CBZ


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:CommonStockSharesIssued

us-gaap:CommonStockSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:CostOfRevenue
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:GeneralAndAdministrativeExpense
us-gaap:ConsolidationItems

us-gaap:GrossProfit
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:IncomeLossFromContinuingOperations

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:IncomeTaxExpenseBenefit

us-gaap:InterestExpenseDebt
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:LongtermDebtType

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:NonoperatingIncomeExpense
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingIncomeLoss
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OtherNonoperatingIncomeExpense
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:ProfitLoss

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

us-gaap:Revenues

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:OtherAssetsCurrent

us-gaap:AssetsNoncurrent

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:Goodwill
us-gaap:BusinessAcquisition
us-gaap:StatementBusinessSegments

us-gaap:IntangibleAssetsNetIncludingGoodwill

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent

us-gaap:AccountsPayableCurrent

us-gaap:AccruedIncomeTaxesCurrent

us-gaap:LiabilitiesCurrent

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OtherLiabilitiesCurrent

us-gaap:LiabilitiesNoncurrent

us-gaap:LongTermDebtNoncurrent

us-gaap:UnsecuredLongTermDebt

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:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:TreasuryStockValue

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:DepreciationDepletionAndAmortization

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:ProfitLoss

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquireInvestments

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxAssetsNet

us-gaap:UnrecognizedTaxBenefits

us-gaap:DeferredTaxAssetsValuationAllowance

cbz:AllowanceForDoubtfulAccountsReceivableWriteOffsAndNetOfRecoveries
cbz:AssetAcquisition, us-gaap:SubsequentEventType
cbz:AssetAcquisitionEstimatedAnnualizedRevenue

cbz:AvailableForSaleSecuritiesDebtSecuritiesFairMarketValueAdjustment

cbz:AvailableForSaleSecuritiesDebtSecuritiesMaturities

cbz:AvailableForSaleSecuritiesDebtSecuritiesPurchases

cbz:AvailableForSaleSecuritiesDebtSecuritiesRedemptions
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType
cbz:BusinessAcquisitionEstimatedAnnualizedRevenue

cbz:BusinessCombinationContingentConsiderationLiabilityOtherAdjustmentsBasedOnProjectedFutureResultsOfAcquisition
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByLiabilityClass
cbz:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityChangeInNetPresentValueOfContingencies

cbz:IncreaseDecreaseInBondPremium

cbz:IncreaseDecreaseInFundsHeldForClientInvestingActivities

cbz:IncrementalCommonSharesAttributableToRestrictedStockAwards

cbz:IncrementalCommonSharesAttributableToStockOptions

cbz:NetIncreaseDecreaseInClientFundsObligations

cbz:NumberOfCommonSharesIssued

cbz:OperatingLeasePaymentsToRelatedParties

cbz:PaymentOfContingentConsiderationOfAcquisitions

cbz:PerformanceShareUnits

cbz:ProvisionForDoubtfulAccountsNetOfRecoveries
us-gaap:AwardType
cbz:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPercentageOfTargetEarningsPerShare
us-gaap:AwardType
cbz:ShareBasedCompensationArrangementsByShareBasedPaymentAwardPerformanceStockOfTotalGrowthInRevenue
us-gaap:Range, us-gaap:AwardType
cbz:ShareBasedCompensationArrangementsByShareBasedPaymentAwardPerformanceStockPercentageOfInitialGrant

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation
us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationEmployeeStockPurchaseProgramRequisiteServicePeriodRecognition
us-gaap:StatementEquityComponents

us-gaap:BusinessAcquisitionsProFormaRevenue
us-gaap:RelatedPartyTransactionsByRelatedParty, us-gaap:SubsequentEventType
us-gaap:StatementScenario, us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

us-gaap:BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable

us-gaap:BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1

us-gaap:CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations

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

us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax

us-gaap:ExcessTaxBenefitFromShareBasedCompensationOperatingActivities
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByLiabilityClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByLiabilityClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByLiabilityClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements
us-gaap:StatementBusinessSegments
us-gaap:GainLossOnSaleOfBusiness

us-gaap:GainLossRelatedToLitigationSettlement
us-gaap:ConsolidationItems
us-gaap:LitigationCase

us-gaap:GoodwillAcquiredDuringPeriod

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities

us-gaap:IncreaseDecreaseInOtherOperatingAssets

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities

us-gaap:IncrementalCommonSharesAttributableToContingentlyIssuableShares
us-gaap:LitigationCase
us-gaap:LitigationSettlementAmountAwardedToOtherParty
us-gaap:LitigationCase
us-gaap:LossContingencyDamagesSoughtValue

us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinuingOperations

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeasePayments

us-gaap:OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeInstrumentRisk, us-gaap:IncomeStatementLocation

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax
us-gaap:DerivativeInstrumentRisk
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
us-gaap:StatementEquityComponents

us-gaap:OtherOperatingActivitiesCashFlowStatement

us-gaap:PaymentsForPreviousAcquisition

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsToAcquireBusinessesGross
us-gaap:BusinessAcquisition

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired

us-gaap:ProceedsFromLongTermLinesOfCredit

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromSaleMaturityAndCollectionsOfInvestments

us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ProvisionForDoubtfulAccounts
us-gaap:LiabilityForCatastropheClaimsByCatastrophicEvent

us-gaap:RepaymentsOfLongTermLinesOfCredit

us-gaap:RestrictedStockExpense
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresIntrinsicValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodIntrinsicValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
us-gaap:StatementEquityComponents
us-gaap:SharesPaidForTaxWithholdingForShareBasedCompensation
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesAcquisitions
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensation

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised
us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueAcquisitions
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised
us-gaap:StatementEquityComponents

us-gaap:StockOptionPlanExpense
us-gaap:SubsequentEventType
us-gaap:StockRepurchasedDuringPeriodShares
us-gaap:SubsequentEventType
us-gaap:StockRepurchasedDuringPeriodValue
us-gaap:StatementEquityComponents
us-gaap:TreasuryStockSharesAcquired
us-gaap:SubsequentEventType

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

cbz:AccumulatedOtherComprehensiveIncomeUnrealizedHoldingGainLossOnDerivativesArisingDuringPeriodTax

cbz:AccumulatedOtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
us-gaap:StatementBusinessSegments
cbz:BusinessCombinationAggregatedGoodwillAndIntangibleAssetsAcquired

cbz:BusinessCombinationContingentConsiderationLiabilityFairValue

cbz:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFundsHeldForClients
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisition
cbz:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseLiabilityCurrent
us-gaap:BusinessAcquisition
cbz:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseLiabilityNoncurrent
us-gaap:BusinessAcquisition
cbz:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightOfUseAssetNet

cbz:CashEquivalentsIncludedInFundsHeldForClients

cbz:ClientFundObligations
us-gaap:FairValueByFairValueHierarchyLevel
cbz:ContingentPurchasePriceLiabilitiesAtFairValue

cbz:CorporateAndMunicipalBondsNetParValue

cbz:CurrentAssetsBeforeFundsHeldForClients

cbz:CurrentLiabilitiesBeforeClientFundObligations

cbz:DeferredTaxAssetsLeaseCosts

cbz:DeferredTaxAssetsTaxCreditCarryForwardsState

cbz:DeferredTaxAssetsTaxCreditCarryForwardsStateAndLocal

cbz:DeferredTaxLiabilitiesIntangibleAssets
us-gaap:FairValueByFairValueHierarchyLevel
cbz:DefinedBenefitPlanFairValueOfPlanLiabilities

cbz:IntangibleAssetsIncludingGoodwillGross

cbz:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour

cbz:LicenseBondsOutstandingAmount

cbz:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExercisable

cbz:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExercisableIntrinsicValue

cbz:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsVestedAndExercisedWeightedAverageExercisePrice

us-gaap:AccountsReceivableGrossCurrent

us-gaap:AccruedIncomeTaxesNoncurrent

us-gaap:AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AociLossCashFlowHedgeCumulativeGainLossAfterTax

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis

us-gaap:AvailableForSaleSecuritiesDebtSecurities
us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:BilledContractReceivables

us-gaap:BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh
us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationContingentConsiderationLiability
us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationContingentConsiderationLiabilityCurrent
us-gaap:BalanceSheetLocation

us-gaap:BusinessCombinationContingentConsiderationLiabilityNoncurrent
us-gaap:BalanceSheetLocation

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFinancialLiabilities
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
us-gaap:FiniteLivedIntangibleAssetsByMajorClass, us-gaap:StatementBusinessSegments
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet
us-gaap:Range
us-gaap:DebtInstrumentInterestRateEffectivePercentage

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss

us-gaap:DebtWeightedAverageInterestRate

us-gaap:DeferredCompensationLiabilityClassifiedNoncurrent
us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:DeferredCompensationPlanAssets
us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsTaxDeferredExpense

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssets

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:DefinedBenefitPlanFairValueOfPlanAssets
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeFairValueOfDerivativeLiability
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeLiabilityNotionalAmount

us-gaap:EmployeeRelatedLiabilitiesCurrent
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByLiabilityClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue

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:FundsHeldForClients
us-gaap:InvestmentType
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk
us-gaap:InterestRateDerivativesAtFairValueNet
us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:LettersOfCreditOutstandingAmount
us-gaap:LongtermDebtType
us-gaap:LongtermDebtType
us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity

us-gaap:LongTermLineOfCredit
us-gaap:LongtermDebtType

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:RestrictedCash

us-gaap:RestrictedCashCurrent
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedIntrinsicValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit
us-gaap:ShareRepurchaseProgram
us-gaap:StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased
us-gaap:ShareRepurchaseProgram
us-gaap:TreasuryStockCarryingBasis

us-gaap:TreasuryStockShares

us-gaap:UnamortizedDebtIssuanceExpense

us-gaap:UnbilledReceivablesCurrent

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued

us-gaap:UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate

Plots across concepts


IncomeStatement
Operating Income Loss
Expenses
Interest Expense Debt
Balance Sheet
Cash And Cash Equivalents At Carrying Value
Assets
Cash And Cash Equivalents At Carrying Value
Current Assets
Cash And Cash Equivalents At Carrying Value
NonCurrent Assets
Other Assets Noncurrent
PropertyPlantAndEquipmentNet
Property Plant And Equipment Net
Liabilities
Operating Lease Liability
Current Liabilities
Accrued Income Taxes Current
Noncurrent Liabilities
Accrued Income Taxes Noncurrent
Stockholders Equity
Accumulated Other Comprehensive Income Loss Net Of Tax
CashFlow
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInOperatingActivities
Share Based Compensation
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInFinancingActivities
Net Cash Provided By Used In Financing Activities
Shares
Weighted Average Number Of Shares Outstanding Basic
OperatingLeaseLiability
Operating Lease Liability Current
NonoperatingIncomeExpense
Other Nonoperating Income Expense
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Remainder Of Fiscal Year
AccountsReceivable
Allowance For Doubtful Accounts Receivable Current

