54.34.44.95.15.02.32.21.42.52.22.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.40.40.40.30.40.50.50.60.60.60.30.30.20.30.20.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wk:ProfessionalServices us-gaap:CostOfSales0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-9491000.0-7373000.0-7810000.0-10688000.0-19375000.0-10582000.0-16305000.0-15989000.0-8240000.0-7411000.0-7710000.0-10952000.0-21709000.0-9674000.0-14365000.0-14162000.0-10250000.0-5868000.0-7475000.0-12903000.0-11478000.0-12071000.0-10307000.0-14567000.0-11053000.0-7378000.0-12602000.0-13333000.0-10454000.0-4475000.0
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-9.0-7.1-8.3-12.1-23.1-12.3-20.3-21.6-11.2-10.6-12.0-18.0-36.7-16.1-26.4-27.2-20.8-11.3-16.1-28.9-26.7-27.1-25.8-40.2-32.5-21.0-41.8-47.8-39.4-15.9

Cost Of Goods And Services Sold

us-gaap:CostOfGoodsAndServicesSold

us-gaap:CostOfGoodsAndServicesSold


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value242323212222232120191715161616151414
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax23.322.725.224.826.526.128.729.328.127.927.025.727.627.629.530.128.927.4

us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService

us-gaap:LicenseAndService


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1413131212121110109.8098.6378.1398.6378.8028.7798.4727.7587.637
Percentage of CostOfGoodsAndServicesSold57.355.856.054.954.454.351.850.249.350.249.752.053.053.354.654.154.353.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.412.714.113.614.414.214.914.713.914.013.413.414.614.716.116.315.714.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:LicenseAndService15.515.516.415.817.117.818.117.316.917.516.115.917.718.919.319.618.919.3

wk:ProfessionalServices


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1010109.87310101110109.7278.7577.527.6597.7097.317.186.5286.581
Percentage of CostOfGoodsAndServicesSold42.744.244.045.145.645.748.249.850.749.850.348.047.046.745.445.945.746.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.910.011.111.212.111.913.814.614.313.913.612.413.012.913.413.813.212.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wk:ProfessionalServices73.054.380.980.677.158.778.697.080.570.382.278.674.457.481.681.177.653.2

General And Administrative Expense

us-gaap:GeneralAndAdministrativeExpense

us-gaap:GeneralAndAdministrativeExpense


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value1717131319131412111011112111128.9598.9439.4217.8458.0157.8828.9538.5387.1536.2916.7345.7974.5725.1864.2283.8264.0232.9823.77
Percentage of GeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax16.516.314.015.623.415.718.416.215.314.817.119.536.619.622.517.218.118.216.917.918.320.121.419.718.519.219.216.419.615.016.218.915.717.7

Gross Profit

us-gaap:GrossProfit

us-gaap:GrossProfit


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value80807066616357525250474542433836353733313031282624252019182017151315
Percentage of GrossProfit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax76.777.374.875.273.573.971.370.771.972.173.074.372.472.470.569.971.172.671.571.570.870.672.473.071.372.566.969.470.273.572.571.769.170.6

Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-9146000.0-7653000.0-8655000.0-10440000.0-19770000.0-10284000.0-16260000.0-15953000.0-8330000.0-7452000.0-7517000.0-10947000.0-21747000.0-9613000.0-14327000.0-14048000.0-10163000.0-5827000.0-7515000.0-12899000.0-11513000.0-12026000.0-10291000.0-14661000.0-10923000.0-7531000.0-12625000.0-13382000.0-10563000.0-4552000.0-5869000.0-9552000.0-8096000.0-6027000.0
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-8.7-7.3-9.2-11.9-23.6-12.0-20.3-21.5-11.3-10.7-11.7-18.0-36.8-16.0-26.3-27.0-20.6-11.2-16.2-28.9-26.8-27.0-25.8-40.4-32.2-21.4-41.9-47.9-39.8-16.2-24.9-44.9-42.6-28.3

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value368000.0-329000.0-642000.067000.0-5000.0289000.038000.098000.0-8000.011000.0204000.017000.021000.05000.0-6000.025000.033000.09000.01000.0-8000.012000.019000.02000.0-31000.0106000.0-84000.032000.00000000
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.3-0.3-0.70.1-0.00.30.00.1-0.00.00.30.00.00.0-0.00.00.10.00.0-0.00.00.00.0-0.10.3-0.20.10.00.00.00.00.00.00.0

Income Taxes Paid Net

us-gaap:IncomeTaxesPaidNet

us-gaap:IncomeTaxesPaidNet


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value86000.020000.0210000.084000.0227000.0159000.030000.080000.028000.0233000.011000.0054000.02000.002000.027000.014000.025000.0-26000.040000.08000.064000.0000
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.00.20.10.30.20.00.10.00.30.00.00.10.00.00.00.10.00.1-0.10.10.00.20.00.00.0

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value3.5023.4853.4973.5723.5633.5543.5341.9590.4330.440.480.4480.4490.450.4510.4640.4750.4550.4550.4620.4680.490.5080.4940.5130.510.7630.70.3160.2650.0070.2550.0940.01
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.33.33.74.14.24.14.42.60.60.60.70.70.80.80.80.91.00.91.01.01.11.11.31.41.51.52.52.51.20.90.01.20.50.0

us-gaap:InterestExpense us-gaap:Restatement

srt:RestatementAdjustment


Interest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-0.072-0.074-0.076-0.078-0.079-0.09-0.092
Percentage of InterestExpense-2.0-2.1-2.1-2.2-4.0-20.8-20.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.1-0.1-0.1-0.1-0.1-0.1-0.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:RestatementAdjustment0.00.00.00.00.00.00.0

Interest Expense Debt

us-gaap:InterestExpenseDebt

us-gaap:InterestExpenseDebt


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value3.2543.2373.2183.2013.1833.1673.1551.551
Percentage of InterestExpenseDebt100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.13.13.43.63.83.73.92.1

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value242000.02188000.050000.02315000.0382000.02320000.0398000.0408000.0422000.0464000.0430000.0436000.0435000.0433000.0433000.0447000.0448000.0298000.0
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.22.10.12.60.52.70.50.60.60.70.70.70.70.70.80.90.90.6

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-12-102014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-9514000.0-7324000.0-8013000.0-10507000.0-19765000.0-10573000.0-16298000.0-16051000.0-8322000.0-7463000.0-7721000.0-10964000.0-21768000.0-9618000.0-14321000.0-14073000.0-10196000.0-5836000.0-7516000.0-12891000.0-11525000.0-12045000.0-10293000.0-14630000.0-11029000.0-7447000.0-5909000.0-6749000.0-13382000.0-10563000.0-4552000.0-5869000.0-9552000.0-8096000.0-6027000.0
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-9.0-7.0-8.5-11.9-23.6-12.3-20.3-21.6-11.3-10.7-12.0-18.0-36.8-16.1-26.3-27.0-20.6-11.2-16.2-28.8-26.8-27.0-25.8-40.3-32.5-21.20.00.0-47.9-39.8-16.2-24.9-44.9-42.6-28.3

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312014-12-31
Value-9514000.0-7324000.0-10507000.0-19765000.0-10573000.0-16051000.0-8322000.0-7463000.0-10964000.0-21768000.0-9618000.0-5909000.0
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-9.0-7.0-11.9-23.6-12.3-21.6-11.3-10.7-18.0-36.8-16.10.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.0

Net Income Loss Available To Common Stockholders Basic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic us-gaap:StatementClassOfStock

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:CommonClassA


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-8069000.0-6161000.0-6349000.0-8691000.0-16257000.0-8662000.0-13239000.0-12978000.0-6626000.0-5898000.0-6117000.0-8532000.0-16755000.0-7330000.0
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-7.6-5.9-6.8-9.9-19.4-10.1-16.5-17.5-9.0-8.4-9.5-14.0-28.3-12.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CommonClassA0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonClassB


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-1445000.0-1163000.0-1204000.0-1816000.0-3508000.0-1911000.0-3059000.0-3073000.0-1696000.0-1565000.0-1604000.0-2432000.0-5013000.0-2288000.0
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic17.918.919.020.921.622.123.123.725.626.526.228.529.931.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.4-1.1-1.3-2.1-4.2-2.2-3.8-4.1-2.3-2.2-2.5-4.0-8.5-3.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CommonClassB0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Income Loss Available To Common Stockholders Diluted

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted us-gaap:StatementClassOfStock

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

us-gaap:CommonClassA


Net
Period End2021-06-302021-03-312020-06-302020-03-31
Value-8069000.0-6161000.0-16132000.0-8535000.0
Percentage of NetIncomeLossAvailableToCommonStockholdersDiluted100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-7.6-5.9-19.2-9.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CommonClassA0.00.00.00.0

us-gaap:CommonClassB


Net
Period End2021-06-302021-03-312020-06-302020-03-31
Value-1445000.0-1163000.0-3480000.0-1883000.0
Percentage of NetIncomeLossAvailableToCommonStockholdersDiluted17.918.921.622.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.4-1.1-4.1-2.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CommonClassB0.00.00.00.0

Operating Expenses

us-gaap:OperatingExpenses

us-gaap:OperatingExpenses


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value86847573787271676157545564525350444340444143404034323131282422242121
Percentage of OperatingExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax82.181.380.383.093.584.689.391.583.382.685.191.9109.388.397.496.491.084.187.5100.097.197.8102.0112.6102.592.3105.4114.6108.388.797.5115.7111.199.0

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-5743000.0-4144000.0-5140000.0-6952000.0-16794000.0-9154000.0-14485000.0-15478000.0-8427000.0-7332000.0-7790000.0-10702000.0-21790000.0-9506000.0-14673000.0-13782000.0-9864000.0-5984000.0-7408000.0-12735000.0-11323000.0-12112000.0-11797000.0-14330000.0-10601000.0-6955000.0-11603000.0-12615000.0-10102000.0-4290000.0-5896000.0-9356000.0-7979000.0-6051000.0
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-5.4-4.0-5.5-7.9-20.0-10.7-18.0-20.9-11.5-10.5-12.1-17.6-36.9-15.9-26.9-26.5-20.0-11.5-16.0-28.5-26.3-27.2-29.6-39.5-31.2-19.8-38.5-45.2-38.1-15.2-25.0-44.0-41.9-28.4

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value-156000.0-384000.0-468000.0-387000.0-68000.0718000.0-305000.024000.0-111000.0-172000.0318000.0-138000.0113000.012000.0336000.0-177000.0-151000.0-17000.0-27000.0-13000.0-14000.060000.067000.0-124000.0-27000.0-147000.0
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.1-0.4-0.5-0.4-0.10.8-0.40.0-0.2-0.20.5-0.20.20.00.6-0.3-0.3-0.0-0.1-0.0-0.00.10.2-0.3-0.1-0.4

