BLKB


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

Table of contents



us-gaap:CommonStockValue
us-gaap:StatementEquityComponents
us-gaap:SharesIssued

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:IncomeStatementLocation

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:CostOfGoodsAndServicesSold
us-gaap:ProductOrService

us-gaap:CostOfRevenue

us-gaap:GeneralAndAdministrativeExpense

us-gaap:GrossProfit

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeTaxExpenseBenefit

us-gaap:InterestExpense

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:OperatingExpenses

us-gaap:OperatingIncomeLoss

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
us-gaap:OtherComprehensiveIncomeLocation

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:ResearchAndDevelopmentExpense

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

us-gaap:Revenues

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:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:AccountsReceivableNetCurrent

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AmortizationOfIntangibleAssets

us-gaap:PropertyPlantAndEquipmentNet
us-gaap:StatementGeographical

us-gaap:Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssets

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:LiabilitiesCurrent

us-gaap:LongTermDebtCurrent

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:LongTermDebt

us-gaap:LongTermDebtNoncurrent

us-gaap:DeferredIncomeTaxLiabilitiesNet

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:BalanceSheetLocation

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
us-gaap:OtherComprehensiveIncomeLocation

us-gaap:TreasuryStockValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:DeferredIncomeTaxExpenseBenefit

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:PaymentsOfDividends

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:DeferredTaxLiabilities

us-gaap:UnrecognizedTaxBenefits

us-gaap:DeferredTaxAssetsValuationAllowance
us-gaap:IncomeTaxAuthority
us-gaap:OtherComprehensiveIncomeLocation
blkb:AmountsReclassifiedFromAccumulatedOtherComprehensiveIncomeLossToEarnings

blkb:ChangeInCustomerFundsReceivable
us-gaap:StatementEquityComponents
blkb:ExerciseOfStockOptionsAndStockAppreciationRightsShares

blkb:IncreaseDecreaseAccruedExpensesAndOtherLiabilities
us-gaap:SubsequentEventType, us-gaap:VariableRate
blkb:LineOfCreditFacilityVariableInterestRate
us-gaap:VariableRate

blkb:NonoperatingIncomeExpenseExcludingInterestExpense

blkb:OperatingLeaseLeaseNotYetCommencedExpense
us-gaap:OtherComprehensiveIncomeLocation
blkb:OtherComprehensiveIncomeLossNetOfTaxAttributableToParentBeforeReclassifications

blkb:SecurityIncidentAccruedInsuranceRecoveries

blkb:SecurityIncidentExpense

blkb:SecurityIncidentNumberOfConsumerClassActionCases
us-gaap:StatementGeographical

blkb:SecurityIncidentNumberOfCustomerClaims

blkb:SecurityIncidentNumberOfStateAttorneysGeneral

blkb:SurrenderOfSharesUponRestrictedStockAndRestrictedUnitVestingAndExerciseofStockAppreciationRights

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation
us-gaap:StatementEquityComponents
us-gaap:ValuationAllowancesAndReservesType
us-gaap:AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease
us-gaap:ValuationAllowancesAndReservesType
us-gaap:AllowanceForDoubtfulAccountsReceivableRecoveries
us-gaap:ValuationAllowancesAndReservesType
us-gaap:AllowanceForDoubtfulAccountsReceivableWriteOffs

us-gaap:AmortizationOfFinancingCostsAndDiscounts

us-gaap:CapitalizedContractCostAmortization

us-gaap:CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths

us-gaap:ContractWithCustomerLiabilityRevenueRecognized
us-gaap:Range, us-gaap:SubsequentEventType, us-gaap:VariableRate
us-gaap:DebtInstrumentBasisSpreadOnVariableRate1
us-gaap:Range, us-gaap:VariableRate

us-gaap:Depreciation

us-gaap:DepreciationAndAmortization
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:IncomeStatementLocation
us-gaap:DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations

us-gaap:GoodwillForeignCurrencyTranslationGainLoss

us-gaap:IncreaseDecreaseInAccountsPayableTrade

us-gaap:IncreaseDecreaseInDeferredRevenue

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:InsuranceRecoveries

us-gaap:InvestmentIncomeInterest

us-gaap:LeaseCost
us-gaap:Range
us-gaap:LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
us-gaap:Range, us-gaap:SubsequentEventType

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeaseImpairmentLoss

us-gaap:OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent
us-gaap:OtherComprehensiveIncomeLocation
us-gaap:OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
us-gaap:OtherComprehensiveIncomeLocation
us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax
us-gaap:OtherComprehensiveIncomeLocation
us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax
us-gaap:OtherComprehensiveIncomeLocation
us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax

us-gaap:OtherNoncashIncomeExpense

us-gaap:PaymentsOfDebtIssuanceCosts

us-gaap:PaymentsOfFinancingCosts

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation
us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty
us-gaap:PaymentsToAcquireBuildings

us-gaap:PaymentsToDevelopSoftware

us-gaap:ProceedsFromIssuanceOfDebt
us-gaap:CreditFacility
us-gaap:ProceedsFromLinesOfCredit
us-gaap:CreditFacility, us-gaap:SubsequentEventType

us-gaap:ProceedsFromRepaymentsOfRestrictedCashFinancingActivities

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ProvisionForDoubtfulAccounts

us-gaap:RepaymentsOfDebt
us-gaap:CreditFacility
us-gaap:RepaymentsOfLinesOfCredit
us-gaap:CreditFacility, us-gaap:SubsequentEventType

us-gaap:RestructuringCharges
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardGross

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross
us-gaap:StatementEquityComponents

us-gaap:SubleaseIncome

us-gaap:TreasuryStockValueAcquiredCostMethod
us-gaap:StatementEquityComponents
us-gaap:SubsequentEventType

us-gaap:VariableLeaseCost

blkb:AccruedCommissionsAndSalariesCurrentAndLongTerm

blkb:AccruedCustomerCreditBalancesCurrentAndLongTerm

blkb:AccruedExpensesAndOtherCurrentLiabilities

blkb:ActiveCustomers

blkb:AmountReclassifiedFromLeaseholdImprovementsToBuildingImprovements

blkb:DeferredTaxAssetIntangibleAssets

blkb:DeferredTaxAssetsLeasingArrangements

blkb:DeferredTaxAssetsTaxCreditCarryforwardsStateAndForeign

blkb:DeferredTaxLiabilitiesDeferredExpenseSalesCommissions

blkb:DerivativeAssetsCurrentAndLongTerm

blkb:DerivativeLiabilitiesCurrentAndLongTerm

blkb:DueToCustomersCurrent

blkb:EstimatedAmortizationExpenseforFiniteLivedIntangibleAssetsfortheNextFiveYears

blkb:LineofCreditFacilityAvailableIncreaseCapacityAmount
us-gaap:SubsequentEventType

blkb:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFour
us-gaap:LongTermPurchaseCommitmentByCategoryOfItemPurchased
blkb:LongtermPurchaseCommitmentRemainingMinimumAmountCommitted
us-gaap:Range
blkb:NetLeverageRatio
us-gaap:Range, us-gaap:SubsequentEventType

blkb:PrepaidInsuranceCurrentandLongterm

blkb:PrepaidSoftwareMaintenanceAndSubscriptionsCurrent

blkb:PrepaidSoftwareMaintenanceCurrent

blkb:PrepaidSoftwareMaintenanceCurrentAndLongTerm

blkb:SecurityIncidentCumulativeAccruedInsuranceRecoveries

blkb:SecurityIncidentCumulativeExpense

blkb:TaxesPrepaidAndReceivableCurrentAndLongTerm

blkb:UnrecognizedTaxBenefitCurrentandLongterm

dei:EntityCommonStockSharesOutstanding

us-gaap:AccountsPayableTradeCurrent

us-gaap:AccruedInsuranceCurrentAndNoncurrent

us-gaap:AccruedLiabilitiesAndOtherLiabilities

us-gaap:AccruedProfessionalFeesCurrentAndNoncurrent

us-gaap:AccruedVacationCurrentAndNoncurrent
us-gaap:ValuationAllowancesAndReservesType
us-gaap:AllowanceForDoubtfulAccountsReceivable

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

us-gaap:CapitalizedComputerSoftwareAccumulatedAmortization

us-gaap:CapitalizedComputerSoftwareGross

us-gaap:CapitalizedComputerSoftwareNet

us-gaap:CapitalizedContractCostNet

us-gaap:CapitalizedContractCostNetCurrent

us-gaap:CapitalizedSoftwareDevelopmentCostsForSoftwareSoldToCustomers

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations

us-gaap:ContractWithCustomerLiability
us-gaap:ProductOrService

us-gaap:ContractWithCustomerLiabilityNoncurrent

us-gaap:DebtInstrumentCarryingAmount
us-gaap:CreditFacility
us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty
us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentInterestRateEffectivePercentage
us-gaap:CreditFacility

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet

us-gaap:DebtIssuanceCostsLineOfCreditArrangementsNet

us-gaap:DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredTaxAssetsDeferredIncome

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts

us-gaap:DeferredTaxLiabilitiesDeferredExpenseCapitalizedSoftware

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets

us-gaap:DeferredTaxLiabilitiesLeasingArrangements

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeAssets
us-gaap:FairValueByMeasurementFrequency
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeAssetsNoncurrent
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeLiabilities
us-gaap:FairValueByMeasurementFrequency
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeLiabilitiesCurrent

us-gaap:DerivativeLiabilitiesNoncurrent
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation

us-gaap:DerivativeNotionalAmount
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeInstrumentRisk, us-gaap:SubsequentEventType

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:EscrowDeposit

us-gaap:EstimatedInsuranceRecoveries

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:HostingArrangementServiceContractImplementationCostCapitalizedAccumulatedAmortization

us-gaap:HostingArrangementServiceContractImplementationCostCapitalizedAfterAccumulatedAmortization

us-gaap:IncomeTaxExaminationPenaltiesAndInterestAccrued

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:LiabilitiesFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency

us-gaap:LineOfCreditFacilityCurrentBorrowingCapacity

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
us-gaap:CreditFacility
us-gaap:CreditFacility, us-gaap:SubsequentEventType
us-gaap:SubsequentEventType

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear
us-gaap:LongtermDebtType
us-gaap:LongTermDebtPercentageBearingFixedInterestRate
us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty, us-gaap:LongtermDebtType

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

us-gaap:OtherLiabilities

us-gaap:OtherLongTermDebt

us-gaap:OtherRestrictedAssetsCurrent

us-gaap:PrepaidExpenseAndOtherAssets

us-gaap:RestrictedCash

us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue

us-gaap:RevenueRemainingPerformanceObligation

us-gaap:RevenueRemainingPerformanceObligationPercentage

us-gaap:SecurityDeposit
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueNonvested

us-gaap:StockRepurchaseProgramAuthorizedAmount1

us-gaap:StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1
us-gaap:IncomeTaxAuthority
us-gaap:TaxCreditCarryforwardAmount

us-gaap:TaxesPayableCurrentAndNoncurrent

us-gaap:UnbilledContractsReceivable

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate

Plots across concepts


IncomeStatement
Other Comprehensive Income Loss Net Of Tax
Expenses
Other Nonoperating Income Expense
Balance Sheet
Operating Lease Right Of Use Asset
Assets
Other Assets
Current Assets
Cash And Cash Equivalents At Carrying Value
NonCurrent Assets
Operating Lease Right Of Use Asset
PropertyPlantAndEquipmentNet
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
Liabilities
Other Liabilities
Current Liabilities
Operating Lease Liability Current
Noncurrent Liabilities
Other Liabilities Noncurrent
Stockholders Equity
Common Stock Value
CashFlow
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInOperatingActivities
Amortization Of Financing Costs And Discounts
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInFinancingActivities
Payments For Repurchase Of Common Stock
Shares
Weighted Average Number Of Shares Outstanding Basic
OperatingLeaseLiability
Operating Lease Liability Current
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Undiscounted Excess Amount
AccountsReceivable
Allowance For Doubtful Accounts Receivable Current

