FCN


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

Table of contents



us-gaap:CommonStockValue

us-gaap:CommonStockSharesIssued
us-gaap:StatementEquityComponents

us-gaap:CommonStockSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

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

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:IncomeStatementLocation

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:CostOfRevenue

us-gaap:CostsAndExpenses

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeTaxExpenseBenefit
us-gaap:ConsolidationItems

us-gaap:IncomeTaxesPaidNet

us-gaap:InterestExpense
us-gaap:ConsolidationItems
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:InterestExpenseDebt

us-gaap:InterestPaidNet

us-gaap:NetIncomeLoss
us-gaap:ConsolidationItems
us-gaap:StatementEquityComponents

us-gaap:NonoperatingIncomeExpense

us-gaap:OperatingIncomeLoss

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:StatementBusinessSegments

us-gaap:Revenues

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:Assets
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:AssetsCurrent

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:AccountsReceivableNetCurrent

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AmortizationOfIntangibleAssets

us-gaap:PropertyPlantAndEquipmentNet
us-gaap:StatementGeographical

us-gaap:Goodwill
us-gaap:StatementBusinessSegments

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill
us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent

us-gaap:AccountsPayableCurrent

us-gaap:AccruedIncomeTaxesCurrent

us-gaap:AccruedLiabilitiesCurrent

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:LiabilitiesCurrent

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:LongTermDebt

us-gaap:LongTermDebtNoncurrent

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue
us-gaap:SubsequentEventType

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapital

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:RetainedEarningsAccumulatedDeficit
us-gaap:ShareRepurchaseProgram

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:ConsolidationItems
us-gaap:StatementEquityComponents

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxAssetsValuationAllowance

fcn:AdjustedSegmentEBITDA
us-gaap:ConsolidationItems
us-gaap:StatementBusinessSegments

fcn:AmortizationAndImpairmentOfOtherIntangibleAssets

fcn:DeferredIncomeTaxExpenseBenefitExcludingCTA

fcn:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityRemeasurementGainLoss

fcn:IncreaseDecreaseInBillingInExcessOfServiceProvided

fcn:InterestAndOtherIncomeExpenseNet
us-gaap:ConsolidationItems

fcn:ProceedsOrPaymentsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions

fcn:PurchaseandRetirementofCommonStockNotYetPaid

fcn:SegmentDepreciationExpense
us-gaap:ConsolidationItems

fcn:StockIssuedDuringPeriodValueStockUnitsUnderIncentiveCompensationPlan
us-gaap:StatementEquityComponents

fcn:UnallocatedCorporateExpenses
us-gaap:ConsolidationItems

us-gaap:AdjustmentForAmortization
us-gaap:ConsolidationItems

us-gaap:AllowanceForDoubtfulAccountsReceivableWriteOffs

us-gaap:AmortizationOfFinancingCostsAndDiscounts
us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1
us-gaap:ConsolidationItems
us-gaap:BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGainOrLoss

us-gaap:ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod

us-gaap:DepreciationAndAmortization

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements
us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments
us-gaap:GoodwillAcquiredDuringPeriod
us-gaap:StatementBusinessSegments

us-gaap:GoodwillForeignCurrencyTranslationGainLoss
us-gaap:StatementBusinessSegments

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities

us-gaap:IncreaseDecreaseInNotesReceivableCurrent

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncrementalCommonSharesAttributableToCallOptionsAndWarrants

us-gaap:IncrementalCommonSharesAttributableToConversionOfDebtSecurities

us-gaap:IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:InterestExpenseDebtExcludingAmortization

us-gaap:LeaseCost

us-gaap:NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeasePayments

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax

us-gaap:OtherNoncashIncomeExpense

us-gaap:PaymentForContingentConsiderationLiabilityFinancingActivities

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired

us-gaap:ProceedsFromLinesOfCredit

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProvisionForDoubtfulAccounts

us-gaap:RepaymentsOfLinesOfCredit

us-gaap:RestructuringAndRelatedCostIncurredCost

us-gaap:RestructuringCharges
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:RestructuringCostAndReserve

us-gaap:RestructuringReserveAcceleratedDepreciation

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability

us-gaap:ShortTermLeaseCost

us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures
us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised
us-gaap:StatementEquityComponents
us-gaap:ShareRepurchaseProgram
us-gaap:StockRepurchasedAndRetiredDuringPeriodShares
us-gaap:StatementEquityComponents

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue
us-gaap:ShareRepurchaseProgram
us-gaap:StatementEquityComponents

us-gaap:SubleaseIncome
us-gaap:ShareRepurchaseProgram
us-gaap:TreasuryStockAcquiredAverageCostPerShare

us-gaap:VariableLeaseCost

fcn:DeferredTaxAssetsNetOperatingLossCarryforwardsAndCreditStateAndLocal

fcn:DeferredTaxAssetsNotesReceivableFromEmployees

fcn:DeferredTaxAssetsOperatingLease

fcn:DeferredTaxAssetsOperatingLossCarryforwardsForeignNetOfValuationAllowance

fcn:DeferredTaxLiabilitiesBasisDifferenceInSubsidiaries

fcn:DeferredTaxLiabilitiesEquityDebtDiscount

fcn:DeferredTaxLiabilitiesForeignWithholdingTaxExcludingUndistributedForeignEarnings

fcn:DeferredTaxLiabilitiesOperatingLease

fcn:DeferredTaxLiabilitiesPropertyEquipmentAndCapitalizedSoftware

fcn:DeferredTaxLiabilitiesRevenueRecognition

fcn:FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour

fcn:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour

fcn:LesseeOperatingLeaseLiabilityToBePaidAfterYearFour

fcn:LessorOperatingLeasePaymentsToBeReceivedAfterYearFour

us-gaap:AccountsReceivableGrossCurrent
us-gaap:Restatement

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent
us-gaap:Restatement
us-gaap:StatementGeographical
us-gaap:AssetsNet
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:BusinessCombinationContingentConsiderationLiability
us-gaap:FairValueByMeasurementBasis

us-gaap:ContractWithCustomerAssetNet

us-gaap:ContractWithCustomerLiability

us-gaap:DebtInstrumentCarryingAmount
us-gaap:DebtInstrument

us-gaap:DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent

us-gaap:DebtInstrumentUnamortizedDiscount

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsCompensatedAbsences

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssets

us-gaap:EmployeeRelatedLiabilitiesCurrent
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:GoodwillGross
us-gaap:StatementBusinessSegments

us-gaap:GoodwillImpairedAccumulatedImpairmentLoss
us-gaap:StatementBusinessSegments

us-gaap:IncomeTaxesReceivable

us-gaap:IntangibleAssetsGrossExcludingGoodwill

us-gaap:InterestPayableCurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:LessorOperatingLeasePaymentsToBeReceivedFiveYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedFourYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths

us-gaap:LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear

us-gaap:LessorOperatingLeasePaymentsToBeReceivedTwoYears
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:LiabilitiesFairValueDisclosure
us-gaap:FairValueByMeasurementBasis

us-gaap:LiabilityForUncertainTaxPositionsNoncurrent

us-gaap:LoansAndLeasesReceivableRelatedParties
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:LongTermDebtFairValue
us-gaap:FairValueByMeasurementBasis

us-gaap:NotesAndLoansReceivableNetCurrent

us-gaap:NotesAndLoansReceivableNetNoncurrent

us-gaap:NotesReceivableRelatedPartiesCurrent

us-gaap:NotesReceivableRelatedPartiesNoncurrent

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OtherAssetsMiscellaneousCurrent

us-gaap:OtherSundryLiabilitiesCurrent

us-gaap:PrepaidExpenseCurrent

us-gaap:RevenueRemainingPerformanceObligation
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
us-gaap:ShareRepurchaseProgram
us-gaap:StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1

us-gaap:UnamortizedDebtIssuanceExpense
us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:UnbilledReceivablesCurrent
us-gaap:Restatement

Plots across concepts


IncomeStatement
Other Comprehensive Income Loss Net Of Tax
Expenses
Allocated Share Based Compensation Expense
Balance Sheet
Intangible Assets Net Excluding Goodwill
Assets
Property Plant And Equipment Net
Current Assets
Prepaid Expense And Other Assets Current
NonCurrent Assets
Intangible Assets Net Excluding Goodwill
PropertyPlantAndEquipmentNet
Property Plant And Equipment Net
Liabilities
Operating Lease Liability
Current Liabilities
Accounts Payable Current
Noncurrent Liabilities
Other Liabilities Noncurrent
Stockholders Equity
Accumulated Other Comprehensive Income Loss Net Of Tax
CashFlow
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInOperatingActivities
Increase Decrease In Prepaid Deferred Expense And Other Assets
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
Nonoperating Income Expense
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Remainder Of Fiscal Year
FiniteLivedIntangibleAssets
Finite Lived Intangible Assets Net
AccountsReceivable
Allowance For Doubtful Accounts Receivable Current

