BWXT


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

Table of contents



us-gaap:CommonStockValue

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:CostOfRevenue
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:CostsAndExpenses

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:IncomeTaxExpenseBenefit
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:IncomeTaxesPaidNet

us-gaap:InterestExpense

us-gaap:InterestPaidNet

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

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

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:ProfitLoss
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:ResearchAndDevelopmentExpense

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:ContractWithCustomerBasisOfPricing, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:MajorCustomers, us-gaap:StatementGeographical, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments, us-gaap:TimingOfTransferOfGoodOrService
us-gaap:ConsolidationItems, us-gaap:StatementGeographical, us-gaap:StatementBusinessSegments
us-gaap:ContractWithCustomerBasisOfPricing
us-gaap:ContractWithCustomerBasisOfPricing, us-gaap:StatementBusinessSegments
us-gaap:MajorCustomers, us-gaap:StatementGeographical
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents
us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments, us-gaap:TimingOfTransferOfGoodOrService
us-gaap:StatementGeographical
us-gaap:TimingOfTransferOfGoodOrService

us-gaap:Revenues

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:Assets
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:LiabilitiesAndStockholdersEquity
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:StockholdersEquity

us-gaap:AssetsCurrent
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:ShortTermInvestments

us-gaap:AccountsReceivableNetCurrent

us-gaap:InventoryNet

us-gaap:OtherAssetsCurrent
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:AssetsNoncurrent

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:PropertyPlantAndEquipmentNet
us-gaap:StatementGeographical

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:Goodwill
us-gaap:StatementBusinessSegments

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:DeferredTaxAssetsLiabilitiesNet

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:EquitySecuritiesFvNi
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType
us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType
us-gaap:FinancialInstrument

us-gaap:AccountsPayableCurrent

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:LiabilitiesCurrent
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:LongTermDebtCurrent

us-gaap:OperatingLeaseLiabilityCurrent

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

us-gaap:LongTermDebtNoncurrent

us-gaap:MinorityInterest

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:TreasuryStockValue

us-gaap:MinorityInterest

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:AmortizationOfFinancingCosts

us-gaap:DepreciationDepletionAndAmortization

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss

us-gaap:ProfitLoss
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquireInvestments

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:RepaymentsOfLongTermDebt

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:Dividends
us-gaap:StatementEquityComponents

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:EffectiveIncomeTaxRateContinuingOperations
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxAssetsNet

us-gaap:UnrecognizedTaxBenefits

us-gaap:DeferredTaxAssetsValuationAllowance

bwxt:DefinedBenefitPlanNetPeriodicBenefitCostCreditExcludingServiceCosts
us-gaap:StatementGeographical, us-gaap:UnusualRiskOrUncertaintyByNature
bwxt:GovernmentSubsidiesRecognizedToOffsetExpensesCOVID19

bwxt:IncreaseDecreaseContractsInProgressAndAdvanceBillingsOnContracts

bwxt:IncreaseDecreaseInPensionPostretirementAndAccruedEmployeeBenefits

bwxt:IncreaseDecreaseOfDebtIssuanceCostsDuringPeriod

bwxt:NumberOfLargeHeavyComponentsSuppliedToWorldwide

bwxt:OtherIncomeExpenseNet
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

bwxt:RecognitionOfGainsLossesForPensionAndPostretirementPlans

us-gaap:CapitalExpendituresIncurredButNotYetPaid

us-gaap:CommonStockDividendsPerShareDeclared

us-gaap:ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInEstimateOfTransactionPrice

us-gaap:ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueChangeInEstimateOfTransactionPrice

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:DefinedBenefitPlanActuarialGainLoss
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanInterestCost
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost

us-gaap:DefinedBenefitPlanServiceCost
us-gaap:RetirementPlanType

us-gaap:DerivativeInstrumentsGainLossReclassificationFromAccumulatedOCIToIncomeEstimatedNetAmountToBeTransferred

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense

us-gaap:GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments

us-gaap:GainLossOnSalesOfAssetsAndAssetImpairmentCharges

us-gaap:IncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions

us-gaap:IncreaseDecreaseInAccountsAndOtherReceivables

us-gaap:IncreaseDecreaseInContractWithCustomerLiability

us-gaap:IncreaseDecreaseInDepositOtherAssets

us-gaap:IncreaseDecreaseInIncomeTaxes

us-gaap:IncreaseDecreaseInOtherAccruedLiabilities

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:InvestmentIncomeInterest

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax

us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax

us-gaap:OtherOperatingActivitiesCashFlowStatement

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsOfDebtIssuanceCosts

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsToAcquireBusinessesAndInterestInAffiliates

us-gaap:ProceedsFromIssuanceOfDebt

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromRepaymentsOfBankOverdrafts

us-gaap:ProceedsFromSaleMaturityAndCollectionsOfInvestments

us-gaap:ProceedsFromStockOptionsExercised
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
us-gaap:RedemptionPremium

us-gaap:StockGrantedDuringPeriodValueSharebasedCompensation
us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised
us-gaap:StatementEquityComponents

us-gaap:TreasuryStockValueAcquiredCostMethod
us-gaap:StatementEquityComponents
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
us-gaap:WriteOffOfDeferredDebtIssuanceCost

bwxt:AccountsReceivableRetainage

bwxt:AssetsExcludingAssetsRelatedToDiscontinuedOperations
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
bwxt:AvailableForSaleDebtSecuritiesAndEquitySecuritiesFVNI
us-gaap:FairValueByMeasurementFrequency

bwxt:BillingsInExcessOfCost1

bwxt:BondsIssuedAndOutstanding
us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments
bwxt:BusinessCombinationContingentConsiderationRecognizedInPurchasePrice

bwxt:CostInExcessOfBillingsCurrent1

bwxt:DebtSecuritiesAvailableForSaleAndEquitySecuritiesFVNI

bwxt:DebtSecuritiesAvailableForSaleAndEquitySecuritiesFVNIAccumulatedGrossUnrealizedGainBeforeTax

bwxt:DebtSecuritiesAvailableForSaleAndEquitySecuritiesFVNIAmortizedCost

bwxt:DebtSecuritiesTradingAndEquitySecuritiesAccumulatedGrossUnrealizedLossBeforeTax

bwxt:DeferredTaxAssetsEnvironmentalAndProductsLiabilities

bwxt:DeferredTaxAssetsLeaseLiabilities

bwxt:DeferredTaxAssetsLongTermContracts

bwxt:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedPayrollTaxes

bwxt:DeferredTaxLiabilitiesRightOfUseAssets

bwxt:DefinedBenefitPlanAlternativeInvestmentsFairValueofPlanAssets
us-gaap:DefinedBenefitPlanByPlanAssetCategories
us-gaap:RetirementPlanType
bwxt:DefinedBenefitPlanPlansWithAssetsInExcessOfAccumulatedBenefitObligationAggregateAccumulatedBenefitObligation
us-gaap:RetirementPlanType
bwxt:DefinedBenefitPlanPlansWithAssetsInExcessOfAccumulatedBenefitObligationAggregateFairValueOfPlanAssets
us-gaap:RetirementPlanType
bwxt:DefinedBenefitPlanPlansWithAssetsInExcessOfAccumulatedBenefitObligationAggregateProjectedBenefitObligation

bwxt:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearSix

bwxt:LongTermDebtGrossExcludingCurrentMaturities

bwxt:LongTermInvestmentsExcludingInvestmentsInUnconsolidatedAffiliates

bwxt:RestrictedCashAndCashEquivalentsIncludingPortionFromOtherAssets
us-gaap:LossContingenciesByNatureOfContingency
us-gaap:AccrualForEnvironmentalLossContingencies
us-gaap:RetirementPlanType
us-gaap:AccruedEmployeeBenefitsCurrentAndNoncurrent
us-gaap:LossContingenciesByNatureOfContingency
us-gaap:AccruedEnvironmentalLossContingenciesCurrent

us-gaap:AccruedEnvironmentalLossContingenciesNoncurrent

us-gaap:AllowanceForDoubtfulAccountsReceivable

us-gaap:AssetRetirementObligation

us-gaap:AssetRetirementObligationCurrent
us-gaap:FinancialInstrument
us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
us-gaap:FinancialInstrument
us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
us-gaap:FinancialInstrument
us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:AvailableForSaleSecuritiesDebtSecurities
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType
us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType
us-gaap:FinancialInstrument

us-gaap:BankOverdrafts
us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments
us-gaap:BusinessCombinationContingentConsiderationLiability

us-gaap:ContractWithCustomerAssetNetCurrent
us-gaap:BalanceSheetLocation
us-gaap:StatementScenario, us-gaap:BalanceSheetLocation

us-gaap:ContractWithCustomerLiability
us-gaap:CreditFacility, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentCarryingAmount
us-gaap:LongtermDebtType
us-gaap:DebtInstrument
us-gaap:DebtInstrumentInterestRateEffectivePercentage

us-gaap:DeferredFinanceCostsNet
us-gaap:LongtermDebtType

us-gaap:DeferredIncomeTaxAssetsNet
us-gaap:IncomeTaxAuthority
us-gaap:DeferredTaxAssetsCapitalLossCarryforwards

us-gaap:DeferredTaxAssetsEquityMethodInvestments

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsTaxCreditCarryforwards

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsCompensatedAbsences

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantyReserves

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilityNotRecognizedAmountOfUnrecognizedDeferredTaxLiabilityUndistributedEarningsOfForeignSubsidiaries

us-gaap:DefinedBenefitPensionPlanLiabilitiesNoncurrent
us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheet
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanBenefitObligation
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo
us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets
us-gaap:DefinedBenefitPlanByPlanAssetCategories
us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanFundedStatusOfPlan

us-gaap:DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation
us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage

us-gaap:DefinedBenefitPlanUltimateHealthCareCostTrendRate1
us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeFairValueOfDerivativeNet

us-gaap:DerivativeNotionalAmount
us-gaap:BalanceSheetLocation
us-gaap:DueFromRelatedParties

us-gaap:EmployeeRelatedLiabilitiesCurrent
us-gaap:PlanName
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity

us-gaap:EquityMethodInvestmentUnderlyingEquityInNetAssets

us-gaap:EquityMethodInvestments
us-gaap:FinancialInstrument
us-gaap:EquitySecuritiesFvNiCost

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
us-gaap:DebtInstrument
us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:LongTermDebtFairValue
us-gaap:FinancialInstrument
us-gaap:LongtermDebtType

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear

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

us-gaap:OperatingLossCarryforwardsValuationAllowance
us-gaap:IncomeTaxAuthority

us-gaap:OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent
us-gaap:RetirementPlanType

us-gaap:OtherReceivables

us-gaap:ProductWarrantyAccrualClassifiedCurrent

us-gaap:RestrictedCashAndCashEquivalents
us-gaap:RestrictedCashAndCashEquivalentsCashAndCashEquivalents

us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue

us-gaap:RestrictedCashAndCashEquivalentsNoncurrent

us-gaap:RetainedEarningsUndistributedEarningsFromEquityMethodInvestees

us-gaap:RevenueRemainingPerformanceObligation
us-gaap:StatementBusinessSegments

us-gaap:SelfInsuranceReserve
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
us-gaap:AwardType
us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
us-gaap:ShareRepurchaseProgram
us-gaap:StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
us-gaap:ValuationAllowancesAndReservesType
us-gaap:ValuationAllowancesAndReservesBalance

Plots across concepts


IncomeStatement
Other Comprehensive Income Loss Net Of Tax
Expenses
Research And Development Expense
Balance Sheet
Short Term Investments
Assets
Inventory Net
Current Assets
Inventory Net
NonCurrent Assets
Deferred Income Tax Assets Net
PropertyPlantAndEquipmentNet
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
Liabilities
Operating Lease Liability
Current Liabilities
Operating Lease Liability Current
Noncurrent Liabilities
Minority Interest
Stockholders Equity
Common Stock Value
Per Share
Common Stock Dividends Per Share Declared
CashFlow
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInOperatingActivities
Increase Decrease In Accounts Payable
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInFinancingActivities
Proceeds From Payments For Other Financing Activities
Shares
Weighted Average Number Of Shares Outstanding Basic
DividendsAndRepurchase
Payments For Repurchase Of Common Stock
OperatingLeaseLiability
Operating Lease Liability Current
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Due Year Four
FiniteLivedIntangibleAssets
Finite Lived Intangible Assets Accumulated Amortization