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:CommonStockValue ██████▇▇▇▇▇▇▇▇▇▇▆▆▆▆▆▆▆▅▅▄▃▃▃▃▂▂▂▂▂▁▁▁▁▁▁1.3491.3461.3411.3381.3351.3321.3311.3241.3211.3181.3141.3141.3111.3051.3011.2971.2961.2861.2821.2761.2751.2641.2621.2541.251.1931.1881.1831.1671.161.1491.1311.1311.1261.1241.1191.1171.1121.1111.1081.103NA1.096NANA
 us-gaap:SharesIssued us-gaap:StatementEquityComponents us-gaap:CommonStock██▇▇▇▇▇▆▆▆▅▅▅▅▄▄▄▃▃▃▂▂▂▁134.892134.625134.144133.759133.536133.241133.056132.385132.108131.813131.404131.356131.132130.47130.075129.684129.602128.643128.191127.604127.366126.413126.182125.398NANA118.82NANANA114.957NANANA112.374NANANA111.06NANANA109.626NANA
 us-gaap:SharesIssued us-gaap:StatementEquityComponents us-gaap:TreasuryStock█▇▆▆▅▅▄▄▄▄▃▃▃▃▃▂▂▂▂▂▂▁▁▁82.17381.20980.04579.04678.88178.81177.63777.47677.42876.91276.33275.86375.70375.51575.48474.85574.54774.32374.14774.03974.02773.86173.22873.228NANA69.333NANANA65.993NANANA62.009NANANA61.024NANANA59.578NANA
us-gaap:CommonStockSharesIssued NANA134.144NANANA133.056NANANA131.404NANANA130.075NANANA128.191NANANA126.182NANANA118.82NANANA114.957NANANA112.374NANANA111.06NANANA109.626NANA
us-gaap:CommonStockSharesOutstanding NANA54.099NANANA55.419NANANA55.072NANANA54.591NANANA54.044NANANA52.954NANANA49.487NANANA48.964NANANA50.365NANANA50.036NANANA50.048NANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding ▆▆▆▇▇▇▆▇▇▇███▇▇▇▇▇▅▆▅▅▄▆▅▄▂▄▅▅▁▂▃▃▃▃▃▃▂▃▃▃53.76954.43654.03955.3655.11655.94554.54755.81655.49555.91556.5856.7456.43755.92455.82255.82755.83155.21453.01953.84653.07952.74551.66954.44552.02451.38548.45551.20952.05252.61846.98149.00349.92949.83649.32649.10949.24449.53148.85449.9249.95849.755NA59.57961.837
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic ▆▇▇█▇███▇████▇▇▇▇▇▆▆▆▅▅▅▃▂▂▂▂▂▁▂▃▃▃▃▃▃▃▃▃▃52.87453.36654.03954.40354.14254.57154.54754.26854.0954.28754.77554.79454.59454.07154.03454.14253.96853.29353.01952.64852.03151.57251.66951.73649.46448.14648.45548.45148.27348.18246.98148.50449.63949.41748.96748.89549.0449.10348.85449.52549.61549.322NA59.10861.448
 us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities us-gaap:PerformanceShares▄▄0.4470.447NA0.30.30.332NA0.20.20.173NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities us-gaap:StockCompensationPlanNA0.001NA0.30.40.033NA0.50.50.6NA0.50.40.5NA0.80.50.0NA1.11.71.3NA1.41.51.0NA1.3NANANANANANANANANANANANANANANANANA
us-gaap:EarningsPerShareBasic ▂▆▁▃▃▅▁▃▃▅▁▃▃▅▂▂▂▄▁▂▂▄▁▂▂▃▁▂▂▃▁█▂▃▂▂▂▃▁▂▂▃▁▂▂0.160.940.00.370.40.68-0.020.330.310.69-0.020.250.240.660.090.180.20.47-0.010.210.160.42-0.040.20.130.4-0.030.160.130.36-0.081.280.180.370.020.110.120.38-0.020.10.130.36-0.0100000000000000090.080.09
us-gaap:EarningsPerShareDiluted ▂▆▁▃▃▅▁▃▃▅▁▃▃▅▂▂▂▄▁▂▂▄▁▂▂▃▁▂▂▃▁█▂▃▂▂▂▃▁▂▂▃▁▂▂0.160.920.00.360.390.66-0.020.320.30.67-0.020.240.230.640.080.180.190.45-0.010.20.160.41-0.040.190.130.37-0.030.150.120.33-0.081.270.180.370.020.110.120.38-0.020.10.130.36-0.0100000000000000090.080.09
us-gaap:IncomeLossFromContinuingOperationsPerBasicShare ▃█▁▄▄▆▁▄▄▆▁▃▃▆▂▃▃▅▁▃▃▄▁▃▂▄▁▃▂▄▁▂▂▄▂▂▂▄▁▂▂▄▂▂▂1.6e-079.399999999999999e-070.03.7e-074.0000000000000003e-076.800000000000001e-07-2e-083.3e-073.1e-076.9e-07-2e-082.5e-072.4e-076.6e-079e-081.8e-072.1e-074.6999999999999995e-07-1e-082.1e-071.6e-074.2e-07-2e-081.9e-071.4e-074.1e-07-3e-081.5e-071.3e-073.7e-07-7e-081.0000000000000001e-071.1e-073.7e-072e-081.1e-071.2e-073.8e-07-2e-081.0000000000000001e-071.4e-073.7e-071.0000000000000008e-089e-081.1e-07
us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare ▃█▂▄▄▆▁▄▄▆▁▃▃▆▂▃▃▅▁▃▃▄▁▃▂▄▁▂▂▄▁▂▂▄▂▂▂▄▁▂▂▄▁▂▂1.6e-079.200000000000001e-071.0000000000000008e-083.6e-073.9e-076.6e-07-2e-083.2e-073e-076.7e-07-2e-082.4e-072.3000000000000002e-076.4e-078e-081.8e-072.0000000000000002e-074.5000000000000003e-07-1e-082.0000000000000002e-071.6e-074.1e-07-2e-081.8e-071.3e-073.8e-07-3e-081.4e-071.2e-073.4000000000000003e-07-7e-081.0000000000000001e-071.1e-073.7e-072e-081.1e-071.2e-073.8e-07-2e-081.0000000000000001e-071.4e-073.6e-070.09e-081.1e-07
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
 Cost Ratio us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,cbz:BenefitsAndInsuranceServices▇█▃▄▄▆▃▅▃▅▂▃▄▅▂▃▃▄▂▂▂▁82.6287.23970.32573.88173.9479.61270.88676.9672.12776.25568.28570.06972.75377.3368.52369.66370.55975.16467.81668.97966.48464.327NANANANANANANANANANANANANANANANANANANANANANANA
 Cost Ratio us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,cbz:FinancialServices▇█▃▅▅▇▃▅▅▇▃▄▅▆▂▃▃▅▁▃▃▅▁▂▂▄186.589204.149131.419155.499154.083188.777123.256153.794154.373185.144122.441146.145151.737180.603118.786130.305132.591158.633103.195123.049122.856152.20797.539118.354116.671143.832NA115.931115.663NANANANANANANANANANANANANANANANA
 Cost Ratio us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,cbz:NationalPractices███▇▆▇▇▇▇▅▄▃▄▄▃▂▃▂▂▂▂▂▁▁▁▁9.4399.3429.3669.0098.929.0668.9969.0368.9988.5998.2978.0358.1518.1577.8337.7557.8667.6627.7747.7667.6757.7047.3487.4557.3477.383NA7.4477.324NANANANANANANANANANANANANANANANA
 EBT Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,cbz:BenefitsAndInsuranceServices▇█▃▄▄▆▃▅▃▅▂▃▄▅▂▃▃▄▂▂▂▁82.6287.23970.32573.88173.9479.61270.88676.9672.12776.25568.28570.06972.75377.3368.52369.66370.55975.16467.81668.97966.48464.327NANANANANANANANANANANANANANANANANANANANANANANA
 EBT Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,cbz:FinancialServices▇█▃▅▅▇▃▅▅▇▃▄▅▆▂▃▃▅▁▃▃▅▁▂▂186.589204.149131.419155.499154.083188.777123.256153.794154.373185.144122.441146.145151.737180.603118.786130.305132.591158.633103.195123.049122.856152.20797.539118.354116.671NANANANANANANANANANANANANANANANANANANANA
 EBT Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,cbz:NationalPractices███▇▆▇▇▇▇▅▄▃▄▄▃▂▃▂▂▂▂▂▁▁▁9.4399.3429.3669.0098.929.0668.9969.0368.9988.5998.2978.0358.1518.1577.8337.7557.8667.6627.7747.7667.6757.7047.3487.4557.347NANANANANANANANANANANANANANANANANANANANA
 Gross Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,cbz:BenefitsAndInsuranceServices▇█▃▄▄▆▃▅▃▅▂▃▄▅▂▃▃▄▂▂▂▁82.6287.23970.32573.88173.9479.61270.88676.9672.12776.25568.28570.06972.75377.3368.52369.66370.55975.16467.81668.97966.48464.327NANANANANANANANANANANANANANANANANANANANANANANA
 Gross Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,cbz:FinancialServices▇█▃▅▅▇▃▅▅▇▃▄▅▆▂▃▃▅▁▃▃▅▁▂▂▄186.589204.149131.419155.499154.083188.777123.256153.794154.373185.144122.441146.145151.737180.603118.786130.305132.591158.633103.195123.049122.856152.20797.539118.354116.671143.832NA115.931115.663NANANANANANANANANANANANANANANANA
 Gross Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,cbz:NationalPractices███▇▆▇▇▇▇▅▄▃▄▄▃▂▃▂▂▂▂▂▁▁▁▁9.4399.3429.3669.0098.929.0668.9969.0368.9988.5998.2978.0358.1518.1577.8337.7557.8667.6627.7747.7667.6757.7047.3487.4557.3477.383NA7.4477.324NANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,cbz:BenefitsAndInsuranceServices▇█▃▄▄▆▃▅▃▅▂▃▄▅▂▃▃▄▂▂▂▁82.6287.23970.32573.88173.9479.61270.88676.9672.12776.25568.28570.06972.75377.3368.52369.66370.55975.16467.81668.97966.48464.327NANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,cbz:FinancialServices▇█▃▅▅▇▃▅▅▇▃▄▅▆▂▃▃▅▁▃▃▅▁▂▂▄186.589204.149131.419155.499154.083188.777123.256153.794154.373185.144122.441146.145151.737180.603118.786130.305132.591158.633103.195123.049122.856152.20797.539118.354116.671143.832NA115.931115.663NANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,cbz:NationalPractices███▇▆▇▇▇▇▅▄▃▄▄▃▂▃▂▂▂▂▂▁▁▁▁9.4399.3429.3669.0098.929.0668.9969.0368.9988.5998.2978.0358.1518.1577.8337.7557.8667.6627.7747.7667.6757.7047.3487.4557.3477.383NA7.4477.324NANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:AllocatedShareBasedCompensationExpense ▇█▅▆▅▄▄▄▄▂▂▂▆▂▂▂▂▁▁▂▂▂▂▂▁▂▁▃▂▁▁▁▂▂▂▂▁▂2.5992.8552.1042.4852.2572.0231.9961.8591.9171.4821.5081.5092.4131.4371.4581.4571.4151.3741.3931.491.4331.4091.411.4081.2891.6221.3931.8251.5981.391.3811.351.4881.4361.5111.5081.3631.506NA1.5191.59NANANANA
us-gaap:ComprehensiveIncomeNetOfTax ▂▇▁▄▄▅▁▃▃▅▁▃▃▅▂▂▃▄▁▃▂▄▁▂▂▃▁▂▂▃▁█▂▃▂▂▂▃▁▂▂▃8.66551.0630.13219.89121.09135.596-0.98217.67716.1737.55-1.61613.64113.2835.9654.9369.67411.03525.054-0.26611.0047.99921.457-1.90610.2166.55319.306-1.3267.6226.19517.298-3.92162.4258.99218.3951.1825.365.76418.865-1.0884.4596.49218.306NANANA
us-gaap:CostOfRevenue █▇▆▅▆▅▅▆▅▆▄▅▅▅▄▄▄▅▃▃▃▃▂▂▂▃▁▂▂▂▁▁▁▄▂▃▂▄▂▁▂▃▂▂▂236.934223.971211.748204.76209.016199.827200.706209.146198.148215.496181.824198.607205.102204.75189.975184.723188.12192.766171.544174.069173.996178.117160.788159.175163.117170.864154.316159.026162.307166.187147.992150.935151.627190.86166.353167.146166.691180.005159.802153.961159.931169.727157.383157.243158.26
us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal 6.385NA-0.587-0.0740.0570.0950.015-0.1450.050.4970.3620.00.00.6630.00.00.0230.0220.3750.3290.050.101-0.0220.0050.0450.0561.210.0170.0680.0080.0070.0060.0480.0180.1060.0210.052.5890.0880.0870.0022.7430.0010.0890.002
us-gaap:GeneralAndAdministrativeExpense ██▇▆▆▅▅▆▅▆▄▅▅▅▃▃▄▄▄▄▄▅▃▃▂▅▃▄▄▅▃▄▃▅▁▃▃▅▃▄▃▅▃▃▂13.81614.48313.07811.33911.1610.48910.4911.6710.56611.688.87310.2799.99310.0287.3167.9799.2328.7689.0498.6798.34610.2458.0718.0436.6159.8656.798.8898.30610.2597.8218.9447.6499.9844.6157.6257.63810.5447.28.1756.859.567.0856.8776.638
us-gaap:GrossProfit ▅█▁▄▄█▁▄▄▆▃▃▄▇▂▃▃▅▂▃▃▅▁▄▃▅▁▃▃▅▁▃▃▅▂▃▃▅▁▃▃▅▂▃▃41.71476.759-0.63833.62927.92777.6282.43230.64437.3554.50217.19925.64227.53961.345.16723.022.89648.6937.24125.72523.01946.1213.62427.92721.92543.0022.70624.77318.57842.7211.84417.90420.88443.9216.50816.65421.91540.8223.12123.123.17940.3427.67918.64121.814
us-gaap:IncomeLossFromContinuingOperations ▃█▁▄▄▆▁▄▄▆▁▃▃▆▂▃▃▅▁▃▃▄▁▃▂▄▁▂▂▄▁▂▂▄▂▂▂▄▁▂▂▄▁▂▂8.61350.216-0.0920.09621.47936.862-1.13618.00616.61437.565-0.95313.59513.12135.814.7269.86411.41625.026-0.56510.9878.38721.798-0.7749.5896.68519.503-1.3787.2846.2417.982-3.2285.0815.45118.2831.2015.2785.82918.767-1.2114.8396.85618.104-1.2525.5427.009
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▃█▁▄▄▆▁▄▄▇▁▃▃▆▂▃▃▆▁▃▃▅▁▃▃11.22966.188-2.06927.15628.08650.315-4.324.07521.93651.178-2.37716.89216.35948.9661.35816.03615.75941.167-1.53218.24713.69336.598-3.016.37611.381NANANANANANANANANANANANANANANANANANANANA
us-gaap:IncomeTaxExpenseBenefit ▃█▁▅▅▇▁▄▄▇▂▃▃▇▁▄▄█▂▅▄█▁▅▄▇▁▄▄▇▁▃▄▇▂▃▃▇▂▃▄▇▂▃▃2.61615.972-1.9797.066.60713.453-3.1646.0695.32213.613-1.4243.2973.23813.156-3.3686.1724.34316.141-0.9677.265.30614.8-2.2266.7874.69613.572-2.1374.1264.45913.03-2.8972.4414.20213.098-0.0582.4583.51213.416-1.9131.6145.09513.587-0.7563.5912.711
us-gaap:InterestExpenseDebt ▁▁▁▂▅▂▂▃▃▃▃▄▄▄▄▄▄▃▃▄▄▃▂▄██0.9590.8770.8160.9742.0741.1191.2561.5211.5871.4011.4341.6141.8171.781.6891.7771.6921.5171.5741.761.7331.5261.2371.842.8482.977NA3.1233.577NANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss ▂▇▁▄▄▅▁▃▃▅▁▃▃▅▂▂▃▄▁▃▂▄▁▂▂▃▁▂▂▃▁█▂▃▂▂▂▃▁▂▂▃▁▂▂8.60750.209-0.09420.07721.46836.848-1.15317.80616.59237.469-0.97313.58613.10635.8514.8479.65810.99824.874-0.68610.8548.12921.768-1.90610.26.64519.168-1.3257.6886.10717.289-3.94762.369.14718.3031.2065.3075.84818.785-1.1664.7176.55117.905-1.7244.8325.422
us-gaap:NonoperatingIncomeExpense █▆█▆▇▁▆▆▄▇▂▅▅▄▆▅▅▅▅▅▅▅▅▄▄▅▅▄▅▅▅▅▄▄▅▅▄▅▅▃▄▅▄▄▄13.7993.91211.6474.86611.319-16.8243.7585.101-4.8488.356-10.7031.529-1.187-2.3463.5071.0152.0951.2420.2761.201-0.980.7221.447-3.508-3.929-0.0620.569-4.4740.427-1.45-0.148-1.438-3.582-2.556-0.75-1.293-4.9361.9050.955-8.472-4.3780.909-2.602-2.631-5.456
us-gaap:OperatingIncomeLoss ▂█▁▄▄█▁▄▅▆▃▄▄▇▂▃▃▆▂▄▃▅▂▄▄▅▂▄▃▅▂▃▃▅▂▃▃▅▂▃▄▅▂▃▄-2.5762.276-13.71622.2916.76767.139-8.05818.97426.78442.8228.32615.36317.54651.312-2.14915.02113.66439.925-1.80817.04614.67335.876-4.44719.88415.3133.137-4.08415.88410.27232.462-5.9778.9613.23533.9371.8939.02914.27730.278-4.07914.92516.32930.7820.59411.76415.176
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems us-gaap:CorporateNonSegment▁▅▄▆▅█▅▅▆▅▇▆▆▆▆▆▆▆▆▆▆▆▆▇▇▆-54.035-21.234-27.422-16.094-23.4861.788-18.228-21.091-11.277-23.347-3.097-17.427-17.293-13.337-13.264-13.442-14.389-14.996-11.682-12.611-12.006-14.308-14.093-7.552-9.496-13.982NA-11.356NANANANANANANANANANANANANANANANANA
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,cbz:BenefitsAndInsuranceServices▄█▁▂▃▄▁▃▂▄▁▁▂▅▂▁▁▄▂▂▁▁14.84420.30610.48711.86812.65714.38910.47713.5711.05214.88410.33610.6711.58816.19711.3810.50810.68215.02211.9811.35210.1410.647NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,cbz:FinancialServices▅█▂▄▄▇▁▄▄▇▁▄▄▆▁▃▃▆▁▃▃▅▁▃▃▅35.66962.4032.14725.57726.66650.179-1.13725.56326.21550.6860.43721.59922.66747.57-1.06717.30916.7439.244-2.9617.43415.86938.71-1.7316.37514.32635.214NA16.94415.079NANANANANANANANANANANANANANANANA
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,cbz:NationalPractices▆▅█▆▆▄▅▆▄▂▃▁▂▆▅▃▂▃▅▅▃▅▅▅▃▄0.9520.8011.0720.9390.930.7830.830.9320.7940.5990.650.5210.5840.8820.8020.6460.6310.6550.8540.8710.670.8270.8250.8110.6980.782NA0.8620.641NANANANANANANANANANANANANANANANA
us-gaap:OtherNonoperatingIncomeExpense ▇▆█▆█▁▆▆▄▇▂▆▅▅▆▅▆▅▅▅▅▅▅▄▅▅▅▄▆▅▆▅▅▅▆▅▅▆▆▄▅▆▅▅▄8.3734.78913.055.91413.336-15.84.9996.767-3.3119.26-9.6313.1430.63-1.2295.1962.7923.7642.7371.4752.6320.7032.1472.706-1.673-1.1262.8592.35-1.3683.9361.9753.2032.3710.5151.7793.2542.57-0.843.4384.851-4.510.0273.0812.3911.015-2.047
us-gaap:ProfitLoss NANANA20.07721.46836.848-1.15317.80616.59237.469-0.97313.58613.10635.8514.8479.658NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ▇█▄▅▅▇▃▅▅▇▃▄▅▅▃▄▄▅▂▃▃▄▂▃▃▄▁▃▂▄▁▂▂▅▂▃▃▄▂▂▃▄▂▂▂278.648300.73211.11238.389236.943277.455203.138239.79235.498269.998199.023224.249232.641232.641195.142207.723211.016241.459178.785199.794197.015224.238164.412187.102185.042213.866157.022183.799180.885208.908149.836168.839172.511234.781172.861183.8188.606220.827162.923177.061183.11210.069165.062175.884180.074
us-gaap:Revenues ▇█▄▅▅▇▃▅▅▇▃▄▅▆▃▄▄▅▂▃▃▄▂▃▃▄▁▃▂▄▁▂▂▅▂▃▃▄▂▂▃▄▂▂▂278.648300.73211.11238.389236.943277.455203.138239.79235.498269.998199.023224.249232.641266.09195.142207.723211.016241.459178.785199.794197.015224.238164.412187.102185.042213.866157.022183.799180.885208.908149.836168.839172.511234.781172.861183.8188.606220.827162.923177.061183.11210.069165.062175.884180.074
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:Assets █▇▇▆▆█▆▆▆▆▄▄▄▄▄▄▄▄▄▃▄▃▃▂▃▃▃▂▂▂▂▂▃▃▃▁▁▂▁▁▁1656.6281551.8431513.7541425.1161427.6081616.5581400.7741397.0631376.9231377.3191183.0311189.8561210.1241214.3531176.2311128.6881150.6661111.1871118.5881052.9451122.5541016.91998.2952.007974.539991.033991.244924.478910.878932.431897.458858.784980.229998.676970.156831.48822.838857.736812.357780.072781.778NA756.299NANA
us-gaap:Liabilities █▆▆▄▅█▅▅▅▅▂▂▃▃▃▃▃▃▃▂▄▂▂▁▁▂▂▁▁▂▁▁▃▄▄▂▂▂▂▁▁944.296824.06811.134707.112732.388946.298741.536740.767742.863753.832589.368587.941621.298642.737645.352598.202627.304603.922638.567578.259662.129571.046570.252506.45525.815572.7591.399520.845511.777535.415523.012494.974655.577683.016674.924541.356539.45577.264552.199520.578524.171NA526.627NANA
us-gaap:LiabilitiesAndStockholdersEquity █▇▇▆▆█▆▆▆▆▄▄▄▄▄▄▄▄▄▃▄▃▃▂▃▃▃▂▂▂▂▂▃▃▃▁▁▂▁▁▁1656.6281551.8431513.7541425.1161427.6081616.5581400.7741397.0631376.9231377.3191183.0311189.8561210.1241214.3531176.2311128.6881150.6661111.1871118.5881052.9451122.5541016.91998.2952.007974.539991.033991.244924.478910.878932.431897.458858.784980.229998.676970.156831.48822.838857.736812.357780.072781.778NA756.299NANA
us-gaap:StockholdersEquity █████▇▇▇▇▆▆▆▆▆▅▅▅▅▄▄▄▄▄▄▄▃▃▃▃▃▃▃▂▂▂▁▁▁▁▁▁712.332727.783702.62718.004695.22670.26659.238656.296634.06623.487593.663601.915588.826571.616530.879530.486523.362507.265480.021474.686460.425445.864427.948445.557448.724418.333399.845403.633399.101397.016374.446363.81324.652315.66295.232290.124283.388280.472260.158259.494257.607NA229.672NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:AssetsCurrent ▅▄▄▄▄█▄▄▄▄▄▄▄▄▄▃▄▄▄▃▄▃▃▂▂▃▃▂▂▂▂▂▄▃▂▁▁▂▁▁▁509.171471.475436.431425.891472.174675.573456.02447.899458.015457.861423.538423.837446.272463.562448.173403.855428.595432.634441.592383.332458.074392.77372.48336.232352.07366.421379.326334.471328.433360.244350.475314.228434.381378.881350.197293.778293.648327.762292.329275.706295.998NA253.468NANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▁▁▁▁▁█▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁4.6776.7784.6526.1139.62216.9420.5672.7232.6282.1430.643.4931.9210.2950.4241.2781.1612.4243.4940.5148.4921.5610.851.842.250.1280.9790.3973.9484.4070.7713.5531.1870.2040.8990.4543.0693.1891.6130.5330.2110.2310.7240.5310.14
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents ▄▄▄▃▄█▄▃▃▃▃▁▁▁▁▁▁▁▁153.91152.777170.335124.752144.275339.985146.50598.80497.179106.09130.55436.04441.45630.06833.40933.38236.08529.07531.374NANANA153.67NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AccountsReceivableNetCurrent █▇▅▆▇▇▅▇▇▇▄▅▆▇▃▄▅▅▃▄▄▄▂▃▃▃▁▃▃▃▁▂▂▄▂▂▂▃▁▂▂292.496270.61216.175248.886267.198263.18222.031260.969271.781264.434207.287234.906245.639261.336188.3213.418218.317220.859175.354194.419193.155197.248153.608175.755177.228188.484143.048179.79179.122184.452143.107161.715161.402193.218154.973166.633164.083179.834137.073158.312155.663NA138.068NANA
us-gaap:OtherAssetsCurrent █▆▅▅▅▆▅▆▆▆▆▆▆▆▅▅▆▅▅▅▄▃▃▂▃▃▃▂▃▃▃▂▂▁▂▁▂▂▂▁▂33.3125.69524.21321.86222.47224.5424.32525.0226.0624.78426.84126.57627.87324.50322.53923.00425.48924.02421.40721.70518.70116.74715.90313.37514.49614.9515.29212.84214.18414.7914.36412.23612.9788.24912.1129.93510.72311.59611.4388.43410.375NA11.958NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:AssetsNoncurrent █▇▇▆▅▅▅▅▅▅▃▃▃▃▂▂▂▂▂▂▂▁▁1147.4571080.3681077.323999.225955.434940.985944.754949.164918.908919.458759.493766.019763.852750.791728.058724.833722.071678.553676.996669.613664.48624.14625.72NANANA611.918NANANANANANANANANANANANANANANANANANA
us-gaap:PropertyPlantAndEquipmentGross NANA122.998NANANA119.135NANANA111.302NANANA102.378NANANA91.914NANANA88.618NANANA88.385NANANA86.265NANANA106.133NANANA105.947NANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType cbz:BuildingsAndLeaseholdImprovementsNANA37.022NANANA33.284NANANA28.456NANANA26.289NANANA19.841NANANA18.075NANANA19.371NANANA18.459NANANA18.683NANANA19.155NANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:EquipmentNANA23.467NANANA21.088NANANA17.875NANANA13.615NANANA11.751NANANA11.396NANANA11.486NANANA10.416NANANA18.341NANANA18.899NANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:FurnitureAndFixturesNANA28.006NANANA27.56NANANA27.69NANANA25.835NANANA23.893NANANA23.515NANANA21.979NANANA22.407NANANA24.512NANANA23.858NANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:SoftwareAndSoftwareDevelopmentCostsNANA34.503NANANA37.203NANANA37.281NANANA36.639NANANA36.429NANANA35.632NANANA35.549NANANANANANANANANANANANANANANANANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment NANA81.652NANANA79.723NANANA77.097NANANA76.297NANANA72.464NANANA68.456NANANA69.91NANANA67.098NANANA85.742NANANA84.145NANANANANANA
us-gaap:PropertyPlantAndEquipmentNet █▇███▇▇▇▇▇▆▅▄▄▃▃▃▂▁▁▁▁▂▂▂▂▁▁▁▁▁▁▁▂▂▂▂▂▂▂▂40.06939.9141.34641.73340.19939.89939.41238.11836.84837.32834.20531.428.64927.31826.08124.44623.72819.94519.4519.3619.72719.72920.16220.3720.85919.99618.47519.06519.04519.53219.16718.48718.2120.63420.39120.35620.85420.44621.80222.89921.5NA23.895NANA
us-gaap:Goodwill NANA683.1NANANA588.2588.213566.009566.009564.3560.712560.688551.367528.424527.171526.984489.039487.484478.551474.095448.611447.685441.316442.624442.276435.231416.139410.53920.61384.697NANA440.926440.709392.009384.523NA377.281NANANA344.086NANA
 us-gaap:Goodwill us-gaap:BusinessAcquisition cbz:SeriesOfBusinessAcquisitionInTwoThousandNineteenAndTwoThousandTwentyNANA97.43948.58411.15811.15824.36924.3692.1652.165NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Goodwill us-gaap:BusinessAcquisition cbz:SeriesOfBusinessAcquisitionOneNANANA48.611.211.224.424.42.1652.236.05432.25532.25532.340.58739.4639.4639.534.803NANA0.98813.471NANA6.86551.87331.92526.32520.69.278NANANANANANANANANANANANANANA
 us-gaap:Goodwill us-gaap:BusinessAcquisition us-gaap:SeriesOfIndividuallyImmaterialBusinessAcquisitions39.017NANANA11.158NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Goodwill us-gaap:StatementBusinessSegments cbz:BenefitsAndInsuranceServices1.795NA313.378NA11.158NA252.3NANANA233.008NANANA219.897NANANA214.488NANANA178.534NANANA164.935NANANANANANANANANANANANANANANANANANA
 us-gaap:Goodwill us-gaap:StatementBusinessSegments cbz:FinancialServices37.222NA368.039NANANA334.247NANANA329.626NANANA306.861NANANA271.33NANANA267.485NANANA268.63NANANA260.715NANANA259.783NANANA233.163NANANA203.441NANA
us-gaap:IntangibleAssetsNetIncludingGoodwill █▇▇▆▅▅▅▅▄▄▅▄▅▄▄▄▄▃▃▃▃▂▂▂▂▂▂▂▂▂▁▁▁▃▃▁▁807.939756.684756.75695.562661.18666.112654.671658.442632.425635.881637.009636.202640.312631.956613.206615.316618.846582.404584.401575.851573.022534.886535.653528.173530.409533.118526.462505.633498.972491.908469.083470.909474.981547.1551.219472.345465.463NA458.34NANANANANANA
us-gaap:OperatingLeaseRightOfUseAsset █▅▅▄▃▁▂▆▄▄153.457146.786147.843143.88143.143138.485140.831148.87145.303145.574NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent ▃▃▃▄▂▃▂▂▃▄▃▃▃▃▂▁▁▁▁▁▁▁▃▃▃▄▃▇▆▅▆▇▇██▅▅▅▆▆▇3.6623.514.0524.3013.2033.8762.9893.2053.9674.6923.8444.2033.9984.0272.5622.1662.0482.1012.0061.8691.9081.963.93.6894.264.5263.9777.6196.6725.7896.2387.2387.6938.0968.575.6465.4685.8776.3016.7297.558NA8.112NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:AccountsPayableCurrent █▄▅▃▇▄▅▄▇▄▄▄▆▄▃▃▄▃▃▂▄▂▂▂▃▂▂▂▃▂▂▁▂▂▂▂▃▂▂▁▁99.01860.21664.11950.59286.48462.32968.5163.72587.66861.54158.6357.76480.82363.15751.37547.57662.01347.05745.77242.52654.82336.5535.55535.06548.57238.08236.78138.02944.49334.69737.52933.66740.76637.82339.47839.84846.70935.8134.9629.85328.778NA30.814NANA
us-gaap:AccruedIncomeTaxesCurrent ▂▇▂▅█▆▁▄▄▆▁2.39715.0282.78810.17517.80313.0890.0577.1047.30713.8640.464NANANANA10.476.94618.1281.048NANANANA9.1196.98514.1282.3846.344.95112.1610.02538.7028.61213.4221.372NANA10.2330.04.3637.238NA0.0NANA
us-gaap:LiabilitiesCurrent █▅▇▄▅▅▆▅▅▅▅▄▅▄▅▃▄▄▆▃▅▃▄▂▂▃▄▂▂▂▄▃▃▃▄▂▂▂▂▁▁423.764333.674378.274298.056333.299309.429365.926310.081324.736311.122321.314281.797305.412288.341334.246262.462290.248277.769339.447251.383329.792250.877271.053219.332229.885233.574295.168226.545225.802226.809267.414250.657246.553259.011269.867204.651200.331211.857226.182177.62195.092NA229.322NANA
us-gaap:OperatingLeaseLiabilityCurrent █▇▇▄▁▂▃▄▃▂30.8830.63830.48329.23228.30528.65229.0329.51329.128.647NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesCurrent █▁▁▁▂▂▁▂▁▁▁▁▁▁▂▂▂▁▂▁▁▁▁▁▁▁▁▁▁▂▁▂▂▂▂▂▄▄▄▄▃56.97914.31213.62914.08214.93415.81713.21815.93712.4612.49213.65612.73513.58714.11817.01314.93716.60411.71316.16911.35213.92512.74411.71413.43412.1613.74213.43414.30413.10516.56912.76617.57119.78519.30716.55220.85331.17732.61233.57928.81623.949NA27.321NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:LiabilitiesNoncurrent ▆▅▄▄▃█▃▄▄▄▁▂▂▃▂▂▂▂▂▂▂▂▂▁▂520.532490.386432.86409.056399.089636.869375.61430.686418.127442.71268.054306.144315.886354.396311.106335.74337.056326.153299.12326.876332.337320.169299.199287.118295.93NA296.231NANANANANANANANANANANANANANANANANANA
us-gaap:LongTermDebtNoncurrent ▂▂▁▁▁█▁▂▂▃▂▃▃▄▃▄▄▄▃▄▄▄▄162.672161.282107.192109.103119.013381.923104.333158.744157.654180.564133.974165.482178.493214.002177.672205.041209.51211.479190.049218.118233.887232.906204.681NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:UnsecuredLongTermDebt NANA400.0NANANANANANANANANANANANANANANANA400.0400.0400.0400.0400.0NA400.0NA400.0275.0275.0275.0NANANA275.0NANANANANANANANANANA
us-gaap:DeferredIncomeTaxLiabilitiesNet █▅▁▂▅14.39912.3718.7529.33212.332NA11.72NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesNoncurrent ▃▃▄▅▃▁▁▁▁▁▇▆▆▅▅▅▅▅▄▄▃▃▃▃▃▃▃▃▃▄▄▄▄▃▄▄█▇▇█▆9.86810.30311.68615.6299.9622.8881.7392.0241.8621.62122.30917.8817.99516.31215.46516.23215.69314.89812.0812.7637.6247.2237.4567.5228.2168.5098.2668.95510.03810.4210.78210.41911.29710.07310.43611.24324.94523.10721.3226.17719.757NA23.182NANA
us-gaap:OperatingLeaseLiabilityNoncurrent █▅▆▅▃▁▂▅▄▅146.087140.15142.02139.257135.013129.624132.018139.796136.958138.373NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANA30.35428.66632.81732.87832.371NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANA27.70926.25826.79226.63626.112NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NANA24.40123.08125.06624.77124.273NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA22.662NA22.50622.17521.578NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA52.432NA68.93668.33867.025NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:StockholdersEquity █████▇▇▇▇▆▆▆▆▆▅▅▅▅▄▄▄▄▄▄▄▃▃▃▃▃▃▃▂▂▂▁▁▁▁▁▁712.332727.783702.62718.004695.22670.26659.238656.296634.06623.487593.663601.915588.826571.616530.879530.486523.362507.265480.021474.686460.425445.864427.948445.557448.724418.333399.845403.633399.101397.016374.446363.81324.652315.66295.232290.124283.388280.472260.158259.494257.607NA229.672NANA
us-gaap:CommonStockValue ██████▇▇▇▇▇▇▇▇▇▇▆▆▆▆▆▆▆▅▅▄▃▃▃▃▂▂▂▂▂▁▁▁▁▁▁1.3491.3461.3411.3381.3351.3321.3311.3241.3211.3181.3141.3141.3111.3051.3011.2971.2961.2861.2821.2761.2751.2641.2621.2541.251.1931.1881.1831.1671.161.1491.1311.1311.1261.1241.1191.1171.1121.1111.1081.103NA1.096NANA
us-gaap:AdditionalPaidInCapitalCommonStock ██▇▇▇▇▇▆▆▆▆▆▆▅▅▅▅▅▅▄▄▄▄▅▄▃▃▃▃▃▂▂▂▂▂▁▁▁▁▁▁757.421749.207740.97731.696725.064719.616714.704706.45700.8696.226692.398690.14686.983679.208675.504670.577668.542660.086655.629648.847645.462637.22634.626650.337645.74608.47604.284599.093593.543589.713580.576566.037563.646562.84560.81556.89554.254553.254551.205547.936543.168NA539.389NANA
us-gaap:RetainedEarningsAccumulatedDeficit ██▇▇▇▇▆▆▆▆▅▅▅▅▅▄▄▄▄▄▄▄▃▃▃▃▃▃▃▃▃▃▂▂▁▁▁▁▁▁▁616.691608.084557.875557.969537.892516.424479.576480.729462.923446.331408.963409.467395.881382.775345.302340.455330.797319.799294.925295.611284.757276.628254.86256.766246.565239.92220.753222.078214.39208.282190.994194.941132.58123.434105.131103.92598.61892.7773.98575.15170.434NA45.978NANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▄▄▂▁▁▂▆▅▆▇▆██▇▇▇▇▇▆▅▅▅▆▆▆▆▆▆▆▆▆▆▅▆▆▆▆▆▆▅▆-1.357-1.415-2.269-2.495-2.309-1.932-0.68-0.851-0.722-0.3-0.4820.1610.106-0.068-0.182-0.271-0.287-0.324-0.504-0.924-1.074-0.944-0.633-0.633-0.649-0.557-0.695-0.694-0.628-0.716-0.725-0.751-0.815-0.66-0.753-0.73-0.783-0.699-0.779-0.858-0.599NA-0.94NANA
us-gaap:TreasuryStockValue █▇▆▆▆▆▅▅▅▅▄▄▄▄▄▄▄▄▄▄▄▄▃▃▃▃▃▂▂▂▂▂▁▁▁▁▁▁▁▁▁661.772629.439595.297570.504566.762565.18535.693531.356530.262520.088508.53499.167495.455491.604491.046481.572476.986473.582471.311470.124469.995468.304462.167462.167444.182430.693425.685418.027409.371401.423397.548397.548371.89371.08371.08371.08369.818365.965365.364363.843356.499NA355.851NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:NetCashProvidedByUsedInOperatingActivities █▂▇▄█▁▆▅▆▁▅▄▇▁▅▄▅▂▅▃▅▂▄▄▅▁▄▄▄▁▂▂▄▂▄▃▅▂▄▄▄▂▃▄81.121-14.82765.04926.27374.17-18.64748.77129.83444.333-24.75341.97622.16661.606-20.538.30416.43330.457-13.26336.14512.63739.422-17.16221.6121.49628.595-24.31521.09817.66626.345-21.191-12.113-3.28826.011-12.12816.39812.05136.884-11.28520.69214.62426.703-3.7511.80515.828NA
us-gaap:NetCashProvidedByUsedInInvestingActivities ▂▃▂▃▃▃▃▃▃▃▁▃▃▄▂▄▃▄▁▅▂▄▂▃▃▄▁▃▄▄▂█▄▃▁▃▄▃▂▃▃▂▃▃-40.3660.229-36.915-22.2988.4524.355-2.994-13.812-1.143-9.736-89.777-0.275.01637.455-72.87111.706-17.0948.847-85.17867.36-50.11217.916-67.172.5269.13248.563-82.842-17.31915.51220.731-67.007211.09722.0078.895-99.807-9.12618.338-13.72-34.368.46110.862-40.535-4.431-23.168NA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▄▅▅▅▁█▅▅▄▅▅▅▄▅▅▅-39.622-2.9617.449-23.498-278.332207.7721.924-14.397-52.10110.025-6.542-27.308-55.234-20.29633.713-28.022NANANANANANANANANANANANANA4.09676.338-205.443-47.0352.53883.854-5.54-55.34226.58114.748-22.763-37.58543.792-7.1817.731NA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▅▄▅▄▁█▅▅▄▄▄▄▅▄▄▄▅▄1.133-17.55845.583-19.523-195.71193.4847.7011.625-8.911-24.464-54.343-5.41211.388-3.341-19.246-2.7037.01-2.299NANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:DepreciationDepletionAndAmortization █▇▆▆▆▅▅▅▄▅▇▆▆▆▆▆▅▅▅▅▅▄▄▄▄▃▃▄▃▃▃▃▃▆▅▁▁▄▄▄▃▃▄▄6.6246.2525.8625.7865.7875.7045.7355.6345.3175.6596.1475.8525.9015.7755.8945.8885.6385.6415.7395.6775.4375.2455.2215.1175.0644.9874.8315.1884.9644.8484.744.774.7495.825.4854.2124.1495.2285.2435.1074.9655.035.0755.044NA
us-gaap:IncreaseDecreaseInAccountsPayable █▄▅▁▆▄▅▂▇▅▄▃▅▅▅▃▅▄▅▃▆▄▄▃▅▄▄▄▅▄▅▄▅▄▄▄▅▄▅▄▄▄▅▄41.447-4.8739.604-36.21424.146-6.3364.784-23.94226.1272.860.866-18.68813.2955.5013.799-14.43713.0911.2853.246-12.29718.2730.9950.428-13.50710.491.301-4.115-6.7119.838-2.8383.88-7.0996.048-1.655-0.424-6.86110.8770.5435.1131.1391.279-3.3193.583-2.862NA
us-gaap:IncreaseDecreaseInAccountsReceivable ▅▇▁▂▄▇▁▃▄█▂▃▂█▂▃▃▇▂▄▃▇▂▄▃▇▂▄▃▆▂▄▃▆▂▄▃▇▂▄▃▆▂▄14.71254.651-34.627-19.6324.97942.566-38.496-11.6597.79857.886-28.269-5.837-19.33764.111-24.246-2.902-5.0846.077-19.4782.227-8.04644.485-22.4230.412-9.95247.239-30.121.11-4.88240.138-17.1750.628-11.77639.439-18.2983.706-14.55643.383-18.8540.673-13.17632.927-16.8540.922NA
us-gaap:NetCashProvidedByUsedInOperatingActivities █▂▇▄█▁▆▅▆▁▅▄▇▁▅▄▅▂▅▃▅▂▄▄▅▁▄▄▄▁▂▂▄▂▄▃▅▂▄▄▄▂▃▄81.121-14.82765.04926.27374.17-18.64748.77129.83444.333-24.75341.97622.16661.606-20.538.30416.43330.457-13.26336.14512.63739.422-17.16221.6121.49628.595-24.31521.09817.66626.345-21.191-12.113-3.28826.011-12.12816.39812.05136.884-11.28520.69214.62426.703-3.7511.80515.828NA
us-gaap:NetIncomeLoss ▂▇▁▄▄▅▁▃▃▅▁▃▃▅▂▂▃▄▁▃▂▄▁▂▂▃▁▂▂▃▁█▂▃▂▂▂▃▁▂▂▃▁▂▂8.60750.209-0.09420.07721.46836.848-1.15317.80616.59237.469-0.97313.58613.10635.8514.8479.65810.99824.874-0.68610.8548.12921.768-1.90610.26.64519.168-1.3257.6886.10717.289-3.94762.369.14718.3031.2065.3075.84818.785-1.1664.7176.55117.905-1.7244.8325.422
us-gaap:ProfitLoss NANANA20.07721.46836.848-1.15317.80616.59237.469-0.97313.58613.10635.8514.8479.658NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ShareBasedCompensation ▁█2.5992.855NA2.4852.2572.023NA1.8592.590.809NA1.5083.3250.525NA1.457NANANANANANANANANANANANANA1.391.3811.351.4881.4361.5111.5081.3631.5061.5211.5191.591.3241.3631.373NA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:NetCashProvidedByUsedInInvestingActivities ▂▃▂▃▃▃▃▃▃▃▁▃▃▄▂▄▃▄▁▅▂▄▂▃▃▄▁▃▄▄▂█▄▃▁▃▄▃▂▃▃▂▃▃-40.3660.229-36.915-22.2988.4524.355-2.994-13.812-1.143-9.736-89.777-0.275.01637.455-72.87111.706-17.0948.847-85.17867.36-50.11217.916-67.172.5269.13248.563-82.842-17.31915.51220.731-67.007211.09722.0078.895-99.807-9.12618.338-13.72-34.368.46110.862-40.535-4.431-23.168NA
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▄▂▄▆▄▄▆▅▃█▇▆▅▄▅▄▇▃▂▂▂▂▂▂▄▅▂▃▂▃▃▃▂▃▂▂▃▁▁▄▁▁▂▂2.1121.1462.094.182.6652.6413.5943.3631.4645.4524.8244.3072.8522.6413.0222.1214.9891.761.2981.0060.9570.881.2040.8862.3172.9831.1131.4120.6951.6171.9231.5251.0161.7440.9551.0441.90.1680.532.7880.410.5310.6270.654NA
us-gaap:PaymentsToAcquireInvestments NANA0.00.00.03.4476.0457.2514.459.477.6810.44.1756.171.52.2581.3710.4184.0552.3371.4033.562.9355.8333.133.531NA3.26NANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:NetCashProvidedByUsedInFinancingActivities ▄▅▅▅▁█▅▅▄▅▅▅▄▅▅▅-39.622-2.9617.449-23.498-278.332207.7721.924-14.397-52.10110.025-6.542-27.308-55.234-20.29633.713-28.022NANANANANANANANANANANANANA4.09676.338-205.443-47.0352.53883.854-5.54-55.34226.58114.748-22.763-37.58543.792-7.1817.731NA
us-gaap:PaymentsForRepurchaseOfCommonStock ██▆▂▁▇▂▁▃▃▃▂▂▁▃▂▂▁▁▁▁▂▁▅▄▂▃▃▃▂▁▆31.36433.14224.4133.0541.58229.4874.3371.09410.17411.5589.3633.7123.8510.5589.4744.5863.4042.2711.1870.1291.6916.1370.017.98413.4915.0077.6588.6567.9483.8750.025.658NANA0.01.262NANA1.5267.339NANA0.11578.492NA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value1349000.01346000.01341000.01338000.01335000.01332000.01331000.01324000.01321000.01318000.01314000.01314000.01311000.01305000.01301000.01297000.01296000.01286000.01282000.01276000.01275000.01264000.01262000.01254000.01250000.01193000.01188000.01183000.01167000.01160000.01149000.01131000.01131000.01126000.01124000.01119000.01117000.01112000.01111000.01108000.01103000.01096000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.1