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:CommonStockValue ▁▁▁▂▂▃▃▃▃▃▃▃▃▃▃▃▄▅▆▆▆▅▅▆▅▅▅▅▅▅▅▄▅▅▅▅▆▆▅▅▅▆█0.3430.3420.3450.360.3670.3710.3740.3760.3760.380.3810.3840.3820.3770.3770.3790.3950.4130.420.4230.420.4140.4120.4190.4180.4150.4120.410.4090.4090.4050.4010.4050.4020.4080.4140.420.420.4150.410.4160.420.461NANANA
us-gaap:CommonStockSharesIssued 34.282NA34.481NA36.7137.1137.3937.62937.61238.02738.14738.35638.17937.7237.72937.94139.52741.32142.03742.36742.08341.38541.23441.88741.80741.48541.18141.02740.93640.85440.52640.08940.49440.20840.755NANA41.98141.48440.95441.55542.02646.144NANANA
us-gaap:CommonStockSharesOutstanding ▁▁▁▃▃▃▄▄▄▄▄▅▄▄▄▄▆▇███▇▇██34.28234.22834.48136.036.7137.1137.3937.62937.61238.02738.14738.35638.17937.7237.72937.94139.52741.32142.03742.36742.08341.38541.23441.88741.807NA41.181NANANANANANANANANANA41.98141.48440.95441.55542.02646.144NANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding ▁▁▁▂▂▃▃▃▃▃▃▃▃▂▂▂▃▄▅▅▄▄▅▅▅▄▄▄▄▄▃▃▄▄▄▄▅▅▅▅▅▇▇▇██35.37435.06335.48437.08637.85238.1938.12637.93838.16838.21938.62838.75638.27137.61237.64337.74639.55541.24542.01842.06541.59941.14841.87941.98241.69641.32441.0940.81940.7540.45739.11539.09440.29340.6239.91341.10242.07443.18542.85742.26742.51845.93946.97246.98148.17648.272
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic ▁▁▁▂▃▃▃▃▃▃▃▃▃▃▃▃▄▅▅▅▅▅▅▅▅▅▅▅▅▄▄▄▄▄▅▅▅▅▅▅▅▇████33.45833.48334.19835.63936.16936.41536.54536.61736.9636.98137.36837.31837.00136.736.90637.43139.55540.52741.20141.23940.8240.50641.07841.09440.79240.38439.99139.78939.68139.43839.11539.09439.14339.40339.91340.38740.59240.35839.93240.18240.58743.87745.1145.47145.85745.799
 us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities fcn:StockOptionsAndRestrictedShares▁█0.0020.008NA0.0830.0540.012NA0.0010.0250.049NA0.0040.0440.613NA2.3281.9470.903NA0.7531.3742.657NA1.361.5242.173NA2.7413.6373.177NA4.586NANANANANANANANANANANANANANA
us-gaap:EarningsPerShareBasic ██▇▇▇▇▆███▆▇▇▇█▆▄▅▅▆▆▆▅▅▆▆▅▆▅▅▄▂▆▆▁▆▅▅▆▆▅▆▅▅▆▅1.881.931.631.411.331.560.81.651.751.690.631.191.181.061.810.86-0.130.350.170.530.650.750.250.250.530.590.020.570.430.46-0.18-1.290.60.6-2.150.560.190.461.00.730.420.50.20.440.550.31
us-gaap:EarningsPerShareDiluted ███▇▇▇▆███▆▇▇▇█▆▅▅▅▆▆▆▅▅▆▆▅▆▆▆▄▃▆▆▁▆▅▆▆▆▅▆▅▆▆▅1.771.841.571.351.271.490.761.591.691.640.611.141.141.041.780.85-0.130.340.170.520.640.730.250.250.520.570.020.550.420.45-0.18-1.290.580.58-2.150.550.180.430.930.70.40.480.190.430.520.29
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 TTM Greenblatt ROC _ _██▇▇▇▇▆███▆▆▇▇▅▆▄▅▄▅▆▆▅▆▆▆▅▆▆▆▄▂▇▆▁▆▅▆▇▇▅▆▅83.9888.50670.93873.0765.59973.05648.282.13888.09587.16244.80357.11261.83162.25934.52547.0680.02927.08910.68135.07444.16252.23923.76545.74447.15447.84821.90646.47138.93240.11711.45-35.59960.25945.329-55.33146.58826.83240.94768.20459.42236.31248.49331.6NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AllocatedShareBasedCompensationExpense ▁█5.0759.588NA5.2414.8668.934NA5.8055.2577.675NA5.3985.5855.968NA3.1312.4886.681NA4.864.7786.662NA4.5714.3686.942NA3.8066.3219.076NA5.4217.2669.933NA6.6547.07810.303NA7.149.14210.382NA7.9327.257NA
us-gaap:ComprehensiveIncomeNetOfTax ▇▇█▇▇▅▆▆▇▇▅▆▅▆▇▆▅▅▄▅▅▆▅▄▆▅▄▄▅▅▄▃▅▅▁▆▄▆▆▅▅▆68.58959.25490.20571.50257.74225.64552.25643.78959.78367.86813.53940.15319.92649.39168.77443.4485.01821.386-11.13817.2137.73829.8236.034-6.9235.0073.204-18.138-0.0224.94122.845-6.751-33.50611.7728.171-85.47435.444-3.21331.2836.19713.56617.16134.077NANANANA
us-gaap:CostOfRevenue █▇▇▆▆▆▆▅▆▅▄▄▄▄▄▃▄▄▄▃▄▄▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁490.722468.424440.274417.179413.011402.247418.672380.892386.266349.066340.162336.477330.318321.117307.566294.851304.071309.072308.239293.702303.194305.636299.336301.609291.469279.03281.689293.244295.549274.275268.901255.152259.528258.48245.08241.614248.22245.618233.005249.975247.036219.14207.959206.831209.031197.46
us-gaap:CostsAndExpenses █▇▆▆▆▆▆▆▆▅▄▄▄▄▄▃▄▄▄▃▄▄▄▃▃▃▃▃▄▃▃▄▂▂▄▂▃▂▂▂▂▁▂▁▁▁627.506597.771555.643549.179542.253531.537554.018510.968518.024464.112460.19455.9450.267435.515433.186401.894444.686419.255431.239402.968415.985418.046418.439409.726401.983384.49403.252404.707415.392385.435404.548450.242354.354361.849454.676339.467369.411354.281322.509354.38364.125313.323324.648299.232297.085318.197
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments ██▇▇▇▇▆███▆▇▇▇▅▆▄▅▄▆▆▆▅▅▆▆▅▆▅▅▄▂▆▆▁▆▅▅▇▆▅▆▅▆▆▅77.77484.74362.01164.57962.64473.21239.68580.27985.91182.57531.55864.29757.72254.21528.4341.411-4.62921.8935.26931.98341.98448.56717.92616.48635.63135.34310.62334.85127.47228.465-1.28-47.26146.80133.551-72.14934.96411.27429.02554.60445.58924.73535.18315.6232.3740.42922.879
us-gaap:IncomeTaxExpenseBenefit ▇█▆▇▇▇▇███▆█▇▇▁▆▅▆▅▇▇▇▆▆▇▇▆▇▇▇▆▆█▆▇▇▆▇▇▇▆▇▆▇▇▆14.99220.2476.42214.40714.4716.46510.62419.85721.31319.937.83419.96414.11315.27-38.4589.1970.5277.877-1.83210.29215.43718.3867.5776.17713.92211.6579.70212.32910.22510.3485.8593.3623.3159.87113.72812.2513.52710.59414.72316.157.82313.3856.76512.20615.3638.694
us-gaap:IncomeTaxesPaidNet ▄▃▆█▄▅▆▄▃▃▇▃▅▂▁▂▂▃▃▄▂▂▃▃▂▃▂▃▃▄▄▃▄▃▅▂▃▇▃▃▄▅▃▂▃▆11.4597.28321.80932.48612.56216.58821.05613.0658.1768.64425.2444.18714.4491.688-3.8133.4061.094.2464.36111.4163.6690.8244.2687.2652.9876.1342.7468.8374.70911.03411.5175.11111.4766.9714.950.7385.00826.2225.2996.42710.02116.9955.113-0.2726.5221.876
us-gaap:InterestExpense ▁▁▁▁▁▁▁▁▁▁▃▃▂▂▂▂▂▂▂▂▂▂▂▅▆▆▆▆▆▆▆▆▆▆▆▆██▇▇▇██▆▅▅5.2944.7974.6365.1515.1574.8614.8354.8324.7934.7467.0767.2466.5836.2446.5476.766.255.8015.9836.3046.3036.2296.23111.69612.47312.36812.48812.63412.90812.65512.77612.81413.07112.71513.12413.20815.19515.20414.49514.31914.515.3115.66311.90411.37811.318
 us-gaap:InterestExpenseDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType fcn:ConvertibleNoteDue2023,us-gaap:SeniorNotes██████████▇▄▁▁3.9613.9293.8983.8673.8363.8063.7773.7473.7183.6893.6621.6580.00.0NA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:InterestPaidNet ▂▃▁▃▁▃▁▃▁▃▆▁█▂▇1.03.8540.6373.4470.5323.1360.3423.7970.0173.458.2590.40811.9331.08710.861NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss ██▇▇▇█▆███▆▇▇▇█▆▅▆▅▆▆▆▅▅▆▆▅▆▆▆▅▃▆▆▁▆▅▆▇▆▆▆▅▆▆▆62.78264.49655.58950.17248.17456.74729.06160.42264.59862.64523.72444.33343.60938.94566.88832.214-5.15614.0167.10121.69126.54730.18110.34910.30921.70923.6860.92122.52217.24718.117-7.139-50.62123.48623.68-85.87722.7137.74718.43139.88129.43916.91221.7988.85520.16425.06614.185
us-gaap:NonoperatingIncomeExpense ▅▆▅▅▆▇▅▆▆▆▄█▆▅▅▆▆▆▆▆▆▆▅▁▄▄▄▄▄▄▄▄▄▄▃▄▄▄▄▄▄▄▄▄-6.206-3.763-8.927-8.491-2.9550.156-8.515-1.859-2.184-4.587-13.2457.185-4.109-8.044-6.095-5.657-4.658-5.196-5.412-3.091-2.178-3.672-5.839-29.258-11.523-12.505-11.283-11.62-11.46-11.652-12.73-11.662-13.458-11.778-16.818-11.624-15.558-11.922-13.6-13.833-11.577-13.31-15.98-14.538NANA
us-gaap:OperatingIncomeLoss ██▇▇▇▇▆███▆▆▇▇▅▆▄▅▄▅▆▆▅▆▆▆▅▆▆▆▄▂▇▆▁▆▅▆▇▇▅▆▅▆▆▅83.9888.50670.93873.0765.59973.05648.282.13888.09587.16244.80357.11261.83162.25934.52547.0680.02927.08910.68135.07444.16252.23923.76545.74447.15447.84821.90646.47138.93240.11711.45-35.59960.25945.329-55.33146.58826.83240.94768.20459.42236.31248.49331.646.90851.94831.843
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax ▅▄█▇▅▁▇▃▄▅▃▄▂▅▅▆▅▅▂▄▂▄▄▂▆▂▂▂▅▅▄▆▃▃▄▆▃▆▄▃▅5.807-5.24234.61621.339.568-31.10223.195-16.633-4.8155.223-10.185-4.18-23.68310.4461.88611.23410.1747.37-18.239-4.478-18.809-0.358-4.315-17.22913.298-20.482-19.059-22.5427.6944.7280.38817.115-11.714-15.5090.40312.731-10.9612.849-3.684-15.8731.836NANANANANA
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▅▄█▇▅▁▇▃▄▅▃▄▂▅▅▆▅▅▂▄▂▄▄▂▆▂▂▂▅▅▄▆▃▃▄▆▃▆▄▃▅5.807-5.24234.61621.339.568-31.10223.195-16.633-4.8155.223-10.185-4.18-23.68310.4461.88611.23410.1747.37-18.239-4.478-18.809-0.358-4.315-17.22913.298-20.482-19.059-22.5427.6944.7280.38817.115-11.714-15.5090.40312.731-10.9612.849-3.684-15.8731.836NANANANANA
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ██▆▆▆▆▆▆▆▅▄▄▄▄▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁711.486686.277626.581622.249607.852604.593602.218593.106606.119551.274504.993513.012512.098497.774467.711448.962444.715446.344441.92438.042460.147470.285442.204455.47449.137432.338425.158451.178454.324425.552415.998414.643414.613407.178399.345386.055396.243395.228390.713413.802400.437361.816356.248346.14349.033350.04
us-gaap:Revenues ██▆▆▆▆▆▆▆▅▄▄▄▄▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁711.486686.277626.581622.249607.852604.593602.218593.106606.119551.274504.993513.012512.098497.774467.711448.962444.715446.344441.92438.042460.147470.285442.204455.47449.137432.338425.158451.178454.324425.552415.998414.643414.613407.178399.345386.055396.243395.228390.713413.802400.437361.816356.248346.14349.033350.04
us-gaap:SellingGeneralAndAdministrativeExpense █▇▅▆▇▇█▇▇▅▆▆▆▅▅▄▄▄▆▄▅▄▆▄▅▄▆▄▄▅▄▃▃▃▃▂▂▄▂▃▃▂▂▂▁▁133.93126.546112.422122.102126.928126.959133.032127.951129.906113.185118.163117.448117.897112.128111.176103.909107.342107.295116.478106.22108.245103.609116.351105.058109.045102.214115.965102.461107.032108.387107.19694.51396.32596.64794.05888.90992.46102.58992.93298.56294.81988.72988.22286.11582.20284.401
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:Assets █▇▇▇▆▅▇▆▅▄▃▅▂▂▂▂▁▁▁▃▂▁▂▂▃▃▃▃▃▂▃▂▂▂▂▃▃▃▃▂▂▂▃2938.4272778.22777.3632794.3982704.9072637.1812783.1422690.2692571.3632464.9012379.1212628.8382257.4122276.4522257.2412260.5932224.7932172.5622225.3682341.6182287.4642225.0442229.0182294.0122437.0642371.3692430.5272414.8912373.242312.5672364.9472277.5422270.8812239.4522275.4522349.9482374.0812371.0972411.0842326.5192299.6952247.2642414.359NANANA
us-gaap:Liabilities █▇▇▆▅▄▆▅▄▂▂▅▁▂▂▃▃▁▂▃▃▂▃▃▅▅▆▆▅▅▆▅▄▄▄▄▅▅▆▅▅▅▅1449.2171361.851377.1821319.9011225.8041168.4971294.01229.0351152.3511062.8791030.2961277.363981.6111039.0181065.271129.6641085.615976.0331018.011110.0331084.2211043.7981081.4151131.6091273.4821254.1151327.7811301.5921265.321235.5391322.6881241.4411191.3141181.1241207.221176.2281223.7581221.5141304.8821274.751271.1961242.2181247.04NANANA
us-gaap:LiabilitiesAndStockholdersEquity █▇▇▇▆▅▇▆▅▄▃▅▂▂▂▂▁▁▁▃▂▁▂▂▃▃▃▃▃▂▃▂▂▂▂▃▃▃▃▂▂▂▃2938.4272778.22777.3632794.3982704.9072637.1812783.1422690.2692571.3632464.9012379.1212628.8382257.4122276.4522257.2412260.5932224.7932172.5622225.3682341.6182287.4642225.0442229.0182294.0122437.0642371.3692430.5272414.8912373.242312.5672364.9472277.5422270.8812239.4522275.4522349.9482374.0812371.0972411.0842326.5192299.6952247.2642414.359NANANA
us-gaap:StockholdersEquity █▇▇█████▇▇▆▆▅▄▄▃▃▄▄▄▄▄▃▃▃▃▂▃▂▂▂▁▂▂▂▃▃▃▂▂▁▁▃1489.211416.351400.1811474.4971479.1031468.6841489.1421461.2341419.0121402.0221348.8251351.4751275.8011237.4341191.9711130.9291139.1781196.5291207.3581231.5851203.2431181.2461147.6031162.4031163.5821117.2541102.7461113.2991107.921077.0281042.2591036.1011079.5671058.3281068.2321173.721150.3231149.5831106.2021051.7691028.4991005.0461167.319NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AssetsCurrent █▇▇█▇▆█▇▆▅▅█▃▄▃▃▃▃▃▄▃▃▃▃▅▄▄▄▃▃▃▃▂▂▂▂▂▂▃▂▁▁▃1213.4621151.1491129.7071175.731127.3411066.4471178.6611096.151019.255921.214965.3531206.513807.436815.778794.179788.213777.789737.136783.171864.066811.742744.351741.625788.479904.423847.934884.173856.968785.268731.226803.861746.91664.777651.729674.375692.801724.436719.18770.954677.503632.096593.192788.715NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▄▄▅▅▅▃▆▄▃▃▅█▂▂▃▂▂▂▃▃▃▂▂▁▄▃▄▃▁▁▃▂▁▁▂▂▂▃▄▂▁▂▆▅▂▁256.875233.421294.953304.658304.206223.063369.373258.47189.106179.241312.069505.867116.556152.044189.961157.961138.511120.959216.158225.184182.665114.451149.76104.974239.988225.295283.68178.77894.41277.005205.833147.92692.554100.703156.785126.928165.981182.438264.423128.2398.745112.367384.57331.182123.25480.878
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents ▄▃▄▄▄▃▆▄▂▂▅█▁▂▂256.875233.421294.953304.658304.206223.063369.373258.47189.106179.241312.069505.867116.556152.044189.961NANANA216.158NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AccountsReceivableNetCurrent █▇▆▇▆▇▆▇▇▅▄▅▅▄▄▄▄▄▃▄▄▄▃▄▄▄▃▄▄▄▃▃▃▃▂▃▃▃▂▃▃▂▁846.121798.516711.357762.76714.918736.898693.372739.463743.402656.127554.608623.397607.455583.588522.878547.132553.215526.18474.897547.588547.298553.23499.784554.4549.3513.285485.101565.657579.737545.072476.445494.91480.032470.596429.24485.057472.659448.975429.102469.036446.175396.311326.077NANANA
us-gaap:PrepaidExpenseAndOtherAssetsCurrent ▇▇█▆▇▆▇▅▄▄▆▃▄▃▄▄▄▅▅▄▃▃▄▄▄▄▅▄▄▃▅▂▂▃▃▂▂▂▁▁78.37383.67288.14474.22375.93874.54480.8165.84957.14156.6469.44845.93154.80650.77555.64959.19658.93760.68360.25258.80447.36145.19655.96655.16653.72751.12160.85254.04552.16249.01461.840.33440.29843.15750.35135.32735.438.46630.44830.784NANA28.174NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:PropertyPlantAndEquipmentGross NANA246.393NANANA260.798NANANA232.56NANANA212.74NANANA202.044NANANA235.228NANANA221.87NANANA218.003NANANA193.133NANANA179.599NANANA164.395NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType fcn:ComputerEquipmentandSoftwareNANA107.901NANANA119.904NANANA106.318NANANA100.186NANANA94.637NANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:ConstructionInProgressNANA15.291NANANA4.359NANANA2.754NANANA0.806NANANA2.349NANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:FurnitureAndFixturesNANA26.127NANANA36.698NANANA34.865NANANA33.827NANANA35.78NANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:LeaseholdImprovementsNANA97.074NANANA99.837NANANA88.623NANANA77.921NANANA69.278NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment NANA144.751NANANA167.126NANANA147.983NANANA137.665NANANA140.188NANANA160.468NANANA139.707NANANA138.996NANANA124.941NANANA105.151NANANA91.157NANANA
us-gaap:AmortizationOfIntangibleAssets ▃▂▃▂▂▂▂▁▁▁▁▁▁▂▂▃▂▂▂▃▂▂▃▃▃▃▄▃▄▅▇▇▇▇▇▇▇▇▇▇▇▇▇█▇█2.8542.8012.9472.7952.3142.3312.3142.1251.8521.8611.8651.9752.0522.272.7662.8822.4222.4932.2652.8452.592.6062.8072.93.0073.0124.0553.3983.4524.6165.6615.7765.9535.5645.6345.7665.495.5175.5765.8435.4985.4545.6816.2865.8526.091
us-gaap:PropertyPlantAndEquipmentNet █▆▆▅▅▅▅▅▄▄▄▄▃▃▃▂▁▁▁▂▂▂▃▃▄▃▄▄▄▄▃▂▂▂▂▂▂▂▃▃▃▂▃117.477100.686101.64295.54491.75392.85293.67292.13587.37684.52284.57782.47675.04675.58675.07570.98260.2859.47461.85666.42268.76471.26374.7677.71680.52779.38982.16383.5283.49585.99379.00766.365.60766.70668.19266.93368.80771.80774.44875.02771.98370.83473.238NANANA
us-gaap:Goodwill ▄▄▄▃▂▂▂▂▁▁▁▁▂▃▂▂▂▂▁▂▂▂▂▂▃▂▃▃▃▃▃▂▅▅▅█▇█▇▇▇▇▅1240.0571233.2921234.8791223.7641196.1621191.9481202.7671197.4061172.5571174.7421172.3161175.9291198.7321208.0111204.8031204.1641187.6641183.6271180.0011188.231189.6021198.071198.2981199.491208.5081201.6521211.6891213.8091225.4031221.3181218.7331194.4141263.1661252.441260.0351327.0411313.3821320.0021309.3581295.6791305.171295.5591269.447NANANA
us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill NANANA130.54116.248116.019117.954116.717NANA107.287NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass us-gaap:TradeNames▄▄▄▄▄▄▄▄5.15.15.15.15.15.15.15.1NANA5.1NANANA5.6NANANA5.6NANANA5.6NANANA5.6NANANANANANANANANA5.6NA5.6NANANANANANANA
us-gaap:IntangibleAssetsNetExcludingGoodwill ▁▁▂▂▁▁▂▂▁▁▁▁▂▂▂▂▂▂▂▃▃▃▃▃▄▄▄▄▅▅▅▅▆▆▆▆▆▇▇▇███37.65338.17241.5543.65233.58835.68238.43241.24730.9232.87634.63336.72939.37942.3944.1546.78848.21349.89552.1254.49357.56861.19363.93567.25270.35672.26477.03480.91386.2788.87197.14892.738101.675101.858104.181104.068107.782114.666118.889124.623132.035131.05134.97NANANA
us-gaap:FiniteLivedIntangibleAssetsNet ▄▄▇█▁▂▄▆32.55333.07236.4538.55228.48830.58233.33236.147NANA29.533NANANA38.55NANANA46.52NANANA58.335NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OperatingLeaseRightOfUseAsset █▆▆▆▆▆▆▆▆▆▁223.618148.322156.645153.818152.245149.57159.777152.064155.1146.3890.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent ▅▄▅▂▃▂▃▁▁▁▂▂▄▃▃▃▃▃▃▆▄▃▃▄▅▅▅▅▆▅▆▇▇▇▇▇▆▅▅█▇▆▆50.48547.5351.81935.81239.17236.88140.832.46730.00530.0137.77137.84945.91543.47240.92943.98442.15542.14243.69656.04347.69342.07243.51848.36453.17454.86753.31953.1261.09754.43857.964.98664.74865.77167.04661.96460.48352.65555.68770.31764.30557.66760.312NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent ▇██▇▇█▇▇▅▅▃▄▂▃▂▃▁▁▁▂▂▂▁▂▁▂▂▂▂▃▄▃▁▂▂▂▂▄▅▃▃▂▃156.736167.818170.066164.493163.162170.93158.936158.136138.344128.642104.6116.22293.988105.96694.873108.05485.40387.41187.3297.14494.78295.60689.845101.46490.083102.23199.49499.85796.005112.808126.886107.36385.97497.87798.10999.53696.421120.024132.773108.05105.589102.57105.864NANANA
us-gaap:AccountsPayableCurrent NANA13.124NANANA18.346NANANA17.728NANANA14.078NANANA15.779NANANA9.937NANANA9.119NANANA14.467NANANA10.139NANANA14.327NANANA11.078NANANA
us-gaap:AccruedIncomeTaxesCurrent NANA14.719NANANA35.895NANANA13.119NANANA12.075NANANA9.231NANANA17.309NANANA12.191NANANA9.323NANANA11.114NANANA14.95NANANA11.757NANANA
us-gaap:AccruedLiabilitiesCurrent NANA65.082NANANA46.511NANANA52.461NANANA45.676NANANA43.137NANANA46.279NANANA53.298NANANA53.164NANANA44.424NANANA41.474NANANA26.579NANANA
us-gaap:ContractWithCustomerLiabilityCurrent ▂▅▅▆▄▄▂▁▆█▅36.94442.43244.17246.62140.28840.21936.69834.34945.02250.444.434NANANA46.942NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LiabilitiesCurrent ▅▄▇▆▅▄▆▅▄▃▄█▂▂▃▃▂▁▃▃▂▁▂▂▂▁▃▂▂▂▃▂▁▁▂▃▃▃▄▄▁▁▁562.562495.778670.171608.261517.468451.341612.537546.784463.878391.465482.57737.4352.304343.467410.328366.866314.738293.328378.455365.529325.042287.519347.077334.51314.621291.155367.092345.862308.874299.21384.33304.134261.778269.245304.197367.064415.437408.553497.837446.086293.903278.316289.282NANANA
us-gaap:OperatingLeaseLiabilityCurrent ▁▄█▇▅▂▁35.21438.49442.71641.87539.59536.23535.727NANANA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:LongTermDebt ▅▇▂▂▃▃▁▁▂▁▁▁▄▇▅▇█391.581458.84286.131308.454315.808328.193275.609273.055290.531268.037265.571263.317371.662441.473396.284465.0485.0NA370.0475.0500.0507.0500.0520.0711.0711.0711.0711.0717.0737.0717.0717.0NANA723.0NANANANA797.413796.798NA792.822NANANA
us-gaap:LongTermDebtNoncurrent ▃▄▁▂▂▂▁▁▁▁▁▁▃▄▃▄▄▃▃▄▅▅▅▅████████391.581458.84286.131308.454315.808328.193275.609273.055290.531268.037265.571263.317371.662441.473396.284461.095480.906402.717365.528470.339495.15501.961494.772520.0700.0700.0700.0705.0711.0711.0711.0711.0NANA717.0NANANANA645.464790.296NA785.515NANANA
us-gaap:DeferredIncomeTaxLiabilitiesNet █▆▆▅▆▅▅▆▆▇▆▅▃▂▁169.009157.861158.342150.572155.293152.347151.352159.406155.799163.303155.088153.045134.081129.274124.471NANANA173.799NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesNoncurrent ▄▄▅▄▂▂▂▂▁▁▇▇▇▇█▇▆▅▅▅▅▅▅▄▄▄▄▄▄▃▃▃▃▃▃▂▂▂▂▃▃▃▃95.93295.995100.86190.63875.48273.02278.12478.3865.03366.2127.067123.601123.564124.804134.187120.41114.288102.649100.228103.397102.596103.76199.77998.91997.32795.49798.75798.14796.31682.93989.66185.56183.42583.41580.24872.9770.86776.96675.39586.37587.45285.26180.061NANANA
us-gaap:OperatingLeaseLiabilityNoncurrent █▆▆▆▆▆▆▆▆▆▁230.133153.376161.677161.976161.753163.594176.378171.41177.11173.8740.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo █▁▅▃45.99934.741.05537.736NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree █▁▄▂40.78129.68434.43431.546NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour █▁▄▃34.87124.68129.68827.76NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA24.7NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA63.943NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:StockholdersEquity █▇▇█████▇▇▆▆▅▄▄▃▃▄▄▄▄▄▃▃▃▃▂▃▂▂▂▁▂▂▂▃▃▃▂▂▁▁▃1489.211416.351400.1811474.4971479.1031468.6841489.1421461.2341419.0121402.0221348.8251351.4751275.8011237.4341191.9711130.9291139.1781196.5291207.3581231.5851203.2431181.2461147.6031162.4031163.5821117.2541102.7461113.2991107.921077.0281042.2591036.1011079.5671058.3281068.2321173.721150.3231149.5831106.2021051.7691028.4991005.0461167.319NANANA
us-gaap:CommonStockValue ▁▁▁▂▂▃▃▃▃▃▃▃▃▃▃▃▄▅▆▆▆▅▅▆▅▅▅▅▅▅▅▄▅▅▅▅▆▆▅▅▅▆█0.3430.3420.3450.360.3670.3710.3740.3760.3760.380.3810.3840.3820.3770.3770.3790.3950.4130.420.4230.420.4140.4120.4190.4180.4150.4120.410.4090.4090.4050.4010.4050.4020.4080.4140.420.420.4150.410.4160.420.461NANANA
us-gaap:AdditionalPaidInCapital ▄▄▄▄▄▄▄▄▄▄▄35.30635.30635.30635.30635.30635.30635.30635.30635.30635.30635.306NANANANANANANANANANANANANANA404.475393.174385.591380.193374.242362.322349.417359.373349.909367.978387.986400.027396.074383.978365.746338.789334.08532.929NANANA
us-gaap:AdditionalPaidInCapitalCommonStock 4.27NANA46.642122.743170.062216.162240.508242.075284.864299.534315.72280.201261.765266.035273.765325.446387.797416.816429.902418.776404.523400.705421.532415.793NA393.174NANANANANANANANANANANANANANANANANANANA
us-gaap:RetainedEarningsAccumulatedDeficit ██▇█▇▇▇▆▆▅▅▅▄▄▄▃▃▃▃▃▃▃▂▂▂▂▂▂▂▁▁▁▂▂▁▂▂▂▂▁▁▁▁1590.4671527.6851506.2711568.5461518.3741470.21413.4531384.3921323.971259.3721196.7271173.0031128.671085.0611045.774978.886946.672951.828941.001933.9912.209885.662855.481845.132834.823813.114789.428788.507765.985748.738730.621737.76788.381764.895741.215827.092804.379796.632778.201738.321726.129709.217687.419NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▄▄▄▃▁▁▃▁▂▃▂▃▃▄▄▄▃▂▂▃▃▄▄▄▅▅▆▇██▇▇▆▇██▇█▇▇██▇-105.87-111.677-106.435-141.051-162.381-171.949-140.847-164.042-147.409-142.594-147.817-137.632-133.452-109.769-120.215-122.101-133.335-143.509-150.879-132.64-128.162-109.353-108.995-104.68-87.452-100.75-80.268-61.209-38.667-46.361-51.089-51.477-68.592-56.878-41.369-41.772-54.503-43.543-56.392-52.708-36.835-38.671-53.49NANANA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue ▁█4.9487.242NA5.4294.6937.454NA3.8533.8146.3933.3583.6563.8874.6763.1422.9292.8927.0673.3223.53.2955.9433.2623.4413.8456.7363.9133.7365.6919.50312.5855.4986.99110.0554.8966.667.25210.5537.15113.4259.0056.671NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▇▁█▇▇▂▇▇▅▂▇▇▅▃▇125.558-166.584186.092111.563152.976-123.562141.02131.30447.648-102.086144.4120.85734.615-69.2123.592NANANANANANANANANANANANANANA-110.79589.46584.43721.673-2.304106.56470.9120.533-57.821126.9859.67226.373-39.19799.18873.91149.218-27.263
us-gaap:NetCashProvidedByUsedInInvestingActivities ▂▄▃▁▄▄▃▂▃▃▄█▄▄▃-29.553-7.976-9.744-36.491-5.657-8.228-14.844-25.17-10.511-10.081-4.43938.714-7.878-7.653-11.762NANANANANANANANANANANANANANA-30.8-39.355-9.115-32.634-21.987-42.314-12.907-11.85-23.335-6.58-23.07-16.72-47.278-10.513-40.632-9.253-10.688
us-gaap:NetCashProvidedByUsedInFinancingActivities ▄▇▃▄▄▅▅▅▅▅▁█▄▆▄-76.918116.416-204.639-85.363-69.203-0.848-26.791-29.368-24.385-22.767-327.04230.428-54.83133.924-81.801NANANANANANANANANANANANANANA13.0426.232-21.2322.064-30.193-35.287-98.821-3.02-1.11816.644-5.896-23.41-186.067-34.169173.1843.3361.501
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▄▃▃▃▄▂▅▄▃▂▁█▃▃23.454-61.532-9.7050.45281.143-146.31110.90369.3649.865-132.828-193.798389.311-35.488-37.917NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:DeferredIncomeTaxExpenseBenefit NANA-8.389-5.7863.5830.545-7.7963.118-7.7868.752NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncreaseDecreaseInAccountsReceivable ▆█▁▆▃▇▂▄██▂▅▆▇▃▄▅▆▁▄▄▆▂▅▅▆▁▄▆▇▃▅▄▆▂▄▅▅▂▅▆▆▃▄▄▅45.44293.396-59.69143.687-18.15960.963-49.754.7991.10895.746-58.33531.0737.62261.677-21.809-5.4625.61152.489-70.7899.8175.45452.047-48.76313.70129.3841.33-64.775-7.9444.31371.474-15.97613.43911.11647.711-58.77512.27628.19421.996-35.95430.99553.43645.701-15.964-0.052.60432.291
us-gaap:NetCashProvidedByUsedInOperatingActivities ▇▁█▇▇▂▇▇▅▂▇▇▅▃▇125.558-166.584186.092111.563152.976-123.562141.02131.30447.648-102.086144.4120.85734.615-69.2123.592NANANANANANANANANANANANANANA-110.79589.46584.43721.673-2.304106.56470.9120.533-57.821126.9859.67226.373-39.19799.18873.91149.218-27.263
us-gaap:NetIncomeLoss ██▇▇▇█▆███▆▇▇▇█▆▅▆▅▆▆▆▅▅▆▆▅▆▆▆▅▃▆▆▁▆▅▆▇▆▆▆▅▆▆▆62.78264.49655.58950.17248.17456.74729.06160.42264.59862.64523.72444.33343.60938.94566.88832.214-5.15614.0167.10121.69126.54730.18110.34910.30921.70923.6860.92122.52217.24718.117-7.139-50.62123.48623.68-85.87722.7137.74718.43139.88129.43916.91221.7988.85520.16425.06614.185
us-gaap:ShareBasedCompensation ▃▄▃▃▃▄▂▂▂▄▂▂▂▃▂▂▁▄▂▂▂▄▂▂▂▄▂▂▃▆█▃▄▆▃▄▄▆▅█▆▄▁▆▄▄4.9487.2425.3285.4294.6937.4543.9183.8533.8146.3933.3583.6563.8874.6763.1422.9292.6787.2813.5393.7143.5096.1583.5953.7753.8456.7363.9183.7365.6919.50312.5855.4986.99110.0554.8966.667.25210.5538.30913.1019.1356.8071.91610.5547.2577.394
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▂▄▃▁▄▄▃▂▃▃▄█▄▄▃-29.553-7.976-9.744-36.491-5.657-8.228-14.844-25.17-10.511-10.081-4.43938.714-7.878-7.653-11.762NANANANANANANANANANANANANANA-30.8-39.355-9.115-32.634-21.987-42.314-12.907-11.85-23.335-6.58-23.07-16.72-47.278-10.513-40.632-9.253-10.688
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment █▃▄▅▂▃▆▂▄▄▂▅▃▃▅▃▃▂▂▄▂▂▂▃▃▃▃▄▂▆█▃▃▃▃▃▃▂▂▅▃▂▃▁▂▂19.727.9769.20311.7645.6638.23615.0466.36510.50810.1534.42911.6218.547.6811.9836.8947.2965.8316.0810.8725.6216.3626.7257.1418.6578.8767.45910.0196.59915.17919.558.8646.8077.3237.2256.8068.9724.7566.49611.897.7524.9537.7673.2016.4645.168
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▄▇▃▄▄▅▅▅▅▅▁█▄▆▄-76.918116.416-204.639-85.363-69.203-0.848-26.791-29.368-24.385-22.767-327.04230.428-54.83133.924-81.801NANANANANANANANANANANANANANA13.0426.232-21.2322.064-30.193-35.287-98.821-3.02-1.11816.644-5.896-23.41-186.067-34.169173.1843.3361.501
us-gaap:PaymentsForRepurchaseOfCommonStock ▁▃█▄▃▃▂▁▃▂▂▂▁▂▂▃▄▂▂▁▁▁0.046.133177.76176.15450.54349.13527.84811.05645.0121.88326.51815.00.014.2212.80952.77265.59536.91818.5860.00.02.903NANANANA0.00.00.04.36717.99420.0110.028.75830.019NANANA0.00.00.0209.414.496NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value343000.0342000.0345000.0360000.0367000.0371000.0374000.0376000.0376000.0380000.0381000.0384000.0382000.0377000.0377000.0379000.0395000.0413000.0420000.0423000.0420000.0414000.0412000.0419000.0418000.0415000.0412000.0410000.0409000.0409000.0405000.0401000.0405000.0402000.0408000.0414000.0420000.0420000.0415000.0410000.0416000.0420000.0461000.0470000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesIssued


Common
Period End2021-06-302020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value34343637373737383838383737373941424242414141414141414040404040404041414041424646
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStockSharesIssued us-gaap:StatementEquityComponents

us-gaap:CommonStock


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312013-12-312012-12-31
Value34343436363737373738383838373737394142424241414141414040
Percentage of CommonStockSharesIssued100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStockSharesOutstanding


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value343434363637373737383838383737373941424242414141414141414041424646
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value35353537373838373838383838373737394142424141414141414140404039394040394142434242424546464848
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value33333435363636363636373737363637394041414040414140403939393939393939394040403940404345454545
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

fcn:StockOptionsAndRestrictedShares


Antidilutive
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-30
Value2000.08000.083000.054000.012000.01000.025000.049000.04000.044000.0613000.02328000.01947000.0903000.0753000.01374000.02657000.01360000.01524000.02173000.02741000.03637000.03177000.04586000.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1.881.931.631.411.331.560.81.651.751.690.631.191.181.061.810.86-0.130.350.170.530.650.750.250.250.530.590.020.570.430.46-0.18-1.290.60.6-2.150.560.190.461.00.730.420.50.20.440.550.31
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1.771.841.571.351.271.490.761.591.691.640.611.141.141.041.780.85-0.130.340.170.520.640.730.250.250.520.570.020.550.420.45-0.18-1.290.580.58-2.150.550.180.430.930.70.40.480.190.430.520.29
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:AllocatedShareBasedCompensationExpense


Allocated
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value5.0759.5885.2414.8668.9345.8055.2577.6755.3985.5855.9683.1312.4886.6814.864.7786.6624.5714.3686.9423.8066.3219.0765.4217.2669.9336.6547.078107.149.142107.9327.257
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.71.40.80.81.51.00.91.41.11.11.20.70.61.51.11.01.41.01.01.60.81.42.11.31.82.41.71.82.61.72.32.92.32.1

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:IncomeStatementLocation

us-gaap:CostOfSales


Allocated
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value2.6665.0652.4042.1415.7232.3272.5595.2432.4592.4273.7791.351.1835.8382.2432.2793.8482.2632.2343.8992.6543.5485.8222.5323.7426.9573.4753.025
Percentage of AllocatedShareBasedCompensationExpense52.552.845.944.064.140.148.768.345.643.563.343.147.587.446.247.757.849.551.156.269.756.164.146.751.570.052.242.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.40.70.40.40.90.40.41.00.50.50.80.30.31.30.50.50.80.50.50.90.60.81.40.60.91.70.90.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CostOfSales0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:SellingGeneralAndAdministrativeExpenses


Allocated
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-31
Value2.4094.5232.8372.7253.2113.4782.6982.4322.9393.1582.1891.7811.2090.8432.6172.4992.7092.3082.1343.043
Percentage of AllocatedShareBasedCompensationExpense47.547.254.156.035.959.951.331.754.456.536.756.948.612.653.852.340.750.548.943.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.70.50.40.50.60.40.40.60.60.40.40.30.20.60.50.60.50.50.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:SellingGeneralAndAdministrativeExpenses0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value685990715725524359671340194968435.01821-11.138177.738296.034-6.92353.204-18.138-0.022422-6.751-33.506118.171-85.47435-3.2133136131734
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 RevenueFromContractWithCustomerExcludingAssessedTax9.68.614.411.59.54.28.77.49.912.32.77.83.99.914.79.71.14.8-2.53.91.76.31.4-1.57.80.7-4.3-0.05.55.4-1.6-8.12.82.0-21.49.2-0.87.99.33.34.39.4

Cost Of Revenue

us-gaap:CostOfRevenue

us-gaap:CostOfRevenue


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value490468440417413402418380386349340336330321307294304309308293303305299301291279281293295274268255259258245241248245233249247219207206209197
Percentage of CostOfRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax69.068.370.367.067.966.569.564.263.763.367.465.664.564.565.865.768.469.269.767.065.965.067.766.264.964.566.365.065.164.564.661.562.663.561.462.662.662.159.660.461.760.658.459.859.956.4

Costs And Expenses

us-gaap:CostsAndExpenses

us-gaap:CostsAndExpenses


Costs
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value627597555549542531554510518464460455450435433401444419431402415418418409401384403404415385404450354361454339369354322354364313324299297318
Percentage of CostsAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax88.287.188.788.389.287.992.086.285.584.291.188.987.987.592.689.5100.093.997.692.090.488.994.690.089.588.994.889.791.490.697.2108.685.588.9113.987.993.289.682.585.690.986.691.186.485.190.9

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value77846264627339808582316457542841-4.629215.2693141481716353510342728-1.28-47.2614633-72.1493411295445243515324022
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.912.39.910.410.312.16.613.514.215.06.212.511.310.96.19.2-1.04.91.27.39.110.34.13.67.98.22.57.76.06.7-0.3-11.411.38.2-18.19.12.87.314.011.06.29.74.49.411.66.5

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value14206.422141416101921197.834191415-38.4589.1970.5277.877-1.8321015187.5776.17713119.7021210105.8593.36239.87113123.5271014167.823136.76512158.694
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.13.01.02.32.42.71.83.33.53.61.63.92.83.1-8.22.00.11.8-0.42.33.43.91.71.43.12.72.32.72.32.41.40.85.62.43.43.20.92.73.83.92.03.71.93.54.42.5

us-gaap:IncomeTaxExpenseBenefit us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems


Income
Period End2021-06-302021-03-312020-06-302020-03-312019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value14201416197.834191415-38.4589.1970.5277.877
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.13.02.42.73.61.63.92.83.1-8.22.00.11.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:MaterialReconcilingItems0.00.00.00.00.00.00.00.00.00.00.00.00.0

Income Taxes Paid Net

us-gaap:IncomeTaxesPaidNet

us-gaap:IncomeTaxesPaidNet


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value117.2832132121621138.1768.644254.187141.688-3.8133.4061.094.2464.361113.6690.8244.2687.2652.9876.1342.7468.8374.70911115.111116.97140.7385.008265.2996.42710165.113-0.2726.5221
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.61.13.55.22.12.73.52.21.31.65.00.82.80.3-0.80.80.21.01.02.60.80.21.01.60.71.40.62.01.02.62.81.22.81.73.70.21.36.61.41.62.54.71.4-0.11.96.2

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value5.2944.7974.6365.1515.1574.8614.8354.8324.7934.7467.0767.2466.5836.2446.5476.766.255.8015.9836.3046.3036.2296.2311112121212121212121312131315151414141515111111
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.70.70.70.80.80.80.80.80.80.91.41.41.31.31.41.51.41.31.41.41.41.31.42.62.82.92.92.82.83.03.13.13.23.13.33.43.83.83.73.53.64.24.43.43.33.2

us-gaap:InterestExpense us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems


Interest
Period End2021-06-302021-03-312020-06-302020-03-312019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value5.2944.7975.1574.8614.7467.0767.2466.5836.2446.5476.766.255.801
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.70.70.80.80.91.41.41.31.31.41.51.41.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:MaterialReconcilingItems0.00.00.00.00.00.00.00.00.00.00.00.00.0

Interest Expense Debt

us-gaap:InterestExpenseDebt us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:InterestExpenseDebt

fcn:ConvertibleNoteDue2023, us-gaap:SeniorNotes


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-30
Value3.9613.9293.8983.8673.8363.8063.7773.7473.7183.6893.6621.6580.00.00.0
Percentage of InterestExpenseDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.60.60.60.60.60.60.60.60.60.70.70.30.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax fcn:ConvertibleNoteDue2023 us-gaap:SeniorNotes0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value1.03.8540.6373.4470.5323.1360.3423.7970.0173.458.2590.408111.08710
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.60.10.60.10.50.10.60.00.61.60.12.30.22.3

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value62645550485629606462234443386632-5.156147.101212630101021230.921221718-7.139-50.6212323-85.877227.74718392916218.855202514
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.89.48.98.17.99.44.810.210.711.44.78.68.57.814.37.2-1.23.11.65.05.86.42.32.34.85.50.25.03.84.3-1.7-12.25.75.8-21.55.92.04.710.27.14.26.02.55.87.24.1

us-gaap:NetIncomeLoss us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems


Net
Period End2021-06-302021-03-312020-06-302020-03-312019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value6264485662234443386632-5.15614
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.89.47.99.411.44.78.68.57.814.37.2-1.23.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:MaterialReconcilingItems0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value6264504856606462234443386632-5.156147.101212630101021230.921221718-7.139-50.6212323-85.877227.7471839251621
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.086.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.89.48.17.99.410.210.711.44.78.68.57.814.37.2-1.23.11.65.05.86.42.32.34.85.50.25.03.84.3-1.7-12.25.75.8-21.55.92.04.710.26.14.26.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Nonoperating Income Expense

us-gaap:NonoperatingIncomeExpense

us-gaap:NonoperatingIncomeExpense


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-6.206-3.763-8.927-8.491-2.9550.156-8.515-1.859-2.184-4.587-13.2457.185-4.109-8.044-6.095-5.657-4.658-5.196-5.412-3.091-2.178-3.672-5.839-29.258-11.523-12.505-11.283-11.62-11.46-11.652-12.73-11.662-13.458-11.778-16.818-11.624-15.558-11.922-13.6-13.833-11.577-13.31-15.98-14.538
Percentage of NonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.9-0.5-1.4-1.4-0.50.0-1.4-0.3-0.4-0.8-2.61.4-0.8-1.6-1.3-1.3-1.0-1.2-1.2-0.7-0.5-0.8-1.3-6.4-2.6-2.9-2.7-2.6-2.5-2.7-3.1-2.8-3.2-2.9-4.2-3.0-3.9-3.0-3.5-3.3-2.9-3.7-4.5-4.2

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value838870736573488288874457616234470.0292710354452234547472146384011-35.5996045-55.3314626406859364831465131
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.812.911.311.710.812.18.013.814.515.88.911.112.112.57.410.50.06.12.48.09.611.15.410.010.511.15.210.38.69.42.8-8.614.511.1-13.912.16.810.417.514.49.113.48.913.614.99.1

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

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value5.807-5.24234219.568-31.10223-16.633-4.8155.223-10.185-4.18-23.683101.88611107.37-18.239-4.478-18.809-0.358-4.315-17.22913-20.482-19.059-22.5427.6944.7280.38817-11.714-15.5090.40312-10.9612-3.684-15.8731.836
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.8-0.85.53.41.6-5.13.9-2.8-0.80.9-2.0-0.8-4.62.10.42.52.31.7-4.1-1.0-4.1-0.1-1.0-3.83.0-4.7-4.5-5.01.71.10.14.1-2.8-3.80.13.3-2.83.3-0.9-3.80.5