Research And Development Expense

us-gaap:ResearchAndDevelopmentExpense

us-gaap:ResearchAndDevelopmentExpense


Research
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value2726242323222322212220192020181716151414141413121212111110108.6698.838.5228.095
Percentage of ResearchAndDevelopmentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax26.425.626.027.228.026.828.930.929.731.532.232.835.033.634.633.732.929.931.332.132.732.633.835.235.934.239.540.040.636.636.841.544.838.0

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value1051049388838580747369646059595452495146444344393633353027262823211921
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:EquitySecuritiesByIndustry

us-gaap:CommercialAndIndustrialSector


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value11109.8659.3659.1799.2249.0878.198.2127.7927.3176.896.5116.747
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.610.310.510.610.910.811.311.011.211.111.411.311.011.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.610.310.510.610.910.811.311.011.211.111.411.311.011.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CommercialAndIndustrialSector100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialServicesSector


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value10.0109.178.9598.4548.5017.6897.4766.9456.6786.196.0445.7876.049
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.59.99.810.210.19.99.610.19.59.59.69.99.810.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.59.99.810.210.19.99.610.19.59.59.69.99.810.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:FinancialServicesSector100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:HealthcareSector


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value11109.9548.7728.3258.427.6376.9496.936.5845.8865.3475.1045.35
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.710.410.610.09.99.89.59.49.49.49.18.88.68.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.710.410.610.09.99.89.59.49.49.49.18.88.68.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:HealthcareSector100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RealEstateSector


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value4.3594.764.0833.7693.6894.3524.0673.827
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.14.64.44.34.45.15.15.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.14.64.44.34.45.15.15.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RealEstateSector100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TechnologySector


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value141312111111109.734109.1628.227.6987.5847.27
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.113.413.513.613.312.913.113.113.613.112.812.612.812.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.113.413.513.613.312.913.113.113.613.112.812.612.812.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:TechnologySector100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wk:ConsumerDiscretionarySector


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1010109.7489.3129.4379.0268.3248.3297.9797.4077.2486.8826.893
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.310.510.911.111.111.011.211.211.311.411.511.911.611.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.310.510.911.111.111.011.211.211.311.411.511.911.611.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wk:ConsumerDiscretionarySector100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wk:DiversifiedFinancialsSector


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value12121110109.8679.5128.578.2637.4387.1376.8476.0536.29
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.611.812.212.112.811.511.911.611.210.611.111.210.210.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.611.812.212.112.811.511.911.611.210.611.111.210.210.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wk:DiversifiedFinancialsSector100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wk:EnergySector


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value6.5296.8315.8255.8125.5576.4245.9465.5155.4465.6445.3144.8054.7094.895
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.26.66.26.66.67.57.47.47.48.18.27.98.08.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.26.66.26.66.67.57.47.47.48.18.27.98.08.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wk:EnergySector100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wk:InsuranceSector


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value7.4867.0736.65.8285.4045.9415.0974.49
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.16.87.06.66.46.96.46.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.16.87.06.66.46.96.46.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wk:InsuranceSector100.0100.0100.0100.0100.0100.0100.0100.0

wk:MaterialsSector


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value4.0734.3973.9063.8243.3713.543.2612.926
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.94.24.24.34.04.14.13.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.94.24.24.34.04.14.13.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wk:MaterialsSector100.0100.0100.0100.0100.0100.0100.0100.0

wk:OtherSector


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value6.9676.9336.0095.83621222019191816151616
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.66.76.46.625.226.626.026.226.326.726.326.327.927.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.66.76.46.625.226.626.026.226.326.726.326.327.927.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wk:OtherSector100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wk:UtilitySector


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-30
Value5.6125.1433.5383.3843.7853.431
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.34.94.04.04.44.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.34.94.04.04.44.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wk:UtilitySector100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService

us-gaap:LicenseAndService


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value918480757068666360565351484645434039
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax86.481.586.386.184.379.782.485.082.380.283.584.382.677.683.683.083.076.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax86.481.586.386.184.379.782.485.082.380.283.584.382.677.683.683.083.076.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:LicenseAndService100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wk:OtherServices


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value4.3134.84.3754.4514.8514.0084.0823.393.492.433.1743.2553.3773.584
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.14.64.75.15.84.75.14.64.73.54.95.35.76.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.14.64.75.15.84.75.14.64.73.54.95.35.76.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wk:OtherServices100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wk:ProfessionalServices


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value14191212131714111313109.56710138.9578.8548.41112
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.618.513.713.915.720.317.615.017.719.816.515.717.422.416.417.017.023.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.618.513.713.915.720.317.615.017.719.816.515.717.422.416.417.017.023.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wk:ProfessionalServices100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wk:XBRLProfessionalServices


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value10148.4897.7988.31313107.7679.522117.4826.3126.9169.852
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.513.99.08.99.915.712.510.513.016.311.610.411.716.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.513.99.08.99.915.712.510.513.016.311.610.411.716.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wk:XBRLProfessionalServices100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Selling And Marketing Expense

us-gaap:SellingAndMarketingExpense

us-gaap:SellingAndMarketingExpense


Selling
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value41413735353633322825232422212123191818221920182016131416121010119.6289.214
Percentage of SellingAndMarketingExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax39.339.440.340.342.142.142.044.538.436.335.739.537.635.140.345.540.136.139.250.046.145.146.757.648.139.046.758.248.137.144.555.250.643.3

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value73870870768765464364662627925623120018117815715515413914312912212414314615115416473
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value66663864260858357358155627025224021219918717417016014414612911310711811410810310880
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets90.290.290.988.489.189.289.988.896.698.5104.2106.1109.7105.2110.7109.3104.0103.6102.299.792.886.782.178.071.967.266.1109.2

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value73870870768765464364662627925623120018117815715515413914312912212414314615115416473
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value72696479716965709.6273.856-9.74-12.287-17.664-9.218-16.934-14.472-6.128-4.984-3.1250.4288.821162532425055
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.89.89.111.610.910.810.111.23.41.5-4.2-6.1-9.7-5.2-10.7-9.3-4.0-3.6-2.20.37.213.317.922.028.132.833.9

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value0.1890.109-0.067-0.067-0.007-0.0390.0-0.196-0.04
Percentage of StockholdersEquity0.30.20.70.40.2-0.20.00.00.0
Percentage of Assets0.00.0-0.0-0.0-0.0-0.00.0-0.30.0
Percentage of Assets us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value0.2040.1810.230.4870.6680.2780.2870.2940.2320.150.0980.0870.0750.0160.0720.2910.2410.147-0.142-0.042
Percentage of StockholdersEquity0.30.30.40.60.90.40.40.42.43.9-1.0-0.7-0.4-0.2-0.4-9.30.90.30.00.0
Percentage of Assets0.00.00.00.10.10.00.00.00.10.10.00.00.00.00.00.20.20.1-0.20.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value0.0410.1780.1650.1390.2980.280.1470.054-0.002
Percentage of StockholdersEquity0.10.3-1.7-0.8-9.51.10.30.00.0
Percentage of Assets0.00.00.10.10.20.20.10.10.0
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-31
Value503491478474456435420408332318297286270257248217202189
Percentage of StockholdersEquity698.5704.7744.7597.5640.3623.7643.0582.73450.38250.8-3050.8-2334.9-1531.7-2791.2-1466.2-6958.5786.9338.9
Percentage of Assets68.169.467.769.169.667.665.065.2118.6124.1128.6143.1148.9144.0157.4151.9140.6115.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-31
Value0.050.050.0490.0480.0470.0470.0470.0470.0460.0450.0440.0440.0430.0430.0420.0410.0410.039
Percentage of StockholdersEquity0.10.10.10.10.10.10.10.10.51.2-0.5-0.4-0.2-0.5-0.2-1.30.20.1
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-31
Value-431.538-422.024-414.7-396.006-385.499-365.734-355.161-338.863-322.812-314.49-307.027-299.306-288.342-266.574-265.337-220.911-176.934-133.535
Percentage of StockholdersEquity-598.8-605.0-645.2-498.1-541.3-524.2-543.5-483.2-3353.2-8155.93152.22436.01632.42891.91566.97069.2-688.0-239.2
Percentage of Assets-58.4-59.6-58.7-57.6-58.9-56.8-54.9-54.1-115.3-122.7-132.8-149.3-158.7-149.2-168.2-154.3-123.0-81.2
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value6586336336095775655715502051831771501331311151111109598847678979910310611635
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets89.289.489.588.688.287.888.487.973.371.676.775.273.673.573.171.871.768.368.564.762.763.468.067.768.568.870.848.5

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-31
Value322331322426402393381389947877715765606259525142394358698689101202017152410
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets43.646.745.762.061.461.159.162.133.830.733.635.831.636.538.340.338.937.335.833.032.534.840.847.257.158.361.50.00.00.021.00.00.0

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:BalanceSheetLocation

us-gaap:CashAndCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value2802872803963783673603687152
Percentage of CashAndCashEquivalentsAtCarryingValue87.086.886.993.094.193.594.494.776.067.1
Percentage of Assets37.940.639.757.757.857.255.858.825.722.5
Percentage of Assets us-gaap:CashAndCashEquivalents0.00.00.00.00.00.00.00.00.00.0

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:BalanceSheetLocation, us-gaap:CashAndCashEquivalents

us-gaap:CashAndCashEquivalents, us-gaap:MoneyMarketFunds


Cash
Period End2020-12-312019-12-312019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312013-12-31
Value2803605552483654495253454337343753619713
Percentage of CashAndCashEquivalentsAtCarryingValue86.994.470.167.168.063.584.082.083.089.986.684.887.486.986.690.888.696.089.7
Percentage of Assets39.755.821.522.524.420.130.731.433.435.032.330.428.828.330.137.141.859.018.8
Percentage of Assets us-gaap:CashAndCashEquivalents us-gaap:MoneyMarketFunds0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:CashAndCashEquivalents

us-gaap:MoneyMarketFunds


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312013-12-31
Value280287265396378367360368715552483654495253454337343753619713
Percentage of CashAndCashEquivalentsAtCarryingValue87.086.882.393.094.193.594.494.776.070.167.168.063.584.082.083.089.986.684.887.486.986.690.888.696.089.7
Percentage of Assets37.940.637.657.757.857.255.858.825.721.522.524.420.130.731.433.435.032.330.428.828.330.137.141.859.018.8
Percentage of Assets us-gaap:MoneyMarketFunds0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value322331322426402393381389947877715765605158
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets43.646.745.762.061.461.159.162.133.830.733.635.831.636.538.335.840.8

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value65536855414560434750654039392824221922221816151212111113
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.97.69.78.16.37.19.37.016.919.728.220.321.521.918.315.614.714.015.717.214.913.210.98.38.27.76.818.8

