MANT


Line plots across dimensions of each concept
Tables

Table of contents


us-gaap:StatementClassOfStock
us-gaap:CommonStockValue
us-gaap:StatementClassOfStock
us-gaap:CommonStockSharesIssued
us-gaap:StatementClassOfStock
us-gaap:CommonStockSharesOutstanding
us-gaap:StatementClassOfStock
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding
us-gaap:StatementClassOfStock
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
us-gaap:StatementClassOfStock
us-gaap:EarningsPerShareBasic
us-gaap:StatementClassOfStock
us-gaap:EarningsPerShareDiluted

us-gaap:Revenues
mant:ContractorType
us-gaap:ContractWithCustomerBasisOfPricing
us-gaap:MajorCustomers

us-gaap:CostOfGoodsAndServicesSold

us-gaap:GeneralAndAdministrativeExpense

us-gaap:OperatingIncomeLoss

us-gaap:InterestExpense

us-gaap:InterestPaidNet

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxesPaidNet

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:ComprehensiveIncomeNetOfTax
us-gaap:StatementClassOfStock
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic
us-gaap:StatementClassOfStock
us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

us-gaap:Assets

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

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

us-gaap:AssetsCurrent

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:AccountsReceivableNetCurrent

us-gaap:OtherAssetsCurrent

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:FurnitureAndFixturesGross

us-gaap:LeaseholdImprovementsGross

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AmortizationOfIntangibleAssets

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:Goodwill
us-gaap:BusinessAcquisition

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent

us-gaap:LiabilitiesCurrent

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

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

us-gaap:AdditionalPaidInCapital

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:TreasuryStockValue

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:ShareBasedCompensation
us-gaap:StatementClassOfStock
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:PaymentsOfDividends

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

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

mant:CashOutflowofDeferredContractCosts

mant:ContractLossReserve

mant:Incometaxexpensebenefitrelatedtotheexerciseofstockoptionsvestedcancellationsandthevestingofrestrictedstockandrestrictedstockunits

mant:IncreaseDecreaseinDefinedBenefitPlanAssetsforPlanBenefitsNoncurrent

mant:IncreaseDecreaseinOperatingLeaseLiabilities

mant:IncreaseDecreaserelatedtocumulativeeffectadjustmentduetoASC201802
us-gaap:StatementEquityComponents

mant:PaymentsforInternalUseSoftwareandSoftwaretobeSold
us-gaap:AwardType
mant:RSUPerformanceFactorNumberofSharesIssued

mant:StockIssuedDuringPeriodSharesRestrictedStockVesting
us-gaap:StatementEquityComponents
us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:CapitalExpendituresIncurredButNotYetPaid

us-gaap:CommonStockDividendsPerShareCashPaid

us-gaap:ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:Depreciation

us-gaap:DepreciationAndAmortization

us-gaap:DistributedEarnings
us-gaap:StatementEquityComponents
us-gaap:Dividends

us-gaap:FinanceLeasePrincipalPayments
us-gaap:BusinessAcquisition, us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FinitelivedIntangibleAssetsAcquired1

us-gaap:GainLossOnSaleOfPropertyPlantEquipment

us-gaap:IncomeLossFromEquityMethodInvestments

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInContractWithCustomerLiability

us-gaap:IncreaseDecreaseInDeferredCompensation

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities

us-gaap:IncreaseDecreaseInIncomeTaxesReceivable

us-gaap:IncreaseDecreaseInOtherCurrentAssets

us-gaap:IncreaseDecreaseInPrepaidExpense
us-gaap:StatementClassOfStock
us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:InterestIncomeOther

us-gaap:OtherNoncashExpense

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:ProceedsFromLinesOfCredit

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:RepaymentsOfLinesOfCredit

us-gaap:RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised
us-gaap:StatementClassOfStock
us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised
us-gaap:StatementEquityComponents

us-gaap:UndistributedEarnings
us-gaap:StatementClassOfStock
dei:EntityCommonStockSharesOutstanding

us-gaap:AllowanceForDoubtfulAccountsReceivable

us-gaap:BilledContractReceivables
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment

us-gaap:ContractWithCustomerLiability

us-gaap:DeferredCompensationLiabilityClassifiedNoncurrent

us-gaap:DeferredCompensationPlanAssets

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:FinanceLeaseRightOfUseAsset

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:IncomeTaxesReceivable

us-gaap:Investments
us-gaap:CreditFacility, us-gaap:LineOfCreditFacility
us-gaap:LettersOfCreditOutstandingAmount
us-gaap:CreditFacility, us-gaap:LineOfCreditFacility, us-gaap:LossContingenciesByNatureOfContingency
us-gaap:CreditFacility, us-gaap:LineOfCreditFacility
us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity

us-gaap:LongTermLineOfCredit
us-gaap:CreditFacility, us-gaap:LineOfCreditFacility