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:CommonStockValue ██▇▇▇▇▆▆▆▆▆▆▆▆▆▆▅▅▅▅▅▄▄▄▄▄▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▁▁0.0620.0620.0610.0610.0610.0610.060.060.060.060.0590.0590.0590.0590.0590.0590.0580.0580.0580.0580.0580.0570.0570.0570.0570.0570.0560.0560.0560.0560.0560.0550.0550.0550.0550.0540.0540.0540.0540.0540.0540.0530.053NANANA
 us-gaap:SharesIssued us-gaap:StatementEquityComponents us-gaap:CommonStock62.332714NANA60.90392560.901160.93263960.20609160.20709160.18706360.18267859.32763359.32354859.30120959.23384358.55176158.50368758.45606658.41041957.67240157.65795957.54365657.49655956.87381756.69378556.65852956.6415356.04813555.89131955.77629555.74787455.69981755.22208555.06214154.88395454.85960454.24343854.24040854.20577553.95953253.48816953.46913653.35053653.31628NANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding █▁48.44487447.363197NA48.85970748.41837848.455751NA48.46452948.16068447.516912NA48.16014648.05309448.009395NA47.84699747.6913447.48284NA47.39410646.92762646.757458NA46.59671446.40270746.168096NA45.8835745.6609145.552451NA45.56927545.34966645.009213NA44.71810144.11290544.613256NA44.14791144.09804643.916657NA43.47282244.02730744.226074
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic █▁47.75632647.363197NA48.27113948.23992848.0363NA47.75776947.71462147.516912NA47.27959147.22265747.019603NA46.71170946.66248146.501761NA46.15995646.08305545.967863NA45.61683245.57934545.529668NA45.19627745.15595545.127645NA44.73542544.53844444.473519NA44.17283644.11290543.944459NA43.54849443.44700743.352216NA42.74720943.26062543.435218
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount ▁█0.907211.360378NA0.9152261.4849761.170289NA0.2275230.245060.740119NA0.00.02.4e-05NA0.0017190.00.199199NA0.0017230.00.055844NA0.0097650.0127050.018575NA0.00.3300950.351383NA0.0447280.0542220.473299NA0.6042430.7533650.114563NA0.357090.0839750.339263NA0.1242350.144514NA
us-gaap:EarningsPerShareBasic 0.14NA-0.280.10.250.10.030.10.15-0.020.20.240.140.380.660.270.240.250.370.190.170.110.140.170.150.090.110.230.210.080.260.210.150.060.070.06-0.050.060.150.220.210.170.170.20.160.14
us-gaap:EarningsPerShareDiluted 0.14NA-0.280.10.240.10.030.090.15-0.020.190.230.140.370.640.260.230.240.360.190.170.110.140.170.150.090.10.230.20.080.260.210.150.060.070.06-0.050.060.140.220.20.170.170.20.150.13
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 COGS Ratio us-gaap:ProductOrService blkb:Recurring▇▅█▅▇▅▇▅▆▄▅▃▄▃▄▁216.986206.75229.516200.102216.26204.867219.82205.227208.468198.094199.93188.656192.749180.846190.641167.506NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 COGS Ratio us-gaap:ProductOrService us-gaap:TechnologyService▁▁▁▂▃▄▄▃▃▄▅▅▅▆██12.45412.44113.0914.89915.73118.75418.01915.89317.16617.73621.28820.87620.92323.33826.76126.918NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 TTM Greenblatt ROC _ _▅▃▁▄▇▄▂▄▅▂▅▆▅▆▇▆▆▄█▅▅▄▄▅▅▄▄▅▆▄▅▆▅▃▄▃▁▃▄▆▅▄▄13.0436.644-0.8510.08719.5828.4243.5867.88313.4912.18514.67915.78311.37417.58118.73917.96516.74810.57924.02413.5414.19710.43910.27113.96814.4618.0127.58913.50215.9969.27714.62218.00814.3184.5949.8756.185-1.8775.25210.59915.68313.77410.28810.922NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AllocatedShareBasedCompensationExpense ▇▇█▅▅▄▄▄▄▄▃▃▄▃▃▃▃▃▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▂▁▁▂▁▁▁▁▁▁▁▁30.54930.00532.70120.84320.13313.5815.01214.86615.02913.72612.59110.7313.86111.0929.57610.92610.8359.2947.6338.8187.8717.9167.3476.4866.3115.1024.8534.4484.333.7143.9423.0724.7175.1784.7854.8315.7883.8363.9713.5873.533.7963.8193.182.908NA
us-gaap:ComprehensiveIncomeNetOfTax ▄▄▁▄▄▂▄▂▂▃▃▅▂▇█▅▄▄▆▄▄▃▄▄▄▃▃▄▄▃▄▄▄▃▃▃▂▃▄▄▄▄▄▄▄8.8596.496-7.24610.4811.487-4.2119.6990.31-0.8172.5363.62212.777-1.4625.26731.07312.09310.78211.79317.7699.6327.2644.7297.6067.8176.9433.494.84510.6168.5014.68111.8149.396.7863.073.342.383-3.0033.0386.7869.598.8757.5497.5568.6676.78NA
us-gaap:CostOfGoodsAndServicesSold ▇▇█▆▇▇█▇▇▆▇▆▆▆▇▅▅▅▆▅▅▅▅▄▄▄▅▄▄▄▄▃▃▃▃▃▃▂▂▂▂▁▁▁▁▁108.07103.385119.57698.685104.939104.865116.537101.797100.80799.283103.29695.23795.17288.037102.42287.00586.99585.48292.40283.31783.54379.91685.21674.17373.4371.81277.26468.14864.69663.3366.35856.11456.61353.57855.75255.12850.50541.07542.15939.66939.12636.2436.20833.27531.68630.646
us-gaap:CostOfRevenue ▇▇█▆▇▇█▇▇▆▇▆▆▆▇▅▅▅▆▅▅▅▅▄▄▄▅▄▄▄▄▃▃▃▃▃▃▂▂▂▂▁▁▁▁▁108.07103.385119.57698.685104.939104.865116.537101.797100.80799.283103.29695.23795.17288.037102.42287.00586.99585.48292.40283.31783.54379.91685.21674.17373.4371.81277.26468.14864.69663.3366.35856.11456.61353.57855.75255.12850.50541.07542.15939.66939.12636.2436.20833.27531.68630.646
us-gaap:GeneralAndAdministrativeExpense ▆▅█▆▅▄▅▅▅▅▅▄▅▄▅▄▄▄▃▄▃▃▄▃▃▃▃▃▂▂▂▂▂▂▂▂▄▂▁▁▁▁▁▁▁▁32.00830.58745.02334.13229.84225.85528.85728.89728.54327.11727.96224.89428.44725.05127.5223.54521.88221.92319.24222.31919.85719.75622.8418.44617.95516.84316.15915.51913.78112.81812.10112.62812.84912.74212.06914.98521.75314.5019.5828.9759.1769.2029.2727.9016.9018.397
us-gaap:GrossProfit █▇█▇█▇█▇█▇▇▇▇▇▇▆▆▆▆▆▅▅▅▄▄▄▄▄▄▃▃▃▃▂▃▃▂▂▂▂▂▁▁▁▁▁121.37115.806123.03116.316127.052118.756121.302119.323124.827116.547117.922114.295118.5116.147114.555108.508105.298.139105.90399.74696.64889.3490.66184.63882.82975.18175.54976.4574.69264.29268.51471.7468.85562.04564.29967.34459.68553.63152.97155.86254.27651.03449.3749.95148.98545.593
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments ▅▃▁▄▇▄▂▄▅▂▆▆▅▆▇▆▆▅█▅▆▅▄▆▅▄▄▆▆▄▆▇▆▃▄▄▂▄▅▇▆▅▅▆▅▅8.4760.52-6.6726.63216.3195.335-1.2624.939.873-2.95611.48511.4967.41714.22416.00615.34114.3598.48821.37210.88411.4117.6597.25512.34411.3146.0395.4512.27614.9066.60213.28716.4912.5323.027.3424.629-3.4464.810.7615.57213.97510.36611.06913.15510.9149.645
us-gaap:IncomeTaxExpenseBenefit ▆▆█▆▇▆▅▆▇▅▆▆▆▅▁▇▇▅▇▆▇▇▆▇▇▆▆▆█▇▆██▆▇▆▅▆▇█▇▇▇▇▇▇1.7450.6846.9491.7564.4960.696-2.5860.3642.733-1.8342.1510.3320.825-3.527-14.7032.7933.194-3.0234.0881.953.5982.6640.8444.4334.2721.7540.6341.8965.6262.7881.4977.0975.9090.3544.0721.804-1.1752.0414.3975.8115.0472.7823.9224.6364.1243.693
us-gaap:InterestExpense ▇▇▇▆▆▆▆▇█▇▆▆▆▅▅▅▅▄▄▄▄▄▄▃▃▃▃▃▃▃▃▃▃▃▄▃▃▁▁▁▁▁▁▁▁▁5.0545.1145.2383.9973.8934.1594.3855.1115.7995.3233.9384.144.3033.5173.4123.0923.2162.3772.5462.6412.7212.6752.6981.8161.8731.6861.9521.2721.3281.4591.2331.3941.4971.6942.2351.9761.4620.1910.0570.0590.060.024-0.0960.0450.0790.046
us-gaap:NetIncomeLoss ▄▃▁▄▅▄▃▄▄▃▅▅▄▆█▅▅▅▆▅▄▄▄▄▄▄▄▅▅▄▅▅▄▄▄▄▃▄▄▅▅▄▄▄▄▄6.731-0.164-13.6214.87611.8234.6391.3244.5667.14-1.1229.33411.1646.59217.75130.70912.54811.16511.51117.2848.9347.8134.9956.4117.9117.0424.2854.81610.389.283.81411.799.3936.6232.6663.272.825-2.2712.7596.3519.7618.9287.5847.2418.5196.795.952
us-gaap:OperatingExpenses ▇▇█▇▇▇█▇▇▇▆▆▇▆▆▅▅▅▅▅▅▄▅▄▄▃▄▃▃▃▂▂▂▃▂▃▃▂▁▁▁▁▁▁▁▁108.327109.162123.88106.229107.47110.332117.716111.44111.336114.362103.24398.512107.12698.56695.81690.54388.45287.5681.87986.20682.45178.90180.3970.6768.36867.16967.9662.94858.69655.01553.89253.73254.53757.45154.42461.15961.56248.37941.31940.17940.50240.74638.40236.82537.8335.925
us-gaap:OperatingIncomeLoss ▅▃▁▄▇▄▂▄▅▂▅▆▅▆▇▆▆▄█▅▅▄▄▅▅▄▄▅▆▄▅▆▅▃▄▃▁▃▄▆▅▄▄▅▅▄13.0436.644-0.8510.08719.5828.4243.5867.88313.4912.18514.67915.78311.37417.58118.73917.96516.74810.57924.02413.5414.19710.43910.27113.96814.4618.0127.58913.50215.9969.27714.62218.00814.3184.5949.8756.185-1.8775.25210.59915.68313.77410.28810.92213.12611.1559.668
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax ▅▆▇▇▄▂█▃▂▇▃▅▁▇▄▅▅▅▅▅▄▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅1.7832.5116.5254.661-0.887-5.7287.962-3.893-6.0184.59-3.8851.047-8.8176.437-0.476-0.188-0.3790.10.0630.289-0.4310.4030.4160.168-0.196-0.3260.323-0.232-0.3850.555-0.060.094-0.2660.285-0.022-0.123-0.1680.279-0.232-0.273NANANANANANA
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▁█2.1286.66NA5.604-0.336-8.85NA-4.256-7.9573.658-5.7121.613-8.0527.5160.364-0.455-0.3830.2820.4850.698-0.549-0.2661.195-0.094-0.099-0.7950.0290.236-0.7790.8670.024-0.0030.1630.4040.07NANANANANANANANANANANA
us-gaap:OtherNonoperatingIncomeExpense ▅▁▂▃▅▅▂▆█▃▅▁▄0.41-1.162-0.845-0.2250.520.548-0.8390.9111.656-0.4720.349-1.090.069NA0.4670.2150.304NA-0.224-0.239-0.183-0.226-0.450.1840.695-0.295-0.20.0290.225-0.236-0.116-0.14-0.3090.103-0.3260.382-0.14-0.3080.168-0.1070.2160.0690.0020.053-0.1850.003
us-gaap:ResearchAndDevelopmentExpense ██▇▅▆▆▆▆▆▇▆▆▆▆▅▅▅▅▅▅▅▅▅▄▄▅▅▄▄▃▃▃▃▃▃▄▂▂▁▁▁▁▁▁▁▁30.22229.17927.49122.78324.89524.97725.8625.94125.90228.46123.33824.21825.29725.95822.26422.07122.8722.70621.89722.5122.57822.77922.63320.56120.16621.27622.91419.70718.06416.49416.18616.54716.48316.42917.32719.20514.85613.30411.44912.22412.03311.96611.13211.77611.7110.909
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ▇▇█▇█▇█▇▇▇▇▇▇▆▇▆▆▆▆▅▅▅▅▄▄▄▄▄▄▃▃▃▃▃▃▃▂▂▂▂▂▁▁▁▁▁229.44219.191242.606215.001231.991223.621237.839221.12225.634215.83221.218209.532213.672204.184216.977194.424192.195183.621198.305183.063180.191169.256175.877158.811156.259146.993152.813144.598139.388127.622134.872127.854125.468115.623120.051122.472110.1994.70695.04595.53193.40287.27485.76883.22680.67176.239
us-gaap:Revenues ▇▇█▇█▇█▇▇▇▇▇▇▆▇▆▆▆▆▅▅▅▅▄▄▄▄▄▄▃▃▃▃▃▃▃▂▂▂▂▂▁▁▁▁▁229.44219.191242.606215.001231.991223.621237.839221.12225.634215.83221.218209.532213.672204.184216.977195.513192.195183.621198.305183.063180.191169.256175.877158.811156.259146.993152.813144.598139.388127.622134.872127.854125.468115.623120.051122.472110.1994.70695.04595.53193.40287.27485.76883.22680.67176.239
us-gaap:SellingAndMarketingExpense ▆▆▇▆▇██▇▇▇▇▆▆▆▆▆▅▅▅▅▅▄▄▃▃▃▃▃▃▂▂▂▂▂▂▃▂▂▁▁▁▁▁▁▁▁45.45248.79350.61348.4651.95458.73558.18955.49955.00955.45549.80149.07748.49345.47744.13144.19342.96142.2440.04740.6939.30835.61434.22231.13929.72328.56228.71327.09826.43325.11624.96623.83324.42324.39224.33926.27924.22320.37718.23718.73119.04819.34517.78716.95319.02316.423
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:Assets ▇▇█▆▇▆█▇▇▇▆▅▆▅▇▄▅▄▅▄▅▄▅▃▃▃▄▃▂▂▃▂▂▂▃▂▂▁▁▁▁▁▁1903.3621684.342044.7341651.1641896.8091670.9211992.9631710.0121873.9581702.4131615.3051404.7161571.6851367.9341759.4261146.9941338.3861111.1251310.211098.7861185.0841071.9281223.853844.164855.36843.362943.183702.984688.258651.749706.61649.949653.177642.393705.747665.648668.429369.19392.59371.362349.599322.322328.091NANANA
us-gaap:Liabilities ▇▆█▆▇▆█▇▇▇▆▅▆▅▇▄▅▄▅▄▅▄▅▃▃▃▄▃▃▂▃▂▃▂▃▃▃▁▁▁▁▁▁1498.0881268.181618.5841209.3291486.0071290.5281596.1991328.5551501.2561336.6651241.5221041.0311223.4621023.6131452.524870.1021076.297863.0751062.665866.066963.416858.7711013.265640.196660.105655.482757.267518.848515.28487.313545.066493.277499.788492.708558.063517.989521.752225.433252.588226.354212.103193.149205.032NANANA
us-gaap:LiabilitiesAndStockholdersEquity ▇▇█▆▇▆█▇▇▇▆▅▆▅▇▄▅▄▅▄▅▄▅▃▃▃▄▃▂▂▃▂▂▂▃▂▂▁▁▁▁▁▁1903.3621684.342044.7341651.1641896.8091670.9211992.9631710.0121873.9581702.4131615.3051404.7161571.6851367.9341759.4261146.9941338.3861111.1251310.211098.7861185.0841071.9281223.853844.164855.36843.362943.183702.984688.258651.749706.61649.949653.177642.393705.747665.648668.429369.19392.59371.362349.599322.322328.091NANANA
us-gaap:StockholdersEquity ▇▇██▇▇▇▇▆▆▇▆▆▆▅▄▄▄▄▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁405.274416.16426.15441.835410.802380.393396.764381.457372.702365.748373.783363.685348.223344.321306.902276.892262.089248.05247.545232.72221.668213.157210.588203.968195.255187.88185.916184.136172.978164.436161.544156.672153.389149.685147.684147.659146.677143.757140.002145.008137.496129.173123.059NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AssetsCurrent ▇▄█▄▆▄▇▄▆▄▆▄▅▃█▃▅▃▅▃▄▂▄▂▂▂▃▂▂▂▂▁▁▁▂▂▂▁▂▂▁▁▁691.008465.284819.06412.715667.104428.622734.539445.945600.141413.883597.982375.282536.51359.563794.102307.095487.675318.302507.919292.824371.843253.975399.112209.332215.339199.735287.782210.836192.123181.495229.769168.764165.281149.404213.748176.148174.902164.305187.948171.717147.786121.263143.148NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▄▄▅▄▄▄▅▄▅▄▅▄▄▄▄▂▂▂▂▂▂▂▂▃▂▂▂█▄▅▂▂▁▁▂▄▃▇██▅▄▄▄▂▃28.28827.75335.7530.56330.53124.97231.8129.08432.65425.18730.86625.35229.19425.01329.8317.0517.26813.87216.90216.46215.26312.08415.36217.55513.22713.28614.73553.9624.84732.5511.88916.6797.38.44913.49125.58221.19245.96752.5251.99933.39724.12627.97426.25313.26423.281
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents ▅▂█▂▅▂▇▂▄▂▅▁▃▁█462.855282.911644.969234.223452.446257.222577.295272.14386.787244.583449.846205.081324.657195.805640.174NANANA370.673NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AccountsReceivableNetCurrent ▇▄▅▅█▄▄▄█▄▄▅█▄▅▅█▄▄▄▆▃▄▃▄▃▃▃▄▂▂▃▄▃▃▄▄▂▂▂▃▁▂119.2783.33395.40496.83129.67589.19188.86890.7131.27790.72786.59595.858130.50988.91196.293100.868129.8990.5188.93286.111107.74978.45680.04678.15287.46274.90177.52369.19484.42563.36866.96971.30985.74969.40275.69283.35189.20863.48662.65662.64168.6150.31159.804NANANA
us-gaap:PrepaidExpenseAndOtherAssetsCurrent ██▆▆▆▆▅▅▆▅▄▅▅▅▄▃▃▃▃▃▃▃▃▂▂▂▂▁▁▁▁▁▁▁▂▂▃▁▁▁▁103.49398.09578.36676.76183.69981.00467.85275.32176.72873.09959.78868.84275.81668.47456.09950.08251.28549.17248.31452.14553.79748.43548.66639.55741.62839.07440.39230.828.27129.9430.11530.28632.20527.52840.58937.54944.22932.40131.01630.72429.77NA33.847NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:PropertyPlantAndEquipmentGross NANA175.232NANANA139.614NANANA147.629NANANA145.843NANANA146.17NANANA134.647NANANA117.248NANANA101.548NANANA89.383NANANA64.392NANANA54.474NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType blkb:Blkb_BuildingSystemsMemberNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType blkb:ComputerSoftwareNANA23.116NANANA35.726NANANA34.294NANANA34.058NANANA31.604NANANA26.457NANANA24.126NANANA19.989NANANANANANANANANANANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:BuildingImprovementsNANA9.942NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:ComputerEquipmentNANA56.202NANANA67.045NANANA75.06NANANA76.331NANANA81.26NANANA77.668NANANA67.145NANANA59.394NANANA56.969NANANA39.665NANANA30.616NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:ConstructionInProgressNANA3.435NANANA0.213NANANA0.233NANANA3.102NANANA2.972NANANA2.337NANANA0.587NANANA0.093NANANA1.854NANANA3.836NANANA1.332NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:EquipmentNANA2.865NANANA4.512NANANA4.243NANANA2.728NANANA2.403NANANA3.868NANANA3.68NANANA3.71NANANA2.43NANANA2.809NANANA3.66NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:FurnitureAndFixturesNANA2.796NANANA7.823NANANA7.004NANANA7.265NANANA7.989NANANA7.146NANANA7.182NANANA6.987NANANA5.486NANANA5.028NANANA4.961NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:LeaseholdImprovementsNANA6.044NANANA24.295NANANA26.795NANANA22.359NANANA19.942NANANA17.171NANANA14.528NANANA11.375NANANA5.104NANANA3.394NANANA2.923NANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment NANA70.055NANANA104.068NANANA107.598NANANA103.6NANANA95.901NANANA81.996NANANA66.846NANANA51.998NANANA40.32NANANA29.995NANANA31.511NANANA
us-gaap:AmortizationOfIntangibleAssets ▂▂▃▃▃▃█▃▅▅▅▅▅▅▄▃▃▃▃▃▃▃▃▂▂▂▁▃▂▃▃▃▃▃▃▃▂▁▁▁▁▁▁▁▁▁0.5670.5490.6960.7490.7290.7412.0850.7031.1521.3761.1371.2371.2011.2691.1070.7340.7390.6910.6930.6870.7080.7520.6950.5240.5240.4880.1740.6240.4180.5870.6110.6140.6360.6780.6890.690.530.1970.2510.2490.2450.2330.2110.1950.1960.196
us-gaap:PropertyPlantAndEquipmentNet ████▂▂▂▂▂▂▂▃▃▃▃▃▃▃▃▃▄▄▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▂▂▁▁▁▁104.914105.124105.177109.46936.53935.66135.54637.28539.56938.75740.03142.90144.53144.64742.24343.90345.67947.250.26952.46654.14454.54352.65149.02448.9647.44450.40248.01447.3947.92549.5548.41349.80248.04549.06342.85843.9834.77334.39728.77825.55823.81922.963NANANA
us-gaap:Goodwill ██████████▇▇▇▇▇▆▆▆▆▆▅▅▅▄▄▄▄▃▄▃▃▃▃▃▃▃▃▁▁▁▁▁▁637.51637.113635.854632.84630.687631.033634.088630.644632.269634.845545.213547.338547.312537.433530.249472.776472.643438.307438.24438.45436.012435.994436.449345.77345.873348.605349.008274.065277.2264.819264.599264.639264.454265.667265.055263.172262.56890.21690.12289.25589.4588.93576.247NANANA
us-gaap:IntangibleAssetsNetExcludingGoodwill ▆▆▆▆▇▇▇▇██▇▇▇▇▇▆▆▆▆▆▆▆▇▅▅▅▅▃▃▃▃▃▄▄▄▄▄▁▁▁▁▁▁260.072269.118277.506284.414292.187303.097317.895327.089340.615355.751291.617305.394317.22306.776314.651252.713263.347243.263253.676264.405273.445284.188294.672204.738212.596220.91229.307147.422150.877137.572143.441149.698155.746162.525168.037173.736177.74742.81844.6640.34342.22944.85238.515NANANA
us-gaap:OperatingLeaseRightOfUseAsset ▂▂▂▃▇▇████▁22.6320.05522.67130.21895.575100.568104.4110.84107.165110.4850.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent ████▇▇▇▇▇▇▇▇▇▇▃▃▃▃▃▃▃▃▃▄▄▃▃▃▃▃▃▃▃▂▂▂▂▂▁▁▁▁▁70.66674.02272.63972.61768.67366.34665.19364.15466.31967.46165.36365.51264.08962.45324.08321.88924.0822.91422.52418.10221.84720.20721.41835.332.59226.66826.68422.64720.66819.93819.25118.43517.89416.7529.8449.2138.4588.5266.0875.7165.4942.6142.579NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:ContractWithCustomerLiabilityCurrent █▂▅▆▇▂▅▆▇▁▃339.67290.025312.236322.452332.57288.682314.335320.982327.299281.082295.991NANANA275.063NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LiabilitiesCurrent ▇▅█▅▇▅█▅▆▅▆▄▅▄█▄▅▃▅▃▄▃▄▂▂▂▃▂▂▂▂▂▂▂▂▂▃▁▁▁▁▁▁877.627646.1341013.404620.268858.885622.779988.837677.438790.544601.075805.655566.49693.255504.35976.004488.159641.716465.962680.116454.675522.414397.653566.298353.709353.963315.079421.004306.05293.006267.308356.682287.664272.007250.524311.695262.994413.49213.633240.041216.508198.905183.735195.713NANANA
us-gaap:LongTermDebtCurrent ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▁▁▁▁▁█12.91112.87512.8410.3059.19410.3517.57.57.57.57.58.5768.5768.5768.5768.5767.54.3754.3754.3754.3754.3754.3754.3754.3754.3754.3754.3724.3754.37517.15812.511.2510.010.010.0165.0NA0.0NANANANANANANA
us-gaap:OperatingLeaseLiabilityCurrent ▄▄▄▇████▇▇▁7.8567.1919.35916.63319.31619.67219.78419.39916.15516.7550.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:LongTermDebt ▇█▅▁547.306553.515534.177509.641NANANANANANANANANANANANANANANANANANANANANANANANA173.906175.0152.908173.7195.5211.0215.5245.0259.6NANANANANANANANANA
us-gaap:LongTermDebtNoncurrent ▇▇▇▇▇▇▆▇██▅▆▆▆▆▄▅▅▅▅▅▆▆▃▃▄▄▂▂▂▂▂▂▃▃▃▁531.973537.924518.193497.953478.919520.576459.6495.556553.812576.068379.624416.68471.236458.592429.648329.38380.162351.995338.018370.642398.865417.989404.229237.293253.13281.413276.196166.771167.77168.77135.75161.2184.25201.0205.5235.094.6NA0.0NANANANANANANA
us-gaap:DeferredIncomeTaxLiabilitiesNet █▇▇▅▄▃▄▅▅▅▄▅▅▅▁▂▂56.22754.44454.08646.98945.10843.28644.59447.23748.65848.0544.29147.40548.05548.0837.59739.35240.78NA29.558NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesNoncurrent ▆▆▇██▇▃▄▃▂▆▄▄▅▃▅▅▅▅▄▅▅▅▄▄▄▄▄▅▄▄▃▃▂▃▂▂▁▁▁▁▂▁9.3399.43910.86612.6111.88310.9375.7426.1775.8024.3029.3887.0277.4747.5165.6327.7997.5727.8018.5337.4678.1028.07.6237.0256.7477.4457.4376.147.9946.2986.6555.855.6324.3665.2814.5183.1372.3572.7752.8542.6053.2882.419NANANA
us-gaap:OperatingLeaseLiabilityNoncurrent ▂▂▂▃▇▇████▁17.17315.74417.35725.70686.58691.23595.624100.133100.116102.880.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANA5.79616.745NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANA4.41712.034NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NANA3.2119.107NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA1.9052.491NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA3.8470.535NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:StockholdersEquity ▇▇██▇▇▇▇▆▆▇▆▆▆▅▄▄▄▄▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁405.274416.16426.15441.835410.802380.393396.764381.457372.702365.748373.783363.685348.223344.321306.902276.892262.089248.05247.545232.72221.668213.157210.588203.968195.255187.88185.916184.136172.978164.436161.544156.672153.389149.685147.684147.659146.677143.757140.002145.008137.496129.173123.059NANANA
us-gaap:CommonStockValue ██▇▇▇▇▆▆▆▆▆▆▆▆▆▆▅▅▅▅▅▄▄▄▄▄▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▁▁0.0620.0620.0610.0610.0610.0610.060.060.060.060.0590.0590.0590.0590.0590.0590.0580.0580.0580.0580.0580.0570.0570.0570.0570.0570.0560.0560.0560.0560.0560.0550.0550.0550.0550.0540.0540.0540.0540.0540.0540.0530.053NANANA
us-gaap:AdditionalPaidInCapitalCommonStock ██▇▇▆▆▆▅▅▅▅▅▄▄▄▄▄▄▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁605.486574.958544.963512.269491.45471.344457.804442.803427.95412.937399.241386.657375.949362.113351.042341.476330.559319.731310.452302.837294.81285.376276.34265.024257.996251.34245.674237.152230.944225.075220.763216.827213.707208.853203.638198.825194.254182.498175.401171.025167.402162.32158.419NANANA
us-gaap:RetainedEarningsAccumulatedDeficit █▇▇██▇▇▇█▇██▇▇▅▄▄▃▃▂▂▂▂▂▂▂▂▂▂▁▂▁▁▁▁▁▁▂▂▂▂▂▂243.312236.56236.714250.328245.428233.575234.855239.422240.745239.487246.477242.964237.609236.818195.649170.699163.911158.501152.729141.124136.338134.192134.877134.075131.793130.348131.658132.288127.448123.705125.398119.2115.239114.079116.862119.062121.616129.279131.921136.582132.152128.551126.285NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax █▇▅▃▁▁▄▁▃▅▄▆▅█▅▅▆▆▆▅▅▅▅▅▅▅▅▅▅▆▅▅▅▅▅▅▅▅▅▅▆▆▆6.2914.163-2.497-8.872-14.476-14.14-5.29-13.665-9.409-1.452-5.110.602-1.0117.041-0.649-1.013-0.558-0.175-0.457-0.942-1.64-1.091-0.825-2.02-1.926-1.827-1.032-1.061-1.297-0.518-1.385-1.409-1.406-1.569-1.973-2.043-1.601-0.869-1.148-0.687-0.516-0.463-0.512NANANA
us-gaap:TreasuryStockValue █▇▆▅▅▅▄▄▄▄▄▄▄▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁449.877399.583353.091311.951311.661310.447290.665287.163286.644285.284266.884266.597264.383261.71239.199234.329231.881230.065215.237210.357207.898205.377199.861193.168192.665192.038190.44184.299184.173183.882183.288178.001174.206171.733170.898168.239167.646167.205166.226161.966161.596161.288161.186NANANA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue █▁30.54930.005NA20.84320.13313.58NA14.86615.02913.72612.59110.7313.86111.0929.57610.92610.8359.2947.6339.2187.8717.9167.3476.4866.3115.1024.8534.4484.333.7143.9423.0734.7175.1784.7854.7485.8713.8363.9713.5873.533.796NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities █▅▅█▇▁▇█▆▂▇█▆▃▆▇▆▄▆▇▅▃▅▅▆▃▄▅▅▄▅▅▄▄▅▅▃▃▄▅▄▄▃▄▄▃69.81930.10338.7971.67761.991-24.50360.35377.03555.1-10.01163.55471.43754.64111.75352.90568.83441.78712.76453.48462.15737.8830.10429.04937.72743.3334.23116.78540.38831.8413.26429.27440.49824.53212.9429.02228.726.9643.98517.80829.87320.33417.5127.04524.17717.3587.328
us-gaap:NetCashProvidedByUsedInInvestingActivities ███▇█████▅██▇█▅█▇█████▃███▄█▇███████▁█████████-13.218-12.772-13.983-30.298-13.762-13.804-14.256-14.496-16.61-121.857-12.937-13.605-53.339-17.91-106.643-8.712-60.282-9.243-9.516-13.707-10.572-13.635-196.238-11.952-8.867-5.65-163.485-5.863-34.609-7.407-7.505-4.067-4.655-7.932-5.803-4.788-285.601-6.297-13.14-5.139-6.511-16.948-5.107-3.836-4.082-5.199
us-gaap:NetCashProvidedByUsedInFinancingActivities ▆▂█▃▆▂▇▃▆▄▆▃▆▁▇▄▅▅▄▄▅▅▆▅▄▅▆▅▅▅▅▅▅▅▄▅▇▅▅▅▅▅▅▅▅▅122.581-379.619383.071-261.208146.402-278.944255.84-175.472105.276-74.431195.877-178.729129.869-438.925323.947-60.59222.062-6.776-43.37-47.324-23.3989.546165.166-21.209-33.6460.075107.31-4.873-5.09214.699-26.365-27.185-20.826-9.912-34.942-20.156254.234-4.58-4.823-5.113-4.486-4.841-0.379-7.825-23.034-1.51
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▆▂▇▃▆▂▇▃▅▃▆▃▅▁█▃▅▃▆179.944-362.058410.746-218.223195.224-320.073305.155-114.647142.204-205.263244.765-119.576128.852-444.369484.029-129.063113.763-199.228224.619NANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:DeferredIncomeTaxExpenseBenefit ▆▅█▅▆▆▄▅▆▅▄▅▅▆▁▅▅▅▆▅▅▅▇▅▅▅▆▅▆▅▇▇▇▅▇▆▅▆█▇▆▅█▆▆▆1.418-1.1426.958-0.0660.9910.954-3.525-0.541.62-1.155-2.0490.3090.2190.902-11.817-1.272-1.189-0.053.258-0.096-0.6870.5585.439-1.4730.085-0.8862.964-1.6711.1410.6164.6814.2595.121-0.1884.9152.206-0.5030.9677.4453.6352.0710.3827.7211.7430.9420.795
us-gaap:IncreaseDecreaseInAccountsReceivable ▇▃▄▂█▅▄▁█▄▄▁█▄▄▂█▅▅▃▇▄▄▄▅▄▅▃▆▄▄▃▆▄▄▄▅▄▅▄▆▃▅▄▅▄37.541-10.4070.095-29.84844.2913.8760.194-38.69643.2741.797-6.646-33.61243.18-5.088-1.419-27.71840.8464.0413.908-20.80930.914-0.8171.215-6.97713.91-0.5554.489-13.83517.772-2.6760.042-15.16917.37-5.404-2.568-4.1714.4491.6862.828-4.75719.734-9.1135.502-4.99113.236-0.696
us-gaap:NetCashProvidedByUsedInOperatingActivities █▅▅█▇▁▇█▆▂▇█▆▃▆▇▆▄▆▇▅▃▅▅▆▃▄▅▅▄▅▅▄▄▅▅▃▃▄▅▄▄▃▄▄▃69.81930.10338.7971.67761.991-24.50360.35377.03555.1-10.01163.55471.43754.64111.75352.90568.83441.78712.76453.48462.15737.8830.10429.04937.72743.3334.23116.78540.38831.8413.26429.27440.49824.53212.9429.02228.726.9643.98517.80829.87320.33417.5127.04524.17717.3587.328
us-gaap:NetIncomeLoss ▄▃▁▄▅▄▃▄▄▃▅▅▄▆█▅▅▅▆▅▄▄▄▄▄▄▄▅▅▄▅▅▄▄▄▄▃▄▄▅▅▄▄▄▄▄6.731-0.164-13.6214.87611.8234.6391.3244.5667.14-1.1229.33411.1646.59217.75130.70912.54811.16511.51117.2848.9347.8134.9956.4117.9117.0424.2854.81610.389.283.81411.799.3936.6232.6663.272.825-2.2712.7596.3519.7618.9287.5847.2418.5196.795.952
us-gaap:ShareBasedCompensation ▇▇█▅▅▄▄▄▄▄▃▃▄▃▃▃▃▃▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▂▁▁▂▁▁▁▁▁▁▁▁▁30.54930.00532.70120.84320.13313.5815.01214.86615.02913.72612.59110.7313.86111.0929.57610.92610.8359.2947.6339.2187.8717.9167.3476.4866.3115.1024.8534.4484.333.7143.9423.0734.7175.1784.7854.8315.7883.8363.9713.5873.533.7963.8193.182.9083.152
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ███▇█████▅██▇█▅█▇█████▃███▄█▇███████▁█████████-13.218-12.772-13.983-30.298-13.762-13.804-14.256-14.496-16.61-121.857-12.937-13.605-53.339-17.91-106.643-8.712-60.282-9.243-9.516-13.707-10.572-13.635-196.238-11.952-8.867-5.65-163.485-5.863-34.609-7.407-7.505-4.067-4.655-7.932-5.803-4.788-285.601-6.297-13.14-5.139-6.511-16.948-5.107-3.836-4.082-5.199
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▂▂▃█▂▂▂▂▃▂▂▂▃▃▂▂▂▂▂▂▃▄▃▄▃▂▃▂▁▃▄▂▃▃▃▃▃▃▃▃▃▂▁▃▂▃2.6583.473.85419.9493.022.8671.8953.2225.2231.1521.8093.3353.8045.7711.7912.7512.9472.7192.2352.894.7327.8374.0737.5464.4932.5215.5942.894-0.6966.1196.6793.3393.7766.2925.133.8595.2716.2975.2185.2946.631.0730.1633.8361.6925.069
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▆▂█▃▆▂▇▃▆▄▆▃▆▁▇▄▅▅▄▄▅▅▆▅▄▅▆▅▅▅▅▅▅▅▄▅▇▅▅▅▅▅▅▅▅▅122.581-379.619383.071-261.208146.402-278.944255.84-175.472105.276-74.431195.877-178.729129.869-438.925323.947-60.59222.062-6.776-43.37-47.324-23.3989.546165.166-21.209-33.6460.075107.31-4.873-5.09214.699-26.365-27.185-20.826-9.912-34.942-20.156254.234-4.58-4.823-5.113-4.486-4.841-0.379-7.825-23.034-1.51
us-gaap:PaymentsOfDividends NANA0.00.00.05.965.9025.9035.9015.9015.8285.8315.8285.8255.775.7695.7655.7655.7035.715.6985.75.6255.6285.6295.6265.4765.555.5445.5375.6235.4995.485.4795.4835.4185.4215.4095.3955.3485.355.3364.8814.774.9294.91
us-gaap:PaymentsForRepurchaseOfCommonStock █▁30.00828.066NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value62000.062000.061000.061000.061000.061000.060000.060000.060000.060000.059000.059000.059000.059000.059000.059000.058000.058000.058000.058000.058000.057000.057000.057000.057000.057000.056000.056000.056000.056000.056000.055000.055000.055000.055000.054000.054000.054000.054000.054000.054000.053000.053000.052000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Shares Issued