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:CommonStockValue ██████▇▇▇▇▇▇▇▇▇▆▆▆▆▆▅▅▅▄▄▄▄▄▃▃▃▃▃▃▂▂▂▂▁▁▁1.2731.2731.271.271.2691.2691.2661.2651.2641.2641.2591.2581.2571.2571.2541.2531.2521.2481.2411.2411.2391.2351.2281.2261.2241.2191.2161.2141.2131.2111.2051.2041.2021.21.1961.1941.1921.191.1851.1821.18NA1.17NANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding ▁█95.52918995.558863NA95.73069695.63357195.756372NA95.81119895.67720495.821354NA100.420766100.571737100.512287NA100.260255100.150926100.690968NA103.815585104.819028105.762919NA108.184304107.120149107.146494NA107.444284110.11663110.886043NA111.749381112.662563114.737154NA119452.881119.257911118.859141NA118.590285118.353937117.957245NA117.647749117.423807NA
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic █▁95.35493295.303728NA95.48300395.45762995.412351NA95.42062695.35731195.255109NA99.42103199.6815899.526187NA99.32867799.16620599.44491NA102.735989103.527603104.364141NA106.962168107.120149106.775916NA107.105986109.766237110.439415NA110.931376111.898819114.097313NA118843.829118.648459118.255346NA117.773223117.50261116.968275NA116.291477116.067535NA
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount NA0.131775NANANA0.099102NANANA0.181358NANANA0.079278NANANA0.103608NANANA0.385919NANANA3.048297NANANA1.301836NANANA1.852891NANANANANANANANANANANANA
us-gaap:EarningsPerShareBasic ▆▆▆▆▆▆▆▆▆▅▄▆▅▆▃▅▆▅▅▅▅▅▄▆▃▅▁▅▄▅█▅▆▅▅▅▅▅▅▅▅▄▅▅▅▄0.620.730.690.770.670.790.640.780.620.510.220.780.610.67-0.160.470.620.560.340.390.560.470.00.97-0.160.42-0.970.570.240.411.50.540.650.410.330.340.540.40.540.390.390.120.450.310.410.15
us-gaap:EarningsPerShareDiluted ▆▆▆▆▆▆▆▆▆▅▄▆▅▆▃▅▆▅▅▅▅▅▄▇▃▅▁▅▄▅█▅▆▅▅▅▅▅▅▅▅▄▅▅▅▄0.620.730.690.760.670.790.640.780.620.510.220.780.60.66-0.160.460.610.550.340.390.550.460.00.96-0.160.42-0.970.570.240.411.480.540.650.410.330.340.540.390.540.390.390.110.450.310.410.14
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 Operating Margin us-gaap:ConsolidationItems us-gaap:OperatingSegments▆▇█▆▅▇▅▅▄▁▄▁▂▃513.318534.949565.686528.313511.563548.457507.355512.097474.82418.294480.753426.853440.433459.48NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,bwxt:NuclearEnergyGroupSegment▁█101.842107.398NA108.10467.98387.917NA84.37686.63984.399NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,bwxt:NuclearOperationsGroupSegment▅▇█▆▇█▅▆▄▁381.342402.068425.728386.502410.252423.775370.95394.484358.352304.801NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,bwxt:NuclearServicesGroupSegment█▁30.13425.483NA33.70733.32836.765NA33.23729.82929.094NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 TTM Greenblatt ROC _ _▅▅▅▅▅▅▅▅▅▄▅▄▅▅▄▅▅▅▄▄▅▄▄▅▄▅▁▄▄▄█▅▅▄▄▄▅▄▅▄▄▄▅73.75182.41489.08188.7782.43498.26782.8898.46280.53563.644103.14550.39571.54979.88859.65273.68192.34783.20545.82362.37388.45842.6099.607130.96611.58570.811-156.5465.1635.11853.64295.32282.12198.70660.21365.69367.30789.35965.71193.25957.55163.25721.90174.494NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AllocatedShareBasedCompensationExpense ▄▄▄▄▄▃▃▃▄▃▃▃▃▄▄▃▃▄▅▃▃▃▃▃█▄▁▄▄▃▂▄▄▄5.04.24.84.74.72.63.93.14.23.61.72.81.44.95.93.94.04.77.22.93.82.91.52.917.84.5-3.54.35.91.90.04.55.24.5NA4.65.0643.983NANA4.8424.853NANANANA
us-gaap:ComprehensiveIncomeNetOfTax ▆▆▆▆▆▆▅▆▅▅▄▆▅▆▃▅▅▅▅▅▅▅▄▆▃▅▁▅▅▅█▆▆▅▅▆▅▆▂▅▅▅▄▆▅67.3577.84182.34882.27765.38464.30261.32372.4263.26249.8749.24480.21357.47663.667-17.08551.13462.50556.93435.09440.96857.32352.731-0.49599.525-17.58136.765-116.95356.56426.50738.518163.61966.77869.07542.22640.12364.51662.39566.563-61.79442.95962.41337.4476.85265.54352.419NA
us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest █████████████████████████▇▇▇▄▃▂▄▄▅▅▅▄▄▅▁█████0.0620.0660.2430.0290.1380.1210.120.1880.1220.1320.1460.1580.071-0.0280.1570.140.1570.0670.1820.1450.1250.1030.2050.164-0.165-0.198-0.319-0.81-2.942-3.897-4.585-3.466-3.172-2.299-2.167-2.169-2.921-2.87-2.252-5.7540.1430.1930.1060.0610.06NA
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest ▆▆▆▆▆▆▆▆▆▅▄▆▅▆▄▅▆▅▅▅▅▅▄▆▄▅▁▅▅▅█▆▆▅▅▆▅▆▂▅▆▅▄▆▅67.41277.90782.59182.30665.52264.42361.44372.60863.38450.0069.3980.37157.54763.639-16.92851.27462.66257.00135.27641.11357.44852.834-0.2999.689-17.74636.567-117.27255.75423.56534.621159.03463.31265.90339.92737.95662.34759.47463.693-64.04637.20562.55637.646.95865.60452.479NA
us-gaap:CostOfRevenue ▃▃▃▂▂▃▂▂▂▂▂▂▂▂▂▂▁▂▁▁▁▁▂▁▁▄█▅▄▄▃▅▆▅▅▅▆▅▅▄▅▅▄▄▄375.817392.806414.359373.783367.534392.443361.666357.732338.023303.635323.989326.314318.209327.364307.934295.316271.382296.23289.469271.174265.076248.81299.752250.558249.489539.921840.147554.614512.308502.307417.514578.394686.043619.697620.962619.104638.4582.739589.999535.662587.741564.806525.497468.502502.143NA
us-gaap:CostsAndExpenses ▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▂▅█▅▅▅▄▅▆▆▆▆▆▅▆▅▅▅▅▄▅438.611454.175475.734439.379426.999450.004424.861415.412397.558360.492382.498384.435373.597384.725373.266349.309320.991348.899360.857322.14318.632325.75356.7233.898348.832659.535999.63680.05664.071623.646523.838710.864806.205759.997759.203754.825779.913717.538729.661672.853707.476684.737656.31584.674620.276NA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▅▅▅▅▅▅▅▅▅▅▄▅▅▅▅▅▅▅▄▅▅▅▄▆▄▅▁▅▄▄█▅▅▅▆▄▅▅▃▅▅▄78.93191.89387.76291.88284.0898.44878.62594.50677.73462.87731.34384.55979.22785.01656.32670.59488.48280.37843.50260.6887.96265.1244.209158.0978.57566.907-165.05781.07434.96754.482275.35881.43799.24561.133122.77539.38593.03964.219-50.83959.73666.6918.911NANANANA
us-gaap:IncomeTaxExpenseBenefit ▅▅▅▅▅▅▅▅▅▅▅▅▅▅█▅▆▆▅▅▆▅▄▇▅▅▁▅▅▅▄▆▆▅▄▄▆▅▆▅▅▅▅▅▆19.52222.07821.77718.68719.68422.82817.05619.50818.73413.7679.2626.48218.49318.60371.85923.90127.06224.5927.03420.03230.3616.233.62751.5898.98221.866-61.46520.67111.47513.3280.024.41629.54416.2570.01.05131.90920.35727.55819.83120.3495.24417.23122.22429.583NA
us-gaap:IncomeTaxesPaidNet ▆▂▃█▁▁▃▄▅▂▂▁▄▄▁▁▂▅▃▃▃▄▆▄▅▅▄▄▃▃▃▅▅▃▄▇▂▂▁▁▃▃▂▂36.2754.38617.90152.4141.9471.32712.87719.07631.9126.1916.9361.93125.47824.372.02.4286.91527.08217.51215.8411.53321.40635.69923.65727.41630.98121.88924.74613.01115.08816.32231.75127.61211.23921.44544.17710.5876.8531.363-0.26518.50413.9035.7856.224NANA
us-gaap:InterestExpense █▆▆▆▆▆▇▇█▇▇▆▆▃▃▃▃▃▃▂▂▂▃▂▃▂▃▃▁▁▁▁▁▁▁▁▂▁▂▁▂▁▂▁▄10.2037.0397.4817.7017.8657.9678.2178.8589.5428.7038.4697.9257.8693.563.6193.8373.9063.5173.0672.0491.5831.6943.3891.2313.32.3632.7812.9780.9210.8990.8770.6310.7890.8180.9640.9961.1520.6232.0210.771.2970.4551.610.664.676NA
us-gaap:InterestPaidNet ▅▆▅▆▃█▃█▃█▃▄▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▂▁▂▁▂▁▁▂▂▁8.83211.4389.84410.53.25514.6684.32815.5155.0614.7673.6685.74.1623.4633.493.7133.7193.332.1451.5811.3821.4041.3530.9722.5731.7492.4882.2771.0080.2880.449-0.2560.7770.820.9330.7561.5350.6182.040.7550.8380.8921.170.664NANA
us-gaap:NetIncomeLoss ▅▆▅▆▅▆▅▆▅▅▄▆▅▅▃▅▅▅▅▅▅▅▄▆▃▅▁▅▄▅█▅▆▅▅▅▅▅▅▅▅▄▅▅▅▄59.34769.74965.74273.17164.25875.49961.44974.8158.87848.97821.93577.91960.66366.441-15.69146.55361.26355.71933.99240.50357.47748.791-0.515103.87-17.14745.257-103.30761.21426.43745.044165.58860.44672.8747.17439.07140.52164.02446.74464.27245.66346.20913.5152.89235.88747.6416.843
us-gaap:NetIncomeLossAttributableToNoncontrollingInterest ▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▂▂▁▂▂▂▂▂▂▂█▁▃▃▃▃▃0.0620.0660.2430.0240.1380.1210.120.1880.1220.1320.1460.1580.071-0.0280.1570.140.1570.0670.1820.1450.1250.1030.2050.164-0.172-0.216-0.285-0.811-2.945-3.89-4.596-3.425-3.169-2.298-2.175-2.187-2.894-2.88213.17-5.7580.1320.157-0.3860.0370.072NA
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic ▁█59.34769.749NA73.17164.25875.499NA74.8158.87848.978NA77.91960.66366.441-15.6946.55361.26355.71936.28640.50357.47748.791-0.515103.87-17.14745.257-103.30761.21426.437NANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted ▆▇▇▇▇▇▇▇▆▆▅▇▇▇▄▆▇▆▆▆▆▆▄█▄▆▁▇▅59.34769.74965.74273.17164.25875.49961.44974.8158.87848.97821.93577.91960.66366.441-15.6946.55361.26355.71936.28640.50357.47748.791-0.515103.87-17.14745.257-103.30761.21426.437NANANANANANANANANANANANANANANANANA
us-gaap:OperatingIncomeLoss ▅▅▅▅▅▅▅▅▅▄▅▄▅▅▄▅▅▅▄▄▅▄▄▅▄▅▁▄▄▄█▅▅▄▄▄▅▄▅▄▄▄▅▄▅▄73.75182.41489.08188.7782.43498.26782.8898.46280.53563.644103.14550.39571.54979.88859.65273.68192.34783.20545.82362.37388.45842.6099.607130.96611.58570.811-156.5465.1635.11853.64295.32282.12198.70660.21365.69367.30789.35965.71193.25957.55163.25721.90174.49465.07785.65538.746
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax █▁0.203-0.578NA-0.2-0.4930.733NA-0.32-0.431-0.582NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax ▆▆█▆▄▁▄▃▅▄▃▄▃▃▄▅▄▄▃▄▄▄▄▃▄▁▁▂▄▂▄▅▃▃▄▆▁▅▄▂7.228.00118.0658.7040.856-11.942.56-2.5354.2950.943-4.9172.008-3.609-3.124-1.1884.592.0440.791-2.75-0.2720.0372.076-0.071-3.6332.151-10.93-12.926-6.837-0.531-6.611-0.1885.238-3.824-3.7441.9910.283-12.7694.78-0.777-9.354NANANANANANA
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▆▆▇▆▅▄▅▅▆▅▄▅▅▅▅▆▅▅▅▅▅▆▅▅▅▄▄▅▅▄▅▆▅▅▁█▅▆▁▅▇8.0038.09216.6069.1111.126-11.197-0.126-2.394.3840.896-12.6912.294-3.187-2.774-1.3954.5811.2421.215-1.1920.465-0.1543.940.02-4.345-0.427-8.474-13.68-4.6490.073-6.533-1.9586.291-3.798-4.949-36.27524.013-1.6566.624-34.75-2.716.215NANANANANA
us-gaap:OtherNonoperatingIncomeExpense ▆▆▆▆▆▆▅▅▆▆▁█▆▆▆▆▅▆▆▆▆▇▅█▆▆▅▇▆▆▄▆▆▆▆▄▆▆▆▆▆▆▆▅▅5.189.479-1.3193.1121.6460.181-4.255-3.956-2.801-0.767-71.80234.1647.6785.128-3.326-3.087-3.865-2.827-2.321-1.693-0.49622.515-5.39627.1310.12-1.715-5.88818.6250.581.322-19.395-0.5331.0051.406-0.81-27.3434.328-1.102-1.9712.7084.425-2.994-2.914-6.451-3.945NA
us-gaap:ProfitLoss ▅▆▅▆▅▆▅▆▅▅▄▆▅▅▃▅▅▅▅▅▅▅▄▆▃▅▁▅▄▅█▅▆▅▆▅▅▅▅▅▅▄▅▅▅59.40969.81565.98573.19564.39675.6261.56974.99859.049.1122.08178.07760.73466.413-15.53346.69361.4255.78636.46840.64857.60248.894-0.31104.034-17.31945.041-103.59260.40323.49241.154160.99257.02169.70144.87674.23138.33461.1343.86262.0439.90546.34113.66753.03435.92447.712NA
us-gaap:ResearchAndDevelopmentExpense ▂▁▁▁▂▂▁▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▂▃▃▃▇▆▆▆▁▇▇▇█▇▇█▅▄▅▄▄3.5053.1162.6242.9334.0294.6032.0415.1255.3325.1743.553.9594.1073.6071.9222.5971.1521.5191.3641.7461.5661.7311.5381.5183.6538.3469.9418.37930.91823.99626.25623.7870.83728.34629.48327.89334.1529.03631.87834.64222.56817.30818.45817.42416.226NA
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ▃▃▄▃▃▃▃▃▃▂▃▂▂▂▂▂▂▂▂▁▂▁▁▁▁▆▇▆▅▅▇▇█▇█▇█▆▇▆▆▅▆▅▅▅505.099528.273556.91519.878504.52542.208501.235506.0471.231416.454477.998426.853440.433459.48430.138419.36410.011428.229403.86379.505402.382364.826363.938358.97357.135730.565837.094737.902686.006662.017802.815774.834886.136805.423865.296807.586852.585765.892800.789707.622752.352691.277705.162632.765688.496662.388
us-gaap:Revenues ▃▃▄▃▃▃▃▃▃▂▃▂▂▂▂▂▂▂▂▁▂▁▁▁▁▆▇▆▅▅▇▇█▇█▇█▆▇▆▆▅▆▅▅▅505.099528.273556.91519.878504.52542.208501.235506.0471.231416.454477.998425.507438.921457.463430.138419.36410.011428.229403.86379.505402.382364.826363.938358.97357.135730.565837.094737.902686.006662.017802.815774.834886.136805.423865.296807.586852.585765.892800.789707.622752.352691.277705.162632.765688.496662.388
us-gaap:SellingGeneralAndAdministrativeExpense ▂▂▂▂▂▂▂▂▂▁▂▂▁▂▂▁▁▁▃▁▂▁▂▁▂▆█▆▅▅▃▅▆▅▆▆▆▆▆▅▅▅▆▅▅59.31858.26160.43662.63855.13752.95858.47552.56154.05251.68354.89353.91951.51853.76263.57151.39848.48851.1570.01249.22552.0445.20955.02547.5554.76108.751137.025108.987101.91894.68566.269102.576106.937103.6109.077105.208107.985106.023111.497102.00297.078102.633112.40598.708101.846NA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:Assets ▇▆▅▅▄▄▄▃▃▃▂▃▃▂▃▃▂▂▂▁▁▁▁▁▁██▇▇▆▇▇▇████▇█▇▇2566.4022351.9142293.5032124.3141971.3631966.6031908.9131826.421756.481716.7861655.0961735.7041742.4651539.5391712.3391723.5121624.7381617.9261579.8151365.1441401.3431365.7121382.1391410.7221337.2252792.1342856.9362656.772626.0532499.632609.1532739.6642725.3092749.3922840.3552803.7722781.1612736.4972789.1112545.2172578.415NA2500.51NANANA
us-gaap:LiabilitiesAndStockholdersEquity ▇▆▅▅▄▄▄▃▃▃▂▃▃▂▃▃▂▂▂▁▁▁▁▁▁██▇▇▆▇▇▇████▇█▇▇2566.4022351.9142293.5032124.3141971.3631966.6031908.9131826.421756.481716.7861655.0961735.7041742.4651539.5391712.3391723.5121624.7381617.9261579.8151365.1441401.3431365.7121382.1391410.7221337.2252792.1342856.9362656.772626.0532499.632609.1532739.6642725.3092749.3922840.3552803.7722781.1612736.4972789.1112545.2172578.415NA2500.51NANANA
us-gaap:StockholdersEquity ▅▅▄▄▃▃▃▃▂▂▂▃▃▂▂▂▂▂▁▁▂▂▂▂▂▇▇████▇▇▇▇▇▇▆▆▆▆708.997656.238617.766550.186481.517429.512404.106354.476294.13242.849235.662392.452388.263345.141285.394307.9263.951205.906150.018118.3292.127267.586265.716317.638242.7511031.726998.7041124.0491120.1591178.7221164.6871022.135969.298968.547986.4351043.676970.171899.105825.794879.501830.933NA712.859NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AssetsCurrent ▄▃▃▂▂▂▂▂▁▁▁▂▃▂▃▃▂▂▂▂▂▂▂▂▂▇█▇▇▇▇▇▇▇███▇█▇▆922.652759.239773.598709.6623.973687.04629.755621.45587.38577.564542.448684.857890.697702.85873.09830.876745.544743.509693.571617.35664.771634.239647.294705.23627.7261420.8351473.8021371.8591329.6711339.0441437.4241430.1611417.1021440.0881521.0861488.8251459.0411409.2391487.0761329.4561289.9NA1209.116NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▄▂▂▂▂▂▂▁▁▁▁▂▆▃▄▄▃▂▃▂▂▂▃▃▂▆▆▄▅▄▇▅▅▅▇▄▄▅█▅▅▆█▄▅190.75257.67742.6144.66261.58477.62786.5413.64134.44422.97629.87166.125317.624143.335203.404203.14147.9395.924125.64145.22697.80267.691154.729135.92146.91274.394312.969196.921215.918208.055346.116219.828242.205261.116383.547200.299206.77249.62415.209261.583258.371292.181391.142177.656240.347NA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents ▅▂▂▂▂▂▃▁▁▁▁▂█▄▅▅▄▃▄196.50563.4248.29850.63367.55683.54292.420.00941.52429.72236.40873.122326.141151.336213.144213.21157.93104.713134.6NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ShortTermInvestments ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂▂▁▁▁▁▁▁▂▁▁▁▃▄▅▅▇█▆▄▃▂3.33.8273.7073.6993.713.6945.8433.6183.6143.6013.5972.7321.8241.0342.9343.2344.44612.41114.51714.714.8814.1563.4762.2514.50510.4694.83719.0464.2496.34810.74845.83769.11893.38288.769139.156155.554111.23768.80539.77427.228NA0.234NANANA
us-gaap:AccountsReceivableNetCurrent ▁▁▃▂▁▁▁▁▁▁▂▄▄▃▃▃▃▃▂▃▂▃▃▃▃███▇▆▇██▇▇▇▆▆▆▆▇61.10757.999153.36885.33264.84663.05156.72171.48468.12265.255129.459194.575200.889174.15189.217160.74145.98187.98135.95157.188133.434157.284153.326180.108146.847404.941430.6424.875381.761328.197360.323414.984407.323374.296364.96371.186339.273329.336305.832345.013353.796NA289.374NANANA
us-gaap:InventoryNet ▁▁▁▁▁▁▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▇▇▇▇▇▇▇▇▇██▇▇▇▇▆14.813.915.013.012.011.617.117.816.415.216.015.511.710.68.68.77.98.07.78.07.68.67.31110.9711.384109.659108.637116.533112.971109.544113.058113.895111.583117.115124.218131.799115.507114.025107.298108.271105.072NA100.932NANANA
us-gaap:OtherAssetsCurrent ▄▃▄▃▃▃▃▃▃▄▄▄▂▂▂▂▂▂▂▁▂▃▁▁▄▅▄▅▇▆▄▄▅▅▄▂▂▄▃▅█44.79539.44644.25640.67138.6737.22641.46241.01540.03245.71743.85944.52832.34333.53630.43728.95729.13430.05129.31924.59132.42333.80624.87421.73542.14149.8246.11157.29770.64561.72447.76445.31250.05653.5941.85828.28133.55144.10533.92954.32577.339NA34.868NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 us-gaap:AssetsNoncurrent us-gaap:EquityMethodInvestmentNonconsolidatedInvestee us-gaap:EquityMethodInvesteeNANA0.97NANANA1.285NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PropertyPlantAndEquipmentGross █▇▇▆▅▅▅▄▄▄▄▃▃▃▃▂▂▂▂▁▁▁▁▁▁▄▄▄▄▄▄▃▃▃▃▃▃▃▃▂▂1647.0981585.2081525.5521410.4111344.3421275.3341272.0931233.1511182.01150.111132.3921073.8931034.0151023.8561013.141974.633945.963931.953922.641879.015867.167856.751846.936831.043827.621171.3471167.5811179.4351178.3571138.9081126.6831111.5381114.51107.2731099.041070.9441046.511038.5861017.422994.625996.737NA968.712NANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment ▇▆▇▆▆▆▆▇▇▆▆▆▅▅▅▅▄▄▃▃▃▂▂▁▁██▇▇▆▆▅▅▅▄▄▃▃▂▂▂704.97701.208709.081695.313688.137681.177691.852719.151708.186696.095693.153684.53676.813673.954664.512661.674647.749635.405622.955615.023604.175592.166578.092568.773562.198742.704730.946716.309708.789690.878679.604667.597670.923661.902652.019639.422621.485611.529595.131586.404579.821NA550.4NANANA
us-gaap:PropertyPlantAndEquipmentNet █▇▇▆▅▄▄▄▃▃▃▂▂▂▂▂▁▁▁▁▁▁▁▁▁▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃942.128884.0816.471715.098656.205594.157580.241514.0473.814454.015439.239389.363357.202349.902348.629312.959298.214296.548299.686263.992262.992264.585268.844262.27265.422428.643436.635463.126469.568448.03447.079443.941443.577445.371447.021431.522425.025427.057422.291408.221416.916NA418.312NANANA
us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures ▃▃▃▃▃▃▃▃▃▂▂▂▂▂▁▁▁▁▁▂▂▁▁▁▁▅▅▆▆▇▇██▇▇█▇▇▆▇▆78.13574.21671.80673.63870.56471.75470.11670.96368.57665.3263.74662.1657.85447.04343.26639.9841.22542.50342.85447.8745.88236.25732.08833.81231.852133.691140.504141.914158.927185.814184.831201.789201.121189.383186.354198.503186.8178.427163.568166.443155.22NA100.811NANANA
us-gaap:Goodwill ▅▅▅▄▄▄▄▄▄▄▄▄▂▂▃▃▂▂▂▁▁▁▁▁▁▇▇██▄▄▄▄▄▄▄▄▄▄▄▄287.935285.992283.708275.966274.345271.593275.502277.078278.626275.604274.082278.939215.547216.999218.331217.453214.933211.405210.788168.7168.722168.703168.434168.585169.0376.478379.192395.301396.829281.701281.708281.205280.239280.289280.78280.165278.737276.824276.18269.892272.108NA269.424NANANA
us-gaap:IntangibleAssetsNetExcludingGoodwill ▆▆▆▆▆▆▆▆▆▆██▃▃▃▃▃▃▃▁▁▁▁▁▁▃▃▃▃▂▂▂▂▂▂192.902193.015192.751189.028186.442185.678191.392191.318195.125194.116228.676240.081103.008106.718110.405113.437113.001113.311114.74856.90357.37857.85358.32858.86359.343105.573110.873114.54119.85280.08181.52182.38385.44187.36787.686NANANA103.041NANANA105.604NANANA
us-gaap:FiniteLivedIntangibleAssetsNet NANA148.921NANANA147.562NANANA184.846NANANA66.575NANANA70.918NANANA14.498NANANA65.738NANANA36.386NANANA42.551NANANA57.906NANANA60.469NANANA
us-gaap:DeferredTaxAssetsLiabilitiesNet NANA49.415NANANA58.689NANANA62.07NANANA77.279NANANA171.391NANANA177.533NANANA302.625NANANA200.252NANANA292.025NANANA335.531NANANA318.065NANANA
us-gaap:OperatingLeaseRightOfUseAsset NANA41.3NANANANA42.344.544.1NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent ▄▄▄▄▄▄▄▃▃▃▂▁▁▁▁▁▁▁▁▁▁▁▁▂▂▃▃▂▂▂▂▃▃▄▇▇██▇▇▇100.87697.97996.39898.33896.85194.96195.59881.37782.42780.41535.61526.59524.35722.39122.57723.59119.85217.66314.69127.12318.52517.13119.72243.59549.74268.4362.55848.38849.89241.51845.08882.49783.8386.244173.809174.684209.235204.864194.482185.388182.707NA191.48NANANA
 us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByFairValueHierarchyLevel,us-gaap:FairValueByMeasurementFrequency,us-gaap:FinancialInstrument us-gaap:FairValueInputsLevel2,us-gaap:FairValueMeasurementsRecurring,us-gaap:MutualFund█▇▆▄▃▁▃▂▂7.3586.8976.7556.125.7524.9625.6855.3165.283NA4.694NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByFairValueHierarchyLevel,us-gaap:FairValueByMeasurementFrequency,us-gaap:FinancialInstrument us-gaap:FairValueInputsLevel3,us-gaap:FairValueMeasurementsRecurring,us-gaap:EquitySecurities▄▄▄0.80.80.8NANANA0.00.00.0NA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByFairValueHierarchyLevel,us-gaap:FairValueByMeasurementFrequency,us-gaap:InvestmentType us-gaap:FairValueInputsLevel2,us-gaap:FairValueMeasurementsRecurring,us-gaap:MutualFundNANA6.755NANANA5.685NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByFairValueHierarchyLevel,us-gaap:FairValueByMeasurementFrequency,us-gaap:InvestmentType us-gaap:FairValueInputsLevel3,us-gaap:FairValueMeasurementsRecurring,us-gaap:EquitySecuritiesNANA0.8NANANA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByMeasurementFrequency,us-gaap:FinancialInstrument us-gaap:FairValueMeasurementsRecurring,us-gaap:EquitySecurities▄▄▄0.80.80.8NANANA2.1722.5112.242NA1.163NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByMeasurementFrequency,us-gaap:FinancialInstrument us-gaap:FairValueMeasurementsRecurring,us-gaap:MutualFund█▇▆▄▃▁▃▂▂7.3586.8976.7556.125.7524.9625.6855.3165.283NA4.694NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByMeasurementFrequency,us-gaap:InvestmentType us-gaap:FairValueMeasurementsRecurring,us-gaap:EquitySecuritiesNANA0.8NANANA2.172NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByMeasurementFrequency,us-gaap:InvestmentType us-gaap:FairValueMeasurementsRecurring,us-gaap:MutualFundNANA6.755NANANA5.685NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:EquitySecuritiesFvNi us-gaap:FinancialInstrument us-gaap:EquitySecuritiesNANA0.8NANANA2.172NANANA1.163NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:EquitySecuritiesFvNi us-gaap:FinancialInstrument us-gaap:MutualFundNANA6.755NANANA5.685NANANA4.694NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AccountsPayableCurrent ▃▃▄▄▃▃▄▃▂▂▂▂▂▂▂▂▁▂▂▁▂▁▁▁▁▅▆▅▅▆█▇▇▇▇▇▆▅▆▅▅143.878146.958184.392162.482141.459123.975170.678122.277108.798.455114.751100.00488.42199.22493.42189.05768.53780.3999.98376.583.56172.28874.1360.18477.438199.349247.629212.069199.86233.765319.774268.256265.391280.521264.798269.48247.802224.659237.494213.462199.432NA185.24NANANA
us-gaap:ContractWithCustomerLiabilityCurrent █▇▄▁▁▄▃▁▁▅▇█▃▃105.24299.21883.58167.06664.81580.06575.42566.52667.41388.11798.477104.64677.77577.14NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LiabilitiesCurrent ▅▂▃▂▂▁▂▁▁▁▂▁▁▁▃▂▂▂▂▂▂▂▁▂▁▅▅▄▄▅▆▇▇▇▇▇▇▇█▇▇801.643403.977529.727382.551375.335343.158404.709333.74315.392325.76377.348359.727309.368327.055528.126459.867392.774382.437439.876381.349387.503372.792353.78377.969344.45733.74819.636711.12695.688808.453927.228991.7641014.6231009.4661079.2881016.0561084.5331075.0181154.8071028.6991043.862NA981.827NANANA
us-gaap:LongTermDebtCurrent 400.0NANANANANA14.711NANANANANANANANANANANANANANANA15.0NANANA15.0NANANA0.222NANANA0.214NANANA0.205NANANA1.763NANANA
us-gaap:OperatingLeaseLiabilityCurrent NANA3.3NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAccruedLiabilitiesCurrent ▆█▆▅▄▂▃▂▃▄▄▃▂▃▅▃▁▂▅▅▅▆▂▃▄76.56491.178.02869.02360.46744.82552.21348.89251.49358.03262.16353.50848.37751.66264.73855.84138.27442.61272.10570.38368.60977.35744.94754.13559.496NA60.01NANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 us-gaap:LongTermDebt us-gaap:CreditFacility,us-gaap:DebtInstrument us-gaap:LetterOfCredit,bwxt:AmendmentNo.1toCreditAgreementNANANA66.164.7NA65.7NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:CreditFacility,us-gaap:DebtInstrument us-gaap:LetterOfCredit,bwxt:NewCreditFacilityNANA68.3NANANA67.6NANANA63.5NA71.5NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:CreditFacility,us-gaap:DebtInstrument us-gaap:RevolvingCreditFacility,bwxt:AmendmentNo.1toCreditAgreementNANANA115.040.0NA280.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:CreditFacility,us-gaap:DebtInstrument us-gaap:RevolvingCreditFacility,bwxt:NewCreditFacilityNANA75.0NANANA160.0NANANA100.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LongTermDebtNoncurrent ▆█▇▇▇▇▇▇▇▇▆▆▆▄▄▄▄▅▄▄▃▃▃▃▃▃▃▃▃▁▁▁▁▁▁▁▁▁▁▁▁784.1111018.265862.731902.197826.831911.312809.442849.589855.69856.005753.617756.492666.2471.367481.059489.128489.322542.997497.724423.211271.509274.884285.0288.75315.0281.25285.0298.776260.0515.00.2250.2760.3190.3650.430.4750.510.5970.6330.7080.81NA0.855NANANA
us-gaap:MinorityInterest ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▆▆▆▇▇▇▇█████▇▆▆▅▅▃▁0.090.0680.002-0.1060.0150.00.0060.0570.0190.0250.0390.0490.0540.1090.3630.3410.350.3130.3920.3390.3190.30813.91913.84613.78215.19815.49715.91816.83618.41818.25418.41918.05317.116.48114.30211.8449.8569.1795.5380.832NA0.666NANANA
us-gaap:OtherLiabilitiesNoncurrent ▃▃▃▃▂▂▁▂▁▁▁▂▂▂▂▃▃▃▃▂▂▁▂▂▃▅▅▅▅▅▆▅▅▅▅▆█████32.228.54828.57632.12324.5715.8914.51516.65215.15915.0139.35315.35118.57619.42519.79934.36833.833.81833.98619.5419.85315.04724.55522.97229.4457.9759.63758.70954.40859.16965.29659.71559.35858.49160.85166.3490.42388.80887.92191.19491.256NA100.314NANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANA1.926NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANA1.182NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NANA0.697NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA0.507NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:StockholdersEquity ▅▅▄▄▃▃▃▃▂▂▂▃▃▂▂▂▂▂▁▁▂▂▂▂▂▇▇████▇▇▇▇▇▇▆▆▆▆708.997656.238617.766550.186481.517429.512404.106354.476294.13242.849235.662392.452388.263345.141285.394307.9263.951205.906150.018118.3292.127267.586265.716317.638242.7511031.726998.7041124.0491120.1591178.7221164.6871022.135969.298968.547986.4351043.676970.171899.105825.794879.501830.933NA712.859NANANA
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest ▅▄▄▄▃▃▃▃▂▂▂▃▃▂▂▂▂▂▁▁▂▂▂▂▂▇▇████▇▇▇▇▇▇▆▆▆▆▅▅▅▄709.087656.306617.768550.08481.532429.512404.112354.533294.149242.874235.701392.501388.317345.25285.757308.241264.301206.219150.41118.639292.446267.894279.635331.484256.5331046.9241014.2011139.9671136.9951197.141182.9411040.554987.351985.6471002.9161057.978982.015908.961834.973885.039831.765760.289713.525696.011585.105NA
us-gaap:CommonStockValue ██████▇▇▇▇▇▇▇▇▇▆▆▆▆▆▅▅▅▄▄▄▄▄▃▃▃▃▃▃▂▂▂▂▁▁▁1.2731.2731.271.271.2691.2691.2661.2651.2641.2641.2591.2581.2571.2571.2541.2531.2521.2481.2411.2411.2391.2351.2281.2261.2241.2191.2161.2141.2131.2111.2051.2041.2021.21.1961.1941.1921.191.1851.1821.18NA1.17NANANA
us-gaap:AdditionalPaidInCapitalCommonStock ▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁██164.926159.295153.8148.272143.412138.5134.069128.876124.105119.525115.725112.3108.919107.10898.84392.40387.65775.12322.01816.17149.38436.40822.73215.96413.229784.076775.393NANANANANANANANANANANANANANANANANANANA
us-gaap:RetainedEarningsAccumulatedDeficit ███▇▇▇▇▆▆▆▆▆▅▅▅▅▅▅▄▄▄▄▄▄▃▃▃▄▄▄▃▃▂▂▂▂▂▂▂▁▁1638.7091599.5261549.951502.5711447.6421401.6281344.3831299.2791240.7751198.1981166.7621159.5521097.6651053.09990.6521017.544982.024931.778885.117857.841826.737778.689739.35746.278648.923676.913642.489756.572706.162690.84656.916502.468450.96387.087349.063417.614377.093313.069266.325202.053156.39NA96.671NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ███▇▇▇███▇▇████████████████████████▂▁▁▁▃▃24.29316.298.198-8.408-17.519-18.645-7.448-7.322-4.932-9.316-10.2893.5421.2484.4359.45410.8496.2685.0263.8115.0034.5384.6920.7520.7325.077-4.8963.59617.24221.89221.82228.34830.31723.98527.7832.728-496.443-520.438-518.809-538.628-412.562-409.858NA-449.999NANANA
us-gaap:TreasuryStockValue ██████████▇▇▆▆▆▆▆▆▆▆▅▄▄▄▄▄▄▄▃▃▃▃▂▂▂▁▁▁▁▁▁1120.2041120.1461095.4521093.5191093.2871093.241068.1641067.6221067.0821066.8221037.795884.2820.826820.749814.809814.149813.25807.269762.169761.956589.771553.438498.346446.562425.702425.586423.99423.821373.776289.425268.971251.997237.582168.809109.80913.01312.94412.88910.0599.3678.264NA2.397NANANA
us-gaap:MinorityInterest ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▆▆▆▇▇▇▇█████▇▆▆▅▅▃▁0.090.0680.002-0.1060.0150.00.0060.0570.0190.0250.0390.0490.0540.1090.3630.3410.350.3130.3920.3390.3190.30813.91913.84613.78215.19815.49715.91816.83618.41818.25418.41918.05317.116.48114.30211.8449.8569.1795.5380.832NA0.666NANANA
us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders 0.04NANA0.1450.1230.127NA0.150.1280.1460.1560.1630.1260.2260.1350.1490.120.1460.1290.1250.1140.1430.1320.10.1310.1010.1030.1080.2970.1120.0850.0880.2240.1020.1190.678-0.3810.0970.706-0.135NANA-0.0020.16NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▄▅▄▂▇▂█▄▄▂█▂▄▂▅▅▆▁▇▃59.90998.41448.348-7.536162.077-6.447188.36743.93564.789-17.723177.731-25.75135.915-18.60577.4780.661118.699-54.676147.37619.459NANANANANANANANANANA143.913-17.80338.091-26.315264.164-4.55528.552-103.234219.2595.97729.928-81.573230.9218.056NANA
us-gaap:NetCashProvidedByUsedInInvestingActivities ▆▅▆▆▇▆▆▇▇▇▇▁▇█▇███▄█-67.57-102.032-71.679-64.223-50.644-78.773-57.594-46.733-31.163-44.505-49.715-235.628-25.67-15.711-51.758-17.456-6.533-14.909-139.563-11.244NANANANANANANANANANA12.16313.70921.489-27.30823.706-6.187-60.285-68.631-65.374.97-67.972-25.95-20.486-51.773NANA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▇▅▅▆▂▆▃▄▄▆▁▅█▄▄▄▃▅▆▃140.1419.28219.96855.445-128.14877.781-58.721-18.263-22.16755.438-163.2156.164172.984-25.256-17.601-16.991-65.27138.68573.683-60.652NANANANANANANANANANA-27.551-21.468-76.312-65.547-104.616-1.118-4.8582.586-0.141.1190.2876.269-0.105-30.865NANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▇▅▅▅▅▅▆▅▅▅▅▁█▄133.08515.122-2.335-16.923-15.986-8.85872.391-21.51511.802-6.686-36.714-253.019174.805-61.808NA55.2853.217-29.887NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AmortizationOfFinancingCosts NANA0.5330.543NANA0.3940.395NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:DepreciationDepletionAndAmortization ▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▄▄█▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂17.09515.89715.21614.89314.95115.61415.69415.19515.71115.12216.40515.27214.35914.06114.42213.93614.22313.97613.46412.42112.76411.90513.61113.29525.27226.44348.39822.34718.0417.01319.18417.48516.49817.35816.87917.28817.81517.71517.5117.71818.4619.31518.63319.603NANA
us-gaap:IncreaseDecreaseInAccountsPayable ▅▅▅▆▆▄▇▆▆▅▅▆▅▆▆▆▅▅▆▅▆▅▆▅▇▃▇▆▃▁█▅▅▆▅▆▇▅▆▆▆▆▆▃-4.252-12.623-10.85516.25514.517-21.15826.4686.9339.5791.612-0.1735.896-14.36310.5283.50215.927-12.902-14.00316.914-7.659.1651.129.84-16.11523.738-41.44834.22714.2-47.307-82.16449.59-0.667-14.33320.305-7.2419.27128.519-10.15914.63217.6739.9256.01617.38-38.578NANA
us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet ▅▅▅▅▅▅▆▅▄▅▅▅▅▅▅▅▅▅▅▅▅▆▅▄▅▅▆▄▄▅▃▄▄▆█▄▄▆▁▆▄▇▆▄-0.738-5.119-4.466-0.52-3.3780.46113.0161.263-8.1192.8460.1521.961-0.5320.9890.9965.038-4.038-1.25.273-4.025-3.54911.4130.064-17.166-2.4333.2199.743-7.807-8.89-0.36-20.097-9.926-9.27813.28343.214-7.382-6.61717.163-54.23913.733-15.38522.40120.16-8.142NANA
us-gaap:NetCashProvidedByUsedInOperatingActivities ▄▅▄▂▇▂█▄▄▂█▂▄▂▅▅▆▁▇▃59.90998.41448.348-7.536162.077-6.447188.36743.93564.789-17.723177.731-25.75135.915-18.60577.4780.661118.699-54.676147.37619.459NANANANANANANANANANA143.913-17.80338.091-26.315264.164-4.55528.552-103.234219.2595.97729.928-81.573230.9218.056NANA
us-gaap:NetIncomeLoss ▅▆▅▆▅▆▅▆▅▅▄▆▅▅▃▅▅▅▅▅▅▅▄▆▃▅▁▅▄▅█▅▆▅▅▅▅▅▅▅▅▄▅▅▅▄59.34769.74965.74273.17164.25875.49961.44974.8158.87848.97821.93577.91960.66366.441-15.69146.55361.26355.71933.99240.50357.47748.791-0.515103.87-17.14745.257-103.30761.21426.43745.044165.58860.44672.8747.17439.07140.52164.02446.74464.27245.66346.20913.5152.89235.88747.6416.843
us-gaap:ProfitLoss ▅▆▅▆▅▆▅▆▅▅▄▆▅▅▃▅▅▅▅▅▅▅▄▆▃▅▁▅▄▅█▅▆▅▆▅▅▅▅▅▅▄▅▅▅59.40969.81565.98573.19564.39675.6261.56974.99859.049.1122.08178.07760.73466.413-15.53346.69361.4255.78636.46840.64857.60248.894-0.31104.034-17.31945.041-103.59260.40323.49241.154160.99257.02169.70144.87674.23138.33461.1343.86262.0439.90546.34113.66753.03435.92447.712NA
us-gaap:ShareBasedCompensation ▃▂▃▃▃▂▂▂▂▂▂▂▁▃▃▂▂▂▄▂▂▂▄▂█▄▆▃▃▁▁▂▃▂▃▃▃▂▃▂▃▃5.2923.9814.7054.6624.3753.1023.5872.7873.8232.5293.3642.7641.2944.4615.3432.7813.6863.4126.9982.3433.5612.4696.5942.66115.4636.98111.6754.3755.7071.7042.03.9964.8024.2744.4544.5085.0643.9834.9563.2764.8424.853NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▆▅▆▆▇▆▆▇▇▇▇▁▇█▇███▄█-67.57-102.032-71.679-64.223-50.644-78.773-57.594-46.733-31.163-44.505-49.715-235.628-25.67-15.711-51.758-17.456-6.533-14.909-139.563-11.244NANANANANANANANANANA12.16313.70921.489-27.30823.706-6.187-60.285-68.631-65.374.97-67.972-25.95-20.486-51.773NANA
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▅█▆▅▄▅▅▄▃▄▄▂▂▂▄▂▁▁▂▁▁▁▂▁▂▂▂▂▂▂▂▁▁▂▂▂▂▂▂▁▁▂▁▂68.238101.93275.05564.49550.70964.76859.49546.92831.18244.51948.8526.52816.32617.63447.51920.61415.03413.71321.76912.3868.39710.08216.14211.59219.25221.34920.15218.05516.60821.21419.66211.85514.63418.79927.85517.23220.10721.44119.87711.80211.44220.75314.86617.097NANA
us-gaap:PaymentsToAcquireInvestments ▇██▇▇██▇▇███▇█▇▁0.9941.3841.6690.4040.6481.5111.5220.6480.2521.7861.4091.2890.7891.0330.0-8.812NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▇▅▅▆▂▆▃▄▄▆▁▅█▄▄▄▃▅▆▃140.1419.28219.96855.445-128.14877.781-58.721-18.263-22.16755.438-163.2156.164172.984-25.256-17.601-16.991-65.27138.68573.683-60.652NANANANANANANANANANA-27.551-21.468-76.312-65.547-104.616-1.118-4.8582.586-0.141.1190.2876.269-0.105-30.865NANA
us-gaap:RepaymentsOfLongTermDebt █▁250.050.8NA87.8530.56997.607NA107.649277.257113.457NA115.019503.0176.951NA6.976NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PaymentsOfDividendsCommonStock ██▇▇▇▇▆▆▆▆▆▆▆▆▃▃▃▂▂▃▃▃▁▁▃▃▃▃▃▃▃▂▂▂20.00420.32218.03218.14418.16818.59616.20716.19116.17916.79715.80715.95116.11615.94710.97110.93311.1548.9858.9499.3979.519.5146.3746.55610.76710.78210.6710.69611.00411.09910.9298.948.9979.145NANANANANANANANANANANANA
us-gaap:Dividends ▁█20.16420.173NA18.24218.24418.254NA16.30616.30116.32315.86516.03216.08816.17411.20211.03211.0179.0589.019.3999.4299.4526.4136.51510.84310.83310.77610.80411.11511.1211.148.9388.9979.15NANANANANANANANA0.00.0NANA
us-gaap:PaymentsForRepurchaseOfCommonStock ▁▂▁▁▁▂▁▁▁▂▆▃▁▁▁▁▁▁▁█▂▃▃▂▁▁▁▃▄▂▂▁▃▃0.020.0071.9330.0270.020.00.00.00.020.0152.20162.5580.00.00.00.00.00.00.0211.53131.43350.03351.65918.0880.00.00.050.03284.07715.66516.9514.31468.75557.074NANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value1273000.01273000.01270000.01270000.01269000.01269000.01266000.01265000.01264000.01264000.01259000.01258000.01257000.01257000.01254000.01253000.01252000.01248000.01241000.01241000.01239000.01235000.01228000.01226000.01224000.01219000.01216000.01214000.01213000.01211000.01205000.01204000.01202000.01200000.01196000.01194000.01192000.01190000.01185000.01182000.01180000.01170000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value9595959595959595100100100100100100103104105108107107107110110111112114119452119118118118117117117
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value9595959595959595999999999999102103104106107106107109110110111114118843118118117117116116116
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