us-gaap:PrepaidExpenseCurrent

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:TreasuryStockShares

us-gaap:UnbilledReceivablesCurrent

Tables

  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 us-gaap:CommonStockValue us-gaap:StatementClassOfStock us-gaap:CommonClassA███▇▇▇▇▇▇▇▆▆▅▅▅▅▄▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▁▁0.2740.2730.2720.2710.270.2690.2680.2680.2660.2660.2630.260.2590.2580.2580.2560.2530.2480.2470.2460.2460.2460.2440.2430.2430.2430.2420.2420.2420.2410.2410.2410.240.2390.2390.2380.2380.2360.234NANANA
 us-gaap:CommonStockValue us-gaap:StatementClassOfStock us-gaap:CommonClassB▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁██0.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1330.133NANANA
 us-gaap:CommonStockSharesIssued us-gaap:StatementClassOfStock us-gaap:CommonClassA████▇▇▇▇▇▇▆▆▅▅▅▅▄▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▁▁27.38838127.30619627.2358627.14969327.02829126.91699526.81751326.78623226.62629726.5769626.28577326.022925.92260825.84769725.79597325.59000325.27029624.75992124.73158424.60840324.60190324.57540224.42351424.34511824.31575224.2706624.24589324.22032624.20532624.13567324.09383224.05475523.98666423.93889723.88233123.80141923.76133823.58183523.396549NANANA
 us-gaap:CommonStockSharesIssued us-gaap:StatementClassOfStock us-gaap:CommonClassB▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁██13.18719513.18719513.18719513.18804513.18804513.18804513.18804513.18804513.18924513.18924513.18924513.18924513.19074513.19074513.19074513.19184513.19184513.19184513.19184513.19284513.19284513.19284513.19284513.19284513.19284513.19284513.19284513.19284513.19284513.19284513.19284513.19284513.19284513.19284513.19284513.19284513.19284513.27534513.275345NANANA
 us-gaap:CommonStockSharesOutstanding us-gaap:StatementClassOfStock us-gaap:CommonClassA████▇▇▇▇▇▇▆▆▅▅▅▅▄▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▁▁27.14426827.06208326.99174726.9055826.78417826.67288226.573426.54211926.38218426.33284726.0416625.77878725.67849525.60358425.5518625.3458925.02618324.51580824.48747124.3642924.3577924.33128924.17940124.10100524.07163924.02654724.0017823.97621323.96121323.8915623.84971923.81064223.74255123.69478423.63821823.55730623.51722523.33772223.153509NANANA
 us-gaap:CommonStockSharesOutstanding us-gaap:StatementClassOfStock us-gaap:CommonClassB▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁██13.18719513.18719513.18719513.18804513.18804513.18804513.18804513.18804513.18924513.18924513.18924513.18924513.19074513.19074513.19074513.19184513.19184513.19184513.19184513.19284513.19284513.19284513.19284513.19284513.19284513.19284513.19284513.19284513.19284513.19284513.19284513.19284513.19284513.19284513.19284513.19284513.19284513.27534513.275345NANANA
 us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding us-gaap:StatementClassOfStock us-gaap:CommonClassA████▇▇▇▇▇▇▆▆▆▆▅▅▄▄▄▄▄▃▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▁27.40927.36727.27927.12826.93626.81926.81226.74326.62726.52526.35325.92925.82725.77825.66725.42924.91624.56724.51324.40624.42624.35924.19124.12624.09224.05723.96323.98223.9423.87623.84223.77823.73623.71623.64323.60723.5123.35723.25123.17123.12622.727
 us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding us-gaap:StatementClassOfStock us-gaap:CommonClassB▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂▂▃█13.18713.18713.18813.18813.18813.18813.18813.18913.18913.18913.18913.19113.19113.19113.19113.19213.19213.19213.19313.19313.19313.19313.19313.19313.19313.19313.19313.19313.19313.19313.19313.19313.19313.19313.19313.19313.27113.27513.27513.27613.31713.605
 us-gaap:WeightedAverageNumberOfSharesOutstandingBasic us-gaap:StatementClassOfStock us-gaap:CommonClassA████▇▇▇▇▇▇▆▆▆▆▆▅▄▄▄▄▄▄▄▃▃▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▁27.08226.99226.93326.82226.70726.58426.53626.42126.33926.11525.88625.68425.61825.54725.42325.16424.70724.47624.39324.34124.32524.20624.11524.06124.02323.98823.96323.94423.9123.83223.80823.7623.69723.64223.57823.51323.35723.20623.08223.0122.87222.415
 us-gaap:WeightedAverageNumberOfSharesOutstandingBasic us-gaap:StatementClassOfStock us-gaap:CommonClassB▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂▂▃█13.18713.18713.18813.18813.18813.18813.18813.18913.18913.18913.18913.19113.19113.19113.19113.19213.19213.19213.19313.19313.19313.19313.19313.19313.19313.19313.19313.19313.19313.19313.19313.19313.19313.19313.19313.19313.27113.27513.27513.27613.31713.605
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount ▁█0.2288160.235059NA0.0076410.4796850.514224NA0.2427890.251250.310745NA0.3636350.3819870.158074NA0.0134810.11.3NA1.91.82.0NA2.52.82.8NA3.03.33.6NA2.93.02.7NA2.32.11.9NA2.01.9NA
 us-gaap:EarningsPerShareBasic us-gaap:StatementClassOfStock us-gaap:CommonClassA▆▆▇▆▆▆▆▆▆▆█▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▁▅▆▆▆▆▆▆▆▆▆▆▆▆▆▆7.4e-077.1e-071.01e-067e-076.1e-075.3e-075.1e-075.5e-075e-075.1e-071.75e-063.9e-074.0000000000000003e-073.9e-073.6e-073.8e-073.9e-073.5e-073.7e-073.5e-073.3e-073.1e-073.9e-074.2e-072.1e-072.6e-07-1.77e-064.8e-075.8e-075.5e-075.5e-076.6e-076.7e-077e-078.3e-079.399999999999999e-079.9e-078.7e-079.399999999999999e-078.6e-078.900000000000001e-077.6e-07
 us-gaap:EarningsPerShareBasic us-gaap:StatementClassOfStock us-gaap:CommonClassB▆▆▇▆▆▆▆▆▆▆█▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▁▅▆▆▆▆▆▆▆▆▆▆▆▆▆▆7.4e-077.1e-071.01e-067e-076.1e-075.3e-075.1e-075.5e-075e-075.1e-071.75e-063.9e-074.0000000000000003e-073.9e-073.6e-073.8e-073.9e-073.5e-073.7e-073.5e-073.3e-073.1e-073.9e-074.2e-072.1e-072.6e-07-1.77e-064.8e-075.8e-075.5e-075.5e-076.6e-076.7e-077e-078.3e-079.399999999999999e-079.9e-078.7e-079.399999999999999e-078.6e-078.900000000000001e-077.6e-07
 us-gaap:EarningsPerShareDiluted us-gaap:StatementClassOfStock us-gaap:CommonClassA▆▆▇▆▆▆▆▆▆▆█▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▁▆▆▆▆▆▆▆▆▆▇▆▆▆▆▆7.4e-077.1e-071e-066.9e-076e-075.3e-075e-075.5e-075e-075.1e-071.73e-063.9e-074.0000000000000003e-073.9e-073.5e-073.8e-073.9e-073.5e-073.7e-073.5e-073.3e-073.1e-073.9e-074.1e-072.1e-072.6e-07-1.77e-064.8e-075.8e-075.4e-075.5e-076.6e-076.7e-076.9e-078.3e-079.399999999999999e-079.9e-078.7e-079.300000000000001e-078.6e-078.8e-077.6e-07
 us-gaap:EarningsPerShareDiluted us-gaap:StatementClassOfStock us-gaap:CommonClassB▆▆▇▆▆▆▆▆▆▆█▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▁▆▆▆▆▆▆▆▆▆▇▆▆▆▆▆7.4e-077.1e-071e-066.9e-076e-075.3e-075e-075.5e-075e-075.1e-071.73e-063.9e-074.0000000000000003e-073.9e-073.5e-073.8e-073.9e-073.5e-073.7e-073.5e-073.3e-073.1e-073.9e-074.1e-072.1e-072.6e-07-1.77e-064.8e-075.8e-075.4e-075.5e-076.6e-076.7e-076.9e-078.3e-079.399999999999999e-079.9e-078.7e-079.300000000000001e-078.6e-078.8e-077.6e-07
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:Revenues ▆▅▅▅▄▃▃▃▃▃▃▂▂▂▁▂▂▁▂▁▁▁▂▂▃▂▃▅▅▆▆▆▆▇▇██▇▇▆▆▅632.492610.912604.413579.179537.037501.93497.072497.205491.044473.236462.285422.665413.694418.374394.178415.402401.354390.662402.401393.008384.378370.33411.367447.2463.381452.033491.536567.399605.129646.008621.821645.028638.937676.509681.838734.607752.673700.864697.916656.954661.611587.557
us-gaap:CostOfGoodsAndServicesSold █▇▇▆▅▄▄▄▃▃▂▁539.473520.291515.198487.914459.266431.083427.595425.56421.012403.933394.592361.286NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:GeneralAndAdministrativeExpense █▇▇█▅▄▃▄▄▄▄▂▂▂▁▁▁▁▁▂▂▂▃▂▃▃▄▄▄▆▆▇▇▆▆▆▆▅▆▆▄▄53.43351.72351.12152.86344.47442.31540.88442.24641.70342.88241.96438.23938.08536.93734.41835.60835.62935.20334.27936.89737.02336.33538.77237.68139.52238.98241.25741.75643.41947.3448.74350.77649.94747.94747.93146.91848.85845.24247.61147.12142.77642.759
us-gaap:OperatingIncomeLoss ▇▇▇▇▇▇▇▇▇▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▁▇▇▇▇▇▇▇███████▇39.58638.89838.09438.40233.29728.53228.59329.39928.32926.42125.72923.1424.93524.3921.30423.524.21421.94522.80821.1221.11219.84623.97226.73224.0720.042-84.83832.03938.67136.37137.65442.75944.8845.69553.82358.50859.16855.85558.86454.51556.52945.232
us-gaap:InterestExpense ▂▂▂▂▂▂▁▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▃██████████▇████▇▂0.6320.6550.5060.6590.9450.4840.3710.6160.6570.7340.510.2540.3170.2940.2390.2630.3060.2890.160.4290.3290.2750.2110.3661.1064.1194.0494.1044.0624.0514.0374.114.0094.1483.9853.8573.9793.974.0023.973.5980.997
us-gaap:InterestPaidNet ▅▅▄▆█▂▂▅▆▆▃▁▁▁▁0.6170.6390.4980.690.870.3780.3540.6290.6850.6470.4340.2440.2440.2440.244NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherNonoperatingIncomeExpense ▁▁▁▁▂▁▂▁▂▁▂▂▂▂▁▂▂▂▁▄▂▁▁▂▂▁▂▁▁▂▁▂▁▂▁▁█▂▁▂▁▁0.0-0.022-0.033-0.0390.031-0.0420.0170.0010.0580.0040.0840.1910.0050.039-0.0620.0920.0450.008-0.0481.6180.072-0.141-0.2670.0670.008-0.0410.032-0.02-0.090.0460.0040.01-0.1030.015-0.289-0.023.820.096-0.2150.064-0.27-0.062
us-gaap:AllocatedShareBasedCompensationExpense █▇▆▆▅▄▄▄▃▃▇▄▄▃▃▃▁▃▁▄▄▄▃▃▃▄▄▄▄▄▅▅▆▇▇▆▆▆2.92.62.32.01.91.31.51.31.11.12.71.31.31.01.01.00.21.10.21.51.51.21.11.11.01.21.21.21.41.41.81.92.02.42.42.32.32.2NANANANA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments ▇▇▇▇▇▇▇▇▇▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▁▇▇▇▇▇▇▇███████▇39.09138.27137.60437.79432.50428.19628.31528.82727.75725.70625.31823.11424.65124.15921.02523.36523.97221.70822.62522.35320.87919.49723.62126.49212.92916.059-88.6428.08234.63232.47933.70838.77740.83541.63449.65154.73859.06852.04554.77250.6652.71844.301
us-gaap:IncomeTaxExpenseBenefit ▇▇▅▇▆▆▆▆▆▆▁▆▇▇▆▇▇▇▇▇▆▆▇▇▆▆▃▇▇▇▇▇▇▇███████▇9.1439.591-3.0179.8738.297.0668.1186.9127.8215.679-43.0898.0049.1269.17.3468.639.258.568.8849.1998.5447.7399.26210.7395.1566.368-23.1529.61413.08112.29913.50314.3516.0915.99219.17620.25222.62620.14220.7619.28420.55116.76
us-gaap:IncomeTaxesPaidNet ▁▂▅▅█▂-1.5280.0355.2835.79410.329-0.006NA1.37-8.117-0.0038.6176.2975.469-4.4833.9398.5435.678-0.061.6221.6073.0910.08NANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax ▃▃▁▃▃▃▄▂▂▃▃▃▃▂▂▃▃▃▅▂▃▂▃▃▃▃▃▃▃▃█▃▃▂▂▃-0.008-0.017-0.0860.004-0.0070.0120.027-0.027-0.0380.011-0.0230.0130.009-0.054-0.032-0.0150.0040.00.076-0.029-0.008-0.025-0.003-0.0040.001-0.013-0.003-0.008-0.003-0.0010.206-0.002-0.019-0.051-0.032-0.017NANANANANANA
 us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedOtherComprehensiveIncome▆▅▁▇▆▇█▅▄▇▅▇-0.008-0.017-0.0860.004-0.0070.0120.027-0.027-0.0380.011-0.0230.013NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▃▃▁▃▃▃█▂▂▃-0.008-0.017-0.1050.004-0.007-0.0120.272-0.027-0.0380.011NANANANANANANANANANANANA-0.067-0.0040.001-0.0130.033-0.008-0.003-0.0010.238-0.002-0.019-0.051-0.108-0.017NANANANANANA
us-gaap:NetIncomeLoss ▆▆▇▆▆▆▅▆▅▅█▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▁▅▆▅▅▆▆▆▆▆▆▆▆▆▆▆29.94828.67940.62127.93724.21421.11820.19221.92319.91520.06768.3715.18215.56115.02813.72914.66414.78213.21613.89113.02812.4511.75814.46515.4877.7089.634-65.59817.71821.55120.1820.20524.42724.74525.64230.47534.48636.44231.90334.01231.37632.16727.541
us-gaap:ComprehensiveIncomeNetOfTax ▆▆▇▆▆▆▅▆▅▅█▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▁▅▆▅▅▆▆▆▆▆▆▆▆▆▆▆29.9428.66240.51627.94124.20721.10620.46421.89619.87720.07868.26315.19515.5714.97413.66814.64914.78613.21614.05112.99912.44211.73314.39815.4837.7099.621-65.56517.7121.54820.17920.44324.42524.72625.59130.36734.46936.42831.88634.06531.35832.15727.533
 us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic us-gaap:StatementClassOfStock us-gaap:CommonClassA▆▆▇▆▆▆▅▆▅▅█▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▁▅▅▅▅▆▆▆20.14119.26627.24618.72916.2114.11613.48914.62313.2713.33345.210.0310.2729.9119.0439.6199.6358.5889.0158.4488.0727.619.34710.04.9766.216-42.26511.42413.88812.98913.00415.70715.89616.458NANANANANANANANA
 us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic us-gaap:StatementClassOfStock us-gaap:CommonClassB▆▆▇▆▆▆▆▆▆▆█▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▁▅▆▆▆▆▆▆9.8079.41313.3759.2088.0047.0026.7037.36.6456.73423.175.1525.2895.1174.6865.0455.1474.6284.8764.584.3784.1485.1185.4872.7323.418-23.3336.2947.6637.1917.2018.728.8499.184NANANANANANANANA
 us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted us-gaap:StatementClassOfStock us-gaap:CommonClassA▆▆▇▆▆▆▅▆▅▅█▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▁▅▅▅▅▆▆▆20.2219.35327.35218.79816.25514.15713.53514.68213.31813.40345.39410.06210.39.9419.0739.6549.6628.5999.038.4568.0847.6279.35810.014.9816.222-42.28711.4313.89412.99813.01115.71115.90516.476NANANANANANANANA
 us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted us-gaap:StatementClassOfStock us-gaap:CommonClassB▆▆▇▆▆▆▆▆▆▆█▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▁▅▆▆▆▆▆▆9.7289.32613.2699.1397.9596.9616.6577.2416.5976.66422.9765.125.2615.0874.6565.015.124.6174.8614.5724.3664.1315.1075.4772.7273.412-23.3116.2887.6577.1827.1948.7168.849.166NANANANANANANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:Assets ▇█▇▇▆▆▄▄▄▄▃▃▂▂▂▂▂▁▁▁▁▁▁▁▁▃▃▅▄▄▄▄▄▄▄▄▄▃▂2174.7692230.4542107.9142077.8392040.0142023.6541803.8711795.5311805.7791801.6061744.4751667.6431630.8731611.3791598.4641556.721539.4481526.1661506.4241519.7371524.1441484.0461487.4021508.5091537.0271691.0251723.4021864.3921819.2991836.3451841.9091808.8671769.61804.7221760.2061753.8181772.3611692.2421590.477NANANA