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value5.807-5.242219.568-31.102-16.633-4.8155.223-10.185-4.18-23.683101.88611107.37-18.239-4.478-18.809-0.358-4.315-17.22813-20.482-19.059-22.5427.6944.7280.38817-11.714-15.5090.40312
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.8-0.83.41.6-5.1-2.8-0.80.9-2.0-0.8-4.62.10.42.52.31.7-4.1-1.0-4.1-0.1-1.0-3.83.0-4.7-4.5-5.01.71.10.14.1-2.8-3.80.13.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value5.807-5.24234219.568-31.10223-16.633-4.8155.223-10.185-4.18-23.683101.88611107.37-18.239-4.478-18.809-0.358-4.315-17.22913-20.482-19.059-22.5427.6944.7280.38817-11.714-15.5090.40312-10.9612-3.684-15.8731.836
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.8-0.85.53.41.6-5.13.9-2.8-0.80.9-2.0-0.8-4.62.10.42.52.31.7-4.1-1.0-4.1-0.1-1.0-3.83.0-4.7-4.5-5.01.71.10.14.1-2.8-3.80.13.3-2.83.3-0.9-3.80.5

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value711686626622607604602593606551504513512497467448444446441438460470442455449432425451454425415414414407399386396395390413400361356346349350
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementBusinessSegments

fcn:CorporateFinanceRestructuring


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value2302262192362462071811911901601441351411421301281171051131101321271111131091069310010493929396991089396
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax32.533.035.138.040.534.430.132.331.329.228.726.427.628.727.928.526.423.725.725.328.727.025.224.924.324.621.922.222.922.122.322.723.324.327.224.124.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax32.533.035.138.040.534.430.132.331.329.228.726.427.628.727.928.526.423.725.725.328.727.025.224.924.324.621.922.222.922.122.322.723.324.327.224.124.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax fcn:CorporateFinanceRestructuring100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcn:EconomicConsulting


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value183169160154151132153141155142128139133133121111124139129122118130118114108106106120117106108113111115959699
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax25.824.725.624.924.921.925.423.925.725.825.427.126.026.725.924.927.931.229.328.025.627.826.825.124.224.525.026.725.825.126.027.326.828.324.025.025.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax25.824.725.624.924.921.925.423.925.725.825.427.126.026.725.924.927.931.229.328.025.627.826.825.124.224.525.026.725.825.126.027.326.828.324.025.025.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax fcn:EconomicConsulting100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcn:ForensicAndLitigationConsulting


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value15015012711910614715014214513813212613312812011811111110511511811911611612612312112111912111411310510097100106
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.222.020.319.117.524.425.024.124.125.226.224.726.125.725.826.425.125.023.926.325.725.326.425.528.128.528.527.026.228.527.627.325.424.724.326.026.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.222.020.319.117.524.425.024.124.125.226.224.726.125.725.826.425.125.023.926.325.725.326.425.528.128.528.527.026.228.527.627.325.424.724.326.026.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax fcn:ForensicAndLitigationConsulting100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcn:StrategicCommunications


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value67606052565866595957585557525448464350454945485543424646534346435045504546
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.58.89.78.59.49.711.010.19.810.511.510.711.210.611.610.710.49.811.410.510.89.611.012.29.79.710.910.311.710.211.310.412.211.212.611.911.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.58.89.78.59.49.711.010.19.810.511.510.711.210.611.610.710.49.811.410.510.89.611.012.29.79.710.910.311.710.211.310.412.211.212.611.911.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax fcn:StrategicCommunications100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcn:Technology


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value78795858475851575551415646404042454643444148465561545862606053515146475047
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.111.69.49.47.79.78.69.69.29.38.311.19.18.28.79.410.210.39.810.19.110.310.512.213.812.613.713.813.414.112.912.312.311.511.913.012.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.111.69.49.47.79.78.69.69.29.38.311.19.18.28.79.410.210.39.810.19.110.310.512.213.812.613.713.813.414.112.912.312.311.511.913.012.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax fcn:Technology100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value711686626622607604602593606551504513512497467448444446441438460470442455449432425451454425415414414407399386396395390413400361356346349350
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Selling General And Administrative Expense

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:SellingGeneralAndAdministrativeExpense


Selling
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1331261121221261261331271291131181171171121111031071071161061081031161051091021151021071081079496969488921029298948888868284
Percentage of SellingGeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax18.818.417.919.620.921.022.121.621.420.523.422.923.022.523.823.124.124.026.424.223.522.026.323.124.323.627.322.723.625.525.822.823.223.723.623.023.326.023.823.823.724.524.824.923.624.1

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value29382778277727942704263727832690257124642379262822572276225722602224217222252341228722252229229424372371243024142373231223642277227022392275234923742371241123262299224724142077
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value471545359217242180372287200
Percentage of Assets17.019.615.19.610.98.115.312.18.8
Percentage of Assets17.019.615.19.610.98.115.312.18.8
Percentage of Assets us-gaap:CorporateNonSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value230622382019204019822048205820772074
Percentage of Assets83.080.484.990.489.191.984.787.991.2
Percentage of Assets83.080.484.990.489.191.984.787.991.2
Percentage of Assets us-gaap:OperatingSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, fcn:CorporateFinanceRestructuring


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value925814707726681671668669653
Percentage of Assets33.329.329.832.230.630.127.528.328.7
Percentage of Assets33.329.329.832.230.630.127.528.328.7
Percentage of Assets us-gaap:OperatingSegments fcn:CorporateFinanceRestructuring100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, fcn:EconomicConsulting


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value553543516501496498493487477
Percentage of Assets19.919.521.722.222.322.420.320.621.0
Percentage of Assets19.919.521.722.222.322.420.320.621.0
Percentage of Assets us-gaap:OperatingSegments fcn:EconomicConsulting100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, fcn:ForensicAndLitigationConsulting


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value412462412401400437430444397
Percentage of Assets14.916.617.317.818.019.617.718.817.5
Percentage of Assets14.916.617.317.818.019.617.718.817.5
Percentage of Assets us-gaap:OperatingSegments fcn:ForensicAndLitigationConsulting100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, fcn:StrategicCommunications


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value214217212215214239250267342
Percentage of Assets7.77.88.99.59.610.710.311.315.0
Percentage of Assets7.77.88.99.59.610.710.311.315.0
Percentage of Assets us-gaap:OperatingSegments fcn:StrategicCommunications100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, fcn:Technology


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value200200171195189200214208203
Percentage of Assets7.27.27.28.78.59.08.88.88.9
Percentage of Assets7.27.27.28.78.59.08.88.88.9
Percentage of Assets us-gaap:OperatingSegments fcn:Technology100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value14491361137713191225116812941229115210621030127798110391065112910859761018111010841043108111311273125413271301126512351322124111911181120711761223122113041274127112421247973
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets49.349.049.647.245.344.346.545.744.843.143.348.643.545.647.250.048.844.945.747.447.446.948.549.352.352.954.653.953.353.455.954.552.552.753.150.151.551.554.154.855.355.351.746.8

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value29382778277727942704263727832690257124642379262822572276225722602224217222252341228722252229229424372371243024142373231223642277227022392275234923742371241123262299224724142077
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value148914161400147414791468148914611419140213481351127512371191113011391196120712311203118111471162116311171102111311071077104210361079105810681173115011491106105110281005116711041127978
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets50.751.050.452.854.755.753.554.355.256.956.751.456.554.452.850.051.255.154.352.652.653.151.550.747.747.145.446.146.746.644.145.547.547.346.949.948.548.545.945.244.744.748.353.20.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value-105.87-111.677-106.435-141.051-162.381-171.949-140.847-164.042-147.409-142.594-147.817-137.632-133.452-109.769-120.215-122.101-133.335-143.509-150.879-132.64-128.162-109.353-108.995-104.68-87.452-100.75-80.268-61.209-38.667-46.361-51.089-51.477-68.592-56.878-41.369-41.772-54.503-43.543-56.392-52.708-36.835-38.671-53.49-47.539-78.9758.849
Percentage of StockholdersEquity-7.1-7.9-7.6-9.6-11.0-11.7-9.5-11.2-10.4-10.2-11.0-10.2-10.5-8.9-10.1-10.8-11.7-12.0-12.5-10.8-10.7-9.3-9.5-9.0-7.5-9.0-7.3-5.5-3.5-4.3-4.9-5.0-6.4-5.4-3.9-3.6-4.7-3.8-5.1-5.0-3.6-3.8-4.6-4.3-7.00.9
Percentage of Assets-3.6-4.0-3.8-5.0-6.0-6.5-5.1-6.1-5.7-5.8-6.2-5.2-5.9-4.8-5.3-5.4-6.0-6.6-6.8-5.7-5.6-4.9-4.9-4.6-3.6-4.2-3.3-2.5-1.6-2.0-2.2-2.3-3.0-2.5-1.8-1.8-2.3-1.8-2.3-2.3-1.6-1.7-2.2-2.30.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value4.2746122170216240242284299315280261266273325387416429418404400421415404393385380374362349359349367387400396383365338334532535733617
Percentage of StockholdersEquity0.33.28.311.614.516.517.120.322.223.422.021.222.324.228.632.434.534.934.834.234.936.335.736.235.734.634.334.734.833.733.333.134.433.134.834.534.734.832.933.245.748.565.163.1
Percentage of Assets0.11.74.56.47.88.99.411.612.612.012.411.511.812.114.617.818.718.418.318.218.018.417.117.116.216.016.016.215.315.315.815.616.216.516.816.715.915.714.714.922.125.80.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value0.3430.3420.3450.360.3670.3710.3740.3760.3760.380.3810.3840.3820.3770.3770.3790.3950.4130.420.4230.420.4140.4120.4190.4180.4150.4120.410.4090.4090.4050.4010.4050.4020.4080.4140.420.420.4150.410.4160.420.4610.470.5090.489
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value159015271506156815181470141313841323125911961173112810851045978946951941933912885855845834813789788765748730737788764741827804796778738726709687615472351
Percentage of StockholdersEquity106.8107.9107.6106.4102.7100.194.994.793.389.888.786.888.587.787.786.683.179.577.975.875.875.074.572.771.772.871.670.869.169.570.171.273.072.369.470.569.969.370.370.270.670.658.955.741.935.9
Percentage of Assets54.155.054.256.156.155.750.851.551.551.150.344.650.047.746.343.342.643.842.339.939.939.838.436.834.334.332.532.732.332.430.932.434.734.232.635.233.933.632.331.731.631.628.529.60.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1213115111291175112710661178109610199219651206807815794788777737783864811744741788904847884856785731803746664651674692724719770677632593788499
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets41.341.440.742.141.740.442.440.739.637.440.645.935.835.835.234.935.033.935.236.935.533.533.334.437.135.836.435.533.131.634.032.829.329.129.629.530.530.332.029.127.526.432.724.1

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value2562332943043042233692581891793125051161521891571381202162251821141491042392252831789477205147921001561261651822641289811238433112380118191360
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.78.410.610.911.28.513.39.67.47.313.119.25.26.78.47.06.25.69.79.68.05.16.74.69.89.511.77.44.03.38.76.54.14.56.95.47.07.711.05.54.35.015.90.00.00.05.70.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value256233294304304223369258189179312505116152189216
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.78.410.610.911.28.513.39.67.47.313.119.25.26.78.49.7

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value846798711762714736693739743656554623607583522547553526474547547553499554549513485565579545476494480470429485472448429469446396326287
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets28.828.725.627.326.427.924.927.528.926.623.323.726.925.623.224.224.924.221.323.423.924.922.424.222.521.620.023.424.423.620.121.721.121.018.920.619.918.917.820.219.417.613.513.8

Prepaid Expense And Other Assets Current

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PrepaidExpenseAndOtherAssetsCurrent


Prepaid
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value7883887475748065575669455450555958606058474555555351605452496140404350353538303028
Percentage of PrepaidExpenseAndOtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.73.03.22.72.82.82.92.42.22.32.91.72.42.22.52.62.62.82.72.52.12.02.52.42.22.22.52.22.22.12.61.81.81.92.21.51.51.61.31.31.2

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value246260232212202235221218193179164
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.99.49.89.49.110.69.19.28.57.46.8

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

fcn:ComputerEquipmentandSoftware


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value10711910610094
Percentage of PropertyPlantAndEquipmentGross43.846.045.747.146.8
Percentage of Assets3.94.34.54.44.3
Percentage of Assets fcn:ComputerEquipmentandSoftware0.00.00.00.00.0

us-gaap:ConstructionInProgress


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value154.3592.7540.8062.349
Percentage of PropertyPlantAndEquipmentGross6.21.71.20.41.2
Percentage of Assets0.60.20.10.00.1
Percentage of Assets us-gaap:ConstructionInProgress0.00.00.00.00.0

us-gaap:FurnitureAndFixtures


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value2636343335
Percentage of PropertyPlantAndEquipmentGross10.614.115.015.917.7
Percentage of Assets0.91.31.51.51.6
Percentage of Assets us-gaap:FurnitureAndFixtures0.00.00.00.00.0

us-gaap:LeaseholdImprovements


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value9799887769
Percentage of PropertyPlantAndEquipmentGross39.438.338.136.634.3
Percentage of Assets3.53.63.73.53.1
Percentage of Assets us-gaap:LeaseholdImprovements0.00.00.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value14416714713714016013913812410591
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.26.06.26.16.37.25.75.95.54.43.8

Amortization Of Intangible Assets

us-gaap:AmortizationOfIntangibleAssets

us-gaap:AmortizationOfIntangibleAssets


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2.8542.8012.9472.7952.3142.3312.3142.1251.8521.8611.8651.9752.0522.272.7662.8822.4222.4932.2652.8452.592.6062.8072.93.0073.0124.0553.3983.4524.6165.6615.7765.9535.5645.6345.7665.495.5175.5765.8435.4985.4545.6816.2865.8526.091
Percentage of AmortizationOfIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1171001019591929392878484827575757060596166687174778079828383857966656668666871747571707380
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.03.63.73.43.43.53.43.43.43.43.63.13.33.33.33.12.72.72.82.83.03.23.43.43.33.33.43.53.53.73.32.92.93.03.02.82.93.03.13.23.13.23.03.9

us-gaap:PropertyPlantAndEquipmentNet us-gaap:StatementGeographical

country:GB


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value19161414155.03321165.033
Percentage of PropertyPlantAndEquipmentNet18.817.516.619.724.86.726.721.47.4
Percentage of Assets0.70.60.60.70.70.20.90.70.2
Percentage of Assets country:GB0.00.00.00.00.00.00.00.00.0

country:US


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value646359523947505053
Percentage of PropertyPlantAndEquipmentNet63.967.970.570.264.063.062.063.779.0
Percentage of Assets2.32.32.52.31.82.12.12.12.4
Percentage of Assets country:US0.00.00.00.00.00.00.00.00.0

fcn:AllOtherCountries


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value1713107.6056.96
Percentage of PropertyPlantAndEquipmentNet17.314.612.910.111.3
Percentage of Assets0.60.50.50.30.3
Percentage of Assets fcn:AllOtherCountries0.00.00.00.00.0

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value12401233123412231196119112021197117211741172117511981208120412041187118311801188118911981198119912081201121112131225122112181194126312521260132713131320130912951305129512691195
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets42.244.444.543.844.245.243.244.545.647.749.344.753.153.153.453.353.454.553.050.752.053.853.852.349.650.749.950.351.652.851.552.455.655.955.456.555.355.754.355.756.857.752.657.6

us-gaap:Goodwill us-gaap:StatementBusinessSegments

fcn:CorporateFinanceRestructuring


Goodwillus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-312009-12-31
Value504504506501478475478480451451450451452453454454442442440442441443441440444443446448451450449451445430469438437437436436434387
Percentage of Goodwill40.740.941.041.040.039.939.840.138.538.438.538.437.737.637.837.837.237.437.337.337.237.036.836.736.736.936.836.936.936.936.937.835.234.437.233.033.333.233.333.734.232.4
Percentage of Assets17.218.118.218.017.718.017.217.817.618.319.017.220.019.920.120.119.920.419.818.919.319.919.819.218.218.718.418.619.019.519.019.819.619.220.618.718.418.518.118.718.018.6
Percentage of Assets fcn:CorporateFinanceRestructuring0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.067.30.00.00.068.30.069.70.0

fcn:EconomicConsulting


Goodwillus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-312009-12-31
Value269269269268268268268268268268268268268269268268268268268268268269269269269269269263263263263248249247247234229229229214202196
Percentage of Goodwill21.721.821.822.022.422.522.322.422.922.922.922.922.422.322.322.322.622.722.722.622.622.522.522.522.322.422.321.721.521.621.620.819.719.719.717.717.517.417.516.516.016.4
Percentage of Assets9.29.79.79.69.910.29.710.010.410.911.310.211.911.811.911.912.112.412.111.511.712.112.111.811.111.411.110.911.111.411.110.911.011.010.910.09.79.79.59.28.49.5
Percentage of Assets fcn:EconomicConsulting0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.051.90.00.00.052.40.056.30.0

fcn:ForensicAndLitigationConsulting


Goodwillus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-312009-12-31
Value239233233231230230232230231231231232232234233233232231230232232234235235237235238240242242241231229230198199197199198198197194
Percentage of Goodwill19.318.918.918.919.219.319.319.219.719.719.819.719.419.519.419.419.619.519.519.619.619.619.619.719.619.619.719.819.819.819.819.418.218.415.815.015.115.115.115.315.516.2
Percentage of Assets8.18.48.48.38.58.78.38.69.09.49.78.810.310.310.410.310.410.610.49.910.210.610.610.39.79.99.89.910.210.510.210.110.110.38.78.58.38.48.28.58.29.3
Percentage of Assets fcn:ForensicAndLitigationConsulting0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.056.00.00.00.054.90.058.80.0

fcn:StrategicCommunications


Goodwillus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-312009-12-31
Value130130129125122121126122124126124126127132129129126124122126128133134135139135139144149146145144221226226336329335327329317299
Percentage of Goodwill10.510.510.510.210.210.210.510.210.610.710.610.810.610.910.810.710.710.510.410.710.811.111.211.311.511.311.511.912.212.012.012.117.518.118.025.425.125.425.025.425.025.1
Percentage of Assets4.44.74.74.54.54.64.54.54.85.15.24.85.65.85.75.75.75.75.55.45.66.06.05.95.75.75.76.06.36.46.26.49.810.19.914.313.914.113.614.113.114.4
Percentage of Assets fcn:StrategicCommunications0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.066.10.00.00.069.60.069.00.0

fcn:Technology


Goodwillus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-312009-12-31
Value969696969696969696969696117117117117117117117117117117117117117117117118118118118118117117118118117118117117117118
Percentage of Goodwill7.87.97.87.98.18.18.08.18.28.28.38.29.89.89.89.89.99.910.09.99.99.89.89.89.89.89.79.79.69.79.79.99.39.49.48.99.08.99.09.19.39.9
Percentage of Assets3.33.53.53.53.63.73.53.63.83.94.13.75.25.25.25.25.35.45.35.05.15.35.35.14.85.04.94.95.05.15.05.25.25.35.25.05.05.04.95.14.95.7
Percentage of Assets fcn:Technology0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.058.10.00.00.055.20.055.00.0