us-gaap:SharesIssued us-gaap:StatementEquityComponents

us-gaap:SharesIssued

us-gaap:CommonStock


Shares
Period End2021-06-302020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value6260606060606060595959595858585857575757565656565655555555555554545454545353535353525150
Percentage of SharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value4847484848484847484848474747474646464646454545454545444444444443434444
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value4747484848474747474747464646464645454545454545444444444443434343424343
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


Antidilutive
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value907210.01360400.0915230.01485000.01170300.0227520.0245060.0740120.00024.01719.00199200.01723.0055844.09765.012705.018575.00330100.0351380.044728.054222.0473300.0604240.0753360.0114560.0357090.083975.0339260.0124240.0144510.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.00.0100.0100.00.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.14-0.280.10.250.10.030.10.15-0.020.20.240.140.380.660.270.240.250.370.190.170.110.140.170.150.090.110.230.210.080.260.210.150.060.070.06-0.050.060.150.220.210.170.170.20.160.14
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.14-0.280.10.240.10.030.090.15-0.020.190.230.140.370.640.260.230.240.360.190.170.110.140.170.150.090.10.230.20.080.260.210.150.060.070.06-0.050.060.140.220.20.170.170.20.150.13
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:AllocatedShareBasedCompensationExpense


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value30303220201315141513121013119.57610109.2947.6338.8187.8717.9167.3476.4866.3115.1024.8534.4484.333.7143.9423.0724.7175.1784.7854.8315.7883.8363.9713.5873.533.7963.8193.182.908
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.313.713.59.78.76.16.36.76.76.45.75.16.55.44.45.65.65.13.84.84.44.74.24.14.03.53.23.13.12.92.92.43.84.54.03.95.34.14.23.83.84.34.53.83.6

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:IncomeStatementLocation

blkb:CostOfRecurring


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value3.4922.4112.5641.6081.1510.470.4640.4520.4510.5120.6780.6160.7180.4520.370.4340.4430.38
Percentage of AllocatedShareBasedCompensationExpense11.48.07.87.75.73.53.13.03.03.75.45.75.24.13.94.04.14.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.51.11.10.70.50.20.20.20.20.20.30.30.30.20.20.20.20.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax blkb:CostOfRecurring0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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
Value5.2375.3586.2513.6882.570.8650.8170.7840.7910.9741.2321.271.6451.0950.7950.934
Percentage of AllocatedShareBasedCompensationExpense17.117.919.117.712.86.45.45.35.37.19.811.811.99.98.38.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.32.42.61.71.10.40.30.40.40.50.60.60.80.50.40.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CostOfSales0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:GeneralAndAdministrativeExpense


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value1312139.0539.6127.4388.7158.4098.6587.1676.6295.0736.9616.0365.4186.2136.0375.3474.4745.1734.6184.6084.313.8043.2722.5222.3552.2422.0271.7051.5670.892.1342.1961.6761.874
Percentage of AllocatedShareBasedCompensationExpense45.041.742.043.447.754.858.156.657.652.252.647.350.254.456.656.955.757.558.658.758.758.258.758.651.849.448.550.446.845.939.829.045.242.435.038.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.05.75.74.24.13.33.73.83.83.33.02.43.33.02.53.23.12.92.32.82.62.72.52.42.11.71.51.61.51.31.20.71.71.91.41.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:GeneralAndAdministrativeExpense0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingExpense


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value25242617171214141412119.46129.9978.7819.9929.8858.5036.9397.9027.0987.0446.5725.7175.2624.2013.9593.5663.3772.8382.9172.1643.741
Percentage of AllocatedShareBasedCompensationExpense82.982.180.982.387.293.694.694.794.792.990.288.288.190.191.791.591.291.590.989.690.289.089.588.183.482.381.680.278.076.474.070.479.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.011.210.98.07.65.76.06.46.35.95.14.55.74.94.05.15.14.63.54.33.94.23.73.63.42.92.62.52.42.22.21.73.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingExpense0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ResearchAndDevelopmentExpense


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value6.9016.7147.2824.0984.3482.7992.8412.8472.7532.6742.3112.1532.4482.1361.8882.0932.0671.7171.5931.6741.5591.5351.5561.1451.1860.9781.0780.7620.7620.6620.7540.7621.0621.1521.0780.98
Percentage of AllocatedShareBasedCompensationExpense22.622.422.319.721.620.618.919.218.319.518.420.117.719.319.719.219.118.520.919.019.819.421.217.718.819.222.217.117.617.819.124.822.522.222.520.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.03.13.01.91.91.31.21.31.21.21.01.01.11.00.91.11.10.90.80.90.90.90.90.70.80.70.70.50.50.50.60.60.81.00.90.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ResearchAndDevelopmentExpense0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:SellingAndMarketingExpense


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value4.6785.4285.4294.0043.6032.4782.6392.8262.8272.9112.4192.2342.8071.8251.4751.6861.7811.4390.8721.0550.9210.9010.7060.7680.8040.7010.5260.5620.5880.4710.5960.5120.5450.6980.7930.714
Percentage of AllocatedShareBasedCompensationExpense15.318.116.619.217.918.217.619.018.821.219.220.820.316.515.415.416.415.511.412.011.711.49.611.812.713.710.812.613.612.715.116.711.613.516.614.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.02.52.21.91.61.11.11.31.31.31.11.11.30.90.70.90.90.80.40.60.50.50.40.50.50.50.30.40.40.40.40.40.40.60.70.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:SellingAndMarketingExpense0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TechnologyService


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value1.7452.9473.6872.081.4190.3950.3530.3320.34
Percentage of AllocatedShareBasedCompensationExpense5.79.811.310.07.02.92.42.22.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.81.31.51.00.60.20.10.20.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:TechnologyService0.00.00.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value8.8596.496-7.2461011-4.2119.6990.31-0.8172.5363.62212-1.462531121011179.6327.2644.7297.6067.8176.9433.494.845108.5014.681119.396.7863.073.342.383-3.0033.0386.7869.598.8757.5497.5568.6676.78
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.93.0-3.04.95.0-1.94.10.1-0.41.21.66.1-0.712.414.36.25.66.49.05.34.02.84.34.94.42.43.27.36.13.78.87.35.42.72.81.9-2.73.27.110.09.58.68.810.48.4

Cost Of Goods And Services Sold

us-gaap:CostOfGoodsAndServicesSold

us-gaap:CostOfGoodsAndServicesSold


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value108103119981041041161011009910395958810287868592838379857473717768646366565653555550414239393636333130
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax47.147.249.345.945.246.949.046.044.746.046.745.544.543.147.244.845.346.646.645.546.447.248.546.747.048.950.647.146.449.649.243.945.146.346.445.045.843.444.441.541.941.542.240.039.340.2

us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService

blkb:Recurring


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value948810484918998878684837676698066
Percentage of CostOfGoodsAndServicesSold87.486.087.485.487.185.484.986.186.085.380.980.480.278.578.976.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax41.240.543.139.239.440.041.639.638.439.237.836.535.733.837.334.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax blkb:Recurring43.543.00.042.142.343.70.042.741.642.80.040.639.638.20.039.8

us-gaap:TechnologyService


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value13141514131517141414191818182120
Percentage of CostOfGoodsAndServicesSold12.614.012.614.612.914.615.113.914.014.719.119.619.821.521.123.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.96.66.26.75.86.87.46.46.36.88.98.98.89.39.910.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:TechnologyService109.5116.70.096.986.381.70.089.082.482.20.089.690.081.20.075.3

Cost Of Revenue

us-gaap:CostOfRevenue

us-gaap:CostOfRevenue


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value108103119981041041161011009910395958810287868592838379857473717768646366565653555550414239393636333130
Percentage of CostOfRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax47.147.249.345.945.246.949.046.044.746.046.745.544.543.147.244.845.346.646.645.546.447.248.546.747.048.950.647.146.449.649.243.945.146.346.445.045.843.444.441.541.941.542.240.039.340.2

General And Administrative Expense

us-gaap:GeneralAndAdministrativeExpense

us-gaap:GeneralAndAdministrativeExpense


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value32304534292528282827272428252723212119221919221817161615131212121212121421149.5828.9759.1769.2029.2727.9016.9018.397
Percentage of GeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.014.018.615.912.911.612.113.112.712.612.611.913.312.312.712.111.411.99.712.211.011.713.011.611.511.510.610.79.910.09.09.910.211.010.112.219.715.310.19.49.810.510.89.58.611.0

Gross Profit

us-gaap:GrossProfit

us-gaap:GrossProfit


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value12111512311612711812111912411611711411811611410810598105999689908482757576746468716862646759535255545149494845
Percentage of GrossProfit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax52.952.850.754.154.853.151.054.055.354.053.354.555.556.952.855.854.753.453.454.553.652.851.553.353.051.149.452.953.650.450.856.154.953.753.655.054.256.655.758.558.158.557.660.060.759.8

Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value8.4760.52-6.6726.632165.335-1.2624.939.873-2.95611117.417141615148.4882110117.6597.25512116.0395.4512146.6021316123.027.3424.629-3.4464.8101513101113109.645
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.70.2-2.83.17.02.4-0.52.24.4-1.45.25.53.57.07.47.97.54.610.85.96.34.54.17.87.24.13.68.510.75.29.912.910.02.66.13.8-3.15.111.316.315.011.912.915.813.512.7

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1.7450.6846.9491.7564.4960.696-2.5860.3642.733-1.8342.1510.3320.825-3.527-14.7032.7933.194-3.0234.0881.953.5982.6640.8444.4334.2721.7540.6341.8965.6262.7881.4977.0975.9090.3544.0721.804-1.1752.0414.3975.8115.0472.7823.9224.6364.1243.693
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.80.32.90.81.90.3-1.10.21.2-0.81.00.20.4-1.7-6.81.41.7-1.62.11.12.01.60.52.82.71.20.41.34.02.21.15.64.70.33.41.5-1.12.24.66.15.43.24.65.65.14.8

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value5.0545.1145.2383.9973.8934.1594.3855.1115.7995.3233.9384.144.3033.5173.4123.0923.2162.3772.5462.6412.7212.6752.6981.8161.8731.6861.9521.2721.3281.4591.2331.3941.4971.6942.2351.9761.4620.1910.0570.0590.060.024-0.0960.0450.0790.046
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.22.32.21.91.71.91.82.32.62.51.82.02.01.71.61.61.71.31.31.41.51.61.51.11.21.11.30.91.01.10.91.11.21.51.91.61.30.20.10.10.10.0-0.10.10.10.1

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value6.731-0.164-13.6214.876114.6391.3244.5667.14-1.1229.334116.5921730121111178.9347.8134.9956.4117.9117.0424.2854.816109.283.814119.3936.6232.6663.272.825-2.2712.7596.3519.7618.9287.5847.2418.5196.795.952
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.9-0.1-5.62.35.12.10.62.13.2-0.54.25.33.18.714.26.55.86.38.74.94.33.03.65.04.52.93.27.26.73.08.77.35.32.32.72.3-2.12.96.710.29.68.78.410.28.47.8

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value6.731-0.1644.876114.6394.5667.14-1.1229.334116.592173012111117117.8134.9956.4117.9117.0424.2854.816109.283.814119.3936.6232.6663.272.825-2.2712.7596.9479.7618.9287.584
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0127.9100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0109.4100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.9-0.12.35.12.12.13.2-0.54.25.33.18.714.26.55.86.38.76.24.33.03.65.04.52.93.27.26.73.08.77.35.32.32.72.3-2.12.97.310.29.68.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Operating Expenses

us-gaap:OperatingExpenses

us-gaap:OperatingExpenses


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value10810912310610711011711111111410398107989590888781868278807068676762585553535457546161484140404038363735
Percentage of OperatingExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax47.249.851.149.446.349.349.550.449.353.046.747.050.148.344.246.646.047.741.347.145.846.645.744.543.845.744.543.542.143.140.042.043.549.745.349.955.951.143.542.143.446.744.844.246.947.1

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value136.644-0.8510198.4243.5867.883132.1851415111718171610241314101013148.0127.58913159.2771418144.5949.8756.185-1.8775.252101513101013119.668
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.73.0-0.44.78.43.81.53.66.01.06.67.55.38.68.69.28.75.812.17.47.96.25.88.89.35.55.09.311.57.310.814.111.44.08.25.1-1.75.511.216.414.711.812.715.813.812.7

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

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value1783000.02511000.06525000.04661000.0-887000.0-5728000.07962000.0-3893000.0-6018000.04590000.0-3885000.01047000.0-8817000.06437000.0-476000.0-188000.0-379000.0100000.063000.0289000.0-431000.0403000.0416000.0168000.0-196000.0-326000.0323000.0-232000.0-385000.0555000.0-60000.094000.0-266000.0285000.0-22000.0-123000.0-168000.0279000.0-232000.0-273000.0
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.81.12.72.2-0.4-2.63.3-1.8-2.72.1-1.80.5-4.13.2-0.2-0.1-0.20.10.00.2-0.20.20.20.1-0.1-0.20.2-0.2-0.30.4-0.00.1-0.20.2-0.0-0.1-0.20.3-0.2-0.3

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax us-gaap:OtherComprehensiveIncomeLocation

us-gaap:AccumulatedTranslationAdjustment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value1783000.02511000.06525000.04661000.0-887000.0-5728000.07962000.0-3893000.0-6018000.04590000.0-3885000.01047000.0-8817000.06437000.0-476000.0-188000.0-379000.0100000.063000.0289000.0-431000.0403000.0416000.0168000.0-196000.0-326000.0323000.0-232000.0-385000.0555000.0-60000.094000.0-266000.0285000.0
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.81.12.72.2-0.4-2.63.3-1.8-2.72.1-1.80.5-4.13.2-0.2-0.1-0.20.10.00.2-0.20.20.20.1-0.1-0.20.2-0.2-0.30.4-0.00.1-0.20.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value2128000.06660000.05604000.0-336000.0-8850000.0-4256000.0-7957000.03658000.0-5712000.01613000.0-8052000.07516000.0364000.0-455000.0-383000.0282000.0485000.0698000.0-549000.0-266000.01195000.0-94000.0-99000.0-795000.029000.0236000.0-779000.0867000.024000.0-3000.0163000.0404000.070000.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.93.02.6-0.1-4.0-1.9-3.51.7-2.60.8-3.83.70.2-0.2-0.20.20.20.4-0.3-0.20.7-0.1-0.1-0.50.00.2-0.60.70.0-0.00.10.30.1

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value2128000.06660000.05604000.0-336000.0-8850000.0-4256000.0-7957000.03658000.0-5712000.01613000.0-8052000.07516000.0364000.0-455000.0-383000.0282000.0485000.0698000.0-549000.0-266000.01195000.0-94000.0-99000.0-795000.029000.0236000.0-779000.0867000.024000.0-3000.0163000.0404000.070000.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.93.02.6-0.1-4.0-1.9-3.51.7-2.60.8-3.83.70.2-0.2-0.20.20.20.4-0.3-0.20.7-0.1-0.1-0.50.00.2-0.60.70.0-0.00.10.30.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value410000.0-1162000.0-845000.0-225000.0520000.0548000.0-839000.0911000.01656000.0-472000.0349000.0-1090000.069000.0467000.0215000.0304000.0-224000.0-239000.0-183000.0-226000.0-450000.0184000.0695000.0-295000.0-200000.029000.0225000.0-236000.0-116000.0-140000.0-309000.0103000.0-326000.0382000.0-140000.0-308000.0168000.0-107000.0216000.069000.02000.053000.0-185000.03000.0
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.2-0.5-0.3-0.10.20.2-0.40.40.7-0.20.2-0.50.00.20.10.2-0.1-0.1-0.1-0.1-0.30.10.4-0.2-0.10.00.2-0.2-0.1-0.1-0.20.1-0.30.3-0.1-0.30.2-0.10.20.10.00.1-0.20.0