Shares Issued

us-gaap:SharesIssued us-gaap:StatementEquityComponents

us-gaap:SharesIssued

us-gaap:CommonStock


Shares
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value134134134133133133133132132131131131131130130129129128128127127126126125118114112111109108106
Percentage of SharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStock


Shares
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value82818079787877777776767575757574747474747473737369656261594644
Percentage of SharesIssued60.960.359.759.159.159.158.358.558.658.358.157.857.757.958.057.757.557.857.858.058.158.458.058.458.457.455.254.954.342.741.5

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesIssued


Common
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value134133131130128126118114112111109
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStockSharesOutstanding


Common
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value5455555454524948505050
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value5354545555555455555556565655555555555353535251545251485152524649494949494949484949495961
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value5253545454545454545454545454545453535352525151514948484848484648494948484949484949495961
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:PerformanceShares


Antidilutive
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value447000.0447000.0300000.0300000.0332000.0200000.0200000.0173000.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockCompensationPlan


Antidilutive
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-30
Value1000.0300000.0400000.033000.0500000.0500000.0600000.0500000.0400000.0500000.0800000.0500000.001100000.01700000.01300000.01400000.01500000.01000000.01300000.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount0.2100.0133.39.9250.0250.0346.80.00.00.00.00.00.00.00.00.00.00.00.00.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value0.160.9400.370.40.68-0.020.330.310.69-0.020.250.240.660.090.180.20.47-0.010.210.160.42-0.040.20.130.4-0.030.160.130.36-0.081.280.180.370.020.110.120.38-0.020.10.130.36-0.010.080.09
Percentage of EarningsPerShareBasic100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value0.160.9200.360.390.66-0.020.320.30.67-0.020.240.230.640.080.180.190.45-0.010.20.160.41-0.040.190.130.37-0.030.150.120.33-0.081.270.180.370.020.110.120.38-0.020.10.130.36-0.010.080.09
Percentage of EarningsPerShareDiluted100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Income Loss From Continuing Operations Per Basic Share

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value0.160.9400.370.40.68-0.020.330.310.69-0.020.250.240.660.090.180.210.47-0.010.210.160.42-0.020.190.140.41-0.030.150.130.37-0.070.10.110.370.020.110.120.38-0.020.10.140.370.010.090.11
Percentage of IncomeLossFromContinuingOperationsPerBasicShare100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Income Loss From Continuing Operations Per Diluted Share

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value0.160.920.010.360.390.66-0.020.320.30.67-0.020.240.230.640.080.180.20.45-0.010.20.160.41-0.020.180.130.38-0.030.140.120.34-0.070.10.110.370.020.110.120.38-0.020.10.140.3600.090.11
Percentage of IncomeLossFromContinuingOperationsPerDilutedShare100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:AllocatedShareBasedCompensationExpense


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value2599000.02855000.02104000.02485000.02257000.02023000.01996000.01859000.01917000.01482000.01508000.01509000.02413000.01437000.01458000.01457000.01415000.01374000.01393000.01490000.01433000.01409000.01410000.01408000.01289000.01622000.01393000.01825000.01598000.01390000.01381000.01350000.01488000.01436000.01511000.01508000.01363000.01506000.01519000.01590000.0
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.90.91.01.01.00.71.00.80.80.50.80.71.00.60.70.70.70.60.80.70.70.60.90.80.70.80.91.00.90.70.90.80.90.60.90.80.70.70.90.9

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value8.665510.132192135-0.982171637-1.6161313354.9369.6741125-0.266117.99921-1.906106.55319-1.3267.6226.19517-3.921628.992181.1825.365.76418-1.0884.4596.49218
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.117.00.18.38.912.8-0.57.46.913.9-0.86.15.715.52.54.75.210.4-0.15.54.19.6-1.25.53.59.0-0.84.13.48.3-2.637.05.27.80.72.93.18.5-0.72.53.58.7

Cost Of Revenue

us-gaap:CostOfRevenue

us-gaap:CostOfRevenue


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value236223211204209199200209198215181198205204189184188192171174173178160159163170154159162166147150151190166167166180159153159169157157158
Percentage of CostOfRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax85.074.5100.385.988.272.098.887.284.179.891.488.688.288.097.488.989.179.895.987.188.379.497.885.188.279.998.386.589.779.698.889.487.981.396.290.988.481.598.187.087.380.80.089.487.9

us-gaap:CostOfRevenue us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-30
Value9.7516.751144.75512-12.2777.7389.4210.71111-5.7767.1487.33.3095.9485.4635.1576.2282.6333.9323.664.0636.022-0.4912.8814.1172.467
Percentage of CostOfRevenue4.13.06.82.35.9-6.13.94.50.45.4-3.23.63.61.63.13.02.73.21.52.32.12.33.7-0.31.82.41.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.52.26.82.05.2-4.43.83.90.34.3-2.93.23.11.43.02.62.42.61.52.01.91.83.7-0.31.61.91.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CostOfRevenue us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, cbz:BenefitsAndInsuranceServices


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value67665962616560636161575961615759596055575653
Percentage of CostOfRevenue28.629.928.330.329.332.630.130.330.828.531.929.929.829.930.132.031.831.232.533.132.430.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax24.322.328.326.025.923.529.726.425.922.729.126.526.326.329.328.528.424.931.228.828.623.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cbz:BenefitsAndInsuranceServices82.076.70.083.982.981.90.082.484.780.50.084.884.179.10.084.984.980.00.083.584.783.4

us-gaap:OperatingSegments, cbz:FinancialServices


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-302014-06-30
Value1501411291291271381241281281341221241291331191121151191061051061139910110210898100
Percentage of CostOfRevenue63.763.361.063.561.069.462.061.364.762.467.162.762.965.063.161.261.661.961.960.761.563.761.764.162.763.662.262.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax54.247.161.254.553.850.061.253.554.449.861.355.555.557.261.454.454.949.459.452.954.350.660.454.555.350.853.955.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cbz:FinancialServices80.969.40.083.682.773.40.083.483.072.60.085.285.173.70.086.787.475.30.085.887.174.60.086.287.775.585.487.0

us-gaap:OperatingSegments, cbz:NationalPractices


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-302014-06-30
Value8.4878.5418.2948.077.998.2838.1668.1048.2048.07.6477.5147.5677.2757.0317.1097.2357.0076.926.8957.0056.8776.5236.6446.6496.6016.5856.683
Percentage of CostOfRevenue3.63.83.93.93.84.14.13.94.13.74.23.83.73.63.73.83.83.64.04.04.03.94.14.24.13.94.14.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.02.83.93.43.43.04.03.43.53.03.83.43.33.13.63.43.42.93.93.53.63.14.03.63.63.13.63.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cbz:NationalPractices89.991.40.089.689.691.40.089.791.293.00.093.592.889.20.091.792.091.50.088.891.389.30.089.190.589.488.491.2

Disposal Group Not Discontinued Operation Gain Loss On Disposal

us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal

us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal


Disposal
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
Value6385000.0-587000.0-74000.057000.095000.015000.0-145000.050000.0497000.0362000.000663000.00023000.022000.0375000.0329000.050000.0101000.0-22000.05000.045000.056000.01210000.017000.068000.08000.07000.06000.048000.018000.0106000.021000.050000.02589000.088000.087000.02000.02743000.01000.089000.02000.0
Percentage of DisposalGroupNotDiscontinuedOperationGainLossOnDisposal100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.3-0.3-0.00.00.00.0-0.10.00.20.20.00.00.30.00.00.00.00.20.20.00.0-0.00.00.00.00.80.00.00.00.00.00.00.00.10.00.01.20.10.00.01.30.00.10.0

us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, cbz:BenefitsAndInsuranceServices


Disposal
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312018-03-31
Value6385000.002000.046000.055000.0663000.0
Percentage of DisposalGroupNotDiscontinuedOperationGainLossOnDisposal100.0-0.0-2.780.757.9100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.30.00.00.00.00.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cbz:BenefitsAndInsuranceServices7.70.00.00.10.10.9

us-gaap:OperatingSegments, cbz:FinancialServices


Disposal
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-587000.0-76000.011000.040000.015000.016000.050000.0497000.0
Percentage of DisposalGroupNotDiscontinuedOperationGainLossOnDisposal100.0102.719.342.1100.0-11.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.3-0.00.00.00.00.00.00.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cbz:FinancialServices0.0-0.00.00.00.00.00.00.3

General And Administrative Expense

us-gaap:GeneralAndAdministrativeExpense

us-gaap:GeneralAndAdministrativeExpense


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value131413111110101110118.873109.993107.3167.9799.2328.7689.0498.6798.346108.0718.0436.6159.8656.798.8898.306107.8218.9447.6499.9844.6157.6257.638107.28.1756.859.567.0856.8776.638
Percentage of GeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.04.86.24.84.73.85.24.94.54.34.54.64.34.33.73.84.43.65.14.34.24.64.94.33.64.64.34.84.64.95.25.34.44.32.74.14.04.84.44.63.74.60.03.93.7

us-gaap:GeneralAndAdministrativeExpense us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-30
Value131413111110101110118.873109.993107.3167.9799.2328.7689.0498.6798.346108.0718.0436.6159.8658.889
Percentage of GeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.04.86.24.84.73.85.24.94.54.34.54.64.34.33.73.84.43.65.14.34.24.64.94.33.64.64.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Gross Profit

us-gaap:GrossProfit

us-gaap:GrossProfit


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value4176-0.6383327772.432303754172527615.1672322487.2412523463.6242721432.7062418421.8441720436.5081621403.1212323407.6791821
Percentage of GrossProfit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.025.5-0.314.111.828.01.212.815.920.28.611.411.826.42.611.110.920.24.112.911.720.62.214.911.820.11.713.510.320.41.210.612.118.73.89.111.618.51.913.012.719.20.010.612.1

us-gaap:GrossProfit us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-30
Value-9.751-6.751-14.344-4.755-12.32612-7.738-9.421-0.711-11.6675.776-7.148-7.3-3.309-5.948-5.463-5.157-6.228-2.633-3.932-3.66-4.063-6.0220.491-2.881-4.117-2.467
Percentage of GrossProfit-23.4-8.82248.3-14.1-44.115.8-318.2-30.7-1.9-21.433.6-27.9-26.5-5.4-115.1-23.8-22.5-12.8-36.4-15.3-15.9-8.8-166.21.8-13.1-9.6-10.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-3.5-2.2-6.8-2.0-5.24.4-3.8-3.9-0.3-4.32.9-3.2-3.1-1.4-3.0-2.6-2.4-2.6-1.5-2.0-1.9-1.8-3.70.3-1.6-1.9-1.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:GrossProfit us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, cbz:BenefitsAndInsuranceServices


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value14201011121410131114101011161110101511111010
Percentage of GrossProfit35.626.5-1643.735.345.318.5430.844.329.627.360.141.642.126.4220.245.746.730.9165.444.144.123.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.36.85.05.05.35.25.25.74.75.55.24.85.07.05.85.15.16.26.75.75.14.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cbz:BenefitsAndInsuranceServices18.023.30.016.117.118.10.017.615.319.50.015.215.920.90.015.115.120.00.016.515.316.6

us-gaap:OperatingSegments, cbz:FinancialServices


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-302014-06-30
Value35622.147252650-1.1372526500.437212247-1.067171639-2.96171538-1.731614351615
Percentage of GrossProfit85.581.3-336.576.195.564.6-46.883.470.293.02.584.282.377.6-20.775.373.180.6-40.967.868.983.9-47.758.665.381.968.481.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.820.81.010.711.318.1-0.610.711.118.80.29.69.720.4-0.58.37.916.3-1.78.78.117.3-1.18.87.716.59.28.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cbz:FinancialServices19.130.60.016.417.326.60.016.617.027.40.014.814.926.30.013.312.624.70.014.212.925.40.013.812.324.514.613.0

us-gaap:OperatingSegments, cbz:NationalPractices


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-302014-06-30
Value0.9520.8011.0720.9390.930.7830.830.9320.7940.5990.650.5210.5840.8820.8020.6460.6310.6550.8540.8710.670.8270.8250.8110.6980.7820.8620.641
Percentage of GrossProfit2.31.0-168.02.83.31.034.13.02.11.13.82.02.11.415.52.82.81.311.83.42.91.822.82.93.21.83.53.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.30.50.40.40.30.40.40.30.20.30.20.30.40.40.30.30.30.50.40.30.40.50.40.40.40.50.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cbz:NationalPractices10.18.60.010.410.48.60.010.38.87.00.06.57.210.80.08.38.08.50.011.28.710.70.010.99.510.611.68.8

Income Loss From Continuing Operations

us-gaap:IncomeLossFromContinuingOperations

us-gaap:IncomeLossFromContinuingOperations


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value8.61350-0.09202136-1.136181637-0.9531313354.7269.8641125-0.565108.38721-0.7749.5896.68519-1.3787.2846.2417-3.2285.0815.451181.2015.2785.82918-1.2114.8396.85618-1.2525.5427.009
Percentage of IncomeLossFromContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.116.7-0.08.49.113.3-0.67.57.113.9-0.56.15.615.42.44.75.410.4-0.35.54.39.7-0.55.13.69.1-0.94.03.48.6-2.23.03.27.80.72.93.18.5-0.72.73.78.60.03.23.9

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value1166-2.069272850-4.3242151-2.3771616481.358161541-1.532181336-3.01611
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.022.0-1.011.411.918.1-2.110.09.319.0-1.27.57.021.00.77.77.517.0-0.99.17.016.3-1.88.86.2

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value-47.513-17.594-15.42-11.094-12.372-15.236-14.567-16.015-16.27-15.363-13.57-15.878-18.478-16.729-9.932-12.578-12.424-13.854-11.519-11.471-13.034-13.904-13.26-11.99-13.505
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest-423.1-26.6745.3-40.9-44.1-30.3338.8-66.5-74.2-30.0570.9-94.0-113.0-34.2-731.4-78.4-78.8-33.7751.9-62.9-95.2-38.0442.0-73.2-118.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-17.1-5.9-7.3-4.7-5.2-5.5-7.2-6.7-6.9-5.7-6.8-7.1-7.9-7.2-5.1-6.1-5.9-5.7-6.4-5.7-6.6-6.2-8.1-6.4-7.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, cbz:BenefitsAndInsuranceServices