us-gaap:Liabilities ▆█▆▆▆▆▂▂▃▃▂▂▂▂▂▁▁▁▁▁▂▁▁▂▂▅▅▇▆▇▇▇▆▇▇▇█▇▆641.68720.105617.272622.883608.172610.467402.677407.453435.679443.507401.501395.151369.438360.117356.797328.122328.456336.639322.687345.34355.716321.525332.623362.963399.971555.401589.631659.303625.141657.104676.681660.772639.742693.915670.949685.445741.304685.952624.134NANANA
us-gaap:LiabilitiesAndStockholdersEquity ▇█▇▇▆▆▄▄▄▄▃▃▂▂▂▂▂▁▁▁▁▁▁▁▁▃▃▅▄▄▄▄▄▄▄▄▄▃▂2174.7692230.4542107.9142077.8392040.0142023.6541803.8711795.5311805.7791801.6061744.4751667.6431630.8731611.3791598.4641556.721539.4481526.1661506.4241519.7371524.1441484.0461487.4021508.5091537.0271691.0251723.4021864.3921819.2991836.3451841.9091808.8671769.61804.7221760.2061753.8181772.3611692.2421590.477NANANA
us-gaap:StockholdersEquity ██▇▇▇▇▆▆▆▆▆▅▅▅▄▄▄▄▄▄▃▃▃▃▃▃▃▄▄▄▃▃▃▃▃▂▂▁▁1533.0891510.3491490.6421454.9561431.8421413.1871401.1941388.0781370.11358.0991342.9741272.4921261.4351251.2621241.6671228.5981210.9921189.5271183.7371174.3971168.4281162.5211154.7791145.5461137.0561135.6241133.7711205.0891194.1581179.2411165.2281148.0951129.8581110.8071089.2571068.3731031.0571006.29966.343NANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AssetsCurrent ▄▅▃▂▂▄▂▂▂▂▁▃▃▂▂▁▁▂▁▁▁▂▂▂▃▇██▇▇█▇▆▇▇██▇▆523.533572.328454.734433.576437.849537.518439.985422.723429.674424.014367.164497.21459.624437.436421.313384.644363.642392.873369.172377.155383.571420.486419.144436.086458.519687.797750.245767.597721.026733.852745.152706.655668.476712.214688.066744.602763.732705.85630.236NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▂▃▁▂▁▄▁▁▁▁▁▅▄▃▃▃▂▂▂▂▁▂▂▂▂███▆▅▄▆▄▄▄▆▆▃▃▅▅▁29.66888.6048.85433.3135.924120.5355.29414.9517.19710.3829.451148.737108.2191.62764.93670.90140.11760.40441.31451.1914.31243.62823.78154.63930.675275.629269.001258.666193.578172.301134.896208.93124.661119.277114.483181.894206.9572.9884.829152.137162.2745.564
us-gaap:AccountsReceivableNetCurrent ██▆▄▅▅▆▄▄▄▁443.018433.662398.976367.042393.062390.851405.378367.569370.864364.18311.41NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsCurrent ▂▂▁▄▁▁▂▆█6.0895.8194.8787.1524.8984.7765.9158.9710.912NA23.37NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:PropertyPlantAndEquipmentGross █▇▆▆▅▄▄▄▄▃▃▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▃▃▃▃▃▃▂▂235.559222.297200.906180.204162.773149.967140.642141.231135.938128.371118.2493.86692.8290.55288.24585.58383.77383.16780.45181.17580.04479.39479.2678.60478.08386.13184.52481.96879.171126.146123.866122.805117.306116.461111.968110.53399.699NA61.219NANANA
us-gaap:FurnitureAndFixturesGross █▇▅▄▃▂▁184.038171.098150.64131.114118.112105.93497.577NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LeaseholdImprovementsGross ██▇▆▂▁▁50.81750.55849.62548.42144.05143.52943.065NANANANANANANANANANANANANANANANANANANANANANANANANANANANA23.93722.356NA21.948NANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment ██▇▇▆▆▅▅▅▄▄▄▄▃▃▃▃▃▃▃▃▂▂▂▂▃▂▂▂▆▆▅▅▅▃▂▁124.178118.978115.275107.211100.37295.48889.21588.05382.04378.08372.15871.16669.22567.04265.12463.3761.83859.78558.01258.36656.20754.13553.51751.94349.71156.66954.36852.91551.28997.44595.27892.90491.12481.1264.53344.70537.503NA34.133NANANA
us-gaap:AmortizationOfIntangibleAssets ▆▆█▄▄▄▄▆▅▇▇▃▃▃▃▃▂▃▃▃▂▁▂▂▂▁▂▂▂▂▂▂▂▁▁▂▂▂▄▄▄6.56.57.46.16.15.86.06.86.47.16.95.55.55.65.65.55.35.45.65.55.24.95.25.25.14.95.15.15.15.15.35.35.14.84.95.25.15.26.05.96.0NA
us-gaap:PropertyPlantAndEquipmentNet █▇▆▅▄▄▃▃▄▃▃▁▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂▂▁▂▂▂▁▂▃▄▄▂▁111.381103.31985.63172.99362.40154.47951.42753.17853.89550.28846.08222.723.59523.5123.12122.21321.93523.38222.43922.80923.83725.25925.74326.66128.37229.46230.15629.05327.88228.70128.58829.90126.18235.34147.43565.82862.19638.92827.086NANANA
us-gaap:Goodwill █████▆▆▆▆▆▆▄▄▄▄▄▄▄▄▄▄▃▃▃▃▂▁▃▃▃▃▃▃▃▂▁▁▁▁1191.271191.271191.2591191.2131166.2731085.8061085.8061085.8061085.8061085.3211084.56955.874955.874955.874955.874949.953951.353919.591919.591919.29919.548851.64851.64850.97850.915780.905752.867871.294871.019870.759861.912861.934861.653842.89808.455747.0744.322744.364729.558NANANA
us-gaap:IntangibleAssetsNetExcludingGoodwill ▆▇▇█▇▄▄▅▆▆▇▁▁▂▂▃▃▂▂▃▃▂▂▃▃▃▂▂▃▃▄▄▅▅▅▃▄▄▄188.651194.455196.778203.247196.626167.092171.962177.113182.597189.452194.348143.581146.318150.222154.931157.456160.993149.313154.176159.856164.81150.365155.25159.513162.844157.461152.523156.32160.672163.903167.91172.134176.319177.193177.764163.361166.512168.831168.487NANANA
us-gaap:FiniteLivedIntangibleAssetsNet ▆▇▇█▇▄▄▅▆▆▇▁▁▂▂▃▃▂▂▃▃▂▂▃▃▃▂▂▃▃▄▄▅▅▅▃▄188.651194.455196.778203.247196.626167.092171.962177.113182.597189.452194.348143.581146.318150.222154.931157.456160.993149.313154.176159.856164.81150.365155.25159.513162.844157.461152.523156.32160.672163.903167.91172.134176.319177.193177.764163.361166.512NA168.487NANANA
us-gaap:OperatingLeaseRightOfUseAsset ▇█████▁102.187111.932117.728116.236117.113119.8070.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent ██████▇▆▄▄▄▂▁▁▁▁▁▁▁▂▂▂▂▂▃▂▃▆▆▆▆▇▇▇█▆▆▆▆13.45813.64613.45714.12713.46413.52912.3610.7227.9437.3836.9234.0482.1992.0012.1512.3952.372.4252.6363.3253.8783.913.8844.3914.8373.2825.8469.89110.18610.46910.99512.05912.29212.48713.4610.36910.6510.39110.695NANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:LiabilitiesCurrent ▅▅▄▅▄▃▃▃▃▂▂▂▂▁▁▁▁▁▁▂▃▂▂▃▄█▄▅▄▅▆▆▅▇▆▇█▇▅338.676333.791299.981337.774306.938266.22243.333251.355255.992233.833228.285219.982196.676192.236191.654174.687176.076191.181179.896221.062239.842210.328223.653260.803303.048460.864296.685345.126317.881361.683387.243371.275353.977408.069387.7411.069465.978410.755347.74NANANA
us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent ▃▃▃▃▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▂▂▃▄▄▄▅▆▆▇█▇▇█▇▇██▇146.936169.627146.016161.404141.757128.746126.066126.13134.355134.87122.405107.471104.143106.389108.88896.20195.388105.859106.271108.595112.724122.996149.506176.137180.413180.328226.287252.712238.195268.499315.582274.818269.401308.844280.277272.722309.755305.592272.047NANANA
us-gaap:OperatingLeaseLiabilityCurrent ████▇▇▁29.06329.35229.04728.1726.71726.260.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ContractWithCustomerLiabilityCurrent █▅▃▇▇▃▃▄▄▂▁47.76636.54627.6243.89143.52628.8328.20932.35533.05621.87618.816NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:DeferredIncomeTaxLiabilitiesNet ▅█▁134.352135.93131.782NANANA108.956NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesNoncurrent █▃▃▁▁▁▄▃▄▄▃▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▃▃▃▃▃▃▃▃▃▃27.97810.27510.3091.4281.5240.8311.88910.14810.53410.71810.50511.03811.72112.22112.48113.01111.36111.16410.87911.11311.1411.16211.06311.11911.31211.25211.28811.19511.18310.4829.4039.348.8299.0757.8717.4937.4737.4197.495NANANA
us-gaap:OperatingLeaseLiabilityNoncurrent ▇█████▁89.14997.646103.14898.979101.491104.4650.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:StockholdersEquity ██▇▇▇▇▆▆▆▆▆▅▅▅▄▄▄▄▄▄▃▃▃▃▃▃▃▄▄▄▃▃▃▃▃▂▂▁▁1533.0891510.3491490.6421454.9561431.8421413.1871401.1941388.0781370.11358.0991342.9741272.4921261.4351251.2621241.6671228.5981210.9921189.5271183.7371174.3971168.4281162.5211154.7791145.5461137.0561135.6241133.7711205.0891194.1581179.2411165.2281148.0951129.8581110.8071089.2571068.3731031.0571006.29966.343NANANA
 us-gaap:CommonStockValue us-gaap:StatementClassOfStock us-gaap:CommonClassA███▇▇▇▇▇▇▇▆▆▅▅▅▅▄▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▁▁0.2740.2730.2720.2710.270.2690.2680.2680.2660.2660.2630.260.2590.2580.2580.2560.2530.2480.2470.2460.2460.2460.2440.2430.2430.2430.2420.2420.2420.2410.2410.2410.240.2390.2390.2380.2380.2360.234NANANA
 us-gaap:CommonStockValue us-gaap:StatementClassOfStock us-gaap:CommonClassB▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁██0.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1330.133NANANA
us-gaap:AdditionalPaidInCapital ███▇▇▇▇▇▆▆▆▅▅▅▅▅▄▃▃▃▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▁▁535.464529.763525.851519.835513.84508.605506.97504.378498.37496.354492.03481.579477.545474.782471.906464.375453.332438.655438.168434.969434.112432.762428.895426.214425.378423.832423.787422.349421.555419.534417.917415.864412.687409.787406.083402.032398.36393.51385.407NANANA
us-gaap:RetainedEarningsAccumulatedDeficit ██▇▇▇▆▆▆▆▆▆▅▄▄▄▄▄▄▄▄▄▄▃▃▃▃▃▄▄▄▄▄▃▃▃▂▂▂▁1006.624989.578973.767943.969926.855913.429903.084892.832880.837870.814860.027799.892792.883785.483778.71773.113766.538759.759754.457748.477743.336738.771734.873728.255720.597720.712718.892792.301782.387768.638756.241743.814727.157710.169692.272677.256642.77621.741589.838NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▄▄▅████▁▂▃▃▅▅▅▆▇███▄▄▅▅▇▇▇▇▆▇▇▇▁▁▂▃▅▆▆▆-0.247-0.239-0.222-0.093-0.097-0.09-0.102-0.374-0.347-0.309-0.32-0.213-0.226-0.235-0.181-0.12-0.105-0.109-0.109-0.269-0.24-0.232-0.207-0.14-0.136-0.137-0.124-0.157-0.149-0.146-0.145-0.383-0.381-0.362-0.311-0.203-0.186-0.172-0.155NANANA
us-gaap:TreasuryStockValue ██████████████████████████████████████▁9.1589.1589.1589.1589.1589.1589.1589.1589.1589.1589.1589.1589.1589.1589.1589.1589.1589.1589.1589.1589.1589.1589.1589.1589.1589.1589.1589.1589.1589.1589.1589.1589.1589.1589.1589.1589.1589.1589.114NANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▅▄▁█▆▅▂▅▅▁▄▅▃▄▃62.03742.64-11.553109.51676.10447.339-0.77559.18953.04-18.01537.71851.93626.77536.52912.613NANANANANANANANANANANANANANA57.615-62.00597.41638.59852.24943.233-8.606175.78510.94369.353-10.65769.96242.787
us-gaap:NetCashProvidedByUsedInInvestingActivities █▇█▆▄█████▁████-15.838-29.772-17.241-56.831-130.671-10.154-7.551-16.681-11.146-8.966-207.468-4.651-3.525-3.395-16.92NANANANANANANANANANANANANA-2.764-12.99-4.292-5.382-25.438-40.897-91.953-17.239-28.091-28.192-138.882-2.046-2.17-239.063
us-gaap:NetCashProvidedByUsedInFinancingActivities ▁█▅▄▃█▅▄▃▆▆▅▅▅▅-105.13566.8824.335-25.296-60.04478.056-1.331-34.754-45.07927.91230.464-6.758-6.667-6.443-1.658NANANANANANANANANANANANANA-7.482-7.22-7.737-7.765-7.776-6.558-18.6910.789-13.7245.42.2212.56688.918115.65
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▃▇▄▅▁█▄-58.93679.75-24.45927.389-114.611115.241-9.657NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▅▄▁█▆▅▂▅▅▁▄▅▃▄▃62.03742.64-11.553109.51676.10447.339-0.77559.18953.04-18.01537.71851.93626.77536.52912.613NANANANANANANANANANANANANANA57.615-62.00597.41638.59852.24943.233-8.606175.78510.94369.353-10.65769.96242.787
us-gaap:NetIncomeLoss ▆▆▇▆▆▆▅▆▅▅█▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▁▅▆▅▅▆▆▆▆▆▆▆▆▆▆▆29.94828.67940.62127.93724.21421.11820.19221.92319.91520.06768.3715.18215.56115.02813.72914.66414.78213.21613.89113.02812.4511.75814.46515.4877.7089.634-65.59817.71821.55120.1820.20524.42724.74525.64230.47534.48636.44231.90334.01231.37632.16727.541
us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet ▆▇▆▆▆▆▅▆▆▆▆▆▆▆▆▅▆▆▅█▃▆▆▅▅▆▁▇▆▅▄▇▆▄▅▄▇▅▅▇▅▆0.6271.0240.3230.585-0.465-0.227-1.760.4840.5530.3060.3110.9270.8410.333-0.076-1.448-0.106-0.324-0.9343.26-4.6650.7380.414-0.731-0.6450.393-7.2291.542-0.426-0.728-3.1921.1040.472-2.592-0.552-2.3561.377-0.996-1.6522.214-0.9730.133
us-gaap:IncreaseDecreaseInAccountsReceivable ▁█11.51234.686NANA-15.624-14.527NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:DeferredIncomeTaxExpenseBenefit ▆▇▇▇▇▇▆▇▇▇▁▆▇▇█▆▇▇██▇▇▇▇▇▇▂▇█▇█▆▆▆▇▅▆▆▇▆▇▆-1.5784.1485.9664.3052.712.758-1.5124.4384.8673.969-34.5261.764.2983.65311.067-1.9035.4953.59512.41910.6414.5272.9666.1687.2122.4632.825-26.2673.7059.2222.42512.461.4531.5972.0296.986-8.015-1.138-1.0923.945-3.9313.5751.099
us-gaap:ShareBasedCompensation █▇▇▆▆▄▄▄▄▃█▄▄▃▃▃▁▃▁▄▄▄▃▃▃▄▄▄▄▄▅▅▆▇▇▇▆▆▆▆▂█2.8752.6352.3051.9381.9391.3111.491.3411.1881.0542.7611.3021.1891.0671.0570.9750.21.0910.1921.491.4871.211.0771.0741.0231.2261.2811.1771.3951.3831.8471.8642.0642.3672.3572.3432.2682.2022.0722.120.5672.684
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities █▇█▆▄█████▁████-15.838-29.772-17.241-56.831-130.671-10.154-7.551-16.681-11.146-8.966-207.468-4.651-3.525-3.395-16.92NANANANANANANANANANANANANA-2.764-12.99-4.292-5.382-25.438-40.897-91.953-17.239-28.091-28.192-138.882-2.046-2.17-239.063
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▆▇▅▅▄▃▂▃▃▂▇▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▂▁▁▂▂▁▂▂▅█▂▂▁▁▁20.2325.3716.3416.50914.7087.2385.0858.6079.8486.57425.3441.3891.8072.5781.9962.321.0682.2782.0140.9480.6681.5721.3271.0070.840.9093.8743.4511.4442.3183.3253.9550.753.6883.08815.43429.9475.9915.6581.2531.6971.649
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▁█▅▄▃█▅▄▃▆▆▅▅▅▅-105.13566.8824.335-25.296-60.04478.056-1.331-34.754-45.07927.91230.464-6.758-6.667-6.443-1.658NANANANANANANANANANANANANA-7.482-7.22-7.737-7.765-7.776-6.558-18.6910.789-13.7245.42.2212.56688.918115.65
us-gaap:PaymentsOfDividends ▇▇▆▆▆▆▆▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▄█▁█▁▁▁12.92112.86110.8410.81710.80410.7449.9339.9239.9079.8618.2298.1688.1718.1378.1278.0858.0177.917.9067.8837.8987.8567.8427.8247.8377.8097.8297.8027.8217.7567.7727.7657.7767.71615.4460.015.40.00.00.0NANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31