Indefinite Lived Intangible Assets Excluding Goodwill

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill


Indefinite
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value130116116117116107
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill100.0100.0100.0100.0100.0100.0
Percentage of Assets4.74.34.44.24.34.5

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass

us-gaap:TradeNames


Indefinite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312017-12-312016-12-312015-12-312014-12-312012-06-302011-12-31
Value5.15.15.15.15.15.15.15.15.15.65.65.65.65.65.6
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill0.00.00.03.94.44.44.34.44.80.00.00.00.00.00.0
Percentage of Assets0.20.20.20.20.20.20.20.20.20.20.30.30.20.20.2
Percentage of Assets us-gaap:TradeNames0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value3738414333353841303234363942444648495254576163677072778086889792101101104104107114118124132131134175
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.31.41.51.61.21.41.41.51.21.31.51.41.71.92.02.12.22.32.32.32.52.82.92.92.93.03.23.43.63.84.14.14.54.54.64.44.54.84.95.45.75.85.68.5

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:FiniteLivedIntangibleAssetsNet


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312017-12-312016-12-312015-12-31
Value323336382830333629384658
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.11.21.31.41.11.21.21.31.21.72.12.6

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass

fcn:AcquiredSoftware


Finite
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value1.11.1571.2041.3251.3541.489
Percentage of FiniteLivedIntangibleAssetsNet2.94.13.94.03.75.0
Percentage of Assets0.00.00.00.00.10.1
Percentage of Assets fcn:AcquiredSoftware0.00.00.00.00.00.0

us-gaap:ComputerSoftwareIntangibleAsset


Finite
Period End2021-06-302021-03-312020-12-312019-12-312018-12-312017-12-312016-12-31
Value0.7910.8851.0331.3251.4891.8811.879
Percentage of FiniteLivedIntangibleAssetsNet2.42.72.84.05.04.94.0
Percentage of Assets0.00.00.00.00.10.10.1
Percentage of Assets us-gaap:ComputerSoftwareIntangibleAsset0.00.00.00.00.00.00.0

us-gaap:CustomerRelationships


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312017-12-312016-12-31
Value2424262818202224283644
Percentage of FiniteLivedIntangibleAssetsNet74.072.872.473.066.467.768.468.595.095.195.7
Percentage of Assets0.80.90.91.00.70.80.80.91.21.62.0
Percentage of Assets us-gaap:CustomerRelationships0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TradeNames


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312017-12-312016-12-31
Value7.6628.1179.0419.2938.4178.6799.202100.00.00.1
Percentage of FiniteLivedIntangibleAssetsNet23.524.524.824.129.528.427.627.70.00.00.2
Percentage of Assets0.30.30.30.30.30.30.30.40.00.00.0
Percentage of Assets us-gaap:TradeNames0.00.00.00.00.00.00.00.00.00.00.0

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2231481561531521491591521551460.0
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets7.65.35.65.55.65.75.75.76.05.90.0

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value5047513539364032303037374543404342424356474243485354535361545764646567616052557064576055
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.71.71.91.31.41.41.51.21.21.21.61.42.01.91.81.91.91.92.02.42.11.92.02.12.22.32.22.22.62.42.42.92.92.92.92.62.52.22.33.02.82.62.52.7

Accounts Payable And Accrued Liabilities Current

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value15616717016416317015815813812810411693105941088587879794958910190102999996112126107859798999612013210810510210581
Percentage of AccountsPayableAndAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.36.06.15.96.06.55.75.95.45.24.44.44.24.74.24.83.84.03.94.14.14.34.04.43.74.34.14.14.04.95.44.73.84.44.34.24.15.15.54.64.64.64.43.9

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value13181714159.9379.11914101411
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.70.70.60.70.40.40.60.40.60.5

Accrued Income Taxes Current

us-gaap:AccruedIncomeTaxesCurrent

us-gaap:AccruedIncomeTaxesCurrent


Accrued
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value143513129.23117129.323111411
Percentage of AccruedIncomeTaxesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.51.30.60.50.40.80.50.40.50.60.5

Accrued Liabilities Current

us-gaap:AccruedLiabilitiesCurrent

us-gaap:AccruedLiabilitiesCurrent


Accrued
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value6546524543465353444126
Percentage of AccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.31.72.22.01.92.12.22.22.01.71.1

Contract With Customer Liability Current

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:ContractWithCustomerLiabilityCurrent


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value364244464040363445504446
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.31.51.61.71.51.51.31.31.82.01.92.1

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value562495670608517451612546463391482737352343410366314293378365325287347334314291367345308299384304261269304367415408497446293278289406
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets19.117.824.121.819.117.122.020.318.015.920.328.115.615.118.216.214.113.517.015.614.212.915.614.612.912.315.114.313.012.916.313.411.512.013.415.617.517.220.619.212.812.412.019.6

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value353842413936350.0
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets1.21.41.51.51.51.41.30.0

Long Term Debt

us-gaap:LongTermDebt

us-gaap:LongTermDebt


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-312011-09-302011-06-302010-12-31
Value391458286308315328275273290268265263371441396465485370475500507500520711711711711717737717717723797796792
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets13.316.510.311.011.712.49.910.111.310.911.210.016.519.417.620.621.816.620.321.922.822.422.729.230.029.329.430.231.930.331.531.834.334.632.8

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent

us-gaap:LongTermDebtNoncurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-312011-09-302011-06-302010-12-31
Value391458286308315328275273290268265263371441396461480402365470495501494520700700700705711711711711717645790785
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets13.316.510.311.011.712.49.910.111.310.911.210.016.519.417.620.421.618.516.420.121.622.622.222.728.729.528.829.230.030.730.131.231.527.734.432.5

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxLiabilitiesNet


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value169157158150155152151159155163155153134129124173
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.85.75.75.45.75.85.45.96.16.66.55.85.95.75.57.8

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value95951009075737878656612712312312413412011410210010310210399989795989896828985838380727076758687858053
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.33.53.63.22.82.82.82.92.52.75.34.75.55.55.95.35.14.74.54.44.54.74.54.34.04.04.14.14.13.63.83.83.73.73.53.13.03.23.13.73.83.83.32.6

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2301531611611611631761711771730.0
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets7.85.55.85.86.06.26.36.46.97.10.0

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value45344137
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0100.0100.0100.0
Percentage of Assets1.61.21.51.4

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value40293431
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0100.0100.0100.0
Percentage of Assets1.41.11.21.1

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value34242927
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0100.0100.0100.0
Percentage of Assets1.20.91.11.0

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value24
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.9

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-31
Value63
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets2.3

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value265191204203201199212203206202
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.06.97.47.37.47.67.67.68.08.2

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2021-06-302021-03-312020-12-312020-10-262020-09-30
Value348228243145244
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0100.0100.0100.0100.0
Percentage of Assets11.98.28.80.08.7

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue us-gaap:SubsequentEventType

us-gaap:SubsequentEvent


Lessee
Period End2020-10-26
Value145
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0
Percentage of Assets0.0
Percentage of Assets us-gaap:SubsequentEvent0.0

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value83363940
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0100.0100.0100.0
Percentage of Assets2.81.31.41.4

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value148914161400147414791468148914611419140213481351127512371191113011391196120712311203118111471162116311171102111311071077104210361079105810681173115011491106105110281005116711041127978
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets50.751.050.452.854.755.753.554.355.256.956.751.456.554.452.850.051.255.154.352.652.653.151.550.747.747.145.446.146.746.644.145.547.547.346.949.948.548.545.945.244.744.748.353.20.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value-105.87-111.677-106.435-141.051-162.381-171.949-140.847-164.042-147.409-142.594-147.817-137.632-133.452-109.769-120.215-122.101-133.335-143.509-150.879-132.64-128.162-109.353-108.995-104.68-87.452-100.75-80.268-61.209-38.667-46.361-51.089-51.477-68.592-56.878-41.369-41.772-54.503-43.543-56.392-52.708-36.835-38.671-53.49-47.539-78.9758.849
Percentage of StockholdersEquity-7.1-7.9-7.6-9.6-11.0-11.7-9.5-11.2-10.4-10.2-11.0-10.2-10.5-8.9-10.1-10.8-11.7-12.0-12.5-10.8-10.7-9.3-9.5-9.0-7.5-9.0-7.3-5.5-3.5-4.3-4.9-5.0-6.4-5.4-3.9-3.6-4.7-3.8-5.1-5.0-3.6-3.8-4.6-4.3-7.00.9
Percentage of Assets-3.6-4.0-3.8-5.0-6.0-6.5-5.1-6.1-5.7-5.8-6.2-5.2-5.9-4.8-5.3-5.4-6.0-6.6-6.8-5.7-5.6-4.9-4.9-4.6-3.6-4.2-3.3-2.5-1.6-2.0-2.2-2.3-3.0-2.5-1.8-1.8-2.3-1.8-2.3-2.3-1.6-1.7-2.2-2.30.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value4.2746122170216240242284299315280261266273325387416429418404400421415404393385380374362349359349367387400396383365338334532535733617
Percentage of StockholdersEquity0.33.28.311.614.516.517.120.322.223.422.021.222.324.228.632.434.534.934.834.234.936.335.736.235.734.634.334.734.833.733.333.134.433.134.834.534.734.832.933.245.748.565.163.1
Percentage of Assets0.11.74.56.47.88.99.411.612.612.012.411.511.812.114.617.818.718.418.318.218.018.417.117.116.216.016.016.215.315.315.815.616.216.516.816.715.915.714.714.922.125.80.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value0.3430.3420.3450.360.3670.3710.3740.3760.3760.380.3810.3840.3820.3770.3770.3790.3950.4130.420.4230.420.4140.4120.4190.4180.4150.4120.410.4090.4090.4050.4010.4050.4020.4080.4140.420.420.4150.410.4160.420.4610.470.5090.489
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value159015271506156815181470141313841323125911961173112810851045978946951941933912885855845834813789788765748730737788764741827804796778738726709687615472351
Percentage of StockholdersEquity106.8107.9107.6106.4102.7100.194.994.793.389.888.786.888.587.787.786.683.179.577.975.875.875.074.572.771.772.871.670.869.169.570.171.273.072.369.470.569.969.370.370.270.670.658.955.741.935.9
Percentage of Assets54.155.054.256.156.155.750.851.551.551.150.344.650.047.746.343.342.643.842.339.939.939.838.436.834.334.332.532.732.332.430.932.434.734.232.635.233.933.632.331.731.631.628.529.60.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value343000.0342000.0345000.0360000.0367000.0371000.0374000.0376000.0376000.0380000.0381000.0384000.0382000.0377000.0377000.0379000.0395000.0413000.0420000.0423000.0420000.0414000.0412000.0419000.0418000.0415000.0412000.0410000.0409000.0409000.0405000.0401000.0405000.0402000.0408000.0414000.0420000.0420000.0415000.0410000.0416000.0420000.0461000.0470000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Additional Paid In Capital

us-gaap:AdditionalPaidInCapital

us-gaap:AdditionalPaidInCapital


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value3535353535353535353535404393385380374362349359349367387400396383365338334532535
Percentage of AdditionalPaidInCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.21.31.31.31.31.31.31.31.41.41.517.116.216.016.016.215.315.315.815.616.216.516.816.715.915.714.714.922.125.8

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


Additional
Period End2021-06-302020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value4.2746122170216240242284299315280261266273325387416429418404400421415393
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.11.74.56.47.88.99.411.612.612.012.411.511.812.114.617.818.718.418.318.218.018.417.116.2

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value159015271506156815181470141313841323125911961173112810851045978946951941933912885855845834813789788765748730737788764741827804796778738726709687615
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets54.155.054.256.156.155.750.851.551.551.150.344.650.047.746.343.342.643.842.339.939.939.838.436.834.334.332.532.732.332.430.932.434.734.232.635.233.933.632.331.731.631.628.529.6

us-gaap:RetainedEarningsAccumulatedDeficit us-gaap:ShareRepurchaseProgram

fcn:TwoThousandSixteenStockRepurchaseProgram


Retained
Period End2021-06-302021-03-312020-12-31
Value4343-117.864
Percentage of RetainedEarningsAccumulatedDeficit2.72.8-7.8
Percentage of Assets1.51.6-4.2
Percentage of Assets fcn:TwoThousandSixteenStockRepurchaseProgram0.00.00.0

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value-105870000.0-111680000.0-106440000.0-141050000.0-162380000.0-171950000.0-140850000.0-164040000.0-147410000.0-142590000.0-147820000.0-137630000.0-133450000.0-109770000.0-120220000.0-122100000.0-133340000.0-143510000.0-150880000.0-132640000.0-128160000.0-109350000.0-109000000.0-104680000.0-87452000.0-100750000.0-80268000.0-61209000.0-38667000.0-46361000.0-51089000.0-51477000.0-68592000.0-56878000.0-41369000.0-41772000.0-54503000.0-43543000.0-56392000.0-52708000.0-36835000.0-38671000.0-53490000.0-47539000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-3.6-4.0-3.8-5.0-6.0-6.5-5.1-6.1-5.7-5.8-6.2-5.2-5.9-4.8-5.3-5.4-6.0-6.6-6.8-5.7-5.6-4.9-4.9-4.6-3.6-4.2-3.3-2.5-1.6-2.0-2.2-2.3-3.0-2.5-1.8-1.8-2.3-1.8-2.3-2.3-1.6-1.7-2.2-2.3

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

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value4.9487.2425.4294.6937.4543.8533.8146.3933.3583.6563.8874.6763.1422.9292.8927.0673.3223.53.2955.9433.2623.4413.8456.7363.9133.7365.6919.503125.4986.991104.8966.667.252107.151139.0056.671
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value4.9487.2425.4294.6937.4543.8533.8146.3933.3583.6563.8874.6763.1422.9292.8927.0673.3223.53.2955.9433.2623.4413.8456.7363.9133.7365.6919.503125.4986.991104.8966.667.252107.151139.0056.671
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value125-166.584186111152-123.56214113147-102.08614412034-69.2123-110.795898421-2.304106700.533-57.8211265926-39.197997349-27.263
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax17.6-24.329.717.925.2-20.423.422.17.9-18.528.623.66.8-13.926.4-26.021.520.45.2-0.626.718.40.1-14.632.514.46.6-10.827.821.414.1-7.8

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-29.553-7.976-9.744-36.491-5.657-8.228-14.844-25.17-10.511-10.081-4.43938-7.878-7.653-11.762-30.8-39.355-9.115-32.634-21.987-42.314-12.907-11.85-23.335-6.58-23.07-16.72-47.278-10.513-40.632-9.253-10.688
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-4.2-1.2-1.6-5.9-0.9-1.4-2.5-4.2-1.7-1.8-0.97.5-1.5-1.5-2.5-7.2-9.5-2.2-7.9-5.4-10.6-3.3-3.0-5.9-1.7-5.6-4.2-13.1-3.0-11.7-2.7-3.1

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-76.918116-204.639-85.363-69.203-0.848-26.791-29.368-24.385-22.767-327.04230-54.83133-81.801136.232-21.2322.064-30.193-35.287-98.821-3.02-1.11816-5.896-23.41-186.067-34.1691733.3361.501
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-10.817.0-32.7-13.7-11.4-0.1-4.4-5.0-4.0-4.1-64.844.9-10.76.8-17.53.11.5-5.10.5-7.4-8.8-25.6-0.8-0.34.3-1.4-5.8-51.4-9.650.01.00.4

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value23-61.532-9.7050.45281-146.31110699.865-132.828-193.798389-35.488-37.917
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.3-9.0-1.50.113.3-24.218.411.71.6-24.1-38.475.9-6.9-7.6

Deferred Income Tax Expense Benefit

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DeferredIncomeTaxExpenseBenefit


Deferred
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-8.389-5.7863.5830.545-7.7963.118-7.7868.752
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value4593-59.69143-18.15960-49.754.799195-58.335313761-21.809-5.462552-70.7899.8175.45452-48.763132941-64.775-7.944471-15.976131147-58.775122821-35.954305345-15.964-0.052.60432
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value125-166.584186111152-123.56214113147-102.08614412034-69.2123-110.795898421-2.304106700.533-57.8211265926-39.197997349-27.263
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax17.6-24.329.717.925.2-20.423.422.17.9-18.528.623.66.8-13.926.4-26.021.520.45.2-0.626.718.40.1-14.632.514.46.6-10.827.821.414.1-7.8

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value62645550485629606462234443386632-5.156147.101212630101021230.921221718-7.139-50.6212323-85.877227.74718392916218.855202514
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.89.48.98.17.99.44.810.210.711.44.78.68.57.814.37.2-1.23.11.65.05.86.42.32.34.85.50.25.03.84.3-1.7-12.25.75.8-21.55.92.04.710.27.14.26.02.55.87.24.1

us-gaap:NetIncomeLoss us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems


Net
Period End2021-06-302021-03-312020-06-302020-03-312019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value6264485662234443386632-5.15614
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.89.47.99.411.44.78.68.57.814.37.2-1.23.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:MaterialReconcilingItems0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value6264504856606462234443386632-5.156147.101212630101021230.921221718-7.139-50.6212323-85.877227.7471839251621
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.086.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.89.48.17.99.410.210.711.44.78.68.57.814.37.2-1.23.11.65.05.86.42.32.34.85.50.25.03.84.3-1.7-12.25.75.8-21.55.92.04.710.26.14.26.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value4.9487.2425.3285.4294.6937.4543.9183.8533.8146.3933.3583.6563.8874.6763.1422.9292.6787.2813.5393.7143.5096.1583.5953.7753.8456.7363.9183.7365.6919.503125.4986.991104.8966.667.252108.309139.1356.8071.916107.2577.394
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-29.553-7.976-9.744-36.491-5.657-8.228-14.844-25.17-10.511-10.081-4.43938-7.878-7.653-11.762-30.8-39.355-9.115-32.634-21.987-42.314-12.907-11.85-23.335-6.58-23.07-16.72-47.278-10.513-40.632-9.253-10.688
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-4.2-1.2-1.6-5.9-0.9-1.4-2.5-4.2-1.7-1.8-0.97.5-1.5-1.5-2.5-7.2-9.5-2.2-7.9-5.4-10.6-3.3-3.0-5.9-1.7-5.6-4.2-13.1-3.0-11.7-2.7-3.1