Prepaid Expense And Other Assets Current

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PrepaidExpenseAndOtherAssetsCurrent


Prepaid
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value12129.0479.5879.3498.4526.5084.4176.4444.9725.3874.0633.8753.2823.0642.9983.1430.891
Percentage of PrepaidExpenseAndOtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.61.81.31.41.41.31.01.94.13.84.43.32.72.22.01.91.91.2

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:ConstructionInProgress


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value0.0930.0340.0150.00.00.1681.5211
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.00.00.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.10.915.8
Percentage of Assets us-gaap:ConstructionInProgress0.00.00.00.00.00.00.00.0

us-gaap:FurnitureAndFixtures


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value8.2848.4948.8398.4288.2837.4847.0244.47
Percentage of PropertyPlantAndEquipmentGross8907.524982.458926.70.00.04454.8462.138.3
Percentage of Assets1.21.33.85.35.85.24.36.0
Percentage of Assets us-gaap:FurnitureAndFixtures0.00.00.00.00.00.00.00.0

us-gaap:LeaseholdImprovements


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value7.7557.57.6784.6694.6823.6971.1050.523
Percentage of PropertyPlantAndEquipmentGross8338.722058.851186.70.00.02200.672.74.5
Percentage of Assets1.11.23.33.03.32.60.70.7
Percentage of Assets us-gaap:LeaseholdImprovements0.00.00.00.00.00.00.00.0

us-gaap:Vehicles


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value0.0970.0970.0970.0970.0970.1480.1480.097
Percentage of PropertyPlantAndEquipmentGross104.3285.3646.70.00.088.19.70.8
Percentage of Assets0.00.00.00.10.10.10.10.1
Percentage of Assets us-gaap:Vehicles0.00.00.00.00.00.00.00.0

wk:ComputersEquipmentAndSoftware


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value7.9958.0296.6026.2775.954
Percentage of PropertyPlantAndEquipmentGross8596.823614.744013.30.00.0
Percentage of Assets1.11.22.94.04.2
Percentage of Assets wk:ComputersEquipmentAndSoftware0.00.00.00.00.0

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value1516000.01560000.01583000.01633000.01622000.01639000.01651000.01795000.01832000.01322000.01266000.01216000.01196000.01158000.01118000.01088000.01056000.01021000.01012000.0995000.0978000.0936000.0896000.0868000.0812000.0625000.0549000.0167000.0
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.20.20.20.20.30.30.30.70.50.50.60.70.60.70.70.70.70.70.80.80.80.60.60.50.40.30.2

Deferred Tax Assets Liabilities Net

us-gaap:DeferredTaxAssetsLiabilitiesNet

us-gaap:DeferredTaxAssetsLiabilitiesNet


Deferred
Period End2020-12-312019-12-312017-12-312016-12-312015-12-312014-12-31
Value367000.0109000.00000
Percentage of DeferredTaxAssetsLiabilitiesNet100.0100.00.00.00.00.0
Percentage of Assets0.10.00.00.00.00.0

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value151615161718151516170.0
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets2.12.32.22.42.72.92.42.55.96.70.0

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value5127000.04610000.03708000.04059000.04120000.03503000.03439000.03920000.01982000.02042000.0577000.01414000.01025000.0920000.0861000.01553000.01393000.01418000.01499000.01583000.01126000.0774000.0711000.0626000.0699000.0736000.0795000.0631000.0
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.70.70.50.60.60.50.50.60.70.80.20.70.60.50.51.00.91.01.01.20.90.60.50.40.50.50.50.9

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value3704000.04716000.02843000.03651000.03813000.05501000.07057000.04895000.04768000.03182000.05461000.05053000.04688000.05913000.03060000.01861000.01191000.01867000.0849000.05637000.04965000.04156000.05138000.04730000.03875000.02621000.03011000.03993000.0
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.70.40.50.60.91.10.81.71.22.42.52.63.31.91.20.81.30.64.34.03.33.63.22.61.71.85.4

Accrued Liabilities Current

us-gaap:AccruedLiabilitiesCurrent

us-gaap:AccruedLiabilitiesCurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value7660686356424947423336343026202017142017141420171312168.939
Percentage of AccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets10.48.59.79.28.66.67.77.515.113.015.717.017.114.812.813.311.210.714.513.212.011.714.211.89.17.910.212.1

Contract With Customer Liability Current

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:ContractWithCustomerLiabilityCurrent


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value224212208182171172173156156149148128118110104
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets30.429.929.626.626.226.826.924.955.858.564.364.165.262.166.4

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value3072782812512322212312092041871911691551441291231129799897974847770626643
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets41.639.339.936.535.634.535.933.573.073.382.984.385.580.982.079.673.070.169.868.564.960.058.453.146.440.440.658.7

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value4578000.04558000.04541000.04485000.04385000.04341000.03064000.0
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.60.60.70.70.70.5

Other Accrued Liabilities Current

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:OtherAccruedLiabilitiesCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value6103000.06035000.06308000.05550000.09145000.07057000.08906000.06468000.05145000.05727000.05888000.04910000.04712000.04182000.03900000.03774000.03262000.03374000.03808000.03013000.03102000.03528000.03822000.04191000.03281000.04372000.05031000.01853000.0
Percentage of OtherAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.80.90.90.81.41.11.41.01.82.22.52.42.62.32.52.42.12.42.72.32.52.82.72.92.22.83.12.5

Long Term Debt

us-gaap:LongTermDebt us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:LongTermDebt

wk:OnePointOneTwoFivePercentConvertibleSeniorNotesDue2026, us-gaap:ConvertibleDebt


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value294291289287285282280
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets39.841.240.941.843.543.943.4
Percentage of Assets wk:OnePointOneTwoFivePercentConvertibleSeniorNotesDue2026 us-gaap:ConvertibleDebt0.00.00.00.00.00.00.0

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value1338000.01683000.01680000.01748000.01778000.01569000.01498000.01387000.01284000.0969000.06891000.05428000.04056000.03966000.03896000.04008000.03985000.04092000.04100000.04064000.04026000.03491000.03343000.03208000.03049000.02962000.02069000.0335000.0
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.20.20.30.30.20.20.20.50.43.02.72.22.22.52.62.62.92.93.13.32.82.32.22.01.91.30.5

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value161717181920181920200.0
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets2.22.52.42.72.93.22.93.17.28.10.0

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-31
Value5214000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0
Percentage of Assets0.7

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-31
Value3772000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0
Percentage of Assets0.5

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-31
Value3201000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0
Percentage of Assets0.5

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value2312000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.3

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-31
Value6266000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets0.9

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2020-12-31
Value21
Percentage of OperatingLeaseLiability100.0
Percentage of Assets3.1

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-31
Value26
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0
Percentage of Assets3.7

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2020-12-31
Value4599000.0
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0
Percentage of Assets0.7

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value72696479716965709.6273.856-9.74-12.287-17.664-9.218-16.934-14.472-6.128-4.984-3.1250.4288.821162532425055
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.89.89.111.610.910.810.111.23.41.5-4.2-6.1-9.7-5.2-10.7-9.3-4.0-3.6-2.20.37.213.317.922.028.132.833.9

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value0.1890.109-0.067-0.067-0.007-0.0390.0-0.196-0.04
Percentage of StockholdersEquity0.30.20.70.40.2-0.20.00.00.0
Percentage of Assets0.00.0-0.0-0.0-0.0-0.00.0-0.30.0
Percentage of Assets us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value0.2040.1810.230.4870.6680.2780.2870.2940.2320.150.0980.0870.0750.0160.0720.2910.2410.147-0.142-0.042
Percentage of StockholdersEquity0.30.30.40.60.90.40.40.42.43.9-1.0-0.7-0.4-0.2-0.4-9.30.90.30.00.0
Percentage of Assets0.00.00.00.10.10.00.00.00.10.10.00.00.00.00.00.20.20.1-0.20.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value0.0410.1780.1650.1390.2980.280.1470.054-0.002
Percentage of StockholdersEquity0.10.3-1.7-0.8-9.51.10.30.00.0
Percentage of Assets0.00.00.10.10.20.20.10.10.0
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-31
Value503491478474456435420408332318297286270257248217202189
Percentage of StockholdersEquity698.5704.7744.7597.5640.3623.7643.0582.73450.38250.8-3050.8-2334.9-1531.7-2791.2-1466.2-6958.5786.9338.9
Percentage of Assets68.169.467.769.169.667.665.065.2118.6124.1128.6143.1148.9144.0157.4151.9140.6115.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-31
Value0.050.050.0490.0480.0470.0470.0470.0470.0460.0450.0440.0440.0430.0430.0420.0410.0410.039
Percentage of StockholdersEquity0.10.10.10.10.10.10.10.10.51.2-0.5-0.4-0.2-0.5-0.2-1.30.20.1
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-31
Value-431.538-422.024-414.7-396.006-385.499-365.734-355.161-338.863-322.812-314.49-307.027-299.306-288.342-266.574-265.337-220.911-176.934-133.535
Percentage of StockholdersEquity-598.8-605.0-645.2-498.1-541.3-524.2-543.5-483.2-3353.2-8155.93152.22436.01632.42891.91566.97069.2-688.0-239.2
Percentage of Assets-58.4-59.6-58.7-57.6-58.9-56.8-54.9-54.1-115.3-122.7-132.8-149.3-158.7-149.2-168.2-154.3-123.0-81.2
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue us-gaap:StatementClassOfStock

us-gaap:CommonStockValue

us-gaap:CommonClassA


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value43000.042000.041000.040000.039000.038000.038000.038000.037000.036000.034000.034000.033000.033000.032000.031000.031000.030000.030000.030000.030000.029000.029000.029000.028000.028000.027000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonClassA0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonClassB


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value7000.08000.08000.08000.08000.09000.09000.09000.09000.09000.010000.010000.010000.010000.010000.011000.011000.011000.011000.011000.011000.012000.012000.012000.012000.012000.012000.0
Percentage of CommonStockValue16.319.019.520.020.523.723.723.724.325.029.429.430.330.331.235.535.536.736.736.736.741.441.441.442.942.944.4
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonClassB0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Additional Paid In Capital

us-gaap:AdditionalPaidInCapital

us-gaap:AdditionalPaidInCapital


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value503491478474456435420408332318297286270257248236230221217213209205202198194191189
Percentage of AdditionalPaidInCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets68.169.467.769.169.667.665.065.2118.6124.1128.6143.1148.9144.0157.4151.9149.5158.4151.9164.4170.4165.1140.6135.7128.4124.0115.0