Research And Development Expense

us-gaap:ResearchAndDevelopmentExpense

us-gaap:ResearchAndDevelopmentExpense


Research
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value30292722242425252528232425252222222221222222222020212219181616161616171914131112121111111110
Percentage of ResearchAndDevelopmentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.213.311.310.610.711.210.911.711.513.210.511.611.812.710.311.411.912.411.012.312.513.512.912.912.914.515.013.613.012.912.012.913.114.214.415.713.514.012.012.812.913.713.014.114.514.3

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value229219242215231223237221225215221209213204216194192183198183180169175158156146152144139127134127125115120122110949595938785838076
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService

blkb:ContractualRecurring


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value151146148147
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax65.967.063.966.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax65.967.063.966.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax blkb:ContractualRecurring100.0100.0100.0100.0

blkb:Recurring


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value216206229200216204219205208198199188192180190167
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax94.694.394.693.193.291.692.492.892.491.890.490.090.288.687.986.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax94.694.394.693.193.291.692.492.892.491.890.490.090.288.687.986.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax blkb:Recurring100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

blkb:TransactionalRecurring


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value65596857
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax28.727.329.325.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax28.727.329.325.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax blkb:TransactionalRecurring100.0100.0100.0100.0

us-gaap:TechnologyService


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value12121314151818151717212020232626
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.45.75.46.96.88.47.67.27.68.29.610.09.811.412.313.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.45.75.46.96.88.47.67.27.68.29.610.09.811.412.313.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:TechnologyService100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementBusinessSegments

blkb:EnterpriseMarketsGroup


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value89105919898104969695989389869790
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax40.843.442.642.343.943.843.542.944.144.744.541.942.544.946.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax40.843.442.642.343.943.843.542.944.144.744.541.942.544.946.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax blkb:EnterpriseMarketsGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

blkb:GeneralMarketsGroup


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value9310090909510092939210294898810194
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax42.641.342.139.042.742.341.641.342.946.345.041.843.246.648.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax42.641.342.139.042.742.341.641.342.946.345.041.843.246.648.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax blkb:GeneralMarketsGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

blkb:InternationalMarketsGroup


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value5036363243303032352817213428169.914
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.816.615.115.218.613.512.614.815.813.08.010.216.214.27.85.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.816.615.115.218.613.512.614.815.813.08.010.216.214.27.85.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax blkb:InternationalMarketsGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

blkb:USMarketsGroup


Revenue
Period End2021-06-302020-06-30
Value179182
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax78.278.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax78.278.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax blkb:USMarketsGroup100.0100.0

us-gaap:AllOtherSegments


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-0.024-0.0450.5120.1410.172-0.0363.1010.090.0510.0282.0960.4130.0920.0662.125-0.544
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.0-0.00.20.10.1-0.01.30.00.00.00.90.20.00.01.0-0.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.0-0.00.20.10.1-0.01.30.00.00.00.90.20.00.01.0-0.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AllOtherSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementGeographical

blkb:Othercountries


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value12111413131515
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.65.36.55.76.26.87.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.65.36.55.76.26.87.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax blkb:Othercountries100.0100.0100.0100.0100.0100.0100.0

country:GB


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value242220182915141719
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.710.28.48.512.77.16.27.98.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.710.28.48.512.77.16.27.98.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:GB100.0100.0100.0100.0100.0100.0100.0100.0100.0

country:US


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
Value192185206182189193208188190188193178179175190174172168
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax83.784.685.085.081.686.787.585.384.487.287.385.384.086.287.989.889.892.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax83.784.685.085.081.686.787.585.384.487.287.385.384.086.287.989.889.892.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:US100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value229219242215231223237221225215221209213204216195192183198183180169175158156146152144139127134127125115120122110949595938785838076
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.6100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Selling And Marketing Expense

us-gaap:SellingAndMarketingExpense

us-gaap:SellingAndMarketingExpense


Selling
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value45485048515858555555494948454444424240403935343129282827262524232424242624201818191917161916
Percentage of SellingAndMarketingExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax19.822.320.922.522.426.324.525.124.425.722.523.422.722.320.322.722.423.020.222.221.821.019.519.619.019.418.818.719.019.718.518.619.521.120.321.522.021.519.219.620.422.220.720.423.621.5

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value19031684204416511896167019921710187317021615140415711367175911461338111113101098118510711223844855843943702688651706649653642705665668369392371349322328304
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value149812681618120914861290159613281501133612411041122310231452870107686310628669638581013640660655757518515487545493499492558517521225252226212193205188
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets78.775.379.273.278.377.280.177.780.178.576.974.177.874.882.675.980.477.781.178.881.380.182.875.877.277.780.373.874.974.877.175.976.576.779.177.878.161.164.361.060.759.962.561.8

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value19031684204416511896167019921710187317021615140415711367175911461338111113101098118510711223844855843943702688651706649653642705665668369392371349322328304
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value40541642644141038039638137236537336334834430627626224824723222121321020319518718518417216416115615314914714714614314014513712912311690113
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets21.324.720.826.821.722.819.922.319.921.523.125.922.225.217.424.119.622.318.921.218.719.917.224.222.822.319.726.225.125.222.924.123.523.320.922.221.938.935.739.039.340.137.538.20.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value6.2914.163-2.497-8.872-14.476-14.14-5.29-13.665-9.409-1.452-5.110.602-1.0117.041-0.649-1.013-0.558-0.175-0.457-0.942-1.64-1.091-0.825-2.02-1.926-1.827-1.032-1.061-1.297-0.518-1.385-1.409-1.406-1.569-1.973-2.043-1.601-0.869-1.148-0.687-0.516-0.463-0.512-0.201-0.8990.137
Percentage of StockholdersEquity1.61.0-0.6-2.0-3.5-3.7-1.3-3.6-2.5-0.4-1.40.2-0.32.0-0.2-0.4-0.2-0.1-0.2-0.4-0.7-0.5-0.4-1.0-1.0-1.0-0.6-0.6-0.7-0.3-0.9-0.9-0.9-1.0-1.3-1.4-1.1-0.6-0.8-0.5-0.4-0.4-0.4-0.2-1.00.1
Percentage of Assets0.30.2-0.1-0.5-0.8-0.8-0.3-0.8-0.5-0.1-0.30.0-0.10.5-0.0-0.1-0.0-0.0-0.0-0.1-0.1-0.1-0.1-0.2-0.2-0.2-0.1-0.2-0.2-0.1-0.2-0.2-0.2-0.2-0.3-0.3-0.2-0.2-0.3-0.2-0.1-0.1-0.2-0.10.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value605574544512491471457442427412399386375362351341330319310302294285276265257251245237230225220216213208203198194182175171167162158134116105
Percentage of StockholdersEquity149.4138.2127.9115.9119.6123.9115.4116.1114.8112.9106.8106.3108.0105.2114.4123.3126.1128.9125.4130.1133.0133.9131.2129.9132.1133.8132.1128.8133.5136.9136.7138.4139.3139.5137.9134.7132.4126.9125.3117.9121.8125.7128.7116.0129.193.4
Percentage of Assets31.834.126.731.025.928.223.025.922.824.324.727.523.926.520.029.824.728.823.727.624.926.622.631.430.229.826.033.733.634.531.233.432.732.528.929.929.149.444.746.147.950.448.344.30.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value0.0620.0620.0610.0610.0610.0610.060.060.060.060.0590.0590.0590.0590.0590.0590.0580.0580.0580.0580.0580.0570.0570.0570.0570.0570.0560.0560.0560.0560.0560.0550.0550.0550.0550.0540.0540.0540.0540.0540.0540.0530.0530.0520.0510.05
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value24323623625024523323423924023924624223723619517016315815214113613413413413113013113212712312511911511411611912112913113613212812611510592
Percentage of StockholdersEquity60.056.855.556.759.761.459.262.864.665.565.966.868.268.863.761.662.563.961.760.661.563.064.065.767.569.470.871.873.775.277.676.175.176.279.180.682.989.994.294.296.199.5102.699.8116.182.0
Percentage of Assets12.814.011.615.212.914.011.814.012.814.115.317.315.117.311.114.912.214.311.712.811.512.511.015.915.415.514.018.818.519.017.718.317.617.816.617.918.235.033.636.837.839.938.538.10.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value-449.877-399.583-353.091-311.951-311.661-310.447-290.665-287.163-286.644-285.284-266.884-266.597-264.383-261.71-239.199-234.329-231.881-230.065-215.237-210.357-207.898-205.377-199.861-193.168-192.665-192.038-190.44-184.299-184.173-183.882-183.288-178.001-174.206-171.733-170.898-168.239-167.646-167.205-166.226-161.966-161.596-161.288-161.186-134.382-130.594-85.487
Percentage of StockholdersEquity-111.0-96.0-82.9-70.6-75.9-81.6-73.3-75.3-76.9-78.0-71.4-73.3-75.9-76.0-77.9-84.6-88.5-92.7-86.9-90.4-93.8-96.4-94.9-94.7-98.7-102.2-102.4-100.1-106.5-111.8-113.5-113.6-113.6-114.7-115.7-113.9-114.3-116.3-118.7-111.7-117.5-124.9-131.0-115.7-144.3-75.6
Percentage of Assets-23.6-23.7-17.3-18.9-16.4-18.6-14.6-16.8-15.3-16.8-16.5-19.0-16.8-19.1-13.6-20.4-17.3-20.7-16.4-19.1-17.5-19.2-16.3-22.9-22.5-22.8-20.2-26.2-26.8-28.2-25.9-27.4-26.7-26.7-24.2-25.3-25.1-45.3-42.3-43.6-46.2-50.0-49.1-44.20.00.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value691465819412667428734445600413597375536359794307487318507292371253399209215199287210192181229168165149213176174164187171147121143109
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets36.327.640.125.035.225.736.926.132.024.337.026.734.126.345.126.836.428.638.826.631.423.732.624.825.223.730.530.027.927.832.526.025.323.330.326.526.244.547.946.242.337.643.636.1

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value28273530302431293225302529252917171316161512151713131453243211167.38.449132521455251332427261323221614
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.51.61.71.91.61.51.61.71.71.51.91.81.91.81.71.51.31.21.31.51.31.11.32.11.51.61.67.73.65.01.72.61.11.31.93.83.212.513.414.09.67.58.50.00.00.07.50.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value462282644234452257577272386244449205324195640370
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets24.316.831.514.223.915.429.015.920.614.427.814.620.714.336.428.3

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value11983959612989889013190869513088961001299088861077880788774776984636671856975838963626268505950
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.34.94.75.96.85.34.55.37.05.35.46.88.36.55.58.89.78.16.87.89.17.36.59.310.28.98.29.812.39.79.511.013.110.810.712.513.317.216.016.919.615.618.216.5

Prepaid Expense And Other Assets Current

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PrepaidExpenseAndOtherAssetsCurrent


Prepaid
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value1039878768381677576735968756856505149485253484839413940302829303032274037443231302933
Percentage of PrepaidExpenseAndOtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.45.83.84.64.44.83.44.44.14.33.74.94.85.03.24.43.84.43.74.74.54.54.04.74.94.64.34.44.14.64.34.74.94.35.85.66.68.87.98.38.510.3

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2020-12-312020-08-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value17575139147145146134117101896454
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.60.07.09.18.311.211.012.414.412.716.416.6

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

blkb:Blkb_BuildingSystemsMember


Property
Period End2020-08-31
Value4.393
Percentage of PropertyPlantAndEquipmentGross5.8
Percentage of Assets0.0
Percentage of Assets blkb:Blkb_BuildingSystemsMember0.0

blkb:ComputerSoftware


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value2335343431262419
Percentage of PropertyPlantAndEquipmentGross13.225.623.223.421.619.620.619.7
Percentage of Assets1.11.82.11.92.42.22.62.8
Percentage of Assets blkb:ComputerSoftware0.00.00.00.00.00.00.00.0

us-gaap:BuildingImprovements


Property
Period End2020-12-312020-08-31
Value9.9424.393
Percentage of PropertyPlantAndEquipmentGross5.75.8
Percentage of Assets0.50.0
Percentage of Assets us-gaap:BuildingImprovements0.00.0

us-gaap:ComputerEquipment


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value5667757681776759563930
Percentage of PropertyPlantAndEquipmentGross32.148.050.852.355.657.757.358.563.761.656.2
Percentage of Assets2.73.44.64.36.26.37.18.48.110.19.3
Percentage of Assets us-gaap:ComputerEquipment0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ConstructionInProgress


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value3.4350.2130.2333.1022.9722.3370.5870.0931.8543.8361.332
Percentage of PropertyPlantAndEquipmentGross2.00.20.22.12.01.70.50.12.16.02.4
Percentage of Assets0.20.00.00.20.20.20.10.00.31.00.4
Percentage of Assets us-gaap:ConstructionInProgress0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Equipment


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value2.8654.5124.2432.7282.4033.8683.683.712.432.8093.66
Percentage of PropertyPlantAndEquipmentGross1.63.22.91.91.62.93.13.72.74.46.7
Percentage of Assets0.10.20.30.20.20.30.40.50.30.71.1
Percentage of Assets us-gaap:Equipment0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FurnitureAndFixtures


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value2.7967.8237.0047.2657.9897.1467.1826.9875.4865.0284.961
Percentage of PropertyPlantAndEquipmentGross1.65.64.75.05.55.36.16.96.17.89.1
Percentage of Assets0.10.40.40.40.60.60.81.00.81.31.5
Percentage of Assets us-gaap:FurnitureAndFixtures0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:LeaseholdImprovements


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value6.044242622191714115.1043.3942.923
Percentage of PropertyPlantAndEquipmentGross3.417.418.215.313.612.812.411.25.75.35.4
Percentage of Assets0.31.21.71.31.51.41.51.60.70.90.9
Percentage of Assets us-gaap:LeaseholdImprovements0.00.00.00.00.00.00.00.00.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value7010410710395816651402931
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.45.26.75.97.36.77.17.45.77.69.6

Amortization Of Intangible Assets

us-gaap:AmortizationOfIntangibleAssets

us-gaap:AmortizationOfIntangibleAssets


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value567000.0549000.0696000.0749000.0729000.0741000.02085000.0703000.01152000.01376000.01137000.01237000.01201000.01269000.01107000.0734000.0739000.0691000.0693000.0687000.0708000.0752000.0695000.0524000.0524000.0488000.0174000.0624000.0418000.0587000.0611000.0614000.0636000.0678000.0689000.0690000.0530000.0197000.0251000.0249000.0245000.0233000.0211000.0195000.0196000.0196000.0
Percentage of AmortizationOfIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value10410510510936353537393840424444424345475052545452494847504847474948494849424334342825232222
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.56.25.16.61.92.11.82.22.12.32.53.12.83.32.43.83.44.23.84.84.65.14.35.85.75.65.36.86.97.47.07.47.67.57.06.46.69.48.87.77.37.47.07.4

us-gaap:PropertyPlantAndEquipmentNet us-gaap:StatementGeographical

country:US


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value10332373947494747473322
Percentage of PropertyPlantAndEquipmentNet98.091.792.592.594.894.495.195.697.596.796.4
Percentage of Assets5.01.62.32.23.64.15.16.76.88.56.7
Percentage of Assets country:US0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NonUs


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value2.0542.943.0163.1722.606
Percentage of PropertyPlantAndEquipmentNet2.08.37.57.55.2
Percentage of Assets0.10.10.20.20.2
Percentage of Assets us-gaap:NonUs0.00.00.00.00.0

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value63763763563263063163463063263454554754753753047247243843843843643543634534534834927427726426426426426526526326290908989887673
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets33.537.831.138.333.237.831.836.933.737.333.839.034.839.330.141.235.339.433.439.936.840.735.741.040.441.337.039.040.340.637.440.740.541.437.639.539.324.423.024.025.627.623.224.3

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value26026927728429230331732734035529130531730631425226324325326427328429420421222022914715013714314915516216817317742444042443842
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets13.716.013.617.215.418.116.019.118.220.918.121.720.222.417.922.019.721.919.424.123.126.524.124.324.926.224.321.021.921.120.323.023.825.323.826.126.611.611.410.912.113.911.713.8

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
Value22202230951001041101071100.0
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets1.21.21.11.85.06.05.26.55.76.50.0

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value707472726866656466676565646224212422221821202135322626222019191817169.8449.2138.4588.5266.0875.7165.4942.6142.5790.468
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.74.43.64.43.64.03.33.83.54.04.04.74.14.61.41.91.82.11.71.61.81.91.84.23.83.22.83.23.03.12.72.82.72.61.41.41.32.31.61.51.60.80.80.2

Other Assets

us-gaap:OtherAssets

us-gaap:OtherAssets


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value10109.5786.494108.6598.0511211118.931119.4248.0227.1485.6646.6997.1367.9667.27511109.2078.1166.3411119.67414131111
Percentage of OtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.60.50.40.60.50.40.70.60.70.60.80.60.60.40.40.60.60.70.61.41.31.10.90.91.61.81.42.22.11.71.6

Contract With Customer Liability Current

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:ContractWithCustomerLiabilityCurrent


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value339290312322332288314320327281295275
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets17.817.215.319.517.517.315.818.817.516.518.315.6

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value8776461013620858622988677790601805566693504976488641465680454522397566353353315421306293267356287272250311262413213240216198183195180
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets46.138.449.637.645.337.349.639.642.235.349.940.344.136.955.542.647.941.951.941.444.137.146.341.941.437.444.643.542.641.050.544.341.639.044.239.561.957.961.158.356.957.059.759.2

Long Term Debt Current

us-gaap:LongTermDebtCurrent

us-gaap:LongTermDebtCurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value121212109.194107.57.57.57.57.58.5768.5768.5768.5768.5767.54.3754.3754.3754.3754.3754.3754.3754.3754.3754.3754.3724.3754.37517121110.010.010.01650.0
Percentage of LongTermDebtCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.70.80.60.60.50.60.40.40.40.40.50.60.50.60.50.70.60.40.30.40.40.40.40.50.50.50.50.60.60.72.41.91.71.61.41.524.70.0

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value7.8567.1919.359161919191916160.0
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.40.40.51.01.01.21.01.10.91.00.0

Long Term Debt

us-gaap:LongTermDebt

us-gaap:LongTermDebt


Long
Period End2021-06-302021-03-312020-12-312020-09-302014-06-302014-03-312014-02-282013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value547553534509173175175152173195211215245259
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets28.832.926.130.925.326.90.021.626.729.932.830.536.838.8

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent

us-gaap:LongTermDebtNoncurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value531537518497478520459495553576379416471458429329380351338370398417404237253281276166167168135161184201205235940.0
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets27.931.925.330.225.231.223.129.029.633.823.529.730.033.524.428.728.431.725.833.733.739.033.028.129.633.429.323.724.425.919.224.828.231.329.135.314.20.0

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxLiabilitiesNet


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value565454464543444748484447484837394029
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.03.22.62.82.42.62.22.82.62.82.73.43.13.52.13.43.02.3

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value9.3399.439101211105.7426.1775.8024.3029.3887.0277.4747.5165.6327.7997.5727.8018.5337.4678.1028.07.6237.0256.7477.4457.4376.147.9946.2986.6555.855.6324.3665.2814.5183.1372.3572.7752.8542.6053.2882.4191.72
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.60.50.80.60.70.30.40.30.30.60.50.50.50.30.70.60.70.70.70.70.70.60.80.80.90.80.91.21.00.90.90.90.70.70.70.50.60.70.80.71.00.70.6

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
Value171517258691951001001020.0
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.90.90.81.64.65.54.85.95.36.00.0

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-312020-09-30
Value5.79616
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0100.0
Percentage of Assets0.31.0

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-312020-09-30
Value4.41712
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0100.0
Percentage of Assets0.20.7

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-312020-09-30
Value3211000.09107000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0100.0
Percentage of Assets0.20.6

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-312020-09-30
Value1905000.02491000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0100.0
Percentage of Assets0.10.2

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-312020-09-30
Value3847000.0535000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0100.0
Percentage of Assets0.20.0

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2020-12-312020-09-302019-12-312019-09-302019-06-302019-03-312019-01-01
Value2642115119116119121
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.32.65.87.06.27.00.0

us-gaap:OperatingLeaseLiability us-gaap:BalanceSheetLocation

blkb:Accruedexpensesandothercurrentliabilities


Operating
Period End2020-12-312019-12-31
Value9.35919
Percentage of OperatingLeaseLiability35.017.1
Percentage of Assets0.51.0
Percentage of Assets blkb:Accruedexpensesandothercurrentliabilities0.00.0

blkb:OperatingLeaseLiabilitiesNetOfCurrentPortion


Operating
Period End2020-12-312019-12-31
Value1795
Percentage of OperatingLeaseLiability65.082.9
Percentage of Assets0.84.8
Percentage of Assets blkb:OperatingLeaseLiabilitiesNetOfCurrentPortion0.00.0

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-312020-09-30
Value2945
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0100.0
Percentage of Assets1.42.8

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2020-12-312020-09-30
Value2813000.03628000.0
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0100.0
Percentage of Assets0.10.2