Antidilutive
Period End2021-03-312020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-31
Value131780.099102.0181360.079278.0103610.0385920.03048300.01301800.01852900.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.620.730.690.770.670.790.640.780.620.510.220.780.610.67-0.160.470.620.560.340.390.560.4700.97-0.160.42-0.970.570.240.411.50.540.650.410.330.340.540.40.540.390.390.120.450.310.410.15
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.620.730.690.760.670.790.640.780.620.510.220.780.60.66-0.160.460.610.550.340.390.550.4600.96-0.160.42-0.970.570.240.411.480.540.650.410.330.340.540.390.540.390.390.110.450.310.410.14
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:AllocatedShareBasedCompensationExpense


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-06-302011-03-31
Value5.04.24.84.74.72.63.93.14.23.61.72.81.44.95.93.94.04.77.22.93.82.91.52.9174.5-3.54.35.91.90.04.55.24.54.65.0643.9834.8424.853
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.00.80.90.90.90.50.80.60.90.90.40.70.31.11.40.91.01.11.80.80.90.80.40.85.00.6-0.40.60.90.30.00.60.60.60.60.60.50.60.7

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value677782826564617263499.244805763-17.08551625635405752-0.49599-17.58136-116.95356263816366694240646266-61.7944262376.8526552
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.314.714.815.813.011.912.214.313.412.01.918.813.013.9-4.012.215.213.38.710.814.214.5-0.127.7-4.95.0-14.07.73.95.820.48.67.85.24.68.07.38.7-7.76.18.35.41.010.47.6

Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value62000.066000.0243000.029000.0138000.0121000.0120000.0188000.0122000.0132000.0146000.0158000.071000.0-28000.0157000.0140000.0157000.067000.0182000.0145000.0125000.0103000.0205000.0164000.0-165000.0-198000.0-319000.0-810000.0-2942000.0-3897000.0-4585000.0-3466000.0-3172000.0-2299000.0-2167000.0-2169000.0-2921000.0-2870000.0-2252000.0-5754000.0143000.0193000.0106000.061000.060000.0
Percentage of ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.00.0-0.00.00.00.00.00.00.00.00.00.10.0-0.0-0.0-0.0-0.1-0.4-0.6-0.6-0.4-0.4-0.3-0.3-0.3-0.3-0.4-0.3-0.80.00.00.00.00.0

Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value677782826564617263509.39805763-16.92851625735415752-0.2999-17.74636-117.27255233415963653937625963-64.0463762376.9586552
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.314.714.815.813.011.912.314.313.512.02.018.813.113.9-3.912.215.313.38.710.814.314.5-0.127.8-5.05.0-14.07.63.45.219.88.27.45.04.47.77.08.3-8.05.38.35.41.010.47.6

Cost Of Revenue

us-gaap:CostOfRevenue

us-gaap:CostOfRevenue


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value375392414373367392361357338303323326318327307295271296289271265248299250249539840554512502417578686619620619638582589535587564525468502
Percentage of CostOfRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax74.474.474.471.972.872.472.270.771.772.967.876.472.271.271.670.466.269.271.771.565.968.282.469.869.973.9100.475.274.775.952.074.677.476.971.876.774.976.173.775.778.181.774.574.072.9

us-gaap:CostOfRevenue us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.1230.005-0.4-1.2820.430.5571.159-0.2280.337-0.202
Percentage of CostOfRevenue0.00.0-0.1-0.30.10.10.3-0.10.1-0.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.0-0.1-0.20.10.10.2-0.00.1-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedGainLossNetCashFlowHedgeParent-129.52.20.0132.078.0-55700.00.0175.4526.61683.3

Costs And Expenses

us-gaap:CostsAndExpenses

us-gaap:CostsAndExpenses


Costs
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value438454475439426450424415397360382384373384373349320348360322318325356233348659999680664623523710806759759754779717729672707684656584620
Percentage of CostsAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax86.886.085.484.584.683.084.882.184.486.680.090.184.883.786.883.378.381.589.484.979.289.398.065.297.790.3119.492.296.894.265.391.791.094.487.793.591.593.791.195.194.099.193.192.490.1

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value789187918498789477623184798556708880436087654.2091588.57566-165.057813454275819961122399364-50.839596618
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.617.415.817.716.718.215.718.716.515.16.619.818.018.513.116.821.618.810.816.021.917.91.244.02.49.2-19.711.05.18.234.310.511.27.614.24.910.98.4-6.38.48.92.7

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-0.2180.2220.7860.3110.121-0.558-1.2130.098-0.2730.19
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest-0.30.20.90.30.1-0.6-1.50.1-0.40.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.00.00.10.10.0-0.1-0.20.0-0.10.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedGainLossNetCashFlowHedgeParent229.597.80.0-32.022.055800.00.0-75.4-426.6-1583.3

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value192221181922171918139.2626.4821818712327247.0342030163.627518.98221-61.4652011130.02429160.01.05131202719205.244172229
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.94.23.93.63.94.23.43.94.03.31.91.54.24.016.75.76.65.71.75.37.54.41.014.42.53.0-7.32.81.72.00.03.23.32.00.00.13.72.73.42.82.70.82.43.54.3

us-gaap:IncomeTaxExpenseBenefit us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCredit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value-0.158-0.157-0.17-0.141-0.167-0.167-0.141-0.13-0.155-0.136-0.124-0.078-0.025-0.183-0.159-0.146-0.157-0.156-0.141-0.142-0.142-0.141-0.084-0.139-0.14-0.179-0.254-0.898-0.198-0.197-0.253-0.264-0.245
Percentage of IncomeTaxExpenseBenefit-0.8-0.7-0.8-0.8-0.8-0.7-0.8-0.7-0.8-1.0-1.3-1.2-0.1-1.0-0.2-0.6-0.6-0.6-2.0-0.7-0.5-0.9-2.3-0.3-1.6-0.80.4-4.3-1.7-1.50.0-1.1-0.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.1-0.0-0.0-0.0-0.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCredit0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-0.0550.0560.20.0790.032-0.138-0.3150.026-0.070.049
Percentage of IncomeTaxExpenseBenefit-0.30.30.90.40.2-0.6-1.80.1-0.40.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.00.00.00.00.0-0.0-0.10.0-0.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedGainLossNetCashFlowHedgeParent57.924.70.0-8.15.813800.00.0-20.0-109.4-408.3

Income Taxes Paid Net

us-gaap:IncomeTaxesPaidNet

us-gaap:IncomeTaxesPaidNet


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value364.38617521.9471.3271219316.1916.9361.93125242.02.4286.91527171511213523273021241315163127112144106.8531.363-0.26518135.7856.224
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.20.83.210.10.40.22.63.86.81.51.50.55.85.30.50.61.76.34.34.22.95.99.86.67.74.22.63.41.92.32.04.13.11.42.55.51.20.90.2-0.02.52.00.81.0

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value107.0397.4817.7017.8657.9678.2178.8589.5428.7038.4697.9257.8693.563.6193.8373.9063.5173.0672.0491.5831.6943.3891.2313.32.3632.7812.9780.9210.8990.8770.6310.7890.8180.9640.9961.1520.6232.0210.771.2970.4551.610.664.676
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.01.31.31.51.61.51.61.82.02.11.81.91.80.80.80.91.00.80.80.50.40.50.90.30.90.30.30.40.10.10.10.10.10.10.10.10.10.10.30.10.20.10.20.10.7

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value8.832119.844103.255144.328155.06143.6685.74.1623.4633.493.7133.7193.332.1451.5811.3821.4041.3530.9722.5731.7492.4882.2771.0080.2880.449-0.2560.7770.820.9330.7561.5350.6182.040.7550.8380.8921.170.664
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.72.21.82.00.62.70.93.11.13.50.81.30.90.80.80.90.90.80.50.40.30.40.40.30.70.20.30.30.10.00.1-0.00.10.10.10.10.20.10.30.10.10.10.20.1

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value5969657364756174584821776066-15.69146615533405748-0.515103-17.14745-103.307612645165607247394064466445461352354716
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.713.211.814.112.713.912.314.812.511.84.618.313.814.5-3.611.114.913.08.410.714.313.4-0.128.9-4.86.2-12.38.33.96.820.67.88.25.94.55.07.56.18.06.56.12.07.55.76.92.5

Net Income Loss Attributable To Noncontrolling Interest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value62000.066000.0243000.024000.0138000.0121000.0120000.0188000.0122000.0132000.0146000.0158000.071000.0-28000.0157000.0140000.0157000.067000.0182000.0145000.0125000.0103000.0205000.0164000.0-172000.0-216000.0-285000.0-811000.0-2945000.0-3890000.0-4596000.0-3425000.0-3169000.0-2298000.0-2175000.0-2187000.0-2894000.0-2882000.013170000.0-5758000.0132000.0157000.0-386000.037000.072000.0
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.00.0-0.00.00.00.00.00.00.00.00.00.10.0-0.0-0.0-0.0-0.1-0.4-0.6-0.6-0.4-0.4-0.3-0.3-0.3-0.3-0.41.6-0.80.00.0-0.10.00.0

Net Income Loss Available To Common Stockholders Basic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value5969736475745848776066-15.6946615536405748-0.515103-17.14745-103.3076126
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.713.214.112.713.914.812.511.818.313.814.5-3.611.114.913.09.010.714.313.4-0.128.9-4.86.2-12.38.33.9

Net Income Loss Available To Common Stockholders Diluted

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value5969657364756174584821776066-15.6946615536405748-0.515103-17.14745-103.3076126
Percentage of NetIncomeLossAvailableToCommonStockholdersDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.713.211.814.112.713.912.314.812.511.84.618.313.814.5-3.611.114.913.09.010.714.313.4-0.128.9-4.86.2-12.38.33.9

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value7382898882988298806310350717959739283456288429.6071301170-156.54653553295829860656789659357632174658538
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.615.616.017.116.318.116.519.517.115.321.611.816.217.413.917.622.519.411.316.422.011.72.636.53.29.7-18.78.85.18.136.810.611.17.57.68.310.58.611.68.18.43.210.610.312.45.8

us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-4.76-2.125-6.812-10.732-3.162-1.603-8.65-2.74-4.32-2.039-6.27-5.6-2.461-6.667-9.56-6.304-3.577-2.891-13.456-3.94-5.757-3.2-5.695-4.847-9.833-10.506-18.785-5.352-6.002-2.375-1.704-8.04-7.387-8.908-4.599-6.691
Percentage of OperatingIncomeLoss-6.5-2.6-7.6-12.1-3.8-1.6-10.4-2.8-5.4-3.2-6.1-11.1-3.4-8.3-16.0-8.6-3.9-3.5-29.4-6.3-6.5-7.5-59.3-3.7-84.9-14.812.0-8.2-17.1-4.4-0.6-9.8-7.5-14.8-7.0-9.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.9-0.4-1.2-2.1-0.6-0.3-1.7-0.5-0.9-0.5-1.3-1.3-0.6-1.5-2.2-1.5-0.9-0.7-3.3-1.0-1.4-0.9-1.6-1.4-2.8-1.4-2.2-0.7-0.9-0.4-0.2-1.0-0.8-1.1-0.5-0.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MaterialReconcilingItems


Operating
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value-7.246-5.886-5.714-5.6-5.359-6.948-6.744-6.096-5.142-4.357-4.043
Percentage of OperatingIncomeLoss-9.8-7.1-6.4-6.8-5.5-7.1-8.4-9.6-10.2-6.1-5.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.4-1.1-1.1-1.1-1.0-1.4-1.4-1.5-1.2-1.0-0.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:MaterialReconcilingItems0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value7884979985999110184651095574868079958680669475677064831655535532958298606584
Percentage of OperatingIncomeLoss106.5102.6109.1112.1103.8101.6110.4102.8105.4103.2106.1111.1103.4108.3134.5108.6103.9103.5176.2106.3106.5177.9705.753.5556.8118.4-105.884.4100.0100.0100.0100.0100.0100.0100.0125.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.516.017.519.117.018.418.320.018.015.822.913.116.818.818.719.123.420.120.017.523.420.818.619.518.111.519.87.55.18.136.810.611.17.57.610.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments15.315.80.018.816.718.20.019.817.915.70.013.116.818.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:OperatingSegments, bwxt:NuclearEnergyGroupSegment


Operating
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value1010291.1028.478.9671412
Percentage of OperatingIncomeLoss14.712.532.91.38.69.118.519.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.12.05.60.21.61.83.23.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwxt:NuclearEnergyGroupSegment10.69.627.01.69.610.617.214.9

us-gaap:OperatingSegments, bwxt:NuclearOperationsGroupSegment


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value69748168859071937557
Percentage of OperatingIncomeLoss93.890.291.277.1104.392.086.695.193.490.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.714.114.613.217.016.714.318.516.013.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwxt:NuclearOperationsGroupSegment18.118.50.017.721.021.30.023.721.018.9

us-gaap:OperatingSegments, bwxt:NuclearServicesGroupSegment


Operating
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value5.765.7477.5574.1226.45.5161.491.571
Percentage of OperatingIncomeLoss7.87.08.55.06.55.61.92.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.11.11.50.81.21.10.30.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwxt:NuclearServicesGroupSegment19.122.622.412.417.416.65.05.4

Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value203000.0-578000.0-200000.0-493000.0733000.0-320000.0-431000.0-582000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0-0.1-0.0-0.10.1-0.1-0.1-0.1

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value203000.0-578000.0-200000.0-493000.0733000.0-320000.0-431000.0-582000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0-0.1-0.0-0.10.1-0.1-0.1-0.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.0

us-gaap:Parent


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value203000.0-578000.0-200000.0-493000.0733000.0-320000.0-431000.0-582000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0-0.1-0.0-0.10.1-0.1-0.1-0.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Parent0.00.00.00.00.00.00.00.0

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

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value7.228.001188.7040.856-11.942.56-2.5354.2950.943-4.9172.008-3.609-3.124-1.1884.592.0440.791-2.75-0.2720.0372.076-0.071-3.6332.151-10.93-12.926-6.837-0.531-6.611-0.1885.238-3.824-3.7441.9910-12.7694.78-0.777-9.354
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.41.53.21.70.2-2.20.5-0.50.90.2-1.00.5-0.8-0.7-0.31.10.50.2-0.7-0.10.00.6-0.0-1.00.6-1.5-1.5-0.9-0.1-1.0-0.00.7-0.4-0.50.21.3-1.50.6-0.1-1.3

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value7.228.0018.7040.856-11.94-2.5354.2950.943-4.9172.008-3.609-3.124-1.1884.592.0440.791-2.75-0.2720.0372.076-0.071-3.6332.144-10.948-12.892-6.838-0.534-6.604-0.1995.279-3.821-3.7431.98210-12.7424.768-0.757-9.358
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.099.7100.299.7100.0100.699.9105.9100.899.9100.099.699.899.899.797.4100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.41.51.70.2-2.2-0.50.90.2-1.00.5-0.8-0.7-0.31.10.50.2-0.7-0.10.00.6-0.0-1.00.6-1.5-1.5-0.9-0.1-1.0-0.00.7-0.4-0.50.21.3-1.50.6-0.1-1.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value7.228.0018.7040.856-11.94-2.5354.2950.943-4.9172.008-3.609-3.124-1.1884.592.0440.791-2.75-0.2720.0372.076-0.071-3.6332.144-10.948-12.892-6.838-0.534-6.604-0.1995.279-3.821-3.743
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.099.7100.299.7100.0100.699.9105.9100.899.9100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.41.51.70.2-2.2-0.50.90.2-1.00.5-0.8-0.7-0.31.10.50.2-0.7-0.10.00.6-0.0-1.00.6-1.5-1.5-0.9-0.1-1.0-0.00.7-0.4-0.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value8.0038.092169.1111.126-11.197-0.126-2.394.3840.896-12.6912.294-3.187-2.774-1.3954.5811.2421.215-1.1920.465-0.1543.940.02-4.345-0.427-8.474-13.68-4.6490.073-6.533-1.9586.291-3.798-4.949-36.27524-1.6566.624-34.75-2.716
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.61.53.01.80.2-2.1-0.0-0.50.90.2-2.70.5-0.7-0.6-0.31.10.30.3-0.30.1-0.01.10.0-1.2-0.1-1.2-1.6-0.60.0-1.0-0.20.8-0.4-0.6-4.23.0-0.20.9-4.3-0.42.2

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value5.189.479-1.3193.1121.6460.181-4.255-3.956-2.801-0.767-71.802347.6785.128-3.326-3.087-3.865-2.827-2.321-1.693-0.49622-5.396270.12-1.715-5.888180.581.322-19.395-0.5331.0051.406-0.81-27.3434.328-1.102-1.9712.7084.425-2.994-2.914-6.451-3.945
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.01.8-0.20.60.30.0-0.8-0.8-0.6-0.2-15.08.01.71.1-0.8-0.7-0.9-0.7-0.6-0.4-0.16.2-1.57.60.0-0.2-0.72.50.10.2-2.4-0.10.10.2-0.1-3.40.5-0.1-0.20.40.6-0.4-0.4-1.0-0.6