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value-431.538-422.024-414.7-396.006-385.499-365.734-355.161-338.863-322.812-314.49-307.027-299.306-288.342-266.574-265.337-251.016-236.943-226.747-220.911-213.395-200.504-188.979-176.934-166.641-152.011-140.982-133.535
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-58.4-59.6-58.7-57.6-58.9-56.8-54.9-54.1-115.3-122.7-132.8-149.3-158.7-149.2-168.2-161.3-153.7-162.2-154.3-164.2-163.4-152.0-123.0-113.9-100.5-91.4-81.2

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312012-12-312011-12-31
Value204000.0181000.0230000.0487000.0668000.0278000.0287000.0294000.0232000.0150000.098000.087000.075000.016000.072000.0116000.0205000.0259000.0291000.0250000.0262000.0215000.0241000.0255000.0192000.0216000.0147000.0-142000.0-42000.00
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.00.00.00.10.10.00.00.00.10.10.00.00.00.00.00.10.10.20.20.20.20.20.20.20.10.10.1-0.20.00.0

Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312014-12-31
Value111110149.9369.2238.5138.1936.949105.9050.47
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312014-12-31
Value111110149.9369.2238.5138.1936.949105.9050.47
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value1211137.7997.1134.7491.9874.697185.119-0.4197.582-2.5461.783-6.2285.1863.9822.589.9522.793-4.036-19.078-5.037-4.718-2.608-9.229-4.607-4.6264.1821.546
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 RevenueFromContractWithCustomerExcludingAssessedTax12.111.014.58.98.55.52.56.325.57.3-0.712.5-4.33.0-11.410.08.15.021.56.2-9.4-42.8-12.6-13.0-7.7-26.3-15.3-16.615.85.5

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-22374000.0-3989000.0-110220000.07839000.0-4165000.02801000.0-10915000.0-54465000.0-8093000.0-16592000.04008000.0-2410000.0-7657000.0427000.0-1509000.0-3229000.0-493000.0-1242000.0-1338000.0-129000.0946000.04326000.0-5094000.0-13375000.0-354000.0-954000.0-679000.0-2889000.01240000.0-1768000.0
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-21.2-3.8-117.58.9-5.03.3-13.6-73.4-11.0-23.76.2-4.0-12.90.7-2.8-6.2-1.0-2.4-2.9-0.32.29.7-12.8-36.9-1.0-2.7-2.3-10.34.7-6.3

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value0.3250.812-7.2688.0275.6044.7551.3473445.197122.4519.0932.5272.8055.3560.6824.211-0.427-0.180.302-0.291-0.726-0.2970.758-0.48-1.083867.629-2.5151.939
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 RevenueFromContractWithCustomerExcludingAssessedTax0.30.8-7.79.16.75.51.7464.27.117.93.814.94.34.79.81.38.5-0.8-0.40.7-0.7-1.6-0.72.1-1.4-3.1285.827.3-9.56.9

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-8.9798.342-103.301248.68711-7.382294151.1525.74114-7.7614.923
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-8.58.0-110.127.310.413.6-9.2396.921.71.68.923.6-13.18.2

Amortization Of Financing Costs

us-gaap:AmortizationOfFinancingCosts

us-gaap:AmortizationOfFinancingCosts


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value253000.0251000.0250000.0248000.0246000.0244000.0242000.0120000.0
Percentage of AmortizationOfFinancingCosts100.0100.0100.0100.0100.0100.0100.0100.0

Depreciation Depletion And Amortization

us-gaap:DepreciationDepletionAndAmortization

us-gaap:DepreciationDepletionAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value1097000.01054000.0863000.01160000.01131000.01142000.01228000.01058000.0971000.0903000.0900000.01133000.0876000.0872000.0934000.0854000.0867000.0891000.0904000.0944000.0975000.0997000.01056000.01058000.01127000.01169000.01125000.01132000.0852000.0768000.0
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 Accounts Payable

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsPayable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-1172000.01908000.0-851000.0-181000.0-1692000.0-1382000.01993000.0516000.01206000.0-1562000.0-300000.0616000.0-1294000.02677000.01198000.0669000.0-678000.01017000.0-4310000.0279000.0797000.0-696000.055000.0857000.01262000.0157000.0-1901000.01727000.01002000.0-2358000.0
Percentage of IncreaseDecreaseInAccountsPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value12-15.2651213-3.847-14.26516-3.579-3.133-14.818241.6910.236-6.5424.2470.7573.228-2.6860.3674.0091.8440.8813.632-0.0470.5840.911-0.0181.794-3.854-0.524
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

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value1211137.7997.1134.7491.9874.697185.119-0.4197.582-2.5461.783-6.2285.1863.9822.589.9522.793-4.036-19.078-5.037-4.718-2.608-9.229-4.607-4.6264.1821.546
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 RevenueFromContractWithCustomerExcludingAssessedTax12.111.014.58.98.55.52.56.325.57.3-0.712.5-4.33.0-11.410.08.15.021.56.2-9.4-42.8-12.6-13.0-7.7-26.3-15.3-16.615.85.5

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-12-102014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-9514000.0-7324000.0-8013000.0-10507000.0-19765000.0-10573000.0-16298000.0-16051000.0-8322000.0-7463000.0-7721000.0-10964000.0-21768000.0-9618000.0-14321000.0-14073000.0-10196000.0-5836000.0-7516000.0-12891000.0-11525000.0-12045000.0-10293000.0-14630000.0-11029000.0-7447000.0-5909000.0-6749000.0-13382000.0-10563000.0-4552000.0-5869000.0-9552000.0-8096000.0-6027000.0
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-9.0-7.0-8.5-11.9-23.6-12.3-20.3-21.6-11.3-10.7-12.0-18.0-36.8-16.1-26.3-27.0-20.6-11.2-16.2-28.8-26.8-27.0-25.8-40.3-32.5-21.20.00.0-47.9-39.8-16.2-24.9-44.9-42.6-28.3

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312014-12-31
Value-9514000.0-7324000.0-10507000.0-19765000.0-10573000.0-16051000.0-8322000.0-7463000.0-10964000.0-21768000.0-9618000.0-5909000.0
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-9.0-7.0-11.9-23.6-12.3-21.6-11.3-10.7-18.0-36.8-16.10.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value11111010149.9369.8559.2238.5138.1937.5226.949105.9056.2764.6644.3974.1393.6853.673.5023.393.1243.0822.622.1741.8461.4132.1691.957
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-22374000.0-3989000.0-110220000.07839000.0-4165000.02801000.0-10915000.0-54465000.0-8093000.0-16592000.04008000.0-2410000.0-7657000.0427000.0-1509000.0-3229000.0-493000.0-1242000.0-1338000.0-129000.0946000.04326000.0-5094000.0-13375000.0-354000.0-954000.0-679000.0-2889000.01240000.0-1768000.0
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-21.2-3.8-117.58.9-5.03.3-13.6-73.4-11.0-23.76.2-4.0-12.90.7-2.8-6.2-1.0-2.4-2.9-0.32.29.7-12.8-36.9-1.0-2.7-2.3-10.34.7-6.3

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value811000.0849000.0110000.0379000.0696000.0688000.0244000.0663000.0454000.01743000.0380000.0523000.0210000.09000.054000.0987000.026000.0121000.0801000.091000.0597000.0412000.0184000.0629000.0159000.0871000.0522000.02768000.03526000.01750000.0
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

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value0.3250.812-7.2688.0275.6044.7551.3473445.197122.4519.0932.5272.8055.3560.6824.211-0.427-0.180.302-0.291-0.726-0.2970.758-0.48-1.083867.629-2.5151.939
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 RevenueFromContractWithCustomerExcludingAssessedTax0.30.8-7.79.16.75.51.7464.27.117.93.814.94.34.79.81.38.5-0.8-0.40.7-0.7-1.6-0.72.1-1.4-3.1285.827.3-9.56.9

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value14.7214.6314.4814.4114.2614.3914.3214.1314.1914.0213.6513.6413.5413.4213.3312.9512.6412.3712.2212.1811.8211.7511.3710.9810.169.659.634.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet

us-gaap:DeferredTaxAssetsNet


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value26181.1140.5160.5640.2830.057
Percentage of DeferredTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value195000.0178000.0182000.0191000.0168000.00
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.00.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value111867258675032
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccretionAmortizationOfDiscountsAndPremiumsInvestments

us-gaap:AccretionAmortizationOfDiscountsAndPremiumsInvestments


Accretion
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value-763000.0-625000.0-349000.0-106000.0-112000.0-101000.0-102000.0-15000.023000.081000.078000.066000.015000.0-18000.0-18000.0-24000.0-28000.0-31000.0-36000.0-36000.0-36000.0-39000.0-45000.0-32000.00000
Percentage of AccretionAmortizationOfDiscountsAndPremiumsInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation


Adjustments
Period End2021-06-302021-03-312020-06-302020-03-312019-03-312018-06-302018-03-31
Value0.7317.1460.7321.3790.390.5191.342
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-06-302020-03-312019-03-312018-06-302018-03-31
Value0.7317.1460.7321.3790.390.5191.342
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationOfDebtDiscountPremium

us-gaap:AmortizationOfDebtDiscountPremium


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302015-12-312015-09-302014-12-312014-09-30
Value2031000.02015000.01998000.01983000.01967000.01953000.01937000.0963000.000133000.0133000.0
Percentage of AmortizationOfDebtDiscountPremium100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0

us-gaap:AmortizationOfFinancingCostsAndDiscounts

us-gaap:AmortizationOfFinancingCostsAndDiscounts


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value2284000.02266000.02248000.02231000.02213000.02197000.02179000.01083000.00000
Percentage of AmortizationOfFinancingCostsAndDiscounts100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:CapitalExpendituresIncurredButNotYetPaid

us-gaap:CapitalExpendituresIncurredButNotYetPaid


Capital
Period End2021-06-302020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value148000.00588000.00444000.001182000.0105000.0254000.0175000.00000-505000.0505000.082000.065000.0354000.0000
Percentage of CapitalExpendituresIncurredButNotYetPaid100.00.0100.00.0100.00.0100.0100.0100.0100.00.00.00.00.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:ContractWithCustomerLiabilityRevenueRecognized


