10-Q Filing

BWX TECHNOLOGIES, INC. CIK: 1486957 Q3 2016

Filing Information

Form Type	10-Q
Accession Number	`0001486957-16-000036`
Period End Date	20160930
Filing Date	20161031
Fiscal Year	2016
Fiscal Period	Q3
XBRL Instance	bwxt-20160930.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 101 Income Statement 136 Cash Flow Statement 83 Stockholders Equity 42 Comprehensive Income 68

Balance Sheet 101 line items

Line Item	Tag	Value	Unit	Period
Common stock, par value (usd per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common stock, par value (usd per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	325.00M	shares	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	325.00M	shares	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	124.08M	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$154.73M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$45.23M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$135.92M	USD	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	122.81M	shares	Point-in-time
Preferred stock, par value (usd per share)	`PreferredStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Preferred stock, par value (usd per share)	`PreferredStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Restricted cash and cash equivalents	`RestrictedCashAndCashEquivalents`	$15.36M	USD	Point-in-time
Restricted cash and cash equivalents	`RestrictedCashAndCashEquivalents`	$5.81M	USD	Point-in-time
Preferred stock, shares authorized (in shares)	`PreferredStockSharesAuthorized`	75.00M	shares	Point-in-time
Investments	`ShortTermInvestments`	$14.70M	USD	Point-in-time
Investments	`ShortTermInvestments`	$3.48M	USD	Point-in-time
Preferred stock, shares authorized (in shares)	`PreferredStockSharesAuthorized`	75.00M	shares	Point-in-time
Preferred stock, shares issued (in shares)	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Accounts receivable trade, net	`AccountsReceivableNetCurrent`	$157.19M	USD	Point-in-time
Preferred stock, shares issued (in shares)	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Accounts receivable trade, net	`AccountsReceivableNetCurrent`	$153.33M	USD	Point-in-time
Treasury stock at cost, shares (in shares)	`TreasuryStockShares`	24.85M	shares	Point-in-time
Accounts receivable other	`OtherReceivables`	$23.87M	USD	Point-in-time
Treasury stock at cost, shares (in shares)	`TreasuryStockShares`	17.52M	shares	Point-in-time
Accounts receivable other	`OtherReceivables`	$22.44M	USD	Point-in-time
Contracts in progress	`CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear`	$345.97M	USD	Point-in-time
Contracts in progress	`CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear`	$265.77M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$32.19M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$24.59M	USD	Point-in-time
Total Current Assets	`AssetsCurrent`	$617.35M	USD	Point-in-time
Total Current Assets	`AssetsCurrent`	$647.29M	USD	Point-in-time
Property, Plant and Equipment	`PropertyPlantAndEquipmentGross`	$846.94M	USD	Point-in-time
Property, Plant and Equipment	`PropertyPlantAndEquipmentGross`	$879.01M	USD	Point-in-time
Less accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$615.02M	USD	Point-in-time
Less accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$578.09M	USD	Point-in-time
Net Property, Plant and Equipment	`PropertyPlantAndEquipmentNet`	$268.84M	USD	Point-in-time
Net Property, Plant and Equipment	`PropertyPlantAndEquipmentNet`	$263.99M	USD	Point-in-time
Investments	`LongTermInvestmentsExcludingInvestmentsInUnconsolidatedAffiliates`	$7.33M	USD	Point-in-time
Investments	`LongTermInvestmentsExcludingInvestmentsInUnconsolidatedAffiliates`	$6.07M	USD	Point-in-time
Goodwill	`Goodwill`	$168.70M	USD	Point-in-time
Goodwill	`Goodwill`	$168.43M	USD	Point-in-time
Deferred Income Taxes	`DeferredTaxAssetsNetNoncurrent`	$175.87M	USD	Point-in-time
Deferred Income Taxes	`DeferredTaxAssetsNetNoncurrent`	$181.36M	USD	Point-in-time
Investments in Unconsolidated Affiliates	`InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures`	$32.09M	USD	Point-in-time
Investments in Unconsolidated Affiliates	`InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures`	$47.87M	USD	Point-in-time
Intangible Assets	`IntangibleAssetsNetExcludingGoodwill`	$56.90M	USD	Point-in-time
Intangible Assets	`IntangibleAssetsNetExcludingGoodwill`	$58.33M	USD	Point-in-time
Other Assets	`OtherAssetsNoncurrent`	$27.12M	USD	Point-in-time
Other Assets	`OtherAssetsNoncurrent`	$12.98M	USD	Point-in-time
TOTAL	`Assets`	$1.38B	USD	Point-in-time
TOTAL	`Assets`	$1.37B	USD	Point-in-time
Current maturities of long-term debt	`LongtermDebtGrossCurrent`	$15.00M	USD	Point-in-time
Current maturities of long-term debt	`LongtermDebtGrossCurrent`	$20.62M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$74.13M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$76.50M	USD	Point-in-time