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value21201011121410131114101011161110101512111010
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest195.330.9-507.043.545.728.9-244.056.351.129.1-440.663.970.934.7848.266.068.536.7-791.162.574.629.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.96.85.05.05.45.25.25.74.85.55.34.85.07.35.95.15.16.36.85.75.24.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cbz:BenefitsAndInsuranceServices26.523.50.016.017.318.20.017.615.519.50.015.415.922.00.015.215.320.10.016.515.416.7

us-gaap:OperatingSegments, cbz:FinancialServices


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value35621.79252650-1.0552526510.068212247-1.031171639-2.988171538-1.5661614
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest319.494.4-86.593.995.199.824.5106.3119.499.7-2.9127.0138.597.7-75.9108.4106.495.4195.095.6115.7106.552.2102.9125.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.920.80.810.711.318.1-0.510.711.118.90.09.69.720.6-0.58.47.916.3-1.78.78.017.4-1.09.07.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cbz:FinancialServices19.230.60.016.417.326.60.016.617.027.60.014.714.926.50.013.312.624.70.014.212.925.60.014.212.3

us-gaap:OperatingSegments, cbz:NationalPractices


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value0.9520.8011.0720.9390.930.7840.830.9320.7950.5990.6530.5210.5840.8820.8030.6460.6220.6550.8550.8720.6710.8270.8260.8130.699
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest8.51.2-51.83.53.31.6-19.33.93.61.2-27.53.13.61.859.14.03.91.6-55.84.84.92.3-27.55.06.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.30.50.40.40.30.40.40.30.20.30.20.30.40.40.30.30.30.50.40.30.40.50.40.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cbz:NationalPractices10.18.60.010.410.48.60.010.38.87.00.06.57.210.80.08.37.98.50.011.28.710.70.010.99.5

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value2.61615-1.9797.066.60713-3.1646.0695.32213-1.4243.2973.23813-3.3686.1724.34316-0.9677.265.30614-2.2266.7874.69613-2.1374.1264.45913-2.8972.4414.20213-0.0582.4583.51213-1.9131.6145.09513-0.7563.5912.711
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.95.3-0.93.02.84.8-1.62.52.35.0-0.71.51.45.7-1.73.02.16.7-0.53.62.76.6-1.43.62.56.3-1.42.22.56.2-1.91.42.45.6-0.01.31.96.1-1.20.92.86.50.02.01.5

Interest Expense Debt

us-gaap:InterestExpenseDebt

us-gaap:InterestExpenseDebt


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-302014-06-30
Value0.9590.8770.8160.9742.0741.1191.2561.5211.5871.4011.4341.6141.8171.781.6891.7771.6921.5171.5741.761.7331.5261.2371.842.8482.9773.1233.577
Percentage of InterestExpenseDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.30.40.40.90.40.60.60.70.50.70.70.80.80.90.90.80.60.90.90.90.70.81.01.51.41.72.0

us-gaap:InterestExpenseDebt us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value0.9590.8770.8120.9642.0651.1081.2371.5071.5731.3911.4281.6071.8021.7051.6831.7671.6831.5061.5671.7481.7231.5161.231.8312.837
Percentage of InterestExpenseDebt100.0100.099.599.099.699.098.599.199.199.399.699.699.295.899.699.499.599.399.699.399.499.399.499.599.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.30.40.40.90.40.60.60.70.50.70.70.80.70.90.90.80.60.90.90.90.70.71.01.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InterestExpenseDebt us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, cbz:BenefitsAndInsuranceServices


Interest
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value0.0040.010.0090.0110.0190.0140.0140.010.0060.0070.0150.0750.0060.010.0090.0110.0070.0120.010.01
Percentage of InterestExpenseDebt0.51.00.41.01.50.90.90.70.40.40.84.20.40.60.50.70.40.70.60.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cbz:BenefitsAndInsuranceServices0.00.00.00.00.00.00.00.00.00.00.00.10.00.00.00.00.00.00.00.0

us-gaap:InterestExpenseDebt us-gaap:LongtermDebtType

cbz:OtherInterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.0070.0060.0090.0190.0180.0170.0060.0230.0230.019
Percentage of InterestExpenseDebt0.70.71.12.00.91.50.51.51.41.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax cbz:OtherInterestExpense0.00.00.00.00.00.00.00.00.00.0

cbz:TwoThousandAndEighteenCreditFacility


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.9520.8710.8070.9552.0561.1011.1721.4981.5641.3821.3091.61.8
Percentage of InterestExpenseDebt99.399.398.998.099.198.493.398.598.698.691.399.199.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.30.40.40.90.40.60.60.70.50.70.70.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax cbz:TwoThousandAndEighteenCreditFacility0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:LineOfCredit


Interest
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.00.00.00.001
Percentage of InterestExpenseDebt0.00.00.00.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:LineOfCredit0.00.00.00.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value8.60750-0.094202136-1.153171637-0.9731313354.8479.6581024-0.686108.12921-1.906106.64519-1.3257.6886.10717-3.947629.147181.2065.3075.84818-1.1664.7176.55117-1.7244.8325.422
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.116.7-0.08.49.113.3-0.67.47.013.9-0.56.15.615.42.54.65.210.3-0.45.44.19.7-1.25.53.69.0-0.84.23.48.3-2.636.95.37.80.72.93.18.5-0.72.73.68.50.02.73.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value8.60750-0.094202136-1.153171637-0.9731313354.8479.6581024-0.686108.12921-1.906
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.116.7-0.08.49.113.3-0.67.47.013.9-0.56.15.615.42.54.65.210.3-0.45.44.19.7-1.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Nonoperating Income Expense

us-gaap:NonoperatingIncomeExpense

us-gaap:NonoperatingIncomeExpense


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value133.912114.86611-16.8243.7585.101-4.8488.356-10.7031.529-1.187-2.3463.5071.0152.0951.2420.2761.201-0.980.7221.447-3.508-3.929-0.0620.569-4.4740.427-1.45-0.148-1.438-3.582-2.556-0.75-1.293-4.9361.9050.955-8.472-4.3780.909-2.602-2.631-5.456
Percentage of NonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.01.35.52.04.8-6.11.82.1-2.13.1-5.40.7-0.5-1.01.80.51.00.50.20.6-0.50.30.9-1.9-2.1-0.00.4-2.40.2-0.7-0.1-0.9-2.1-1.1-0.4-0.7-2.60.90.6-4.8-2.40.40.0-1.5-3.0

us-gaap:NonoperatingIncomeExpense us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-30
Value6.5223.64125.011-17.0243.6615.076-4.9937.984-10.4731.549-1.185-3.3923.3320.8641.9651.1420.1631.14-1.0280.4040.833-4.438-4.009-0.269-4.759
Percentage of NonoperatingIncomeExpense47.393.0103.0102.898.2101.297.499.5103.095.597.9101.399.8144.695.085.193.891.959.194.9104.956.057.6126.5102.0433.9106.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.31.25.72.14.7-6.11.82.1-2.13.0-5.30.7-0.5-1.51.70.40.90.50.10.6-0.50.20.5-2.4-2.2-0.1-2.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NonoperatingIncomeExpense us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, cbz:BenefitsAndInsuranceServices


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value7.0830.1740.002-0.0440.1670.140.015-0.0050.160.0110.1360.1220.0150.7810.1380.0720.1110.0850.140.050.0740.064
Percentage of NonoperatingIncomeExpense51.34.40.0-0.91.5-0.80.4-0.1-3.30.1-1.38.0-1.3-33.33.97.15.36.850.74.2-7.68.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.50.10.0-0.00.10.10.0-0.00.10.00.10.10.00.30.10.00.10.00.10.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cbz:BenefitsAndInsuranceServices8.60.20.0-0.10.20.20.0-0.00.20.00.00.20.01.00.00.10.20.10.00.10.10.1

us-gaap:OperatingSegments, cbz:FinancialServices


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-302014-06-30
Value0.1940.098-0.357-0.090.0380.0590.0820.03-0.0160.361-0.369-0.142-0.0170.2650.0360.0790.0280.015-0.0280.01-0.0270.2540.1640.4750.0080.0990.191-0.058
Percentage of NonoperatingIncomeExpense1.42.5-3.1-1.80.3-0.42.20.60.34.33.4-9.31.4-11.31.07.81.31.2-10.10.82.835.211.3-13.5-0.2-159.7-4.3-13.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.0-0.2-0.00.00.00.00.0-0.00.1-0.2-0.1-0.00.10.00.00.00.0-0.00.0-0.00.10.10.30.00.00.1-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cbz:FinancialServices0.10.00.0-0.10.00.00.00.0-0.00.20.0-0.1-0.00.10.00.10.00.00.00.0-0.00.20.00.40.00.10.2-0.1

us-gaap:OperatingSegments, cbz:NationalPractices


Nonoperating
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302015-12-312015-09-302015-06-302014-09-30
Value0.00.00.00.0010.00.00.0010.0010.0-0.0090.0010.0010.0010.0010.0020.0010.004
Percentage of NonoperatingIncomeExpense0.00.00.0-0.00.00.0-0.00.00.0-0.40.40.1-0.10.1-0.1-0.0-0.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.0-0.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cbz:NationalPractices0.00.00.00.00.00.00.00.00.0-0.10.00.00.00.00.00.00.1

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value-2.5762-13.716221667-8.0581826428.326151751-2.149151339-1.808171435-4.447191533-4.084151032-5.9778.9613331.8939.0291430-4.0791416300.5941115
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.920.7-6.59.47.124.2-4.07.911.415.94.26.97.522.1-1.17.26.516.5-1.08.57.416.0-2.710.68.315.5-2.68.65.715.5-4.05.37.714.51.14.97.613.7-2.58.48.914.70.06.78.4

us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-30
Value-54.035-21.234-27.422-16.094-23.4861.788-18.228-21.091-11.277-23.347-3.097-17.427-17.293-13.337-13.264-13.442-14.389-14.996-11.682-12.611-12.006-14.308-14.093-7.552-9.496-13.982-11.356
Percentage of OperatingIncomeLoss2102.5-34.1199.9-72.2-140.12.7226.2-111.2-42.1-54.5-37.2-113.4-98.6-26.0617.2-89.5-105.3-37.6646.1-74.0-81.8-39.9316.9-38.0-62.0-42.2-71.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-19.4-7.1-13.0-6.8-9.90.6-9.0-8.8-4.8-8.6-1.6-7.8-7.4-5.7-6.8-6.5-6.8-6.2-6.5-6.3-6.1-6.4-8.6-4.0-5.1-6.5-6.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, cbz:BenefitsAndInsuranceServices


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value14201011121410131114101011161110101511111010
Percentage of OperatingIncomeLoss-577.632.6-76.553.275.521.4-130.071.541.334.8124.169.566.031.6-529.570.078.237.6-662.666.669.129.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.36.85.05.05.35.25.25.74.75.55.24.85.07.05.85.15.16.26.75.75.14.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cbz:BenefitsAndInsuranceServices18.023.30.016.117.118.10.017.615.319.50.015.215.920.90.015.115.120.00.016.515.316.6

us-gaap:OperatingSegments, cbz:FinancialServices


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-302014-06-30
Value35622.147252650-1.1372526500.437212247-1.067171639-2.96171538-1.731614351615
Percentage of OperatingIncomeLoss-1387.9100.2-15.7114.7159.074.714.1134.797.9118.45.2140.6129.292.749.7115.2122.598.3163.7102.3108.2107.938.982.493.6106.3106.7146.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.820.81.010.711.318.1-0.610.711.118.80.29.69.720.4-0.58.37.916.3-1.78.78.117.3-1.18.87.716.59.28.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cbz:FinancialServices19.130.60.016.417.326.60.016.617.027.40.014.814.926.30.013.312.624.70.014.212.925.40.013.812.324.514.613.0

us-gaap:OperatingSegments, cbz:NationalPractices


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-302014-06-30
Value0.9520.8011.0720.9390.930.7830.830.9320.7940.5990.650.5210.5840.8820.8020.6460.6310.6550.8540.8710.670.8270.8250.8110.6980.7820.8620.641
Percentage of OperatingIncomeLoss-37.01.3-7.84.25.51.2-10.34.93.01.47.83.43.31.7-37.34.34.61.6-47.25.14.62.3-18.64.14.62.45.46.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.30.50.40.40.30.40.40.30.20.30.20.30.40.40.30.30.30.50.40.30.40.50.40.40.40.50.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cbz:NationalPractices10.18.60.010.410.48.60.010.38.87.00.06.57.210.80.08.38.08.50.011.28.710.70.010.99.510.611.68.8

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value8.3734.789135.91413-15.84.9996.767-3.3119.26-9.6313.1430.63-1.2295.1962.7923.7642.7371.4752.6320.7032.1472.706-1.673-1.1262.8592.35-1.3683.9361.9753.2032.3710.5151.7793.2542.57-0.843.4384.851-4.510.0273.0812.3911.015-2.047
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.01.66.22.55.6-5.72.52.8-1.43.4-4.81.40.3-0.52.71.31.81.10.81.30.41.01.6-0.9-0.61.31.5-0.72.20.92.11.40.30.81.91.4-0.41.63.0-2.50.01.50.00.6-1.1

us-gaap:OtherNonoperatingIncomeExpense us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-30
Value7.4814.517125.96413-15.9164.8986.744-3.429.375-9.4073.1560.617-1.6875.0152.6313.6252.6261.3552.5590.6451.8192.085-2.612-1.2172.643-1.66
Percentage of OtherNonoperatingIncomeExpense89.394.398.2100.898.8100.798.099.7103.3101.297.7100.497.9137.396.594.296.395.991.997.291.784.777.1156.1108.192.4121.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.71.56.12.55.6-5.72.42.8-1.53.5-4.71.40.3-0.72.61.31.71.10.81.30.30.81.3-1.4-0.71.2-0.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherNonoperatingIncomeExpense us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, cbz:BenefitsAndInsuranceServices


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value0.6980.1740.006-0.0360.130.0960.0340.0090.1740.0210.1420.1290.030.1930.1440.0820.120.0960.1470.0620.0840.074
Percentage of OtherNonoperatingIncomeExpense8.33.60.0-0.61.0-0.60.70.1-5.30.2-1.54.14.8-15.72.82.93.23.510.02.411.93.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.10.0-0.00.10.00.00.00.10.00.10.10.00.10.10.00.10.00.10.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cbz:BenefitsAndInsuranceServices0.80.20.0-0.00.20.10.00.00.20.00.00.20.00.20.00.10.20.10.00.10.10.1

us-gaap:OperatingSegments, cbz:FinancialServices


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-302014-06-30
Value0.1940.0980.23-0.0140.0270.0190.0670.014-0.066-0.136-0.369-0.142-0.0170.2650.0360.0790.0280.015-0.0280.01-0.0270.2540.1640.4750.0080.0990.191-0.058
Percentage of OtherNonoperatingIncomeExpense2.32.01.8-0.20.2-0.11.30.22.0-1.53.8-4.5-2.7-21.60.72.80.70.5-1.90.4-3.811.86.1-28.4-0.73.5-14.0-1.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.00.1-0.00.00.00.00.0-0.0-0.1-0.2-0.1-0.00.10.00.00.00.0-0.00.0-0.00.10.10.30.00.00.1-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cbz:FinancialServices0.10.00.0-0.00.00.00.00.0-0.0-0.10.0-0.1-0.00.10.00.10.00.00.00.0-0.00.20.00.40.00.10.2-0.1

us-gaap:OperatingSegments, cbz:NationalPractices


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302015-12-312015-09-302015-06-302014-09-30
Value0.00.00.00.0010.00.00.0010.0010.0-0.0090.0010.0010.0010.0010.0020.0010.004
Percentage of OtherNonoperatingIncomeExpense0.00.00.0-0.00.00.0-0.00.00.0-0.20.10.00.10.0-0.1-0.1-0.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.0-0.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cbz:NationalPractices0.00.00.00.00.00.00.00.00.0-0.10.00.00.00.00.00.00.1

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value202136-1.153171637-0.9731313354.8479.658
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.49.113.3-0.67.47.013.9-0.56.15.615.42.54.6

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value278300211238236277203239235269199224232232195207211241178199197224164187185213157183180208149168172234172183188220162177183210165175180
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, cbz:BenefitsAndInsuranceServices


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value82877073737970767276687072776869707567686664
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax29.729.033.331.031.228.734.932.130.628.234.331.231.333.235.133.533.431.137.934.533.728.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax29.729.033.331.031.228.734.932.130.628.234.331.231.333.235.133.533.431.137.934.533.728.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cbz:BenefitsAndInsuranceServices100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, cbz:FinancialServices


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-302014-06-30
Value18620413115515418812315315418512214615118011813013215810312312215297118116143115115
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax67.067.962.365.265.068.060.764.165.668.661.565.265.277.660.962.762.865.757.761.662.467.959.363.363.167.363.163.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax67.067.962.365.265.068.060.764.165.668.661.565.265.277.660.962.762.865.757.761.662.467.959.363.363.167.363.163.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cbz:FinancialServices100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, cbz:NationalPractices


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-302014-06-30
Value9.4399.3429.3669.0098.929.0668.9969.0368.9988.5998.2978.0358.1518.1577.8337.7557.8667.6627.7747.7667.6757.7047.3487.4557.3477.3837.4477.324
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.43.14.43.83.83.34.43.83.83.24.23.63.53.54.03.73.73.24.33.93.93.44.54.04.03.54.14.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.43.14.43.83.83.34.43.83.83.24.23.63.53.54.03.73.73.24.33.93.93.44.54.04.03.54.14.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cbz:NationalPractices100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService

cbz:AccountingTaxAdvisoryAndConsulting


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value186204131155154188123153154185122146151151
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax67.067.962.365.265.068.060.764.165.668.661.565.265.265.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax67.067.962.365.265.068.060.764.165.668.661.565.265.265.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax cbz:AccountingTaxAdvisoryAndConsulting100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cbz:CoreBenefitsAndInsuranceServices


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value7984667171766773697366676868
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax28.528.031.730.030.127.633.230.629.527.233.330.029.629.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax28.528.031.730.030.127.633.230.629.527.233.330.029.629.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax cbz:CoreBenefitsAndInsuranceServices100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cbz:ManagedNetworkingAndHardwareServices


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value6.9696.8956.716.5926.5816.5756.4836.5536.5226.4246.1935.9026.1216.121
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.52.33.22.82.82.43.22.72.82.43.12.62.62.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.52.33.22.82.82.43.22.72.82.43.12.62.62.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax cbz:ManagedNetworkingAndHardwareServices100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cbz:NationalPracticesConsulting


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2.472.4472.6562.4172.3392.4912.5132.4832.4762.1752.1042.1332.032.03
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.90.81.31.01.00.91.21.01.10.81.11.00.90.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.90.81.31.01.00.91.21.01.10.81.11.00.90.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax cbz:NationalPracticesConsulting100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cbz:NonCoreBenefitsAndInsuranceServices


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3.3323.1693.3262.3842.5473.143.4973.5512.682.7172.0812.8773.7753.775
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.21.11.61.01.11.11.71.51.11.01.01.31.61.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.21.11.61.01.11.11.71.51.11.01.01.31.61.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax cbz:NonCoreBenefitsAndInsuranceServices100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

cbz:AccountingTaxAdvisoryAndConsulting, cbz:FinancialServices


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value186204131155154188123153154185122146151151
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax67.067.962.365.265.068.060.764.165.668.661.565.265.265.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax67.067.962.365.265.068.060.764.165.668.661.565.265.265.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax cbz:AccountingTaxAdvisoryAndConsulting cbz:FinancialServices100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cbz:CoreBenefitsAndInsuranceServices, cbz:BenefitsAndInsuranceServices


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value7984667171766773697366676868
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax28.528.031.730.030.127.633.230.629.527.233.330.029.629.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax28.528.031.730.030.127.633.230.629.527.233.330.029.629.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax cbz:CoreBenefitsAndInsuranceServices cbz:BenefitsAndInsuranceServices100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cbz:ManagedNetworkingAndHardwareServices, cbz:NationalPractices


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value6.9696.8956.716.5926.5816.5756.4836.5536.5226.4246.1935.9026.1216.121
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.52.33.22.82.82.43.22.72.82.43.12.62.62.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.52.33.22.82.82.43.22.72.82.43.12.62.62.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax cbz:ManagedNetworkingAndHardwareServices cbz:NationalPractices100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cbz:NationalPracticesConsulting, cbz:NationalPractices


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2.472.4472.6562.4172.3392.4912.5132.4832.4762.1752.1042.1332.032.03
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.90.81.31.01.00.91.21.01.10.81.11.00.90.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.90.81.31.01.00.91.21.01.10.81.11.00.90.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax cbz:NationalPracticesConsulting cbz:NationalPractices100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cbz:NonCoreBenefitsAndInsuranceServices, cbz:BenefitsAndInsuranceServices


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3.3323.1693.3262.3842.5473.143.4973.5512.682.7172.0812.8773.7753.775
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.21.11.61.01.11.11.71.51.11.01.01.31.61.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.21.11.61.01.11.11.71.51.11.01.01.31.61.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax cbz:NonCoreBenefitsAndInsuranceServices cbz:BenefitsAndInsuranceServices100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementBusinessSegments

cbz:BenefitsAndInsuranceServices


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value8287707373797076727668707272
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax29.729.033.331.031.228.734.932.130.628.234.331.231.331.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax29.729.033.331.031.228.734.932.130.628.234.331.231.331.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax cbz:BenefitsAndInsuranceServices100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cbz:FinancialServices


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value186204131155154188123153154185122146151151
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax67.067.962.365.265.068.060.764.165.668.661.565.265.265.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax67.067.962.365.265.068.060.764.165.668.661.565.265.265.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax cbz:FinancialServices100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cbz:NationalPractices


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value9.4399.3429.3669.0098.929.0668.9969.0368.9988.5998.2978.0358.1518.151
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.43.14.43.83.83.34.43.83.83.24.23.63.53.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.43.14.43.83.83.34.43.83.83.24.23.63.53.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax cbz:NationalPractices100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value278300211238236277203239235269199224232266195207211241178199197224164187185213157183180208149168172234172183188220162177183210165175180
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0114.4100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value1656155115131425142716161400139713761377118311891210121411761128115011111118105211221016998952974991991924910932897858980998970831822857812780781756
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value944824811707732946741740742753589587621642645598627603638578662571570506525572591520511535523494655683674541539577552520524526
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets57.053.153.649.651.358.552.953.054.054.749.849.451.352.954.953.054.554.357.154.959.056.257.153.254.057.859.756.356.257.458.357.666.968.469.665.165.667.368.066.767.069.6

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value1656155115131425142716161400139713761377118311891210121411761128115011111118105211221016998952974991991924910932897858980998970831822857812780781756
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value712727702718695670659656634623593601588571530530523507480474460445427445448418399403399397374363324315295290283280260259257229270241
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets43.046.946.450.448.741.547.147.046.045.350.250.648.747.145.147.045.545.742.945.141.043.842.946.846.042.240.343.743.842.641.742.433.131.630.434.934.432.732.033.333.030.40.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value-1.357-1.415-2.269-2.495-2.309-1.932-0.68-0.851-0.722-0.3-0.4820.1610.106-0.068-0.182-0.271-0.287-0.324-0.504-0.924-1.074-0.944-0.633-0.633-0.695-0.725-0.753-0.779-0.94-0.922-1.042
Percentage of StockholdersEquity-0.2-0.2-0.3-0.3-0.3-0.3-0.1-0.1-0.1-0.0-0.10.00.0-0.0-0.0-0.1-0.1-0.1-0.1-0.2-0.2-0.2-0.1-0.1-0.2-0.2-0.3-0.3-0.4-0.3-0.4
Percentage of Assets-0.1-0.1-0.1-0.2-0.2-0.1-0.0-0.1-0.1-0.0-0.00.00.0-0.0-0.0-0.0-0.0-0.0-0.0-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.10.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value757749740731725719714706700696692690686679675670668660655648645637634650604580560551539518508
Percentage of StockholdersEquity106.3102.9105.5101.9104.3107.4108.4107.6110.5111.7116.6114.7116.7118.8127.2126.4127.7130.1136.6136.7140.2142.9148.3146.0151.1155.0190.0211.9234.9191.6210.3
Percentage of Assets45.748.348.951.350.844.551.050.650.950.558.558.056.855.957.459.458.159.458.661.657.562.763.668.361.064.757.867.971.30.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value1.3491.3461.3411.3381.3351.3321.3311.3241.3211.3181.3141.3141.3111.3051.3011.2971.2961.2861.2821.2761.2751.2641.2621.2541.1881.1491.1241.1111.0961.0811.068
Percentage of StockholdersEquity0.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.30.30.30.30.30.30.30.30.30.40.40.50.40.4
Percentage of Assets0.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value616608557557537516479480462446408409395382345340330319294295284276254256220190105734521-10.155
Percentage of StockholdersEquity86.683.679.477.777.477.072.773.273.071.668.968.067.267.065.064.263.263.061.462.361.862.059.657.655.251.035.628.420.07.9-4.2
Percentage of Assets37.239.236.939.237.731.934.234.433.632.434.634.432.731.529.430.228.728.826.428.125.427.225.527.022.321.310.89.16.10.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value-661.772-629.439-595.297-570.504-566.762-565.18-535.693-531.356-530.262-520.088-508.53-499.167-495.455-491.604-491.046-481.572-476.986-473.582-471.311-470.124-469.995-468.304-462.167-462.167-425.685-397.548-371.08-365.364-355.851-269.642-256.295
Percentage of StockholdersEquity-92.9-86.5-84.7-79.5-81.5-84.3-81.3-81.0-83.6-83.4-85.7-82.9-84.1-86.0-92.5-90.8-91.1-93.4-98.2-99.0-102.1-105.0-108.0-103.7-106.5-106.2-125.7-140.4-154.9-99.6-106.1
Percentage of Assets-39.9-40.6-39.3-40.0-39.7-35.0-38.2-38.0-38.5-37.8-43.0-42.0-40.9-40.5-41.7-42.7-41.5-42.6-42.1-44.6-41.9-46.1-46.3-48.5-42.9-44.3-38.2-45.0-47.10.00.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value509471436425472675456447458457423423446463448403428432441383458392372336352366379334328360350314434378350293293327292275295253
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets30.730.428.829.933.141.832.632.133.333.235.835.636.938.238.135.837.238.939.536.440.838.637.335.336.137.038.336.236.138.639.136.644.337.936.135.335.738.236.035.337.933.5