None

us-gaap:CommonStockValue us-gaap:StatementClassOfStock

us-gaap:CommonStockValue

us-gaap:CommonClassA


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value274000.0273000.0272000.0271000.0270000.0269000.0268000.0268000.0266000.0266000.0263000.0260000.0259000.0258000.0258000.0256000.0253000.0248000.0247000.0246000.0246000.0246000.0244000.0243000.0243000.0243000.0242000.0242000.0242000.0241000.0241000.0241000.0240000.0239000.0239000.0238000.0238000.0236000.0234000.0226000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
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:CommonClassA0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonClassB


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0133000.0133000.0136000.0
Percentage of CommonStockValue48.248.448.548.748.949.149.349.349.649.650.250.851.051.251.251.652.253.253.453.753.753.754.154.354.354.354.554.554.554.854.854.855.055.255.255.555.556.456.860.2
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:CommonClassB0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:CommonStockSharesIssued us-gaap:StatementClassOfStock

us-gaap:CommonStockSharesIssued

us-gaap:CommonClassA


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value27272727272626262626262625252525252424242424242424242424242424242323232323232322
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:CommonClassB


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value13131313131313131313131313131313131313131313131313131313131313131313131313131313
Percentage of CommonStockSharesIssued48.148.348.448.648.849.049.249.249.549.650.250.750.951.051.151.652.253.353.353.653.653.754.054.254.354.454.454.554.554.754.854.855.055.155.255.455.556.356.760.2

None

us-gaap:CommonStockSharesOutstanding us-gaap:StatementClassOfStock

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonClassA


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value27272626262626262626262525252525252424242424242424242423232323232323232323232322
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonClassB


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value13131313131313131313131313131313131313131313131313131313131313131313131313131313
Percentage of CommonStockSharesOutstanding48.648.748.949.049.249.449.649.750.050.150.651.251.451.551.652.052.753.853.954.154.254.254.654.754.854.955.055.055.155.255.355.455.655.755.856.056.156.957.360.8

None

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding us-gaap:StatementClassOfStock

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:CommonClassA


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value272727272626262626262625252525252424242424242424242423232323232323232323232323232322
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonClassB


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value131313131313131313131313131313131313131313131313131313131313131313131313131313131313
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding48.148.248.348.649.049.249.249.349.549.750.050.951.151.251.451.952.953.753.854.154.054.254.554.754.854.855.155.055.155.355.355.555.655.655.855.956.456.857.157.357.659.9

None

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic us-gaap:StatementClassOfStock

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:CommonClassA


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value272626262626262626262525252525252424242424242424242323232323232323232323232323232222
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonClassB


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value131313131313131313131313131313131313131313131313131313131313131313131313131313131313
Percentage of WeightedAverageNumberOfSharesOutstandingBasic48.748.949.049.249.449.649.749.950.150.551.051.451.551.651.952.453.453.954.154.254.254.554.754.854.955.055.155.155.255.455.455.555.755.856.056.156.857.257.557.758.260.7

None

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value228820.0235060.07641.0479680.0514220.0242790.0251250.0310740.0363640.0381990.0158070.013481.0100000.01300000.01900000.01800000.02000000.02500000.02800000.02800000.03000000.03300000.03600000.02900000.03000000.02700000.02300000.02100000.01900000.02000000.01900000.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:EarningsPerShareBasic us-gaap:StatementClassOfStock

us-gaap:EarningsPerShareBasic

us-gaap:CommonClassA


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.740.711.010.70.610.530.510.550.50.511.750.390.40.390.360.380.390.350.370.350.330.310.390.420.210.26-1.770.480.580.550.550.660.670.70.830.940.990.870.940.860.890.76
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonClassB


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.740.711.010.70.610.530.510.550.50.511.750.390.40.390.360.380.390.350.370.350.330.310.390.420.210.26-1.770.480.580.550.550.660.670.70.830.940.990.870.940.860.890.76
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:EarningsPerShareDiluted us-gaap:StatementClassOfStock

us-gaap:EarningsPerShareDiluted

us-gaap:CommonClassA


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.740.711.00.690.60.530.50.550.50.511.730.390.40.390.350.380.390.350.370.350.330.310.390.410.210.26-1.770.480.580.540.550.660.670.690.830.940.990.870.930.860.880.76
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonClassB


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.740.711.00.690.60.530.50.550.50.511.730.390.40.390.350.380.390.350.370.350.330.310.390.410.210.26-1.770.480.580.540.550.660.670.690.830.940.990.870.930.860.880.76
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:Revenues

us-gaap:Revenues


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value632610604579537501497497491473462422413418394415401390402393384370411447463452491567605646621645638676681734752700697656661587
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues mant:ContractorType

mant:PrimeContractor


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value577555546524477446443442433422409375361368
Percentage of Revenues91.390.990.490.589.089.089.389.088.389.288.588.887.588.1
Percentage of Revenues91.390.990.490.589.089.089.389.088.389.288.588.887.588.1
Percentage of Revenues mant:PrimeContractor100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mant:Subcontractor


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value5555575459555354575152475149
Percentage of Revenues8.79.19.69.511.011.010.711.011.710.811.511.212.511.9
Percentage of Revenues8.79.19.69.511.011.010.711.011.710.811.511.212.511.9
Percentage of Revenues mant:Subcontractor100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:ContractWithCustomerBasisOfPricing

mant:Costreimbursable


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value432418412397371359354337
Percentage of Revenues68.468.568.268.769.271.771.367.8
Percentage of Revenues68.468.568.268.769.271.771.367.8
Percentage of Revenues mant:Costreimbursable100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FixedPriceContract


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value1201211271201089593108
Percentage of Revenues19.019.921.120.820.118.918.921.9
Percentage of Revenues19.019.921.120.820.118.918.921.9
Percentage of Revenues us-gaap:FixedPriceContract100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TimeAndMaterialsContract


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value7970646057474851
Percentage of Revenues12.511.610.710.510.69.49.810.3
Percentage of Revenues12.511.610.710.510.69.49.810.3
Percentage of Revenues us-gaap:TimeAndMaterialsContract100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:MajorCustomers

mant:Stateagenciesinternationalagenciesandcommercialentities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value9.8651012111210111012111011109.928
Percentage of Revenues1.61.72.02.02.22.22.32.12.52.32.42.72.52.4
Percentage of Revenues1.61.72.02.02.22.22.32.12.52.32.42.72.52.4
Percentage of Revenues mant:Stateagenciesinternationalagenciesandcommercialentities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mant:U.S.Government


None
Period End2020-06-302020-03-312019-06-302019-03-31
Value622600524491
Percentage of Revenues98.498.397.897.8
Percentage of Revenues98.498.397.897.8
Percentage of Revenues mant:U.S.Government100.0100.0100.0100.0

None

us-gaap:CostOfGoodsAndServicesSold

us-gaap:CostOfGoodsAndServicesSold


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value539520515487459431427425421403394361
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues85.385.285.284.285.585.986.085.685.785.485.485.5

None

us-gaap:GeneralAndAdministrativeExpense

us-gaap:GeneralAndAdministrativeExpense


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value535151524442404241424138383634353535343637363837393841414347485049474746484547474242
Percentage of GeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues8.48.58.59.18.38.48.28.58.59.19.19.09.28.88.78.68.99.08.59.49.69.89.48.48.58.68.47.47.27.37.87.97.87.17.06.46.56.56.87.26.57.3

None

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3938383833282829282625232424212324212221211923262420-84.838323836374244455358595558545645
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues6.36.46.36.66.25.75.85.95.85.65.65.56.05.85.45.76.05.65.75.45.55.45.86.05.24.4-17.35.66.45.66.16.67.06.87.98.07.98.08.48.38.57.7

None

us-gaap:InterestExpense

us-gaap:InterestExpense


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.6320.6550.5060.6590.9450.4840.3710.6160.6570.7340.510.2540.3170.2940.2390.2630.3060.2890.160.4290.3290.2750.2110.3661.1064.1194.0494.1044.0624.0514.0374.114.0094.1483.9853.8573.9793.974.0023.973.5980.997
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.10.10.10.10.20.10.10.10.10.20.10.10.10.10.10.10.10.10.00.10.10.10.10.10.20.90.80.70.70.60.60.60.60.60.60.50.50.60.60.60.50.2

None

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value617000.0639000.0498000.0690000.0870000.0378000.0354000.0629000.0685000.0647000.0434000.0244000.0244000.0244000.0244000.0
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.10.10.10.10.20.10.10.10.10.10.10.10.10.10.1

None

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0-22000.0-33000.0-39000.031000.0-42000.017000.01000.058000.04000.084000.0191000.05000.039000.0-62000.092000.045000.08000.0-48000.01618000.072000.0-141000.0-267000.067000.08000.0-41000.032000.0-20000.0-90000.046000.04000.010000.0-103000.015000.0-289000.0-20000.03820000.096000.0-215000.064000.0-270000.0-62000.0
Percentage of OtherNonoperatingIncomeExpense0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.0-0.0-0.0-0.00.0-0.00.00.00.00.00.00.00.00.0-0.00.00.00.0-0.00.40.0-0.0-0.10.00.0-0.00.0-0.0-0.00.00.00.0-0.00.0-0.0-0.00.50.0-0.00.0-0.0-0.0

None

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:AllocatedShareBasedCompensationExpense


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value2900000.02600000.02300000.02000000.01900000.01300000.01500000.01300000.01100000.01100000.02700000.01300000.01300000.01000000.01000000.01000000.0200000.01100000.0200000.01500000.01500000.01200000.01100000.01100000.01000000.01200000.01200000.01200000.01400000.01400000.01800000.01900000.02000000.02400000.02400000.02300000.02300000.02200000.0
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.50.40.40.30.40.30.30.30.20.20.60.30.30.20.30.20.00.30.00.40.40.30.30.20.20.30.20.20.20.20.30.30.30.40.40.30.30.3

None

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3938373732282828272525232424212323212222201923261216-88.64283432333840414954595254505244
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues6.26.36.26.56.15.65.75.85.75.45.55.56.05.85.35.66.05.65.65.75.45.35.75.92.83.6-18.04.95.75.05.46.06.46.27.37.57.87.47.87.78.07.5

None

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value9.1439.591-3.0179.8738.297.0668.1186.9127.8215.679-43.0898.0049.1269.17.3468.639.258.568.8849.1998.5447.7399.262105.1566.368-23.1529.6141312131416151920222020192016
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues1.41.6-0.51.71.51.41.61.41.61.2-9.31.92.22.21.92.12.32.22.22.32.22.12.32.41.11.4-4.71.72.21.92.22.22.52.42.82.83.02.93.02.93.12.9

None

us-gaap:IncomeTaxesPaidNet

us-gaap:IncomeTaxesPaidNet


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value-1.5280.0355.2835.79410-0.0061.37-8.117-0.0038.6176.2975.469-4.4833.9398.5435.678-0.061.6221.6073.0910.08
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-0.20.00.91.01.9-0.00.3-1.7-0.01.91.51.3-1.11.02.11.4-0.00.40.40.80.0

None

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value-8000.0-17000.0-86000.04000.0-7000.012000.027000.0-27000.0-38000.011000.0-23000.013000.09000.0-54000.0-32000.0-15000.04000.0076000.0-29000.0-8000.0-25000.0-3000.0-4000.01000.0-13000.0-3000.0-8000.0-3000.0-1000.0206000.0-2000.0-19000.0-51000.0-32000.0-17000.0
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-0.0-0.0-0.00.0-0.00.00.0-0.0-0.00.0-0.00.00.0-0.0-0.0-0.00.00.00.0-0.0-0.0-0.0-0.0-0.00.0-0.0-0.0-0.0-0.0-0.00.0-0.0-0.0-0.0-0.0-0.0

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-8000.0-17000.0-86000.04000.0-7000.012000.027000.0-27000.0-38000.011000.0-23000.013000.0
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-0.0-0.0-0.00.0-0.00.00.0-0.0-0.00.0-0.00.0
Percentage of Revenues us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value-8000.0-17000.0-105000.04000.0-7000.0-12000.0272000.0-27000.0-38000.011000.0-67000.0-4000.01000.0-13000.033000.0-8000.0-3000.0-1000.0238000.0-2000.0-19000.0-51000.0-108000.0-17000.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-0.0-0.0-0.00.0-0.0-0.00.1-0.0-0.00.0-0.0-0.00.0-0.00.0-0.0-0.0-0.00.0-0.0-0.0-0.0-0.0-0.0

None

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2928402724212021192068151515131414131313121114157.7089.634-65.598172120202424253034363134313227
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues4.74.76.74.84.54.24.14.44.14.214.83.63.83.63.53.53.73.43.53.33.23.23.53.51.72.1-13.33.13.63.13.23.83.93.84.54.74.84.64.94.84.94.7

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value292840272421202119206815
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues4.74.76.74.84.54.24.14.44.14.214.83.6
Percentage of Revenues us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2928402724212021192068151514131414131412121114157.7099.621-65.565172120202424253034363134313227
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 Revenues4.74.76.74.84.54.24.14.44.04.214.83.63.83.63.53.53.73.43.53.33.23.23.53.51.72.1-13.33.13.63.13.33.83.93.84.54.74.84.54.94.84.94.7