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value197.9769.203115.6638.236156.36510104.429118.547.68116.8947.2965.8316.08105.6216.3626.7257.1418.6578.8767.459106.59915198.8646.8077.3237.2256.8068.9724.7566.496117.7524.9537.7673.2016.4645.168
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-76.918116-204.639-85.363-69.203-0.848-26.791-29.368-24.385-22.767-327.04230-54.83133-81.801136.232-21.2322.064-30.193-35.287-98.821-3.02-1.11816-5.896-23.41-186.067-34.1691733.3361.501
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-10.817.0-32.7-13.7-11.4-0.1-4.4-5.0-4.0-4.1-64.844.9-10.76.8-17.53.11.5-5.10.5-7.4-8.8-25.6-0.8-0.34.3-1.4-5.8-51.4-9.650.01.00.4

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312014-12-312014-09-302014-06-302014-03-312014-01-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value0.0461777650492711452126150.01412526536180.00.02.9030.00.00.04.3674.417200.028300.00.00.020914
Percentage of PaymentsForRepurchaseOfCommonStock0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.00.0100.00.00.00.0100.0100.0100.0100.00.0100.0100.00.00.00.0100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value538000.0678000.0935000.02258000.02418000.03492000.04340000.04357000.05206000.05171000.04949000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value36.235.9836.540.6340.7938.8938.0337.6835.5834.8433.52
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value137146150118169139247233209196182
Percentage of DeferredTaxLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312014-09-302014-06-302013-12-312013-09-302013-06-302012-12-31
Value131921211813149.89.6109.59.41.9
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcn:AdjustedSegmentEBITDA

fcn:AdjustedSegmentEBITDA


Adjusted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value120125961151051067711912511771949795777558565567768660767571
Percentage of AdjustedSegmentEBITDA100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcn:AdjustedSegmentEBITDA us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems


Adjusted
Period End2021-06-302021-03-312020-06-302020-03-312019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1201251051061177194979577755856
Percentage of AdjustedSegmentEBITDA100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcn:AdjustedSegmentEBITDA us-gaap:StatementBusinessSegments

fcn:CorporateFinanceRestructuring


Adjusted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value4037355676482448503724263534252620101617323118262222
Percentage of AdjustedSegmentEBITDA33.229.836.848.572.446.132.140.340.331.833.828.436.836.533.435.534.018.429.326.342.136.531.535.029.331.3

fcn:EconomicConsulting


Adjusted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value3026312521121719232412231519141215201918152118161511
Percentage of AdjustedSegmentEBITDA25.421.232.522.220.612.022.516.318.620.516.924.615.920.118.516.026.335.934.227.220.224.631.321.820.416.1

fcn:ForensicAndLitigationConsulting


Adjusted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value18297.62213-9.047211727283121212725232213136.331615198.811131922
Percentage of AdjustedSegmentEBITDA14.923.57.911.7-8.620.022.522.622.527.129.923.328.427.030.629.922.124.111.424.520.022.914.617.626.630.7

fcn:StrategicCommunications


Adjusted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value1310118.427108.7769.8771210111110109.852108.0734.8764.2578.4017.5098.446.1087.6278.7175.6315.752
Percentage of AdjustedSegmentEBITDA11.28.312.27.39.58.312.810.68.49.815.711.511.310.313.610.78.37.615.111.111.17.012.711.47.58.0

fcn:Technology


Adjusted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value182110116.435147.8041212122.674117.5085.7322.9735.9735.4217.8045.5587.3985.0357.8235.958101210
Percentage of AdjustedSegmentEBITDA15.317.210.610.36.113.610.110.310.310.83.712.27.76.03.97.99.213.910.010.96.69.09.914.216.214.0

fcn:AmortizationAndImpairmentOfOtherIntangibleAssets

fcn:AmortizationAndImpairmentOfOtherIntangibleAssets


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value2.8542.8012.9472.7952.3142.3312.3142.1251.8521.8611.8651.9752.0522.272.7662.8822.4222.4932.2652.8452.592.6062.8072.93.03.0124.0553.43.54.6165.6615.7765.9535.5645.6385.762
Percentage of AmortizationAndImpairmentOfOtherIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcn:DeferredIncomeTaxExpenseBenefitExcludingCTA

fcn:DeferredIncomeTaxExpenseBenefitExcludingCTA


Deferred
Period End2021-06-302021-03-312020-06-302020-03-31
Value6.193.6123.5830.545
Percentage of DeferredIncomeTaxExpenseBenefitExcludingCTA100.0100.0100.0100.0

fcn:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityRemeasurementGainLoss

fcn:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityRemeasurementGainLoss


Fair
Period End2021-06-30
Value-3095000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityRemeasurementGainLoss100.0

fcn:IncreaseDecreaseInBillingInExcessOfServiceProvided

fcn:IncreaseDecreaseInBillingInExcessOfServiceProvided


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-5.726-1.745-3.1216.0110.0324.2531.792-10.43-5.2875.7926.8192.018-12.309-0.41320-11.2914.1293.505-8.7992.2812.5984.699-0.092-0.074-1.112-4.092-3.4543.2751.1266.632.4250.402-7.5451.765.995.258-1.4432.329-8.58-7.696.0371.615-1.959-4.3162.288-2.144
Percentage of IncreaseDecreaseInBillingInExcessOfServiceProvided100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcn:InterestAndOtherIncomeExpenseNet

fcn:InterestAndOtherIncomeExpenseNet


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value-0.9121.034-4.291-3.342.2025.017-3.682.9732.6090.1592.9031.42.474-1.80.4521.1031.5920.6050.5713.2134.1252.5570.3922.0270.95-0.1371.2051.0141.4481.0030.0461.152-0.387
Percentage of InterestAndOtherIncomeExpenseNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcn:InterestAndOtherIncomeExpenseNet us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems


Interest
Period End2021-06-302021-03-312020-06-302020-03-312019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-0.9121.0342.2025.0170.1592.9031.42.474-1.80.4521.1031.5920.605
Percentage of InterestAndOtherIncomeExpenseNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcn:ProceedsOrPaymentsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions

fcn:ProceedsOrPaymentsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-0.6281.328-0.94-5.583-0.0052.1671.614-0.6057.23412144.2151.85-1.8540.312-0.8123.3149.04110-1.3712.7355.2694.6314.0314.8012.663-0.202-2.49234.9632.58-1.335
Percentage of ProceedsOrPaymentsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcn:PurchaseandRetirementofCommonStockNotYetPaid

fcn:PurchaseandRetirementofCommonStockNotYetPaid


Purchaseand
Period End2020-09-30
Value6711000.0
Percentage of PurchaseandRetirementofCommonStockNotYetPaid100.0

fcn:SegmentDepreciationExpense

fcn:SegmentDepreciationExpense


Segment
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value7.2367.1917.1467.067.3896.5566.3646.1537.3887.5746.516.6036.7837.216117.927.1797.0297.486.7336.5136.9917.9147.2937.5127.5487.2717.1126.9446.8766.4126.0386.3356.2735.8916.1155.8665.748
Percentage of SegmentDepreciationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcn:SegmentDepreciationExpense us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems


Segment
Period End2021-06-302021-03-312020-06-302020-03-312019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value7.8347.437.1917.1466.3646.1537.3887.5746.8646.516.6036.7837.216
Percentage of SegmentDepreciationExpense0.00.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0

fcn:StockIssuedDuringPeriodValueStockUnitsUnderIncentiveCompensationPlan

fcn:StockIssuedDuringPeriodValueStockUnitsUnderIncentiveCompensationPlan


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-06-302011-03-31
Value02603000.00002314000.0067000.001346000.00001059000.00001547000.00001842000.00002124000.00042000.01632000.000180000.02825000.00003079000.004241000.0
Percentage of StockIssuedDuringPeriodValueStockUnitsUnderIncentiveCompensationPlan0.0100.00.00.00.0100.00.0100.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.0100.0100.00.00.0100.0100.00.00.00.0100.00.0100.0

fcn:StockIssuedDuringPeriodValueStockUnitsUnderIncentiveCompensationPlan us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-03-312020-03-312019-09-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-06-302011-03-31
Value2603000.02314000.067000.01346000.00001059000.00001547000.00001842000.00002124000.00042000.01632000.000180000.02825000.00003079000.004241000.0
Percentage of StockIssuedDuringPeriodValueStockUnitsUnderIncentiveCompensationPlan100.0100.0100.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.0100.0100.00.00.0100.0100.00.00.00.0100.00.0100.0

fcn:UnallocatedCorporateExpenses

fcn:UnallocatedCorporateExpenses


Unallocated
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value2630231927282219272522182219272120182620201424182120241514171618172217201715
Percentage of UnallocatedCorporateExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcn:UnallocatedCorporateExpenses us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems


Unallocated
Period End2021-06-302021-03-312020-06-302020-03-312019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value29263023221927252322182219
Percentage of UnallocatedCorporateExpenses0.00.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0

us-gaap:AdjustmentForAmortization

us-gaap:AdjustmentForAmortization


Adjustment
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value2.7952.3142.3312.3142.1251.8521.8611.8651.9752.0522.7662.8822.4222.4932.2652.8452.592.6062.8072.93.0073.0124.0553.3983.4524.6165.6615.7765.9535.5645.6345.7665.495.5175.5765.8435.4985.4545.6816.286
Percentage of AdjustmentForAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentForAmortization us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems


Adjustment
Period End2021-06-302021-03-312020-06-302020-03-312019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value2.8532.82.3142.3311.8611.8651.9752.0522.272.7662.8822.4222.493
Percentage of AdjustmentForAmortization0.00.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableWriteOffs

us-gaap:AllowanceForDoubtfulAccountsReceivableWriteOffs


Allowance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2.8026.9165.016.1827.56.13.8652.9513.42.5
Percentage of AllowanceForDoubtfulAccountsReceivableWriteOffs100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationOfFinancingCostsAndDiscounts

us-gaap:AmortizationOfFinancingCostsAndDiscounts


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value2.872.8152.1863.0413.0092.9782.9492.9182.8882.862.8521.6110.4960.4970.495
Percentage of AmortizationOfFinancingCostsAndDiscounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationOfFinancingCostsAndDiscounts us-gaap:DebtInstrument, us-gaap:LongtermDebtType

fcn:ConvertibleNoteDue2023, us-gaap:SeniorNotes


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-30
Value2.382.3482.3172.2862.2552.2252.1952.1662.1372.1082.080.9380.00.00.0
Percentage of AmortizationOfFinancingCostsAndDiscounts82.983.4106.075.274.974.774.474.274.073.772.958.20.00.00.0

us-gaap:BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1

us-gaap:BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1


Business
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-2.4191.2890.9413.5320.6140.5061.6550.5310.0930.0930.1240.123-0.1640.3960.8670.2520.7770.3950.6230.2010.2061.134-0.0550.159-1.5380.234-0.0850.257-0.005-1.843-4.7780.63-7.4520.731-0.4830.403-3.5410.557
Percentage of BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGainOrLoss us-gaap:ConsolidationItems

us-gaap:BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGainOrLoss

us-gaap:MaterialReconcilingItems


Business
Period End2021-06-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value3.130.00.00.00.00.00.0-0.536-0.166
Percentage of BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGainOrLoss100.00.00.00.00.00.00.0100.0100.0

us-gaap:ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod

us-gaap:ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value173.93.92.68.38.35.47.0216.43.28.74.53.7
Percentage of ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationAndAmortization

us-gaap:DepreciationAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value8.6048.1619.0067.9487.8847.8237.7698.087.2387.0666.9888.2958.4887.7657.4097.477.7278.571139.318.0787.9718.8237.4587.3037.8088.8088.189.5538.5858.428.1968.0168.0067.4448.026107.4967.0747.42
Percentage of DepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Effect
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value4.367-3.38818103.027-13.67211-7.402-2.8872.106-6.719-0.688-7.3945.012
Percentage of EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings


Fair
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value676000.01289000.03532000.0614000.0506000.0531000.093000.093000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome


Fair
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-30
Value264000.0-612000.0359000.088000.0-148000.0-333000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome100.0100.0100.0100.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases


Fair
Period End2021-06-302020-09-302019-09-30
Value1.0933.4614
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases100.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements


Fair
Period End2021-06-302021-03-312020-06-302019-06-30
Value4122000.01000000.04692000.01000000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements100.0100.0100.0100.0

us-gaap:GoodwillAcquiredDuringPeriod us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments

us-gaap:GoodwillAcquiredDuringPeriod

fcn:DeltaPartners, fcn:CorporateFinanceRestructuring


Goodwill
Period End2020-09-30
Value20
Percentage of GoodwillAcquiredDuringPeriod100.0

us-gaap:GoodwillAcquiredDuringPeriod us-gaap:StatementBusinessSegments

fcn:ForensicAndLitigationConsulting


Goodwill
Period End2021-06-302014-03-312013-03-31
Value5.50.0711.441
Percentage of GoodwillAcquiredDuringPeriod0.00.00.0

us-gaap:GoodwillForeignCurrencyTranslationGainLoss

us-gaap:GoodwillForeignCurrencyTranslationGainLoss


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value1.272-1.587117.074.214-10.8198.779-5.958-2.1852.426-3.613-1.875-9.2793.2080.6394.64.0373.626-8.447-1.372
Percentage of GoodwillForeignCurrencyTranslationGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GoodwillForeignCurrencyTranslationGainLoss us-gaap:StatementBusinessSegments

fcn:CorporateFinanceRestructuring


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value0.293-1.8534.2982.5853.486-3.7712.196-2.0320.0480.244-0.759-0.606-1.552-0.902-0.0420.792-0.0931.593-2.0850.768
Percentage of GoodwillForeignCurrencyTranslationGainLoss23.0116.839.036.682.734.925.034.1-2.210.121.032.316.7-28.1-6.617.2-2.343.924.7-56.0

fcn:EconomicConsulting


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value0.076-0.0380.4170.3150.009-0.3310.4-0.256-0.1090.095-0.172-0.063-0.5070.2940.0740.2580.350.104-0.432-0.135
Percentage of GoodwillForeignCurrencyTranslationGainLoss6.02.43.84.50.23.14.64.35.03.94.83.45.59.211.65.68.72.95.19.8

fcn:ForensicAndLitigationConsulting


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value0.507-0.1921.8541.279-0.077-1.8021.811-1.199-0.4760.447-0.667-0.347-2.4121.2440.2081.151.3140.503-1.817-0.595
Percentage of GoodwillForeignCurrencyTranslationGainLoss39.912.116.818.1-1.816.720.620.121.818.418.518.526.038.832.625.032.513.921.543.4

fcn:StrategicCommunications


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value0.3850.4774.3662.8320.803-4.8344.28-2.426-1.6111.603-1.978-0.845-4.712.5120.3882.3522.4091.409-4.034-1.367
Percentage of GoodwillForeignCurrencyTranslationGainLoss30.3-30.139.640.119.144.748.840.773.766.154.745.150.878.360.751.159.738.947.899.6

fcn:Technology


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value0.0110.0190.080.059-0.007-0.0810.092-0.045-0.0370.037-0.037-0.014-0.0980.060.0110.0480.0570.017-0.079-0.043
Percentage of GoodwillForeignCurrencyTranslationGainLoss0.9-1.20.70.8-0.20.71.00.81.71.51.00.71.11.91.71.01.40.50.93.1

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value-5.715-7.8036.1885.483-8.90611-1.5754.274-11.156-0.45-7.24215-8.9969.348-12.40218-2.1740.287-7.6328.968-3.6875.619-14.87612-18.39415-9.5587.893-16.1718-8.31718-17.95716-18.0666.824-18.9117-3.01714-16.27169.491
Percentage of IncreaseDecreaseInAccountsPayableAndAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-2.669.355-7.914-12.291-1.677-0.667-6.2816.3531311-16.98115-0.33713-34.6445.789-0.5633.65-6.192-1.12511173.12-1.087105.5246.9683.4835.516-0.684-5.026-1.751112.937-1.22111-1.481-15.627216.803-2.134-3.6086.012108.843-13.182
Percentage of IncreaseDecreaseInAccruedIncomeTaxesPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value84-172.042578868-176.07566068-123.26456533-92.501353028-92.561353336-65.511242134-74.987283046-93.573692318-28.862129.34723-67.079161741-37.07513
Percentage of IncreaseDecreaseInEmployeeRelatedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInNotesReceivableCurrent

us-gaap:IncreaseDecreaseInNotesReceivableCurrent


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-7.022-1.899-4.6832.6471.058-7.051-7.9245.8221.31-9.653-6.3281.555-1.592-2.622-6.479-6.2084.912-7.153-6.819-0.9668.493-3.853-3.44-6.2925.6231.003-0.013-4.293-3.52926-2.1-1.469100.2274.998-3.1029.35314-1.133-0.367-8.336134.4092.3022.81814
Percentage of IncreaseDecreaseInNotesReceivableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-4.828-1.93.6540.6850.463-9.442163.8647.932-5.9792.084-3.9773.7730.3780.3060.012-0.394-0.553-0.7352.6324.767-3.824-0.839-0.7248.703-3.583-3.6341.7613.067-11.9274.4710.8282.016-0.531-1.806-0.662-3.3727.735-7.603-2.2231.7774.1160.858-4.2349.066-6.826
Percentage of IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToCallOptionsAndWarrants

us-gaap:IncrementalCommonSharesAttributableToCallOptionsAndWarrants


Incremental
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value376000.0370000.0-17000.0402000.0444000.0461000.01000.0471000.0459000.0431000.0-9000.0639000.0558000.0303000.021000.031000.00194000.015000.0350000.0316000.0131000.0-30000.0426000.0451000.0376000.022000.0414000.0288000.0356000.0589000.0595000.0160000.0646000.0963000.020000.0884000.0857000.0886000.0-32000.0803000.0954000.0
Percentage of IncrementalCommonSharesAttributableToCallOptionsAndWarrants100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToConversionOfDebtSecurities

us-gaap:IncrementalCommonSharesAttributableToConversionOfDebtSecurities


Incremental
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value872000.0450000.0-60000.0337000.0507000.0433000.055000.021000.00000-513000.0229000.01159000.0114000.0647000.0836000.0676000.0-87000.0449000.01184000.0
Percentage of IncrementalCommonSharesAttributableToConversionOfDebtSecurities100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends

us-gaap:IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends


Incremental
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value668000.0760000.0-11000.0708000.0732000.0881000.025000.0829000.0749000.0807000.023000.0799000.0712000.0609000.060000.0284000.00524000.02000.0476000.0463000.0511000.02000.0462000.0453000.0564000.010000.0616000.0781000.0663000.0561000.0622000.0555000.0607000.0705000.072000.0554000.0238000.0500000.044000.0258000.0181000.0
Percentage of IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseDebtExcludingAmortization us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:InterestExpenseDebtExcludingAmortization

fcn:ConvertibleNoteDue2023, us-gaap:SeniorNotes


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-30
Value1581000.01581000.01581000.01581000.01581000.01581000.01582000.01581000.01581000.01581000.01582000.0720000.0000
Percentage of InterestExpenseDebtExcludingAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:LeaseCost

us-gaap:LeaseCost


Lease
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value16141519141414141313
Percentage of LeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1

us-gaap:NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1


Noncash
Period End2020-12-312019-12-312018-12-31
Value2.749-4.2580.0
Percentage of NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1100.0100.00.0