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-312008-12-31
Value4.6776.7784.6526.1139.622160.5672.7232.6282.1430.643.4931.9210.2950.4241.2781.1612.4243.4940.5148.4921.5610.851.842.250.1280.9790.3973.9484.4070.7713.5531.1870.2040.8990.4543.0693.1891.6130.5330.2110.2310.7240.5310.147.1787.422
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.40.30.40.713.40.00.20.20.20.10.30.20.00.00.10.10.20.30.00.80.20.10.20.20.00.10.00.40.50.10.40.10.00.10.10.40.40.20.10.00.00.10.00.00.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value15315217012414433914698971061303641303333362931153
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.39.811.38.810.121.010.57.17.17.711.03.03.42.52.83.03.12.62.815.4

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value292270216248267263222260271264207234245261188213218220175194193197153175177188143179179184143161161193154166164179137158155138
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets17.717.414.317.518.716.315.918.719.719.217.519.720.321.516.018.919.019.915.718.517.219.415.418.518.219.014.419.419.719.815.918.816.519.316.020.019.921.016.920.319.918.3

Other Assets Current

us-gaap:OtherAssetsCurrent

us-gaap:OtherAssetsCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value3325242122242425262426262724222325242121181615131414151214141412128.249129.9351011118.4341011
Percentage of OtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.01.71.61.51.61.51.71.81.91.82.32.22.32.01.92.02.22.21.92.11.71.61.61.41.51.51.51.41.61.61.61.41.30.81.21.21.31.41.41.11.31.6

Assets Noncurrent

us-gaap:AssetsNoncurrent

us-gaap:AssetsNoncurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value114710801077999955940944949918919759766763750728724722678676669664624625611
Percentage of AssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets69.369.671.270.166.958.267.467.966.766.864.264.463.161.861.964.262.861.160.563.659.261.462.761.7

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value12211911110291888886106105
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.18.59.48.78.28.98.99.610.913.0

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

cbz:BuildingsAndLeaseholdImprovements


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value37332826191819181819
Percentage of PropertyPlantAndEquipmentGross30.127.925.625.721.620.421.921.417.618.1
Percentage of Assets2.42.42.42.21.81.82.02.11.92.4
Percentage of Assets cbz:BuildingsAndLeaseholdImprovements0.00.00.00.00.00.00.00.00.00.0

us-gaap:Equipment


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value23211713111111101818
Percentage of PropertyPlantAndEquipmentGross19.117.716.113.312.812.913.012.117.317.8
Percentage of Assets1.61.51.51.21.11.11.21.21.92.3
Percentage of Assets us-gaap:Equipment0.00.00.00.00.00.00.00.00.00.0

us-gaap:FurnitureAndFixtures


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value28272725232321222423
Percentage of PropertyPlantAndEquipmentGross22.823.124.925.226.026.524.926.023.122.5
Percentage of Assets1.92.02.32.22.12.42.22.52.52.9
Percentage of Assets us-gaap:FurnitureAndFixtures0.00.00.00.00.00.00.00.00.00.0

us-gaap:SoftwareAndSoftwareDevelopmentCosts


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value34373736363535
Percentage of PropertyPlantAndEquipmentGross28.131.233.535.839.640.240.2
Percentage of Assets2.32.73.23.13.33.63.6
Percentage of Assets us-gaap:SoftwareAndSoftwareDevelopmentCosts0.00.00.00.00.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value81797776726869678584
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.45.76.56.56.56.97.17.58.810.4

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value403941414039393836373431282726242319191919192020201918191919191818202020202021222123
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.42.62.72.92.82.52.82.72.72.72.92.62.42.22.22.22.11.81.71.81.81.92.02.12.12.01.92.12.12.12.12.21.92.12.12.42.52.42.72.92.83.2

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-03-312012-12-312012-09-302012-06-302011-12-312010-12-31
Value68358858856656656456056055152852752648948747847444844744144244243541641020384440440392384377344
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets45.142.042.141.141.147.747.146.345.444.946.745.844.043.645.442.244.144.846.445.444.643.945.045.12.242.944.245.447.146.746.445.5

us-gaap:Goodwill us-gaap:BusinessAcquisition

cbz:SeriesOfBusinessAcquisitionInTwoThousandNineteenAndTwoThousandTwenty


Goodwillus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value9748111124242.1652.165
Percentage of Goodwill14.30.00.00.04.14.10.40.4
Percentage of Assets6.43.40.80.71.71.70.20.2
Percentage of Assets cbz:SeriesOfBusinessAcquisitionInTwoThousandNineteenAndTwoThousandTwenty0.00.00.00.00.00.00.00.0

cbz:SeriesOfBusinessAcquisitionOne


Goodwillus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-03-312015-12-312015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value48111124242.1652.23632323240393939340.988136.865513126209.278
Percentage of Goodwill0.00.00.04.14.10.40.46.45.85.85.97.77.57.58.17.10.23.01.611.97.76.4100.02.4
Percentage of Assets3.40.80.71.71.70.20.23.02.72.72.73.53.53.43.63.10.11.30.75.23.52.92.21.0
Percentage of Assets cbz:SeriesOfBusinessAcquisitionOne0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:SeriesOfIndividuallyImmaterialBusinessAcquisitions


Goodwillus-gaap:
Period End2021-06-302020-06-30
Value3911
Percentage of Goodwill0.00.0
Percentage of Assets2.40.8
Percentage of Assets us-gaap:SeriesOfIndividuallyImmaterialBusinessAcquisitions0.00.0

us-gaap:Goodwill us-gaap:StatementBusinessSegments

cbz:BenefitsAndInsuranceServices


Goodwillus-gaap:
Period End2021-06-302020-12-312020-06-302019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value1.79531311252233219214178164
Percentage of Goodwill0.045.90.042.941.341.644.039.937.9
Percentage of Assets0.120.70.818.019.718.719.217.916.6
Percentage of Assets cbz:BenefitsAndInsuranceServices0.00.00.00.00.00.00.00.00.0

cbz:FinancialServices


Goodwillus-gaap:
Period End2021-06-302020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value37368334329306271267268260259233203
Percentage of Goodwill0.053.956.858.458.155.759.761.767.858.961.859.1
Percentage of Assets2.224.323.927.926.124.326.827.129.126.828.726.9
Percentage of Assets cbz:FinancialServices0.00.00.00.00.00.00.00.00.00.00.00.0

Intangible Assets Net Including Goodwill

us-gaap:IntangibleAssetsNetIncludingGoodwill

us-gaap:IntangibleAssetsNetIncludingGoodwill


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value807756756695661666654658632635637636640631613615618582584575573534535528530533526505498491469470474547551472465458
Percentage of IntangibleAssetsNetIncludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets48.848.850.048.846.341.246.747.145.946.253.853.552.952.052.154.553.852.452.254.751.052.653.755.554.453.853.154.754.852.852.354.848.554.856.856.856.656.4

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value153146147143143138140148145145
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.39.59.810.110.08.610.110.710.610.6

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value3662000.03510000.04052000.04301000.03203000.03876000.02989000.03205000.03967000.04692000.03844000.04203000.03998000.04027000.02562000.02166000.02048000.02101000.02006000.01869000.01908000.01960000.03900000.03689000.04260000.04526000.03977000.07619000.06672000.05789000.06238000.07238000.07693000.08096000.08570000.05646000.05468000.05877000.06301000.06729000.07558000.08112000.0
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.20.30.30.20.20.20.20.30.30.30.40.30.30.20.20.20.20.20.20.20.20.40.40.40.50.40.80.70.60.70.80.80.80.90.70.70.70.80.91.01.1

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value996064508662686387615857806351476247454254363535483836384434373340373939463534292830
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.03.94.23.66.13.94.94.66.44.55.04.96.75.24.44.25.44.24.14.04.93.63.63.75.03.83.74.14.93.74.23.94.23.84.14.85.74.24.33.83.74.1

Accrued Income Taxes Current

us-gaap:AccruedIncomeTaxesCurrent

us-gaap:AccruedIncomeTaxesCurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-09-302017-06-302017-03-312016-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-03-312011-12-312011-09-302011-06-302010-12-31
Value2.397152.7881017130.0577.1047.307130.464106.946181.0489.1196.985142.3846.344.951120.025388.612131.372100.04.3637.2380.0
Percentage of AccruedIncomeTaxesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0
Percentage of Assets0.11.00.20.71.20.80.00.50.51.00.00.90.61.60.11.00.71.40.20.70.51.30.04.50.91.30.11.20.00.60.90.0

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value423333378298333309365310324311321281305288334262290277339251329250271219229233295226225226267250246259269204200211226177195229
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets25.621.525.020.923.319.126.122.223.622.627.223.725.223.728.423.325.225.030.323.929.424.727.223.023.623.629.824.524.824.329.829.225.225.927.824.624.324.727.822.825.030.3

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value30303029282829292928
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.92.02.02.12.01.82.12.12.12.1

Other Liabilities Current

us-gaap:OtherLiabilitiesCurrent

us-gaap:OtherLiabilitiesCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value561413141415131512121312131417141611161113121113121313141316121719191620313233282327
Percentage of OtherLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.40.90.91.01.01.00.91.10.90.91.21.11.11.21.41.31.41.11.41.11.21.31.21.41.21.41.41.51.41.81.42.02.01.91.72.53.83.84.13.73.13.6

Liabilities Noncurrent

us-gaap:LiabilitiesNoncurrent

us-gaap:LiabilitiesNoncurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value520490432409399636375430418442268306315354311335337326299326332320299287295296
Percentage of LiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets31.431.628.628.728.039.426.830.830.432.122.725.726.129.226.429.729.329.426.731.029.631.530.030.230.429.9

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent

us-gaap:LongTermDebtNoncurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value162161107109119381104158157180133165178214177205209211190218233232204
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.810.47.17.78.323.67.411.411.413.111.313.914.717.615.118.218.219.017.020.720.822.920.5

Unsecured Long Term Debt

us-gaap:UnsecuredLongTermDebt

us-gaap:UnsecuredLongTermDebt


Unsecured
Period End2020-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-03-312014-09-302014-07-282014-06-302014-03-312013-12-312012-12-312010-06-04
Value400400400400400400400400400275275275275275
Percentage of UnsecuredLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets26.438.035.639.340.142.040.443.30.030.229.530.628.30.0

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxLiabilitiesNet


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value14128.7529.3321211
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0100.0100.0
Percentage of Assets0.90.80.60.70.90.8

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value9.8681011159.9622.8881.7392.0241.8621.621221717161516151412127.6247.2237.4567.5228.2168.5098.2668.9551010101011101011242321261923
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.70.81.10.70.20.10.10.10.11.91.51.51.31.31.41.41.31.11.20.70.70.70.80.80.90.81.01.11.11.21.21.21.01.11.43.02.72.63.42.53.1

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value146140142139135129132139136138
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.89.09.49.89.58.09.410.09.910.0

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value3028323232
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0100.0100.0100.0100.0
Percentage of Assets2.02.02.32.02.3

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value2726262626
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0100.0100.0100.0100.0
Percentage of Assets1.81.81.91.61.9

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value2423252424
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0100.0100.0100.0100.0
Percentage of Assets1.61.61.81.51.7

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-312020-06-302020-03-312019-12-31
Value22222221
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0100.0100.0100.0
Percentage of Assets1.51.61.41.5

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-312020-06-302020-03-312019-12-31
Value52686867
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0100.0100.0100.0
Percentage of Assets3.54.84.24.8

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value172168163158161169166167
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.411.811.49.811.512.112.112.1

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value193191192200206
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0100.0100.0100.0100.0
Percentage of Assets12.813.413.512.414.7

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value2122294245
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0100.0100.0100.0100.0
Percentage of Assets1.41.62.12.63.2

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value712727702718695670659656634623593601588571530530523507480474460445427445448418399403399397374363324315295290283280260259257229270241
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets43.046.946.450.448.741.547.147.046.045.350.250.648.747.145.147.045.545.742.945.141.043.842.946.846.042.240.343.743.842.641.742.433.131.630.434.934.432.732.033.333.030.40.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value-1.357-1.415-2.269-2.495-2.309-1.932-0.68-0.851-0.722-0.3-0.4820.1610.106-0.068-0.182-0.271-0.287-0.324-0.504-0.924-1.074-0.944-0.633-0.633-0.695-0.725-0.753-0.779-0.94-0.922-1.042
Percentage of StockholdersEquity-0.2-0.2-0.3-0.3-0.3-0.3-0.1-0.1-0.1-0.0-0.10.00.0-0.0-0.0-0.1-0.1-0.1-0.1-0.2-0.2-0.2-0.1-0.1-0.2-0.2-0.3-0.3-0.4-0.3-0.4
Percentage of Assets-0.1-0.1-0.1-0.2-0.2-0.1-0.0-0.1-0.1-0.0-0.00.00.0-0.0-0.0-0.0-0.0-0.0-0.0-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.10.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value757749740731725719714706700696692690686679675670668660655648645637634650604580560551539518508
Percentage of StockholdersEquity106.3102.9105.5101.9104.3107.4108.4107.6110.5111.7116.6114.7116.7118.8127.2126.4127.7130.1136.6136.7140.2142.9148.3146.0151.1155.0190.0211.9234.9191.6210.3
Percentage of Assets45.748.348.951.350.844.551.050.650.950.558.558.056.855.957.459.458.159.458.661.657.562.763.668.361.064.757.867.971.30.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value1.3491.3461.3411.3381.3351.3321.3311.3241.3211.3181.3141.3141.3111.3051.3011.2971.2961.2861.2821.2761.2751.2641.2621.2541.1881.1491.1241.1111.0961.0811.068
Percentage of StockholdersEquity0.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.30.30.30.30.30.30.30.30.30.40.40.50.40.4
Percentage of Assets0.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value616608557557537516479480462446408409395382345340330319294295284276254256220190105734521-10.155
Percentage of StockholdersEquity86.683.679.477.777.477.072.773.273.071.668.968.067.267.065.064.263.263.061.462.361.862.059.657.655.251.035.628.420.07.9-4.2
Percentage of Assets37.239.236.939.237.731.934.234.433.632.434.634.432.731.529.430.228.728.826.428.125.427.225.527.022.321.310.89.16.10.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value-661.772-629.439-595.297-570.504-566.762-565.18-535.693-531.356-530.262-520.088-508.53-499.167-495.455-491.604-491.046-481.572-476.986-473.582-471.311-470.124-469.995-468.304-462.167-462.167-425.685-397.548-371.08-365.364-355.851-269.642-256.295
Percentage of StockholdersEquity-92.9-86.5-84.7-79.5-81.5-84.3-81.3-81.0-83.6-83.4-85.7-82.9-84.1-86.0-92.5-90.8-91.1-93.4-98.2-99.0-102.1-105.0-108.0-103.7-106.5-106.2-125.7-140.4-154.9-99.6-106.1
Percentage of Assets-39.9-40.6-39.3-40.0-39.7-35.0-38.2-38.0-38.5-37.8-43.0-42.0-40.9-40.5-41.7-42.7-41.5-42.6-42.1-44.6-41.9-46.1-46.3-48.5-42.9-44.3-38.2-45.0-47.10.00.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value1349000.01346000.01341000.01338000.01335000.01332000.01331000.01324000.01321000.01318000.01314000.01314000.01311000.01305000.01301000.01297000.01296000.01286000.01282000.01276000.01275000.01264000.01262000.01254000.01250000.01193000.01188000.01183000.01167000.01160000.01149000.01131000.01131000.01126000.01124000.01119000.01117000.01112000.01111000.01108000.01103000.01096000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.1

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value757749740731725719714706700696692690686679675670668660655648645637634650645608604599593589580566563562560556554553551547543539
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets45.748.348.951.350.844.551.050.650.950.558.558.056.855.957.459.458.159.458.661.657.562.763.668.366.361.461.064.865.263.264.765.957.556.457.867.067.464.567.970.269.571.3

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value616608557557537516479480462446408409395382345340330319294295284276254256246239220222214208190194132123105103989273757045
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets37.239.236.939.237.731.934.234.433.632.434.634.432.731.529.430.228.728.826.428.125.427.225.527.025.324.222.324.023.522.321.322.713.512.410.812.512.010.89.19.69.06.1

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value-1357000.0-1415000.0-2269000.0-2495000.0-2309000.0-1932000.0-680000.0-851000.0-722000.0-300000.0-482000.0161000.0106000.0-68000.0-182000.0-271000.0-287000.0-324000.0-504000.0-924000.0-1074000.0-944000.0-633000.0-633000.0-649000.0-557000.0-695000.0-694000.0-628000.0-716000.0-725000.0-751000.0-815000.0-660000.0-753000.0-730000.0-783000.0-699000.0-779000.0-858000.0-599000.0-940000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.1-0.1-0.1-0.2-0.2-0.1-0.0-0.1-0.1-0.0-0.00.00.0-0.0-0.0-0.0-0.0-0.0-0.0-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1

Treasury Stock Value

us-gaap:TreasuryStockValue

us-gaap:TreasuryStockValue


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312010-09-162010-09-14
Value6616295955705665655355315305205084994954914914814764734714704694684624624444304254184094013973973713713713713693653653633563552548
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 Assets39.940.639.340.039.735.038.238.038.537.843.042.040.940.541.742.741.542.642.144.641.946.146.348.545.643.542.945.244.943.144.346.337.937.238.244.644.942.745.046.645.647.10.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value81-14.827652674-18.647482944-24.753412261-20.5381630-13.263361239-17.162212128-24.315211726-21.191-12.113-3.28826-12.128161236-11.285201426-3.751115
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax29.1-4.930.811.031.3-6.724.012.418.8-9.221.19.926.5-8.819.67.914.4-5.520.26.320.0-7.713.111.515.5-11.413.49.614.6-10.1-8.1-1.915.1-5.29.56.619.6-5.112.78.314.6-1.87.29.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-40.3660.229-36.915-22.2988.4524.355-2.994-13.812-1.143-9.736-89.777-0.275.01637-72.87111-17.0948-85.17867-50.11217-67.172.5269.13248-82.842-17.3191520-67.007211228.895-99.807-9.12618-13.72-34.368.46110-40.535-4.431-23.168
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-14.50.1-17.5-9.43.61.6-1.5-5.8-0.5-3.6-45.1-0.12.216.1-37.35.6-8.120.2-47.633.7-25.48.0-40.91.44.922.7-52.8-9.48.69.9-44.7125.012.83.8-57.7-5.09.7-6.2-21.14.85.9-19.3-2.7-13.2

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-39.622-2.9617-23.498-278.3322071.924-14.397-52.10110-6.542-27.308-55.234-20.29633-28.0224.09676-205.443-47.0352.53883-5.54-55.3422614-22.763-37.58543-7.1817.731
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-14.2-1.08.3-9.9-117.574.90.9-6.0-22.13.7-3.3-12.2-23.7-8.717.3-13.52.050.9-121.7-27.31.148.5-3.0-29.312.09.1-12.9-20.520.8-4.44.4

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1.133-17.55845-19.523-195.71193471.625-8.911-24.464-54.343-5.41211-3.341-19.246-2.7037.01-2.299
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.4-5.821.6-8.2-82.669.723.50.7-3.8-9.1-27.3-2.44.9-1.4-9.9-1.33.3-1.0

Depreciation Depletion And Amortization

us-gaap:DepreciationDepletionAndAmortization

us-gaap:DepreciationDepletionAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value6.6246.2525.8625.7865.7875.7045.7355.6345.3175.6596.1475.8525.9015.7755.8945.8885.6385.6415.7395.6775.4375.2455.2215.1175.0644.9874.8315.1884.9644.8484.744.774.7495.825.4854.2124.1495.2285.2435.1074.9655.035.0755.044
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Accounts Payable

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsPayable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value41-4.8739.604-36.21424-6.3364.784-23.942262.860.866-18.688135.5013.799-14.437131.2853.246-12.297180.9950.428-13.507101.301-4.115-6.7119.838-2.8383.88-7.0996.048-1.655-0.424-6.861100.5435.1131.1391.279-3.3193.583-2.862
Percentage of IncreaseDecreaseInAccountsPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value1454-34.627-19.6324.97942-38.496-11.6597.79857-28.269-5.837-19.33764-24.246-2.902-5.0846-19.4782.227-8.04644-22.4230.412-9.95247-30.121.11-4.88240-17.1750.628-11.77639-18.2983.706-14.55643-18.8540.673-13.17632-16.8540.922
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value81-14.827652674-18.647482944-24.753412261-20.5381630-13.263361239-17.162212128-24.315211726-21.191-12.113-3.28826-12.128161236-11.285201426-3.751115
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax29.1-4.930.811.031.3-6.724.012.418.8-9.221.19.926.5-8.819.67.914.4-5.520.26.320.0-7.713.111.515.5-11.413.49.614.6-10.1-8.1-1.915.1-5.29.56.619.6-5.112.78.314.6-1.87.29.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value8.60750-0.094202136-1.153171637-0.9731313354.8479.6581024-0.686108.12921-1.906106.64519-1.3257.6886.10717-3.947629.147181.2065.3075.84818-1.1664.7176.55117-1.7244.8325.422
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.116.7-0.08.49.113.3-0.67.47.013.9-0.56.15.615.42.54.65.210.3-0.45.44.19.7-1.25.53.69.0-0.84.23.48.3-2.636.95.37.80.72.93.18.5-0.72.73.68.5-1.02.73.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value8.60750-0.094202136-1.153171637-0.9731313354.8479.6581024-0.686108.12921-1.906
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.116.7-0.08.49.113.3-0.67.47.013.9-0.56.15.615.42.54.65.210.3-0.45.44.19.7-1.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value202136-1.153171637-0.9731313354.8479.658
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.49.113.3-0.67.47.013.9-0.56.15.615.42.54.6

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value2599000.02855000.02485000.02257000.02023000.01859000.02590000.0809000.01508000.03325000.0525000.01457000.01390000.01381000.01350000.01488000.01436000.01511000.01508000.01363000.01506000.01521000.01519000.01590000.01324000.01363000.01373000.0
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-40.3660.229-36.915-22.2988.4524.355-2.994-13.812-1.143-9.736-89.777-0.275.01637-72.87111-17.0948-85.17867-50.11217-67.172.5269.13248-82.842-17.3191520-67.007211228.895-99.807-9.12618-13.72-34.368.46110-40.535-4.431-23.168
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-14.50.1-17.5-9.43.61.6-1.5-5.8-0.5-3.6-45.1-0.12.216.1-37.35.6-8.120.2-47.633.7-25.48.0-40.91.44.922.7-52.8-9.48.69.9-44.7125.012.83.8-57.7-5.09.7-6.2-21.14.85.9-19.3-2.7-13.2