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value40541642644141038039638137236537336334834430627626224824723222121321020319518718518417216416115615314914714714614314014513712912311690113
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets21.324.720.826.821.722.819.922.319.921.523.125.922.225.217.424.119.622.318.921.218.719.917.224.222.822.319.726.225.125.222.924.123.523.320.922.221.938.935.739.039.340.137.538.20.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value6.2914.163-2.497-8.872-14.476-14.14-5.29-13.665-9.409-1.452-5.110.602-1.0117.041-0.649-1.013-0.558-0.175-0.457-0.942-1.64-1.091-0.825-2.02-1.926-1.827-1.032-1.061-1.297-0.518-1.385-1.409-1.406-1.569-1.973-2.043-1.601-0.869-1.148-0.687-0.516-0.463-0.512-0.201-0.8990.137
Percentage of StockholdersEquity1.61.0-0.6-2.0-3.5-3.7-1.3-3.6-2.5-0.4-1.40.2-0.32.0-0.2-0.4-0.2-0.1-0.2-0.4-0.7-0.5-0.4-1.0-1.0-1.0-0.6-0.6-0.7-0.3-0.9-0.9-0.9-1.0-1.3-1.4-1.1-0.6-0.8-0.5-0.4-0.4-0.4-0.2-1.00.1
Percentage of Assets0.30.2-0.1-0.5-0.8-0.8-0.3-0.8-0.5-0.1-0.30.0-0.10.5-0.0-0.1-0.0-0.0-0.0-0.1-0.1-0.1-0.1-0.2-0.2-0.2-0.1-0.2-0.2-0.1-0.2-0.2-0.2-0.2-0.3-0.3-0.2-0.2-0.3-0.2-0.1-0.1-0.2-0.10.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value605574544512491471457442427412399386375362351341330319310302294285276265257251245237230225220216213208203198194182175171167162158134116105
Percentage of StockholdersEquity149.4138.2127.9115.9119.6123.9115.4116.1114.8112.9106.8106.3108.0105.2114.4123.3126.1128.9125.4130.1133.0133.9131.2129.9132.1133.8132.1128.8133.5136.9136.7138.4139.3139.5137.9134.7132.4126.9125.3117.9121.8125.7128.7116.0129.193.4
Percentage of Assets31.834.126.731.025.928.223.025.922.824.324.727.523.926.520.029.824.728.823.727.624.926.622.631.430.229.826.033.733.634.531.233.432.732.528.929.929.149.444.746.147.950.448.344.30.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value0.0620.0620.0610.0610.0610.0610.060.060.060.060.0590.0590.0590.0590.0590.0590.0580.0580.0580.0580.0580.0570.0570.0570.0570.0570.0560.0560.0560.0560.0560.0550.0550.0550.0550.0540.0540.0540.0540.0540.0540.0530.0530.0520.0510.05
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value24323623625024523323423924023924624223723619517016315815214113613413413413113013113212712312511911511411611912112913113613212812611510592
Percentage of StockholdersEquity60.056.855.556.759.761.459.262.864.665.565.966.868.268.863.761.662.563.961.760.661.563.064.065.767.569.470.871.873.775.277.676.175.176.279.180.682.989.994.294.296.199.5102.699.8116.182.0
Percentage of Assets12.814.011.615.212.914.011.814.012.814.115.317.315.117.311.114.912.214.311.712.811.512.511.015.915.415.514.018.818.519.017.718.317.617.816.617.918.235.033.636.837.839.938.538.10.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value-449.877-399.583-353.091-311.951-311.661-310.447-290.665-287.163-286.644-285.284-266.884-266.597-264.383-261.71-239.199-234.329-231.881-230.065-215.237-210.357-207.898-205.377-199.861-193.168-192.665-192.038-190.44-184.299-184.173-183.882-183.288-178.001-174.206-171.733-170.898-168.239-167.646-167.205-166.226-161.966-161.596-161.288-161.186-134.382-130.594-85.487
Percentage of StockholdersEquity-111.0-96.0-82.9-70.6-75.9-81.6-73.3-75.3-76.9-78.0-71.4-73.3-75.9-76.0-77.9-84.6-88.5-92.7-86.9-90.4-93.8-96.4-94.9-94.7-98.7-102.2-102.4-100.1-106.5-111.8-113.5-113.6-113.6-114.7-115.7-113.9-114.3-116.3-118.7-111.7-117.5-124.9-131.0-115.7-144.3-75.6
Percentage of Assets-23.6-23.7-17.3-18.9-16.4-18.6-14.6-16.8-15.3-16.8-16.5-19.0-16.8-19.1-13.6-20.4-17.3-20.7-16.4-19.1-17.5-19.2-16.3-22.9-22.5-22.8-20.2-26.2-26.8-28.2-25.9-27.4-26.7-26.7-24.2-25.3-25.1-45.3-42.3-43.6-46.2-50.0-49.1-44.20.00.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value62000.062000.061000.061000.061000.061000.060000.060000.060000.060000.059000.059000.059000.059000.059000.059000.058000.058000.058000.058000.058000.057000.057000.057000.057000.057000.056000.056000.056000.056000.056000.055000.055000.055000.055000.054000.054000.054000.054000.054000.054000.053000.053000.052000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value605574544512491471457442427412399386375362351341330319310302294285276265257251245237230225220216213208203198194182175171167162158134
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets31.834.126.731.025.928.223.025.922.824.324.727.523.926.520.029.824.728.823.727.624.926.622.631.430.229.826.033.733.634.531.233.432.732.528.929.929.149.444.746.147.950.448.344.3

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value243236236250245233234239240239246242237236195170163158152141136134134134131130131132127123125119115114116119121129131136132128126115
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets12.814.011.615.212.914.011.814.012.814.115.317.315.117.311.114.912.214.311.712.811.512.511.015.915.415.514.018.818.519.017.718.317.617.816.617.918.235.033.636.837.839.938.538.1

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value6291000.04163000.0-2497000.0-8872000.0-14476000.0-14140000.0-5290000.0-13665000.0-9409000.0-1452000.0-5110000.0602000.0-1011000.07041000.0-649000.0-1013000.0-558000.0-175000.0-457000.0-942000.0-1640000.0-1091000.0-825000.0-2020000.0-1926000.0-1827000.0-1032000.0-1061000.0-1297000.0-518000.0-1385000.0-1409000.0-1406000.0-1569000.0-1973000.0-2043000.0-1601000.0-869000.0-1148000.0-687000.0-516000.0-463000.0-512000.0-201000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.2-0.1-0.5-0.8-0.8-0.3-0.8-0.5-0.1-0.30.0-0.10.5-0.0-0.1-0.0-0.0-0.0-0.1-0.1-0.1-0.1-0.2-0.2-0.2-0.1-0.2-0.2-0.1-0.2-0.2-0.2-0.2-0.3-0.3-0.2-0.2-0.3-0.2-0.1-0.1-0.2-0.1

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:OtherComprehensiveIncomeLocation

us-gaap:AccumulatedTranslationAdjustment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value4898000.03115000.0604000.0-5921000.0-10582000.0-9695000.0-3967000.0-11929000.0-8036000.0-2018000.0-6608000.0-2751000.0-3798000.05019000.0-1425000.0-949000.0-761000.0-382000.0-482000.0-545000.0-834000.0-403000.0-806000.0-1222000.0-1390000.0-1194000.0-868000.0-1192000.0-959000.0-574000.0-1129000.0-1069000.0-1163000.0-897000.0-1182000.0-1148000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax77.974.8-24.266.773.168.675.087.385.4139.0129.3-457.0375.771.3219.693.7136.4218.3105.557.950.936.997.760.572.265.484.1112.373.9110.881.575.982.757.259.9100.0
Percentage of Assets0.30.20.0-0.4-0.6-0.6-0.2-0.7-0.4-0.1-0.4-0.2-0.20.4-0.1-0.1-0.1-0.0-0.0-0.0-0.1-0.0-0.1-0.1-0.2-0.1-0.1-0.2-0.1-0.1-0.2-0.2-0.2-0.1-0.2-0.3
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CashFlowHedging


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value1393000.01048000.0-3101000.0-2951000.0-3894000.0-4445000.0-1323000.0-1736000.0-1373000.0566000.01498000.03353000.02787000.02022000.0776000.0-64000.0203000.0207000.025000.0-397000.0-806000.0-688000.0-19000.0-798000.0-536000.0-633000.0-164000.0131000.0-338000.056000.0-256000.0-340000.0-243000.0-672000.0-791000.00
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax22.125.2124.233.326.931.425.012.714.6-39.0-29.3557.0-275.728.7-119.66.3-36.4-118.3-5.542.149.163.12.339.527.834.615.9-12.326.1-10.818.524.117.342.840.1-0.0
Percentage of Assets0.10.1-0.2-0.2-0.2-0.3-0.1-0.1-0.10.00.10.20.20.10.0-0.00.00.00.0-0.0-0.1-0.1-0.0-0.1-0.1-0.1-0.00.0-0.00.0-0.0-0.1-0.0-0.1-0.10.0
Percentage of Assets us-gaap:CashFlowHedging0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Treasury Stock Value

us-gaap:TreasuryStockValue

us-gaap:TreasuryStockValue


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value449399353311311310290287286285266266264261239234231230215210207205199193192192190184184183183178174171170168167167166161161161161134
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets23.623.717.318.916.418.614.616.815.316.816.519.016.819.113.620.417.320.716.419.117.519.216.322.922.522.820.226.226.828.225.927.426.726.724.225.325.145.342.343.646.250.049.144.2

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

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value3030202013141513121013119.57610109.2947.6339.2187.8717.9167.3476.4866.3115.1024.8534.4484.333.7143.9423.0734.7175.1784.7854.7485.8713.8363.9713.5873.533.796
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value3029202013141513121013119.56510109.2687.6099.2117.847.8967.3316.4876.2795.0714.8234.4384.3233.6843.9113.0064.75.1484.7724.7095.8423.8283.9413.573.5073.778
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue99.9100.099.999.999.799.999.999.899.999.899.899.799.999.999.999.799.799.999.699.799.8100.099.599.499.499.899.899.299.297.899.699.499.799.299.599.899.299.599.399.5
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value0.0210.010.0240.030.0410.0140.0190.0330.0070.0220.0270.030.0110.0090.010.0260.0240.0070.0310.020.016-0.0010.0320.0310.030.010.0070.030.0310.0670.0170.030.0130.0390.0290.0080.030.0170.0230.018
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue0.10.00.10.10.30.10.10.20.10.20.20.30.10.10.10.30.30.10.40.30.2-0.00.50.60.60.20.20.80.82.20.40.60.30.80.50.20.80.50.70.5
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value6930387161-24.503607755-10.01163715411526841125362370.1042937434.231164031132940241229286.9643.985172920177.04524177.328
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax30.413.716.033.326.7-11.025.434.824.4-4.628.734.125.65.824.435.421.77.027.034.021.00.116.523.827.72.911.027.922.810.421.731.719.611.224.223.56.34.218.731.321.820.18.229.021.59.6

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-13218000.0-12772000.0-13983000.0-30298000.0-13762000.0-13804000.0-14256000.0-14496000.0-16610000.0-121860000.0-12937000.0-13605000.0-53339000.0-17910000.0-106640000.0-8712000.0-60282000.0-9243000.0-9516000.0-13707000.0-10572000.0-13635000.0-196240000.0-11952000.0-8867000.0-5650000.0-163480000.0-5863000.0-34609000.0-7407000.0-7505000.0-4067000.0-4655000.0-7932000.0-5803000.0-4788000.0-285600000.0-6297000.0-13140000.0-5139000.0-6511000.0-16948000.0-5107000.0-3836000.0-4082000.0-5199000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-5.8-5.8-5.8-14.1-5.9-6.2-6.0-6.6-7.4-56.5-5.8-6.5-25.0-8.8-49.1-4.5-31.4-5.0-4.8-7.5-5.9-8.1-111.6-7.5-5.7-3.8-107.0-4.1-24.8-5.8-5.6-3.2-3.7-6.9-4.8-3.9-259.2-6.6-13.8-5.4-7.0-19.4-6.0-4.6-5.1-6.8

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value122-379.619383-261.208146-278.944255-175.472105-74.431195-178.729129-438.925323-60.59222-6.776-43.37-47.324-23.3989.546165-21.209-33.6460.075107-4.873-5.09214-26.365-27.185-20.826-9.912-34.942-20.156254-4.58-4.823-5.113-4.486-4.841-0.379-7.825-23.034-1.51
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax53.4-173.2157.9-121.563.1-124.7107.6-79.446.7-34.588.5-85.360.8-215.0149.3-31.211.5-3.7-21.9-25.9-13.05.693.9-13.4-21.50.170.2-3.4-3.711.5-19.5-21.3-16.6-8.6-29.1-16.5230.7-4.8-5.1-5.4-4.8-5.5-0.4-9.4-28.6-2.0

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value179-362.058410-218.223195-320.073305-114.647142-205.263244-119.576128-444.369484-129.063113-199.228224
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax78.4-165.2169.3-101.584.2-143.1128.3-51.863.0-95.1110.6-57.160.3-217.6223.1-66.459.2-108.5113.3

Deferred Income Tax Expense Benefit

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DeferredIncomeTaxExpenseBenefit


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1.418-1.1426.958-0.0660.9910.954-3.525-0.541.62-1.155-2.0490.3090.2190.902-11.817-1.272-1.189-0.053.258-0.096-0.6870.5585.439-1.4730.085-0.8862.964-1.6711.1410.6164.6814.2595.121-0.1884.9152.206-0.5030.9677.4453.6352.0710.3827.7211.7430.9420.795
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value37-10.4070.095-29.848443.8760.194-38.696431.797-6.646-33.61243-5.088-1.419-27.718404.0413.908-20.80930-0.8171.215-6.97713-0.5554.489-13.83517-2.6760.042-15.16917-5.404-2.568-4.17141.6862.828-4.75719-9.1135.502-4.99113-0.696
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value6930387161-24.503607755-10.01163715411526841125362370.1042937434.231164031132940241229286.9643.985172920177.04524177.328
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax30.413.716.033.326.7-11.025.434.824.4-4.628.734.125.65.824.435.421.77.027.034.021.00.116.523.827.72.911.027.922.810.421.731.719.611.224.223.56.34.218.731.321.820.18.229.021.59.6

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value6.731-0.164-13.6214.876114.6391.3244.5667.14-1.1229.334116.5921730121111178.9347.8134.9956.4117.9117.0424.2854.816109.283.814119.3936.6232.6663.272.825-2.2712.7596.3519.7618.9287.5847.2418.5196.795.952
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.9-0.1-5.62.35.12.10.62.13.2-0.54.25.33.18.714.26.55.86.38.74.94.33.03.65.04.52.93.27.26.73.08.77.35.32.32.72.3-2.12.96.710.29.68.78.410.28.47.8

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value6.731-0.1644.876114.6394.5667.14-1.1229.334116.592173012111117117.8134.9956.4117.9117.0424.2854.816109.283.814119.3936.6232.6663.272.825-2.2712.7596.9479.7618.9287.584
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0127.9100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0109.4100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.9-0.12.35.12.12.13.2-0.54.25.33.18.714.26.55.86.38.76.24.33.03.65.04.52.93.27.26.73.08.77.35.32.32.72.3-2.12.97.310.29.68.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value30303220201315141513121013119.57610109.2947.6339.2187.8717.9167.3476.4866.3115.1024.8534.4484.333.7143.9423.0734.7175.1784.7854.8315.7883.8363.9713.5873.533.7963.8193.182.9083.152
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-13218000.0-12772000.0-13983000.0-30298000.0-13762000.0-13804000.0-14256000.0-14496000.0-16610000.0-121860000.0-12937000.0-13605000.0-53339000.0-17910000.0-106640000.0-8712000.0-60282000.0-9243000.0-9516000.0-13707000.0-10572000.0-13635000.0-196240000.0-11952000.0-8867000.0-5650000.0-163480000.0-5863000.0-34609000.0-7407000.0-7505000.0-4067000.0-4655000.0-7932000.0-5803000.0-4788000.0-285600000.0-6297000.0-13140000.0-5139000.0-6511000.0-16948000.0-5107000.0-3836000.0-4082000.0-5199000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-5.8-5.8-5.8-14.1-5.9-6.2-6.0-6.6-7.4-56.5-5.8-6.5-25.0-8.8-49.1-4.5-31.4-5.0-4.8-7.5-5.9-8.1-111.6-7.5-5.7-3.8-107.0-4.1-24.8-5.8-5.6-3.2-3.7-6.9-4.8-3.9-259.2-6.6-13.8-5.4-7.0-19.4-6.0-4.6-5.1-6.8

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2.6583.473.854193.022.8671.8953.2225.2231.1521.8093.3353.8045.7711.7912.7512.9472.7192.2352.894.7327.8374.0737.5464.4932.5215.5942.894-0.6966.1196.6793.3393.7766.2925.133.8595.2716.2975.2185.2946.631.0730.1633.8361.6925.069
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value122-379.619383-261.208146-278.944255-175.472105-74.431195-178.729129-438.925323-60.59222-6.776-43.37-47.324-23.3989.546165-21.209-33.6460.075107-4.873-5.09214-26.365-27.185-20.826-9.912-34.942-20.156254-4.58-4.823-5.113-4.486-4.841-0.379-7.825-23.034-1.51
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax53.4-173.2157.9-121.563.1-124.7107.6-79.446.7-34.588.5-85.360.8-215.0149.3-31.211.5-3.7-21.9-25.9-13.05.693.9-13.4-21.50.170.2-3.4-3.711.5-19.5-21.3-16.6-8.6-29.1-16.5230.7-4.8-5.1-5.4-4.8-5.5-0.4-9.4-28.6-2.0

Payments Of Dividends

us-gaap:PaymentsOfDividends

us-gaap:PaymentsOfDividends


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.00.00.05.965.9025.9035.9015.9015.8285.8315.8285.8255.775.7695.7655.7655.7035.715.6985.75.6255.6285.6295.6265.4765.555.5445.5375.6235.4995.485.4795.4835.4185.4215.4095.3955.3485.355.3364.8814.774.9294.91
Percentage of PaymentsOfDividends0.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock


Payments
Period End2021-06-302021-03-31
Value3028
Percentage of PaymentsForRepurchaseOfCommonStock100.0100.0

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:EffectiveIncomeTaxRateContinuingOperations


Effective
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value20.6131.539.726.50.2760.13-0.2320.0740.2770.620.0670.0290.111-0.248-0.2950.1820.222-0.3560.0050.1790.3150.348-0.0460.3590.3780.29-0.0260.1540.3770.422-0.0890.430.4720.1170.060.390.3410.4250.010.3730.3610.262-0.0040.3520.378
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value5244433727257372852618
Percentage of DeferredTaxLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value4625000.04346000.03704000.05160000.03145000.03024000.02856000.02836000.03077000.03564000.02687000.04089000.04160000.03698000.03970000.04124000.03184000.03846000.01777000.01414000.01231000.0346000.0
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value296.4536.8557.2056.9947.911111110109.6147.9947.865
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsValuationAllowance us-gaap:IncomeTaxAuthority

us-gaap:StateAndLocalJurisdiction


Deferred
Period End2020-12-31
Value28
Percentage of DeferredTaxAssetsValuationAllowance96.6

blkb:AmountsReclassifiedFromAccumulatedOtherComprehensiveIncomeLossToEarnings us-gaap:OtherComprehensiveIncomeLocation

blkb:AmountsReclassifiedFromAccumulatedOtherComprehensiveIncomeLossToEarnings

us-gaap:CashFlowHedging


Amounts
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
Value1408000.01376000.01328000.01276000.01018000.0205000.096000.0-196000.0-244000.0-229000.0-135000.0-23000.060000.0-20000.0101000.088000.0-15000.0119000.0231000.0265000.0302000.0308000.0447000.0373000.0374000.0375000.0367000.0318000.0316000.0214000.0-202000.0203000.0199000.0-190000.0
Percentage of AmountsReclassifiedFromAccumulatedOtherComprehensiveIncomeLossToEarnings100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

blkb:ChangeInCustomerFundsReceivable

blkb:ChangeInCustomerFundsReceivable


Change
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
Value-4451000.0-563000.04633000.0-3667000.0-95000.0-733000.07584000.0-2542000.0-168000.0-3573000.03527000.020000.0392000.0-4783000.06644000.0000
Percentage of ChangeInCustomerFundsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

blkb:ExerciseOfStockOptionsAndStockAppreciationRightsShares us-gaap:StatementEquityComponents

blkb:ExerciseOfStockOptionsAndStockAppreciationRightsShares

us-gaap:CommonStock


Exercise
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value804320.0906.07111.0210060.05315.021726.0234450.027238.040741.0279420.042668.073097.080712.0144940.082503.07422.024132.088021.098546.015146.027911.044870.0112880.0221960.0201320.073341.026496.034114.033588.0260980.054854.011446.0143030.053097.0
Percentage of ExerciseOfStockOptionsAndStockAppreciationRightsShares100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

blkb:IncreaseDecreaseAccruedExpensesAndOtherLiabilities

blkb:IncreaseDecreaseAccruedExpensesAndOtherLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value894000.0549000.0-17637000.0-5075000.05174000.0-31694000.03874000.0-4578000.02676000.0-11690000.04896000.0-248000.07417000.0-14092000.04549000.0-1055000.07069000.0-15536000.012086000.05182000.06776000.0-24795000.08861000.0855000.08886000.0-18768000.01112000.0-1517000.08577000.0-4158000.01588000.0-8912000.0343000.0-10074000.03230000.01074000.0561000.0-5253000.0-840000.02829000.03328000.0-6373000.0-1448000.0717000.02839000.0-6356000.0
Percentage of IncreaseDecreaseAccruedExpensesAndOtherLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

blkb:LineOfCreditFacilityVariableInterestRate us-gaap:SubsequentEventType, us-gaap:VariableRate

blkb:LineOfCreditFacilityVariableInterestRate

us-gaap:SubsequentEvent, us-gaap:Eurodollar


Line
Period End2020-10-30
Value1.0
Percentage of LineOfCreditFacilityVariableInterestRate100.0

us-gaap:SubsequentEvent, us-gaap:FederalFundsEffectiveSwapRate


Line
Period End2020-10-30
Value0.5
Percentage of LineOfCreditFacilityVariableInterestRate50.0

blkb:LineOfCreditFacilityVariableInterestRate us-gaap:VariableRate

us-gaap:Eurodollar


Line
Period End2020-10-30
Value1.0
Percentage of LineOfCreditFacilityVariableInterestRate100.0