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value5969657364756174594922786066-15.53346615536405748-0.31104-17.31945-103.5926023411605769447438614362394613533547
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.813.211.814.112.813.912.314.812.511.84.618.313.814.5-3.611.115.013.09.010.714.313.4-0.129.0-4.86.2-12.48.23.46.220.17.47.95.68.64.77.25.77.75.66.22.07.55.76.9

us-gaap:ProfitLoss us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value-0.743-0.414-0.039-0.456-0.52-1.03-1.405-0.447-0.696-0.370.103-0.713-0.527-0.2430.149-0.4770.001-0.239-0.635-0.388-0.2690.585-0.809-2.239
Percentage of ProfitLoss-1.3-0.6-0.1-0.6-0.8-1.4-2.3-0.6-1.2-0.80.5-0.9-0.9-0.4-1.0-1.00.0-0.4-1.7-1.0-0.51.2261.0-2.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.1-0.1-0.0-0.1-0.1-0.2-0.3-0.1-0.1-0.10.0-0.2-0.1-0.10.0-0.10.0-0.1-0.2-0.1-0.10.2-0.2-0.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCredit


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value-0.58-0.58-0.625-0.688-0.609-0.61-0.507-0.519-0.493-0.511-0.355-0.36-0.463-0.322-0.281-0.282-0.289-0.29-0.267-0.267-0.265-0.265-0.232-0.269-0.269-0.331-0.382-2.505-0.397-0.397-0.492-0.49-0.465
Percentage of ProfitLoss-1.0-0.8-0.9-0.9-0.9-0.8-0.8-0.7-0.8-1.0-1.6-0.5-0.8-0.51.8-0.6-0.5-0.5-0.7-0.7-0.5-0.574.8-0.31.6-0.70.4-4.1-1.7-1.0-0.3-0.9-0.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.0-0.0-0.3-0.1-0.1-0.1-0.1-0.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCredit0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-0.1630.1660.5860.2320.089-0.42-0.8980.072-0.2030.141
Percentage of ProfitLoss-0.30.20.90.30.1-0.6-1.50.1-0.30.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.00.00.10.00.0-0.1-0.20.0-0.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedGainLossNetCashFlowHedgeParent171.673.10.0-23.916.242000.00.0-55.4-317.2-1175.0

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value0.0620.0660.0240.1380.1210.1880.1220.1320.1460.1580.071-0.0280.1570.140.1570.0670.1820.1450.1250.1030.2050.164-0.172-0.216-0.285-0.811-2.945-3.89-4.596-3.425-3.169-2.298-2.175-2.187-2.894-2.882-2.232-5.7580.1320.1570.1420.037
Percentage of ProfitLoss0.10.10.00.20.20.30.20.30.70.20.1-0.0-1.00.30.30.10.50.40.20.2-66.10.21.0-0.50.3-1.3-12.5-9.5-2.9-6.0-4.5-5.1-2.9-5.7-4.7-6.6-3.6-14.40.31.10.30.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.0-0.00.00.00.00.00.00.00.00.00.10.0-0.0-0.0-0.0-0.1-0.4-0.6-0.6-0.4-0.4-0.3-0.3-0.3-0.3-0.4-0.3-0.80.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312011-09-302010-12-312010-09-30
Value596973647574584821776066-15.6946615536405748-0.515103-17.14745-103.307612645165607247450.0-7.892
Percentage of ProfitLoss99.999.9100.099.899.899.799.899.799.399.899.9100.0101.099.799.799.999.599.699.899.8166.199.899.0100.599.7101.3112.5109.5102.9106.0104.5105.1114.40.0-22.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.713.214.112.713.914.812.511.84.618.313.814.5-3.611.114.913.09.010.714.313.4-0.128.9-4.86.2-12.38.33.96.820.67.88.25.96.50.0-1.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value596973647574584821776066-15.6946615536405748-0.515103-17.14745-103.307612645165607247764064466445461352
Percentage of ProfitLoss99.999.9100.099.899.899.799.899.799.399.899.9100.0101.099.799.799.999.599.699.899.8166.199.899.0100.599.7101.3112.5109.5102.9106.0104.5105.1102.9105.7104.7106.6103.6114.499.798.999.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.713.214.112.713.914.812.511.84.618.313.814.5-3.611.114.913.09.010.714.313.4-0.128.9-4.86.2-12.38.33.96.820.67.88.25.98.85.07.56.18.06.56.12.07.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Research And Development Expense

us-gaap:ResearchAndDevelopmentExpense

us-gaap:ResearchAndDevelopmentExpense


Research
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value3.5053.1162.6242.9334.0294.6032.0415.1255.3325.1743.553.9594.1073.6071.9222.5971.1521.5191.3641.7461.5661.7311.5381.5183.6538.3469.9418.379302326230.837282927342931342217181716
Percentage of ResearchAndDevelopmentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.70.60.50.60.80.80.41.01.11.20.70.90.90.80.40.60.30.40.30.50.40.50.40.41.01.11.21.14.53.63.33.10.13.53.43.54.03.84.04.93.02.52.62.82.4

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value505528556519504542501506471416477426440459430419410428403379402364363358357730837737686662802774886805865807852765800707752691705632688662
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems

us-gaap:IntersegmentElimination


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-8.219-6.676-8.776-8.435-7.043-6.249-6.12-6.097-3.589-1.84-2.755-1.346-1.512-2.017-1.301-1.313-2.209-2.38-5.655-1.762-0.607-0.268-0.521-0.522-1.6712.569-5.886-3.368-5.7538.788-81.2812-6.9916.228-46.3874.295
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.6-1.3-1.6-1.6-1.4-1.2-1.2-1.2-0.8-0.4-0.6-0.3-0.3-0.4-0.3-0.3-0.5-0.6-1.4-0.5-0.2-0.1-0.1-0.1-0.50.4-0.7-0.5-0.81.3-10.11.6-0.80.8-5.40.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.6-1.3-1.6-1.6-1.4-1.2-1.2-1.2-0.8-0.4-0.6-0.3-0.3-0.4-0.3-0.3-0.5-0.6-1.4-0.5-0.2-0.1-0.1-0.1-0.50.4-0.7-0.5-0.81.3-10.11.6-0.80.8-5.40.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value513534565528511548507512474418480426440459
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax101.6101.3101.6101.6101.4101.2101.2101.2100.8100.4100.6100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax101.6101.3101.6101.6101.4101.2101.2101.2100.8100.4100.6100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:OperatingSegments, bwxt:CostPlusFee, bwxt:NuclearOperationsGroupSegment


Revenue
Period End2021-06-302020-06-30
Value2428
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.95.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.95.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwxt:CostPlusFee bwxt:NuclearOperationsGroupSegment100.0100.0

us-gaap:OperatingSegments, bwxt:CostPlusFee, bwxt:NuclearPowerGroup


Revenue
Period End2021-06-302020-06-30
Value1824
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.74.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.74.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwxt:CostPlusFee bwxt:NuclearPowerGroup100.0100.0

us-gaap:OperatingSegments, bwxt:FirmFixedPrice, bwxt:NuclearOperationsGroupSegment


Revenue
Period End2021-06-302020-06-30
Value3764
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.512.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.512.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwxt:FirmFixedPrice bwxt:NuclearOperationsGroupSegment100.0100.0

us-gaap:OperatingSegments, bwxt:FirmFixedPrice, bwxt:NuclearPowerGroup


Revenue
Period End2021-06-302020-06-30
Value9.1946.911
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.81.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.81.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwxt:FirmFixedPrice bwxt:NuclearPowerGroup100.0100.0

us-gaap:OperatingSegments, bwxt:FirmFixedPrice, bwxt:NuclearServicesGroup


Revenue
Period End2021-06-302020-06-30
Value7561
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.912.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.912.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwxt:FirmFixedPrice bwxt:NuclearServicesGroup100.0100.0

us-gaap:OperatingSegments, us-gaap:FixedPriceContract, bwxt:NuclearOperationsGroupSegment


Revenue
Period End2021-06-302020-06-30
Value318317
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax63.162.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax63.162.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:FixedPriceContract bwxt:NuclearOperationsGroupSegment100.0100.0

us-gaap:OperatingSegments, us-gaap:FixedPriceContract, bwxt:NuclearServicesGroup


Revenue
Period End2021-06-302020-06-30
Value3.730.394
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.70.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.70.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:FixedPriceContract bwxt:NuclearServicesGroup100.0100.0

us-gaap:OperatingSegments, us-gaap:TimeAndMaterialsContract, bwxt:NuclearOperationsGroupSegment


Revenue
Period End2021-06-302020-06-30
Value0.120.052
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:TimeAndMaterialsContract bwxt:NuclearOperationsGroupSegment100.0100.0

us-gaap:OperatingSegments, us-gaap:TimeAndMaterialsContract, bwxt:NuclearPowerGroup


Revenue
Period End2021-06-302020-06-30
Value2.3432.399
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.50.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.50.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:TimeAndMaterialsContract bwxt:NuclearPowerGroup100.0100.0

us-gaap:OperatingSegments, us-gaap:TimeAndMaterialsContract, bwxt:NuclearServicesGroup


Revenue
Period End2021-06-302020-06-30
Value225.723
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.51.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.51.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:TimeAndMaterialsContract bwxt:NuclearServicesGroup100.0100.0

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

us-gaap:OperatingSegments, bwxt:GovernmentCustomers, country:US, bwxt:NuclearOperationsGroupSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value361379406362370401967376343297
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax71.771.873.169.773.374.0193.074.472.871.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax71.771.873.169.773.374.0193.074.472.871.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwxt:GovernmentCustomers country:US bwxt:NuclearOperationsGroupSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, bwxt:GovernmentCustomers, country:US, bwxt:NuclearPowerGroup


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value2722302824-82.041282824-81.17527
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.44.35.95.64.5-16.45.76.15.9-17.06.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.44.35.95.64.5-16.45.76.15.9-17.06.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwxt:GovernmentCustomers country:US bwxt:NuclearPowerGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, bwxt:NonGovernment, bwxt:Other, bwxt:NuclearOperationsGroupSegment


Revenue
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302019-03-31
Value1.2631.7762.1086.3621.8340.6922.16
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.30.41.30.40.10.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.30.41.30.40.10.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwxt:NonGovernment bwxt:Other bwxt:NuclearOperationsGroupSegment100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, bwxt:NonGovernment, bwxt:Other, bwxt:NuclearServicesGroup


Revenue
Period End2020-09-302020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value9.2673.614-23.245.108116.626-50.7581010
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.80.7-4.61.02.41.6-10.62.42.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.80.7-4.61.02.41.6-10.62.42.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwxt:NonGovernment bwxt:Other bwxt:NuclearServicesGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, bwxt:NonGovernment, bwxt:OtherGeographicLocation, bwxt:NuclearOperationsGroupSegment


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value1.3292.1592.1081.868
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.40.40.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.40.40.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwxt:NonGovernment bwxt:OtherGeographicLocation bwxt:NuclearOperationsGroupSegment100.0100.0100.0100.0

us-gaap:OperatingSegments, bwxt:NonGovernment, bwxt:OtherGeographicLocation, bwxt:NuclearPowerGroup


Revenue
Period End2021-06-302021-03-31
Value0.0220.026
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwxt:NonGovernment bwxt:OtherGeographicLocation bwxt:NuclearPowerGroup100.0100.0

us-gaap:OperatingSegments, bwxt:NonGovernment, bwxt:OtherGeographicLocation, bwxt:NuclearServicesGroup


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value5.7785.7713.6143.782
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.11.10.70.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.11.10.70.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwxt:NonGovernment bwxt:OtherGeographicLocation bwxt:NuclearServicesGroup100.0100.0100.0100.0

us-gaap:OperatingSegments, bwxt:NonGovernment, country:CA, bwxt:NuclearPowerGroup


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.6341.023060.9341.1110.962860.6890.2180.292920.6110.51
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.255.00.20.20.257.20.10.00.161.20.10.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.255.00.20.20.257.20.10.00.161.20.10.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwxt:NonGovernment country:CA bwxt:NuclearPowerGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, bwxt:NonGovernment, country:CA, bwxt:NuclearServicesGroup


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value8491-216.908895774-201.713696668-209.5446564
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax16.717.3-38.917.211.413.7-40.213.714.016.5-43.815.314.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax16.717.3-38.917.211.413.7-40.213.714.016.5-43.815.314.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwxt:NonGovernment country:CA bwxt:NuclearServicesGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, bwxt:NonGovernment, country:US, bwxt:NuclearOperationsGroupSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1820172238203016145.338
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.63.93.14.37.53.86.23.23.11.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.63.93.14.37.53.86.23.23.11.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwxt:NonGovernment country:US bwxt:NuclearOperationsGroupSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, bwxt:NonGovernment, country:US, bwxt:NuclearPowerGroup


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value2.221.668182.0953.73111293.7810.7884.3538.4360.5363.91
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.40.33.30.40.72.15.80.70.21.01.80.10.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.40.33.30.40.72.15.80.70.21.01.80.10.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwxt:NonGovernment country:US bwxt:NuclearPowerGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, bwxt:NonGovernment, country:US, bwxt:NuclearServicesGroup


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1110-7.0159.4796.9899.608-10.358108.9739.1627.3543.890.327
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.31.9-1.31.81.41.8-2.12.01.92.21.50.90.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.31.9-1.31.81.41.8-2.12.01.92.21.50.90.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwxt:NonGovernment country:US bwxt:NuclearServicesGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:IntersegmentElimination, bwxt:NuclearEnergyGroupSegment


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value-0.343-0.181-0.056-0.145-0.129-0.073-0.033-0.04
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.1-0.0-0.0-0.0-0.0-0.0-0.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.1-0.0-0.0-0.0-0.0-0.0-0.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination bwxt:NuclearEnergyGroupSegment100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IntersegmentElimination, bwxt:NuclearOperationsGroupSegment


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value-1.523-0.94-0.97-0.863-0.673-1.26-1.047-0.857
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.3-0.2-0.2-0.2-0.1-0.2-0.2-0.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.3-0.2-0.2-0.2-0.1-0.2-0.2-0.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination bwxt:NuclearOperationsGroupSegment100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IntersegmentElimination, bwxt:NuclearServicesGroupSegment


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value-6.353-5.555-7.409-6.035-5.447-4.764-2.509-0.943
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.3-1.1-1.4-1.2-1.0-0.9-0.5-0.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.3-1.1-1.4-1.2-1.0-0.9-0.5-0.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination bwxt:NuclearServicesGroupSegment100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, bwxt:NuclearEnergyGroupSegment


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value1011071086787848684
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.220.320.813.516.216.718.420.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.220.320.813.516.216.718.420.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwxt:NuclearEnergyGroupSegment100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, bwxt:NuclearOperationsGroupSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value381402425386410423370394358304
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax75.576.176.474.381.378.274.078.076.073.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax75.576.176.474.381.378.274.078.076.073.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwxt:NuclearOperationsGroupSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, bwxt:NuclearPowerGroup


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3025267333336260332929987975112
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.04.848.06.56.66.852.06.66.37.020.618.517.224.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.04.848.06.56.66.852.06.66.37.020.618.517.224.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwxt:NuclearPowerGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, bwxt:NuclearServicesGroup


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value101107-127.5111086787-124.07584868431283230
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.220.3-22.920.813.516.2-24.816.718.420.36.66.67.46.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.220.3-22.920.813.516.2-24.816.718.420.36.66.67.46.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwxt:NuclearServicesGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, bwxt:NuclearServicesGroupSegment


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value3025333336332929
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.04.86.56.66.86.66.37.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.04.86.56.66.86.66.37.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwxt:NuclearServicesGroupSegment100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:OperatingSegments, bwxt:NuclearOperationsGroupSegment, us-gaap:TransferredAtPointInTime


Revenue
Period End2021-06-302020-06-30
Value0.0880.048
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwxt:NuclearOperationsGroupSegment us-gaap:TransferredAtPointInTime100.0100.0

us-gaap:OperatingSegments, bwxt:NuclearOperationsGroupSegment, us-gaap:TransferredOverTime


Revenue
Period End2021-06-302020-06-30
Value381410
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax75.581.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax75.581.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwxt:NuclearOperationsGroupSegment us-gaap:TransferredOverTime100.0100.0

us-gaap:OperatingSegments, bwxt:NuclearPowerGroup, us-gaap:TransferredOverTime


Revenue
Period End2021-06-302020-06-30
Value3033
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.06.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.06.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwxt:NuclearPowerGroup us-gaap:TransferredOverTime100.0100.0

us-gaap:OperatingSegments, bwxt:NuclearServicesGroup, us-gaap:TransferredAtPointInTime


Revenue
Period End2021-06-302020-06-30
Value9.9856.393
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.01.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.01.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwxt:NuclearServicesGroup us-gaap:TransferredAtPointInTime100.0100.0

us-gaap:OperatingSegments, bwxt:NuclearServicesGroup, us-gaap:TransferredOverTime


Revenue
Period End2021-06-302020-06-30
Value9161
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax18.212.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax18.212.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwxt:NuclearServicesGroup us-gaap:TransferredOverTime100.0100.0

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

us-gaap:OperatingSegments, country:US, bwxt:NuclearOperationsGroupSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value380399424384408421367392357302
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax75.275.776.274.080.977.873.377.675.972.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax75.275.776.274.080.977.873.377.675.972.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments country:US bwxt:NuclearOperationsGroupSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, country:US, bwxt:NuclearPowerGroup


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value2924-65.363323235-52.905322928-72.7392732
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.84.6-11.76.36.46.6-10.66.46.36.9-15.26.57.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.84.6-11.76.36.46.6-10.66.46.36.9-15.26.57.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments country:US bwxt:NuclearPowerGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, country:US, bwxt:NuclearServicesGroup


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value11101069.4796.9899.608100108.9739.1621153.890.327
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.31.919.01.81.41.820.12.01.92.224.10.90.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.31.919.01.81.41.820.12.01.92.224.10.90.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments country:US bwxt:NuclearServicesGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ContractWithCustomerBasisOfPricing

bwxt:CostPlusFee


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value4342505552484546484237484744
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.68.09.010.610.58.99.19.310.210.27.811.410.89.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.68.09.010.610.58.99.19.310.210.27.811.410.89.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwxt:CostPlusFee100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwxt:FirmFixedPrice


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value122148173132132195150143117107140101102126
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax24.228.231.225.526.436.129.928.325.025.829.523.723.327.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax24.228.231.225.526.436.129.928.325.025.829.523.723.327.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwxt:FirmFixedPrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FixedPriceContract


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value322302315309317284291302300245280259263253
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax63.957.356.759.662.952.558.259.863.859.058.760.859.955.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax63.957.356.759.662.952.558.259.863.859.058.760.859.955.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:FixedPriceContract100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TimeAndMaterialsContract


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value254125308.1741919198.4772222172635
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.07.84.65.91.63.64.03.81.85.44.64.16.17.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.07.84.65.91.63.64.03.81.85.44.64.16.17.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:TimeAndMaterialsContract100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ContractWithCustomerBasisOfPricing, us-gaap:StatementBusinessSegments

bwxt:CostPlusFee, bwxt:NuclearOperationsGroupSegment


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value242729282553192219
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.65.05.75.74.810.73.94.74.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.65.05.75.74.810.73.94.74.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwxt:CostPlusFee bwxt:NuclearOperationsGroupSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwxt:CostPlusFee, bwxt:NuclearPowerGroup


Revenue
Period End2021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value17252422-74.392625220.00.00.00.045
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.44.94.84.1-14.85.35.55.40.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.44.94.84.1-14.85.35.55.40.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwxt:CostPlusFee bwxt:NuclearPowerGroup100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0

bwxt:FirmFixedPrice, bwxt:NuclearOperationsGroupSegment


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value7581466411397723639
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.314.79.012.720.919.414.47.89.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.314.79.012.720.919.414.47.89.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwxt:FirmFixedPrice bwxt:NuclearOperationsGroupSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwxt:FirmFixedPrice, bwxt:NuclearPowerGroup


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value5.542725.7476.911112665.8063.9046.16875584474
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.048.91.11.42.153.11.10.81.515.913.710.116.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.048.91.11.42.153.11.10.81.515.913.710.116.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwxt:FirmFixedPrice bwxt:NuclearPowerGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwxt:FirmFixedPrice, bwxt:NuclearServicesGroup


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value68-180.116796170-177.7986477617.8594.3935.6325.41
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.9-32.315.312.313.1-35.512.816.414.91.61.01.31.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.9-32.315.312.313.1-35.512.816.414.91.61.01.31.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwxt:FirmFixedPrice bwxt:NuclearServicesGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FixedPriceContract, bwxt:NuclearOperationsGroupSegment


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value302315309317284853302299245
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax57.256.759.662.952.4170.359.763.558.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax57.256.759.662.952.4170.359.763.558.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:FixedPriceContract bwxt:NuclearOperationsGroupSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FixedPriceContract, bwxt:NuclearServicesGroup


Revenue
Period End2021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.490.3020.3940.492-2.0780.4971.3080.2730.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.10.10.1-0.40.10.30.10.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.10.10.1-0.40.10.30.10.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:FixedPriceContract bwxt:NuclearServicesGroup100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:TimeAndMaterialsContract, bwxt:NuclearOperationsGroupSegment


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.1940.2890.3030.0520.0680.264-0.2640.2140.118
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.10.10.00.00.1-0.10.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.10.10.00.00.1-0.10.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:TimeAndMaterialsContract bwxt:NuclearOperationsGroupSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TimeAndMaterialsContract, bwxt:NuclearPowerGroup


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1.963652.4352.3992.635660.6010.1450.39119162534
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.411.80.50.50.513.20.10.00.14.14.05.97.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.411.80.50.50.513.20.10.00.14.14.05.97.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:TimeAndMaterialsContract bwxt:NuclearPowerGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TimeAndMaterialsContract, bwxt:NuclearServicesGroup


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value38-40.527285.72316-46.326188.118220.5530.4770.8780.67
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.4-7.35.41.13.1-9.23.71.75.30.10.10.20.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.4-7.35.41.13.1-9.23.71.75.30.10.10.20.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:TimeAndMaterialsContract bwxt:NuclearServicesGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:MajorCustomers, us-gaap:StatementGeographical

bwxt:GovernmentCustomers, country:US


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value389402392398425405371321342
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax77.176.175.679.078.580.078.977.380.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax77.176.175.679.078.580.078.977.380.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwxt:GovernmentCustomers country:US100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwxt:NonGovernment, bwxt:Other


Revenue
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value11115.7225.656.9386.942128.7865.798111130
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.02.11.11.01.41.42.62.11.22.62.56.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.02.11.11.01.41.42.62.11.22.62.56.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwxt:NonGovernment bwxt:Other100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwxt:NonGovernment, bwxt:OtherGeographicLocation


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value7.1297.9565.7225.65
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.41.51.11.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.41.51.11.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwxt:NonGovernment bwxt:OtherGeographicLocation100.0100.0100.0100.0

bwxt:NonGovernment, country:CA


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value8592899058758569666883666583
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax16.917.516.117.411.613.917.013.814.116.517.415.514.818.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax16.917.516.117.411.613.917.013.814.116.517.415.514.818.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwxt:NonGovernment country:CA100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwxt:NonGovernment, country:US


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3132344841302418146.4928.0863.437
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.36.26.69.77.76.05.24.52.91.51.80.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.36.26.69.77.76.05.24.52.91.51.80.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwxt:NonGovernment country:US100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-0.0950.2270.386-0.9710.551-0.001-0.054-0.130.064-0.012
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.00.00.1-0.20.1-0.0-0.0-0.00.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.00.00.1-0.20.1-0.0-0.0-0.00.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedGainLossNetCashFlowHedgeParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementBusinessSegments

bwxt:NuclearOperationsGroupSegment


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value402425386410423370394358304
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax76.176.474.381.378.274.078.076.073.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax76.176.474.381.378.274.078.076.073.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwxt:NuclearOperationsGroupSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwxt:NuclearPowerGroup


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value25267333336260332929987975112
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.848.06.56.66.852.06.66.37.020.618.517.224.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.848.06.56.66.852.06.66.37.020.618.517.224.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwxt:NuclearPowerGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwxt:NuclearServicesGroup


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value107-127.5111086787-124.07584868431283230
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.3-22.920.813.516.2-24.816.718.420.36.66.67.46.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.3-22.920.813.516.2-24.816.718.420.36.66.67.46.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwxt:NuclearServicesGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementBusinessSegments, us-gaap:TimingOfTransferOfGoodOrService

bwxt:NuclearOperationsGroupSegment, us-gaap:TransferredAtPointInTime


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.0250.0220.0590.0480.0360.2030.0770.0580.068
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwxt:NuclearOperationsGroupSegment us-gaap:TransferredAtPointInTime100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwxt:NuclearOperationsGroupSegment, us-gaap:TransferredOverTime