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value8479236864635951514743
Percentage of ContractWithCustomerLiabilityRevenueRecognized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxesAndTaxCredits

us-gaap:DeferredIncomeTaxesAndTaxCredits


Deferred
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value362000.0-346000.063000.0-131000.002000.0-21000.0-28000.0-18000.0-5000.0-4000.00000
Percentage of DeferredIncomeTaxesAndTaxCredits100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Effect
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value310000.016000.0610000.0346000.0135000.0-613000.0199000.0-127000.0110000.0105000.0-299000.083000.0-85000.0-92000.0
Percentage of EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeasePrincipalPayments

us-gaap:FinanceLeasePrincipalPayments


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value424000.0417000.0658000.0335000.0328000.0320000.0664000.0306000.0301000.0294000.0
Percentage of FinanceLeasePrincipalPayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccruedLiabilities

us-gaap:IncreaseDecreaseInAccruedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value16-7.9574.2596.81913-8.0232.3975.4038.966-4.5411.733.2694.642-0.755-0.6753.4742.254-5.8113.6162.410.447-5.8693.6583.5782.046-3.8923.5292.8262.139-1.357
Percentage of IncreaseDecreaseInAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInContractWithCustomerAsset

us-gaap:IncreaseDecreaseInContractWithCustomerAsset


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value9.0181.0599.5724.8182.166-0.6032.32.1063.8332.0295.5471.9392.021.6490.1680.179
Percentage of IncreaseDecreaseInContractWithCustomerAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInContractWithCustomerLiability

us-gaap:IncreaseDecreaseInContractWithCustomerLiability


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value110.1792616-3.64-1.228173.838.2951.987258.638.747-2.3454.9695.904
Percentage of IncreaseDecreaseInContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOperatingLeaseLiability

us-gaap:IncreaseDecreaseInOperatingLeaseLiability


Increase
Period End2021-06-302021-03-312020-06-302020-03-31
Value-1202000.0-1076000.0-1178000.0-1145000.0
Percentage of IncreaseDecreaseInOperatingLeaseLiability100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherNoncurrentAssets

us-gaap:IncreaseDecreaseInOtherNoncurrentAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value110000.0573000.0-385000.0-83000.0609000.074000.0-489000.0943000.0-58000.01464000.0-833000.0389000.0110000.058000.0-692000.087000.0-36000.023000.0-187000.0455000.0323000.063000.085000.0-72000.0-38000.0-56000.0-113000.0201000.00-36000.0
Percentage of IncreaseDecreaseInOtherNoncurrentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:IncreaseDecreaseInOtherReceivables

us-gaap:IncreaseDecreaseInOtherReceivables


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-585000.0161000.0709000.0-224000.0-58000.0253000.0780000.0417000.0-161000.0214000.0-211000.0591000.0-148000.0-27000.0-134000.0-468000.0865000.0-840000.0285000.0365000.0-142000.0224000.0-133000.044000.0424000.0188000.085000.0-108000.0-74000.0-58000.0
Percentage of IncreaseDecreaseInOtherReceivables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-722000.03747000.0-564000.0211000.0890000.01955000.0-1653000.0191000.0310000.03236000.0-1308000.0-2501000.02020000.0-231000.0145000.0-5123000.02830000.0-804000.04415000.0-415000.01327000.0186000.0595000.0218000.065000.0-144000.01309000.0-231000.0347000.0826000.0
Percentage of IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseDebtExcludingAmortization

us-gaap:InterestExpenseDebtExcludingAmortization


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value970000.0971000.0970000.0970000.0970000.0970000.0976000.0468000.0
Percentage of InterestExpenseDebtExcludingAmortization100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeInterest

us-gaap:InvestmentIncomeInterest


Investment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value255000.0360000.0450000.0471000.0655000.01706000.02064000.01460000.0641000.0492000.0435000.0341000.0279000.0223000.0
Percentage of InvestmentIncomeInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value48000.0156000.0-86000.030000.0-30000.0-51000.0-21000.019000.06000.09000.05000.0-10000.042000.0-11000.09000.0-82000.0-52000.0-34000.055000.0-4000.068000.0-101000.029000.059000.0-24000.069000.054000.049000.0-36000.026000.0
Percentage of OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-12-102014-09-302014-06-302014-03-31
Value23000.0-49000.0-257000.0-181000.0390000.0-9000.0-7000.062000.082000.052000.011000.012000.059000.0-56000.0-44000.0-89000.0-54000.0-32000.041000.0-12000.047000.0-26000.0-14000.063000.0-24000.069000.017000.038000.049000.0109000.077000.0
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312014-12-31
Value23000.0-49000.0-181000.0390000.0-9000.062000.082000.052000.012000.059000.0-56000.017000.0
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value-25000.0-205000.0-171000.0-211000.0420000.042000.014000.043000.076000.043000.06000.022000.017000.0-45000.0-53000.0-7000.0-2000.02000.0-14000.0-8000.0-21000.075000.0-43000.04000.0001000.009000.0
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.00.0100.0

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value0.7317.146110.00.7321.3790.00.00.00.390.00.00.5191.3420.1890.00.00.9360.00.00.00.7610.00.00.00.0
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.00.0100.0100.00.00.00.0100.00.00.0100.0100.0100.00.00.0100.00.00.00.0100.00.00.00.00.0

us-gaap:PaymentsToAcquireAvailableForSaleSecuritiesDebt

us-gaap:PaymentsToAcquireAvailableForSaleSecuritiesDebt


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312014-09-30
Value51431307.981620175418226.9356.441110.03.0025.0172.2594.0910.4990.00.8020.08.377150.00.00.0
Percentage of PaymentsToAcquireAvailableForSaleSecuritiesDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.00.0100.00.0100.0100.00.00.00.0

us-gaap:PaymentsToAcquireIntangibleAssets

us-gaap:PaymentsToAcquireIntangibleAssets


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value52000.071000.043000.0102000.074000.077000.022000.051000.0577000.084000.077000.046000.064000.064000.053000.055000.058000.031000.038000.038000.059000.055000.042000.066000.0195000.083000.0157000.0121000.098000.018000.0
Percentage of PaymentsToAcquireIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireOtherInvestments

us-gaap:PaymentsToAcquireOtherInvestments


Payments
Period End2021-06-302019-12-312019-09-302018-12-312018-09-30
Value750000.001000000.000
Percentage of PaymentsToAcquireOtherInvestments100.00.0100.00.00.0

us-gaap:ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans

us-gaap:ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value04237000.003567000.003660000.002773000.002149000.001846000.001370000.00000
Percentage of ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans0.0100.00.0100.00.0100.00.0100.00.0100.00.0100.00.0100.00.00.00.00.0

us-gaap:ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans us-gaap:AwardType, us-gaap:StatementClassOfStock

us-gaap:EmployeeStock, us-gaap:CommonClassA


Proceeds
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value04200000.03500000.003700000.002800000.002100000.001800000.0
Percentage of ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans0.099.198.10.0101.10.0101.00.097.70.097.5

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value3040201613126.451.5117.39114.63.90.51.62.831.853.0010.00.00.00.0
Percentage of ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt

us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt


Proceeds
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value0.250.00.00.0110.00.4980.00.00.00.00.00.00.00.00.00.02.4044.7933.5093.0120.00.00.00.04.864
Percentage of ProceedsFromSaleOfAvailableForSaleSecuritiesDebt100.00.00.00.0100.00.0100.00.00.00.00.00.00.00.00.00.00.0100.0100.0100.0100.00.00.00.00.0100.0

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ProceedsFromStockOptionsExercised


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value1.484.1384.9364.7956.6642.7941.6595.945.498112.7357.5343.3183.0755.8161.1544.7090.8060.2370.840.2360.2840.7491.0620.3530.080.2170.1580.1870.018
Percentage of ProceedsFromStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProvisionForDoubtfulAccounts

us-gaap:ProvisionForDoubtfulAccounts


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value17000.0-118000.032000.0-550000.0319000.040000.0-34000.0-104000.0233000.0-187000.0239000.0128000.0139000.044000.0-258000.0-691000.0146000.0286000.0107000.0-92000.048000.0122000.0101000.0222000.052000.074000.0-5000.0104000.0-100000.0124000.0
Percentage of ProvisionForDoubtfulAccounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-302021-03-312020-12-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-1.5762.11.070.290.330.9821.250000
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-302021-03-312020-12-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-0.91100.931.270.910.970.7222.24000.6513.3
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue

us-gaap:RestrictedStockUnitsRSU


Share
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value4.22.0137.81.51.02.04.30.50.04.23.01.10.00.91.60.00.00.00.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.00.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-302021-03-312020-12-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.4928.960.850.260.012.1214.34-0.10-0.9715.55
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum

us-gaap:EmployeeStock


Share
Period End2020-12-312019-12-312018-12-31
Value00.0040
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum0.0100.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum

us-gaap:EmployeeStock


Share
Period End2020-12-312019-12-312018-12-31
Value0-0.0020
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum0.0100.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue


Share
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value2016126.66.01619345.4135.13.64.31.33.21.00.51.90.8520.6482.54.51.2860.1140.7140.3670.5890.03
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice


Share
Period End2021-06-302021-03-312020-12-31
Value-0.1813.250
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice100.0100.00.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice


Share
Period End2021-06-302021-03-312020-12-31
Value-1.1421.550.02
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice100.0100.0100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1


Sharebased
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value0.40.61.11.40.81.11.22.72.11.93.84.62.52.52.03.22.42.82.51.61.93.01.62.20.80.71.91.7
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SharesPaidForTaxWithholdingForShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:SharesPaidForTaxWithholdingForShareBasedCompensation

us-gaap:CommonStock


Shares
Period End2021-06-302021-03-312020-06-302020-03-312019-03-312018-06-302018-03-31
Value8000.070000.021000.030000.010000.023000.061000.0
Percentage of SharesPaidForTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans

us-gaap:CommonStock


Stock
Period End2021-03-312020-09-302020-03-312019-09-302019-03-312018-09-302018-03-31
Value93000.093000.094000.087000.0101000.099000.080000.0
Percentage of StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardGross us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardGross

us-gaap:CommonStock


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312014-12-31
Value318000.0803000.047000.0153000.0117000.035000.0323000.025000.04000.064000.09000.054000.0
Percentage of StockIssuedDuringPeriodSharesRestrictedStockAwardGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:CommonStock


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312014-12-31
Value117000.0312000.0371000.0443000.0225000.0401000.0455000.0961000.0635000.0328000.0296000.02000.0
Percentage of StockIssuedDuringPeriodSharesStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueEmployeeStockPurchasePlan

us-gaap:StockIssuedDuringPeriodValueEmployeeStockPurchasePlan


Stock
Period End2021-03-312020-09-302020-03-312019-09-302019-03-312018-09-302018-03-31
Value4237000.03567000.03660000.02773000.02149000.01846000.01370000.0
Percentage of StockIssuedDuringPeriodValueEmployeeStockPurchasePlan100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueEmployeeStockPurchasePlan us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-03-312020-09-302020-03-312019-09-302019-03-312018-09-302018-03-31
Value4237000.03567000.03660000.02773000.02149000.01846000.01370000.0
Percentage of StockIssuedDuringPeriodValueEmployeeStockPurchasePlan100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312014-12-31
Value1.484.1384.7956.6642.7945.945.498117.5343.3173.0760.015
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312014-12-31
Value1.484.1374.7946.6642.7945.9395.497117.5333.3173.0750.015
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStock


Stock
Period End2021-03-312020-09-302020-06-302019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value0.0010.0010.00.0010.0010.0010.0010.00.001
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised0.00.00.00.00.00.00.00.00.0

wk:AllowanceForTenantImprovements

wk:AllowanceForTenantImprovements


Allowance
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312016-09-302016-06-30
Value0025000.0124000.0270000.0000912000.01153000.0105000.022000.0000080000.0215000.0
Percentage of AllowanceForTenantImprovements0.00.0100.0100.0100.00.00.00.0100.0100.0100.0100.00.00.00.00.0100.0100.0

wk:IncreaseDecreaseInOperatingLeaseLiability

wk:IncreaseDecreaseInOperatingLeaseLiability


Increase
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-03-31
Value-1087000.0-1115000.0-1178000.0-1145000.0-809000.0-758000.0-813000.0-655000.00
Percentage of IncreaseDecreaseInOperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.00.0

wk:IncreaseDecreaseInOperatingRightofUseAsset

wk:IncreaseDecreaseInOperatingRightofUseAsset


Increase
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-03-31
Value-977000.0-944000.0-1019000.0-875000.0-1098000.0-581000.0-556000.0-668000.00
Percentage of IncreaseDecreaseInOperatingRightofUseAsset100.0100.0100.0100.0100.0100.0100.0100.00.0

wk:SharebasedCompensationArrangementBySharebasedPaymentAwardSharesIssuedInPeriodWeightedAveragePricePerShare us-gaap:AwardType, us-gaap:StatementClassOfStock

wk:SharebasedCompensationArrangementBySharebasedPaymentAwardSharesIssuedInPeriodWeightedAveragePricePerShare

us-gaap:EmployeeStock, us-gaap:CommonClassA


Sharebased
Period End2021-06-302021-03-31
Value045.63
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardSharesIssuedInPeriodWeightedAveragePricePerShare0.0100.0

dei:EntityCommonStockSharesOutstanding us-gaap:StatementClassOfStock

dei:EntityCommonStockSharesOutstanding

us-gaap:CommonClassA


Entity
Period End2020-07-312020-04-282020-02-182019-11-042019-08-022019-04-292019-02-182018-11-052018-08-032018-04-302018-02-202017-11-032017-08-012017-05-022017-02-212016-11-072016-08-012016-05-022016-02-262015-11-022015-08-032015-05-012015-03-10
Value3938383736353434333232313130303029292928282727
Percentage of EntityCommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonClassB


Entity
Period End2020-07-312020-04-282020-02-182019-11-042019-08-022019-04-292019-02-182018-11-052018-08-032018-04-302018-02-202017-11-032017-08-012017-05-022017-02-212016-11-072016-08-012016-05-022016-02-262015-11-022015-08-032015-05-012015-03-10
Value8.4755968.5555968.5955968.6405969.2655969.4255969.4455969.7224849.7864841010101010101011111112121212
Percentage of EntityCommonStockSharesOutstanding21.622.222.422.825.226.427.128.529.231.331.533.634.535.535.836.337.241.041.042.242.444.844.8

us-gaap:AccruedBonusesCurrent

us-gaap:AccruedBonusesCurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312017-12-312016-12-31
Value105.1726.573127.1214.4198.927
Percentage of AccruedBonusesCurrent100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccruedEmployeeBenefitsCurrent

us-gaap:AccruedEmployeeBenefitsCurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value4709000.02569000.04269000.02242000.03862000.02114000.03734000.02026000.02797000.01510000.02156000.01165000.01853000.01016000.01419000.00
Percentage of AccruedEmployeeBenefitsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:AccruedSalariesCurrent

us-gaap:AccruedSalariesCurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value2.5393.932.6312.4637.9994.1227.121117.3373.7295.6439.6726.3093.5874.4197.6425.1072.9098.9276.4214.2742.99.5986.8584.6262.2086.3363.101
Percentage of AccruedSalariesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccruedSalesCommissionCurrent

us-gaap:AccruedSalesCommissionCurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value126.161127.9945.572.7915.5614.5745.3723.7047.2653.3423.3312.8983.2972.4292.1312.1462.3822.3071.8792.4972.471.9171.731.5661.6491.118
Percentage of AccruedSalesCommissionCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccruedVacationCurrent

us-gaap:AccruedVacationCurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value11111010109.438.3538.0957.9477.5926.9066.8196.9316.8496.0875.8265.6865.2894.3684.3364.3424.1613.6043.5023.4483.2742.9492.175
Percentage of AccruedVacationCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent


Allowance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value617000.0599000.0717000.0679000.01210000.0890000.0866000.0890000.01000000.0769000.0956000.0719000.0590000.0451000.0388000.0646000.01335000.01186000.0900000.0794000.0886000.0837000.0713000.0616000.0399000.0345000.0274000.0111000.0
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:AssetsFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312013-12-31
Value280287265396378367360368715552483654495253454337343753619718
Percentage of AssetsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312013-12-31
Value2292092229710610210695423520252315161512121110111217120.00.0
Percentage of AssetsFairValueDisclosure81.972.883.724.728.127.929.525.959.664.639.951.563.628.833.128.923.927.626.329.431.933.832.620.70.00.0

us-gaap:AssetsFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312013-12-31
Value5094964874944844704664641149072745970656766575448455070739718
Percentage of AssetsFairValueDisclosure181.9172.8183.7124.7128.1127.9129.5125.9159.6164.6139.9151.5163.6128.8133.1128.9123.9127.6126.3129.4131.9133.8132.6120.7100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302013-12-31
Value91000.0128000.0296000.0513000.0789000.0332000.0172000.0150000.0102000.020000.001000.00001000.02000.03000.01000.013000.025000.021000.01000.015000.00
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax us-gaap:BalanceSheetLocation

wk:MarketableSecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value91000.0128000.0296000.0513000.0789000.0332000.0172000.0150000.0102000.00
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax us-gaap:FinancialInstrument

us-gaap:CorporateDebtSecurities


Available
Period End2021-06-302021-03-312020-12-312019-12-31
Value86000.090000.0214000.0164000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax94.570.372.395.3

us-gaap:DomesticCorporateDebtSecurities


Available
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value378000.0599000.049000.0164000.0148000.097000.019000.001000.00
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax73.775.914.895.398.795.195.00.0100.00.0

us-gaap:ForeignGovernmentDebtSecurities


Available
Period End2021-06-302021-03-312020-12-31
Value1000.03000.02000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax1.12.30.7

us-gaap:USTreasurySecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value4000.035000.080000.0135000.0190000.0283000.08000.02000.05000.01000.0000
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax4.427.327.026.324.185.24.71.34.95.00.00.00.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302013-12-31
Value74000.084000.049000.01000.01000.0124000.06000.06000.011000.030000.068000.076000.097000.0114000.069000.017000.011000.010000.012000.01000.01000.09000.065000.011000.0196000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax us-gaap:BalanceSheetLocation

wk:MarketableSecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value74000.084000.049000.01000.01000.0124000.06000.06000.011000.068000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax us-gaap:FinancialInstrument

us-gaap:CorporateDebtSecurities


Available
Period End2021-06-302021-03-312020-12-312019-12-31
Value45000.081000.047000.05000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax60.896.495.983.3

us-gaap:DomesticCorporateDebtSecurities


Available
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value1000.01000.0124000.05000.05000.011000.030000.067000.072000.061000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax100.0100.0100.083.383.3100.0100.098.594.788.4

us-gaap:USTreasurySecurities


Available
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value29000.03000.02000.0001000.01000.0001000.04000.08000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax39.23.64.10.00.016.716.70.00.01.55.311.6

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis us-gaap:BalanceSheetLocation

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis

wk:MarketableSecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value22920920697105102106954220
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis us-gaap:FinancialInstrument

us-gaap:CommercialPaper


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-03-312018-12-312018-09-30
Value1010218.9778.9592.9617.4837.44810
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis4.85.210.49.28.52.90.035.80.0

us-gaap:CorporateDebtSecurities


Available
Period End2021-06-302021-03-312020-12-312019-12-31
Value16214414795
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis70.769.271.490.2

us-gaap:DomesticCorporateDebtSecurities


Available
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value69757895853824101213
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis71.771.876.790.289.290.80.052.30.00.0

us-gaap:ForeignGovernmentDebtSecurities


Available
Period End2021-06-302021-03-312020-12-31
Value5.0595.081.025
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis2.22.40.5

us-gaap:USTreasurySecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value51485118202010103.9313.9172.4942.4843.083
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis22.423.225.019.119.720.49.810.89.20.012.00.00.0

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue


Available
Period End2021-06-302021-03-312020-12-31
Value139124130
Percentage of AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesDebtSecurities

us-gaap:AvailableForSaleSecuritiesDebtSecurities


Available
Period End2021-06-302021-03-312020-12-31
Value229209207
Percentage of AvailableForSaleSecuritiesDebtSecurities100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:BalanceSheetLocation

wk:MarketableSecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value22920920797106102106954220
Percentage of AvailableForSaleSecuritiesDebtSecurities100.0100.0100.00.00.00.00.00.00.00.0

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:BalanceSheetLocation, us-gaap:FairValueByMeasurementFrequency

wk:MarketableSecurities, us-gaap:FairValueMeasurementsRecurring


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value22920920797106102106954235202523151615121211101112170.0
Percentage of AvailableForSaleSecuritiesDebtSecurities100.0100.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:CommercialPaper


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value1010218.9778.9592.9610.00.00.07.4837.4480.0
Percentage of AvailableForSaleSecuritiesDebtSecurities4.85.210.40.00.00.00.00.00.00.00.00.0

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


Available
Period End2021-06-302021-03-312020-12-312019-12-31
Value16214414795
Percentage of AvailableForSaleSecuritiesDebtSecurities70.769.271.40.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:DomesticCorporateDebtSecurities


Available
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value70767895853824101113
Percentage of AvailableForSaleSecuritiesDebtSecurities0.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:ForeignGovernmentDebtSecurities


Available
Period End2021-06-302021-03-312020-12-31
Value5.065.0831.027
Percentage of AvailableForSaleSecuritiesDebtSecurities2.22.40.5

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:USTreasurySecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value51485118212110103.9363.9182.4932.483.075
Percentage of AvailableForSaleSecuritiesDebtSecurities22.323.225.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:FairValueMeasurementsRecurring, us-gaap:CommercialPaper