us-gaap:FederalFundsEffectiveSwapRate


Line
Period End2020-10-302017-12-312017-09-30
Value0.500
Percentage of LineOfCreditFacilityVariableInterestRate50.00.00.0

blkb:NonoperatingIncomeExpenseExcludingInterestExpense

blkb:NonoperatingIncomeExpenseExcludingInterestExpense


Nonoperating
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
Value487000.0-1010000.0-584000.0542000.0630000.01070000.0-463000.02158000.02181000.0182000.0744000.0-147000.0346000.0160000.0679000.0468000.0827000.0286000.0-106000.0-15000.0-65000.0-105000.0-318000.0192000.0-1274000.0-287000.0
Percentage of NonoperatingIncomeExpenseExcludingInterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

blkb:OperatingLeaseLeaseNotYetCommencedExpense

blkb:OperatingLeaseLeaseNotYetCommencedExpense


Operating
Period End2021-03-312020-12-31
Value3500000.02200000.0
Percentage of OperatingLeaseLeaseNotYetCommencedExpense100.0100.0

blkb:OtherComprehensiveIncomeLossNetOfTaxAttributableToParentBeforeReclassifications us-gaap:OtherComprehensiveIncomeLocation

blkb:OtherComprehensiveIncomeLossNetOfTaxAttributableToParentBeforeReclassifications

us-gaap:CashFlowHedging


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value692000.0-3130000.01130000.0-1000.0200000.03273000.0-342000.0219000.01759000.0763000.01728000.0-583000.0-721000.0-1094000.0-779000.0320000.0-5000.0-110000.0-283000.0-248000.0301000.0856000.0-504000.0491000.0133000.0698000.0517000.0-273000.0586000.0-169000.0-118000.0221000.0-307000.0-71000.0
Percentage of OtherComprehensiveIncomeLossNetOfTaxAttributableToParentBeforeReclassifications100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

blkb:SecurityIncidentAccruedInsuranceRecoveries

blkb:SecurityIncidentAccruedInsuranceRecoveries


Security
Period End2021-06-302021-03-312020-12-312020-09-30
Value11126.52.9
Percentage of SecurityIncidentAccruedInsuranceRecoveries100.0100.0100.0100.0

blkb:SecurityIncidentExpense

blkb:SecurityIncidentExpense


Security
Period End2021-06-302021-03-312020-12-312020-09-30
Value11126.83.2
Percentage of SecurityIncidentExpense100.0100.0100.0100.0

blkb:SecurityIncidentNumberOfConsumerClassActionCases

blkb:SecurityIncidentNumberOfConsumerClassActionCases


Security
Period End2021-06-302021-03-312020-12-31
Value-1.030.07.0
Percentage of SecurityIncidentNumberOfConsumerClassActionCases100.0100.0100.0

blkb:SecurityIncidentNumberOfConsumerClassActionCases us-gaap:StatementGeographical

blkb:USStates


Security
Period End2021-03-312020-12-31
Value1.0-3.0
Percentage of SecurityIncidentNumberOfConsumerClassActionCases3.3-42.9

country:CA


Security
Period End2021-06-302021-03-312020-12-31
Value02.00
Percentage of SecurityIncidentNumberOfConsumerClassActionCases-0.06.70.0

country:US


Security
Period End2021-06-302021-03-312020-12-31
Value027.010.0
Percentage of SecurityIncidentNumberOfConsumerClassActionCases-0.090.0142.9

blkb:SecurityIncidentNumberOfCustomerClaims

blkb:SecurityIncidentNumberOfCustomerClaims


Security
Period End2021-03-312020-12-31
Value630.0410.0
Percentage of SecurityIncidentNumberOfCustomerClaims100.0100.0

blkb:SecurityIncidentNumberOfStateAttorneysGeneral

blkb:SecurityIncidentNumberOfStateAttorneysGeneral


Security
Period End2021-06-302021-03-312020-12-31
Value047.01.0
Percentage of SecurityIncidentNumberOfStateAttorneysGeneral0.0100.0100.0

blkb:SurrenderOfSharesUponRestrictedStockAndRestrictedUnitVestingAndExerciseofStockAppreciationRights

blkb:SurrenderOfSharesUponRestrictedStockAndRestrictedUnitVestingAndExerciseofStockAppreciationRights


Surrender
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value285520.0240870.04574.021200.0245360.05795.017119.0239310.020736.025678.0234450.082056.036273.040757.0104640.0106760.08277.012240.035735.0136900.03398.08621.018028.0147820.0107130.0
Percentage of SurrenderOfSharesUponRestrictedStockAndRestrictedUnitVestingAndExerciseofStockAppreciationRights100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value20180.291.214190.5191.36180.2872.2142.673224.872.4481.816144.882.4592.5215.51612-0.503
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:TreasuryStock


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value20180.291.214190.5191.36180.2872.2142.673224.872.4481.816144.882.4592.5215.51612-0.503
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease us-gaap:ValuationAllowancesAndReservesType

us-gaap:AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease

blkb:AllowanceforReturns


Allowance
Period End2020-12-312020-09-302020-06-302020-03-31
Value2590000.0884000.01074000.01895000.0
Percentage of AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease100.0100.0100.0100.0

us-gaap:AllowanceForCreditLoss


Allowance
Period End2020-12-312020-09-302020-06-302020-03-31
Value484000.02595000.03115000.0593000.0
Percentage of AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease18.7293.6290.031.3

us-gaap:AllowanceForDoubtfulAccountsReceivableRecoveries us-gaap:ValuationAllowancesAndReservesType

us-gaap:AllowanceForDoubtfulAccountsReceivableRecoveries

us-gaap:AllowanceForCreditLoss


Allowance
Period End2020-12-31
Value279000.0
Percentage of AllowanceForDoubtfulAccountsReceivableRecoveries100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableWriteOffs us-gaap:ValuationAllowancesAndReservesType

us-gaap:AllowanceForDoubtfulAccountsReceivableWriteOffs

us-gaap:AllowanceForCreditLoss


Allowance
Period End2020-12-31
Value1392000.0
Percentage of AllowanceForDoubtfulAccountsReceivableWriteOffs100.0

us-gaap:AmortizationOfFinancingCostsAndDiscounts

us-gaap:AmortizationOfFinancingCostsAndDiscounts


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value373000.0506000.0212000.0193000.0188000.0188000.0188000.0188000.0188000.0188000.0188000.0188000.0188000.0188000.0188000.0182000.0229000.0239000.0240000.0240000.0239000.0239000.0239000.0240000.0210000.0210000.0210000.0181000.0181000.0162000.0-107000.0414000.0153000.0153000.0
Percentage of AmortizationOfFinancingCostsAndDiscounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CapitalizedContractCostAmortization

us-gaap:CapitalizedContractCostAmortization


Capitalized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value9.09.29.29.49.49.59.59.29.89.69.19.09.1
Percentage of CapitalizedContractCostAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths

us-gaap:CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths


Cash
Period End2021-06-302021-03-312020-12-31
Value1000000.0-2200000.07400000.0
Percentage of CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:ContractWithCustomerLiabilityRevenueRecognized


Contract
Period End2021-06-302021-03-312020-12-31
Value9513439
Percentage of ContractWithCustomerLiabilityRevenueRecognized100.0100.0100.0

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1 us-gaap:Range, us-gaap:SubsequentEventType, us-gaap:VariableRate

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1

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


Debt
Period End2020-10-30
Value1.125
Percentage of DebtInstrumentBasisSpreadOnVariableRate1100.0

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


Debt
Period End2020-10-30
Value2.125
Percentage of DebtInstrumentBasisSpreadOnVariableRate1188.9

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


Debt
Period End2020-10-30
Value0.375
Percentage of DebtInstrumentBasisSpreadOnVariableRate133.3

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


Debt
Period End2020-10-30
Value1.375
Percentage of DebtInstrumentBasisSpreadOnVariableRate1122.2

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1 us-gaap:Range, us-gaap:VariableRate

srt:Maximum, us-gaap:BaseRate


Debt
Period End2020-10-30
Value1.125
Percentage of DebtInstrumentBasisSpreadOnVariableRate1100.0

srt:Maximum, us-gaap:LondonInterbankOfferedRateLIBOR


Debt
Period End2020-10-30
Value2.125
Percentage of DebtInstrumentBasisSpreadOnVariableRate1188.9

srt:Minimum, us-gaap:BaseRate


Debt
Period End2020-10-30
Value0.375
Percentage of DebtInstrumentBasisSpreadOnVariableRate133.3

srt:Minimum, us-gaap:LondonInterbankOfferedRateLIBOR


Debt
Period End2020-10-30
Value1.375
Percentage of DebtInstrumentBasisSpreadOnVariableRate1122.2

us-gaap:Depreciation

us-gaap:Depreciation


Depreciation
Period End2020-12-312020-09-302019-12-312019-09-30
Value6.95.13.73.8
Percentage of Depreciation100.0100.0100.0100.0

us-gaap:DepreciationAndAmortization

us-gaap:DepreciationAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value20202322242121202121192020191918181817171717141413131211101011101010109.217.4074.8164.7144.1744.094.0174.1134.1114.0253.819
Percentage of DepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:IncomeStatementLocation

us-gaap:DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet

us-gaap:InterestRateSwap, us-gaap:CashFlowHedging, us-gaap:InterestExpense


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-09-302014-06-302013-09-302013-06-30
Value1408000.01373000.01328000.01276000.01018000.0205000.096000.0-196000.0-244000.0-229000.0-135000.0-23000.060000.0-20000.0101000.088000.0-15000.0119000.0231000.0265000.0302000.0308000.0447000.0373000.0318000.0316000.0203000.0199000.0
Percentage of DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations


Effect
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value762000.0230000.02868000.01606000.0593000.0-2822000.03218000.0-1714000.0-1562000.01036000.0-1729000.01321000.0-2319000.0713000.0-424000.070000.0-222000.026000.0
Percentage of EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GoodwillForeignCurrencyTranslationGainLoss

us-gaap:GoodwillForeignCurrencyTranslationGainLoss


Goodwill
Period End2021-06-302021-03-312020-12-312017-09-302017-06-302017-03-312016-12-31
Value397000.01259000.03014000.0134000.059000.0126000.0-210000.0
Percentage of GoodwillForeignCurrencyTranslationGainLoss100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsPayableTrade

us-gaap:IncreaseDecreaseInAccountsPayableTrade


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-5.1947.55-2.794-8.219-4.963-4.02112-0.293.84-3.6249.621-6.4617.982-1.6553.9151.06-2.684-1.2673.422-8.598.7180.1392.849-1.9515.346-0.111-1.8872.272-4.1222.7891.2483.12-3.832-0.754-0.05-1.956-1.0961.7390.805-0.4462.902-1.5470.979-2.1821.350.061
Percentage of IncreaseDecreaseInAccountsPayableTrade100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInDeferredRevenue

us-gaap:IncreaseDecreaseInDeferredRevenue


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value50-22.752-13.019-9.95545-23.364-7.899-5.96544-18.006-6.704-3.65748-18.866-2.444-5.54337-6.758-2.73-2.06528-8.883-3.3612.18118-4.7656.5244.89914-8.967-3.1721.75515-7.139-2.6162.47414-1.691-1.485.23415-6.976-1.2714.03213-3.348
Percentage of IncreaseDecreaseInDeferredRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.73617-18.276-11.361.7655.303-11.512-7.5960.61812-7.155-6.2578.577106.745-3.0971.2871.2141.544-5.0777.857-1.84610-1.7785.735-3.6338.2093.196-2.632-0.3097.115-1.773-1.903-6.4163.208-1.6595.5141.7543.4314.7171.913-7.1468.822.0971.956-3.274
Percentage of IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements


Incremental
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value688550.0112360.0588570.0178450.0419450.061411.0706760.0446060.00-61380.0880560.0830440.0989790.054372.01135300.01028900.0981080.0-6014.01234200.0844570.0789600.047683.0979880.0823360.0638430.041013.0687290.0504960.0424810.0-12666.0833850.0811220.0535690.0-25807.0545260.00668800.031011.0599420.0651040.0564440.0-4299.0725610.0766680.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InsuranceRecoveries

us-gaap:InsuranceRecoveries


Insurance
Period End2021-06-302021-03-31
Value3600000.06400000.0
Percentage of InsuranceRecoveries100.0100.0

us-gaap:InvestmentIncomeInterest

us-gaap:InvestmentIncomeInterest


Investment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value77000.0152000.0261000.0767000.0110000.0522000.0376000.01247000.0525000.0654000.0395000.0943000.0277000.0222000.0393000.0210000.0118000.0224000.0118000.0121000.0132000.08000.07000.08000.013000.017000.013000.016000.014000.016000.020000.017000.028000.038000.033000.047000.050000.055000.045000.033000.020000.021000.023000.020000.0
Percentage of InvestmentIncomeInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LeaseCost

us-gaap:LeaseCost


Lease
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2.7053.0816126.4546.6569.0466.9066.1276.287
Percentage of LeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage us-gaap:Range

us-gaap:LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage

srt:Maximum


Line
Period End2020-10-30
Value0.375
Percentage of LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage100.0

srt:Minimum


Line
Period End2020-10-30
Value0.25
Percentage of LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage66.7

us-gaap:LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage us-gaap:Range, us-gaap:SubsequentEventType

srt:Maximum, us-gaap:SubsequentEvent


Line
Period End2020-10-30
Value0.375
Percentage of LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage100.0

srt:Minimum, us-gaap:SubsequentEvent


Line
Period End2020-10-30
Value0.25
Percentage of LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage66.7

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeaseCost


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2.3722.84116126.2816.3118.8396.7865.8946.001
Percentage of OperatingLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseImpairmentLoss

us-gaap:OperatingLeaseImpairmentLoss


Operating
Period End2020-12-31
Value1100000.0
Percentage of OperatingLeaseImpairmentLoss100.0

us-gaap:OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value345000.04149000.0-150000.0943000.0551000.0-3122000.0413000.0-363000.0-1939000.0-932000.0-1827000.0566000.0765000.01079000.0840000.0-267000.0-4000.0182000.0422000.0409000.0-118000.0-669000.0779000.0-262000.097000.0-469000.0-294000.0468000.0-394000.0312000.084000.0-97000.0429000.0119000.092000.0-319000.0-564000.00000
Percentage of OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax us-gaap:OtherComprehensiveIncomeLocation

us-gaap:OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax

us-gaap:CashFlowHedging


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-345000.0-4149000.0150000.0-943000.0-551000.03122000.0-413000.0363000.01939000.0932000.01827000.0-566000.0-765000.0-1079000.0-840000.0267000.04000.0-182000.0-422000.0-409000.0118000.0669000.0-779000.0262000.0-97000.0469000.0294000.0-468000.0394000.0312000.0-84000.097000.0-429000.0119000.0
Percentage of OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value2128000.06660000.06375000.05604000.0-336000.0-8850000.08375000.0-4256000.0-7957000.03658000.0-5712000.01613000.0-8052000.07516000.0364000.0-455000.0-383000.0282000.0485000.0698000.0-549000.0-266000.01195000.0-94000.0-99000.0-795000.029000.0236000.0-779000.0867000.024000.0-3000.0163000.0404000.070000.0-442000.0-732000.0279000.0-232000.0-273000.0-87000.0
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax us-gaap:OtherComprehensiveIncomeLocation

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax

us-gaap:CashFlowHedging


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value1037000.01019000.0980000.0942000.0751000.0151000.071000.0-144000.0-180000.0-169000.0-99000.0-17000.044000.0-15000.061000.053000.0-9000.072000.0139000.0161000.0183000.0187000.0275000.0229000.0230000.0229000.0223000.0195000.0192000.0481000.0127000.0124000.0122000.0116000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax us-gaap:OtherComprehensiveIncomeLocation

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax

us-gaap:CashFlowHedging


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value371000.0357000.0348000.0334000.0267000.054000.025000.0-52000.0-64000.0-60000.0-36000.0-6000.016000.0-5000.040000.035000.0-6000.047000.092000.0104000.0119000.0121000.0172000.0144000.0144000.0146000.0144000.0123000.0124000.0-320000.075000.079000.077000.0-74000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax

us-gaap:InterestRateSwap, us-gaap:CashFlowHedging


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value-503000.0-1420000.0202000.0-1276000.0-746000.05979000.0-561000.0492000.02632000.0-806000.02484000.0-769000.0-1041000.0-2748000.0-1388000.0
Percentage of OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax us-gaap:OtherComprehensiveIncomeLocation

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax

us-gaap:CashFlowHedging


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value244000.0-1100000.0071000.01154000.0-122000.078000.0628000.0276000.0621000.0-209000.0-259000.0-392000.0-509000.0209000.0-3000.0-71000.0-183000.0-161000.0195000.0555000.0-317000.0309000.083000.0439000.0331000.0-175000.0375000.0113000.027000.0141000.0
Percentage of OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherNoncashIncomeExpense

us-gaap:OtherNoncashIncomeExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-187000.032000.0-755000.0-1726000.0-375000.0-102000.0-2859000.0-65000.0-162000.0-1820000.0-173000.01666000.0222000.0197000.068000.0-1112000.0297000.0243000.0230000.0205000.0212000.0217000.038000.0448000.0235000.0-524000.0509000.0-184000.0-1320000.0-168000.0129000.0-552000.0-485000.0-353000.0-303000.0-267000.0-732000.0555000.01581000.0-86000.0-629000.012000.0136000.026000.0
Percentage of OtherNoncashIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsOfDebtIssuanceCosts

us-gaap:PaymentsOfDebtIssuanceCosts


Payments
Period End2020-10-30
Value1200000.0
Percentage of PaymentsOfDebtIssuanceCosts100.0

us-gaap:PaymentsOfFinancingCosts

us-gaap:PaymentsOfFinancingCosts


Payments
Period End2020-12-312020-10-302018-12-312018-09-302017-12-312017-09-302017-06-022016-12-312016-09-302015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-02-282014-03-312013-12-312013-09-302013-06-302013-02-282013-03-312012-12-312012-09-302012-06-302012-02-292012-03-312011-12-312011-09-30
Value3993000.04000000.000003100000.0000429000.000519000.0002500000.02484000.00002400000.000002400000.02440000.000
Percentage of PaymentsOfFinancingCosts100.0100.00.00.00.00.0100.00.00.00.0100.00.00.0100.00.00.0100.0100.00.00.00.00.0100.00.00.00.0100.0100.00.00.0

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value20180.1390.291.214193.5020.5191.36180.2872.2142.673224.872.4481.816144.8792.462.5215.5166.693
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireBuildings us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty

us-gaap:PaymentsToAcquireBuildings

blkb:GlobalHQ


Payments
Period End2020-08-31
Value15
Percentage of PaymentsToAcquireBuildings100.0

us-gaap:PaymentsToDevelopSoftware

us-gaap:PaymentsToDevelopSoftware


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
Value109.302101010101211111111109.2567.1037.746.9917.0316.5837.2816.916.375.7984.6133.8863.8533.1292.2482.4562.6791.152
Percentage of PaymentsToDevelopSoftware100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromIssuanceOfDebt

us-gaap:ProceedsFromIssuanceOfDebt


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value47804816557144524257271514691811861250867485846742281328411640.05.0196393511160.03.03120.00.00.0
Percentage of ProceedsFromIssuanceOfDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.0100.0100.00.00.00.0

us-gaap:ProceedsFromLinesOfCredit us-gaap:CreditFacility

us-gaap:ProceedsFromLinesOfCredit

us-gaap:SecuredDebt


Proceeds
Period End2020-10-302017-06-022014-02-28
Value400300175
Percentage of ProceedsFromLinesOfCredit100.0100.0100.0

us-gaap:ProceedsFromLinesOfCredit us-gaap:CreditFacility, us-gaap:SubsequentEventType

us-gaap:SecuredDebt, us-gaap:SubsequentEvent


Proceeds
Period End2020-10-30
Value400
Percentage of ProceedsFromLinesOfCredit100.0

us-gaap:ProceedsFromRepaymentsOfRestrictedCashFinancingActivities

us-gaap:ProceedsFromRepaymentsOfRestrictedCashFinancingActivities


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
Value183-353.597399-216.209189-311.095293-108.134135-242.885236-116.029125-434.64440-128.663110-195.999
Percentage of ProceedsFromRepaymentsOfRestrictedCashFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ProceedsFromStockOptionsExercised


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value003000.01000.001000.03000.03000.0002000.09000.01000.003000.011000.06000.05000.02000.03000.09000.05000.07000.011000.06000.075000.082000.025000.050000.0114000.0154000.067000.041000.0121000.025000.02959000.068000.048000.01609000.0316000.03370000.01715000.0326000.02654000.0
Percentage of ProceedsFromStockOptionsExercised0.00.0100.0100.00.0100.0100.0100.00.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProvisionForDoubtfulAccounts

us-gaap:ProvisionForDoubtfulAccounts


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2.2772.1413.0743.4794.1892.4882.5331.5462.6142.0322.131.0631.9231.7744.441.7772.7312.7380.5910.8751.2471.0172.2521.6391.5761.3581.4110.8711.8921.0744.331-0.1740.5760.675.3791.7011.3941.1171.9381.3421.2421.1240.8131.2580.2450.457
Percentage of ProvisionForDoubtfulAccounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfDebt

us-gaap:RepaymentsOfDebt


Repayments
Period End2021-03-312020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-03-31
Value59867552536036173210.0
Percentage of RepaymentsOfDebt100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:RepaymentsOfLinesOfCredit us-gaap:CreditFacility

us-gaap:RepaymentsOfLinesOfCredit

us-gaap:RevolvingCreditFacility


Repayments
Period End2020-10-30
Value124
Percentage of RepaymentsOfLinesOfCredit100.0

us-gaap:RepaymentsOfLinesOfCredit us-gaap:CreditFacility, us-gaap:SubsequentEventType

us-gaap:RevolvingCreditFacility, us-gaap:SubsequentEvent


Repayments
Period End2020-10-30
Value124
Percentage of RepaymentsOfLinesOfCredit100.0

us-gaap:RestructuringCharges

us-gaap:RestructuringCharges


Restructuring
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value78000.054000.057000.0105000.050000.024000.02725000.0400000.0730000.01953000.01005000.0-914000.03688000.0811000.0794000.0000000028000.0110000.0146000.03210000.0175000.0000
Percentage of RestructuringCharges100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited

us-gaap:CommonStock


Stock
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value76316.046864.059426.047456.023207.0-29746.043314.031359.0-41688.035218.042237.08156.047095.019655.029288.013600.034979.034781.011825.012410.017836.044651.040072.094533.032535.060609.019040.059158.047861.016701.037090.019005.041563.023944.0
Percentage of StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardGross us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardGross

us-gaap:CommonStock


Stock
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value9431.048783.020776.0563950.037920.012405.0663910.026460.068313.0437880.014011.049362.013480.0497460.0126820.041434.027846.0540160.070095.0112290.018346.047838.0404920.032520.09405.011618.0608710.028074.048906.01962.0453600.026592.017132.05103.0
Percentage of StockIssuedDuringPeriodSharesRestrictedStockAwardGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross


Stock
Period End2021-03-312020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value1000.001000.0001000.0000001000.000001000.000001000.000001000.0000
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardGross100.00.0100.00.00.0100.00.00.00.00.00.0100.00.00.00.00.0100.00.00.00.00.0100.00.00.00.00.0100.00.00.00.0

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross us-gaap:StatementEquityComponents

us-gaap:CommonStock


Stock
Period End2021-03-312020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312013-06-302013-03-31
Value1000.001000.0001000.0000001000.000001000.000001000.000
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardGross100.00.0100.00.00.0100.00.00.00.00.00.0100.00.00.00.00.0100.00.00.00.00.0100.00.00.0

us-gaap:SubleaseIncome

us-gaap:SubleaseIncome


Sublease
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value366000.0460000.0535000.0732000.0940000.0913000.0927000.0803000.0755000.0705000.0
Percentage of SubleaseIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStockValueAcquiredCostMethod

us-gaap:TreasuryStockValueAcquiredCostMethod


Treasury
Period End2021-06-302021-03-31
Value3028
Percentage of TreasuryStockValueAcquiredCostMethod100.0100.0

us-gaap:TreasuryStockValueAcquiredCostMethod us-gaap:StatementEquityComponents

us-gaap:TreasuryStock


Treasury
Period End2021-06-302021-03-31
Value3028
Percentage of TreasuryStockValueAcquiredCostMethod100.0100.0

us-gaap:TreasuryStockValueAcquiredCostMethod us-gaap:SubsequentEventType

us-gaap:SubsequentEvent


Treasury
Period End2021-02-19
Value28
Percentage of TreasuryStockValueAcquiredCostMethod0.0

us-gaap:VariableLeaseCost

us-gaap:VariableLeaseCost


Variable
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value699000.0699000.0775000.01120000.01113000.01258000.01134000.0923000.0988000.0991000.0
Percentage of VariableLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

blkb:AccruedCommissionsAndSalariesCurrentAndLongTerm

blkb:AccruedCommissionsAndSalariesCurrentAndLongTerm


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value4970000.05524000.05010000.02985000.07601000.03945000.06980000.04477000.07760000.08546000.09934000.07855000.08917000.06701000.06943000.05429000.07646000.05478000.09352000.06620000.08371000.04760000.08391000.05091000.07323000.04915000.08712000.05007000.06160000.05601000.07127000.06776000.05883000.04954000.05905000.0
Percentage of AccruedCommissionsAndSalariesCurrentAndLongTerm100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

blkb:AccruedCustomerCreditBalancesCurrentAndLongTerm

blkb:AccruedCustomerCreditBalancesCurrentAndLongTerm


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value5816000.05891000.05874000.05677000.05032000.04359000.04505000.04365000.04090000.04027000.04076000.03928000.03413000.03400000.04652000.05246000.05130000.04759000.05148000.04615000.04305000.03298000.03515000.02843000.02510000.02172000.02573000.02537000.02712000.03000000.03281000.02503000.02576000.03439000.04577000.0
Percentage of AccruedCustomerCreditBalancesCurrentAndLongTerm100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

blkb:AccruedExpensesAndOtherCurrentLiabilities

blkb:AccruedExpensesAndOtherCurrentLiabilities


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value5553524852457363605446444640544546395444443757454535524245364039473745393727323027232825
Percentage of AccruedExpensesAndOtherCurrentLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

blkb:ActiveCustomers

blkb:ActiveCustomers


Active
Period End2020-12-31
Value45000.0
Percentage of ActiveCustomers100.0

blkb:AmountReclassifiedFromLeaseholdImprovementsToBuildingImprovements

blkb:AmountReclassifiedFromLeaseholdImprovementsToBuildingImprovements


Amount
Period End2020-12-31
Value5500000.0
Percentage of AmountReclassifiedFromLeaseholdImprovementsToBuildingImprovements100.0

blkb:DeferredTaxAssetIntangibleAssets

blkb:DeferredTaxAssetIntangibleAssets


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value1.6631.561.0410.6930.6520.4490.5625.849
Percentage of DeferredTaxAssetIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0

blkb:DeferredTaxAssetsLeasingArrangements

blkb:DeferredTaxAssetsLeasingArrangements


Deferred
Period End2020-12-312019-12-312018-12-31
Value13350.0
Percentage of DeferredTaxAssetsLeasingArrangements100.0100.00.0

blkb:DeferredTaxAssetsTaxCreditCarryforwardsStateAndForeign

blkb:DeferredTaxAssetsTaxCreditCarryforwardsStateAndForeign


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value422418149.924101418
Percentage of DeferredTaxAssetsTaxCreditCarryforwardsStateAndForeign100.0100.0100.0100.0100.0100.0100.0100.0

blkb:DeferredTaxLiabilitiesDeferredExpenseSalesCommissions

blkb:DeferredTaxLiabilitiesDeferredExpenseSalesCommissions


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value2021199.3546.347
Percentage of DeferredTaxLiabilitiesDeferredExpenseSalesCommissions100.0100.0100.0100.0100.0

blkb:DerivativeAssetsCurrentAndLongTerm

blkb:DerivativeAssetsCurrentAndLongTerm


Derivative
Period End2021-06-302021-03-31
Value2061000.02851000.0
Percentage of DerivativeAssetsCurrentAndLongTerm100.0100.0

blkb:DerivativeLiabilitiesCurrentAndLongTerm

blkb:DerivativeLiabilitiesCurrentAndLongTerm


Derivative
Period End2021-06-302021-03-312020-12-31
Value138000.01431000.04159000.0
Percentage of DerivativeLiabilitiesCurrentAndLongTerm100.0100.0100.0

blkb:DueToCustomersCurrent

blkb:DueToCustomersCurrent


Due
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
Value438254608207423233546250359224420185300177611353
Percentage of DueToCustomersCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

blkb:EstimatedAmortizationExpenseforFiniteLivedIntangibleAssetsfortheNextFiveYears

blkb:EstimatedAmortizationExpenseforFiniteLivedIntangibleAssetsfortheNextFiveYears


Estimated
Period End2020-12-31
Value169
Percentage of EstimatedAmortizationExpenseforFiniteLivedIntangibleAssetsfortheNextFiveYears100.0

blkb:LineofCreditFacilityAvailableIncreaseCapacityAmount

blkb:LineofCreditFacilityAvailableIncreaseCapacityAmount


Lineof
Period End2020-10-30
Value250
Percentage of LineofCreditFacilityAvailableIncreaseCapacityAmount100.0

blkb:LineofCreditFacilityAvailableIncreaseCapacityAmount us-gaap:SubsequentEventType

us-gaap:SubsequentEvent


Lineof
Period End2020-10-30
Value250
Percentage of LineofCreditFacilityAvailableIncreaseCapacityAmount100.0

blkb:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFour

blkb:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFour


Long
Period End2021-06-302021-03-31
Value5353
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFour100.0100.0

blkb:LongtermPurchaseCommitmentRemainingMinimumAmountCommitted us-gaap:LongTermPurchaseCommitmentByCategoryOfItemPurchased

blkb:LongtermPurchaseCommitmentRemainingMinimumAmountCommitted

blkb:ThirdpartyTechnology


Longterm
Period End2021-06-302021-03-312020-12-312020-09-30
Value45799485
Percentage of LongtermPurchaseCommitmentRemainingMinimumAmountCommitted100.0100.0100.0100.0

blkb:NetLeverageRatio us-gaap:Range

blkb:NetLeverageRatio

srt:Maximum


Net
Period End2020-10-30
Value3.25
Percentage of NetLeverageRatio100.0

blkb:NetLeverageRatio us-gaap:Range, us-gaap:SubsequentEventType

srt:Maximum, us-gaap:SubsequentEvent


Net
Period End2020-10-30
Value3.25
Percentage of NetLeverageRatio100.0

blkb:PrepaidInsuranceCurrentandLongterm

blkb:PrepaidInsuranceCurrentandLongterm


Prepaid
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-312016-12-31
Value4991000.06397000.01426000.02079000.02638000.02994000.01585000.01087000.01310000.0308000.0
Percentage of PrepaidInsuranceCurrentandLongterm100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

blkb:PrepaidSoftwareMaintenanceAndSubscriptionsCurrent

blkb:PrepaidSoftwareMaintenanceAndSubscriptionsCurrent


Prepaid
Period End2020-12-312019-12-31
Value1916
Percentage of PrepaidSoftwareMaintenanceAndSubscriptionsCurrent100.0100.0

blkb:PrepaidSoftwareMaintenanceCurrent

blkb:PrepaidSoftwareMaintenanceCurrent


Prepaid
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value28281923242416
Percentage of PrepaidSoftwareMaintenanceCurrent100.0100.0100.0100.0100.0100.0100.0

blkb:PrepaidSoftwareMaintenanceCurrentAndLongTerm

blkb:PrepaidSoftwareMaintenanceCurrentAndLongTerm


Prepaid
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value323324282830242831272121231918181720141512129.4119.489.7855.0246.2846.8756.6038.5955.5045.53
Percentage of PrepaidSoftwareMaintenanceCurrentAndLongTerm100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

blkb:SecurityIncidentCumulativeAccruedInsuranceRecoveries

blkb:SecurityIncidentCumulativeAccruedInsuranceRecoveries


Security
Period End2021-06-302021-03-31
Value3322
Percentage of SecurityIncidentCumulativeAccruedInsuranceRecoveries100.0100.0

blkb:SecurityIncidentCumulativeExpense

blkb:SecurityIncidentCumulativeExpense


Security
Period End2021-06-302021-03-31
Value3422
Percentage of SecurityIncidentCumulativeExpense100.0100.0

blkb:TaxesPrepaidAndReceivableCurrentAndLongTerm

blkb:TaxesPrepaidAndReceivableCurrentAndLongTerm


Taxes
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value1.4741.4861.8910.8470.8420.8430.8491.9953.5863.9542.0556.3191414104.1114.8926.3988.4399.1211.1952.7556.5968.9911.1120.8210.9921.767.398
Percentage of TaxesPrepaidAndReceivableCurrentAndLongTerm100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

blkb:UnrecognizedTaxBenefitCurrentandLongterm

blkb:UnrecognizedTaxBenefitCurrentandLongterm


Unrecognized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-312012-12-31
Value3563000.03546000.03351000.03833000.03833000.03821000.03758000.03633000.03747000.03609000.02719000.03017000.03112000.03692000.01972000.03609000.03452000.03359000.03295000.03029000.03299000.03197000.03147000.03791000.03698000.03846000.0
Percentage of UnrecognizedTaxBenefitCurrentandLongterm100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:EntityCommonStockSharesOutstanding

dei:EntityCommonStockSharesOutstanding


Entity
Period End2021-08-022021-04-282021-02-102020-10-28
Value48484849
Percentage of EntityCommonStockSharesOutstanding100.0100.0100.0100.0

us-gaap:AccountsPayableTradeCurrent

us-gaap:AccountsPayableTradeCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value303527314144473435323425312324171720231927181913181111138.9049.469108.4495.7259.74613101712139.908139.8589.88310
Percentage of AccountsPayableTradeCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccruedInsuranceCurrentAndNoncurrent

us-gaap:AccruedInsuranceCurrentAndNoncurrent


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
Value2526000.02389000.02341000.02781000.02991000.02416000.02399000.01777000.01806000.01841000.01497000.02411000.02885000.02975000.02615000.02479000.02822000.02683000.01495000.02049000.02564000.03491000.02356000.02802000.02281000.02440000.02707000.02459000.0
Percentage of AccruedInsuranceCurrentAndNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccruedLiabilitiesAndOtherLiabilities

us-gaap:AccruedLiabilitiesAndOtherLiabilities


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value6562636064567970665956515347605354466251524565525259
Percentage of AccruedLiabilitiesAndOtherLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccruedProfessionalFeesCurrentAndNoncurrent

us-gaap:AccruedProfessionalFeesCurrentAndNoncurrent


Accrued
Period End2021-06-302021-03-312020-12-312019-12-31
Value17124.8080.087
Percentage of AccruedProfessionalFeesCurrentAndNoncurrent100.0100.0100.0100.0

us-gaap:AccruedVacationCurrentAndNoncurrent

us-gaap:AccruedVacationCurrentAndNoncurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value2206000.02304000.02311000.02300000.02278000.02145000.02232000.02040000.02041000.02101000.02352000.02364000.02366000.02277000.02458000.02626000.02598000.02169000.02214000.02398000.02256000.02221000.02446000.01847000.0
Percentage of AccruedVacationCurrentAndNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivable us-gaap:ValuationAllowancesAndReservesType

us-gaap:AllowanceForDoubtfulAccountsReceivable

blkb:AllowanceforReturns


Allowance
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value1276000.01082000.01617000.01618000.01518000.0
Percentage of AllowanceForDoubtfulAccountsReceivable100.0100.0100.0100.0100.0

us-gaap:AllowanceForCreditLoss


Allowance
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value9016000.09645000.07408000.04310000.04011000.0
Percentage of AllowanceForDoubtfulAccountsReceivable706.6891.4458.1266.4264.2

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent


Allowance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value9.9111010109.0255.9285.5294.7915.2315.1284.7224.5185.5015.485.1414.543.7383.3283.2914.0974.3864.5414.9434.4484.4334.3934.5394.3815.2595.3945.6136.8097.5427.568.5464.6634.2083.953.9132.942.8262.6362.6873.559
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:AssetsFairValueDisclosure

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Assets
Period End2021-06-302021-03-312019-03-312018-12-312018-09-302017-12-312014-03-31
Value2061000.02851000.01239000.02260000.04558000.01283000.093000.0
Percentage of AssetsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetsFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Assets
Period End2021-06-302021-03-312019-03-312018-12-312018-09-302017-12-312014-03-31
Value2061000.02851000.01239000.02260000.04558000.01283000.093000.0
Percentage of AssetsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0

us-gaap:CapitalizedComputerSoftwareAccumulatedAmortization

us-gaap:CapitalizedComputerSoftwareAccumulatedAmortization


Capitalized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value52374630179.2163.839
Percentage of CapitalizedComputerSoftwareAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0

us-gaap:CapitalizedComputerSoftwareGross

us-gaap:CapitalizedComputerSoftwareGross


Capitalized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312011-12-312010-12-31
Value164139121845528131.10.2
Percentage of CapitalizedComputerSoftwareGross100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CapitalizedComputerSoftwareNet

us-gaap:CapitalizedComputerSoftwareNet


Capitalized
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value111101948781756862575448444137322723198.94.22.01.1
Percentage of CapitalizedComputerSoftwareNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CapitalizedContractCostNet

us-gaap:CapitalizedContractCostNet


Capitalized
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
Value818384868986908990888577
Percentage of CapitalizedContractCostNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CapitalizedContractCostNetCurrent

us-gaap:CapitalizedContractCostNetCurrent


Capitalized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value313131323231333232323128
Percentage of CapitalizedContractCostNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CapitalizedSoftwareDevelopmentCostsForSoftwareSoldToCustomers

us-gaap:CapitalizedSoftwareDevelopmentCostsForSoftwareSoldToCustomers


Capitalized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value116113111108106105101
Percentage of CapitalizedSoftwareDevelopmentCostsForSoftwareSoldToCustomers100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-31
Value462282644234452257577272386244449205324195640156285171370270155
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiability

us-gaap:ContractWithCustomerLiability


Contract
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
Value345294316328337290316322329285298278
Percentage of ContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiability us-gaap:ProductOrService

blkb:Recurring


Contract
Period End2020-12-312019-12-312018-12-312017-12-31
Value303302286265
Percentage of ContractWithCustomerLiability95.995.896.195.3

us-gaap:TechnologyService


Contract
Period End2020-12-312019-12-312018-12-312017-12-31
Value13131113
Percentage of ContractWithCustomerLiability4.14.23.94.7

us-gaap:ContractWithCustomerLiabilityNoncurrent

us-gaap:ContractWithCustomerLiabilityNoncurrent


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value5749000.04495000.04678000.05803000.04626000.01715000.01802000.02014000.02324000.04290000.02564000.03643000.0
Percentage of ContractWithCustomerLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentCarryingAmount

us-gaap:DebtInstrumentCarryingAmount


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302016-03-312015-12-312015-10-022015-09-302015-06-302015-03-312014-12-312014-09-302013-12-31
Value547553534509489531468504562585388427481469440340390343376405424410429243259287282172152
Percentage of DebtInstrumentCarryingAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentCarryingAmount us-gaap:CreditFacility

us-gaap:Mortgages


Debt
Period End2021-06-302021-03-312020-12-312020-09-30
Value60606060
Percentage of DebtInstrumentCarryingAmount11.010.911.311.9

us-gaap:RevolvingCreditFacility


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302016-03-312015-12-312015-10-022015-09-302015-06-302015-03-312014-12-312014-09-302013-12-31
Value909369169207247187221277298100135188173143399018021223925824226175891161100.070
Percentage of DebtInstrumentCarryingAmount16.416.913.033.242.546.539.943.949.451.025.731.739.137.032.511.723.252.656.459.260.859.260.830.834.640.739.20.046.0

us-gaap:SecuredDebt


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302016-03-312015-12-312015-10-022015-09-302015-06-302015-03-312014-12-312014-09-302014-02-282013-12-31
Value39539740027527727928128328528628829029229429629830016216416516616716816816917017117217582
Percentage of DebtInstrumentCarryingAmount72.271.874.954.156.752.560.156.150.649.074.368.160.762.767.387.676.847.443.640.839.240.839.269.265.459.360.8100.00.054.0

us-gaap:DebtInstrumentCarryingAmount us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty

blkb:GlobalHQ


Debt
Period End2020-08-312020-06-17
Value6163
Percentage of DebtInstrumentCarryingAmount0.00.0

us-gaap:DebtInstrumentCarryingAmount us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty, us-gaap:LongtermDebtType

blkb:GlobalHQ, blkb:SeniorSecuredNoteSeriesA1


Debt
Period End2020-08-31
Value49
Percentage of DebtInstrumentCarryingAmount0.0

blkb:GlobalHQ, blkb:SeniorSecuredNoteSeriesA2


Debt
Period End2020-08-31
Value12
Percentage of DebtInstrumentCarryingAmount0.0

us-gaap:DebtInstrumentInterestRateEffectivePercentage

us-gaap:DebtInstrumentInterestRateEffectivePercentage


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value2.753.143.212.890.02780.02790.03180.03610.03780.03670.03610.03560.03410.03250.02710.02740.02480.02480.02440.02330.0230.0230.02490.02390.02280.01850.02150.02390.02390.02140.02460.0240.02650.02880.02840.0289
Percentage of DebtInstrumentInterestRateEffectivePercentage100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentInterestRateEffectivePercentage us-gaap:CreditFacility

us-gaap:LoansPayable


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value5.05.05.05.00.050.050
Percentage of DebtInstrumentInterestRateEffectivePercentage181.8159.2155.8173.0179.9179.20.0

us-gaap:LongTermDebt


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value2.763.153.222.90.02780.02780.03180.03610.03780.03670.03610.03550.03410.03250.02710.02740.02480.02480.02440.02330.02310.0230.0250.0240.02290.01850.02170.02410.02410.02110.02450.02380.02640.0286
Percentage of DebtInstrumentInterestRateEffectivePercentage100.4100.3100.3100.3100.099.6100.0100.0100.0100.0100.099.7100.0100.0100.0100.0100.0100.0100.0100.0100.4100.0100.4100.4100.4100.0100.9100.8100.898.699.699.299.699.3

us-gaap:RevolvingCreditFacility


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value1.731.81.832.210.02410.02510.03110.0370.03920.0390.04130.03990.03580.03260.02840.03380.02930.02360.02340.02190.02160.02150.02610.02320.02090.01560000.01950.02290.02210.02480.02680.0265
Percentage of DebtInstrumentInterestRateEffectivePercentage62.957.357.076.586.790.097.8102.5103.7106.3114.4112.1105.0100.3104.8123.4118.195.295.994.093.993.5104.897.191.784.30.00.00.091.193.192.193.693.193.3

us-gaap:SecuredDebt


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value2.63.133.122.770.03020.02990.03220.03540.03650.03430.03440.03350.0330.03240.02640.02640.02350.02620.02580.02530.02520.02510.02440.02420.02420.02030.02150.02390.02390.02390.02640.02640.02890.03140.0314
Percentage of DebtInstrumentInterestRateEffectivePercentage94.599.797.295.8108.6107.2101.398.196.693.595.394.196.899.797.496.494.8105.6105.7108.6109.6109.198.0101.3106.1109.7100.0100.0100.0111.7107.3110.0109.1109.0110.6

us-gaap:ShortTermDebt


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value2.612.672.612.390.02290.030.03050.03540.0390.03750.03770.03620.03490.0330.03030.02740.02480.0250.02340.02140.02130.02110.01830.01790.01780.01390.01490.01740.01740.02390.02640.02640.02890.0314
Percentage of DebtInstrumentInterestRateEffectivePercentage94.985.081.382.782.4107.595.998.1103.2102.2104.4101.7102.3101.5111.8100.0100.0100.895.991.892.691.773.574.978.175.169.372.872.8111.7107.3110.0109.1109.0