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value4024253864104231004394358304
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax76.176.474.381.378.2200.477.976.073.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax76.176.474.381.378.2200.477.976.073.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwxt:NuclearOperationsGroupSegment us-gaap:TransferredOverTime100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwxt:NuclearPowerGroup, us-gaap:TransferredOverTime


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value25218333336212332929946669105
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.839.36.56.66.842.56.66.37.019.815.515.722.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.839.36.56.66.842.56.66.37.019.815.515.722.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwxt:NuclearPowerGroup us-gaap:TransferredOverTime100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwxt:NuclearServicesGroup, us-gaap:TransferredAtPointInTime


Revenue
Period End2021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value13176.39310-37.3789.79413130.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.63.31.32.0-7.51.92.93.30.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.63.31.32.0-7.51.92.93.30.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwxt:NuclearServicesGroup us-gaap:TransferredAtPointInTime100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

bwxt:NuclearServicesGroup, us-gaap:TransferredOverTime


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value93-93.257906177-86.69774727031283230
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax17.8-16.717.512.214.2-17.314.715.417.06.66.67.46.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax17.8-16.717.512.214.2-17.314.715.417.06.66.67.46.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwxt:NuclearServicesGroup us-gaap:TransferredOverTime100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementGeographical

country:US


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value420434438426447467399435396340387349364345
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax83.382.378.882.188.786.279.886.084.181.881.081.882.775.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax83.382.378.882.188.786.279.886.084.181.881.081.882.775.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:US100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:TimingOfTransferOfGoodOrService

us-gaap:TransferredAtPointInTime


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value101314176.44110109.87113133.744126.3737.707
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.02.62.63.31.32.02.02.03.03.30.83.01.41.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.02.62.63.31.32.02.02.03.03.30.83.01.41.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:TransferredAtPointInTime100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TransferredOverTime


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value503521551511505537497502460404477413434451
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax99.698.799.098.3100.199.299.299.397.897.199.897.098.698.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax99.698.799.098.3100.199.299.299.397.897.199.897.098.698.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:TransferredOverTime100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value505528556519504542501506471416477425438457430419410428403379402364363358357730837737686662802774886805865807852765800707752691705632688662
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.099.799.799.6100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Selling General And Administrative Expense

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:SellingGeneralAndAdministrativeExpense


Selling
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value5958606255525852545154535153635148517049524555475410813710810194661021061031091051071061111029710211298101
Percentage of SellingGeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.711.010.912.010.99.811.710.411.512.411.512.611.711.714.812.311.811.917.313.012.912.415.113.215.314.916.414.814.914.38.313.212.112.912.613.012.713.813.914.412.914.815.915.614.8

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-31
Value2566235122932124197119661908182617561716165517351742153917121723162416171579136514011365138214101337279228562656262624992609273927252749284028032781273627892545257825002603
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquityMethodInvestee


Assetsus-gaap:
Period End2020-12-312019-12-31
Value492443
Percentage of Assets21.523.2
Percentage of Assets21.523.2
Percentage of Assets us-gaap:EquityMethodInvestee100.0100.0

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value256623512293212419711966190818261756171616551735174215391712172316241617157913651401136513821410133727922856265626262499260927392725274928402803278127362789254525782500
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesAndStockholdersEquity us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquityMethodInvestee


Liabilities
Period End2020-12-312019-12-31
Value492443
Percentage of LiabilitiesAndStockholdersEquity21.523.2
Percentage of Assets21.523.2
Percentage of Assets us-gaap:EquityMethodInvestee100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value7086566175504814294043542942422353923883452853072632051501182922672653172421031998112411201178116410229699689861043970899825879830712
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets27.627.926.925.924.421.821.219.416.714.114.222.622.322.416.717.916.212.79.58.720.819.619.222.518.237.035.042.342.747.244.637.335.635.234.737.234.932.929.634.632.228.5

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value92275977370962368762962158757754268489070287383074574369361766463464770562714201473137113291339143714301417144015211488145914091487132912891209
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets36.032.333.733.431.734.933.034.033.433.632.839.551.145.751.048.245.946.043.945.247.446.446.850.046.950.951.651.650.653.655.152.252.052.453.653.152.551.553.352.250.048.4

us-gaap:AssetsCurrent us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquityMethodInvestee


Assets
Period End2020-12-312019-12-31
Value492442
Percentage of AssetsCurrent63.670.2
Percentage of Assets21.523.2
Percentage of Assets us-gaap:EquityMethodInvestee99.899.7

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-312008-12-31
Value19057424461778613342229663171432032031479512545976715413546274312196215208346219242261383200206249415261258292391177240469279
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.42.51.92.13.13.94.50.72.01.31.83.818.29.311.911.89.15.98.03.37.05.011.29.63.59.811.07.48.28.313.38.08.99.513.57.17.49.114.910.310.00.015.60.00.018.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value1966348506783922041293673326151213213157104134
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.72.72.12.43.44.24.81.12.41.72.24.218.79.812.412.49.76.58.5

Short Term Investments

us-gaap:ShortTermInvestments

us-gaap:ShortTermInvestments


Short
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value3.33.8273.7073.6993.713.6945.8433.6183.6143.6013.5972.7321.8241.0342.9343.2344.446121414144.1563.4762.2514.505104.837194.2496.34810456993881391551116839270.234
Percentage of ShortTermInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.20.20.20.20.20.30.20.20.20.20.20.10.10.20.20.30.80.91.11.10.30.30.20.30.40.20.70.20.30.41.72.53.43.15.05.64.12.51.61.10.0

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value615715385646356716865129194200174189160145187135157133157153180146404430424381328360414407374364371339329305345353289
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.42.56.74.03.33.23.03.93.93.87.811.211.511.311.19.39.011.68.611.59.511.511.112.811.014.515.116.014.513.113.815.114.913.612.813.212.212.011.013.613.711.6

Inventory Net

us-gaap:InventoryNet

us-gaap:InventoryNet


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value14131513121117171615161511108.68.77.98.07.78.07.68.67.3111011109108116112109113113111117124131115114107108105100
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.60.70.60.60.60.91.00.90.91.00.90.70.70.50.50.50.50.50.60.50.60.50.80.93.93.84.44.34.44.34.24.14.34.44.74.24.23.84.34.14.0

Other Assets Current

us-gaap:OtherAssetsCurrent

us-gaap:OtherAssetsCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value443944403837414140454344323330282930292432332421424946577061474550534128334433547734
Percentage of OtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.71.71.91.92.01.92.22.22.32.72.62.61.92.21.81.71.81.91.91.82.32.51.81.53.21.81.62.22.72.51.81.71.81.91.51.01.21.61.22.13.01.4

Assets Noncurrent

us-gaap:AssetsNoncurrent us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:AssetsNoncurrent

us-gaap:EquityMethodInvestee


Assets
Period End2020-12-312019-12-31
Value970000.01285000.0
Percentage of AssetsNoncurrent100.0100.0
Percentage of Assets0.00.1
Percentage of Assets us-gaap:EquityMethodInvestee0.20.3

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value16471585152514101344127512721233118211501132107310341023101397494593192287986785684683182711711167117911781138112611111114110710991070104610381017994996968
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets64.267.466.566.468.264.866.667.567.367.068.461.959.366.559.256.558.257.658.464.461.962.761.358.961.942.040.944.444.945.643.240.640.940.338.738.237.638.036.539.138.738.7

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AssetUnderConstruction


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value46945142035429927126514710759567182697047
Percentage of PropertyPlantAndEquipmentGross28.528.527.625.122.321.320.913.010.66.46.76.17.36.36.94.9
Percentage of Assets18.319.218.316.715.213.813.98.96.33.84.12.53.22.42.51.9
Percentage of Assets us-gaap:AssetUnderConstruction0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Building


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value288274267256254233221205167156146253249241224225
Percentage of PropertyPlantAndEquipmentGross17.517.317.618.219.018.317.418.216.617.017.221.722.222.022.123.2
Percentage of Assets11.211.711.712.112.911.911.612.49.89.910.68.99.68.58.19.0
Percentage of Assets us-gaap:Building0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Land


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value9.5969.5919.5859.3569.3499.3388.9198.7848.6958.5968.5891511111111
Percentage of PropertyPlantAndEquipmentGross0.60.60.60.70.70.70.70.80.90.91.01.31.01.11.11.2
Percentage of Assets0.40.40.40.40.50.50.50.50.50.50.60.50.40.40.40.5
Percentage of Assets us-gaap:Land0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MachineryAndEquipment


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value879849827789780761775770728697635827782776710684
Percentage of PropertyPlantAndEquipmentGross53.453.654.356.058.059.761.068.171.975.675.070.869.570.769.870.7
Percentage of Assets34.336.136.137.239.638.740.746.642.644.246.028.930.027.325.527.4
Percentage of Assets us-gaap:MachineryAndEquipment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value704701709695688681691719708696693684676673664661647635622615604592578568562742730716708690679667670661652639621611595586579550
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets27.529.830.932.734.934.636.239.440.340.541.939.438.843.838.838.439.939.339.445.143.143.441.840.342.026.625.627.027.027.626.024.424.624.123.022.822.322.321.323.022.522.0

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-31
Value942884816715656594580514473454439389357349348312298296299263262264268262265428436463469448447443443445447431425427422408416418430
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets36.737.635.633.733.330.230.428.127.026.426.522.420.522.720.418.218.418.319.019.318.819.419.518.619.815.415.317.417.917.917.116.216.316.215.715.415.315.615.116.016.216.716.5

us-gaap:PropertyPlantAndEquipmentNet us-gaap:StatementGeographical

country:CA


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value2128648404317273845414140
Percentage of PropertyPlantAndEquipmentNet26.114.811.111.514.46.76.38.710.29.910.09.3
Percentage of Assets9.34.52.92.32.71.31.01.51.61.51.71.5
Percentage of Assets country:CA0.00.00.00.00.00.00.00.00.00.00.00.0

country:US


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value603494390308256250366367363348345360
Percentage of PropertyPlantAndEquipmentNet73.985.288.988.585.693.383.982.281.382.582.783.7
Percentage of Assets26.325.923.618.016.218.212.814.112.812.513.813.8
Percentage of Assets country:US0.00.00.00.00.00.00.00.00.00.00.00.0

Investments In Affiliates Subsidiaries Associates And Joint Ventures

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures


Investments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-31
Value7874717370717070686563625747433941424247453632333113314014115818518420120118918619818617816316615510068
Percentage of InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.03.23.13.53.63.63.73.93.93.83.93.63.33.12.52.32.52.62.73.53.32.72.32.42.44.84.95.36.17.47.17.47.46.96.67.16.76.55.96.56.04.02.6

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, bwxt:NuclearServicesGroup


Investments
Period End2020-12-312019-12-312018-12-312017-12-31
Value71706343
Percentage of InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures100.0100.0100.0100.0
Percentage of Assets3.13.73.92.5
Percentage of Assets us-gaap:OperatingSegments bwxt:NuclearServicesGroup0.00.00.00.0

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-31
Value287285283275274271275277278275274278215216218217214211210168168168168168169376379395396281281281280280280280278276276269272269262
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.212.212.413.013.913.814.415.215.916.116.616.112.414.112.812.613.213.113.312.412.012.412.212.012.613.513.314.915.111.310.810.310.310.29.910.010.010.19.910.610.610.810.1

us-gaap:Goodwill us-gaap:StatementBusinessSegments

bwxt:NuclearPowerGroup


Goodwillus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value4545118625412
Percentage of Goodwill15.916.343.128.626.07.4
Percentage of Assets2.02.47.13.63.50.9
Percentage of Assets bwxt:NuclearPowerGroup0.00.00.00.00.00.0

bwxt:NuclearServicesGroup


Goodwillus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value12711945454545
Percentage of Goodwill45.043.416.420.621.326.7
Percentage of Assets5.66.32.72.62.83.3
Percentage of Assets bwxt:NuclearServicesGroup0.00.00.00.00.00.0

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value192193192189186185191191195194228240103106110113113113114565757585859105110114119808182858787103105103111
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.58.28.48.99.59.410.010.511.111.313.813.85.96.96.46.67.07.07.34.24.14.24.24.24.43.83.94.34.63.23.13.03.13.23.13.74.24.00.0

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:FiniteLivedIntangibleAssetsNet


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value148147184667014653642576058
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.57.711.23.94.51.02.31.41.52.12.42.2

Deferred Tax Assets Liabilities Net

us-gaap:DeferredTaxAssetsLiabilitiesNet

us-gaap:DeferredTaxAssetsLiabilitiesNet


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value49586277171177302200292335318
Percentage of DeferredTaxAssetsLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.23.13.84.510.812.810.67.710.312.012.7

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2020-12-312019-09-302019-06-302019-03-312019-01-01
Value4142444445
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0
Percentage of Assets1.82.32.52.60.0

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value100979698969495818280352624222223191714271817194349686248494145828386173174209204194185182191
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.94.24.24.64.94.85.04.54.74.72.21.51.41.51.31.41.21.10.92.01.31.31.43.13.72.52.21.81.91.71.73.03.13.16.16.27.57.57.07.37.17.7

Equity Securities Fv Ni

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

us-gaap:EquitySecuritiesFvNi

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:MutualFund


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value7358000.06897000.06755000.06120000.05752000.04962000.05685000.05316000.05283000.04694000.0
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.30.30.30.30.30.30.30.30.3
Percentage of Assets us-gaap:FairValueInputsLevel2 us-gaap:FairValueMeasurementsRecurring us-gaap:MutualFund0.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring, us-gaap:EquitySecurities


Equity
Period End2021-06-302021-03-312020-12-312019-12-312019-09-302019-06-302018-12-31
Value800000.0800000.0800000.00000
Percentage of EquitySecuritiesFvNi10.911.611.80.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.0
Percentage of Assets us-gaap:FairValueInputsLevel3 us-gaap:FairValueMeasurementsRecurring us-gaap:EquitySecurities0.00.00.00.00.00.00.0

us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:MutualFund


Equity
Period End2020-12-312019-12-31
Value6755000.05685000.0
Percentage of EquitySecuritiesFvNi100.0100.0
Percentage of Assets0.30.3
Percentage of Assets us-gaap:FairValueInputsLevel2 us-gaap:FairValueMeasurementsRecurring us-gaap:MutualFund0.00.0

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring, us-gaap:EquitySecurities


Equity
Period End2020-12-312019-12-31
Value800000.00
Percentage of EquitySecuritiesFvNi11.80.0
Percentage of Assets0.00.0
Percentage of Assets us-gaap:FairValueInputsLevel3 us-gaap:FairValueMeasurementsRecurring us-gaap:EquitySecurities0.00.0

us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:FairValueMeasurementsRecurring, us-gaap:EquitySecurities


Equity
Period End2021-06-302021-03-312020-12-312019-12-312019-09-302019-06-302018-12-31
Value800000.0800000.0800000.02172000.02511000.02242000.01163000.0
Percentage of EquitySecuritiesFvNi10.911.611.838.247.242.424.8
Percentage of Assets0.00.00.00.10.10.10.1
Percentage of Assets us-gaap:FairValueMeasurementsRecurring us-gaap:EquitySecurities0.00.00.00.00.00.00.0

us-gaap:FairValueMeasurementsRecurring, us-gaap:MutualFund


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value7358000.06897000.06755000.06120000.05752000.04962000.05685000.05316000.05283000.04694000.0
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.30.30.30.30.30.30.30.30.3
Percentage of Assets us-gaap:FairValueMeasurementsRecurring us-gaap:MutualFund0.00.00.00.00.00.00.00.00.00.0

us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType

us-gaap:FairValueMeasurementsRecurring, us-gaap:EquitySecurities


Equity
Period End2020-12-312019-12-31
Value800000.02172000.0
Percentage of EquitySecuritiesFvNi11.838.2
Percentage of Assets0.00.1
Percentage of Assets us-gaap:FairValueMeasurementsRecurring us-gaap:EquitySecurities0.00.0

us-gaap:FairValueMeasurementsRecurring, us-gaap:MutualFund


Equity
Period End2020-12-312019-12-31
Value6755000.05685000.0
Percentage of EquitySecuritiesFvNi100.0100.0
Percentage of Assets0.30.3
Percentage of Assets us-gaap:FairValueMeasurementsRecurring us-gaap:MutualFund0.00.0

us-gaap:EquitySecuritiesFvNi us-gaap:FinancialInstrument

us-gaap:EquitySecurities


Equity
Period End2020-12-312019-12-312018-12-31
Value800000.02172000.01163000.0
Percentage of EquitySecuritiesFvNi11.838.224.8
Percentage of Assets0.00.10.1
Percentage of Assets us-gaap:EquitySecurities0.00.00.0

us-gaap:MutualFund


Equity
Period End2020-12-312019-12-312018-12-31
Value6755000.05685000.04694000.0
Percentage of EquitySecuritiesFvNi100.0100.0100.0
Percentage of Assets0.30.30.3
Percentage of Assets us-gaap:MutualFund0.00.00.0

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value1431461841621411231701221089811410088999389688099768372746077199247212199233319268265280264269247224237213199185
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.66.28.07.67.26.38.96.76.25.76.95.85.16.45.55.24.25.06.35.66.05.35.44.35.87.18.78.07.69.412.39.89.710.29.39.68.98.28.58.47.77.4

Contract With Customer Liability Current

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:ContractWithCustomerLiabilityCurrent


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312018-01-01
Value10599836764807566678898104777773
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.14.23.63.23.34.14.03.63.85.15.96.04.55.00.0

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value801403529382375343404333315325377359309327528459392382439381387372353377344733819711695808927991101410091079101610841075115410281043981
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets31.217.223.118.019.017.421.218.318.019.022.820.717.821.230.826.724.223.627.827.927.727.325.626.825.826.328.726.826.532.335.536.237.236.738.036.239.039.341.440.440.539.3

us-gaap:LiabilitiesCurrent us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquityMethodInvestee


Liabilities
Period End2020-12-312019-12-31
Value270219
Percentage of LiabilitiesCurrent51.154.3
Percentage of Assets11.811.5
Percentage of Assets us-gaap:EquityMethodInvestee54.949.5

Long Term Debt Current

us-gaap:LongTermDebtCurrent

us-gaap:LongTermDebtCurrent


Long
Period End2021-06-302019-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value4001415150.2220.2140.2051.763
Percentage of LongTermDebtCurrent100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets15.60.81.10.50.00.00.00.1

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2020-12-31
Value3300000.0
Percentage of OperatingLeaseLiabilityCurrent100.0
Percentage of Assets0.1

Other Accrued Liabilities Current

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:OtherAccruedLiabilitiesCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value7691786960445248515862534851645538427270687744545960
Percentage of OtherAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.03.93.43.23.12.32.72.72.93.43.83.12.83.43.83.22.42.64.65.24.95.73.33.84.42.1

Long Term Debt

us-gaap:LongTermDebt us-gaap:CreditFacility, us-gaap:DebtInstrument

us-gaap:LongTermDebt

us-gaap:LetterOfCredit, bwxt:AmendmentNo.1toCreditAgreement


Long
Period End2020-09-302020-06-302019-12-31
Value666465
Percentage of LongTermDebt100.0100.0100.0
Percentage of Assets3.13.33.4
Percentage of Assets us-gaap:LetterOfCredit bwxt:AmendmentNo.1toCreditAgreement0.00.00.0

us-gaap:LetterOfCredit, bwxt:NewCreditFacility


Long
Period End2020-12-312019-12-312018-12-312018-06-30
Value68676371
Percentage of LongTermDebt0.0102.90.00.0
Percentage of Assets3.03.53.84.1
Percentage of Assets us-gaap:LetterOfCredit bwxt:NewCreditFacility0.00.00.00.0

us-gaap:RevolvingCreditFacility, bwxt:AmendmentNo.1toCreditAgreement


Long
Period End2020-09-302020-06-302019-12-31
Value11540280
Percentage of LongTermDebt174.061.8426.2
Percentage of Assets5.42.014.7
Percentage of Assets us-gaap:RevolvingCreditFacility bwxt:AmendmentNo.1toCreditAgreement0.00.00.0

us-gaap:RevolvingCreditFacility, bwxt:NewCreditFacility


Long
Period End2020-12-312019-12-312018-12-31
Value75160100
Percentage of LongTermDebt0.0243.50.0
Percentage of Assets3.38.46.0
Percentage of Assets us-gaap:RevolvingCreditFacility bwxt:NewCreditFacility0.00.00.0

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent

us-gaap:LongTermDebtNoncurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value7841018862902826911809849855856753756666471481489489542497423271274285288315281285298260150.2250.2760.3190.3650.430.4750.510.5970.6330.7080.810.855
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets30.643.337.642.541.946.342.446.548.749.945.543.638.230.628.128.430.133.631.531.019.420.120.620.523.610.110.011.29.90.60.00.00.00.00.00.00.00.00.00.00.00.0

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value0.090.0680.002-0.1060.0150.00.0060.0570.0190.0250.0390.0490.0540.1090.3630.3410.350.3130.3920.3390.3190.3081313131515151618181818171614119.8569.1795.5380.8320.666
Percentage of MinorityInterest100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.0-0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.01.01.01.00.50.50.60.60.70.70.70.70.60.60.50.40.40.30.20.00.0

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value322828322415141615159.353151819193433333319191524222957595854596559595860669088879191100
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.31.21.21.51.20.80.80.90.90.90.60.91.11.31.22.02.12.12.21.41.41.11.81.62.22.12.12.22.12.42.52.22.22.12.12.43.33.23.23.63.54.0

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-31
Value1926000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0
Percentage of Assets0.1

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-31
Value1182000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0
Percentage of Assets0.1

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-31
Value697000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0
Percentage of Assets0.0

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value507000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.0

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2020-12-312019-09-302019-06-302019-03-312019-01-01
Value8.7669.38101011
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0
Percentage of Assets0.40.50.60.60.0

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-31
Value10
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0
Percentage of Assets0.5

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2020-12-31
Value1722000.0
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0
Percentage of Assets0.1

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value7086566175504814294043542942422353923883452853072632051501182922672653172421031998112411201178116410229699689861043970899825879830712
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets27.627.926.925.924.421.821.219.416.714.114.222.622.322.416.717.916.212.79.58.720.819.619.222.518.237.035.042.342.747.244.637.335.635.234.737.234.932.929.634.632.228.5

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value709656617550481429404354294242235392388345285308264206150118292267279331256104610141139113611971182104098798510021057982908834885831760713696585120
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets27.627.926.925.924.421.821.219.416.714.114.222.622.322.416.717.916.312.79.58.720.919.620.223.519.237.535.542.943.347.945.338.036.235.835.337.735.333.229.934.832.30.028.50.00.04.6

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquityMethodInvestee


Stockholders
Period End2020-12-312019-12-31
Value222223
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest36.055.4
Percentage of Assets9.711.7
Percentage of Assets us-gaap:EquityMethodInvestee45.150.5