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeaseCost


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value14121215111111111110
Percentage of OperatingLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeasePayments

us-gaap:OperatingLeasePayments


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value151514141313139.8321111
Percentage of OperatingLeasePayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value000000000-746000.0373000.00000000000000000000000654000.00000500000.0100000.0
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax0.00.00.00.00.00.00.00.00.0100.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0100.00.00.00.00.0100.0100.0

us-gaap:OtherNoncashIncomeExpense

us-gaap:OtherNoncashIncomeExpense


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value0-32000.0-13000.00-54000.0-23000.0-267000.042000.0-18000.047000.0-704000.0-94000.0-314000.0-55000.0-230000.0-12000.045000.0520000.0558000.081000.086000.0451000.091000.0132000.0164000.0-10000.0-75000.0443000.01296000.089000.0186000.011000.081000.033000.0-214000.073000.088000.0-423000.0-522000.0386000.028000.0
Percentage of OtherNoncashIncomeExpense0.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentForContingentConsiderationLiabilityFinancingActivities

us-gaap:PaymentForContingentConsiderationLiabilityFinancingActivities


Payment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value4122000.03374000.0003948000.00001000000.01282000.000527000.02502000.05082000.0079000.00
Percentage of PaymentForContingentConsiderationLiabilityFinancingActivities100.0100.00.00.0100.00.00.00.0100.0100.00.00.0100.0100.0100.00.0100.00.0

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsForProceedsFromOtherInvestingActivities


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value541000.0-544000.0-6000.0-8000.0-202000.014000.03000.0-72000.010000.0-52000.0-662000.0-27000.0-221000.0-2000.055000.0-127000.020000.022000.0-62000.0-34000.0-143000.0-30000.07000.0-71000.0-5059000.0-75000.0-4000.010000.0-21000.0-3000.0-9000.0-12000.0-1351000.01198000.0-77000.0-16000.084000.0-278000.0-78000.0483000.0-67000.0-8000.0-2501000.02976000.0
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation


Payments
Period End2021-06-302021-03-312020-06-302020-03-31
Value677000.06798000.0940000.05583000.0
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired


Payments
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302015-12-312015-09-302014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.00.00.00.01.1950.00.0-0.0017.7830.0730.015140.2542514364.9032.955180.0119.046412.813375.2917
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired0.00.00.00.0100.00.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromLinesOfCredit

us-gaap:ProceedsFromLinesOfCredit


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312016-03-312015-12-312014-03-312012-12-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value951971405935550.020250.07.0-20.0200.00.00.00.0250.00.00.020
Percentage of ProceedsFromLinesOfCredit100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.00.00.00.00.0100.00.00.00.0100.0

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312017-12-312017-09-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-2119000.02721000.0-1250000.0-537000.01228000.03870000.01062000.0-479000.011000.01003000.079000.00108000.0511000.0-19000.0-135000.067000.0450000.0-241000.0-85000.0-96000.0-145000.0-790000.0-101000.01063000.0-184000.0-392000.0-224000.0-148000.0-685000.0-1025000.0-370000.0-636000.0-52000.0-110000.0161000.0000442000.0
Percentage of ProceedsFromPaymentsForOtherFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0

us-gaap:ProvisionForDoubtfulAccounts

us-gaap:ProvisionForDoubtfulAccounts


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3.4044.8324.0843.9847.83.8726.057.32.53.7845.9213.23.05.6764.8764.52.43.5513.0091.63.90.4375.23.83.62.9986.3563.24.24.4422.9312.93.44.0944.7922.42.54.5693.1033.73.22.5733.5412.61.63.01
Percentage of ProvisionForDoubtfulAccounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfLinesOfCredit

us-gaap:RepaymentsOfLinesOfCredit


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312011-12-312011-09-302010-12-312010-09-30
Value1652716569505.00.0405.00.00.00.00.00.0
Percentage of RepaymentsOfLinesOfCredit100.0100.0100.0100.0100.0100.00.0100.0100.00.00.00.00.00.0

us-gaap:RestructuringAndRelatedCostIncurredCost

us-gaap:RestructuringAndRelatedCostIncurredCost


Restructuring
Period End2020-12-312020-09-302018-12-312018-09-302018-06-302017-12-312017-09-302017-06-30
Value0.3736.730.00.00.0100.030
Percentage of RestructuringAndRelatedCostIncurredCost100.0100.00.00.00.0100.00.0100.0

us-gaap:RestructuringCharges

us-gaap:RestructuringCharges


Restructuring
Period End2020-12-312020-09-30
Value-3000.07103000.0
Percentage of RestructuringCharges100.0100.0

us-gaap:RestructuringCharges us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Restructuring
Period End2020-12-312020-09-30
Value0373000.0
Percentage of RestructuringCharges-0.05.3

us-gaap:OperatingSegments


Restructuring
Period End2020-12-312020-09-30
Value06730000.0
Percentage of RestructuringCharges-0.094.7

us-gaap:RestructuringCharges us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, fcn:CorporateFinanceAndRestructuring


Restructuring
Period End2020-09-30
Value861000.0
Percentage of RestructuringCharges12.1

us-gaap:OperatingSegments, fcn:EconomicConsulting


Restructuring
Period End2020-12-312020-09-30
Value035000.0
Percentage of RestructuringCharges-0.00.5

us-gaap:OperatingSegments, fcn:ForensicAndLitigationConsulting


Restructuring
Period End2020-12-312020-09-30
Value03484000.0
Percentage of RestructuringCharges-0.049.0

us-gaap:OperatingSegments, fcn:StrategicCommunications


Restructuring
Period End2020-12-312020-09-30
Value02074000.0
Percentage of RestructuringCharges-0.029.2

us-gaap:OperatingSegments, fcn:Technology


Restructuring
Period End2020-12-312020-09-30
Value0276000.0
Percentage of RestructuringCharges-0.03.9

us-gaap:RestructuringCharges us-gaap:RestructuringCostAndReserve

us-gaap:ContractTermination


Restructuring
Period End2020-12-31
Value0
Percentage of RestructuringCharges-0.0

us-gaap:EmployeeSeverance


Restructuring
Period End2020-12-31
Value0
Percentage of RestructuringCharges-0.0

us-gaap:RestructuringReserveAcceleratedDepreciation

us-gaap:RestructuringReserveAcceleratedDepreciation


Restructuring
Period End2020-12-31
Value0
Percentage of RestructuringReserveAcceleratedDepreciation0.0

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability


Right
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value840.689.10611101.455152.718154.045
Percentage of RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShortTermLeaseCost

us-gaap:ShortTermLeaseCost


Short
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value473000.0489000.0698000.0768000.0487000.0522000.0818000.0926000.0566000.0863000.0
Percentage of ShortTermLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited

us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value13000.063000.02000.018000.058000.013000.017000.038000.012000.04000.035000.0
Percentage of StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures

us-gaap:CommonStock


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value21000.0157000.024000.038000.0136000.014000.078000.0153000.033000.099000.0175000.0
Percentage of StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:CommonStock


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value33000.012000.043000.033000.034000.094000.087000.055000.0340000.0360000.0153000.0
Percentage of StockIssuedDuringPeriodSharesStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value-1814000.0-7231000.0-207000.0-2154000.0-6767000.0-1322000.0-1351000.0-2739000.0-428000.0-835000.0-252000.0-1579000.0-208000.0-1934000.0-183000.0-2115000.0-1588000.0-1189000.0-384000.0-2375000.0-205000.0-363000.0-506000.0-3297000.0-1060000.0-357000.0-534000.0-4557000.0-1259000.0-548000.0-586000.0-3944000.0-1504000.0-309000.0-491000.0-4081000.0-925000.0-451000.0-615000.0-2475000.0
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value-1814000.0-7232000.0-207000.0-2155000.0-6768000.0-1322000.0-1352000.0-2740000.0-428000.0-835000.0-253000.0-1581000.0-208000.0-1934000.0-184000.0-2116000.0-1588000.0-1189000.0-387000.0-2377000.0-205000.0-364000.0-506000.0-3297000.0-1060000.0-358000.0-534000.0-4559000.0-1260000.0-548000.0-587000.0-3945000.0-1504000.0-309000.0-491000.0-4085000.0-925000.0-451000.0-617000.0-2477000.0
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures100.0100.0100.0100.0100.0100.0100.1100.0100.0100.0100.4100.1100.0100.0100.5100.0100.0100.0100.8100.1100.0100.3100.0100.0100.0100.3100.0100.0100.1100.0100.2100.0100.0100.0100.0100.1100.0100.0100.3100.1

us-gaap:CommonStock


Stock
Period End2021-03-312020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value1000.01000.01000.001000.01000.0001000.02000.0001000.01000.0003000.02000.0001000.002000.01000.001000.01000.00004000.0002000.02000.0
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures-0.0-0.0-0.0-0.0-0.1-0.0-0.0-0.0-0.4-0.1-0.0-0.0-0.5-0.0-0.0-0.0-0.8-0.1-0.0-0.0-0.3-0.0-0.0-0.1-0.0-0.2-0.0-0.0-0.0-0.0-0.1-0.0-0.0-0.3-0.1

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value1.1370.4341.5361.1911.2073.5693.0762.2127.39913145.7942.1430.080.5171.3933.7638.818111.3132.6412.6627.9825.7414.7322.020.7522.395235.4123.0842.5391.9311.6150.2413.25612
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value1.1360.4341.5361.1911.2063.5683.0752.2117.39713145.7932.1430.080.5161.3933.7628.815111.3122.642.6627.9795.7384.732.020.7522.393235.413.0832.5381.9291.6140.2413.25512
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised99.9100.0100.0100.099.9100.0100.0100.0100.0100.0100.0100.0100.0100.099.8100.0100.0100.0100.099.9100.0100.0100.099.9100.0100.0100.099.9100.0100.0100.0100.099.999.9100.0100.0100.0

us-gaap:CommonStock


Stock
Period End2021-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value0.0010.0010.0010.0010.0010.0020.0040.0040.0010.00.00.0010.0030.0030.0010.0010.00.0030.0030.0020.00.00.0020.0090.0020.0010.0010.0020.0010.00.0010.005
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised0.10.10.00.00.00.00.00.00.00.00.00.00.00.00.10.00.00.00.10.00.00.00.10.00.00.00.00.10.10.00.00.0

us-gaap:StockRepurchasedAndRetiredDuringPeriodShares us-gaap:ShareRepurchaseProgram

us-gaap:StockRepurchasedAndRetiredDuringPeriodShares

fcn:TwoThousandSixteenStockRepurchaseProgram


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0422000.01599000.0749000.0471000.0450000.0259000.091000.0580000.0328000.0756000.000337000.0308000.01599000.01887000.0880000.0
Percentage of StockRepurchasedAndRetiredDuringPeriodShares0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0

us-gaap:StockRepurchasedAndRetiredDuringPeriodShares us-gaap:StatementEquityComponents

us-gaap:CommonStock


Stock
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312011-09-30
Value422000.0749000.0471000.0450000.091000.0580000.0328000.0419000.0196000.00337000.0308000.01599000.01887000.0880000.0535000.0595000.00827000.0923000.011466000.0-671000.0
Percentage of StockRepurchasedAndRetiredDuringPeriodShares100.0100.0100.0100.0100.0100.0100.055.40.00.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.0

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue


Stock
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312011-09-302011-06-302011-03-31
Value468251507.734482126150.01412526536180.00.02.90322200.028300.00.00.0209
Percentage of StockRepurchasedAndRetiredDuringPeriodValue100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.00.0100.0100.00.00.00.0100.0

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue us-gaap:ShareRepurchaseProgram

fcn:TwoThousandSixteenStockRepurchaseProgram


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.046169825150277.7324821260.00.01412526536
Percentage of StockRepurchasedAndRetiredDuringPeriodValue0.0100.00.0100.0100.0100.00.0100.0100.0100.0100.00.00.0100.0100.099.999.9100.0

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312011-09-302011-06-302011-03-31
Value-0.0473.0478251507.733482126140.01412526536180.00.02.90222200.028300.0-0.006-0.007209
Percentage of StockRepurchasedAndRetiredDuringPeriodValue0.06.6100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.00.0100.0100.00.00.00.0100.0

us-gaap:CommonStock


Stock
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312011-09-302011-06-302011-03-31
Value0.0040.0070.0050.0050.0010.0060.0030.0050.0020.00.0030.0020.0160.020.0080.0040.00.00.0010.0060.0060.00.0080.010.00.0060.0070.044
Percentage of StockRepurchasedAndRetiredDuringPeriodValue0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stock
Period End2021-03-31
Value43
Percentage of StockRepurchasedAndRetiredDuringPeriodValue93.4

us-gaap:SubleaseIncome

us-gaap:SubleaseIncome


Sublease
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1048000.01048000.01048000.01048000.01041000.01090000.01313000.01259000.01246000.01197000.0
Percentage of SubleaseIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStockAcquiredAverageCostPerShare us-gaap:ShareRepurchaseProgram

us-gaap:TreasuryStockAcquiredAverageCostPerShare

fcn:TwoThousandSixteenStockRepurchaseProgram


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0109.37-2.16110.57108.41111.736.1285.1183.3466.711.710042.170.3932.9834.7441.95
Percentage of TreasuryStockAcquiredAverageCostPerShare0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0

us-gaap:VariableLeaseCost

us-gaap:VariableLeaseCost


Variable
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2.7483.4633.4233.732.8462.9873.2343.032.6853.013
Percentage of VariableLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcn:DeferredTaxAssetsNetOperatingLossCarryforwardsAndCreditStateAndLocal

fcn:DeferredTaxAssetsNetOperatingLossCarryforwardsAndCreditStateAndLocal


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value2090000.02066000.03510000.03586000.04169000.03883000.03558000.02454000.01921000.02943000.0
Percentage of DeferredTaxAssetsNetOperatingLossCarryforwardsAndCreditStateAndLocal100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcn:DeferredTaxAssetsNotesReceivableFromEmployees

fcn:DeferredTaxAssetsNotesReceivableFromEmployees


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value13121212212023
Percentage of DeferredTaxAssetsNotesReceivableFromEmployees100.0100.0100.0100.0100.0100.0100.0

fcn:DeferredTaxAssetsOperatingLease

fcn:DeferredTaxAssetsOperatingLease


Deferred
Period End2020-12-312019-12-31
Value4143
Percentage of DeferredTaxAssetsOperatingLease100.0100.0

fcn:DeferredTaxAssetsOperatingLossCarryforwardsForeignNetOfValuationAllowance

fcn:DeferredTaxAssetsOperatingLossCarryforwardsForeignNetOfValuationAllowance


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value9.4379.3889.85712126.6148.046.0247.9762.585
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsForeignNetOfValuationAllowance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcn:DeferredTaxLiabilitiesBasisDifferenceInSubsidiaries

fcn:DeferredTaxLiabilitiesBasisDifferenceInSubsidiaries


Deferred
Period End2020-12-31
Value27
Percentage of DeferredTaxLiabilitiesBasisDifferenceInSubsidiaries100.0

fcn:DeferredTaxLiabilitiesEquityDebtDiscount

fcn:DeferredTaxLiabilitiesEquityDebtDiscount


Deferred
Period End2020-12-312019-12-312018-12-312017-12-31
Value6.6238.89110.0
Percentage of DeferredTaxLiabilitiesEquityDebtDiscount100.0100.0100.00.0

fcn:DeferredTaxLiabilitiesForeignWithholdingTaxExcludingUndistributedForeignEarnings

fcn:DeferredTaxLiabilitiesForeignWithholdingTaxExcludingUndistributedForeignEarnings


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value1980000.01195000.0413000.01035000.00
Percentage of DeferredTaxLiabilitiesForeignWithholdingTaxExcludingUndistributedForeignEarnings100.0100.0100.0100.00.0

fcn:DeferredTaxLiabilitiesOperatingLease

fcn:DeferredTaxLiabilitiesOperatingLease


Deferred
Period End2020-12-312019-12-31
Value2829
Percentage of DeferredTaxLiabilitiesOperatingLease100.0100.0

fcn:DeferredTaxLiabilitiesPropertyEquipmentAndCapitalizedSoftware

fcn:DeferredTaxLiabilitiesPropertyEquipmentAndCapitalizedSoftware


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value7663000.03797000.06652000.02308000.06527000.05739000.04142000.06523000.0819000.01383000.02115000.0
Percentage of DeferredTaxLiabilitiesPropertyEquipmentAndCapitalizedSoftware100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcn:DeferredTaxLiabilitiesRevenueRecognition

fcn:DeferredTaxLiabilitiesRevenueRecognition


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value8.3516.7325.0877.22711129.40216193335
Percentage of DeferredTaxLiabilitiesRevenueRecognition100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcn:FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour

fcn:FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour


Finite
Period End2021-06-302021-03-312020-09-30
Value6471000.05742000.08390000.0
Percentage of FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour100.0100.0100.0

fcn:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour

fcn:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour


Lessee
Period End2020-09-30
Value84
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour100.0

fcn:LesseeOperatingLeaseLiabilityToBePaidAfterYearFour

fcn:LesseeOperatingLeaseLiabilityToBePaidAfterYearFour


Lessee
Period End2021-06-302021-03-31
Value17263
Percentage of LesseeOperatingLeaseLiabilityToBePaidAfterYearFour100.0100.0

fcn:LessorOperatingLeasePaymentsToBeReceivedAfterYearFour

fcn:LessorOperatingLeasePaymentsToBeReceivedAfterYearFour


Lessor
Period End2020-09-30
Value300000.0
Percentage of LessorOperatingLeasePaymentsToBeReceivedAfterYearFour100.0

us-gaap:AccountsReceivableGrossCurrent

us-gaap:AccountsReceivableGrossCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value598542513603578584540552557504437477455417390415399383365416415420405426419382381401423375352345362334314363355335335348318278268241
Percentage of AccountsReceivableGrossCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccountsReceivableGrossCurrent us-gaap:Restatement

srt:RevisionOfPriorPeriodReclassificationAdjustment


Accounts
Period End2020-12-31
Value-58.3
Percentage of AccountsReceivableGrossCurrent-11.4