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet


Debt
Period End2021-06-302021-03-312020-12-312020-10-302020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-06-022016-12-31
Value-2422000.0-2716000.0-3144000.0-2000000.0-1383000.0-913000.0-1031000.0-1150000.0-1269000.0-1388000.0-1507000.0-1626000.0-1745000.0-1864000.0-1983000.0-2102000.0-2220000.0-2738000.01800000.0-1476000.0
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtIssuanceCostsLineOfCreditArrangementsNet

us-gaap:DebtIssuanceCostsLineOfCreditArrangementsNet


Debt
Period End2020-12-312019-12-312018-12-312017-12-312017-06-302016-12-31
Value1500000.0600000.0900000.01200000.01400000.0600000.0
Percentage of DebtIssuanceCostsLineOfCreditArrangementsNet100.0100.0100.0100.0100.0100.0

us-gaap:DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible

us-gaap:DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible


Decrease
Period End2020-12-31
Value1100000.0
Percentage of DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible100.0

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredIncomeTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value1161318876767273
Percentage of DeferredIncomeTaxLiabilities100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsDeferredIncome

us-gaap:DeferredTaxAssetsDeferredIncome


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value524000.0682000.0854000.0859000.05371000.06049000.07332000.03850000.0
Percentage of DeferredTaxAssetsDeferredIncome100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsGross


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value92935146555556
Percentage of DeferredTaxAssetsGross100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards


Deferred
Period End2020-12-312019-12-31
Value5592000.09203000.0
Percentage of DeferredTaxAssetsOperatingLossCarryforwards100.0100.0

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value9111000.07487000.05607000.05440000.06781000.06593000.05790000.04286000.0
Percentage of DeferredTaxAssetsOther100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value1711119.611117.8484.0723.818
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value2399000.01374000.01242000.01379000.01294000.0780000.01655000.01938000.0
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesDeferredExpenseCapitalizedSoftware

us-gaap:DeferredTaxLiabilitiesDeferredExpenseCapitalizedSoftware


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value2826191414
Percentage of DeferredTaxLiabilitiesDeferredExpenseCapitalizedSoftware100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value4546434744495455
Percentage of DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesLeasingArrangements

us-gaap:DeferredTaxLiabilitiesLeasingArrangements


Deferred
Period End2020-12-312019-12-312018-12-31
Value12320.0
Percentage of DeferredTaxLiabilitiesLeasingArrangements100.0100.00.0

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value0.3980.3150.9260.99521127.5935.752
Percentage of DeferredTaxLiabilitiesOther100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value8.4584.4464.4444.5529.2101011
Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeAssets us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:DerivativeAssets

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Derivative
Period End2021-06-302021-03-312019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-09-302014-03-31
Value2061000.02851000.01239000.02260000.04558000.03789000.02978000.01283000.0223000.01328000.0343000.0206000.0406000.0214000.093000.0
Percentage of DerivativeAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeAssets us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Derivative
Period End2021-06-302021-03-312019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-09-302014-03-31
Value2061000.02851000.01239000.02260000.04558000.03789000.02978000.01283000.0223000.01328000.0343000.0206000.0406000.0214000.093000.0
Percentage of DerivativeAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeAssetsNoncurrent us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation

us-gaap:DerivativeAssetsNoncurrent

us-gaap:OtherAssets, us-gaap:InterestRateSwap, us-gaap:DesignatedAsHedgingInstrument


Derivative
Period End2021-06-302021-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value2061000.02851000.00001239000.02260000.04558000.03789000.02978000.01138000.0000206000.0000406000.0
Percentage of DerivativeAssetsNoncurrent100.0100.00.00.00.0100.0100.0100.0100.0100.0100.00.00.00.0100.00.00.00.0100.0

us-gaap:DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation

us-gaap:DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral

us-gaap:InterestRateSwap, us-gaap:DesignatedAsHedgingInstrument


Derivative
Period End2021-06-302021-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value2061000.02851000.00001239000.02260000.04558000.03789000.02978000.01283000.0223000.0336000.0343000.0206000.0000406000.0
Percentage of DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral100.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0

us-gaap:DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation

us-gaap:DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral

us-gaap:InterestRateSwap, us-gaap:DesignatedAsHedgingInstrument


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value138000.01431000.04159000.03957000.05233000.05979000.01757000.02318000.01826000.0433000.0186000.000229000.00328000.000163000.0654000.0-1329000.01135000.0438000.01312000.0873000.01030000.0268000.00553000.0427000.0
Percentage of DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.00.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0

us-gaap:DerivativeLiabilities us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:DerivativeLiabilities

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-03-312017-09-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-06-302013-12-31
Value138000.01431000.04159000.03957000.05233000.05979000.01757000.02318000.01826000.0433000.0186000.0229000.0369000.0163000.0654000.01329000.01135000.0438000.01312000.0873000.01030000.0268000.0553000.0427000.0
Percentage of DerivativeLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeLiabilities us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-03-312017-09-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-06-302013-12-31
Value138000.01431000.04159000.03957000.05233000.05979000.01757000.02318000.01826000.0433000.0186000.0229000.0369000.0163000.0654000.01329000.01135000.0438000.01312000.0873000.01030000.0268000.0553000.0427000.0
Percentage of DerivativeLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeLiabilitiesCurrent us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation

us-gaap:DerivativeLiabilitiesCurrent

blkb:Accruedexpensesandothercurrentliabilities, us-gaap:InterestRateSwap, us-gaap:DesignatedAsHedgingInstrument


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312014-09-302014-06-302013-12-31
Value138000.01431000.02698000.03957000.02515000.00000000000015000.02000.078000.096000.000046000.0
Percentage of DerivativeLiabilitiesCurrent100.0100.0100.0100.0100.00.00.00.00.00.00.00.00.00.00.00.0100.0100.0100.0100.00.00.00.0100.0

us-gaap:DerivativeLiabilitiesNoncurrent

us-gaap:DerivativeLiabilitiesNoncurrent


Derivative
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value4159000.03957000.05233000.05979000.01757000.0
Percentage of DerivativeLiabilitiesNoncurrent100.0100.0100.0100.0100.0

us-gaap:DerivativeLiabilitiesNoncurrent us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation

us-gaap:OtherLiabilities, us-gaap:InterestRateSwap, us-gaap:DesignatedAsHedgingInstrument


Derivative
Period End2020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value1461000.02718000.05979000.01757000.02318000.01826000.0433000.0186000.000229000.00328000.000163000.0654000.0-1329000.01120000.0436000.01234000.0777000.01030000.0268000.00553000.0381000.0
Percentage of DerivativeLiabilitiesNoncurrent35.151.9100.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DerivativeNotionalAmount

us-gaap:DerivativeNotionalAmount


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value390395395275275275
Percentage of DerivativeNotionalAmount100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeNotionalAmount us-gaap:DerivativeInstrumentRisk

blkb:ForwardStartingInterestRateSwaps


Derivative
Period End2021-06-302021-03-312020-12-31
Value120240240
Percentage of DerivativeNotionalAmount30.860.860.8

blkb:November2020Swap1


Derivative
Period End2020-11-30
Value60
Percentage of DerivativeNotionalAmount0.0

blkb:November2020Swap2


Derivative
Period End2020-11-30
Value60
Percentage of DerivativeNotionalAmount0.0

blkb:November2020Swap3


Derivative
Period End2020-11-30
Value120
Percentage of DerivativeNotionalAmount0.0

blkb:November2020Swap4


Derivative
Period End2020-11-30
Value120
Percentage of DerivativeNotionalAmount0.0

us-gaap:DerivativeNotionalAmount us-gaap:DerivativeInstrumentRisk, us-gaap:SubsequentEventType

blkb:July2021Swap, us-gaap:SubsequentEvent


Derivative
Period End2021-07-31
Value75
Percentage of DerivativeNotionalAmount0.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized


Employee
Period End2020-12-31
Value98
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized100.0

us-gaap:EscrowDeposit

us-gaap:EscrowDeposit


Escrow
Period End2021-06-302021-03-312020-12-312020-09-30
Value1324000.01156000.01276000.01205000.0
Percentage of EscrowDeposit100.0100.0100.0100.0

us-gaap:EstimatedInsuranceRecoveries

us-gaap:EstimatedInsuranceRecoveries


Estimated
Period End2021-06-302021-03-312020-12-312020-09-30
Value23156.2882.949
Percentage of EstimatedInsuranceRecoveries100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value-276.591-238.596-257.204-210.956-168.43-127.9749470483024
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value-138.635-118.031-116.648-96.662-77.983-57.74843332418
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization50.149.545.445.846.345.146.047.351.961.3

us-gaap:MarketingRelatedIntangibleAssets


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value-5.918-3.648-16.395-12.444-9.826-7.7536.1374.529
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization2.11.56.45.95.86.16.56.4

us-gaap:TechnologyBasedIntangibleAssets


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value-132.038-115.048-118.268-96.528-74.975-57.5484027
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization47.748.246.045.844.545.043.039.1

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths


Finite
Period End2020-12-31
Value36
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive


Finite
Period End2020-12-31
Value30
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFive100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour


Finite
Period End2020-12-31
Value33
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFour100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree


Finite
Period End2020-12-31
Value33
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearThree100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo


Finite
Period End2020-12-31
Value34
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo100.0

us-gaap:FiniteLivedIntangibleAssetsGross

us-gaap:FiniteLivedIntangibleAssetsGross


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value5545565475244194203212122147462
Percentage of FiniteLivedIntangibleAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsGross us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value28728628027424824717410210148
Percentage of FiniteLivedIntangibleAssetsGross51.851.651.252.459.258.954.247.947.465.7

us-gaap:MarketingRelatedIntangibleAssets


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value3434484916161510
Percentage of FiniteLivedIntangibleAssetsGross6.36.28.99.53.93.94.74.9

us-gaap:TechnologyBasedIntangibleAssets


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value23223321119314714812694
Percentage of FiniteLivedIntangibleAssetsGross41.941.938.736.835.135.439.444.2

us-gaap:HostingArrangementServiceContractImplementationCostCapitalizedAccumulatedAmortization

us-gaap:HostingArrangementServiceContractImplementationCostCapitalizedAccumulatedAmortization


Hosting
Period End2021-06-302021-03-312020-12-312020-09-30
Value2000000.01600000.01100000.0700000.0
Percentage of HostingArrangementServiceContractImplementationCostCapitalizedAccumulatedAmortization100.0100.0100.0100.0

us-gaap:HostingArrangementServiceContractImplementationCostCapitalizedAfterAccumulatedAmortization

us-gaap:HostingArrangementServiceContractImplementationCostCapitalizedAfterAccumulatedAmortization


Hosting
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value12111111108.8817.294
Percentage of HostingArrangementServiceContractImplementationCostCapitalizedAfterAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeTaxExaminationPenaltiesAndInterestAccrued

us-gaap:IncomeTaxExaminationPenaltiesAndInterestAccrued


Income
Period End2020-12-312019-12-312018-12-312017-12-31
Value1100000.01000000.0700000.0800000.0
Percentage of IncomeTaxExaminationPenaltiesAndInterestAccrued100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2020-12-31
Value10
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear


Lessee
Period End2020-09-30
Value5055000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear100.0

us-gaap:LiabilitiesFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:LiabilitiesFairValueDisclosure

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value138000.01431000.04159000.03957000.05233000.05979000.01757000.02318000.01826000.0433000.0186000.0
Percentage of LiabilitiesFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value138000.01431000.04159000.03957000.05233000.05979000.01757000.02318000.01826000.0433000.0186000.0
Percentage of LiabilitiesFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LineOfCreditFacilityCurrentBorrowingCapacity

us-gaap:LineOfCreditFacilityCurrentBorrowingCapacity


Line
Period End2020-12-31
Value429
Percentage of LineOfCreditFacilityCurrentBorrowingCapacity100.0

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity


Line
Period End2020-10-302017-06-022014-02-282012-02-29
Value900700325325
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity100.0100.0100.0100.0

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity us-gaap:CreditFacility

us-gaap:RevolvingCreditFacility


Line
Period End2020-10-302017-06-02
Value500400
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity55.657.1

us-gaap:SecuredDebt


Line
Period End2020-10-302017-06-02
Value400300
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity44.442.9

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity us-gaap:CreditFacility, us-gaap:SubsequentEventType

blkb:Swinglineloans, us-gaap:SubsequentEvent


Line
Period End2020-10-30
Value50
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity5.6

us-gaap:ForeignLineOfCredit, us-gaap:SubsequentEvent


Line
Period End2020-10-30
Value100
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity11.1

us-gaap:RevolvingCreditFacility, us-gaap:SubsequentEvent


Line
Period End2020-10-30
Value500
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity55.6

us-gaap:SecuredDebt, us-gaap:SubsequentEvent


Line
Period End2020-10-30
Value400
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity44.4

us-gaap:StandbyLettersOfCredit, us-gaap:SubsequentEvent


Line
Period End2020-10-30
Value50
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity5.6

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity us-gaap:SubsequentEventType

us-gaap:SubsequentEvent


Line
Period End2020-10-30
Value900
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive


Long
Period End2020-12-312020-09-30
Value5355
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths


Long
Period End2021-06-302021-03-312020-12-31
Value121212
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths100.0100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive


Long
Period End2020-12-312020-09-30
Value4311.609
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour


Long
Period End2021-06-302021-03-312020-12-312020-09-30
Value451455111.983
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour100.0100.0100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree


Long
Period End2021-06-302021-03-312020-12-312020-09-30
Value111111438
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree100.0100.0100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo


Long
Period End2021-06-302021-03-312020-12-312020-09-30
Value11111210
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo100.0100.0100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear


Long
Period End2021-06-302021-03-312020-09-30
Value5594000.08378000.02139000.0
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear100.0100.0100.0

us-gaap:LongTermDebtPercentageBearingFixedInterestRate us-gaap:LongtermDebtType

us-gaap:LongTermDebtPercentageBearingFixedInterestRate

blkb:SeniorSecuredNoteSeriesA1


Long
Period End2020-08-31
Value5.12
Percentage of LongTermDebtPercentageBearingFixedInterestRate100.0

blkb:SeniorSecuredNoteSeriesA2


Long
Period End2020-08-31
Value5.61
Percentage of LongTermDebtPercentageBearingFixedInterestRate109.6

us-gaap:LongTermDebtPercentageBearingFixedInterestRate us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty, us-gaap:LongtermDebtType

blkb:GlobalHQ, blkb:SeniorSecuredNoteSeriesA1


Long
Period End2020-08-31
Value5.12
Percentage of LongTermDebtPercentageBearingFixedInterestRate100.0

blkb:GlobalHQ, blkb:SeniorSecuredNoteSeriesA2


Long
Period End2020-08-31
Value5.61
Percentage of LongTermDebtPercentageBearingFixedInterestRate109.6

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent


Operating
Period End2020-12-312019-12-31
Value5.75.96
Percentage of OperatingLeaseWeightedAverageDiscountRatePercent100.0100.0

us-gaap:OperatingLossCarryforwards us-gaap:IncomeTaxAuthority

us-gaap:OperatingLossCarryforwards

us-gaap:DomesticCountry


Operating
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value18212433282932417741
Percentage of OperatingLossCarryforwards100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignCountry


Operating
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value2.11924316.47.06.93.13.6
Percentage of OperatingLossCarryforwards11.490.2100.893.122.223.921.67.44.7

us-gaap:StateAndLocalJurisdiction


Operating
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value21232536364249525750
Percentage of OperatingLossCarryforwards115.7111.2103.3110.1126.7144.0155.3125.873.9122.3

us-gaap:OtherLiabilities

us-gaap:OtherLiabilities


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value5.9665.6636.3049.2485.9117.6067.9499.642108.9776.7858.6469.6958.3318.7275.0774.4824.9198.8426.8087.138.4687.9119.3189.971109.7911122171716161413
Percentage of OtherLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherLongTermDebt

us-gaap:OtherLongTermDebt


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value2232000.02232000.03926000.03926000.03926000.05083000.00
Percentage of OtherLongTermDebt100.0100.0100.0100.0100.0100.00.0

us-gaap:OtherRestrictedAssetsCurrent

us-gaap:OtherRestrictedAssetsCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value5390000.0945000.0321000.04901000.01284000.01205000.0524000.07784000.05349000.05474000.01753000.05501000.05528000.06373000.01536000.00
Percentage of OtherRestrictedAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:PrepaidExpenseAndOtherAssets

us-gaap:PrepaidExpenseAndOtherAssets


Prepaid
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value174172151149152147133139143140125134139130807070756870747465675348494948504450
Percentage of PrepaidExpenseAndOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedCash

us-gaap:RestrictedCash


Restricted
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value433254607202545
Percentage of RestrictedCash100.0100.0100.0100.0100.0

us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue

us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue


Restricted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value43425560920342123254524335421941817929517061013928916435313819511525563615814050444310741272668251820402110141612
Percentage of RestrictedCashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueRemainingPerformanceObligation

us-gaap:RevenueRemainingPerformanceObligation


Revenue
Period End2021-06-302021-03-312020-12-312020-09-30
Value797776755812
Percentage of RevenueRemainingPerformanceObligation100.0100.0100.0100.0

us-gaap:RevenueRemainingPerformanceObligationPercentage

us-gaap:RevenueRemainingPerformanceObligationPercentage


Revenue
Period End2021-06-302021-03-312020-12-312020-09-30
Value55.060.060.060.0
Percentage of RevenueRemainingPerformanceObligationPercentage100.0100.0100.0100.0

us-gaap:SecurityDeposit

us-gaap:SecurityDeposit


Security
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value754000.0808000.0861000.0864000.0885000.0934000.0945000.01228000.01020000.02793000.02741000.02706000.02305000.0
Percentage of SecurityDeposit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:RestrictedStock


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value79.5479.9275.4661.049.4943.2832.2829.324.5825.22
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStockUnitsRSU


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value63.6280.4979.7861.0547.5140.5132.8628.8427.5525.6
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue80.0100.7105.7100.196.093.6101.898.4112.1101.5

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueNonvested us-gaap:AwardType

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueNonvested

us-gaap:RestrictedStock


Sharebased
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value7310479118757235
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueNonvested100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStockUnitsRSU


Sharebased
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value67392846292611
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueNonvested91.738.136.439.239.536.133.8

us-gaap:StockRepurchaseProgramAuthorizedAmount1

us-gaap:StockRepurchaseProgramAuthorizedAmount1


Stock
Period End2020-11-30
Value250
Percentage of StockRepurchaseProgramAuthorizedAmount1100.0

us-gaap:StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1

us-gaap:StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1


Stock
Period End2021-06-302021-03-312020-12-31
Value150180209
Percentage of StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1100.0100.0100.0

us-gaap:TaxCreditCarryforwardAmount us-gaap:IncomeTaxAuthority

us-gaap:TaxCreditCarryforwardAmount

us-gaap:DomesticCountry


Tax
Period End2020-12-312019-12-312018-12-312017-12-312014-12-312013-12-312012-12-31
Value149.86.53.61.96.33.6
Percentage of TaxCreditCarryforwardAmount100.0100.0100.0100.0100.0100.0100.0

us-gaap:StateAndLocalJurisdiction


Tax
Period End2020-12-312019-12-312018-12-312017-12-312014-12-312013-12-312012-12-31
Value30161413121211
Percentage of TaxCreditCarryforwardAmount219.1163.3216.9375.0657.9193.7322.2

us-gaap:TaxesPayableCurrentAndNoncurrent

us-gaap:TaxesPayableCurrentAndNoncurrent


Taxes
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value14161913124.6596.8355.9326.3914.8436.2043.2473.273.4655.5172.5842.632.3313.4523.1314.5233.5023.9233.8244.1033.1744.2855.1058.3416.0765.435.4336.1476.4867.607
Percentage of TaxesPayableCurrentAndNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnbilledContractsReceivable

us-gaap:UnbilledContractsReceivable


Unbilled
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
Value5.5797.66109.7118.6478.1456.2336.0655.6916.0434.1613.136
Percentage of UnbilledContractsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate


Unrecognized
Period End2020-12-312017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value4200000.02400000.02400000.02200000.02400000.02300000.02300000.02100000.02100000.02300000.02800000.02500000.03600000.03700000.03700000.04000000.04100000.03200000.03800000.0
Percentage of UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Line plots across dimensions of each concept


COGS Ratio
us-gaap:ProductOrService
(None,)
C O G S  Ratious-gaap: Product Or Service
TTM Greenblatt ROC
_
(None,)
T T M  Greenblatt  R O C_
us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:IncomeStatementLocation
(None,)
Allocated Share Based Compensation Expenseus-gaap: Income Statement Location
us-gaap:CostOfGoodsAndServicesSold
us-gaap:ProductOrService
(None,)
Cost Of Goods And Services Soldus-gaap: Product Or Service
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService
(None,)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Product Or Service
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:StatementGeographical
(None,)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Statement Geographical
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:StatementBusinessSegments
(None,)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Statement Business Segments
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:PropertyPlantAndEquipmentNet
us-gaap:StatementGeographical
(None,)
Property Plant And Equipment Netus-gaap: Statement Geographical
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
us-gaap:OtherComprehensiveIncomeLocation
(None,)
Accumulated Other Comprehensive Income Loss Net Of Taxus-gaap: Other Comprehensive Income Location
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents
(None,)
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Valueus-gaap: Statement Equity Components