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCredit


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value-14.742-15.322-15.902-14.707-15.395-16.004-16.614-12.872-13.39113-14.395-6.237
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-2.1-2.3-2.6-2.7-3.2-3.7-4.1-3.6-4.65.7-6.1-2.2
Percentage of Assets-0.6-0.7-0.7-0.7-0.8-0.8-0.9-0.7-0.80.8-0.9-0.4
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCredit0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value-0.871-1.074-0.4960.1040.3040.7970.064-0.571-0.251
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-0.1-0.2-0.10.00.10.20.0-0.2-0.1
Percentage of Assets-0.0-0.0-0.00.00.00.00.0-0.0-0.0
Percentage of Assets us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value0.2310.2310.142-0.194-0.113-0.2670.333-0.088-0.0340.061-0.0852.19
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.00.00.0-0.0-0.0-0.10.1-0.0-0.00.0-0.00.8
Percentage of Assets0.00.00.0-0.0-0.0-0.00.0-0.0-0.00.0-0.00.1
Percentage of Assets us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value24168.198-8.408-17.519-18.645-7.448-7.322-4.932-9.316-10.2893.5421.2484.4359.454106.2685.0263.8115.0034.5384.6920.7520.7325.077-4.8963.5961721212830232732-496.443-520.438-518.809-538.628-412.562-409.858-426.062-449.999-403.959-432.454-546.574
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest3.42.51.3-1.5-3.6-4.3-1.8-2.1-1.7-3.8-4.40.90.31.33.33.52.42.42.54.21.61.80.30.22.0-0.50.41.51.91.82.42.92.42.83.3-46.9-53.0-57.1-64.5-46.6-49.3-56.0-63.1-58.0-73.9-452.8
Percentage of Assets0.90.70.4-0.4-0.9-0.9-0.4-0.4-0.3-0.5-0.60.20.10.30.60.60.40.30.20.40.30.30.10.10.4-0.20.10.60.80.91.11.10.91.01.2-17.7-18.7-19.0-19.3-16.2-15.90.0-18.00.00.0-21.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value3932246.389-2.315-3.1718.7696.2098.7444.4493.50613
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest5.64.94.01.2-0.5-0.72.21.83.01.81.54.6
Percentage of Assets1.51.41.10.3-0.1-0.20.50.30.50.30.20.8
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value1641591531481431381341281241191151121081079892877522164936221513784775772764754747740730721713113411251116110610981091108210671056
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest23.324.324.927.029.832.233.236.442.249.249.128.628.031.034.630.033.236.414.613.616.913.68.14.85.274.976.567.867.363.063.271.174.073.271.1107.2114.6122.8132.6124.1131.2142.3149.6151.8
Percentage of Assets6.46.86.77.07.37.07.07.17.17.07.06.56.37.05.85.45.44.61.41.23.52.71.61.11.028.127.129.129.130.228.627.026.826.225.140.540.540.839.743.142.30.042.70.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value1.2731.2731.271.271.2691.2691.2661.2651.2641.2641.2591.2581.2571.2571.2541.2531.2521.2481.2411.2411.2391.2351.2281.2261.2241.2191.2161.2141.2131.2111.2051.2041.2021.21.1961.1941.1921.191.1851.1821.181.1781.171.167
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.20.20.20.20.30.30.30.40.40.50.50.30.30.40.40.40.50.60.81.00.40.50.40.40.50.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.20.20.2
Percentage of Assets0.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value0.090.0680.002-0.1060.0150.00.0060.0570.0190.0250.0390.0490.0540.1090.3630.3410.350.3130.3920.3390.3190.3081313131515151618181818171614119.8569.1795.5380.8320.8590.6660.5580.5010.503
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.00.00.0-0.00.00.00.00.00.00.00.00.00.00.00.10.10.10.20.30.30.10.15.04.25.41.51.51.41.51.51.51.81.81.71.61.41.21.11.10.60.10.10.10.10.10.4
Percentage of Assets0.00.00.0-0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.01.01.01.00.50.50.60.60.70.70.70.70.60.60.50.40.40.30.20.00.00.00.00.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312011-09-302011-06-302010-12-312010-06-302009-12-31
Value7086566175504814294043542942422353923883452853072632051501182922672653172421031998112411201178116410229699689868258798307121017666
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.099.999.999.999.899.799.799.999.995.095.894.698.598.598.698.598.598.598.298.298.398.498.999.499.999.9173.8552.4
Percentage of Assets27.627.926.925.924.421.821.219.416.714.114.222.622.322.416.717.916.212.79.58.720.819.619.222.518.237.035.042.342.747.244.637.335.635.234.729.634.632.228.50.025.6
Percentage of Assets us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value1638159915491502144714011344129912401198116611591097105399010179829318858578267787397466486766427567066906565024503873494173773132662021561109643
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest231.1243.7250.9273.2300.6326.3332.7366.5421.8493.3495.0295.4282.7305.0346.7330.1371.6451.8588.5723.1282.7290.7264.4225.1253.064.763.366.462.157.755.548.345.739.334.839.538.434.431.922.818.814.513.56.3
Percentage of Assets63.968.067.670.773.471.370.471.170.669.870.566.863.068.457.959.060.457.656.062.859.057.053.552.948.524.222.528.526.927.625.218.316.514.112.314.913.611.49.57.96.10.03.90.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-1120.204-1120.146-1095.452-1093.519-1093.287-1093.24-1068.164-1067.622-1067.082-1066.822-1037.795-884.2-820.826-820.749-814.809-814.149-813.25-807.269-762.169-761.956-589.771-553.438-498.346-446.562-425.702-425.586-423.99-423.821-373.776-289.425-268.971-251.997-237.582-168.809-109.809-13.013-12.944-12.889-10.059-9.367-8.264-7.929-2.397-2.189
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-158.0-170.7-177.3-198.8-227.0-254.5-264.3-301.1-362.8-439.2-440.3-225.3-211.4-237.7-285.1-264.1-307.7-391.5-506.7-642.2-201.7-206.6-178.2-134.7-165.9-40.7-41.8-37.2-32.9-24.2-22.7-24.2-24.1-17.1-10.9-1.2-1.3-1.4-1.2-1.1-1.0-1.0-0.3-0.3
Percentage of Assets-43.6-47.6-47.8-51.5-55.5-55.6-56.0-58.5-60.8-62.1-62.7-50.9-47.1-53.3-47.6-47.2-50.1-49.9-48.2-55.8-42.1-40.5-36.1-31.7-31.8-15.2-14.8-16.0-14.2-11.6-10.3-9.2-8.7-6.1-3.9-0.5-0.5-0.5-0.4-0.4-0.30.0-0.10.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value1273000.01273000.01270000.01270000.01269000.01269000.01266000.01265000.01264000.01264000.01259000.01258000.01257000.01257000.01254000.01253000.01252000.01248000.01241000.01241000.01239000.01235000.01228000.01226000.01224000.01219000.01216000.01214000.01213000.01211000.01205000.01204000.01202000.01200000.01196000.01194000.01192000.01190000.01185000.01182000.01180000.01170000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value1641591531481431381341281241191151121081079892877522164936221513784775
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.46.86.77.07.37.07.07.17.17.07.06.56.37.05.85.45.44.61.41.23.52.71.61.11.028.127.1

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value16381599154915021447140113441299124011981166115910971053990101798293188585782677873974664867664275670669065650245038734941737731326620215696
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets63.968.067.670.773.471.370.471.170.669.870.566.863.068.457.959.060.457.656.062.859.057.053.552.948.524.222.528.526.927.625.218.316.514.112.314.913.611.49.57.96.13.9

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value24168.198-8.408-17.519-18.645-7.448-7.322-4.932-9.316-10.2893.5421.2484.4359.454106.2685.0263.8115.0034.5384.6920.7520.7325.077-4.8963.5961721212830232732-496.443-520.438-518.809-538.628-412.562-409.858-449.999
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.90.70.4-0.4-0.9-0.9-0.4-0.4-0.3-0.5-0.60.20.10.30.60.60.40.30.20.40.30.30.10.10.4-0.20.10.60.80.91.11.10.91.01.2-17.7-18.7-19.0-19.3-16.2-15.9-18.0

Treasury Stock Value

us-gaap:TreasuryStockValue

us-gaap:TreasuryStockValue


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value11201120109510931093109310681067106710661037884820820814814813807762761589553498446425425423423373289268251237168109131212109.3678.2642.397
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets43.647.647.851.555.555.656.058.560.862.162.750.947.153.347.647.250.149.948.255.842.140.536.131.731.815.214.816.014.211.610.39.28.76.13.90.50.50.50.40.40.30.1

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value0.090.0680.002-0.1060.0150.00.0060.0570.0190.0250.0390.0490.0540.1090.3630.3410.350.3130.3920.3390.3190.3081313131515151618181818171614119.8569.1795.5380.8320.666
Percentage of MinorityInterest100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.0-0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.01.01.01.00.50.50.60.60.70.70.70.70.60.60.50.40.40.30.20.00.0

Minority Interest Decrease From Distributions To Noncontrolling Interest Holders

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders


Minority
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-312010-09-30
Value40000.0145000.0123000.0127000.0150000.0128000.0146000.0156000.0163000.0126000.0226000.0135000.0149000.0120000.0146000.0129000.0125000.0114000.0143000.0132000.0100000.0131000.0101000.0103000.0108000.0297000.0112000.085000.088000.0224000.0102000.0119000.0678000.0-381000.097000.0706000.0-135000.0-2000.0160000.0
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Minority
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-312010-09-30
Value40000.0145000.0123000.0127000.0150000.0128000.0146000.0156000.0163000.0126000.0226000.0135000.0149000.0120000.0146000.0129000.0125000.0114000.0143000.0132000.0100000.0131000.0101000.0103000.0108000.0297000.0112000.085000.088000.0224000.0102000.0119000.0678000.0-381000.097000.0706000.0-135000.0-2000.0160000.0
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value599848-7.536162-6.4471884364-17.723177-25.75135-18.6057780118-54.67614719143-17.80338-26.315264-4.55528-103.2342195.97729-81.57323018
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.918.68.7-1.432.1-1.237.68.713.7-4.337.2-6.08.2-4.018.019.229.0-12.836.55.117.9-2.34.3-3.330.5-0.63.3-13.527.40.84.0-11.832.72.9

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-67.57-102.032-71.679-64.223-50.644-78.773-57.594-46.733-31.163-44.505-49.715-235.628-25.67-15.711-51.758-17.456-6.533-14.909-139.563-11.244121321-27.30823-6.187-60.285-68.631-65.374.97-67.972-25.95-20.486-51.773
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-13.4-19.3-12.9-12.4-10.0-14.5-11.5-9.2-6.6-10.7-10.4-55.2-5.8-3.4-12.0-4.2-1.6-3.5-34.6-3.01.51.82.4-3.42.7-0.8-7.1-9.0-8.20.7-9.0-3.8-2.9-8.2

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value140191955-128.14877-58.721-18.263-22.16755-163.2156.164172-25.256-17.601-16.991-65.2713873-60.652-27.551-21.468-76.312-65.547-104.616-1.118-4.8582.586-0.141.1190.2876.269-0.105-30.865
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax27.73.73.610.7-25.414.3-11.7-3.6-4.713.3-34.11.439.3-5.5-4.1-4.1-15.99.018.2-16.0-3.4-2.8-8.6-8.1-12.1-0.1-0.60.3-0.00.20.00.9-0.0-4.9

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value13315-2.335-16.923-15.986-8.85872-21.51511-6.686-36.714-253.019174-61.8085553-29.887
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax26.32.9-0.4-3.3-3.2-1.614.4-4.32.5-1.6-7.7-59.339.7-13.513.213.0-7.0

Amortization Of Financing Costs

us-gaap:AmortizationOfFinancingCosts

us-gaap:AmortizationOfFinancingCosts


Amortization
Period End2020-12-312020-09-302019-12-312019-09-30
Value533000.0543000.0394000.0395000.0
Percentage of AmortizationOfFinancingCosts100.0100.0100.0100.0

Depreciation Depletion And Amortization

us-gaap:DepreciationDepletionAndAmortization

us-gaap:DepreciationDepletionAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value1715151414151515151516151414141314131312121113132526482218171917161716171717171718191819
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Accounts Payable

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsPayable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-4.252-12.623-10.8551614-21.158266.9339.5791.612-0.1735.896-14.363103.50215-12.902-14.00316-7.659.1651.129.84-16.11523-41.4483414-47.307-82.16449-0.667-14.33320-7.241928-10.15914179.9256.01617-38.578
Percentage of IncreaseDecreaseInAccountsPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Other Operating Capital Net

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-0.738-5.119-4.466-0.52-3.3780.461131.263-8.1192.8460.1521.961-0.5320.9890.9965.038-4.038-1.25.273-4.025-3.549110.064-17.166-2.4333.2199.743-7.807-8.89-0.36-20.097-9.926-9.2781343-7.382-6.61717-54.23913-15.3852220-8.142
Percentage of IncreaseDecreaseInOtherOperatingCapitalNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value599848-7.536162-6.4471884364-17.723177-25.75135-18.6057780118-54.67614719143-17.80338-26.315264-4.55528-103.2342195.97729-81.57323018
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.918.68.7-1.432.1-1.237.68.713.7-4.337.2-6.08.2-4.018.019.229.0-12.836.55.117.9-2.34.3-3.330.5-0.63.3-13.527.40.84.0-11.832.72.9

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value5969657364756174584821776066-15.69146615533405748-0.515103-17.14745-103.307612645165607247394064466445461352354716
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.713.211.814.112.713.912.314.812.511.84.618.313.814.5-3.611.114.913.08.410.714.313.4-0.128.9-4.86.2-12.38.33.96.820.67.88.25.94.55.07.56.18.06.56.12.07.55.76.92.5

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value5969657364756174594922786066-15.53346615536405748-0.31104-17.31945-103.5926023411605769447438614362394613533547
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.813.211.814.112.813.912.314.812.511.84.618.313.814.5-3.611.115.013.09.010.714.313.4-0.129.0-4.86.2-12.48.23.46.220.17.47.95.68.64.77.25.77.75.66.22.07.55.76.9

us-gaap:ProfitLoss us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value-0.743-0.414-0.039-0.456-0.52-1.03-1.405-0.447-0.696-0.370.103-0.713-0.527-0.2430.149-0.4770.001-0.239-0.635-0.388-0.2690.585-0.809-2.239
Percentage of ProfitLoss-1.3-0.6-0.1-0.6-0.8-1.4-2.3-0.6-1.2-0.80.5-0.9-0.9-0.4-1.0-1.00.0-0.4-1.7-1.0-0.51.2261.0-2.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.1-0.1-0.0-0.1-0.1-0.2-0.3-0.1-0.1-0.10.0-0.2-0.1-0.10.0-0.10.0-0.1-0.2-0.1-0.10.2-0.2-0.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCredit


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value-0.58-0.58-0.625-0.688-0.609-0.61-0.507-0.519-0.493-0.511-0.355-0.36-0.463-0.322-0.281-0.282-0.289-0.29-0.267-0.267-0.265-0.265-0.232-0.269-0.269-0.331-0.382-2.505-0.397-0.397-0.492-0.49-0.465
Percentage of ProfitLoss-1.0-0.8-0.9-0.9-0.9-0.8-0.8-0.7-0.8-1.0-1.6-0.5-0.8-0.51.8-0.6-0.5-0.5-0.7-0.7-0.5-0.574.8-0.31.6-0.70.4-4.1-1.7-1.0-0.3-0.9-0.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.0-0.0-0.3-0.1-0.1-0.1-0.1-0.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCredit0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-0.1630.1660.5860.2320.089-0.42-0.8980.072-0.2030.141
Percentage of ProfitLoss-0.30.20.90.30.1-0.6-1.50.1-0.30.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.00.00.10.00.0-0.1-0.20.0-0.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedGainLossNetCashFlowHedgeParent171.673.1151.8-23.916.242000.01663.0-55.4-317.2-1175.0

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value0.0620.0660.0240.1380.1210.1880.1220.1320.1460.1580.071-0.0280.1570.140.1570.0670.1820.1450.1250.1030.2050.164-0.172-0.216-0.285-0.811-2.945-3.89-4.596-3.425-3.169-2.298-2.175-2.187-2.894-2.882-2.232-5.7580.1320.1570.1420.037
Percentage of ProfitLoss0.10.10.00.20.20.30.20.30.70.20.1-0.0-1.00.30.30.10.50.40.20.2-66.10.21.0-0.50.3-1.3-12.5-9.5-2.9-6.0-4.5-5.1-2.9-5.7-4.7-6.6-3.6-14.40.31.10.30.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.0-0.00.00.00.00.00.00.00.00.00.10.0-0.0-0.0-0.0-0.1-0.4-0.6-0.6-0.4-0.4-0.3-0.3-0.3-0.3-0.4-0.3-0.80.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312011-09-302010-12-312010-09-30
Value596973647574584821776066-15.6946615536405748-0.515103-17.14745-103.307612645165607247450.0-7.892
Percentage of ProfitLoss99.999.9100.099.899.899.799.899.799.399.899.9100.0101.099.799.799.999.599.699.899.8166.199.899.0100.599.7101.3112.5109.5102.9106.0104.5105.1114.40.0-22.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.713.214.112.713.914.812.511.84.618.313.814.5-3.611.114.913.09.010.714.313.4-0.128.9-4.86.2-12.38.33.96.820.67.88.25.96.50.0-1.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value596973647574584821776066-15.6946615536405748-0.515103-17.14745-103.307612645165607247764064466445461352
Percentage of ProfitLoss99.999.9100.099.899.899.799.899.799.399.899.9100.0101.099.799.799.999.599.699.899.8166.199.899.0100.599.7101.3112.5109.5102.9106.0104.5105.1102.9105.7104.7106.6103.6114.499.798.999.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.713.214.112.713.914.812.511.84.618.313.814.5-3.611.114.913.09.010.714.313.4-0.128.9-4.86.2-12.38.33.96.820.67.88.25.98.85.07.56.18.06.56.12.07.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value5.2923.9814.7054.6624.3753.1023.5872.7873.8232.5293.3642.7641.2944.4615.3432.7813.6863.4126.9982.3433.5612.4696.5942.661156.981114.3755.7071.7042.03.9964.8024.2744.4544.5085.0643.9834.9563.2764.8424.853
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

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-67.57-102.032-71.679-64.223-50.644-78.773-57.594-46.733-31.163-44.505-49.715-235.628-25.67-15.711-51.758-17.456-6.533-14.909-139.563-11.244121321-27.30823-6.187-60.285-68.631-65.374.97-67.972-25.95-20.486-51.773
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-13.4-19.3-12.9-12.4-10.0-14.5-11.5-9.2-6.6-10.7-10.4-55.2-5.8-3.4-12.0-4.2-1.6-3.5-34.6-3.01.51.82.4-3.42.7-0.8-7.1-9.0-8.20.7-9.0-3.8-2.9-8.2

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value681017564506459463144482616174720151321128.3971016111921201816211911141827172021191111201417
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments To Acquire Investments

us-gaap:PaymentsToAcquireInvestments

us-gaap:PaymentsToAcquireInvestments


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.9941.3841.6690.4040.6481.5111.5220.6480.2521.7861.4091.2890.7891.0330.0-8.812
Percentage of PaymentsToAcquireInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value140191955-128.14877-58.721-18.263-22.16755-163.2156.164172-25.256-17.601-16.991-65.2713873-60.652-27.551-21.468-76.312-65.547-104.616-1.118-4.8582.586-0.141.1190.2876.269-0.105-30.865
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax27.73.73.610.7-25.414.3-11.7-3.6-4.713.3-34.11.439.3-5.5-4.1-4.1-15.99.018.2-16.0-3.4-2.8-8.6-8.1-12.1-0.1-0.60.3-0.00.20.00.9-0.0-4.9

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt


Repayments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value2505087530971072771131155036.9516.976
Percentage of RepaymentsOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments Of Dividends Common Stock

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsOfDividendsCommonStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value20201818181816161616151516151010118.9858.9499.3979.519.5146.3746.556101010101111108.948.9979.145
Percentage of PaymentsOfDividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Dividends

us-gaap:Dividends

us-gaap:Dividends


Dividends
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312010-12-312010-09-30
Value2020181818161616151616161111119.0589.019.3999.4299.4526.4136.515101010101111118.9388.9979.150.00.0
Percentage of Dividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

us-gaap:Dividends us-gaap:StatementEquityComponents

us-gaap:Parent


Dividendsus-gaap:
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312010-12-312010-09-30
Value2020181818161616151616161111119.0589.019.3999.4299.4526.4136.515101010101111118.9388.9979.150.00.0
Percentage of Dividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

us-gaap:RetainedEarnings


Dividendsus-gaap:
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value2020181818161616151616161111119.0589.019.3999.4299.4526.4136.515101010101111118.9388.9979.15
Percentage of Dividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value0.0201.9330.0270.0200.00.00.020152620.00.00.00.00.00.00.0211315051180.00.00.050841516146857
Percentage of PaymentsForRepurchaseOfCommonStock0.0100.0100.0100.00.0100.00.00.00.0100.0100.0100.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:EffectiveIncomeTaxRateContinuingOperations


Effective
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value24.724.00.620.30.2340.232-0.0010.2060.2410.2190.0140.0770.2330.2190.1820.3390.3060.306-0.0260.330.3450.2490.010.3261.0470.327-3.1930.2550.3280.2450.0670.30.2980.2660.0480.0270.3430.317-0.0020.3320.3050.277
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

us-gaap:EmployeeStockOption


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value201000.0324000.0571000.0782000.01723000.02698000.02547000.01974000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockAppreciationRightsSARS


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value40000.055000.064000.086000.099000.0119000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber19.917.011.211.05.74.4

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:EmployeeStockOption


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value24.0723.9123.4423.5423.5623.0129.1526.87
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockAppreciationRightsSARS


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value24.0423.3922.9223.0523.1423.04
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice99.997.897.897.998.2100.1

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value664838395842891011049471
Percentage of DeferredTaxLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet

us-gaap:DeferredTaxAssetsNet


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value116107100116229219392301397430389
Percentage of DeferredTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value5.8523.8990.2741.681.6512.2229.5245.734.4873236111436
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value1213131517172224199.3542.20528322.205
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwxt:DefinedBenefitPlanNetPeriodicBenefitCostCreditExcludingServiceCosts

bwxt:DefinedBenefitPlanNetPeriodicBenefitCostCreditExcludingServiceCosts


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-13.4-13.460-9.5-9.5-9.533-5.3-5.3-5.2-60.842-8.8-8.9-4.26.9-6.9-6.9
Percentage of DefinedBenefitPlanNetPeriodicBenefitCostCreditExcludingServiceCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwxt:GovernmentSubsidiesRecognizedToOffsetExpensesCOVID19 us-gaap:StatementGeographical, us-gaap:UnusualRiskOrUncertaintyByNature

bwxt:GovernmentSubsidiesRecognizedToOffsetExpensesCOVID19

country:CA, bwxt:COVID19


Government
Period End2020-09-30
Value16
Percentage of GovernmentSubsidiesRecognizedToOffsetExpensesCOVID19100.0

bwxt:IncreaseDecreaseContractsInProgressAndAdvanceBillingsOnContracts

bwxt:IncreaseDecreaseContractsInProgressAndAdvanceBillingsOnContracts


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value2429-11.83537-8.38135-33.015422543-1.037-18.853-20.25174-38.235-0.906-1.0214.89-12.445-3.12627481.846-63.136.667-2.5572422
Percentage of IncreaseDecreaseContractsInProgressAndAdvanceBillingsOnContracts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwxt:IncreaseDecreaseInPensionPostretirementAndAccruedEmployeeBenefits

bwxt:IncreaseDecreaseInPensionPostretirementAndAccruedEmployeeBenefits


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value2.16242-0.43-3.255-3.76536-12.786-1.375-2.893252.5271278.5148323.3194.89938-16.4758.5161.76127-3.866-4.3522.32843-24.41531
Percentage of IncreaseDecreaseInPensionPostretirementAndAccruedEmployeeBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwxt:IncreaseDecreaseOfDebtIssuanceCostsDuringPeriod

bwxt:IncreaseDecreaseOfDebtIssuanceCostsDuringPeriod


Increase
Period End2020-09-30
Value177000.0
Percentage of IncreaseDecreaseOfDebtIssuanceCostsDuringPeriod100.0

bwxt:NumberOfLargeHeavyComponentsSuppliedToWorldwide

bwxt:NumberOfLargeHeavyComponentsSuppliedToWorldwide


Number
Period End2021-06-302021-03-31
Value01300.0
Percentage of NumberOfLargeHeavyComponentsSuppliedToWorldwide0.0100.0

bwxt:OtherIncomeExpenseNet

bwxt:OtherIncomeExpenseNet


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value15166.097109.457.9173.8044.676.6047.521-63.47240157.91-0.3620.348-0.170.5530.6280.2280.8224-2.076-1.6660.12-1.404-5.06218
Percentage of OtherIncomeExpenseNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwxt:OtherIncomeExpenseNet us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCredit


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-0.738-0.737-0.795-0.829-0.776-0.777-0.648-0.649-0.648-0.647-0.479-0.438-0.488-0.505-0.44-0.428-0.446-0.446
Percentage of OtherIncomeExpenseNet-4.8-4.5-13.0-7.8-8.2-9.8-17.0-13.9-9.8-8.60.8-1.1-3.2-6.4121.5-123.0262.4-80.7

bwxt:RecognitionOfGainsLossesForPensionAndPostretirementPlans

bwxt:RecognitionOfGainsLossesForPensionAndPostretirementPlans


Recognition
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value-0.738-0.737-7.166-0.829-0.776-0.777-4.278-0.649-0.648-0.647-68.25334-0.488-0.505-11.503-0.428-0.446-0.446-21.718-0.409-0.407-0.406-50.518-0.408-2.669-0.51-231.184-11.763
Percentage of RecognitionOfGainsLossesForPensionAndPostretirementPlans100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CapitalExpendituresIncurredButNotYetPaid

us-gaap:CapitalExpendituresIncurredButNotYetPaid


Capital
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value0.47925303.3781.80215216.995-0.04511164.6824.044.7350.7743.7940.873.0163.0960.6482.2182.7624.58-1.021-0.163.3424.018-0.737-0.9164.8542.1012.595-0.594.0352.4960.646-3.5648.324
Percentage of CapitalExpendituresIncurredButNotYetPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStockDividendsPerShareDeclared

us-gaap:CommonStockDividendsPerShareDeclared


Common
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value0.210.210.190.190.190.170.170.170.160.160.160.160.110.110.110.090.090.090.090.090.060.060.10.10.10.10.10.10.10.080.080.08
Percentage of CommonStockDividendsPerShareDeclared100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInEstimateOfTransactionPrice

us-gaap:ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInEstimateOfTransactionPrice


Contract
Period End2021-06-302021-03-312020-12-31
Value314917
Percentage of ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInEstimateOfTransactionPrice100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueChangeInEstimateOfTransactionPrice

us-gaap:ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueChangeInEstimateOfTransactionPrice


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3.26.5167.8119.62326164.8358.99.25.3
Percentage of ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueChangeInEstimateOfTransactionPrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:ContractWithCustomerLiabilityRevenueRecognized