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent


Allowance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value3937383232992842652682432372022212162011801961911871781951991971851831691591441411391261091101069894938381808072636359
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent us-gaap:Restatement

srt:RevisionOfPriorPeriodReclassificationAdjustment


Allowance
Period End2020-12-31
Value-230.3
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent-599.9

us-gaap:AssetsNet us-gaap:StatementGeographical

us-gaap:AssetsNet

country:GB


Assets
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value196196160207193210226220255
Percentage of AssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0

country:US


Assets
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value763925867654709660594504534
Percentage of AssetsNet388.0471.9539.1314.6367.2313.3263.2228.5208.9

fcn:AllOtherCountries


Assets
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value440367320330304
Percentage of AssetsNet223.8187.6199.3158.8157.5

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

us-gaap:BusinessCombinationContingentConsiderationLiability

us-gaap:FairValueInputsLevel3, us-gaap:EstimateOfFairValueFairValueDisclosure


Business
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value14192018111514162.1422.962.962.962.963.753.755.692
Percentage of BusinessCombinationContingentConsiderationLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationContingentConsiderationLiability us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


Business
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value14192018111514162.1422.962.962.962.963.753.755.692
Percentage of BusinessCombinationContingentConsiderationLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerAssetNet

us-gaap:ContractWithCustomerAssetNet


Contract
Period End2021-06-302021-03-312020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value1400000.01800000.02600000.01300000.03400000.06800000.02100000.02400000.02900000.00
Percentage of ContractWithCustomerAssetNet100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:ContractWithCustomerLiability

us-gaap:ContractWithCustomerLiability


Contract
Period End2021-06-302021-03-312020-12-312020-09-30
Value01000000.001000000.0
Percentage of ContractWithCustomerLiability0.0100.00.0100.0

us-gaap:DebtInstrumentCarryingAmount

us-gaap:DebtInstrumentCarryingAmount


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value416486316341351366316316336316316616375445400465485407370500711737717717723723723718815816794815814810
Percentage of DebtInstrumentCarryingAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentCarryingAmount us-gaap:DebtInstrument

fcn:CreditFacility


Debt
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-06-302018-12-312017-12-31
Value1001702535500.0200.0100
Percentage of DebtInstrumentCarryingAmount24.035.07.310.013.70.05.90.025.0

us-gaap:DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent

us-gaap:DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312012-12-312011-12-312010-12-31
Value3434343434343434343434181818
Percentage of DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentUnamortizedDiscount

us-gaap:DebtInstrumentUnamortizedDiscount


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312011-12-312010-12-31
Value21232628303335373941433.0738.425
Percentage of DebtInstrumentUnamortizedDiscount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredIncomeTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value254258222200292266247
Percentage of DeferredIncomeTaxLiabilities100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsGross


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value13113294104141139126
Percentage of DeferredTaxAssetsGross100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value3701000.01898000.01129000.07159000.05284000.03754000.09583000.09090000.04783000.0366000.0864000.0
Percentage of DeferredTaxAssetsOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value0.242.1171.8012.6883.0842.2794.66912-0.152
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsCompensatedAbsences

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsCompensatedAbsences


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value30272323383722188.0166.6319.955
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsCompensatedAbsences100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits


Deferred
Period End2020-12-312019-12-312018-12-31
Value2339000.01191000.0943000.0
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1312111524301821232523
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value14131111171714119.2048.88611
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssets

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssets


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value202209199190273247233210188160142
Percentage of DeferredTaxLiabilitiesGoodwillAndIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value368285455397314240416354280212333286224191268232191172261229193157227203183147220200169124222164144132168154137110180158141110143152
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized us-gaap:AwardType

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:PerformanceShares


Employee
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value8.06.32.11.61.3
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized100.0100.0100.0100.0100.0

us-gaap:RestrictedStock


Employee
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value322722202117171925
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized400.0436.51090.51293.81646.20.00.00.00.0

us-gaap:RestrictedStockUnitsRSU


Employee
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value3.90.80.20.30.72.81.12.33.4
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized48.812.79.518.853.80.00.00.00.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value14192018111514172.8843.7913.6983.755.692
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312017-12-312016-12-312015-12-312014-12-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value969390868280797572817881781191171111049910297908579777287
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization us-gaap:FiniteLivedIntangibleAssetsByMajorClass

fcn:AcquiredSoftware


Finite
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value2.4372.2442.1152.0611.91.618
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization2.82.72.62.62.52.2

us-gaap:ComputerSoftwareIntangibleAsset


Finite
Period End2021-06-302021-03-312020-12-312019-12-312018-12-312017-12-312016-12-312014-03-312013-12-312012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value2.7162.5732.5852.0611.6181.3831.2923333242221191819
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization2.82.82.92.62.21.71.728.328.726.826.526.725.424.922.4

us-gaap:CustomerRelationships


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312017-12-312016-12-312014-03-312013-12-312012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value89878582787776737180757573565349484546
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization93.293.894.194.895.596.196.697.197.898.396.463.563.262.162.362.162.762.652.8

us-gaap:TradeNames


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312017-12-312016-12-312014-03-312013-12-312010-12-31
Value3.8143.2122.7682.1081.4811.0510.6530.2530.00.00.260.440.3659.61
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization4.03.43.12.41.81.30.80.30.00.00.30.40.311.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive


Finite
Period End2020-12-31
Value5794000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths


Finite
Period End2021-06-302021-03-312020-12-312020-09-30
Value8.8878.5361010
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear


Finite
Period End2021-06-302021-03-312020-09-30
Value5207000.07801000.02792000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive


Finite
Period End2020-12-31
Value2787000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFive100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour


Finite
Period End2021-06-302021-03-312020-12-312020-09-30
Value3051000.02729000.03504000.03388000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFour100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree


Finite
Period End2021-06-302021-03-312020-12-312020-09-30
Value3745000.03414000.04972000.04821000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearThree100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo


Finite
Period End2021-06-302021-03-312020-12-312020-09-30
Value5192000.04850000.08683000.08519000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsGross

us-gaap:FiniteLivedIntangibleAssetsGross


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312017-12-312016-12-312015-12-312014-12-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value128126126125111110112111102120124139149202208198200196201195192194192196199216
Percentage of FiniteLivedIntangibleAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsGross us-gaap:FiniteLivedIntangibleAssetsByMajorClass

fcn:AcquiredSoftware


Finite
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value3.5373.4013.3193.3863.2543.107
Percentage of FiniteLivedIntangibleAssetsGross2.83.13.03.02.93.0

us-gaap:ComputerSoftwareIntangibleAsset


Finite
Period End2021-06-302021-03-312020-12-312019-12-312018-12-312017-12-312016-12-312014-03-312013-12-312012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value3.5073.4583.6183.3863.1073.2643.1713740333333333337
Percentage of FiniteLivedIntangibleAssetsGross2.72.72.83.03.02.72.518.519.217.417.217.416.916.717.4

us-gaap:CustomerRelationships


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312017-12-312016-12-312014-03-312013-12-312012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value1131111111109797999899117119153157144146144147150149
Percentage of FiniteLivedIntangibleAssetsGross88.488.387.988.188.088.288.387.997.097.396.275.875.375.175.275.075.275.368.9

us-gaap:TradeNames


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312017-12-312016-12-312014-03-312013-12-312010-12-31
Value111111119.8989.739.855100.00.00.360.4850.4859.61
Percentage of FiniteLivedIntangibleAssetsGross8.99.09.39.18.98.88.79.20.00.00.30.20.24.4

us-gaap:GoodwillGross

us-gaap:GoodwillGross


Goodwill
Period End2021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-31
Value324141713901386139613911366136813661370139214021398139813811374137413821383139213921393140213951405140714191415141213701309
Percentage of GoodwillGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GoodwillGross us-gaap:StatementBusinessSegments

fcn:CorporateFinanceRestructuring


Goodwill
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-31
Value501478475478480451451450451452453454454442440440442441443441440444443446448451450449469436
Percentage of GoodwillGross35.434.434.334.334.533.033.033.033.032.532.432.532.532.032.132.132.031.931.831.731.631.731.831.731.831.831.831.834.233.3

fcn:EconomicConsulting


Goodwill
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-31
Value268268268268268268268268268268269268268268268268268268269269269269269269263263263263247229
Percentage of GoodwillGross18.919.319.419.219.319.619.619.719.619.319.219.219.219.419.519.519.419.419.319.319.319.219.319.218.718.618.618.618.117.5

fcn:ForensicAndLitigationConsulting


Goodwill
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-31
Value231230230232230231231231232232234233233232230230232232234235235237235238240242242241198198
Percentage of GoodwillGross16.316.616.616.616.616.916.916.916.916.716.816.716.716.816.816.816.816.816.916.916.916.916.916.917.117.117.117.114.515.1

fcn:StrategicCommunications


Goodwill
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-31
Value324323319316315320316318320318320321326323323320317317320322327328329333329333338343341339336327
Percentage of GoodwillGross0.00.022.522.822.822.922.723.323.423.323.423.123.323.123.123.223.123.123.223.323.523.623.723.823.623.724.024.224.124.124.625.0

fcn:Technology


Goodwill
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-31
Value969696969696969696117117117117117117117117117117117117117117117118118118118118117
Percentage of GoodwillGross6.87.07.06.96.97.17.17.17.18.58.48.48.48.58.68.68.58.58.58.58.58.48.48.48.48.38.38.48.69.0

us-gaap:GoodwillImpairedAccumulatedImpairmentLoss

us-gaap:GoodwillImpairedAccumulatedImpairmentLoss


Goodwill
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value194194194194194194194194194194194194194194194194194194194194194194194194194194194194110
Percentage of GoodwillImpairedAccumulatedImpairmentLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GoodwillImpairedAccumulatedImpairmentLoss us-gaap:StatementBusinessSegments

fcn:StrategicCommunications


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value194194194194194194194194194194194194194194194194194194194194194194194194194194194194194194194110
Percentage of GoodwillImpairedAccumulatedImpairmentLoss0.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeTaxesReceivable

us-gaap:IncomeTaxesReceivable


Income
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value108.161187.194141523121411158.310111711137.015
Percentage of IncomeTaxesReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IntangibleAssetsGrossExcludingGoodwill

us-gaap:IntangibleAssetsGrossExcludingGoodwill


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312017-12-312016-12-312015-12-312014-12-312014-03-312013-12-312013-09-302012-12-31
Value1341311324333353841107126130145155208214204206
Percentage of IntangibleAssetsGrossExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestPayableCurrent

us-gaap:InterestPayableCurrent


Interest
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value2.9022.2432.3582.3542.2652.5859.3049.4799.0481414
Percentage of InterestPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value49414957
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear


Lessee
Period End2021-06-302021-03-312020-09-30
Value5.623344.428
Percentage of LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear100.0100.0100.0

us-gaap:LessorOperatingLeasePaymentsToBeReceivedFiveYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedFiveYears


Lessor
Period End2020-12-31
Value300000.0
Percentage of LessorOperatingLeasePaymentsToBeReceivedFiveYears100.0

us-gaap:LessorOperatingLeasePaymentsToBeReceivedFourYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedFourYears


Lessor
Period End2021-06-302021-03-312020-12-312020-09-30
Value300000.0300000.0600000.0600000.0
Percentage of LessorOperatingLeasePaymentsToBeReceivedFourYears100.0100.0100.0100.0

us-gaap:LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths

us-gaap:LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths


Lessor
Period End2021-06-302021-03-312020-12-312020-09-30
Value800000.0800000.04600000.04600000.0
Percentage of LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths100.0100.0100.0100.0

us-gaap:LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear

us-gaap:LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear


Lessor
Period End2021-06-302021-03-312020-09-30
Value2100000.03400000.01200000.0
Percentage of LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear100.0100.0100.0

us-gaap:LessorOperatingLeasePaymentsToBeReceivedTwoYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedTwoYears


Lessor
Period End2021-06-302021-03-312020-12-312020-09-30
Value600000.0600000.0800000.0800000.0
Percentage of LessorOperatingLeasePaymentsToBeReceivedTwoYears100.0100.0100.0100.0

us-gaap:LiabilitiesFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

us-gaap:LiabilitiesFairValueDisclosure

us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value446463396394399417398380353317291613381452409382
Percentage of LiabilitiesFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueInputsLevel3, us-gaap:EstimateOfFairValueFairValueDisclosure


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value14192018111514162.1422.962.962.962.963.753.755.692
Percentage of LiabilitiesFairValueDisclosure3.34.35.14.72.83.63.74.40.60.91.00.50.80.80.91.5

us-gaap:LiabilitiesFairValueDisclosure us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value306308306301292293290289292319319619377448403375
Percentage of LiabilitiesFairValueDisclosure68.566.677.176.673.170.273.076.182.7100.4109.4100.999.099.298.798.2

us-gaap:LiabilityForUncertainTaxPositionsNoncurrent

us-gaap:LiabilityForUncertainTaxPositionsNoncurrent


Liability
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312015-06-302014-12-312014-09-302013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-31
Value7.3113.72.72.78.17.92.82.22.92.92.32.13.82.92.0
Percentage of LiabilityForUncertainTaxPositionsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LoansAndLeasesReceivableRelatedParties

us-gaap:LoansAndLeasesReceivableRelatedParties


Loans
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value96104113123136142
Percentage of LoansAndLeasesReceivableRelatedParties100.0100.0100.0100.0100.0100.0

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

us-gaap:LongTermDebtFairValue

us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value446463396394399417398380353317291307381452409382
Percentage of LongTermDebtFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongTermDebtFairValue us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value291288286283280278275273290316316316375445400370
Percentage of LongTermDebtFairValue65.362.472.171.970.366.669.271.882.199.5108.4102.898.298.397.896.7

us-gaap:NotesAndLoansReceivableNetCurrent

us-gaap:NotesAndLoansReceivableNetCurrent


Notes
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value3235353432313532292929312829252327293132343136353633272829333332343233323330262625292620
Percentage of NotesAndLoansReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NotesAndLoansReceivableNetNoncurrent

us-gaap:NotesAndLoansReceivableNetNoncurrent


Notes
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value555961666463697876758489909198106108100104112112108106112120115122126131130108112110100101979992818394988769
Percentage of NotesAndLoansReceivableNetNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NotesReceivableRelatedPartiesCurrent

us-gaap:NotesReceivableRelatedPartiesCurrent


Notes
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value3535292531
Percentage of NotesReceivableRelatedPartiesCurrent100.0100.0100.0100.0100.0

us-gaap:NotesReceivableRelatedPartiesNoncurrent

us-gaap:NotesReceivableRelatedPartiesNoncurrent


Notes
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value61698498104
Percentage of NotesReceivableRelatedPartiesNoncurrent100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent


Operating
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value5.55.45.50.0550.0565.60.0560.062
Percentage of OperatingLeaseWeightedAverageDiscountRatePercent100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherAssetsMiscellaneousCurrent

us-gaap:OtherAssetsMiscellaneousCurrent


Other
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value2932141212107.993188.7017.8826.311
Percentage of OtherAssetsMiscellaneousCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherSundryLiabilitiesCurrent

us-gaap:OtherSundryLiabilitiesCurrent


Other
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value3120182016131419152625
Percentage of OtherSundryLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PrepaidExpenseCurrent

us-gaap:PrepaidExpenseCurrent


Prepaid
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value4839353532302930272221
Percentage of PrepaidExpenseCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueRemainingPerformanceObligation

us-gaap:RevenueRemainingPerformanceObligation


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value4400000.07900000.08500000.03100000.01700000.01400000.02300000.03000000.09500000.07300000.08800000.0
Percentage of RevenueRemainingPerformanceObligation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber

us-gaap:PerformanceShares


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value370000.0361000.0275000.0252000.0206000.0135000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStock


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value873000.0957000.0992000.0933000.0941000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber235.9265.1360.7370.2456.8

us-gaap:RestrictedStockUnitsRSU


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value315000.0313000.0335000.0402000.0465000.0769000.0776000.0980000.0875000.0781000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber85.186.7121.8159.5225.7569.60.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:PerformanceShares


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value87.560.6728.425.7126.6428.62
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStock


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value66.052.8643.7638.5837.92
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue75.487.1154.1150.1142.3

us-gaap:RestrictedStockUnitsRSU


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value55.4543.4539.7237.4937.8737.8737.037.5438.1839.66
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue63.471.6139.9145.8142.2132.30.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber


Share
Period End2020-12-312015-12-31
Value538000.02110000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice


Share
Period End2020-12-31
Value36.2
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue


Share
Period End2020-12-31
Value40
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1


Sharebased
Period End2020-12-31
Value40
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1100.0

us-gaap:StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1 us-gaap:ShareRepurchaseProgram

us-gaap:StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1

fcn:TwoThousandSixteenStockRepurchaseProgram


Stock
Period End2021-06-302021-03-312020-12-312020-09-30
Value167167213182
Percentage of StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1100.0100.0100.0100.0

us-gaap:UnamortizedDebtIssuanceExpense

us-gaap:UnamortizedDebtIssuanceExpense


Unamortized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value3.0873.4483.8094.174.534.8895.2485.6075.9666.3236.6813.3383.5273.7163.9054.0944.2834.4724.6614.855.0395.22811
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:UnamortizedDebtIssuanceExpense us-gaap:DebtInstrument, us-gaap:LongtermDebtType

fcn:CreditFacility, us-gaap:LineOfCredit


Unamortized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value1.11.21.30.81.21.62.02.42.83.23.63.14.3
Percentage of UnamortizedDebtIssuanceExpense35.634.834.119.226.532.738.142.846.950.653.983.496.2

us-gaap:UnbilledReceivablesCurrent

us-gaap:UnbilledReceivablesCurrent


Unbilled
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value287294236482435436418455429389319312
Percentage of UnbilledReceivablesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnbilledReceivablesCurrent us-gaap:Restatement

srt:RevisionOfPriorPeriodReclassificationAdjustment


Unbilled
Period End2020-12-31
Value-172.1
Percentage of UnbilledReceivablesCurrent-72.8

Line plots across dimensions of each concept


TTM Greenblatt ROC
_
(None,)
T T M  Greenblatt  R O C_
us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:IncomeStatementLocation
(None,)
Allocated Share Based Compensation Expenseus-gaap: Income Statement Location
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:StatementBusinessSegments
(None,)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Statement Business Segments
us-gaap:Assets
us-gaap:ConsolidationItems
(None,)
Assetsus-gaap: Consolidation Items
us-gaap:Assets
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
Assetsus-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:PropertyPlantAndEquipmentNet
us-gaap:StatementGeographical
(None,)
Property Plant And Equipment Netus-gaap: Statement Geographical
us-gaap:Goodwill
us-gaap:StatementBusinessSegments
(None,)
Goodwillus-gaap: Statement Business Segments
us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
(None,)
Finite Lived Intangible Assets Netus-gaap: Finite Lived Intangible Assets By Major Class
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components