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value1010218.9778.9592.9610.00.00.07.4837.4480.0
Percentage of AvailableForSaleSecuritiesDebtSecurities4.85.210.40.00.00.00.00.00.00.00.00.0

us-gaap:FairValueMeasurementsRecurring, us-gaap:CorporateDebtSecurities


Available
Period End2021-06-302021-03-312020-12-312019-12-31
Value16214414795
Percentage of AvailableForSaleSecuritiesDebtSecurities70.769.271.40.0

us-gaap:FairValueMeasurementsRecurring, us-gaap:DomesticCorporateDebtSecurities


Available
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value70767895853824101113
Percentage of AvailableForSaleSecuritiesDebtSecurities0.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueMeasurementsRecurring, us-gaap:ForeignGovernmentDebtSecurities


Available
Period End2021-06-302021-03-312020-12-31
Value5.065.0831.027
Percentage of AvailableForSaleSecuritiesDebtSecurities2.22.40.5

us-gaap:FairValueMeasurementsRecurring, us-gaap:USTreasurySecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value51485118212110103.9363.9182.4932.483.075
Percentage of AvailableForSaleSecuritiesDebtSecurities22.323.225.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:FinancialInstrument

us-gaap:CommercialPaper


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-03-312018-12-312018-09-30
Value1010218.9778.9592.9617.4837.44810
Percentage of AvailableForSaleSecuritiesDebtSecurities4.85.210.40.00.00.00.00.00.0

us-gaap:CorporateDebtSecurities


Available
Period End2021-06-302021-03-312020-12-312019-12-31
Value16214414795
Percentage of AvailableForSaleSecuritiesDebtSecurities70.769.271.40.0

us-gaap:DomesticCorporateDebtSecurities


Available
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value70767895853824101113
Percentage of AvailableForSaleSecuritiesDebtSecurities0.00.00.00.00.00.00.00.00.00.0

us-gaap:ForeignGovernmentDebtSecurities


Available
Period End2021-06-302021-03-312020-12-31
Value5.065.0831.027
Percentage of AvailableForSaleSecuritiesDebtSecurities2.22.40.5

us-gaap:USTreasurySecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value51485118212110103.9363.9182.4932.483.075
Percentage of AvailableForSaleSecuritiesDebtSecurities22.323.225.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AvailableForSaleSecuritiesDebtSecuritiesCurrent

us-gaap:AvailableForSaleSecuritiesDebtSecuritiesCurrent


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312013-12-31
Value2292092079710610210695423520252315161512121110111217120.02.436
Percentage of AvailableForSaleSecuritiesDebtSecuritiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:CapitalizedContractCostNet

us-gaap:CapitalizedContractCostNet


Capitalized
Period End2020-12-312019-12-312018-12-31
Value452918
Percentage of CapitalizedContractCostNet100.0100.0100.0

us-gaap:CapitalizedContractCostNetCurrent

us-gaap:CapitalizedContractCostNetCurrent


Capitalized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-01-012017-12-31
Value2622211715121412119.58.1785.8873.0262.376
Percentage of CapitalizedContractCostNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CapitalizedContractCostNetNoncurrent

us-gaap:CapitalizedContractCostNetNoncurrent


Capitalized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-01-012017-12-31
Value28232317141514131311107.3684.6550.0
Percentage of CapitalizedContractCostNetNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:CashAndCashEquivalentsFairValueDisclosure us-gaap:BalanceSheetLocation

us-gaap:CashAndCashEquivalentsFairValueDisclosure

us-gaap:CashAndCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value2802872803963783673603687152
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashAndCashEquivalentsFairValueDisclosure us-gaap:BalanceSheetLocation, us-gaap:CashAndCashEquivalents

us-gaap:CashAndCashEquivalents, us-gaap:MoneyMarketFunds


Cash
Period End2020-12-312019-12-312019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312013-12-31
Value2803605552483654495253454337343753619713
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.00.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CashAndCashEquivalentsFairValueDisclosure us-gaap:BalanceSheetLocation, us-gaap:FairValueByMeasurementFrequency

us-gaap:CashAndCashEquivalents, us-gaap:FairValueMeasurementsRecurring


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value28028728039637836736036871555248365449525345433734375397
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CashAndCashEquivalentsFairValueDisclosure us-gaap:CashAndCashEquivalents

us-gaap:MoneyMarketFunds


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312013-12-31
Value280287265396378367360368715552483654495253454337343753619713
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.094.7100.0100.0100.0100.0100.0100.00.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:MoneyMarketFunds, us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312013-12-31
Value280287265396378367360368715552483654495253454337343753619713
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.094.7100.0100.0100.0100.0100.0100.00.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CashAndCashEquivalentsFairValueDisclosure us-gaap:CashAndCashEquivalents, us-gaap:FairValueByMeasurementFrequency

us-gaap:MoneyMarketFunds, us-gaap:FairValueMeasurementsRecurring


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312013-12-31
Value280287265396378367360368715552483654495253454337343753619713
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.094.7100.0100.0100.0100.0100.0100.00.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ContractWithCustomerLiabilityNoncurrent

us-gaap:ContractWithCustomerLiabilityNoncurrent


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value323235342931323128252520212022
Percentage of ContractWithCustomerLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConvertibleDebtFairValueDisclosures us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:ConvertibleDebtFairValueDisclosures

us-gaap:FairValueInputsLevel2


Convertible
Period End2021-06-302021-03-312020-12-312020-09-30
Value521440453338
Percentage of ConvertibleDebtFairValueDisclosures100.0100.0100.0100.0

us-gaap:ConvertibleDebtNoncurrent

us-gaap:ConvertibleDebtNoncurrent


Convertible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value2942912892872852822802780.0
Percentage of ConvertibleDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:DebtInstrumentUnamortizedDiscount us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentUnamortizedDiscount

wk:OnePointOneTwoFivePercentConvertibleSeniorNotesDue2026, us-gaap:ConvertibleDebt


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value45474951535557
Percentage of DebtInstrumentUnamortizedDiscount100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value9996802.3063.846489.085140.9964.983.4818.095
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months us-gaap:FinancialInstrument

us-gaap:CorporateDebtSecurities


Debt
Period End2021-06-302021-03-312020-12-31
Value688165
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months69.184.781.4

us-gaap:DomesticCorporateDebtSecurities


Debt
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value2.3063.846487.0657.6910.9964.983.4815.615
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months100.0100.0100.077.854.8100.0100.0100.069.4

us-gaap:USTreasurySecurities


Debt
Period End2021-06-302021-03-312020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value3014152.026.3390.00.00.02.48
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months30.915.318.622.245.20.00.00.030.6

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value74000.084000.049000.01000.01000.0124000.05000.04000.01000.01000.05000.027000.0
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss us-gaap:FinancialInstrument

us-gaap:CorporateDebtSecurities


Debt
Period End2021-06-302021-03-312020-12-31
Value45000.081000.047000.0
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss60.896.495.9

us-gaap:DomesticCorporateDebtSecurities


Debt
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value1000.01000.0124000.04000.03000.01000.01000.05000.023000.0
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss100.0100.0100.080.075.0100.0100.0100.085.2

us-gaap:USTreasurySecurities


Debt
Period End2021-06-302021-03-312020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value29000.03000.02000.01000.01000.00004000.0
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss39.23.64.120.025.00.00.00.014.8

us-gaap:DeferredFinanceCostsNet us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DeferredFinanceCostsNet

wk:OnePointOneTwoFivePercentConvertibleSeniorNotesDue2026, us-gaap:ConvertibleDebt


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value5660000.05913000.06164000.06414000.06662000.06908000.07152000.0
Percentage of DeferredFinanceCostsNet100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredIncomeTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value25181.1160.5160.5640.2830.057
Percentage of DeferredIncomeTaxLiabilities100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetInterestCarryforward

us-gaap:DeferredTaxAssetInterestCarryforward


Deferred
Period End2020-12-312019-12-31
Value2521000.01131000.0
Percentage of DeferredTaxAssetInterestCarryforward100.0100.0

us-gaap:DeferredTaxAssetsDeferredIncome

us-gaap:DeferredTaxAssetsDeferredIncome


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value115.9735.3384.7623.2555.37217
Percentage of DeferredTaxAssetsDeferredIncome100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsGross


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312014-12-10
Value137104735967503229
Percentage of DeferredTaxAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value347000.01559000.0701000.0167000.0180000.074000.017000.0
Percentage of DeferredTaxAssetsOther100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsPropertyPlantAndEquipment

us-gaap:DeferredTaxAssetsPropertyPlantAndEquipment


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value2636000.06000.018000.015000.012000.01000.056000.0
Percentage of DeferredTaxAssetsPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value1916131116128.056
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value173000.0197000.0283000.0199000.01104000.01407000.01523000.0
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesFinancingArrangements

us-gaap:DeferredTaxLiabilitiesFinancingArrangements


Deferred
Period End2020-12-312019-12-312018-12-31
Value13140.0
Percentage of DeferredTaxLiabilitiesFinancingArrangements100.0100.00.0

us-gaap:DeferredTaxLiabilitiesLeasingArrangements

us-gaap:DeferredTaxLiabilitiesLeasingArrangements


Deferred
Period End2020-12-312019-12-31
Value8772000.09396000.0
Percentage of DeferredTaxLiabilitiesLeasingArrangements100.0100.0

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value4122000.02822000.0587000.076000.0161000.0149000.057000.0
Percentage of DeferredTaxLiabilitiesOther100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value10000.0599000.0529000.0440000.0403000.0134000.00
Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.00.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions us-gaap:AwardType

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions

us-gaap:EmployeeStock


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.120.930.1243980.9490.0960.750.0884780.6810.0650.580.0520.4070.0350.30.0270.2
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStockUnitsRSU


Employee
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value5662697960586058414039365.06.57.57.63.7
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions45016.86564.872812.510533.368152.58560.993230.810120.780000.010049.1112571.412233.318518.53250.00.00.00.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions


Employee
Period End2020-12-312020-09-30
Value700000.01100000.0
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions100.0100.0

us-gaap:FinanceLeaseLiability

us-gaap:FinanceLeaseLiability


Finance
Period End2020-12-31
Value18
Percentage of FinanceLeaseLiability100.0

us-gaap:FinanceLeaseLiabilityCurrent

us-gaap:FinanceLeaseLiabilityCurrent


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value1752000.01728000.01705000.01429000.01395000.01361000.01328000.0
Percentage of FinanceLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityNoncurrent

us-gaap:FinanceLeaseLiabilityNoncurrent


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value15161614151515
Percentage of FinanceLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDue

us-gaap:FinanceLeaseLiabilityPaymentsDue


Finance
Period End2020-12-31
Value29
Percentage of FinanceLeaseLiabilityPaymentsDue100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive


Finance
Period End2020-12-31
Value19
Percentage of FinanceLeaseLiabilityPaymentsDueAfterYearFive100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths


Finance
Period End2020-12-31
Value2660000.0
Percentage of FinanceLeaseLiabilityPaymentsDueNextTwelveMonths100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive


Finance
Period End2020-12-31
Value1315000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearFive100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour


Finance
Period End2020-12-31
Value1315000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearFour100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree


Finance
Period End2020-12-31
Value1315000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearThree100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo


Finance
Period End2020-12-31
Value2436000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearTwo100.0

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount


Finance
Period End2020-12-31
Value10
Percentage of FinanceLeaseLiabilityUndiscountedExcessAmount100.0

us-gaap:FinanceLeaseRightOfUseAssetAccumulatedAmortization

us-gaap:FinanceLeaseRightOfUseAssetAccumulatedAmortization


Finance
Period End2020-12-312019-12-31
Value1800000.0900000.0
Percentage of FinanceLeaseRightOfUseAssetAccumulatedAmortization100.0100.0

us-gaap:FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization

us-gaap:FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization


Finance
Period End2020-12-312019-12-31
Value2122
Percentage of FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization100.0100.0

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent


Finance
Period End2020-12-312019-12-31
Value5.56.0
Percentage of FinanceLeaseWeightedAverageDiscountRatePercent100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:Patents


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value955000.0592000.0320000.0218000.0127000.053000.014800.02000.0
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive

us-gaap:Patents


Finite
Period End2020-12-31
Value217000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:Patents


Finite
Period End2020-12-31
Value374000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:Patents


Finite
Period End2020-12-31
Value104000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFive100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:Patents


Finite
Period End2020-12-31
Value130000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFour100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:Patents


Finite
Period End2020-12-31
Value144000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearThree100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:Patents


Finite
Period End2020-12-31
Value230000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo100.0

us-gaap:InterestPayableCurrent

us-gaap:InterestPayableCurrent


Interest
Period End2021-06-302021-03-312020-12-312019-12-31
Value1455000.0485000.01455000.01446000.0
Percentage of InterestPayableCurrent100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2020-12-31
Value5584000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths100.0

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent


Operating
Period End2020-12-312019-12-31
Value5.55.7
Percentage of OperatingLeaseWeightedAverageDiscountRatePercent100.0100.0

us-gaap:OperatingLossCarryforwards us-gaap:IncomeTaxAuthority

us-gaap:OperatingLossCarryforwards

us-gaap:DomesticCountry


Operating
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value2832501601331178011
Percentage of OperatingLossCarryforwards100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignCountry


Operating
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value1.81.70.6470.480.2091.20.90.398
Percentage of OperatingLossCarryforwards0.60.70.40.40.21.57.80.0

us-gaap:StateAndLocalJurisdiction


Operating
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value21420312610187628.8
Percentage of OperatingLossCarryforwards75.981.478.475.674.677.576.5

us-gaap:OtherReceivablesNetCurrent

us-gaap:OtherReceivablesNetCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value2750000.03314000.03155000.02417000.02630000.02683000.02432000.01651000.01236000.01395000.01181000.01392000.0801000.0949000.0975000.01109000.01573000.0705000.01545000.01261000.0897000.01042000.0818000.0951000.0907000.0482000.0295000.02856000.0
Percentage of OtherReceivablesNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization


Property
Period End2020-12-312019-12-31
Value1614
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization100.0100.0

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value282829383839
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization100.0100.0100.0100.0100.0100.0

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization


Property
Period End2020-12-312019-12-31
Value4546
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization100.0100.0

us-gaap:RevenueRemainingPerformanceObligation

us-gaap:RevenueRemainingPerformanceObligation


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value477421402339296269254212197180173149140131
Percentage of RevenueRemainingPerformanceObligation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SelfInsuranceReserveCurrent

us-gaap:SelfInsuranceReserveCurrent


Self
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value1517000.01347000.01224000.01200000.01076000.01089000.01040000.01150000.01170000.01050000.01100000.01190000.01120000.01000000.01090000.01100000.01100000.01180000.01210000.01100000.01100000.01492000.0900000.0760000.0745000.0775000.0800000.0692000.0
Percentage of SelfInsuranceReserveCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value61.8856.2535.7235.3635.0934.4731.3930.529.6327.9923.9523.022.020.7814.5114.4814.4814.0115.11
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice


Share
Period End2021-06-302021-03-312020-12-312020-09-30
Value14.6414.4814.2814.16
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue


Share
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value2231351427312013421719914217380806565522819452117433129333040
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1


Sharebased
Period End2020-12-312020-09-30
Value214127
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1100.0100.0

us-gaap:TaxCreditCarryforwardAmount us-gaap:IncomeTaxAuthority

us-gaap:TaxCreditCarryforwardAmount

us-gaap:DomesticCountry


Tax
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value16129.36.03.41.4
Percentage of TaxCreditCarryforwardAmount100.0100.0100.0100.0100.0100.0

us-gaap:StateAndLocalJurisdiction


Tax
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value2.92.21.81.30.9020.575
Percentage of TaxCreditCarryforwardAmount17.717.519.421.726.541.1

us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary us-gaap:UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchased

us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary

wk:CloudServicesArrangement


Unrecorded
Period End2020-12-31
Value13
Percentage of UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary100.0

us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary us-gaap:UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchased

us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary

wk:CloudServicesArrangement


Unrecorded
Period End2020-12-31
Value9000000.0
Percentage of UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary100.0

us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary us-gaap:UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchased

us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary

wk:CloudServicesArrangement


Unrecorded
Period End2020-12-31
Value400000.0
Percentage of UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary100.0

wk:CashCashEquivalentsAndAvailableforsaleDebtSecurities

wk:CashCashEquivalentsAndAvailableforsaleDebtSecurities


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302016-12-31
Value509496487494484470466464114907274656754
Percentage of CashCashEquivalentsAndAvailableforsaleDebtSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wk:CashCashEquivalentsAndAvailableforsaleDebtSecuritiesAmortizedCost

wk:CashCashEquivalentsAndAvailableforsaleDebtSecuritiesAmortizedCost


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302016-12-31
Value509496487493484470466464114907274656754
Percentage of CashCashEquivalentsAndAvailableforsaleDebtSecuritiesAmortizedCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wk:ClientDepositsCurrent

wk:ClientDepositsCurrent


Client
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value20181816131112107.395
Percentage of ClientDepositsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0

wk:DebtSecuritiesAvailableForSaleFairValueMaturityAllocatedAndSingleMaturityDateAfterYearOneThroughTwo

wk:DebtSecuritiesAvailableForSaleFairValueMaturityAllocatedAndSingleMaturityDateAfterYearOneThroughTwo


Debt
Period End2021-06-302021-03-312020-12-31
Value878273
Percentage of DebtSecuritiesAvailableForSaleFairValueMaturityAllocatedAndSingleMaturityDateAfterYearOneThroughTwo100.0100.0100.0

wk:DebtSecuritiesAvailableForSaleFairValueMaturityAllocatedAndSingleMaturityDateAfterYearTwoThroughFive

wk:DebtSecuritiesAvailableForSaleFairValueMaturityAllocatedAndSingleMaturityDateAfterYearTwoThroughFive


Debt
Period End2021-06-302021-03-312020-12-31
Value2012000.02015000.02864000.0
Percentage of DebtSecuritiesAvailableForSaleFairValueMaturityAllocatedAndSingleMaturityDateAfterYearTwoThroughFive100.0100.0100.0

wk:DeferredTaxAssetsLeaseLiability

wk:DeferredTaxAssetsLeaseLiability


Deferred
Period End2020-12-312019-12-31
Value9.98410
Percentage of DeferredTaxAssetsLeaseLiability100.0100.0

wk:DeferredTaxAssetsOperatingLossCarryforwardsAndTaxCreditCarryforwards

wk:DeferredTaxAssetsOperatingLossCarryforwardsAndTaxCreditCarryforwards


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value9178514145
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsAndTaxCreditCarryforwards100.0100.0100.0100.0100.0

wk:LesseeOperatingLeaseAnnualExpense us-gaap:SubsequentEventType

wk:LesseeOperatingLeaseAnnualExpense

us-gaap:SubsequentEvent


Lessee
Period End2021-07-31
Value1600000.0
Percentage of LesseeOperatingLeaseAnnualExpense100.0

Line plots across dimensions of each concept


us-gaap:CommonStockValue
us-gaap:StatementClassOfStock
(None,)
Common Stock Valueus-gaap: Statement Class Of Stock
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding
us-gaap:StatementClassOfStock
(None,)
Weighted Average Number Of Diluted Shares Outstandingus-gaap: Statement Class Of Stock
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic
us-gaap:StatementClassOfStock
(None,)
Weighted Average Number Of Shares Outstanding Basicus-gaap: Statement Class Of Stock
us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted
us-gaap:StatementClassOfStock
(None,)
Weighted Average Number Of Share Outstanding Basic And Dilutedus-gaap: Statement Class Of Stock
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities
(None,)
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amountus-gaap: Antidilutive Securities Excluded From Computation Of Earnings Per Share By Antidilutive Securities
us-gaap:EarningsPerShareBasic
us-gaap:StatementClassOfStock
(None,)
Earnings Per Share Basicus-gaap: Statement Class Of Stock
us-gaap:EarningsPerShareDiluted
us-gaap:StatementClassOfStock
(None,)
Earnings Per Share Dilutedus-gaap: Statement Class Of Stock
us-gaap:EarningsPerShareBasicAndDiluted
us-gaap:StatementClassOfStock
(None,)
Earnings Per Share Basic And Dilutedus-gaap: Statement Class Of Stock
COGS Ratio
us-gaap:ProductOrService
(None,)
C O G S  Ratious-gaap: Product Or Service
us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:IncomeStatementLocation
(None,)
Allocated Share Based Compensation Expenseus-gaap: Income Statement Location
us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:ProductOrService, us-gaap:IncomeStatementLocation
(None, 'us-gaap:CostOfSales')
Allocated Share Based Compensation Expenseus-gaap: Product Or Service, us-gaap: Income Statement Location
us-gaap:CostOfGoodsAndServicesSold
us-gaap:ProductOrService
(None,)
Cost Of Goods And Services Soldus-gaap: Product Or Service
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic
us-gaap:StatementClassOfStock
(None,)
Net Income Loss Available To Common Stockholders Basicus-gaap: Statement Class Of Stock
us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted
us-gaap:StatementClassOfStock
(None,)
Net Income Loss Available To Common Stockholders Dilutedus-gaap: Statement Class Of Stock
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:EquitySecuritiesByIndustry
(None,)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Equity Securities By Industry
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService
(None,)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Product Or Service
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components
us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType
(None,)
Property Plant And Equipment Grossus-gaap: Property Plant And Equipment By Type
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components
us-gaap:CommonStockValue
us-gaap:StatementClassOfStock
(None,)
Common Stock Valueus-gaap: Statement Class Of Stock