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value23303.45.712304.87.016334.64.31430
Percentage of ContractWithCustomerLiabilityRevenueRecognized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanActuarialGainLoss

us-gaap:DefinedBenefitPlanActuarialGainLoss


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312015-06-302014-12-31
Value-6.4-3.6-67.8-11.1-21.321-2.252
Percentage of DefinedBenefitPlanActuarialGainLoss100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-44000.0-45000.0-48000.0-48000.0-49000.0-48000.0-78000.0-78000.0-77000.0-78000.0-77000.0-127000.0-62000.0-45000.0-78000.0-79000.0-78000.0-79000.0-75000.0-76000.0-75000.0
Percentage of DefinedBenefitPlanAmortizationOfPriorServiceCostCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value782000.0782000.0843000.0877000.0825000.0825000.0726000.0727000.0725000.0725000.0556000.0565000.0550000.0550000.0518000.0506000.0525000.0525000.0483000.0485000.0482000.0
Percentage of DefinedBenefitPlanAmortizationOfPriorServiceCostCredit-1777.3-1737.8-1756.2-1827.1-1683.7-1718.8-930.8-932.1-941.6-929.5-722.1-444.9-887.1-1222.2-664.1-640.5-673.1-664.6-644.0-638.2-642.7

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value0.7150.7160.6720.6750.6720.6720.6320.6270.6280.6270.9590.5480.3990.6340.5960.5960.5960.5950.5770.5770.576
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value202019191919171717171819212120212020202020
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets2859.92851.12880.22869.32858.82881.52763.42789.52773.62780.91927.93516.85401.83410.93516.43526.73490.43502.03584.23576.13603.8

us-gaap:DefinedBenefitPlanInterestCost us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanInterestCost

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value0.2860.2820.4050.3930.4040.410.4980.5860.5850.5850.7170.5040.3510.5490.5470.5570.5380.540.5560.5510.553
Percentage of DefinedBenefitPlanInterestCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value6.7816.7549.3179.3599.2219.302111111111111121213131313131313
Percentage of DefinedBenefitPlanInterestCost2371.02395.02300.52381.42282.42268.82326.31973.91976.61981.51572.02296.63506.32248.32489.62464.52508.42502.42460.82490.72489.2

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-0.277-0.289-0.611-0.177-0.156-0.144-5.8240.0260.0240.025-4.252-0.0390.0520.0352.758-0.0020.0170.02-6.1650.0030.069
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-9.913-9.9210.304-6.75-6.386-6.4186.483-3.282-2.661-2.66367-39.882-6.291-6.3193.514-5.065-4.638-4.64822-4.632-4.661
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost3578.73432.9-49.83813.64093.64456.9-111.3-12623.1-11087.5-10652.0-1589.9102261.5-12098.1-18054.3127.4253250.0-27282.4-23240.0-371.1-154400.0-6755.1

us-gaap:DefinedBenefitPlanServiceCost

us-gaap:DefinedBenefitPlanServiceCost


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value3.23.12.82.52.93.02.42.12.62.62.52.52.62.62.21.82.32.3
Percentage of DefinedBenefitPlanServiceCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanServiceCost us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value0.1960.190.1620.1530.1610.1660.1110.1450.1440.1450.1610.1320.1620.1650.1440.1160.1530.1540.1520.1050.167
Percentage of DefinedBenefitPlanServiceCost6.16.15.86.15.65.54.66.95.55.66.45.36.26.36.56.46.76.70.00.00.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value2.9722.9572.672.3822.7792.8192.2841.9142.4692.4562.3952.382.4052.4132.0141.7212.1452.1511.8651.7931.85
Percentage of DefinedBenefitPlanServiceCost92.995.495.495.395.894.095.291.195.094.595.895.292.592.891.595.693.393.50.00.00.0

us-gaap:DerivativeInstrumentsGainLossReclassificationFromAccumulatedOCIToIncomeEstimatedNetAmountToBeTransferred

us-gaap:DerivativeInstrumentsGainLossReclassificationFromAccumulatedOCIToIncomeEstimatedNetAmountToBeTransferred


Derivative
Period End2021-06-302021-03-312020-12-31
Value-200000.01100000.0-600000.0
Percentage of DerivativeInstrumentsGainLossReclassificationFromAccumulatedOCIToIncomeEstimatedNetAmountToBeTransferred100.0100.0100.0

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Effect
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value606000.0-542000.01028000.0-609000.0729000.0-1419000.0339000.0-454000.0343000.0104000.0-1515000.02196000.0-8424000.0-2236000.0
Percentage of EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount

us-gaap:EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount


Effective
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value0-200000.00-200000.0-700000.0-200000.0-100000.0-1700000.0-300000.0
Percentage of EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount0.0100.00.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value800000.0700000.0600000.0900000.0800000.0400000.0600000.0500000.0800000.0600000.00500000.0300000.0900000.0-700000.01400000.01400000.01600000.02600000.01100000.01300000.01000000.0700000.01000000.06000000.01600000.0-1900000.01600000.02300000.0700000.0-100000.01800000.02000000.01700000.01700000.01840000.01481000.01811000.01200000.01765000.01802000.0
Percentage of EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments

us-gaap:GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments


Gain
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value-4700000.0-3600000.0-700000.0-3600000.05200000.0-200000.0-100000.01600000.0
Percentage of GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnSalesOfAssetsAndAssetImpairmentCharges

us-gaap:GainLossOnSalesOfAssetsAndAssetImpairmentCharges


Gain
Period End2021-06-302021-03-312020-09-302020-06-302019-09-302019-06-30
Value29000.08000.0-25000.0-299000.06000.0-151000.0
Percentage of GainLossOnSalesOfAssetsAndAssetImpairmentCharges100.0100.0100.0100.0100.0100.0

us-gaap:IncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromEquityMethodInvestments


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value7.2638.3167.9058.2714.9136.0636.5067.8746.8627.6827.6459.3236.2257.152.783.633.3273.8752.825.0084.7083.5332.3685.8943.282-0.2195.9967.308131516181814181416172222181525161714
Percentage of IncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions

us-gaap:IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value3.462.414-2.0363.256-1.0021.929-0.6732.3283.3542.96-0.3655.0871.0852.299-1.7890.2560.792-1.779-5.0662.673.00.413-2.1681.527-0.781-0.525-1.843-25.4373.8234.694-29.956-0.405117.585-11.348.698106.893-10.17414123.832-6.65510
Percentage of IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsAndOtherReceivables

us-gaap:IncreaseDecreaseInAccountsAndOtherReceivables


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value2.946-96.44955400.3412.092-12.533.761-1.024-5.812-58.809-14.24227-16.9432517-40.99941-32.94927-25.9253.263-40.36747-29.554-17.336-12.145524-17.528-64.3897.2342313-9.794191428-37.15-8.2444131-52.428-58.902
Percentage of IncreaseDecreaseInAccountsAndOtherReceivables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInContractWithCustomerLiability

us-gaap:IncreaseDecreaseInContractWithCustomerLiability


Increase
Period End2021-06-302021-03-31
Value6.115
Percentage of IncreaseDecreaseInContractWithCustomerLiability100.0100.0

us-gaap:IncreaseDecreaseInDepositOtherAssets

us-gaap:IncreaseDecreaseInDepositOtherAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-30.78326-16.91725-15.68415-23.8189.739-11.34713-44.6235.8253.44310
Percentage of IncreaseDecreaseInDepositOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInIncomeTaxes

us-gaap:IncreaseDecreaseInIncomeTaxes


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value-16.25817-3.933-34.00818201.2971.054-13.7437.55923-34.209-6.8-5.502-23.9642021-2.607-5.2953.59418-3.7731018-25.16-10.79310-3.914-1.124-6.766-5.08-5.3510.243.827-17.283-20.7292221-18.67141521
Percentage of IncreaseDecreaseInIncomeTaxes100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherAccruedLiabilities

us-gaap:IncreaseDecreaseInOtherAccruedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-1.341.751-16.5072010-8.0730.9110.146-4.444-10.7488.2522.3710.6090.3647.1265.589-9.515-29.8111-1.629-17.39625-10.95-3.2471.3077.3575.351102.705-0.031-24.911-13.129-7.96717-11.529-7.62-15.7824.3781.659-28.07-5.238.535-9.7950.314
Percentage of IncreaseDecreaseInOtherAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements


Incremental
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value0.1742570.2551350.0134180.2476930.1759420.3440210.0075540.3905720.3198930.566245-0.0016980.9997350.8901570.9861-0.0194010.9315780.9847211.2460580.112351.0795961.2914251.398778-681.10812312220.00.370578-0.0946090.3382983500.4466280.0431370.818005
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeInterest

us-gaap:InvestmentIncomeInterest


Investment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value0.0770.1320.0650.1610.0610.2310.1580.2320.1370.4150.1391.1210.4410.7780.6550.4020.2110.1370.1180.1280.2670.1380.069300.170.1740.1520.2670.190.4190.3080.480.3230.3320.3370.4170.5040.2330.3310.2470.3050.4590.2950.1820.261
Percentage of InvestmentIncomeInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value-158000.0-157000.0-170000.0-141000.0-167000.0-167000.0-141000.0-130000.0-155000.0-136000.0-124000.0-78000.0-25000.0-183000.0-159000.0-146000.0-157000.0-156000.0-141000.0-142000.0-142000.0-141000.0-84000.0-139000.0-179000.0-179000.0-254000.0-898000.0-198000.0-197000.0-253000.0-264000.0-245000.0-273000.0-304000.0-332000.0-262000.0
Percentage of OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax

us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value580000.0580000.0688000.0609000.0610000.0519000.0493000.0511000.0360000.0463000.0322000.0282000.0289000.0290000.0267000.0265000.0265000.0269000.0329000.0331000.02505000.0397000.0397000.0492000.0490000.0465000.0528000.0602000.0642000.0518000.0
Percentage of OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax


Other
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value89000.0-81000.0154000.0-600000.0-54000.027000.024000.0-51000.0-9000.022000.0-66000.0232000.0-236000.0-1330000.0-108000.02328000.0399000.0-522000.01476000.0571000.0-644000.0-565000.0424000.0-43000.0-9000.053000.024000.055000.071000.026000.0-619000.0
Percentage of OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value89000.0-81000.0154000.0-600000.0-54000.027000.024000.0-51000.0-9000.022000.0-66000.0232000.0-236000.0-1330000.0-108000.02328000.0399000.0-522000.01476000.0571000.0-644000.0-565000.0424000.0-43000.0-9000.053000.024000.055000.071000.026000.0-619000.0
Percentage of OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Parent


Other
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value89000.0-81000.0154000.0-600000.0-54000.027000.024000.0-51000.0-9000.022000.0-66000.0232000.0-236000.0-1330000.0-108000.02328000.0399000.0-522000.01476000.0571000.0-644000.0-565000.0424000.0-43000.0-9000.053000.024000.055000.071000.026000.0-619000.0
Percentage of OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value40000.0-412000.0-14000.032000.0-404000.0313000.0-263000.0-248000.0-634000.0-441000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value15000.0-139000.0-4000.012000.0-141000.0109000.027000.0-79000.0-226000.0-164000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-163000.0166000.0586000.0232000.089000.0-420000.0-898000.072000.0-203000.0141000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-55000.056000.0200000.079000.032000.0-138000.0-315000.026000.0-70000.049000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-580000.0-580000.0-688000.0-609000.0-610000.0-519000.0-493000.0-511000.08089000.0-360000.0-463000.0-322000.0706000.0-282000.0-289000.0-290000.0858000.0-267000.0-265000.0-265000.0566000.0-269000.0-329000.0-331000.0458000.0-2505000.0-397000.0-397000.01436000.0-490000.0-465000.0-528000.0
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-580000.0-580000.0-688000.0-609000.0-610000.0-519000.0-493000.0-511000.08089000.0-360000.0-463000.0-322000.0706000.0-282000.0-289000.0-290000.0858000.0-267000.0-265000.0-265000.0566000.0-269000.0-329000.0-331000.0458000.0-2505000.0-397000.0-397000.01436000.0-490000.0-465000.0-528000.0
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Parent


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-580000.0-580000.0-688000.0-609000.0-610000.0-519000.0-493000.0-511000.08089000.0-360000.0-463000.0-322000.0706000.0-282000.0-289000.0-290000.0858000.0-267000.0-265000.0-265000.0566000.0-269000.0-329000.0-331000.0458000.0-2505000.0-397000.0-397000.01436000.0-490000.0-465000.0-528000.0
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value089000.0336000.0-81000.0154000.0-600000.0421000.0-54000.027000.024000.0330000.0-388000.022000.0-66000.0601000.0-227000.0-1210000.0-94000.02404000.0407000.0-511000.01488000.0671000.0-638000.0-441000.0415000.028000.05000.057000.046000.099000.075000.033000.095000.055000.0172000.0-24000.0228000.0178000.0-411000.06000.0153000.0180000.0286000.041000.0
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value-84000.024000.057000.01000.002000.0-7000.003000.07000.0276000.0-270000.000200000.052000.060000.070000.0-682000.0219000.0-278000.0803000.0362000.0-344000.0-239000.0-224000.0-135000.03000.0-32000.0-25000.0-55000.0-42000.037000.0-44000.0000
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:OtherOperatingActivitiesCashFlowStatement

us-gaap:OtherOperatingActivitiesCashFlowStatement


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value380000.01168000.0-1035000.01742000.0283000.0-130000.0686000.0-1663000.0
Percentage of OtherOperatingActivitiesCashFlowStatement100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsForProceedsFromOtherInvestingActivities


Payments
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-150000.0-32000.0-3394000.0-3000.00-191000.0-17000.00-510000.0-3746000.0-997000.00-715000.00715000.0-691000.00000
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.00.0100.00.0100.0100.00.00.00.00.0

us-gaap:PaymentsOfDebtIssuanceCosts

us-gaap:PaymentsOfDebtIssuanceCosts


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302016-12-312016-09-302015-12-312015-09-302014-12-312014-09-302012-12-312012-09-302011-12-312011-09-302010-12-312010-09-30
Value15000.0478000.04970000.01340000.0000001246000.00019000.0663000.0-36000.0-94000.083000.0461000.052000.0103000.000129000.00
Percentage of PaymentsOfDebtIssuanceCosts100.0100.0100.0100.00.00.00.00.00.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.00.0

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value58000.04687000.00205000.046000.04998000.0248000.0288000.080000.08574000.01394000.0692000.053000.04657000.0660000.0344000.02072000.04973000.0212000.0404000.04016000.04622000.0
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireBusinessesAndInterestInAffiliates

us-gaap:PaymentsToAcquireBusinessesAndInterestInAffiliates


Payments
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value-0.2690.0160.00.00.0
Percentage of PaymentsToAcquireBusinessesAndInterestInAffiliates100.00.0100.00.00.00.0

us-gaap:ProceedsFromIssuanceOfDebt

us-gaap:ProceedsFromIssuanceOfDebt


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312014-09-30
Value420205381624292141121042702122572017000.0350.00.0732982410.00.00.0143346247
Percentage of ProceedsFromIssuanceOfDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.00.0100.0100.0100.00.00.00.0100.0100.0100.0

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value-5299000.0-3680000.0-9569000.0-900000.0-3931000.05068000.053000.032000.0-128000.0943000.0-156000.0-163000.0-126000.0-226000.0-135000.0-149000.0-120000.0-146000.0-129000.0-125000.0-114000.0-143000.0-132000.0-100000.0-131000.0-101000.0-103000.0207000.0-297000.0-112000.0-85000.0-88000.0-224000.0-102000.0-119000.0-111000.0-187000.0-97000.0-96000.02000.0
Percentage of ProceedsFromPaymentsForOtherFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromRepaymentsOfBankOverdrafts

us-gaap:ProceedsFromRepaymentsOfBankOverdrafts


Proceeds
Period End2021-06-302021-03-31
Value0-88694000.0
Percentage of ProceedsFromRepaymentsOfBankOverdrafts0.0100.0

us-gaap:ProceedsFromSaleMaturityAndCollectionsOfInvestments

us-gaap:ProceedsFromSaleMaturityAndCollectionsOfInvestments


Proceeds
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value1.5121.2520.4040.6253.680.6520.2541.80.4230.0072.948-7.58
Percentage of ProceedsFromSaleMaturityAndCollectionsOfInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ProceedsFromStockOptionsExercised


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value0.3391.6720.8230.1990.5361.2541.3131.7330.5770.8230.0620.4930.4932.5251.0981.4114.9439.665-0.4523.8187.9696.9883.6730.4171.4891.744.036-2.8951.2722.1910.5191.8681.0750.8130.4521.050.0951.3290.1310.280.9473.1050.0
Percentage of ProceedsFromStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:RedemptionPremium us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

us-gaap:RedemptionPremium

bwxt:SeniorNotesDue2026, us-gaap:SeniorNotes, us-gaap:SubsequentEvent


Redemption
Period End2021-07-15
Value10
Percentage of RedemptionPremium100.0

us-gaap:StockGrantedDuringPeriodValueSharebasedCompensation

us-gaap:StockGrantedDuringPeriodValueSharebasedCompensation


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value5.2923.9814.6624.3753.1022.7873.8232.5292.7641.2944.4612.7813.6863.4122.3434.1162.4691.834184.214-2.0464.3755.7071.7042.03.9964.8024.2744.4544.5075.0653.9834.9563.2764.8414.8544.2216.07
Percentage of StockGrantedDuringPeriodValueSharebasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockGrantedDuringPeriodValueSharebasedCompensation us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value5.2923.9784.6614.3753.12.7873.8232.5252.7641.2944.4592.7813.6863.4092.3434.1162.4651.833184.213-2.0464.3755.7061.72.03.9964.8024.2724.4544.5075.0653.984.9553.2764.22
Percentage of StockGrantedDuringPeriodValueSharebasedCompensation100.099.9100.0100.099.9100.0100.099.8100.0100.0100.0100.0100.099.9100.0100.099.899.9100.0100.0100.0100.0100.099.8100.0100.0100.0100.0100.0100.0100.099.9100.0100.0100.0

us-gaap:CommonStock


Stock
Period End2021-03-312020-09-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value0.0030.0010.0020.00.00.0040.00.00.0020.00.00.0030.00.00.0040.0010.0050.0010.00.00.0010.0040.00.00.00.0020.00.00.00.0030.0010.00.00.0050.001
Percentage of StockGrantedDuringPeriodValueSharebasedCompensation0.10.00.10.00.00.20.00.00.00.00.00.10.00.00.20.10.00.0-0.00.00.00.20.00.00.00.00.00.00.00.10.00.00.00.10.0

us-gaap:Parent


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312011-09-30
Value5.2923.9814.6624.3753.1022.7873.8232.5292.7641.2944.4612.7813.6863.4122.3434.1162.4691.834184.214-2.0464.3755.7071.7042.03.9964.8024.2743.276
Percentage of StockGrantedDuringPeriodValueSharebasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value0.3391.5170.1990.5371.3321.9850.7571.2760.0620.6180.5173.8071.0981.9668.8529.793-1.1514.4468.8647.8283.6050.9031.5031.7040.8230.4071.0642.4561.1271.9291.0650.8090.5991.0550.1252.7350.0450.0931.2727.1362.924
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value0.3391.5170.1990.5371.3311.9840.7571.2750.0620.6170.5173.8061.0971.9658.8489.789-1.1514.4448.867.8253.6030.9021.5031.7030.8220.4071.0642.4551.1281.9281.0640.8080.5981.0540.1252.7340.0450.0921.2717.1342.923
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.0100.0100.0100.099.999.9100.099.9100.099.8100.0100.099.999.9100.0100.0100.0100.0100.0100.099.999.9100.099.999.9100.0100.0100.0100.199.999.999.999.899.9100.0100.0100.098.999.9100.0100.0

us-gaap:Parent


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312011-09-30
Value0.3391.5170.1990.5371.3321.9850.7571.2760.0620.6180.5173.8071.0981.9668.8529.793-1.1514.4468.8647.8283.6050.9031.5031.7040.8230.4071.0642.4561.1271.9291.0650.8090.093
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStockValueAcquiredCostMethod

us-gaap:TreasuryStockValueAcquiredCostMethod


Treasury
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value0.058240.2320.047250.540.2629153630.0775.940.660.8995.9815.1930.213212365551200.1161.5960.16950842016146859965.839-5.7152.830.6921.1030.3355.5320.208
Percentage of TreasuryStockValueAcquiredCostMethod100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStockValueAcquiredCostMethod us-gaap:StatementEquityComponents

us-gaap:Parent


Treasury
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312011-09-30
Value0.058240.2320.047250.540.2629153630.0775.940.660.8995.9815.1930.213212365551200.1161.5960.169508420161468591.103
Percentage of TreasuryStockValueAcquiredCostMethod100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStock


Treasury
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value0.058240.2320.047250.540.2629153630.0775.940.660.8995.981450.213172365551200.1161.5960.16950842016146859965.839-5.7152.830.6921.1030.3355.5320.208
Percentage of TreasuryStockValueAcquiredCostMethod100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0868.5100.081.1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:WriteOffOfDeferredDebtIssuanceCost us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

us-gaap:WriteOffOfDeferredDebtIssuanceCost

bwxt:SeniorNotesDue2026, us-gaap:SeniorNotes, us-gaap:SubsequentEvent


Write
Period End2021-07-15
Value4200000.0
Percentage of WriteOffOfDeferredDebtIssuanceCost100.0

bwxt:AccountsReceivableRetainage

bwxt:AccountsReceivableRetainage


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value508155724646
Percentage of AccountsReceivableRetainage100.0100.0100.0100.0100.0100.0

bwxt:AssetsExcludingAssetsRelatedToDiscontinuedOperations

bwxt:AssetsExcludingAssetsRelatedToDiscontinuedOperations


Assets
Period End2020-12-312019-12-312018-12-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-31
Value2293190816551712172316241617157913821481
Percentage of AssetsExcludingAssetsRelatedToDiscontinuedOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwxt:AssetsExcludingAssetsRelatedToDiscontinuedOperations us-gaap:ConsolidationItems

srt:ConsolidationEliminations


Assets
Period End2020-12-312019-12-312018-12-31
Value3.6383.7515.557
Percentage of AssetsExcludingAssetsRelatedToDiscontinuedOperations0.20.20.3

us-gaap:CorporateNonSegment


Assets
Period End2020-12-312019-12-312018-12-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-31
Value110159107286331313266236310361
Percentage of AssetsExcludingAssetsRelatedToDiscontinuedOperations4.88.46.516.819.219.316.515.022.524.4

us-gaap:OperatingSegments


Assets
Period End2020-12-312019-12-312018-12-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-31
Value2183174815471425139213111351134310711119
Percentage of AssetsExcludingAssetsRelatedToDiscontinuedOperations95.291.693.583.280.880.783.585.077.575.6

bwxt:AssetsExcludingAssetsRelatedToDiscontinuedOperations us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, bwxt:NuclearOperationsGroupSegment


Assets
Period End2020-12-312019-12-312018-12-31
Value1184986878
Percentage of AssetsExcludingAssetsRelatedToDiscontinuedOperations51.751.753.1

us-gaap:OperatingSegments, bwxt:NuclearPowerGroup


Assets
Period End2020-12-312019-12-312018-12-312017-12-31
Value828580482313
Percentage of AssetsExcludingAssetsRelatedToDiscontinuedOperations36.130.429.218.3

us-gaap:OperatingSegments, bwxt:NuclearServicesGroup


Assets
Period End2020-12-312019-12-312018-12-312017-12-31
Value166177180161
Percentage of AssetsExcludingAssetsRelatedToDiscontinuedOperations7.29.310.99.5

bwxt:AvailableForSaleDebtSecuritiesAndEquitySecuritiesFVNI us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

bwxt:AvailableForSaleDebtSecuritiesAndEquitySecuritiesFVNI

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Available
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value4.64.5434.0523.6483.899
Percentage of AvailableForSaleDebtSecuritiesAndEquitySecuritiesFVNI100.0100.0100.0100.0100.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Available
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value7.9648.0968.2117.5829.564
Percentage of AvailableForSaleDebtSecuritiesAndEquitySecuritiesFVNI173.1178.2202.6207.8245.3

bwxt:AvailableForSaleDebtSecuritiesAndEquitySecuritiesFVNI us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Available
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value1313131113
Percentage of AvailableForSaleDebtSecuritiesAndEquitySecuritiesFVNI290.5295.8322.4307.8345.3

bwxt:BillingsInExcessOfCost1

bwxt:BillingsInExcessOfCost1


Billings
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value10599836775
Percentage of BillingsInExcessOfCost1100.0100.0100.0100.0100.0

bwxt:BondsIssuedAndOutstanding

bwxt:BondsIssuedAndOutstanding


Bonds
Period End2020-12-31
Value73
Percentage of BondsIssuedAndOutstanding100.0

bwxt:BusinessCombinationContingentConsiderationRecognizedInPurchasePrice us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments

bwxt:BusinessCombinationContingentConsiderationRecognizedInPurchasePrice

bwxt:LakerEnergyProductsLtd, bwxt:NuclearPowerGroup


Business
Period End2020-12-31
Value2500000.0
Percentage of BusinessCombinationContingentConsiderationRecognizedInPurchasePrice100.0

bwxt:CostInExcessOfBillingsCurrent1

bwxt:CostInExcessOfBillingsCurrent1


Cost
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value530497449430376
Percentage of CostInExcessOfBillingsCurrent1100.0100.0100.0100.0100.0

bwxt:DebtSecuritiesAvailableForSaleAndEquitySecuritiesFVNI

bwxt:DebtSecuritiesAvailableForSaleAndEquitySecuritiesFVNI


Debt
Period End2020-12-312019-12-312018-12-31
Value131310
Percentage of DebtSecuritiesAvailableForSaleAndEquitySecuritiesFVNI100.0100.0100.0

bwxt:DebtSecuritiesAvailableForSaleAndEquitySecuritiesFVNIAccumulatedGrossUnrealizedGainBeforeTax

bwxt:DebtSecuritiesAvailableForSaleAndEquitySecuritiesFVNIAccumulatedGrossUnrealizedGainBeforeTax