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value2.1121.1462.094.182.6652.6413.5943.3631.4645.4524.8244.3072.8522.6413.0222.1214.9891.761.2981.0060.9570.881.2040.8862.3172.9831.1131.4120.6951.6171.9231.5251.0161.7440.9551.0441.90.1680.532.7880.410.5310.6270.654
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments To Acquire Investments

us-gaap:PaymentsToAcquireInvestments

us-gaap:PaymentsToAcquireInvestments


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-30
Value0.00.00.03.4476.0457.2514.459.477.6810.44.1756.171.52.2581.37104.0552.3371.4033.562.9355.8333.133.5313.26
Percentage of PaymentsToAcquireInvestments0.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-39.622-2.9617-23.498-278.3322071.924-14.397-52.10110-6.542-27.308-55.234-20.29633-28.0224.09676-205.443-47.0352.53883-5.54-55.3422614-22.763-37.58543-7.1817.731
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-14.2-1.08.3-9.9-117.574.90.9-6.0-22.13.7-3.3-12.2-23.7-8.717.3-13.52.050.9-121.7-27.31.148.5-3.0-29.312.09.1-12.9-20.520.8-4.44.4

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-312012-09-302011-12-312011-09-302010-12-312010-09-30
Value3133243.0541.582294.3371.09410119.3633.7123.8510.5589.4744.5863.4042.2711.1870.1291.6916.1370.017135.0077.6588.6567.9483.8750.0250.01.2621.5267.3390.11578
Percentage of PaymentsForRepurchaseOfCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value1327000.01423000.01820000.02012000.02077000.02296000.02412000.03064000.03244000.03433000.03622000.03646000.03870000.03505000.03844000.04133000.04219000.04038000.04376000.04755000.05005000.04756000.04885000.05498000.05784000.05375000.05602000.06139000.06401000.05265000.06035000.07825000.08207000.07488000.07541000.07601000.07675000.06825000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value16.516.1215.0214.4714.1413.8213.5812.5712.4312.2211.9711.9511.699.969.679.439.388.088.027.977.947.527.57.437.397.077.067.097.086.746.887.057.037.187.187.187.197.54
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

cbz:RestrictedStockUnitsAndAwards


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value34000.0140000.00046000.0132000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod100.0100.00.00.0100.0100.0

us-gaap:PerformanceShares


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0140000.0000132000.0000173000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod0.0100.00.00.00.0100.00.00.00.00.0

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value8.752116.7643.3393.5450.106
Percentage of DeferredTaxLiabilities100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet

us-gaap:DeferredTaxAssetsNet


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value44343229403936373633
Percentage of DeferredTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312014-01-012013-12-312012-12-312011-12-312010-12-312009-12-31
Value1536000.02536000.02819000.03882000.04090000.04287000.04591000.01200000.05508000.03618000.03979000.04794000.06103000.0
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value2663000.02799000.01840000.01657000.01314000.01376000.01079000.0926000.01237000.02363000.0
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cbz:AllowanceForDoubtfulAccountsReceivableWriteOffsAndNetOfRecoveries

cbz:AllowanceForDoubtfulAccountsReceivableWriteOffsAndNetOfRecoveries


Allowance
Period End2021-06-302021-03-312020-12-31
Value644000.02128000.02716000.0
Percentage of AllowanceForDoubtfulAccountsReceivableWriteOffsAndNetOfRecoveries100.0100.0100.0

cbz:AssetAcquisitionEstimatedAnnualizedRevenue cbz:AssetAcquisition, us-gaap:SubsequentEventType

cbz:AssetAcquisitionEstimatedAnnualizedRevenue

cbz:WrightRetirementServicesLLC, us-gaap:SubsequentEvent


Asset
Period End2021-04-01
Value1200000.0
Percentage of AssetAcquisitionEstimatedAnnualizedRevenue100.0

cbz:AvailableForSaleSecuritiesDebtSecuritiesFairMarketValueAdjustment

cbz:AvailableForSaleSecuritiesDebtSecuritiesFairMarketValueAdjustment


Available
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-30
Value-75000.0-142000.0-52000.062000.0-62000.0-99000.0
Percentage of AvailableForSaleSecuritiesDebtSecuritiesFairMarketValueAdjustment100.0100.0100.0100.0100.0100.0

cbz:AvailableForSaleSecuritiesDebtSecuritiesMaturities

cbz:AvailableForSaleSecuritiesDebtSecuritiesMaturities


Available
Period End2020-09-302019-12-312019-09-30
Value4.6214.8257.202
Percentage of AvailableForSaleSecuritiesDebtSecuritiesMaturities100.0100.0100.0

cbz:AvailableForSaleSecuritiesDebtSecuritiesPurchases

cbz:AvailableForSaleSecuritiesDebtSecuritiesPurchases


Available
Period End2020-09-302019-12-312019-09-30
Value0.06.0457.251
Percentage of AvailableForSaleSecuritiesDebtSecuritiesPurchases0.0100.0100.0

cbz:AvailableForSaleSecuritiesDebtSecuritiesRedemptions

cbz:AvailableForSaleSecuritiesDebtSecuritiesRedemptions


Available
Period End2020-09-302019-12-312019-09-30
Value3.031.3750.0
Percentage of AvailableForSaleSecuritiesDebtSecuritiesRedemptions100.0100.00.0

cbz:BusinessAcquisitionEstimatedAnnualizedRevenue us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

cbz:BusinessAcquisitionEstimatedAnnualizedRevenue

cbz:BernstonPorterCompanyPLLC, us-gaap:SubsequentEvent


Business
Period End2021-04-29
Value26
Percentage of BusinessAcquisitionEstimatedAnnualizedRevenue100.0

cbz:BusinessCombinationContingentConsiderationLiabilityOtherAdjustmentsBasedOnProjectedFutureResultsOfAcquisition

cbz:BusinessCombinationContingentConsiderationLiabilityOtherAdjustmentsBasedOnProjectedFutureResultsOfAcquisition


Business
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-30
Value93000.0700000.0100000.0530000.0-700000.0500000.0
Percentage of BusinessCombinationContingentConsiderationLiabilityOtherAdjustmentsBasedOnProjectedFutureResultsOfAcquisition100.0100.0100.0100.0100.0100.0

cbz:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityChangeInNetPresentValueOfContingencies us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByLiabilityClass

cbz:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityChangeInNetPresentValueOfContingencies

us-gaap:FairValueInputsLevel3, cbz:ContingentPurchasePricePayable


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-389000.0-381000.0-235000.0-189000.0-152000.0-191000.0-190000.0-176000.0-147000.0-221000.0-228000.0-228000.0-249000.0-239000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityChangeInNetPresentValueOfContingencies100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cbz:IncreaseDecreaseInBondPremium

cbz:IncreaseDecreaseInBondPremium


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value674000.0-83000.0-107000.0-125000.0-968000.0343000.0850000.0-33000.0-186000.0-171000.0596000.0-171000.0-178000.0130000.093000.0-137000.0-155000.0359000.0405000.0-94000.0-168000.0-37000.024000.089000.078000.0-19000.0-2353000.02198000.0-160000.0-840000.017000.0407000.062000.0-216000.0-41000.0-126000.0
Percentage of IncreaseDecreaseInBondPremium100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cbz:IncreaseDecreaseInFundsHeldForClientInvestingActivities

cbz:IncreaseDecreaseInFundsHeldForClientInvestingActivities


Increase
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value4112000.0-83000.0-125000.0-2303000.0-822000.0-37000.0-764000.0395000.04034000.0-257000.0-616000.0
Percentage of IncreaseDecreaseInFundsHeldForClientInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cbz:IncrementalCommonSharesAttributableToRestrictedStockAwards

cbz:IncrementalCommonSharesAttributableToRestrictedStockAwards


Incremental
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value182000.0257000.03000.0135000.0146000.0296000.022000.0185000.0176000.0274000.0-5000.0268000.0290000.0367000.0-2000.0244000.0319000.0426000.010000.0189000.0229000.0337000.017000.0204000.0224000.0358000.04000.0209000.0258000.0414000.033000.0204000.0172000.0342000.018000.0118000.093000.0310000.012000.0133000.0132000.0
Percentage of IncrementalCommonSharesAttributableToRestrictedStockAwards100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cbz:IncrementalCommonSharesAttributableToStockOptions

cbz:IncrementalCommonSharesAttributableToStockOptions


Incremental
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312011-12-312011-09-302011-06-30
Value676000.0776000.0-23000.0738000.0760000.0993000.021000.01279000.01188000.01311000.0-31000.01654000.01550000.01449000.001433000.01544000.01473000.028000.0868000.0814000.0831000.016000.0905000.0868000.0778000.0-18000.0725000.0769000.0865000.0142000.0227000.056000.025000.0-9000.055000.066000.0
Percentage of IncrementalCommonSharesAttributableToStockOptions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cbz:NetIncreaseDecreaseInClientFundsObligations

cbz:NetIncreaseDecreaseInClientFundsObligations


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value1.32426-43.776.7241238-55.887101123-34.7764.9921654-69.463141054-80.79772-17.30120-87.0173.4711258-73.771-8.5682537-60.772122710-28.94-2.712224.375-32.2492513-29.5983.454-16.344
Percentage of NetIncreaseDecreaseInClientFundsObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cbz:NumberOfCommonSharesIssued

cbz:NumberOfCommonSharesIssued


Number
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312013-03-312012-12-312012-09-302011-12-312011-09-30
Value100000.0000100000.02000.0098000.00044000.056000.00123000.00130000.047000.0180000.00188000.032000.085000.0124000.032000.059000.099000.087000.052000.0-13900.00
Percentage of NumberOfCommonSharesIssued100.00.00.00.0100.0100.00.0100.00.00.0100.0100.00.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

cbz:OperatingLeasePaymentsToRelatedParties

cbz:OperatingLeasePaymentsToRelatedParties


Operating
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value500000.0600000.0500000.0600000.01600000.0600000.0500000.0600000.0500000.01800000.01200000.0900000.0
Percentage of OperatingLeasePaymentsToRelatedParties100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cbz:PaymentOfContingentConsiderationOfAcquisitions

cbz:PaymentOfContingentConsiderationOfAcquisitions


Payment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value6.181.671.6175.0433.5752.6240.6075.1328.7192.9990.117.0451.4093.2230.6884.6161.983.2311.6971.6972.0752.0354.1812.991.4993.3174.4720.880.011.4865.7683.5270.0261.048.572.7810.141.6921.4940.00.00.33
Percentage of PaymentOfContingentConsiderationOfAcquisitions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0

cbz:PerformanceShareUnits

cbz:PerformanceShareUnits


Performance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value922000.01173000.0430000.0604000.0566000.0431000.0424000.0288000.0285000.034000.0
Percentage of PerformanceShareUnits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cbz:ProvisionForDoubtfulAccountsNetOfRecoveries

cbz:ProvisionForDoubtfulAccountsNetOfRecoveries


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value207000.058000.01243000.0-68000.0945000.02289000.0441000.0468000.0452000.01054000.0-32000.0525000.01406000.01766000.0872000.01826000.01705000.0734000.0799000.01086000.01035000.01170000.0
Percentage of ProvisionForDoubtfulAccountsNetOfRecoveries100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cbz:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPercentageOfTargetEarningsPerShare us-gaap:AwardType

cbz:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPercentageOfTargetEarningsPerShare

us-gaap:PerformanceShares


Share
Period End2021-06-302021-03-312020-12-31
Value070.00
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPercentageOfTargetEarningsPerShare0.0100.00.0

cbz:ShareBasedCompensationArrangementsByShareBasedPaymentAwardPerformanceStockOfTotalGrowthInRevenue us-gaap:AwardType

cbz:ShareBasedCompensationArrangementsByShareBasedPaymentAwardPerformanceStockOfTotalGrowthInRevenue

us-gaap:PerformanceShares


Share
Period End2021-06-302021-03-312020-12-31
Value030.00
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardPerformanceStockOfTotalGrowthInRevenue0.0100.00.0

cbz:ShareBasedCompensationArrangementsByShareBasedPaymentAwardPerformanceStockPercentageOfInitialGrant us-gaap:Range, us-gaap:AwardType

cbz:ShareBasedCompensationArrangementsByShareBasedPaymentAwardPerformanceStockPercentageOfInitialGrant

srt:Maximum, us-gaap:PerformanceShares


Share
Period End2021-06-302021-03-31
Value0200.0
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardPerformanceStockPercentageOfInitialGrant0.0100.0

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation


Adjustments
Period End2021-06-302020-06-30
Value1574000.01582000.0
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:TreasuryStock


Adjustments
Period End2021-06-302020-06-30
Value1574000.01582000.0
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationEmployeeStockPurchaseProgramRequisiteServicePeriodRecognition

us-gaap:AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationEmployeeStockPurchaseProgramRequisiteServicePeriodRecognition


Adjustments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value2599000.02855000.02104000.02485000.02257000.02023000.01996000.01859000.01917000.01482000.01508000.01508000.02413000.01437000.01458000.01457000.01415000.01375000.01393000.01490000.01433000.01409000.01410000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationEmployeeStockPurchaseProgramRequisiteServicePeriodRecognition100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationEmployeeStockPurchaseProgramRequisiteServicePeriodRecognition us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value2599000.02855000.02104000.02485000.02257000.02023000.01996000.01859000.01917000.01482000.01508000.01508000.02413000.01437000.01458000.01457000.01416000.01374000.01393000.01490000.01433000.01409000.01410000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationEmployeeStockPurchaseProgramRequisiteServicePeriodRecognition100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.199.9100.0100.0100.0100.0100.0

us-gaap:BusinessAcquisitionsProFormaRevenue

us-gaap:BusinessAcquisitionsProFormaRevenue


Business
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312018-09-302012-09-302012-06-30
Value383.620180.06.10.0-12.214160168
Percentage of BusinessAcquisitionsProFormaRevenue100.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0

us-gaap:BusinessAcquisitionsProFormaRevenue us-gaap:RelatedPartyTransactionsByRelatedParty, us-gaap:SubsequentEventType

cbz:PrinceWoodInsuranceLLC, us-gaap:SubsequentEvent


Business
Period End2020-07-01
Value1.2
Percentage of BusinessAcquisitionsProFormaRevenue0.0

us-gaap:BusinessAcquisitionsProFormaRevenue us-gaap:StatementScenario, us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

srt:ScenarioForecast, cbz:MiddleMarketAdvisoryGroup, us-gaap:SubsequentEvent


Business
Period End2021-01-01
Value3.6
Percentage of BusinessAcquisitionsProFormaRevenue0.0

us-gaap:BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable

us-gaap:BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable


Business
Period End2020-12-312020-03-312019-12-312018-12-312018-09-302016-03-312015-09-302015-06-302015-03-31
Value5200000.0900000.0000300000.01200000.0300000.0500000.0
Percentage of BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable100.0100.00.00.00.0100.0100.0100.0100.0

us-gaap:BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1

us-gaap:BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1


Business
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value93000.0660000.0-549000.075000.0529000.0-684000.01277000.0515000.088000.0-281000.0-673000.0240000.01441000.01609000.0-1477000.0381000.0-1517000.0485000.0-406000.0-222000.0549000.0-1263000.0366000.0-1550000.0-25000.0-1500000.0-2708000.0-572000.0-2024000.0-959000.0-74000.0217000.0
Percentage of BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations

us-gaap:CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-7000.0-6000.0-5000.0-21000.0-29000.0-16000.0-34000.0-185000.0-28000.0-91000.0-22000.0-10000.0-291000.0139000.0121000.0-208000.0-422000.0-118000.0-120000.079000.0-78000.0506000.01407000.0-177000.0787000.0-1027000.01244000.0-995000.0658000.0-106000.0-48216000.03120000.02072000.020000.0-5000.0216000.018000.018000.048000.0-18000.0-373000.0-250000.0-427000.0-405000.0
Percentage of CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxesAndTaxCredits

us-gaap:DeferredIncomeTaxesAndTaxCredits


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value2012000.03348000.01039000.0-2938000.0959000.0170000.06486000.01412000.05186000.0-2288000.01572000.0-796000.02999000.0936000.0460000.0434000.02878000.0-228000.01221000.0-2137000.0422000.02120000.01820000.0-2319000.0-542000.03842000.0-1416000.0-2300000.0
Percentage of DeferredIncomeTaxesAndTaxCredits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet

us-gaap:InterestRateSwap, us-gaap:InterestExpense


Derivative
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value-293000.0-350000.0-34000.0770000.0-98000.0-134000.0-139000.0586000.0-104000.0-87000.0-38000.0-252000.020000.042000.058000.0-728000.0103000.0-110000.0105000.0-342000.0055000.0
Percentage of DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax

us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax


Discontinued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value-6000.0-7000.0-4000.0-19000.0-11000.0-14000.0-17000.0-200000.0-22000.0-96000.0-20000.0-9000.0-15000.041000.0121000.0-206000.0-418000.0-152000.0-121000.0-133000.0-258000.0-30000.0-1097000.0-561000.0-330000.0-335000.060000.0-203000.0-106000.0-219000.0-812000.0964000.01791000.0-3000.0-13000.0-3000.01000.0-4000.025000.0-46000.0-335000.0-239000.0-494000.0-747000.0-991000.0
Percentage of DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ExcessTaxBenefitFromShareBasedCompensationOperatingActivities

us-gaap:ExcessTaxBenefitFromShareBasedCompensationOperatingActivities


Excess
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302011-12-312011-09-302010-12-312010-09-30
Value1189000.02179000.0720000.0247000.0926000.0501000.02774000.0524000.0802000.0673000.0953000.0206000.02034000.0644000.0249000.0186000.0571000.0102000.0388000.0117000.0395000.048000.034000.087000.0300000.082000.028000.00-26000.00-23000.012000.0
Percentage of ExcessTaxBenefitFromShareBasedCompensationOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByLiabilityClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings

us-gaap:FairValueInputsLevel3, cbz:ContingentPurchasePricePayable


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value296000.0-279000.0784000.0115000.0-378000.0875000.0-1087000.0-339000.059000.0502000.0901000.0-12000.0-1192000.0-1370000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByLiabilityClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases

us-gaap:FairValueInputsLevel3, cbz:ContingentPurchasePricePayable


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value181.6222211-1.2854.670.08.3440.01.8061.0210.04.0418.32
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases100.0100.0100.0100.0100.0100.00.0100.00.0100.0100.00.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByLiabilityClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements

us-gaap:FairValueInputsLevel3, cbz:ContingentPurchasePricePayable


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value6.6382.4431.8324.9954.4653.3941.0574.9959.6313.6850.5366.8723.5782.879
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnSaleOfBusiness us-gaap:StatementBusinessSegments

us-gaap:GainLossOnSaleOfBusiness

cbz:BenefitsAndInsuranceServices


Gain
Period End2020-09-302020-06-302020-03-31
Value-100000.0100000.0100000.0
Percentage of GainLossOnSaleOfBusiness100.0100.0100.0

us-gaap:GainLossRelatedToLitigationSettlement

us-gaap:GainLossRelatedToLitigationSettlement


Gain
Period End2021-06-30
Value-30.468
Percentage of GainLossRelatedToLitigationSettlement100.0

us-gaap:GainLossRelatedToLitigationSettlement us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Gain
Period End2021-06-30
Value-30.468
Percentage of GainLossRelatedToLitigationSettlement100.0

us-gaap:GainLossRelatedToLitigationSettlement us-gaap:LitigationCase

cbz:UniversityOfPittsburghMedicalCenter


Gain
Period End2021-06-24
Value30
Percentage of GainLossRelatedToLitigationSettlement0.0

us-gaap:GoodwillAcquiredDuringPeriod

us-gaap:GoodwillAcquiredDuringPeriod


Goodwill
Period End2021-03-312020-03-312014-03-312013-03-312012-03-31
Value1.511200.2175.597
Percentage of GoodwillAcquiredDuringPeriod100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-11.38513-9.89-7.3175.713-9.6040.399-5.67714-9.032-0.787-5.16815-14.583.747-9.07517-8.3692.484-5.7513-11.2422.037-6.37111-5.9490.02-7.1841211-19.285-4.67212-3.481-1.525-4.3714-8.639-3.757-0.46611-5.425-0.863
Percentage of IncreaseDecreaseInAccruedIncomeTaxesPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-31
Value22-29.755241410-30.2015.067128.275-29.9788.9151211-15.2626.7692.239.202-18.85.6716.4418.894-15.513.0016.3956.304-16.0498.6797.787-15.755
Percentage of IncreaseDecreaseInEmployeeRelatedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherOperatingAssets

us-gaap:IncreaseDecreaseInOtherOperatingAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value100.9970.351-0.929-2.1311.237-0.412-0.1331.416-1.778-0.13-1.4812.3842.571-0.887-2.5561.351-1.088-0.7273.3892.1170.8332.678-1.421-1.1461.1580.9070.970.0271.1232.79-1.0615.218-3.8346.993-0.508-1.1180.2282.754-1.832-2.0190.6492.298-1.655
Percentage of IncreaseDecreaseInOtherOperatingAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-31
Value410.172-3.1558.8085.8392.175-2.8331.622-0.559-0.0432.994-0.5170.749-3.3661.902-0.3833.756-1.7670.7873.0151.0361.127-2.2590.026-1.3310.5070.744-3.553.111
Percentage of IncreaseDecreaseInOtherOperatingLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToContingentlyIssuableShares

us-gaap:IncrementalCommonSharesAttributableToContingentlyIssuableShares


Incremental
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value37000.037000.0-10000.084000.068000.085000.0-10000.084000.041000.043000.058000.024000.03000.037000.08000.022000.0-80000.0141000.05000.05000.0-5000.034000.0118000.095000.026000.0103000.0134000.0100000.0-16000.068000.062000.052000.0-32000.096000.0111000.0118000.0-176000.0207000.0145000.0
Percentage of IncrementalCommonSharesAttributableToContingentlyIssuableShares100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LitigationSettlementAmountAwardedToOtherParty us-gaap:LitigationCase

us-gaap:LitigationSettlementAmountAwardedToOtherParty

cbz:UniversityOfPittsburghMedicalCenter


Litigation
Period End2021-06-24
Value41
Percentage of LitigationSettlementAmountAwardedToOtherParty100.0

us-gaap:LossContingencyDamagesSoughtValue us-gaap:LitigationCase

us-gaap:LossContingencyDamagesSoughtValue

cbz:BaldinoGroup


Loss
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312014-12-31
Value0.0160.00.00.0160.00.00.0160.00.00.0160.00.00.0160.0
Percentage of LossContingencyDamagesSoughtValue0.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.0

us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinuingOperations

us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinuingOperations


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value81-14.821652674-18.631483044-24.662412261-20.639381630-13.145361239-17.668202127-23.288191825-21.08536-6.40823-12.148161136-11.303201427-3.51216
Percentage of NetCashProvidedByUsedInOperatingActivitiesContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeaseCost


Operating
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value8.7758.3298.8558.8229.4119.4069.2169.242
Percentage of OperatingLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeasePayments

us-gaap:OperatingLeasePayments


Operating
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value8.8517.7739.5399.2639.6739.5359.1999.26
Percentage of OperatingLeasePayments100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-55000.0-103000.0-41000.0-46000.0632000.0-587000.046000.072000.0312000.0510000.0132000.0-65000.04000.0-330000.0
Percentage of OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-4000.0-4000.0-4000.0-4000.0-2000.0-12000.0-4000.0-7000.0-4000.0-2000.0-9000.0-3000.0-6000.0-6000.0
Percentage of OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value-20000.0-39000.0-17000.0228000.0-210000.027000.0116000.0189000.0-24000.01000.0-122000.07000.041000.059000.0-63000.075000.092000.021000.0-76000.071000.0-63000.028000.0-11000.031000.0-144000.026000.0
Percentage of OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value117000.0961000.0271000.0-136000.0-1007000.0-653000.0129000.0-194000.0-730000.0-427000.0-766000.0123000.0176000.0450000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent us-gaap:DerivativeInstrumentRisk

us-gaap:InterestRateSwap


Other
Period End2021-06-302021-03-312020-06-302020-03-31
Value117000.0961000.0-1007000.0-653000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent us-gaap:DerivativeInstrumentRisk, us-gaap:IncomeStatementLocation

us-gaap:InterestRateSwap, us-gaap:InterestExpense


Other
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-136000.0-1007000.0-653000.0129000.0-194000.0-730000.0-427000.0-766000.0123000.0176000.0450000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value36000.0310000.0-1073000.045000.0324000.0-210000.039000.0-61000.0-225000.0-132000.0-238000.038000.054000.0138000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax us-gaap:DerivativeInstrumentRisk