None

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic us-gaap:StatementClassOfStock

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:CommonClassA


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value201927181614131413134510109.9119.0439.6199.6358.5889.0158.4488.0727.619.34710.04.9766.216-42.26511131213151516
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues3.23.24.53.23.02.82.72.92.72.89.82.42.52.42.32.32.42.22.22.12.12.12.32.21.11.4-8.62.02.32.02.12.42.52.4
Percentage of Revenues us-gaap:CommonClassA0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonClassB


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value9.8079.413139.2088.0047.0026.7037.36.6456.734235.1525.2895.1174.6865.0455.1474.6284.8764.584.3784.1485.1185.4872.7323.418-23.3336.2947.6637.1917.2018.728.8499.184
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic48.748.949.149.249.449.649.749.950.150.551.351.451.551.651.852.453.453.954.154.254.254.554.854.954.955.055.255.155.255.455.455.555.755.8
Percentage of Revenues1.61.52.21.61.51.41.31.51.41.45.01.21.31.21.21.21.31.21.21.21.11.11.21.20.60.8-4.71.11.31.11.21.41.41.4
Percentage of Revenues us-gaap:CommonClassB0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted us-gaap:StatementClassOfStock

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

us-gaap:CommonClassA


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value201927181614131413134510109.9419.0739.6549.6628.5999.038.4568.0847.6279.358104.9816.222-42.28711131213151516
Percentage of NetIncomeLossAvailableToCommonStockholdersDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues3.23.24.53.23.02.82.73.02.72.89.82.42.52.42.32.32.42.22.22.22.12.12.32.21.11.4-8.62.02.32.02.12.42.52.4
Percentage of Revenues us-gaap:CommonClassA0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonClassB


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value9.7289.326139.1397.9596.9616.6577.2416.5976.664225.125.2615.0874.6565.015.124.6174.8614.5724.3664.1315.1075.4772.7273.412-23.3116.2887.6577.1827.1948.7168.849.166
Percentage of NetIncomeLossAvailableToCommonStockholdersDiluted48.148.248.548.649.049.249.249.349.549.750.650.951.151.251.351.953.053.753.854.154.054.254.654.754.754.855.155.055.155.355.355.555.655.6
Percentage of Revenues1.51.52.21.61.51.41.31.51.31.45.01.21.31.21.21.21.31.21.21.21.11.11.21.20.60.8-4.71.11.31.11.21.41.41.4
Percentage of Revenues us-gaap:CommonClassB0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:Assets

us-gaap:Assets


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value2174223021072077204020231803179518051801174416671630161115981556153915261506151915241484148715081537169117231864181918361841180817691804176017531772169215901100
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:Liabilities

us-gaap:Liabilities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value641720617622608610402407435443401395369360356328328336322345355321332362399555589659625657676660639693670685741685624283
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets29.532.329.330.029.830.222.322.724.124.623.023.722.722.322.321.121.322.121.422.723.321.722.424.126.032.834.235.434.435.836.736.536.238.438.139.141.840.539.225.7

None

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value2174223021072077204020231803179518051801174416671630161115981556153915261506151915241484148715081537169117231864181918361841180817691804176017531772169215901100
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-31
Value15331510149014541431141314011388137013581342127212611251124112281210118911831174116811621154114511371135113312051194117911651148112911101089106810311006966817680
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets70.567.770.770.070.269.877.777.375.975.477.076.377.377.777.778.978.777.978.677.376.778.377.675.974.067.265.864.665.664.263.363.563.861.661.960.958.259.560.874.30.0

us-gaap:StockholdersEquity us-gaap:StatementClassOfStock

us-gaap:CommonClassA


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value0.2740.2730.2720.2710.270.2690.2680.2680.2660.2660.2630.260.2590.2580.2470.2440.2420.2410.2390.2340.226
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonClassA0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonClassB


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value0.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1330.136
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonClassB0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value-0.247-0.239-0.222-0.093-0.097-0.09-0.102-0.374-0.347-0.309-0.32-0.213-0.226-0.181-0.109-0.207-0.124-0.145-0.311-0.155-0.172-0.14
Percentage of StockholdersEquity-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0
Percentage of Assets-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value535529525519513508506504498496492481477471438428423417406385362336
Percentage of StockholdersEquity34.935.135.335.735.936.036.236.336.436.536.637.837.938.037.037.137.435.937.339.944.449.4
Percentage of Assets24.623.824.925.025.225.128.128.127.627.628.228.929.329.529.128.824.622.723.124.233.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value1006989973943926913903892880870860799792778754734718756692589464352
Percentage of StockholdersEquity65.765.565.364.964.764.664.564.364.364.164.062.962.962.763.763.663.464.963.661.056.951.9
Percentage of Assets46.344.446.245.445.445.150.149.748.848.349.348.048.648.750.149.441.741.139.337.142.20.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value-9.158-9.158-9.158-9.158-9.158-9.158-9.158-9.158-9.158-9.158-9.158-9.158-9.158-9.158-9.158-9.158-9.158-9.158-9.158-9.114-9.114-9.114
Percentage of StockholdersEquity-0.6-0.6-0.6-0.6-0.6-0.6-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0.8-0.8-0.8-0.8-0.8-0.9-1.1-1.3
Percentage of Assets-0.4-0.4-0.4-0.4-0.4-0.5-0.5-0.5-0.5-0.5-0.5-0.5-0.6-0.6-0.6-0.6-0.5-0.5-0.5-0.6-0.80.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value523572454433437537439422429424367497459437421384363392369377383420419436458687750767721733745706668712688744763705630496
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets24.125.721.620.921.526.624.423.523.823.521.029.828.227.126.424.723.625.724.524.825.228.328.228.929.840.743.541.239.640.040.539.137.839.539.142.543.141.739.645.1

None

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value29888.854335.9241205.294147.197109.451148108916470406041514.3124323543027526925819317213420812411911418120672841521625.564864.3758.048
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.44.00.41.60.36.00.30.80.40.60.58.96.65.74.14.62.64.02.73.40.32.91.63.62.016.315.613.910.69.47.311.67.06.66.510.411.74.35.30.00.00.07.80.00.0

None

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value443433398367393390405367370364311
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets20.419.418.917.719.319.322.520.520.520.217.9

None

us-gaap:OtherAssetsCurrent

us-gaap:OtherAssetsCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value6.0895.8194.8787.1524.8984.7765.9158.971023
Percentage of OtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.30.20.30.20.20.30.50.61.3

None

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value2352222001801621491401411351281189392908885838380818079797878868481791261231221171161111109961
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets10.810.09.58.78.07.47.87.97.57.16.85.65.75.65.55.55.45.45.35.35.35.35.35.25.15.14.94.44.46.96.76.86.66.56.46.35.63.8

None

us-gaap:FurnitureAndFixturesGross

us-gaap:FurnitureAndFixturesGross


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value18417115013111810597
Percentage of FurnitureAndFixturesGross100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.57.77.16.35.85.25.4

None

us-gaap:LeaseholdImprovementsGross

us-gaap:LeaseholdImprovementsGross


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312011-09-302011-06-302010-12-31
Value50504948444343232221
Percentage of LeaseholdImprovementsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.32.32.42.32.22.22.41.41.31.4

None

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value124118115107100958988827872716967656361595858565453514956545251979592918164443734
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.75.35.55.24.94.74.94.94.54.34.14.34.24.24.14.14.03.93.93.83.73.63.63.43.23.43.22.82.85.35.25.15.14.53.72.52.12.1

None

us-gaap:AmortizationOfIntangibleAssets

us-gaap:AmortizationOfIntangibleAssets


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value6.56.57.46.16.15.86.06.86.47.16.95.55.55.65.65.55.35.45.65.55.24.95.25.25.14.95.15.15.15.15.35.35.14.84.95.25.15.26.05.96.0
Percentage of AmortizationOfIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1111038572625451535350462223232322212322222325252628293029272828292635476562382714
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.14.64.13.53.12.72.93.03.02.82.61.41.41.51.41.41.41.51.51.51.61.71.71.81.81.71.71.61.51.61.61.71.52.02.73.83.52.31.71.3

None

us-gaap:Goodwill

us-gaap:Goodwill


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value11911191119111911166108510851085108510851084955955955955949951919919919919851851850850780752871871870861861861842808747744744729488
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets54.853.456.557.357.253.760.260.560.160.262.257.358.659.359.861.061.860.361.060.560.357.457.356.455.446.243.746.747.947.446.847.748.746.745.942.642.044.045.944.4

us-gaap:Goodwill us-gaap:BusinessAcquisition

mant:H2MGroup


None
Period End2020-06-302020-03-312019-12-312019-09-30
Value25252525
Percentage of Goodwill2.12.12.12.1
Percentage of Assets1.21.11.21.2
Percentage of Assets mant:H2MGroup0.00.00.00.0

mant:KforceGovernmentSolutions


None
Period End2020-06-302019-12-312019-09-302019-06-30
Value80808080
Percentage of Goodwill6.76.76.76.9
Percentage of Assets3.73.83.93.9
Percentage of Assets mant:KforceGovernmentSolutions0.00.00.00.0

None

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value18819419620319616717117718218919414314615015415716014915415916415015515916215715215616016316717217617717716316616816873
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.78.79.39.89.68.39.59.910.110.511.18.69.09.39.710.110.59.810.210.510.810.110.410.610.69.38.98.48.88.99.19.510.09.810.19.39.410.010.66.7

None

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:FiniteLivedIntangibleAssetsNet


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value188194196203196167171177182189194143146150154157160149154159164150155159162157152156160163167172176177177163166168
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.78.79.39.89.68.39.59.910.110.511.18.69.09.39.710.110.59.810.210.510.810.110.410.610.69.38.98.48.88.99.19.510.09.810.19.39.410.6

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:ContractualRights


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302011-12-31
Value170175181186179149154159165170176128132137142145149137141146150135139144148144141146150153157161167
Percentage of FiniteLivedIntangibleAssetsNet90.490.492.091.891.389.789.990.090.490.291.089.290.891.691.992.692.891.991.891.391.490.290.090.391.292.093.193.693.793.993.894.194.4
Percentage of Assets7.87.98.69.08.87.48.68.99.19.510.17.78.18.58.99.49.79.09.49.69.99.19.49.59.78.68.27.88.38.48.59.09.5
Percentage of Assets us-gaap:ContractualRights0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:SoftwareDevelopment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-31
Value18181516171717171718171513121211111212131414151510
Percentage of FiniteLivedIntangibleAssetsNet9.69.68.08.28.710.310.110.09.69.89.010.89.28.48.17.47.28.18.28.68.69.710.09.76.9
Percentage of Assets0.80.80.70.80.80.81.01.01.01.01.00.90.80.80.80.70.80.80.80.90.91.01.01.00.6
Percentage of Assets us-gaap:SoftwareDevelopment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value1021111171161171190.0
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.00.0
Percentage of Assets4.75.05.65.65.75.90.0

None

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value13131314131312107.9437.3836.9234.0482.1992.0012.1512.3952.372.4252.6363.3253.8783.913.8844.3914.8373.2825.8469.89110101012121213101010106.672
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.60.60.70.70.70.70.60.40.40.40.20.10.10.10.20.20.20.20.20.30.30.30.30.30.20.30.50.60.60.60.70.70.70.80.60.60.60.70.6

None

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value338333299337306266243251255233228219196192191174176191179221239210223260303460296345317361387371353408387411465410347220
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets15.615.014.216.315.013.213.514.014.213.013.113.212.111.912.011.211.412.511.914.515.714.215.017.319.727.317.218.517.519.721.020.520.022.622.023.426.324.321.920.0

None

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1461691461611411281261261341341221071041061089695105106108112122149176180180226252238268315274269308280272309305272157
Percentage of AccountsPayableAndAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.87.66.97.86.96.47.07.07.47.57.06.46.46.66.86.26.26.97.17.17.48.310.111.711.710.713.113.613.114.617.115.215.217.115.915.617.518.117.114.3

None

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2929292826260.0
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.00.0
Percentage of Assets1.31.31.41.41.31.30.0

None

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:ContractWithCustomerLiabilityCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value4736274343282832332118
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.21.61.32.12.11.41.61.81.81.21.1

None

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxLiabilitiesNet


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value134135131108
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0
Percentage of Assets6.26.16.36.0

None

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value2710101.4281.5240.831110101010111112121311111011111111111111111111109.4039.348.8299.0757.8717.4937.4737.4197.4956.877
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.30.50.50.10.10.00.70.60.60.60.60.70.70.80.80.80.70.70.70.70.70.80.70.70.70.70.70.60.60.60.50.50.50.50.40.40.40.40.50.6

None

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value8997103981011040.0
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.00.0
Percentage of Assets4.14.44.94.85.05.20.0

None

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-31
Value15331510149014541431141314011388137013581342127212611251124112281210118911831174116811621154114511371135113312051194117911651148112911101089106810311006966817680
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets70.567.770.770.070.269.877.777.375.975.477.076.377.377.777.778.978.777.978.677.376.778.377.675.974.067.265.864.665.664.263.363.563.861.661.960.958.259.560.874.30.0

us-gaap:StockholdersEquity us-gaap:StatementClassOfStock

us-gaap:CommonClassA


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value0.2740.2730.2720.2710.270.2690.2680.2680.2660.2660.2630.260.2590.2580.2470.2440.2420.2410.2390.2340.226
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonClassA0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonClassB


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value0.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1330.136
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonClassB0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value-0.247-0.239-0.222-0.093-0.097-0.09-0.102-0.374-0.347-0.309-0.32-0.213-0.226-0.181-0.109-0.207-0.124-0.145-0.311-0.155-0.172-0.14
Percentage of StockholdersEquity-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0
Percentage of Assets-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value535529525519513508506504498496492481477471438428423417406385362336
Percentage of StockholdersEquity34.935.135.335.735.936.036.236.336.436.536.637.837.938.037.037.137.435.937.339.944.449.4
Percentage of Assets24.623.824.925.025.225.128.128.127.627.628.228.929.329.529.128.824.622.723.124.233.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value1006989973943926913903892880870860799792778754734718756692589464352
Percentage of StockholdersEquity65.765.565.364.964.764.664.564.364.364.164.062.962.962.763.763.663.464.963.661.056.951.9
Percentage of Assets46.344.446.245.445.445.150.149.748.848.349.348.048.648.750.149.441.741.139.337.142.20.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value-9.158-9.158-9.158-9.158-9.158-9.158-9.158-9.158-9.158-9.158-9.158-9.158-9.158-9.158-9.158-9.158-9.158-9.158-9.158-9.114-9.114-9.114
Percentage of StockholdersEquity-0.6-0.6-0.6-0.6-0.6-0.6-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0.8-0.8-0.8-0.8-0.8-0.9-1.1-1.3
Percentage of Assets-0.4-0.4-0.4-0.4-0.4-0.5-0.5-0.5-0.5-0.5-0.5-0.5-0.6-0.6-0.6-0.6-0.5-0.5-0.5-0.6-0.80.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:CommonStockValue us-gaap:StatementClassOfStock

us-gaap:CommonStockValue

us-gaap:CommonClassA


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value274000.0273000.0272000.0271000.0270000.0269000.0268000.0268000.0266000.0266000.0263000.0260000.0259000.0258000.0258000.0256000.0253000.0248000.0247000.0246000.0246000.0246000.0244000.0243000.0243000.0243000.0242000.0242000.0242000.0241000.0241000.0241000.0240000.0239000.0239000.0238000.0238000.0236000.0234000.0226000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
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:CommonClassA0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonClassB


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0132000.0133000.0133000.0136000.0
Percentage of CommonStockValue48.248.448.548.748.949.149.349.349.649.650.250.851.051.251.251.652.253.253.453.753.753.754.154.354.354.354.554.554.554.854.854.855.055.255.255.555.556.456.860.2
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:CommonClassB0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:AdditionalPaidInCapital

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value535529525519513508506504498496492481477474471464453438438434434432428426425423423422421419417415412409406402398393385362
Percentage of AdditionalPaidInCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets24.623.824.925.025.225.128.128.127.627.628.228.929.329.529.529.829.428.729.128.628.529.228.828.327.725.124.622.723.222.822.723.023.322.723.122.922.523.324.233.0

None

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1006989973943926913903892880870860799792785778773766759754748743738734728720720718792782768756743727710692677642621589464
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets46.344.446.245.445.445.150.149.748.848.349.348.048.648.748.749.749.849.850.149.348.849.849.448.346.942.641.742.543.041.941.141.141.139.439.338.636.336.737.142.2

None

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value-247000.0-239000.0-222000.0-93000.0-97000.0-90000.0-102000.0-374000.0-347000.0-309000.0-320000.0-213000.0-226000.0-235000.0-181000.0-120000.0-105000.0-109000.0-109000.0-269000.0-240000.0-232000.0-207000.0-140000.0-136000.0-137000.0-124000.0-157000.0-149000.0-146000.0-145000.0-383000.0-381000.0-362000.0-311000.0-203000.0-186000.0-172000.0-155000.0-172000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0

None

us-gaap:TreasuryStockValue

us-gaap:TreasuryStockValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value9158000.09158000.09158000.09158000.09158000.09158000.09158000.09158000.09158000.09158000.09158000.09158000.09158000.09158000.09158000.09158000.09158000.09158000.09158000.09158000.09158000.09158000.09158000.09158000.09158000.09158000.09158000.09158000.09158000.09158000.09158000.09158000.09158000.09158000.09158000.09158000.09158000.09158000.09114000.09114000.0
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.40.40.40.40.50.50.50.50.50.50.50.60.60.60.60.60.60.60.60.60.60.60.60.60.50.50.50.50.50.50.50.50.50.50.50.50.50.60.8

None

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value6242-11.5531097647-0.7755953-18.015375126361257-62.00597385243-8.6061751069-10.6576942
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues9.87.0-1.918.914.29.4-0.211.910.8-3.88.212.36.58.73.28.9-10.015.16.07.76.3-1.223.41.69.9-1.610.67.3

None

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-15838000.0-29772000.0-17241000.0-56831000.0-130670000.0-10154000.0-7551000.0-16681000.0-11146000.0-8966000.0-207470000.0-4651000.0-3525000.0-3395000.0-16920000.0-2764000.0-12990000.0-4292000.0-5382000.0-25438000.0-40897000.0-91953000.0-17239000.0-28091000.0-28192000.0-138880000.0-2046000.0-2170000.0-239060000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-2.5-4.9-2.9-9.8-24.3-2.0-1.5-3.4-2.3-1.9-44.9-1.1-0.9-0.8-4.3-0.5-2.0-0.7-0.8-4.0-6.0-13.5-2.3-3.7-4.0-19.9-0.3-0.3-40.7

None

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-105.135664.335-25.296-60.04478-1.331-34.754-45.0792730-6.758-6.667-6.443-1.658-7.482-7.22-7.737-7.765-7.776-6.558-18.6910.789-13.7245.42.2212.56688115
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-16.610.90.7-4.4-11.215.6-0.3-7.0-9.25.96.6-1.6-1.6-1.5-0.4-1.2-1.1-1.2-1.2-1.2-1.0-2.70.1-1.80.80.30.413.419.7

None

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value-58.93679-24.45927-114.611115-9.657
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-9.313.1-4.04.7-21.323.0-1.9

None

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value6242-11.5531097647-0.7755953-18.015375126361257-62.00597385243-8.6061751069-10.6576942
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues9.87.0-1.918.914.29.4-0.211.910.8-3.88.212.36.58.73.28.9-10.015.16.07.76.3-1.223.41.69.9-1.610.67.3

None

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2928402724212021192068151515131414131313121114157.7089.634-65.598172120202424253034363134313227
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues4.74.76.74.84.54.24.14.44.14.214.83.63.83.63.53.53.73.43.53.33.23.23.53.51.72.1-13.33.13.63.13.23.83.93.84.54.74.84.64.94.84.94.7

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value292840272421202119206815
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues4.74.76.74.84.54.24.14.44.14.214.83.6
Percentage of Revenues us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value627000.01024000.0323000.0585000.0-465000.0-227000.0-1760000.0484000.0553000.0306000.0311000.0927000.0841000.0333000.0-76000.0-1448000.0-106000.0-324000.0-934000.03260000.0-4665000.0738000.0414000.0-731000.0-645000.0393000.0-7229000.01542000.0-426000.0-728000.0-3192000.01104000.0472000.0-2592000.0-552000.0-2356000.01377000.0-996000.0-1652000.02214000.0-973000.0133000.0
Percentage of IncreaseDecreaseInOtherOperatingCapitalNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


None
Period End2020-06-302020-03-312019-06-302019-03-31
Value1134-15.624-14.527
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0

None

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DeferredIncomeTaxExpenseBenefit


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-1.5784.1485.9664.3052.712.758-1.5124.4384.8673.969-34.5261.764.2983.65311-1.9035.4953.59512104.5272.9666.1687.2122.4632.825-26.2673.7059.2222.425121.4531.5972.0296.986-8.015-1.138-1.0923.945-3.9313.5751.099
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2875000.02635000.02305000.01938000.01939000.01311000.01490000.01341000.01188000.01054000.02761000.01302000.01189000.01067000.01057000.0975000.0200000.01091000.0192000.01490000.01487000.01210000.01077000.01074000.01023000.01226000.01281000.01177000.01395000.01383000.01847000.01864000.02064000.02367000.02357000.02343000.02268000.02202000.02072000.02120000.0567000.02684000.0
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensation us-gaap:StatementClassOfStock

us-gaap:CommonClassA


None
Period End2020-06-302019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value1000.001000.00001000.00
Percentage of ShareBasedCompensation0.00.00.10.00.00.00.10.0

us-gaap:ShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value2874000.02635000.01938000.01938000.01311000.01341000.01188000.01053000.01302000.0
Percentage of ShareBasedCompensation100.0100.0100.099.9100.0100.0100.099.9100.0

None

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-15838000.0-29772000.0-17241000.0-56831000.0-130670000.0-10154000.0-7551000.0-16681000.0-11146000.0-8966000.0-207470000.0-4651000.0-3525000.0-3395000.0-16920000.0-2764000.0-12990000.0-4292000.0-5382000.0-25438000.0-40897000.0-91953000.0-17239000.0-28091000.0-28192000.0-138880000.0-2046000.0-2170000.0-239060000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-2.5-4.9-2.9-9.8-24.3-2.0-1.5-3.4-2.3-1.9-44.9-1.1-0.9-0.8-4.3-0.5-2.0-0.7-0.8-4.0-6.0-13.5-2.3-3.7-4.0-19.9-0.3-0.3-40.7

None

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value20251616147.2385.0858.6079.8486.574251.3891.8072.5781.9962.321.0682.2782.0140.9480.6681.5721.3271.0070.840.9093.8743.4511.4442.3183.3253.9550.753.6883.08815295.9915.6581.2531.6971.649
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-105.135664.335-25.296-60.04478-1.331-34.754-45.0792730-6.758-6.667-6.443-1.658-7.482-7.22-7.737-7.765-7.776-6.558-18.6910.789-13.7245.42.2212.56688115
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-16.610.90.7-4.4-11.215.6-0.3-7.0-9.25.96.6-1.6-1.6-1.5-0.4-1.2-1.1-1.2-1.2-1.2-1.0-2.70.1-1.80.80.30.413.419.7

None

us-gaap:PaymentsOfDividends

us-gaap:PaymentsOfDividends


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value1212101010109.9339.9239.9079.8618.2298.1688.1718.1378.1278.0858.0177.917.9067.8837.8987.8567.8427.8247.8377.8097.8297.8027.8217.7567.7727.7657.7767.716150.0150.00.00.0
Percentage of PaymentsOfDividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.00.00.0

None

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value933990.01077800.01136100.0997020.01131000.01271300.01093400.0921730.01116400.01190300.01169400.01184500.01290500.01349700.01160400.01322400.01674200.02204200.02495300.02631200.02882600.03007800.03391000.03125800.03336800.03457300.03400100.03138900.03348200.03564800.03421200.02966000.03078400.03114600.02886100.02618500.02692800.02473300.02718200.01961100.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-06-302010-12-312009-12-312008-12-31
Value55.2355.454.9849.4248.0247.3945.3442.4340.6340.5535.8831.5131.1931.1529.9329.2529.3729.3130.8630.9131.431.532.7633.3433.9833.8335.5136.7237.137.1438.6141.0541.040.5641.1442.5142.2241.8535.75
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

us-gaap:RestrictedStockUnitsRSU


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value200.0187250.045765.010720.0088955.03750.016793.0056170.00450.0500.054880.026788.01300.00104900.0002000.0103900.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod100.0100.0100.0100.00.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0100.00.0100.00.00.0100.0100.0

mant:CashOutflowofDeferredContractCosts

mant:CashOutflowofDeferredContractCosts


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value00862000.0766000.01892000.02817000.0474000.0295000.0676000.000
Percentage of CashOutflowofDeferredContractCosts0.00.0100.0100.0100.0100.0100.0100.0100.00.00.0

mant:ContractLossReserve

mant:ContractLossReserve


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0372000.0600000.0376000.0505000.0000
Percentage of ContractLossReserve0.0100.0100.0100.0100.00.00.00.0

mant:Incometaxexpensebenefitrelatedtotheexerciseofstockoptionsvestedcancellationsandthevestingofrestrictedstockandrestrictedstockunits

mant:Incometaxexpensebenefitrelatedtotheexerciseofstockoptionsvestedcancellationsandthevestingofrestrictedstockandrestrictedstockunits


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value-300000.0-500000.0-900000.0-500000.0-200000.0-1200000.0-200000.0
Percentage of Incometaxexpensebenefitrelatedtotheexerciseofstockoptionsvestedcancellationsandthevestingofrestrictedstockandrestrictedstockunits100.0100.0100.0100.0100.0100.0100.0

mant:IncreaseDecreaseinDefinedBenefitPlanAssetsforPlanBenefitsNoncurrent

mant:IncreaseDecreaseinDefinedBenefitPlanAssetsforPlanBenefitsNoncurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value4922000.0-4822000.01901000.0143000.01148000.03105000.0-3653000.01417000.0737000.0-255000.01204000.0896000.0785000.01287000.0385000.0851000.0508000.082000.0912000.0-1855000.0-3886000.0645000.0853000.0
Percentage of IncreaseDecreaseinDefinedBenefitPlanAssetsforPlanBenefitsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mant:IncreaseDecreaseinOperatingLeaseLiabilities

mant:IncreaseDecreaseinOperatingLeaseLiabilities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-7646000.0-6640000.0-7443000.0-7590000.0-6735000.0-6752000.000
Percentage of IncreaseDecreaseinOperatingLeaseLiabilities100.0100.0100.0100.0100.0100.00.00.0

mant:IncreaseDecreaserelatedtocumulativeeffectadjustmentduetoASC201802

mant:IncreaseDecreaserelatedtocumulativeeffectadjustmentduetoASC201802


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value00000-24000.0000
Percentage of IncreaseDecreaserelatedtocumulativeeffectadjustmentduetoASC2018020.00.00.00.00.0100.00.00.00.0

mant:IncreaseDecreaserelatedtocumulativeeffectadjustmentduetoASC201802 us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