Debt
Period End2020-12-312019-12-312018-12-31
Value2320000.02837000.0266000.0
Percentage of DebtSecuritiesAvailableForSaleAndEquitySecuritiesFVNIAccumulatedGrossUnrealizedGainBeforeTax100.0100.0100.0

bwxt:DebtSecuritiesAvailableForSaleAndEquitySecuritiesFVNIAmortizedCost

bwxt:DebtSecuritiesAvailableForSaleAndEquitySecuritiesFVNIAmortizedCost


Debt
Period End2020-12-312019-12-312018-12-31
Value101010
Percentage of DebtSecuritiesAvailableForSaleAndEquitySecuritiesFVNIAmortizedCost100.0100.0100.0

bwxt:DebtSecuritiesTradingAndEquitySecuritiesAccumulatedGrossUnrealizedLossBeforeTax

bwxt:DebtSecuritiesTradingAndEquitySecuritiesAccumulatedGrossUnrealizedLossBeforeTax


Debt
Period End2020-12-312019-12-312018-12-31
Value63000.053000.0104000.0
Percentage of DebtSecuritiesTradingAndEquitySecuritiesAccumulatedGrossUnrealizedLossBeforeTax100.0100.0100.0

bwxt:DeferredTaxAssetsEnvironmentalAndProductsLiabilities

bwxt:DeferredTaxAssetsEnvironmentalAndProductsLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value20202417342022
Percentage of DeferredTaxAssetsEnvironmentalAndProductsLiabilities100.0100.0100.0100.0100.0100.0100.0

bwxt:DeferredTaxAssetsLeaseLiabilities

bwxt:DeferredTaxAssetsLeaseLiabilities


Deferred
Period End2020-12-312019-12-31
Value2155000.01856000.0
Percentage of DeferredTaxAssetsLeaseLiabilities100.0100.0

bwxt:DeferredTaxAssetsLongTermContracts

bwxt:DeferredTaxAssetsLongTermContracts


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value15106.0464.05710157.477
Percentage of DeferredTaxAssetsLongTermContracts100.0100.0100.0100.0100.0100.0100.0

bwxt:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedPayrollTaxes

bwxt:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedPayrollTaxes


Deferred
Period End2020-12-31
Value4828000.0
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedPayrollTaxes100.0

bwxt:DeferredTaxLiabilitiesRightOfUseAssets

bwxt:DeferredTaxLiabilitiesRightOfUseAssets


Deferred
Period End2020-12-312019-12-31
Value1010
Percentage of DeferredTaxLiabilitiesRightOfUseAssets100.0100.0

bwxt:DefinedBenefitPlanAlternativeInvestmentsFairValueofPlanAssets

bwxt:DefinedBenefitPlanAlternativeInvestmentsFairValueofPlanAssets


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value715541460567558557
Percentage of DefinedBenefitPlanAlternativeInvestmentsFairValueofPlanAssets100.0100.0100.0100.0100.0100.0

bwxt:DefinedBenefitPlanAlternativeInvestmentsFairValueofPlanAssets us-gaap:DefinedBenefitPlanByPlanAssetCategories

bwxt:CashAndAccruedItems


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value330.00.00.00.00.0
Percentage of DefinedBenefitPlanAlternativeInvestmentsFairValueofPlanAssets4.70.00.00.00.00.0

bwxt:CommingledAndMutualFunds


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value265276272416414403
Percentage of DefinedBenefitPlanAlternativeInvestmentsFairValueofPlanAssets37.151.159.173.474.272.4

bwxt:OtherAssetCategory


Defined
Period End2020-12-312019-12-31
Value12647
Percentage of DefinedBenefitPlanAlternativeInvestmentsFairValueofPlanAssets17.78.8

bwxt:PartnershipsWithSecurityHoldings


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value495262798293
Percentage of DefinedBenefitPlanAlternativeInvestmentsFairValueofPlanAssets6.99.813.514.114.816.8

us-gaap:FixedIncomeFunds


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value1629865706056
Percentage of DefinedBenefitPlanAlternativeInvestmentsFairValueofPlanAssets22.718.214.212.310.810.1

us-gaap:RealEstate


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value7765611.41.7023.645
Percentage of DefinedBenefitPlanAlternativeInvestmentsFairValueofPlanAssets10.812.213.30.20.30.7

bwxt:DefinedBenefitPlanPlansWithAssetsInExcessOfAccumulatedBenefitObligationAggregateAccumulatedBenefitObligation us-gaap:RetirementPlanType

bwxt:DefinedBenefitPlanPlansWithAssetsInExcessOfAccumulatedBenefitObligationAggregateAccumulatedBenefitObligation

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value3636410.00.0
Percentage of DefinedBenefitPlanPlansWithAssetsInExcessOfAccumulatedBenefitObligationAggregateAccumulatedBenefitObligation100.0100.0100.00.00.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value149141127150132
Percentage of DefinedBenefitPlanPlansWithAssetsInExcessOfAccumulatedBenefitObligationAggregateAccumulatedBenefitObligation409.0387.0303.50.00.0

bwxt:DefinedBenefitPlanPlansWithAssetsInExcessOfAccumulatedBenefitObligationAggregateFairValueOfPlanAssets us-gaap:RetirementPlanType

bwxt:DefinedBenefitPlanPlansWithAssetsInExcessOfAccumulatedBenefitObligationAggregateFairValueOfPlanAssets

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value5248430.00.0
Percentage of DefinedBenefitPlanPlansWithAssetsInExcessOfAccumulatedBenefitObligationAggregateFairValueOfPlanAssets100.0100.0100.00.00.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value163158141163138
Percentage of DefinedBenefitPlanPlansWithAssetsInExcessOfAccumulatedBenefitObligationAggregateFairValueOfPlanAssets314.7328.0322.00.00.0

bwxt:DefinedBenefitPlanPlansWithAssetsInExcessOfAccumulatedBenefitObligationAggregateProjectedBenefitObligation us-gaap:RetirementPlanType

bwxt:DefinedBenefitPlanPlansWithAssetsInExcessOfAccumulatedBenefitObligationAggregateProjectedBenefitObligation

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value149141127150132
Percentage of DefinedBenefitPlanPlansWithAssetsInExcessOfAccumulatedBenefitObligationAggregateProjectedBenefitObligation100.0100.0100.0100.0100.0

bwxt:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearSix

bwxt:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearSix


Lessee
Period End2020-12-31
Value2828000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearSix100.0

bwxt:LongTermDebtGrossExcludingCurrentMaturities

bwxt:LongTermDebtGrossExcludingCurrentMaturities


Long
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value800875915840920817763
Percentage of LongTermDebtGrossExcludingCurrentMaturities100.0100.0100.0100.0100.0100.0100.0

bwxt:LongTermInvestmentsExcludingInvestmentsInUnconsolidatedAffiliates

bwxt:LongTermInvestmentsExcludingInvestmentsInUnconsolidatedAffiliates


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value109.6129.3567.5317.2366.2917.629.3339.0898.5987.3828.6048.9328.9099.3018.9179.133109.0137.3346.7458.2966.076.37.3077.606
Percentage of LongTermInvestmentsExcludingInvestmentsInUnconsolidatedAffiliates100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwxt:RestrictedCashAndCashEquivalentsIncludingPortionFromOtherAssets

bwxt:RestrictedCashAndCashEquivalentsIncludingPortionFromOtherAssets


Restricted
Period End2020-12-31
Value5700000.0
Percentage of RestrictedCashAndCashEquivalentsIncludingPortionFromOtherAssets100.0

us-gaap:AccrualForEnvironmentalLossContingencies us-gaap:LossContingenciesByNatureOfContingency

us-gaap:AccrualForEnvironmentalLossContingencies

bwxt:EnvironmentalMatters


Accrual
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value919010493866359
Percentage of AccrualForEnvironmentalLossContingencies100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccruedEmployeeBenefitsCurrentAndNoncurrent us-gaap:RetirementPlanType

us-gaap:AccruedEmployeeBenefitsCurrentAndNoncurrent

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Accrued
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value1.3891.3131.241.2691.222
Percentage of AccruedEmployeeBenefitsCurrentAndNoncurrent100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Accrued
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value3.0823.2183.1913.3033.171
Percentage of AccruedEmployeeBenefitsCurrentAndNoncurrent221.9245.1257.3260.3259.5

us-gaap:AccruedEnvironmentalLossContingenciesCurrent us-gaap:LossContingenciesByNatureOfContingency

us-gaap:AccruedEnvironmentalLossContingenciesCurrent

bwxt:EnvironmentalMatters


Accrued
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value7.11018134.63.23.6
Percentage of AccruedEnvironmentalLossContingenciesCurrent100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccruedEnvironmentalLossContingenciesNoncurrent

us-gaap:AccruedEnvironmentalLossContingenciesNoncurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value928584858380809089878689808079868483816261606059585656555554534847464645454444454540
Percentage of AccruedEnvironmentalLossContingenciesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivable

us-gaap:AllowanceForDoubtfulAccountsReceivable


Allowance
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value200000.0200000.0100000.0100000.000
Percentage of AllowanceForDoubtfulAccountsReceivable100.0100.0100.0100.00.00.0

us-gaap:AssetRetirementObligation

us-gaap:AssetRetirementObligation


Asset
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value78779078715047444235322925
Percentage of AssetRetirementObligation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetRetirementObligationCurrent

us-gaap:AssetRetirementObligationCurrent


Asset
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value2.85.7138.10.0
Percentage of AssetRetirementObligationCurrent100.0100.0100.0100.00.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax us-gaap:FinancialInstrument

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax

us-gaap:CorporateBondSecurities


Available
Period End2020-12-312019-12-312018-12-31
Value259000.0380000.00
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax100.0100.00.0

us-gaap:USGovernmentAgenciesDebtSecurities


Available
Period End2020-12-312019-12-312018-12-31
Value1000.05000.011000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax0.41.30.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax us-gaap:FinancialInstrument

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax

us-gaap:AssetBackedSecurities


Available
Period End2020-12-312019-12-312018-12-31
Value53000.053000.052000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax100.0100.0100.0

us-gaap:CorporateBondSecurities


Available
Period End2020-12-312019-12-312018-12-31
Value6000.0047000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax11.30.090.4

us-gaap:USGovernmentAgenciesDebtSecurities


Available
Period End2020-12-312019-12-312018-12-31
Value4000.000
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax7.50.00.0

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis us-gaap:FinancialInstrument

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis

us-gaap:AssetBackedSecurities


Available
Period End2020-12-312019-12-312018-12-31
Value115000.0132000.0144000.0
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis100.0100.0100.0

us-gaap:CorporateBondSecurities


Available
Period End2020-12-312019-12-312018-12-31
Value2879000.03103000.02850000.0
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis2503.52350.81979.2

us-gaap:USGovernmentAgenciesDebtSecurities


Available
Period End2020-12-312019-12-312018-12-31
Value2317000.02039000.02216000.0
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis2014.81544.71538.9

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

us-gaap:AvailableForSaleSecuritiesDebtSecurities

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Available
Period End2020-12-312019-12-312018-12-312018-09-302018-06-302017-12-31
Value4.0523.8993.663.4613.3172.833
Percentage of AvailableForSaleSecuritiesDebtSecurities100.0100.0100.0100.0100.0100.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Available
Period End2020-12-312019-12-312018-12-312018-09-302018-06-302017-12-31
Value8.2119.5647.3197.8757.4399.402
Percentage of AvailableForSaleSecuritiesDebtSecurities202.6245.3200.0227.5224.3331.9

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring


Available
Period End2020-12-312019-12-312018-12-312018-09-302018-06-302017-12-31
Value0.80.00.00.00.00.0
Percentage of AvailableForSaleSecuritiesDebtSecurities19.70.00.00.00.00.0

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

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring, us-gaap:CorporateBondSecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1.8481.8541.7381.3441.4211.2711.8551.4231.4791.461.4331.4791.493
Percentage of AvailableForSaleSecuritiesDebtSecurities0.00.042.90.00.00.047.60.00.00.039.242.745.0

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring, us-gaap:USGovernmentAgenciesDebtSecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value2.7522.6892.3142.3042.3072.3152.0441.9911.9881.9792.2271.9821.824
Percentage of AvailableForSaleSecuritiesDebtSecurities0.00.057.10.00.00.052.40.00.00.060.857.355.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:AssetBackedSecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.0580.0610.0620.0670.0630.0580.0790.0830.0850.0890.0920.1050.14
Percentage of AvailableForSaleSecuritiesDebtSecurities0.00.01.50.00.00.02.00.00.00.02.53.04.2

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:CorporateBondSecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.5481.1381.3941.3951.4031.3791.6281.6271.6261.6221.370.7490.0
Percentage of AvailableForSaleSecuritiesDebtSecurities0.00.034.40.00.00.041.80.00.00.037.421.60.0

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

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring, us-gaap:CorporateBondSecurities


Available
Period End2020-12-312019-12-312018-12-312017-12-31
Value1.7381.8551.4331.534
Percentage of AvailableForSaleSecuritiesDebtSecurities42.947.639.254.1

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring, us-gaap:USGovernmentAgenciesDebtSecurities


Available
Period End2020-12-312019-12-312018-12-312017-12-31
Value2.3142.0442.2271.299
Percentage of AvailableForSaleSecuritiesDebtSecurities57.152.460.845.9

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:AssetBackedSecurities


Available
Period End2020-12-312019-12-312018-12-312017-12-31
Value0.0620.0790.0920.161
Percentage of AvailableForSaleSecuritiesDebtSecurities1.52.02.55.7

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:CorporateBondSecurities


Available
Period End2020-12-312019-12-312018-12-312017-12-31
Value1.3941.6281.371.635
Percentage of AvailableForSaleSecuritiesDebtSecurities34.441.837.457.7

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Available
Period End2020-12-312019-12-312018-12-312018-09-302018-06-302017-12-31
Value131310111012
Percentage of AvailableForSaleSecuritiesDebtSecurities322.4345.3300.0327.5324.3431.9

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

us-gaap:FairValueMeasurementsRecurring, us-gaap:AssetBackedSecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.0580.0610.0620.0670.0630.0580.0790.0830.0850.0890.0920.1050.14
Percentage of AvailableForSaleSecuritiesDebtSecurities0.00.01.50.00.00.02.00.00.00.02.53.04.2

us-gaap:FairValueMeasurementsRecurring, us-gaap:CorporateBondSecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value2.3962.9923.1322.7392.8242.653.4833.053.1053.0822.8032.2281.493
Percentage of AvailableForSaleSecuritiesDebtSecurities0.00.077.30.00.00.089.30.00.00.076.664.445.0

us-gaap:FairValueMeasurementsRecurring, us-gaap:USGovernmentAgenciesDebtSecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value2.7522.6892.3142.3042.3072.3152.0441.9911.9881.9792.2271.9821.824
Percentage of AvailableForSaleSecuritiesDebtSecurities0.00.057.10.00.00.052.40.00.00.060.857.355.0

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType

us-gaap:FairValueMeasurementsRecurring, us-gaap:AssetBackedSecurities


Available
Period End2020-12-312019-12-312018-12-312017-12-31
Value0.0620.0790.0920.161
Percentage of AvailableForSaleSecuritiesDebtSecurities1.52.02.55.7

us-gaap:FairValueMeasurementsRecurring, us-gaap:CorporateBondSecurities


Available
Period End2020-12-312019-12-312018-12-312017-12-31
Value3.1323.4832.8033.169
Percentage of AvailableForSaleSecuritiesDebtSecurities77.389.376.6111.9

us-gaap:FairValueMeasurementsRecurring, us-gaap:USGovernmentAgenciesDebtSecurities


Available
Period End2020-12-312019-12-312018-12-312017-12-31
Value2.3142.0442.2271.299
Percentage of AvailableForSaleSecuritiesDebtSecurities57.152.460.845.9

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:FinancialInstrument

us-gaap:AssetBackedSecurities


Available
Period End2020-12-312019-12-312018-12-31
Value0.0620.0790.092
Percentage of AvailableForSaleSecuritiesDebtSecurities1.52.02.5

us-gaap:CorporateBondSecurities


Available
Period End2020-12-312019-12-312018-12-31
Value3.1323.4832.803
Percentage of AvailableForSaleSecuritiesDebtSecurities77.389.376.6

us-gaap:USGovernmentAgenciesDebtSecurities


Available
Period End2020-12-312019-12-312018-12-31
Value2.3142.0442.227
Percentage of AvailableForSaleSecuritiesDebtSecurities57.152.460.8

us-gaap:BankOverdrafts

us-gaap:BankOverdrafts


Bank
Period End2020-12-31
Value88
Percentage of BankOverdrafts100.0

us-gaap:BusinessCombinationContingentConsiderationLiability us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments

us-gaap:BusinessCombinationContingentConsiderationLiability

bwxt:LakerEnergyProductsLtd, bwxt:NuclearPowerGroup


Business
Period End2020-12-31
Value5.0
Percentage of BusinessCombinationContingentConsiderationLiability100.0

us-gaap:ContractWithCustomerAssetNetCurrent

us-gaap:ContractWithCustomerAssetNetCurrent


Contract
Period End2020-12-312019-12-312018-12-31
Value449376318
Percentage of ContractWithCustomerAssetNetCurrent100.0100.0100.0

us-gaap:ContractWithCustomerAssetNetCurrent us-gaap:BalanceSheetLocation

bwxt:ContractsinProgress


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312018-01-01
Value516485436418382397365388348341308316306325250
Percentage of ContractWithCustomerAssetNetCurrent0.00.097.10.00.00.097.30.00.00.096.90.00.00.00.0

us-gaap:AccountsReceivable


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312018-01-01
Value5081557246624670607257102969382
Percentage of ContractWithCustomerAssetNetCurrent0.00.012.30.00.00.012.40.00.00.018.20.00.00.00.0

us-gaap:OtherAssets


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312018-01-01
Value1.371.3151.4881.4471.3911.4571.4121.6061.4971.5081.6741.6261.6261.6561.669
Percentage of ContractWithCustomerAssetNetCurrent0.00.00.30.00.00.00.40.00.00.00.50.00.00.00.0

us-gaap:ContractWithCustomerAssetNetCurrent us-gaap:StatementScenario, us-gaap:BalanceSheetLocation

srt:ScenarioForecast, us-gaap:OtherAssets


Contract
Period End2023-12-312022-12-31
Value1.20.3
Percentage of ContractWithCustomerAssetNetCurrent0.00.0

us-gaap:ContractWithCustomerLiability

us-gaap:ContractWithCustomerLiability


Contract
Period End2020-12-312019-12-312018-12-31
Value837598
Percentage of ContractWithCustomerLiability100.0100.0100.0

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

us-gaap:DebtInstrumentCarryingAmount

bwxt:NewCreditFacility, us-gaap:SecuredDebt


Debt
Period End2020-12-312019-12-312018-12-312017-12-31
Value754323770.0
Percentage of DebtInstrumentCarryingAmount100.0100.0100.00.0

us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Debt
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value7511540534432
Percentage of DebtInstrumentCarryingAmount100.00.00.00.0100.0

us-gaap:SeniorNotes, us-gaap:SecuredDebt


Debt
Period End2020-12-312019-12-312018-12-312017-12-31
Value8004004000.0
Percentage of DebtInstrumentCarryingAmount1066.792.6106.00.0

us-gaap:DebtInstrumentCarryingAmount us-gaap:LongtermDebtType

us-gaap:SeniorNotes


Debt
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312018-06-302017-12-31
Value12008008008004004004000.0
Percentage of DebtInstrumentCarryingAmount0.01066.70.00.00.092.60.00.0

us-gaap:DebtInstrumentInterestRateEffectivePercentage us-gaap:DebtInstrument

us-gaap:DebtInstrumentInterestRateEffectivePercentage

bwxt:AmendmentNo.1toCreditAgreement


Debt
Period End2020-09-30
Value1.4
Percentage of DebtInstrumentInterestRateEffectivePercentage100.0

bwxt:NewCreditFacility


Debt
Period End2020-12-31
Value1.41
Percentage of DebtInstrumentInterestRateEffectivePercentage0.0

us-gaap:DeferredFinanceCostsNet

us-gaap:DeferredFinanceCostsNet


Deferred
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312018-06-302017-12-312017-06-302016-12-312015-12-312014-12-312013-12-31
Value151212138.8798.0068.48.7959.583104.2025.0425.8926.7419.9216.502
Percentage of DeferredFinanceCostsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredFinanceCostsNet us-gaap:LongtermDebtType

us-gaap:SeniorNotes


Deferred
Period End2021-03-31
Value4.5
Percentage of DeferredFinanceCostsNet0.0

us-gaap:DeferredIncomeTaxAssetsNet

us-gaap:DeferredIncomeTaxAssetsNet


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-31
Value314749555555586061616345848486176182194181
Percentage of DeferredIncomeTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsCapitalLossCarryforwards us-gaap:IncomeTaxAuthority

us-gaap:DeferredTaxAssetsCapitalLossCarryforwards

us-gaap:DomesticCountry


Deferred
Period End2020-12-31
Value7200000.0
Percentage of DeferredTaxAssetsCapitalLossCarryforwards100.0

us-gaap:DeferredTaxAssetsEquityMethodInvestments

us-gaap:DeferredTaxAssetsEquityMethodInvestments


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value1.1484.7028.9778.34315172323163.704
Percentage of DeferredTaxAssetsEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsGross


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value129120114131246237414326416439391
Percentage of DeferredTaxAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value7.2247.2976.3498.465.5734.1421921212228
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsDomestic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal


Deferred
Period End2020-12-312019-12-31
Value6819000.07297000.0
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal100.0100.0

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value4.9618.7982.9988.6389.3738.442247.1357.7221120
Percentage of DeferredTaxAssetsOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxCreditCarryforwards

us-gaap:DeferredTaxAssetsTaxCreditCarryforwards


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value9919000.05848000.01683000.01016000.0160000.0170000.0
Percentage of DeferredTaxAssetsTaxCreditCarryforwards100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsCompensatedAbsences

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsCompensatedAbsences


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value7.4427.0776.8216.5579.8928.7641212131313
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsCompensatedAbsences100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value31363759129131210105201216198
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1312118.64720172645392927
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value2.6022.9914.3526.3557.6638.6542733354145
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantyReserves

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantyReserves


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1.3382.3652.6393.4823.8684.541618263338
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantyReserves100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1714242735213229242630
Percentage of DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value39231411108.2422035393128
Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilityNotRecognizedAmountOfUnrecognizedDeferredTaxLiabilityUndistributedEarningsOfForeignSubsidiaries

us-gaap:DeferredTaxLiabilityNotRecognizedAmountOfUnrecognizedDeferredTaxLiabilityUndistributedEarningsOfForeignSubsidiaries


Deferred
Period End2020-12-31
Value10
Percentage of DeferredTaxLiabilityNotRecognizedAmountOfUnrecognizedDeferredTaxLiabilityUndistributedEarningsOfForeignSubsidiaries100.0

us-gaap:DefinedBenefitPensionPlanLiabilitiesNoncurrent

us-gaap:DefinedBenefitPensionPlanLiabilitiesNoncurrent


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value122133144150157164172162166169173102259274296325340350357339347353358303305558563346376320336532548579579541501539586414481579
Percentage of DefinedBenefitPensionPlanLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPensionPlanLiabilitiesNoncurrent us-gaap:RetirementPlanType

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value144172173295356
Percentage of DefinedBenefitPensionPlanLiabilitiesNoncurrent99.699.799.899.899.8

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value-1.059-1.252-1.563-1.874-2.188
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value2122191111
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax-2013.1-1785.6-1262.7-599.1-538.5

us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheet us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheet

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value-9009000.0-10560000.0-16460000.0-22637000.0-20281000.0
Percentage of DefinedBenefitPlanAmountsRecognizedInBalanceSheet100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value-132820000.0-158300000.0-162100000.0-285640000.0-353730000.0
Percentage of DefinedBenefitPlanAmountsRecognizedInBalanceSheet1474.31499.1984.81261.81744.1

us-gaap:DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value18144.00.00.0
Percentage of DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent100.0100.0100.00.00.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value141614135.824
Percentage of DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent80.7120.9353.60.00.0

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value2.490.03210.04250.03640.0412
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value2.630.03310.0430.03680.0418
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate105.6103.1101.2101.1101.5

us-gaap:DefinedBenefitPlanBenefitObligation us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanBenefitObligation

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value615860686262
Percentage of DefinedBenefitPlanBenefitObligation100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value141413081186154315711565
Percentage of DefinedBenefitPlanBenefitObligation2314.92222.81963.72261.72494.82494.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter

country:CA, us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-31
Value3.3223.171
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter100.0100.0

country:CA, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-31
Value3841
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter1166.61302.2

country:US, us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value12141717
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter389.8443.50.00.0

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value336335336421
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter10138.010564.90.00.0