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax

us-gaap:InterestRateSwap


Other
Period End2021-06-302021-03-312020-06-302020-03-31
Value-280000.0-285000.0-350000.0-34000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value58000.0854000.0226000.0-186000.0-377000.0-1252000.0171000.0-129000.0-422000.081000.0-643000.055000.0174000.0114000.065000.0-155000.092000.0-24000.053000.0-84000.080000.078000.0-258000.0-59000.0401000.0
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value58000.0854000.0226000.0-186000.0-377000.0-1252000.0171000.0-129000.0-422000.081000.0-643000.055000.0174000.0114000.0
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherOperatingActivitiesCashFlowStatement

us-gaap:OtherOperatingActivitiesCashFlowStatement


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-574000.096000.0175000.0324000.0-204000.0190000.0-318000.01323000.0370000.0-298000.02389000.0851000.0-1596000.0-1244000.04451000.0-2158000.0-1310000.0195000.0
Percentage of OtherOperatingActivitiesCashFlowStatement100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForPreviousAcquisition

us-gaap:PaymentsForPreviousAcquisition


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value6.1221.51.65.03.4852.40.65.08.62.70.06.91.22.90.64.41.92.91.41.62.12.04.23.01.53.32.32.60.01.56.0
Percentage of PaymentsForPreviousAcquisition100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsForProceedsFromOtherInvestingActivities


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-258000.0-214000.0-1553000.00-656000.0-351000.0-855000.0-10000.0-318000.0-7000.0-1966000.0-2000.0314000.0-662000.0-22000.01595000.0-709000.0-496000.0-414000.096000.0-3000.0-39000.0-44000.045000.0-13000.00-10000.0-13000.0-12000.0-12000.01000.09000.05000.0
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireBusinessesGross

us-gaap:PaymentsToAcquireBusinessesGross


Payments
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312018-09-302015-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value1.937260.09.40.04.50.00.20.01.56.40.02.80.9135.5
Percentage of PaymentsToAcquireBusinessesGross100.0100.0100.00.0100.00.0100.00.0100.00.0100.0100.00.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireBusinessesGross us-gaap:BusinessAcquisition

cbz:AcquisitionOfClientLists


Payments
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312016-12-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312013-12-312013-09-302012-02-01
Value0.20.00.00.10.50.00.40.60.00.20.23.00.10.00.02.5
Percentage of PaymentsToAcquireBusinessesGross10.50.00.00.05.30.00.00.00.00.0100.00.00.00.00.00.0

cbz:PreviousClientListsPurchases


Payments
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-09-30
Value0.1-0.10.20.00.30.20.30.10.3-0.30.50.6
Percentage of PaymentsToAcquireBusinessesGross5.3-0.30.80.03.20.00.00.00.0-6.70.00.0

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value412.01237250.047.8480.004100.0021.2914.4680.8728.172150.6870.845224.3444.6454.234312.0435.0762.3761.215.974138.2499.562154.7331.021665.5332.094191.788140.00310146.372
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromLongTermLinesOfCredit

us-gaap:ProceedsFromLongTermLinesOfCredit


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value19623541110603791512301231411261241642741081171681396177132145136839098961096912931481001321659013316089117162115129164
Percentage of ProceedsFromLongTermLinesOfCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities


Proceeds
Period End2021-06-302021-03-31
Value0.8151.6
Percentage of ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities100.0100.0

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-30
Value-57000.0-57000.0-58000.0-169000.0-113000.0-113000.0-272000.0-112000.0-111000.0-111000.0-460000.0-110000.0-1263000.0-58000.0131000.0-103000.0-103000.0-103000.0-442000.02000.0-151000.00-31000.0-118000.0-43000.0
Percentage of ProceedsFromPaymentsForOtherFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0

us-gaap:ProceedsFromSaleMaturityAndCollectionsOfInvestments

us-gaap:ProceedsFromSaleMaturityAndCollectionsOfInvestments


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-30
Value4.8753.094.527.6518.198176.27.2023.6916.8653.5371.4283.9283.3452.292.120.953.4252.6462.3851.173.5771.7992.9152.2463.7040.5
Percentage of ProceedsFromSaleMaturityAndCollectionsOfInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt

us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt


Proceeds
Period End2021-06-302021-03-31
Value4.061.49
Percentage of ProceedsFromSaleOfAvailableForSaleSecuritiesDebt100.0100.0

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ProceedsFromStockOptionsExercised


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302011-12-312011-09-302010-12-312010-09-30
Value1.044.4081.7671.4922.2141.0135.7531.8121.6431.40.2151.6512.1542.2711.7810.5783.1962.4532.8121.7292.7330.7964.1641.8952.5392.133.5080.8041.0775.967130.5410.00.00.0380.038
Percentage of ProceedsFromStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0

us-gaap:ProvisionForDoubtfulAccounts

us-gaap:ProvisionForDoubtfulAccounts


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value2193000.0390000.02665000.01676000.02142000.02840000.0863000.01086000.01035000.01170000.01033000.01826000.01305000.01494000.01490000.01402000.01344000.01248000.0908000.01032000.01296000.01194000.01637000.01171000.01582000.0739000.02458000.01946000.0832000.01323000.01024000.01329000.0
Percentage of ProvisionForDoubtfulAccounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProvisionForDoubtfulAccounts us-gaap:LiabilityForCatastropheClaimsByCatastrophicEvent

cbz:COVIDNineteenPandemic


Provision
Period End2020-09-302020-06-302020-03-31
Value0200000.02000000.0
Percentage of ProvisionForDoubtfulAccounts0.09.370.4

us-gaap:RepaymentsOfLongTermLinesOfCredit

us-gaap:RepaymentsOfLongTermLinesOfCredit


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value1941814312032310220622914695157137198238136122170118899313111781858459978279862221211911810293162127103106146101129160
Percentage of RepaymentsOfLongTermLinesOfCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStockExpense

us-gaap:RestrictedStockExpense


Restricted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value1445000.01381000.01199000.01266000.01324000.01171000.01147000.01146000.01153000.0929000.0977000.0978000.01383000.0919000.0931000.0930000.0891000.0849000.0857000.0916000.0869000.0830000.0827000.0825000.0755000.0781000.0773000.01184000.0932000.0741000.0721000.0711000.0758000.0717000.0754000.0754000.0676000.0723000.0
Percentage of RestrictedStockExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod

cbz:RestrictedStockUnitsAndAwards


Share
Period End2020-12-312020-09-30
Value9000.00
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod100.00.0

us-gaap:PerformanceShares


Share
Period End2020-12-312020-09-30
Value17000.00
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod188.90.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresIntrinsicValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresIntrinsicValue

us-gaap:PerformanceShares


Share
Period End2020-12-31
Value0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresIntrinsicValue0.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue

cbz:RestrictedStockUnitsAndAwards


Share
Period End2020-12-31
Value-1.4
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodIntrinsicValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodIntrinsicValue

us-gaap:PerformanceShares


Share
Period End2020-12-31
Value0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodIntrinsicValue0.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

cbz:RestrictedStockUnitsAndAwards


Share
Period End2021-06-302021-03-312020-12-31
Value1.0627.560
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue100.0100.00.0

us-gaap:PerformanceShares


Share
Period End2021-06-302021-03-31
Value027.56
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod

cbz:RestrictedStockUnitsAndAwards


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value147000.099000.000191000.085000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod100.0100.00.00.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue

cbz:RestrictedStockUnitsAndAwards


Share
Period End2021-06-302021-03-312020-12-31
Value-2.3822.380
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue100.0100.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate


Share
Period End2020-12-31
Value0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate0.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate


Share
Period End2020-12-31
Value0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate0.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross


Share
Period End2020-12-31
Value0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross0.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice


Share
Period End2021-06-302021-03-312020-12-31
Value-0.0511.1-0.45
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice


Share
Period End2020-12-31
Value0
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice0.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice


Share
Period End2020-12-31
Value0
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice0.0

us-gaap:SharesPaidForTaxWithholdingForShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:SharesPaidForTaxWithholdingForShareBasedCompensation

us-gaap:TreasuryStock


Shares
Period End2021-06-302020-06-30
Value45000.070000.0
Percentage of SharesPaidForTaxWithholdingForShareBasedCompensation100.0100.0

us-gaap:StockIssuedDuringPeriodSharesAcquisitions us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesAcquisitions

us-gaap:CommonStock


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value137000.038000.0208000.0108000.044000.069000.019000.097000.051000.047000.024000.00169000.0
Percentage of StockIssuedDuringPeriodSharesAcquisitions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures

us-gaap:CommonStock


Stock
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-30
Value-15000.0040000.00055000.000216000.0
Percentage of StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures100.00.0100.00.00.0100.00.00.0100.0

us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensation

us-gaap:CommonStock


Stock
Period End2021-06-302021-03-312020-06-30
Value34000.046000.040000.0
Percentage of StockIssuedDuringPeriodSharesShareBasedCompensation100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value96000.0397000.0192000.0115000.0211000.0116000.0652000.0180000.0189000.0189000.024000.0224000.0277000.0339000.0287000.084000.0470000.0335000.0378000.0239000.0395000.0115000.0613000.0
Percentage of StockIssuedDuringPeriodSharesStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised us-gaap:StatementEquityComponents

us-gaap:CommonStock


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value96000.0397000.0192000.0115000.0211000.0116000.0652000.0180000.0189000.0189000.024000.0224000.0277000.0339000.0287000.084000.0470000.0335000.0379000.0239000.0395000.0115000.0613000.0
Percentage of StockIssuedDuringPeriodSharesStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.3100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueAcquisitions

us-gaap:StockIssuedDuringPeriodValueAcquisitions


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value4.5780.9795.4062.6580.981.8770.5121.9821.0170.950.5350.0013.2141.6920.0013.8550.6332.4090.03.5260.2891.738
Percentage of StockIssuedDuringPeriodValueAcquisitions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueAcquisitions us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value4.5760.9795.4042.6570.9791.8770.5111.9811.0170.9490.5350.03.2131.6910.0013.8520.6332.4070.03.5220.2891.736
Percentage of StockIssuedDuringPeriodValueAcquisitions100.0100.0100.0100.099.9100.099.899.9100.099.9100.00.0100.099.9100.099.9100.099.90.099.9100.099.9

us-gaap:CommonStock


Stock
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302016-12-312016-09-302015-12-31
Value0.0020.0020.0010.0010.0010.0010.00.0010.00.0010.0010.0010.00.0020.00.002
Percentage of StockIssuedDuringPeriodValueAcquisitions0.00.00.00.10.20.10.00.10.0100.00.00.10.00.10.00.1

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-31
Value0-1000.0
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation0.0100.0

us-gaap:CommonStock


Stock
Period End2021-06-302021-03-31
Value01000.0
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation0.0-100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value1.044.4081.7671.4922.2141.0135.7531.8121.6431.40.2151.6512.1542.2711.7810.5783.1962.4532.8121.7292.7330.7964.164
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value1.0394.4041.7661.492.2121.0125.7471.811.6411.3980.2151.6482.1532.2671.7780.5773.1912.452.8071.7282.7290.7954.158
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised99.999.999.999.999.999.999.999.999.999.9100.099.8100.099.899.899.899.899.999.899.999.999.999.9

us-gaap:CommonStock


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value0.0010.0040.0010.0020.0020.0010.0060.0020.0020.0020.00.0030.0010.0040.0030.0010.0050.0030.0050.0010.0040.0010.006
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised0.10.10.10.10.10.10.10.10.10.10.00.20.00.20.20.20.20.10.20.10.10.10.1

us-gaap:StockOptionPlanExpense

us-gaap:StockOptionPlanExpense


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value232000.0301000.0475000.0615000.0367000.0421000.0425000.0425000.0479000.0519000.0531000.0531000.01030000.0518000.0527000.0527000.0524000.0525000.0536000.0574000.0564000.0579000.0583000.0583000.0534000.0841000.0620000.0641000.0666000.0649000.0660000.0639000.0730000.0719000.0757000.0754000.0687000.0783000.0
Percentage of StockOptionPlanExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockRepurchasedDuringPeriodShares us-gaap:SubsequentEventType

us-gaap:StockRepurchasedDuringPeriodShares

us-gaap:SubsequentEvent


Stock
Period End2021-02-162015-07-31
Value600000.0630000.0
Percentage of StockRepurchasedDuringPeriodShares100.0100.0

us-gaap:StockRepurchasedDuringPeriodValue us-gaap:SubsequentEventType

us-gaap:StockRepurchasedDuringPeriodValue

us-gaap:SubsequentEvent


Stock
Period End2021-02-162015-07-31
Value166.1
Percentage of StockRepurchasedDuringPeriodValue100.0100.0

us-gaap:TreasuryStockSharesAcquired us-gaap:StatementEquityComponents

us-gaap:TreasuryStockSharesAcquired

us-gaap:TreasuryStock


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value919000.01164000.0-999000.0-165000.0-70000.0-1174000.0-161000.0-48000.0-516000.0-580000.0-469000.0-160000.0-188000.0-31000.0
Percentage of TreasuryStockSharesAcquired100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStockSharesAcquired us-gaap:SubsequentEventType

us-gaap:SubsequentEvent


Treasury
Period End2021-04-27
Value300000.0
Percentage of TreasuryStockSharesAcquired0.0

us-gaap:TreasuryStockValueAcquiredCostMethod

us-gaap:TreasuryStockValueAcquiredCostMethod


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value3034243.7421.582294.3371.09410119.3633.7123.8510.5583.4042.2711.1870.1291.6916.1370.0
Percentage of TreasuryStockValueAcquiredCostMethod100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:TreasuryStockValueAcquiredCostMethod us-gaap:StatementEquityComponents

us-gaap:TreasuryStock


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value3034243.7421.582294.3371.09410119.3633.7123.8510.5583.4042.2711.1870.1291.6916.1370.0
Percentage of TreasuryStockValueAcquiredCostMethod100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:TreasuryStockValueAcquiredCostMethod us-gaap:SubsequentEventType

us-gaap:SubsequentEvent


Treasury
Period End2021-04-27
Value9.0
Percentage of TreasuryStockValueAcquiredCostMethod0.0

cbz:AccumulatedOtherComprehensiveIncomeUnrealizedHoldingGainLossOnDerivativesArisingDuringPeriodTax

cbz:AccumulatedOtherComprehensiveIncomeUnrealizedHoldingGainLossOnDerivativesArisingDuringPeriodTax


Accumulated
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value618000.0-320000.0213000.0419000.0196000.0-91000.047000.0167000.0302000.0
Percentage of AccumulatedOtherComprehensiveIncomeUnrealizedHoldingGainLossOnDerivativesArisingDuringPeriodTax100.0100.0100.0100.0100.0100.0100.0100.0100.0

cbz:AccumulatedOtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax

cbz:AccumulatedOtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax


Accumulated
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value128000.0220000.0-183000.0157000.0129000.0108000.0-37000.037000.0134000.0
Percentage of AccumulatedOtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax100.0100.0100.0100.0100.0100.0100.0100.0100.0

cbz:BusinessCombinationAggregatedGoodwillAndIntangibleAssetsAcquired us-gaap:StatementBusinessSegments

cbz:BusinessCombinationAggregatedGoodwillAndIntangibleAssetsAcquired

cbz:BenefitsAndInsuranceServices


Business
Period End2021-06-302020-06-30
Value3.13114
Percentage of BusinessCombinationAggregatedGoodwillAndIntangibleAssetsAcquired100.0100.0

cbz:FinancialServices


Business
Period End2021-06-30
Value58
Percentage of BusinessCombinationAggregatedGoodwillAndIntangibleAssetsAcquired1861.4

cbz:BusinessCombinationContingentConsiderationLiabilityFairValue

cbz:BusinessCombinationContingentConsiderationLiabilityFairValue


Business
Period End2021-03-312020-12-312020-09-302020-03-312019-12-312019-09-30
Value1.638164.71010
Percentage of BusinessCombinationContingentConsiderationLiabilityFairValue100.0100.0100.0100.0100.0100.0

cbz:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFundsHeldForClients

cbz:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFundsHeldForClients


Business
Period End2020-12-312019-12-312019-09-30
Value1700000.06900000.06900000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFundsHeldForClients100.0100.0100.0

cbz:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFundsHeldForClients us-gaap:BusinessAcquisition

cbz:SeriesOfBusinessAcquisitionInTwoThousandNineteenAndTwoThousandTwenty


Business
Period End2020-12-312020-09-302019-12-312019-09-30
Value1716000.01716000.06878000.06878000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFundsHeldForClients100.90.099.799.7

cbz:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseLiabilityCurrent us-gaap:BusinessAcquisition

cbz:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseLiabilityCurrent

cbz:SeriesOfBusinessAcquisitionInTwoThousandNineteenAndTwoThousandTwenty


Business
Period End2020-12-312020-09-302019-12-312019-09-30
Value793000.0408000.01013000.01013000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseLiabilityCurrent100.0100.0100.0100.0

cbz:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseLiabilityNoncurrent us-gaap:BusinessAcquisition

cbz:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseLiabilityNoncurrent

cbz:SeriesOfBusinessAcquisitionInTwoThousandNineteenAndTwoThousandTwenty


Business
Period End2020-12-312020-09-302019-12-312019-09-30
Value1953000.01019000.01776000.01776000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0

cbz:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightOfUseAssetNet us-gaap:BusinessAcquisition

cbz:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightOfUseAssetNet

cbz:SeriesOfBusinessAcquisitionInTwoThousandNineteenAndTwoThousandTwenty


Business
Period End2020-12-312020-09-302019-12-312019-09-30
Value2746000.01427000.02789000.02789000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightOfUseAssetNet100.0100.0100.0100.0

cbz:CashEquivalentsIncludedInFundsHeldForClients

cbz:CashEquivalentsIncludedInFundsHeldForClients


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
Value109118141939294116606476102677591148168
Percentage of CashEquivalentsIncludedInFundsHeldForClients100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cbz:ClientFundObligations

cbz:ClientFundObligations


Client
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value13914016612312914217912312713816212713214820313414815921313320515017110911312518311010112616410311614315486831051097710387
Percentage of ClientFundObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cbz:ContingentPurchasePriceLiabilitiesAtFairValue us-gaap:FairValueByFairValueHierarchyLevel

cbz:ContingentPurchasePriceLiabilitiesAtFairValue

us-gaap:FairValueInputsLevel3


Contingent
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value66545434273232312837393946443739433233333222242430323333323225303429-30.012262525
Percentage of ContingentPurchasePriceLiabilitiesAtFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cbz:CorporateAndMunicipalBondsNetParValue

cbz:CorporateAndMunicipalBondsNetParValue


Corporate
Period End2020-09-302020-06-302020-03-312019-12-312019-03-312018-12-312017-12-31
Value29374558585549
Percentage of CorporateAndMunicipalBondsNetParValue100.0100.0100.0100.0100.0100.0100.0

cbz:CurrentAssetsBeforeFundsHeldForClients

cbz:CurrentAssetsBeforeFundsHeldForClients


Current
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value369330268302341533276324330319262297314315245269279273228249252241200226239240196224226233186210318234195207209222182198196179
Percentage of CurrentAssetsBeforeFundsHeldForClients100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cbz:CurrentLiabilitiesBeforeClientFundObligations

cbz:CurrentLiabilitiesBeforeClientFundObligations


Current
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value2841932111742031671861861971721591541731391301281411181251181241009910911610711111612410010314713011511511811610611610091141
Percentage of CurrentLiabilitiesBeforeClientFundObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cbz:DeferredTaxAssetsLeaseCosts

cbz:DeferredTaxAssetsLeaseCosts


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value6291000.04889000.04099000.03611000.02772000.03318000.03959000.04398000.03703000.03667000.0
Percentage of DeferredTaxAssetsLeaseCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cbz:DeferredTaxAssetsTaxCreditCarryForwardsState

cbz:DeferredTaxAssetsTaxCreditCarryForwardsState


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value1291000.01322000.01353000.01385000.01489000.01393000.01496000.0
Percentage of DeferredTaxAssetsTaxCreditCarryForwardsState100.0100.0100.0100.0100.0100.0100.0

cbz:DeferredTaxAssetsTaxCreditCarryForwardsStateAndLocal

cbz:DeferredTaxAssetsTaxCreditCarryForwardsStateAndLocal


Deferred
Period End2020-12-31
Value1300000.0
Percentage of DeferredTaxAssetsTaxCreditCarryForwardsStateAndLocal100.0

cbz:DeferredTaxLiabilitiesIntangibleAssets

cbz:DeferredTaxLiabilitiesIntangibleAssets


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value524000.0846000.01184000.01513000.02717000.03273000.04016000.03915000.06425000.0
Percentage of DeferredTaxLiabilitiesIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0

cbz:DefinedBenefitPlanFairValueOfPlanLiabilities us-gaap:FairValueByFairValueHierarchyLevel

cbz:DefinedBenefitPlanFairValueOfPlanLiabilities

us-gaap:FairValueInputsLevel1


Defined
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value1131079210610010095849389-86.581-85.589-69.912
Percentage of DefinedBenefitPlanFairValueOfPlanLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cbz:IntangibleAssetsIncludingGoodwillGross

cbz:IntangibleAssetsIncludingGoodwillGross


Intangible
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value901786787757757755750750737714712711670667654647605602594592592581572562551525527528615619538528515
Percentage of IntangibleAssetsIncludingGoodwillGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cbz:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour

cbz:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour


Lessee
Period End2020-09-302019-12-31
Value6967
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour100.0100.0

cbz:LicenseBondsOutstandingAmount

cbz:LicenseBondsOutstandingAmount


License
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value2300000.02300000.02200000.02300000.02300000.02300000.02300000.02500000.02500000.02900000.02900000.02900000.02900000.02500000.02500000.02500000.02500000.02500000.02300000.02400000.02400000.02400000.02300000.02000000.01800000.01900000.01900000.01700000.01800000.02300000.02400000.02400000.02000000.02700000.02700000.02900000.02800000.01600000.0
Percentage of LicenseBondsOutstandingAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cbz:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExercisable

cbz:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExercisable


Share
Period End2020-12-31
Value1375000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExercisable100.0

cbz:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExercisableIntrinsicValue

cbz:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExercisableIntrinsicValue


Share
Period End2020-12-31
Value17
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExercisableIntrinsicValue100.0

cbz:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsVestedAndExercisedWeightedAverageExercisePrice

cbz:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsVestedAndExercisedWeightedAverageExercisePrice


Share
Period End2020-12-31
Value14.0
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsVestedAndExercisedWeightedAverageExercisePrice100.0

us-gaap:AccountsReceivableGrossCurrent

us-gaap:AccountsReceivableGrossCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value307283231263283280236274285277220248261276202227231234188208206210166188189200154190189195153172173205166177174146
Percentage of AccountsReceivableGrossCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccruedIncomeTaxesNoncurrent

us-gaap:AccruedIncomeTaxesNoncurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value1396000.01339000.01775000.03308000.03245000.03185000.03053000.03681000.03603000.03524000.03402000.03596000.04574000.04555000.04454000.04628000.04612000.04539000.04426000.04331000.04259000.04190000.04084000.04487000.04492000.04276000.04166000.03813000.04865000.05123000.06154000.06097000.04280000.04169000.04009000.04166000.04667000.04584000.04441000.04780000.05527000.05285000.0
Percentage of AccruedIncomeTaxesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax


Accumulated
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value351000.0393000.0-495000.0-236000.0-194000.0-172000.0-58000.059000.0201000.020000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax


Accumulated
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value-720000.0-698000.0-681000.0-658000.0-643000.0-612000.0-558000.0-499000.0-439000.0-377000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent


Allowance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value141314141617141313121314151513131213131313121212111111111011101111121110109.22
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AociLossCashFlowHedgeCumulativeGainLossAfterTax

us-gaap:AociLossCashFlowHedgeCumulativeGainLossAfterTax


Aoci
Period End2020-12-312019-12-31
Value-1900000.0-375000.0
Percentage of AociLossCashFlowHedgeCumulativeGainLossAfterTax100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis


Available
Period End2021-06-302021-03-312020-12-312019-12-31
Value24212458
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis100.0100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesDebtSecurities

us-gaap:AvailableForSaleSecuritiesDebtSecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312017-12-31
Value26222530386060605651
Percentage of AvailableForSaleSecuritiesDebtSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel1


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-31
Value262225303860606056
Percentage of AvailableForSaleSecuritiesDebtSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BilledContractReceivables

us-gaap:BilledContractReceivables


Billed
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value213177167173197177176175200167159155181173139139153140132129136128118120127107
Percentage of BilledContractReceivables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh

us-gaap:BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh


Business
Period End2021-03-312020-06-302020-03-312019-12-312018-12-31
Value1.76.26.21115
Percentage of BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh us-gaap:BusinessAcquisition

us-gaap:SeriesOfIndividuallyImmaterialBusinessAcquisitions


Business
Period End2021-06-302020-06-30
Value216.202
Percentage of BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh0.0100.0

us-gaap:BusinessCombinationContingentConsiderationLiability

us-gaap:BusinessCombinationContingentConsiderationLiability


Business
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312018-09-302018-06-302017-09-302017-06-302016-09-302016-06-302015-09-302015-06-302015-03-312013-12-312012-12-31
Value1.638164.84.81111131212171717154.24.24.22.22.2
Percentage of BusinessCombinationContingentConsiderationLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationContingentConsiderationLiability us-gaap:BusinessAcquisition

cbz:AcquisitionOfClientLists


Business
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312017-12-312017-06-302016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-312013-09-302013-06-30
Value0.10.40.30.30.30.20.20.21.40.71.50.70.70.70.10.20.30.20.2
Percentage of BusinessCombinationContingentConsiderationLiability6.21.01.86.26.21.81.81.50.04.00.03.94.60.00.00.013.60.00.0

us-gaap:SeriesOfIndividuallyImmaterialBusinessAcquisitions


Business
Period End2021-06-302020-06-30
Value204.67
Percentage of BusinessCombinationContingentConsiderationLiability0.097.3

us-gaap:BusinessCombinationContingentConsiderationLiabilityCurrent

us-gaap:BusinessCombinationContingentConsiderationLiabilityCurrent


Business
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value222220151517161518212221271615151814161616141215171616181312
Percentage of BusinessCombinationContingentConsiderationLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationContingentConsiderationLiabilityCurrent us-gaap:BalanceSheetLocation

cbz:ContingentPurchasePriceLiabilityCurrent


Business
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312018-09-30
Value0.6105.02.02.02.82.93.93.4
Percentage of BusinessCombinationContingentConsiderationLiabilityCurrent2.653.732.412.811.417.318.317.316.1

us-gaap:BusinessCombinationContingentConsiderationLiabilityNoncurrent

us-gaap:BusinessCombinationContingentConsiderationLiabilityNoncurrent


Business
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value43313418111515169.1811517181928222424181717168.292119.56121516151812
Percentage of BusinessCombinationContingentConsiderationLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationContingentConsiderationLiabilityNoncurrent us-gaap:BalanceSheetLocation

cbz:ContingentPurchasePriceLiabilityNonCurrent


Business
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312018-09-30
Value1.027112.72.77.57.49.59.0
Percentage of BusinessCombinationContingentConsiderationLiabilityNoncurrent3.279.561.022.917.847.246.255.348.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents


Business
Period End2020-12-312019-12-312019-09-302018-12-31
Value500000.0800000.0800000.0300000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents100.0100.0100.0100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents us-gaap:BusinessAcquisition

cbz:SeriesOfBusinessAcquisitionInTwoThousandNineteenAndTwoThousandTwenty


Business
Period End2020-12-312020-09-302019-12-312019-09-30
Value536000.0233000.0826000.0826000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents107.20.0103.2103.2

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther

cbz:SeriesOfBusinessAcquisitionInTwoThousandNineteenAndTwoThousandTwenty


Business
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value250000.053000.053000.099000.05000.05000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables

cbz:SeriesOfBusinessAcquisitionInTwoThousandNineteenAndTwoThousandTwenty


Business
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value5381000.03314000.0871000.0871000.01843000.01843000.0550000.0550000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther

cbz:SeriesOfBusinessAcquisitionInTwoThousandNineteenAndTwoThousandTwenty


Business
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value3460000.01856000.0779000.0779000.02245000.02245000.0288000.0288000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFinancialLiabilities us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFinancialLiabilities

cbz:SeriesOfBusinessAcquisitionInTwoThousandNineteenAndTwoThousandTwenty


Business
Period End2020-12-312020-09-302019-12-312019-09-30
Value1716000.01716000.06878000.06878000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFinancialLiabilities100.0100.0100.0100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill

cbz:SeriesOfBusinessAcquisitionInTwoThousandNineteenAndTwoThousandTwenty


Business
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value204.7883.6293.6297.7257.7250.6540.654
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SeriesOfIndividuallyImmaterialBusinessAcquisitions


Business
Period End2021-06-302020-06-30
Value223.629
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill0.0100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles us-gaap:FiniteLivedIntangibleAssetsByMajorClass, us-gaap:StatementBusinessSegments

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles

us-gaap:CustomerLists, cbz:BenefitsAndInsuranceServices


Business
Period End2021-06-302020-06-30
Value1.293.43
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles100.0100.0

us-gaap:CustomerLists, cbz:FinancialServices


Business
Period End2021-06-30
Value20
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles1567.4

us-gaap:OtherIntangibleAssets, cbz:BenefitsAndInsuranceServices


Business
Period End2021-06-302020-06-30
Value0.0460.199
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles3.65.8

us-gaap:OtherIntangibleAssets, cbz:FinancialServices


Business
Period End2021-06-30
Value0.837
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles64.9

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet

cbz:SeriesOfBusinessAcquisitionInTwoThousandNineteenAndTwoThousandTwenty


Business
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value236.7293.8993.8998.2488.2480.9210.921
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets

cbz:SeriesOfBusinessAcquisitionInTwoThousandNineteenAndTwoThousandTwenty


Business
Period End2020-12-312019-12-31
Value431000.099000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets100.0100.0

us-gaap:SeriesOfIndividuallyImmaterialBusinessAcquisitions


Business
Period End2021-06-302020-06-30
Value5878000.0270000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets0.00.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet

cbz:SeriesOfBusinessAcquisitionInTwoThousandNineteenAndTwoThousandTwenty


Business
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value12155151532323.0863.086
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SeriesOfIndividuallyImmaterialBusinessAcquisitions


Business
Period End2021-06-302020-06-30
Value6715
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet0.0100.0

us-gaap:DebtInstrumentInterestRateEffectivePercentage us-gaap:Range

us-gaap:DebtInstrumentInterestRateEffectivePercentage

srt:Maximum


Debt
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value3.643.644.750.04750.04750.0550.0550.0550.0550.0550.05250.050.0550.04750.04750.0475
Percentage of DebtInstrumentInterestRateEffectivePercentage100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:Minimum


Debt
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1.061.081.10.01110.01610.02120.02120.02120.02120.02120.02370.02370.02370.02190.02190.0219
Percentage of DebtInstrumentInterestRateEffectivePercentage29.129.723.223.433.938.538.538.538.538.545.147.443.146.146.146.1

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss


Debt
Period End2020-12-31
Value100000.0
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss100.0

us-gaap:DebtWeightedAverageInterestRate

us-gaap:DebtWeightedAverageInterestRate


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value1.952.12.452.460.02430.0250.03090.03160.0320.03180.03080.03070.03030.02980.02720.02670.0260.02520.02430.02430.02380.0250.02020.02040.02170.02210.02440.02550.0270.02690.02990.02960.02960.0297
Percentage of DebtWeightedAverageInterestRate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredCompensationLiabilityClassifiedNoncurrent

us-gaap:DeferredCompensationLiabilityClassifiedNoncurrent


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value14213312711310792106100100958493898685817672697068656461646460575754514744433939373733313533
Percentage of DeferredCompensationLiabilityClassifiedNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredCompensationLiabilityClassifiedNoncurrent us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel1


Deferred
Period End2021-06-302021-03-312020-12-312019-12-31
Value142133127106
Percentage of DeferredCompensationLiabilityClassifiedNoncurrent100.0100.0100.0100.0

us-gaap:DeferredCompensationPlanAssets

us-gaap:DeferredCompensationPlanAssets


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value14213312711310792106100100958493898685817672697068656461646460575754514744433939373733313533
Percentage of DeferredCompensationPlanAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredCompensationPlanAssets us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel1


Deferred
Period End2021-06-302021-03-312020-12-312019-12-31
Value142133127106
Percentage of DeferredCompensationPlanAssets100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredIncomeTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value52463933433936323126
Percentage of DeferredIncomeTaxLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsGross


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value46373431414037383835
Percentage of DeferredTaxAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value1249000.01594000.01091000.01229000.0884000.0952000.0973000.02026000.02430000.02807000.0
Percentage of DeferredTaxAssetsOperatingLossCarryforwards100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal


Deferred
Period End2020-12-31
Value34
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal100.0

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value424000.030000.0287000.01161000.02951000.02497000.03175000.03581000.02243000.02104000.0
Percentage of DeferredTaxAssetsOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpense

us-gaap:DeferredTaxAssetsTaxDeferredExpense


Deferred
Period End2020-12-31
Value3983000.0
Percentage of DeferredTaxAssetsTaxDeferredExpense100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value30262421292725232420
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value3288000.03156000.02902000.03022000.04486000.04569000.03028000.02663000.02799000.02484000.0
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssets

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssets


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value4942353038322217127.897
Percentage of DeferredTaxLiabilitiesGoodwillAndIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesOther


Deferred
Period End2020-12-312019-12-312018-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value491000.0721000.01037000.0122000.0209000.0248000.0222000.0361000.088000.0
Percentage of DeferredTaxLiabilitiesOther100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment


Deferred
Period End2020-12-312019-12-312018-12-312011-12-31
Value2071000.02291000.01356000.0434000.0
Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets

us-gaap:FairValueInputsLevel1


Defined
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value113107921061001009584938986858176726970686564616464605757545147444339393733
Percentage of DefinedBenefitPlanFairValueOfPlanAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeFairValueOfDerivativeLiability us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeFairValueOfDerivativeLiability

us-gaap:OtherCurrentLiabilities, us-gaap:InterestRateSwap


Derivative
Period End2021-06-302020-12-31
Value-292000.013000.0
Percentage of DerivativeFairValueOfDerivativeLiability100.0100.0

us-gaap:OtherNoncurrentLiabilities, us-gaap:InterestRateSwap


Derivative
Period End2021-06-302021-03-312020-12-312019-12-31
Value859000.01299000.02552000.0591000.0
Percentage of DerivativeFairValueOfDerivativeLiability-294.20.019630.80.0

us-gaap:DerivativeLiabilityNotionalAmount us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeLiabilityNotionalAmount

us-gaap:InterestRateSwap


Derivative
Period End2020-09-302020-06-302020-06-262020-03-312018-06-302014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value505025501540404040404040404040
Percentage of DerivativeLiabilityNotionalAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value725079554029595442336355423045383626453932243936302339393022383630263936302633363033
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions us-gaap:AwardType

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions

cbz:RestrictedStockUnitsAndAwards


Employee
Period End2020-12-31
Value6200000.0
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions us-gaap:AwardType

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions

us-gaap:EmployeeStockOption


Employee
Period End2020-12-31
Value1100000.0
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByLiabilityClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue

us-gaap:FairValueInputsLevel3, cbz:ContingentPurchasePricePayable


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value665454342732323128373939464437
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization


Finite
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value1441321281251211181141091051019692878379747066666258556763595657536867666257
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerLists


Finite
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value13712512211911611210910510097928884807672686564605754615751
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization94.995.195.295.395.495.495.595.795.895.996.096.296.496.696.897.097.397.597.297.597.797.890.990.990.8

us-gaap:OtherIntangibleAssets


Finite
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value7.3776.4356.1745.9145.6595.3975.0934.7644.4354.1433.8243.4843.1682.862.5392.2221.9191.6781.8271.5841.3721.2256.1265.775.4915.1915.2674.9654.8635.7185.4545.2446.335
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization5.14.94.84.74.64.64.54.34.24.14.03.83.63.43.23.02.72.52.82.52.32.29.19.19.29.29.29.37.18.48.28.411.1

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths


Finite
Period End2020-12-31
Value14
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive


Finite
Period End2020-12-31
Value8200000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFive100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour


Finite
Period End2020-12-31
Value9600000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFour100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree


Finite
Period End2020-12-31
Value11
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearThree100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo


Finite
Period End2020-12-31
Value12
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo100.0

us-gaap:FiniteLivedIntangibleAssetsGross

us-gaap:FiniteLivedIntangibleAssetsGross


Finite
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value218198198191191191189189186185184184181180176173156154153150149146156151146140144144174178146143138
Percentage of FiniteLivedIntangibleAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsGross us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerLists


Finite
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value207188189182182181180180176177176175173172168165149147146143143140144143132
Percentage of FiniteLivedIntangibleAssetsGross94.895.095.095.195.195.195.195.195.195.395.395.395.695.695.595.595.595.595.395.295.695.692.094.494.3

us-gaap:OtherIntangibleAssets


Finite
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value119.8829.8789.4529.459.4479.3689.3669.2048.7678.7088.7038.0317.9947.8657.7727.0096.9777.157.1466.5896.482128.4468.257.9568.2978.2938.4789.6448.4628.3889.826
Percentage of FiniteLivedIntangibleAssetsGross5.25.05.04.94.94.94.94.94.94.74.74.74.44.44.54.54.54.54.74.84.44.48.05.65.65.75.75.74.85.45.85.87.1

us-gaap:FundsHeldForClients

us-gaap:FundsHeldForClients


Funds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value1391401671231301411791231271381611261311472031341481582131332051511711101121251821101011261641031161431548683105109779973
Percentage of FundsHeldForClients100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FundsHeldForClients us-gaap:InvestmentType

cbz:CertifiedDepositsAndOtherDepositoryAssets


Funds
Period End2021-06-302019-12-312019-09-302018-12-31
Value3.42.52.32.3
Percentage of FundsHeldForClients2.41.41.91.4

us-gaap:InterestRateDerivativesAtFairValueNet us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk

us-gaap:InterestRateDerivativesAtFairValueNet

us-gaap:OtherCurrentLiabilities, us-gaap:InterestRateSwap


Interest
Period End2020-09-302020-06-302020-03-312014-12-31
Value-37000.0-60000.0-178000.0-126000.0
Percentage of InterestRateDerivativesAtFairValueNet100.0100.0100.0100.0

us-gaap:OtherNoncurrentLiabilities, us-gaap:InterestRateSwap


Interest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302016-09-302016-06-30
Value-2878000.0-2669000.0-1706000.0-591000.0-688000.0-427000.0-579000.0-972000.0
Percentage of InterestRateDerivativesAtFairValueNet7778.44448.3958.40.00.00.00.00.0

us-gaap:InterestRateDerivativesAtFairValueNet us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel2


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value-1151000.0-1299000.0-2565000.0-2915000.0-2729000.0-1392000.0-525000.0-688000.0-427000.0533000.01096000.02110000.01950000.01719000.01131000.0659000.0642000.0676000.0529000.0-579000.0-972000.0-605000.0240000.0-55000.0-126000.0-214000.0-267000.0-363000.0-452000.0-539000.0-591000.0713000.0-817000.0-916000.0-817000.0-670000.0
Percentage of InterestRateDerivativesAtFairValueNet0.00.00.07878.44548.3782.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0100.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2020-12-312020-09-302019-12-31
Value363532
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear


Lessee
Period End2020-09-302020-06-302019-12-31
Value8.9731634
Percentage of LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear100.0100.0100.0

us-gaap:LettersOfCreditOutstandingAmount

us-gaap:LettersOfCreditOutstandingAmount


Letters
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312013-12-312012-12-312011-12-31
Value3000000.03000000.01700000.01700000.01300000.01300000.01300000.01300000.01100000.01100000.01100000.0900000.0900000.02300000.02300000.02300000.02300000.02300000.02300000.01900000.01900000.05200000.0
Percentage of LettersOfCreditOutstandingAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LettersOfCreditOutstandingAmount us-gaap:LongtermDebtType

cbz:TwoThousandAndEighteenCreditFacility


Letters
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312018-09-302018-06-30
Value3000000.03000000.01700000.01300000.01300000.0900000.0900000.0
Percentage of LettersOfCreditOutstandingAmount100.0100.0100.0100.0100.0100.0100.0

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity us-gaap:LongtermDebtType

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity

cbz:TwoThousandAndEighteenCreditFacility


Line
Period End2021-06-302021-03-312020-12-312020-09-30
Value233228286284
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity100.0100.0100.0100.0

us-gaap:LongTermLineOfCredit

us-gaap:LongTermLineOfCredit


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value16316210811012038310516015918213516718021417820621021219121923523320515115314610710881914840204223208146149178145159149118
Percentage of LongTermLineOfCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongTermLineOfCredit us-gaap:LongtermDebtType

cbz:TwoThousandAndEighteenCreditFacility


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312018-09-302018-06-30
Value163162108110120383105160159135167180
Percentage of LongTermLineOfCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent


Operating
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value3.63.70.0390.0390.036
Percentage of OperatingLeaseWeightedAverageDiscountRatePercent100.0100.0100.0100.0100.0

us-gaap:RestrictedCash

us-gaap:RestrictedCash


Restricted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value39272325422829353027273239293227
Percentage of RestrictedCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedCashCurrent

us-gaap:RestrictedCashCurrent


Restricted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value3927232542282935302727
Percentage of RestrictedCashCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedIntrinsicValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedIntrinsicValue

us-gaap:PerformanceShares


Share
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value22.1822.1722.1722.1719.82
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedIntrinsicValue100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber

cbz:RestrictedStockUnitsAndAwards


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value389000.0502000.0461000.0470000.0470000.0624000.0577000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber100.0100.0100.0100.0100.0100.0100.0

us-gaap:PerformanceShares


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value447000.0447000.0307000.0324000.0324000.0332000.0200000.0173000.0173000.0173000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber114.989.066.668.968.953.234.70.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

cbz:RestrictedStockUnitsAndAwards


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value25.0722.5821.0320.9720.9719.4317.87
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0

us-gaap:PerformanceShares


Share
Period End2021-06-302021-03-312020-12-31
Value23.8623.8622.18
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue95.2105.7105.5

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant

cbz:TwoThousandFourteenStockIncentivePlan


Share
Period End2020-12-312019-12-31
Value2700000.02200000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber


Share
Period End2021-06-302021-03-312020-09-30
Value1179000.0978000.01540000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice


Share
Period End2021-06-302021-03-312020-09-30
Value16.1315.1913.34
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue


Share
Period End2020-12-31
Value21
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue100.0

us-gaap:SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit

us-gaap:SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit


Significant
Period End2020-12-31
Value500000.0
Percentage of SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit100.0

us-gaap:StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased us-gaap:ShareRepurchaseProgram

us-gaap:StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased

cbz:ShareRepurchaseProgram


Stock
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value2300000.01200000.0800000.01200000.0800000.0
Percentage of StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased100.0100.0100.0100.0100.0

us-gaap:TreasuryStockCarryingBasis us-gaap:ShareRepurchaseProgram

us-gaap:TreasuryStockCarryingBasis

cbz:ShareRepurchaseProgram


Treasury
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value572515187.8
Percentage of TreasuryStockCarryingBasis100.0100.0100.0100.0100.0

us-gaap:TreasuryStockShares

us-gaap:TreasuryStockShares


Treasury
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value8077767574736965626159
Percentage of TreasuryStockShares100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnamortizedDebtIssuanceExpense

us-gaap:UnamortizedDebtIssuanceExpense


Unamortized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value628000.0718000.0808000.0897000.0987000.01077000.01167000.01256000.01346000.01436000.01526000.01618000.01707000.0698000.0828000.0959000.01090000.01221000.01351000.01482000.01613000.01744000.01869000.0
Percentage of UnamortizedDebtIssuanceExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnbilledReceivablesCurrent

us-gaap:UnbilledReceivablesCurrent


Unbilled
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value9310663898510260988410960937910262877793557870814767618247686143
Percentage of UnbilledReceivablesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value200000.0200000.0200000.0300000.0300000.0300000.0300000.0300000.0100000.0100000.0
Percentage of UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued

us-gaap:UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value400000.0700000.0700000.0600000.0400000.0300000.0300000.0300000.0300000.0300000.0
Percentage of UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate


Unrecognized
Period End2020-12-31
Value900000.0
Percentage of UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate100.0

Line plots across dimensions of each concept


us-gaap:SharesIssued
us-gaap:StatementEquityComponents
(None,)
Shares Issuedus-gaap: Statement Equity Components
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities
(None,)
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amountus-gaap: Antidilutive Securities Excluded From Computation Of Earnings Per Share By Antidilutive Securities
Cost Ratio
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
Cost  Ratious-gaap: Consolidation Items, us-gaap: Statement Business Segments
EBT Margin
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
E B T  Marginus-gaap: Consolidation Items, us-gaap: Statement Business Segments
Gross Margin
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
Gross  Marginus-gaap: Consolidation Items, us-gaap: Statement Business Segments
Operating Margin
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
Operating  Marginus-gaap: Consolidation Items, us-gaap: Statement Business Segments
TTM Greenblatt ROC
_
(None,)
T T M  Greenblatt  R O C_
us-gaap:CostOfRevenue
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
Cost Of Revenueus-gaap: Consolidation Items, us-gaap: Statement Business Segments
us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
Disposal Group Not Discontinued Operation Gain Loss On Disposalus-gaap: Consolidation Items, us-gaap: Statement Business Segments
us-gaap:GrossProfit
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
Gross Profitus-gaap: Consolidation Items, us-gaap: Statement Business Segments
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
Income Loss From Continuing Operations 
Before Income Taxes Extraordinary Items Noncontrolling Interestus-gaap: Consolidation Items, us-gaap: Statement Business Segments
us-gaap:InterestExpenseDebt
us-gaap:LongtermDebtType
(None,)
Interest Expense Debtus-gaap: Longterm Debt Type
us-gaap:NonoperatingIncomeExpense
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
Nonoperating Income Expenseus-gaap: Consolidation Items, us-gaap: Statement Business Segments
us-gaap:OperatingIncomeLoss
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
Operating Income Lossus-gaap: Consolidation Items, us-gaap: Statement Business Segments
us-gaap:OtherNonoperatingIncomeExpense
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
Other Nonoperating Income Expenseus-gaap: Consolidation Items, us-gaap: Statement Business Segments
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
(None, 'cbz:BenefitsAndInsuranceServices')
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Product Or Service, us-gaap: Statement Business Segments
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
(None, 'cbz:NationalPractices')
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Product Or Service, us-gaap: Statement Business Segments
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService
(None,)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Product Or Service
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:StatementBusinessSegments
(None,)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Statement Business Segments
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Consolidation Items, us-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:Goodwill
us-gaap:StatementBusinessSegments
(None,)
Goodwillus-gaap: Statement Business Segments
us-gaap:Goodwill
us-gaap:BusinessAcquisition
(None,)
Goodwillus-gaap: Business Acquisition
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components