None
Period End2020-06-302020-03-312019-06-302019-03-31
Value000-24000.0
Percentage of IncreaseDecreaserelatedtocumulativeeffectadjustmentduetoASC2018020.00.00.0100.0

mant:PaymentsforInternalUseSoftwareandSoftwaretobeSold

mant:PaymentsforInternalUseSoftwareandSoftwaretobeSold


None
Period End2020-06-302020-03-312019-06-302019-03-31
Value614000.04402000.0928000.01024000.0
Percentage of PaymentsforInternalUseSoftwareandSoftwaretobeSold100.0100.0100.0100.0

mant:RSUPerformanceFactorNumberofSharesIssued us-gaap:AwardType

mant:RSUPerformanceFactorNumberofSharesIssued

us-gaap:RestrictedStockUnitsRSU


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value01.00001.5001.5
Percentage of RSUPerformanceFactorNumberofSharesIssued0.0100.00.00.00.0100.00.00.0100.0

mant:StockIssuedDuringPeriodSharesRestrictedStockVesting

mant:StockIssuedDuringPeriodSharesRestrictedStockVesting


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value12979.035882.03853.0305.072188.00086233.0
Percentage of StockIssuedDuringPeriodSharesRestrictedStockVesting100.0100.0100.0100.0100.00.00.0100.0

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0777000.0-2979000.0119000.001357000.0-5446000.0002723000.000
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation0.0100.0100.0100.00.0100.0100.00.00.0100.00.00.0

us-gaap:CapitalExpendituresIncurredButNotYetPaid

us-gaap:CapitalExpendituresIncurredButNotYetPaid


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-06-302016-03-312013-12-312013-09-302012-12-312012-09-302011-09-30
Value1593000.0935000.0957000.0-982000.01358000.0228000.0-2900000.0-641000.03653000.01345000.0-141000.0-230000.0371000.00000-2195000.02169000.0-2858000.0
Percentage of CapitalExpendituresIncurredButNotYetPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0100.0100.0100.0

us-gaap:CommonStockDividendsPerShareCashPaid

us-gaap:CommonStockDividendsPerShareCashPaid


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value0.320.320.270.270.270.270.250.250.250.250.210.210.210.210.210.210.210.210.210.210.210.210.210.210.210.210.210.210.210.210.210.210.210.21
Percentage of CommonStockDividendsPerShareCashPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress

us-gaap:ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value5800000.03300000.05900000.03500000.03200000.04500000.04300000.0
Percentage of ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:ContractWithCustomerLiabilityRevenueRecognized


None
Period End2020-06-302019-09-302019-06-302018-09-302018-06-30
Value1.80.94.54.23.5
Percentage of ContractWithCustomerLiabilityRevenueRecognized100.0100.0100.0100.0100.0

us-gaap:Depreciation

us-gaap:Depreciation


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value9.78.88.26.96.26.36.46.46.85.93.42.02.21.91.81.8
Percentage of Depreciation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationAndAmortization

us-gaap:DepreciationAndAmortization


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value17161613121212131313107.8357.8487.6747.6097.4327.5287.6227.9317.7987.3697.1787.5067.6897.6597.5927.6357.5377.6467.6867.9747.472152126147.1397.2527.4627.247.4036.773
Percentage of DepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DistributedEarnings

us-gaap:DistributedEarnings


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value1212101010109.949.9289.8929.8678.2348.1748.1618.148.1318.0898.0047.9147.9117.8877.8857.867.8467.8297.8247.8147.8117.8047.8027.7837.7787.7717.756-7.745-46.2850.0150.00.00.00.0
Percentage of DistributedEarnings100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.00.00.00.0

us-gaap:Dividends us-gaap:StatementEquityComponents

us-gaap:Dividends

us-gaap:RetainedEarnings


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1212101010109.949.9289.8929.8678.2358.173
Percentage of Dividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeasePrincipalPayments

us-gaap:FinanceLeasePrincipalPayments


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value41000.035000.037000.037000.037000.025000.00000
Percentage of FinanceLeasePrincipalPayments100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:FinitelivedIntangibleAssetsAcquired1 us-gaap:BusinessAcquisition, us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FinitelivedIntangibleAssetsAcquired1

mant:H2MGroup, us-gaap:CustomerRelationships


None
Period End2020-06-302020-03-312019-12-31
Value0.09.60.0
Percentage of FinitelivedIntangibleAssetsAcquired10.0100.00.0

mant:H2MGroup, us-gaap:OrderOrProductionBacklog


None
Period End2020-06-302020-03-312019-12-31
Value0.02.30.0
Percentage of FinitelivedIntangibleAssetsAcquired10.024.00.0

us-gaap:GainLossOnSaleOfPropertyPlantEquipment

us-gaap:GainLossOnSaleOfPropertyPlantEquipment


None
Period End2020-03-312019-03-312016-12-312016-09-302015-12-312015-09-302014-12-312014-09-302013-12-312013-09-302012-12-312012-09-30
Value-22000.0012000.00-39000.00002000.0000
Percentage of GainLossOnSaleOfPropertyPlantEquipment100.00.0100.00.0100.00.00.00.0100.00.00.00.0

us-gaap:IncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromEquityMethodInvestments


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value0-1000.0016000.00-12000.0-5000.08000.0-21000.040000.0-37000.072000.036000.0-31000.050000.0-71000.060000.068000.0150000.0-126000.0115000.00106000.0-266000.0-65000.0-57000.0-110000.0-750000.00000
Percentage of IncomeLossFromEquityMethodInvestments0.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-21.2423-18.038177.5993.9230.381-0.0510.0174.980.6743.503-2.074-2.6448.7561.761-9.595-1.084-2.375-4.353-11.677-25.698-27.184-3.333-9.601-46.987-26.23414-30.286-47.444412.904-38.241220.698-36.2058.1662533-3.407-26.67635
Percentage of IncreaseDecreaseInAccountsPayableAndAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInContractWithCustomerLiability

us-gaap:IncreaseDecreaseInContractWithCustomerLiability


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value118.926-16.2710.365140.621-4.146-0.70111-0.397
Percentage of IncreaseDecreaseInContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInDeferredCompensation

us-gaap:IncreaseDecreaseInDeferredCompensation


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value4062000.0-8089000.01898000.0678000.01738000.0239000.0-4483000.01859000.01330000.0-2224000.02106000.01330000.01155000.0-655000.01089000.0
Percentage of IncreaseDecreaseInDeferredCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value160.968-7.0348.4778.027-6.674-3.8124.28911-9.873-0.6475.9334.1633.6464.112-0.91-10.87214-10.93817-13.0338.818-11.55414-13.6467.622-20.16611-9.91222-28.6339.633-7.3974.344-11.818
Percentage of IncreaseDecreaseInEmployeeRelatedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInIncomeTaxesReceivable

us-gaap:IncreaseDecreaseInIncomeTaxesReceivable


None
Period End2020-06-302020-03-312019-06-302019-03-31
Value-10.007-5.4031.7110.0
Percentage of IncreaseDecreaseInIncomeTaxesReceivable100.0100.0100.00.0

us-gaap:IncreaseDecreaseInOtherCurrentAssets

us-gaap:IncreaseDecreaseInOtherCurrentAssets


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-1.1280.102-5.1272.252-0.046-1.139-3.055-1.942-10.053-2.36117-4.401
Percentage of IncreaseDecreaseInOtherCurrentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInPrepaidExpense

us-gaap:IncreaseDecreaseInPrepaidExpense


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value107.62-6.028-8.095121.463-7.835-9.468125.616-2.494-1.493
Percentage of IncreaseDecreaseInPrepaidExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements us-gaap:StatementClassOfStock

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:CommonClassA


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value327000.0375000.022000.0306000.0229000.0235000.0-16000.0322000.0288000.0410000.060000.0245000.0209000.0231000.014000.0265000.0209000.091000.03000.065000.0101000.0153000.02000.065000.069000.069000.0-37000.038000.030000.044000.0-2000.018000.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestIncomeOther

us-gaap:InterestIncomeOther


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value137000.050000.049000.090000.0121000.0190000.076000.043000.027000.015000.015000.037000.028000.024000.022000.036000.019000.044000.025000.044000.024000.067000.0127000.059000.031000.0177000.0215000.0167000.0113000.0113000.087000.0118000.0
Percentage of InterestIncomeOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherNoncashExpense

us-gaap:OtherNoncashExpense


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value7.3625.9956.677.4466.6896.8140.00.00.00.0
Percentage of OtherNoncashExpense100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0777000.027000.0119000.001357000.00002723000.00000
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation0.0100.0100.0100.00.0100.00.00.00.0100.00.00.00.00.0

us-gaap:ProceedsFromLinesOfCredit

us-gaap:ProceedsFromLinesOfCredit


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value3023115813293240741431671911360.00.00.00.00.00.00.01.073871.510.070800.00.00.00.00.00.00.01.08.00.00.00.00.0
Percentage of ProceedsFromLinesOfCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.0100.0100.00.00.00.00.0

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ProceedsFromStockOptionsExercised


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2.8272.0553.7394.1773.2971.6821.1024.6690.8285.9967.6932.7331.5041.6945.9269.544140.7813.3380.1780.1524.22.0440.640.6050.6330.6230.3150.2960.5330.0320.00.01.1150.5210.7811.6435.2412.2722.5492.0956.891
Percentage of ProceedsFromStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfLinesOfCredit

us-gaap:RepaymentsOfLinesOfCredit


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value125153147151145151671722031561050.00.00.00.00.00.00.011115341.510.0125250.00.00.00.00.00.00.017-8.00.00.00.00.0
Percentage of RepaymentsOfLinesOfCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.0100.0100.00.00.00.00.0

us-gaap:RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value63000.00016000.0149000.0203000.00000
Percentage of RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability100.00.00.0100.0100.0100.00.00.00.00.0

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-1.141.443126.3854.2187.9240.00.00.00.0
Percentage of RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod

us-gaap:RestrictedStockUnitsRSU


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value42653.01317.0617.01976.05434.03267.02410.03325.06175.01350.09800.0600.02075.085050.04850.05300.09150.0800.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue

us-gaap:RestrictedStockUnitsRSU


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value11.7851.810-0.02-0.1952.090.912.78035.290.21-0.010.0130.790.04-0.16-1.2430.92
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue100.0100.00.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:RestrictedStockUnitsRSU


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value068.296.161.67051.60.011.87052.0900.030.0235.291.120.12028.2600-0.0730.92
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.0100.0100.0100.00.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0100.00.0100.00.00.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod

us-gaap:RestrictedStockUnitsRSU


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value035882.01463.05514.0250.053688.000087200.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod0.0100.0100.0100.0100.0100.00.00.00.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue

us-gaap:RestrictedStockUnitsRSU


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value051.80.291.80.140.5600028.4
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue0.0100.0100.0100.0100.0100.00.00.00.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value1.4771.752.6033.7392.221.0790.7195.5370.6295.5265.2531.260.4880.2022.6173.1912.960.090.4920.0170.0090.830.2910.2020.1190.1420.070.1060.0920.1320.0180.00.00.1970.4540.085
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value87362.011084.011499.026171.049569.021265.018749.038369.048553.016641.016383.011987.09967.022904.054858.049091.036592.0348500.0111220.0272950.0124640.0340450.0109240.0185780.0102250.0400030.0181910.0194270.0202630.0320230.0118460.0122470.081166.090931.0553900.0-72748.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value5.0855.810.320.281.1349.480.260.350.9142.330.94-0.020.7332.15-0.92-0.81-1.0440.68-0.72-2.52-3.2246.02-0.451.59-2.4243.03-0.431.570.0838.620.27-0.611.7637.85-0.91-0.1
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value00233940.03000.02775.0250230.0223020.02400.00241410.0262640.05525.00265860.098221.012500.03000.086217.097513.028000.05000.0107340.0454570.0010000.0482000.0468680.000488850.0575700.010000.045000.0355950.0347000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross0.00.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value1.9145.192.12-0.543.7532.610.42-0.150.3629.42-0.12-1.69-1.532.65-0.070.291.4227.6-0.14-0.01027.661.33-1.160.8323.781.55-0.08-0.0521.33-0.73
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value01700000.01300000.0001200000.0800000.000700000.0800000.0100000.00800000.01200000.00100000.01300000.01800000.0001800000.01800000.0002600000.01500000.0700000.0100000.03800000.01400000.0
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue10.0100.0100.00.00.0100.0100.00.00.0100.0100.0100.00.0100.0100.00.0100.0100.0100.00.00.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value56436.047224.083372.0110790.093496.051089.032598.0158740.025337.0203850.0261340.099523.049212.053724.0205370.0315210.0496360.028857.0122180.06500.05501.0150140.080146.025200.028258.024767.025567.015000.014000.025000.02000.00036542.029350.021500.047315.0173000.091176.00
Percentage of StockIssuedDuringPeriodSharesStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.00.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised us-gaap:StatementClassOfStock

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised

us-gaap:CommonClassA


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.00.0010.0010.0010.00.0010.00.0020.00.0020.0030.001
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised0.0100.0100.0100.00.0100.00.0100.00.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value2.8272.0543.7384.1763.2971.6811.1024.6670.8285.9947.692.732
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised0.0205400.0373800.0417600.00.0168100.00.0233350.00.0299700.0256333.3273200.0

us-gaap:UndistributedEarnings

us-gaap:UndistributedEarnings


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value17152917131010111010607.0087.46.8885.5986.5756.7785.3025.985.1414.5653.8986.6197.658-0.1161.82-73.4099.91413121216161715342131343132
Percentage of UndistributedEarnings100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:EntityCommonStockSharesOutstanding us-gaap:StatementClassOfStock

dei:EntityCommonStockSharesOutstanding

us-gaap:CommonClassA


None
Period End2020-07-292020-04-292020-02-192019-10-302019-07-312019-05-012019-02-202018-10-312018-08-012018-05-022018-02-212017-10-312017-08-022017-05-012017-02-202016-11-022016-07-272016-04-272016-02-172015-10-282015-07-292015-04-292015-02-182014-10-292014-07-302014-04-302014-02-192013-10-302013-07-302013-05-012013-02-202012-10-312012-08-012012-05-022012-02-212011-10-312011-07-222011-04-272011-02-23
Value272726262626262626262625252525252524242424242424242423232323232323232323232323
Percentage of EntityCommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonClassB


None
Period End2020-07-292020-04-292020-02-192019-10-302019-07-312019-05-012019-02-202018-10-312018-08-012018-05-022018-02-212017-10-312017-08-022017-05-012017-02-202016-11-022016-07-272016-04-272016-02-172015-10-282015-07-292015-04-292015-02-182014-10-292014-07-302014-04-302014-02-192013-10-302013-07-302013-05-012013-02-202012-10-312012-08-012012-05-022012-02-212011-10-312011-07-222011-04-272011-02-23
Value131313131313131313131313131313131313131313131313131313131313131313131313131313
Percentage of EntityCommonStockSharesOutstanding48.648.748.849.049.249.449.649.750.050.050.651.151.351.551.652.052.753.853.954.154.254.254.554.854.854.955.355.055.155.155.355.455.655.655.755.956.056.857.2

us-gaap:AllowanceForDoubtfulAccountsReceivable

us-gaap:AllowanceForDoubtfulAccountsReceivable


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value1411117.3356.4386.2066.2336.6956.7896.2986.157
Percentage of AllowanceForDoubtfulAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BilledContractReceivables

us-gaap:BilledContractReceivables


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value357332311292316304301281275281236260249246247240228222233214282266319284309299370395411430420359401429422432401411
Percentage of BilledContractReceivables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents

mant:H2MGroup


None
Period End2020-06-302019-12-312019-09-30
Value29000.029000.015000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents100.0100.0100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther

mant:H2MGroup


None
Period End2020-06-302019-12-312019-09-30
Value5000.05000.02000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther100.0100.0100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets

mant:H2MGroup


None
Period End2020-06-302019-12-312019-09-30
Value188000.0188000.0199000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets100.0100.0100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables

mant:H2MGroup


None
Period End2020-06-302019-12-312019-09-30
Value4.1874.1874.011
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables100.0100.0100.0

mant:KforceGovernmentSolutions


None
Period End2020-06-302019-12-312019-09-30
Value171717
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables407.7407.7444.7

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable

mant:H2MGroup


None
Period End2020-06-302019-12-312019-09-30
Value1956000.01946000.01775000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable100.0100.0100.0

mant:KforceGovernmentSolutions


None
Period End2020-06-302019-12-312019-09-30
Value6895000.06895000.06887000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable352.5354.3388.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther

mant:H2MGroup


None
Period End2020-06-302019-12-312019-09-30
Value1023000.01023000.01000000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther100.0100.0100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet

mant:H2MGroup


None
Period End2020-06-302019-12-312019-09-30
Value383838
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet100.0100.0100.0

mant:KforceGovernmentSolutions


None
Period End2020-06-302019-12-312019-09-30
Value114114114
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet297.7297.7295.3

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment

mant:H2MGroup


None
Period End2020-06-302019-12-312019-09-30
Value56000.056000.057000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment100.0100.0100.0

us-gaap:ContractWithCustomerLiability

us-gaap:ContractWithCustomerLiability


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value4736274343282832332118
Percentage of ContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredCompensationLiabilityClassifiedNoncurrent

us-gaap:DeferredCompensationLiabilityClassifiedNoncurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value31273533323130353332343230
Percentage of DeferredCompensationLiabilityClassifiedNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredCompensationPlanAssets

us-gaap:DeferredCompensationPlanAssets


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value32313634343330343433333229
Percentage of DeferredCompensationPlanAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1149897104948289928877878478747064657560715466576854665676657552807178728296786455
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseRightOfUseAsset

us-gaap:FinanceLeaseRightOfUseAsset


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value704000.0641000.0641000.0669000.0610000.0504000.00
Percentage of FinanceLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.00.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value26926325825224624023422822221520820219619118516317416916315815215114614113513813312812311811311110610196918676
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:ContractualRights


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302011-12-31
Value23122622121521120520119619018517917216816315813714814414013513113012612211711310910510096928775
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization85.986.185.885.585.685.685.785.885.985.885.885.685.685.585.584.085.485.585.685.885.986.486.686.786.882.382.282.282.081.881.778.878.2

us-gaap:SoftwareDevelopment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-31
Value37363636353433323130292928272626252423222120191823
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization14.113.914.214.514.414.414.314.214.114.214.114.414.414.414.516.014.614.514.414.214.113.513.313.317.7

us-gaap:FiniteLivedIntangibleAssetsGross

us-gaap:FiniteLivedIntangibleAssetsGross


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value458457454455443407406405404405402345342341340320335318317318317301301300298295285284283282280283282278274254252244
Percentage of FiniteLivedIntangibleAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsGross us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:ContractualRights


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302011-12-31
Value402402402402390355355355355355355301301301301282298281281281281266266266266258251251251250249249243
Percentage of FiniteLivedIntangibleAssetsGross87.887.988.588.388.287.387.587.788.087.988.387.187.888.288.488.288.988.588.688.688.788.388.388.689.287.588.088.488.688.888.988.188.7

us-gaap:SoftwareDevelopment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-31
Value56555253525150504849464441403937373636363535353434
Percentage of FiniteLivedIntangibleAssetsGross12.212.111.511.711.812.712.512.312.012.111.612.912.211.811.611.711.011.511.411.411.311.611.611.411.9

us-gaap:IncomeTaxesReceivable

us-gaap:IncomeTaxesReceivable


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value6.58616210.0
Percentage of IncomeTaxesReceivable100.0100.0100.00.0

us-gaap:Investments

us-gaap:Investments


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value11111111111111111111111111111111111010100.143
Percentage of Investments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LettersOfCreditOutstandingAmount us-gaap:CreditFacility, us-gaap:LineOfCreditFacility

us-gaap:LettersOfCreditOutstandingAmount

us-gaap:LetterOfCredit, mant:BankofAmericaSyndicate


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-31
Value6.35.95.87.77.77.79.61515151515191923191919190.80.2
Percentage of LettersOfCreditOutstandingAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LettersOfCreditOutstandingAmount us-gaap:CreditFacility, us-gaap:LineOfCreditFacility, us-gaap:LossContingenciesByNatureOfContingency

us-gaap:LetterOfCredit, mant:BankofAmericaSyndicate, us-gaap:PerformanceGuarantee


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value5.75.75.77.67.60.0149.5151515151515151919
Percentage of LettersOfCreditOutstandingAmount90.596.698.398.798.70.299.099.399.399.399.399.378.878.882.399.5

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity us-gaap:CreditFacility, us-gaap:LineOfCreditFacility

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity

us-gaap:LetterOfCredit, mant:BankofAmericaSyndicate


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-08-172017-06-302017-03-312016-12-312016-09-302016-06-302016-05-172016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-06-132014-03-312013-12-312013-09-30
Value75757575757575757575757575505050505050252525252525252525252525
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongTermLineOfCredit

us-gaap:LongTermLineOfCredit


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value20115362543967.50.02965310.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of LongTermLineOfCredit100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:LongTermLineOfCredit us-gaap:CreditFacility, us-gaap:LineOfCreditFacility

us-gaap:RevolvingCreditFacility, mant:BankofAmericaSyndicate


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value20115362543967.50.0296531
Percentage of LongTermLineOfCredit100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0

us-gaap:PrepaidExpenseCurrent

us-gaap:PrepaidExpenseCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value38272026332123314022
Percentage of PrepaidExpenseCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueRemainingPerformanceObligation

us-gaap:RevenueRemainingPerformanceObligation


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2200240030003100270027002800280029002300
Percentage of RevenueRemainingPerformanceObligation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber

us-gaap:RestrictedStock


None
Period End2020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302015-12-312015-09-302015-06-302014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302011-12-312010-12-31
Value24000.024000.024000.024000.020000.024000.024000.024000.024000.024000.018000.018000.018000.021000.021000.021000.021000.021000.021000.021000.021000.024000.024000.024000.027333.027333.030667.026000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStockUnitsRSU


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value318420.0360880.0210830.0167140.0163910.0169600.0137600.0136260.0122790.0128960.0161340.0174440.0174590.0176170.0206340.0184400.0188400.0197550.093450.096600.0102950.0103900.00
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber1326.80.0878.4696.4683.00.0688.0567.7511.60.0672.3726.8727.50.01146.31024.41046.70.0445.0460.0490.20.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:RestrictedStock


None
Period End2020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302015-12-312015-09-302014-12-312013-12-31
Value71.1162.6662.6662.6652.8352.8352.8337.937.937.933.8433.8433.8428.9828.9830.6127.65
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStockUnitsRSU


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value62.2162.4155.3150.4849.7349.8145.1144.8242.742.3531.3631.4331.4131.3930.129.5329.4729.4730.8430.850
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue87.50.088.380.679.40.085.484.880.80.082.782.982.90.088.987.387.10.0106.4106.50.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-31
Value13192821208.8468.7761914171614135.5931411146.623.5830.041.891114.7220.4313.6613.7034.4882.6310.4620.950.6260.3590.2810.4681.0961.559.1177.73117
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value551340.0637720.0845560.0775430.0800660.0847740.0774400.0688330.0730870.0779760.0684980.0618770.0633820.0646460.0562930.0744780.0766460.0790380.0991290.01281200.01339500.01382700.01673500.01595400.01622500.01682900.01567900.01461200.01698000.0
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value11.5211.5510.889.449.429.48.777.667.67.556.235.055.035.034.664.624.64.614.744.784.784.784.834.964.974.975.515.747.37
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStockShares

us-gaap:TreasuryStockShares


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value244110.0244110.0244110.0244110.0244110.0244110.0244110.0244110.0244110.0244110.0244110.0244110.0244110.0244110.0244110.0244110.0244110.0244110.0244110.0244110.0244110.0244110.0244110.0244110.0244110.0244110.0244110.0244110.0244110.0244110.0244110.0244110.0244110.0244110.0244110.0244110.0244110.0244110.0243040.0243040.0
Percentage of TreasuryStockShares100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnbilledReceivablesCurrent

us-gaap:UnbilledReceivablesCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value10011299828292109921028981
Percentage of UnbilledReceivablesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Line plots across dimensions of each concept


us-gaap:CommonStockValue
us-gaap:StatementClassOfStock
(None,)
None
us-gaap:CommonStockSharesIssued
us-gaap:StatementClassOfStock
(None,)
None
us-gaap:CommonStockSharesOutstanding
us-gaap:StatementClassOfStock
(None,)
None
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding
us-gaap:StatementClassOfStock
(None,)
None
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic
us-gaap:StatementClassOfStock
(None,)
None
us-gaap:EarningsPerShareBasic
us-gaap:StatementClassOfStock
(None,)
None
us-gaap:EarningsPerShareDiluted
us-gaap:StatementClassOfStock
(None,)
None
us-gaap:Revenues
mant:ContractorType
(None,)
None
us-gaap:Revenues
us-gaap:MajorCustomers
(None,)
None
us-gaap:Revenues
us-gaap:ContractWithCustomerBasisOfPricing
(None,)
None
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic
us-gaap:StatementClassOfStock
(None,)
None
us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted
us-gaap:StatementClassOfStock
(None,)
None
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
None
us-gaap:StockholdersEquity
us-gaap:StatementClassOfStock
(None,)
None
us-gaap:Goodwill
us-gaap:BusinessAcquisition
(None,)
None
us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
(None,)
None
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
None
us-gaap:StockholdersEquity
us-gaap:StatementClassOfStock
(None,)
None
us-gaap:CommonStockValue
us-gaap:StatementClassOfStock
(None,)
None