Accrued employee benefits	`EmployeeRelatedLiabilitiesCurrent`	$67.60M	USD	Point-in-time
Accrued employee benefits	`EmployeeRelatedLiabilitiesCurrent`	$56.74M	USD	Point-in-time
Accrued liabilities other	`OtherAccruedLiabilitiesCurrent`	$44.95M	USD	Point-in-time
Accrued liabilities other	`OtherAccruedLiabilitiesCurrent`	$70.38M	USD	Point-in-time
Advance billings on contracts	`BillingsInExcessOfCost`	$138.56M	USD	Point-in-time
Advance billings on contracts	`BillingsInExcessOfCost`	$144.23M	USD	Point-in-time
Accrued warranty expense	`ProductWarrantyAccrualClassifiedCurrent`	$15.89M	USD	Point-in-time
Accrued warranty expense	`ProductWarrantyAccrualClassifiedCurrent`	$13.54M	USD	Point-in-time
Accrued warranty expense	`ProductWarrantyAccrualClassifiedCurrent`	$12.87M	USD	Point-in-time
Accrued warranty expense	`ProductWarrantyAccrualClassifiedCurrent`	$15.98M	USD	Point-in-time
Total Current Liabilities	`LiabilitiesCurrent`	$381.35M	USD	Point-in-time
Total Current Liabilities	`LiabilitiesCurrent`	$353.78M	USD	Point-in-time
Long-Term Debt	`LongTermDebtNoncurrent`	$423.21M	USD	Point-in-time
Long-Term Debt	`LongTermDebtNoncurrent`	$278.26M	USD	Point-in-time
Accumulated Postretirement Benefit Obligation	`OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent`	$20.42M	USD	Point-in-time
Accumulated Postretirement Benefit Obligation	`OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent`	$19.87M	USD	Point-in-time
Environmental Liabilities	`AccruedEnvironmentalLossContingenciesNoncurrent`	$60.24M	USD	Point-in-time
Environmental Liabilities	`AccruedEnvironmentalLossContingenciesNoncurrent`	$62.55M	USD	Point-in-time
Pension Liability	`DefinedBenefitPensionPlanLiabilitiesNoncurrent`	$358.51M	USD	Point-in-time
Pension Liability	`DefinedBenefitPensionPlanLiabilitiesNoncurrent`	$339.99M	USD	Point-in-time
Other Liabilities	`OtherLiabilitiesNoncurrent`	$24.55M	USD	Point-in-time
Other Liabilities	`OtherLiabilitiesNoncurrent`	$19.54M	USD	Point-in-time
Commitments and Contingencies	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and Contingencies	`CommitmentsAndContingencies`	-	USD	Point-in-time
Common stock, par value $0.01 per share, authorized 325,000,000 shares; issued 124,083,156 and 122,813,135 shares at September 30, 2016 and December 31, 2015, respectively	`CommonStockValue`	$1.23M	USD	Point-in-time
Common stock, par value $0.01 per share, authorized 325,000,000 shares; issued 124,083,156 and 122,813,135 shares at September 30, 2016 and December 31, 2015, respectively	`CommonStockValue`	$1.24M	USD	Point-in-time
Preferred stock, par value $0.01 per share, authorized 75,000,000 shares; No shares issued	`PreferredStockValue`	-	USD	Point-in-time
Preferred stock, par value $0.01 per share, authorized 75,000,000 shares; No shares issued	`PreferredStockValue`	-	USD	Point-in-time
Capital in excess of par value	`AdditionalPaidInCapitalCommonStock`	$16.17M	USD	Point-in-time
Capital in excess of par value	`AdditionalPaidInCapitalCommonStock`	$22.73M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$857.84M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$739.35M	USD	Point-in-time
Treasury stock at cost, 24,853,379 and 17,515,757 shares at September 30, 2016 and December 31, 2015, respectively	`TreasuryStockValue`	$761.96M	USD	Point-in-time
Treasury stock at cost, 24,853,379 and 17,515,757 shares at September 30, 2016 and December 31, 2015, respectively	`TreasuryStockValue`	$498.35M	USD	Point-in-time
Accumulated other comprehensive income	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$752.00K	USD	Point-in-time
Accumulated other comprehensive income	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$5.00M	USD	Point-in-time
Stockholders Equity BWX Technologies, Inc.	`StockholdersEquity`	$118.30M	USD	Point-in-time
Stockholders Equity BWX Technologies, Inc.	`StockholdersEquity`	$265.72M	USD	Point-in-time
Noncontrolling interest	`MinorityInterest`	$339.00K	USD	Point-in-time
Noncontrolling interest	`MinorityInterest`	$13.92M	USD	Point-in-time
Total Stockholders Equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.01B	USD	Point-in-time
Total Stockholders Equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$331.48M	USD	Point-in-time
Total Stockholders Equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$118.64M	USD	Point-in-time
Total Stockholders Equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$279.63M	USD	Point-in-time
TOTAL	`LiabilitiesAndStockholdersEquity`	$1.37B	USD	Point-in-time
TOTAL	`LiabilitiesAndStockholdersEquity`	$1.38B	USD	Point-in-time

Income Statement 136 line items

Line Item	Tag	Value	Unit	Period
Revenues	`Revenues`	$358.97M	USD	1 Quarter
Revenues	`Revenues`	$1.05B	USD	3 Qtrs
Revenues	`Revenues`	$379.50M	USD	1 Quarter
Revenues	`Revenues`	$1.15B	USD	3 Qtrs
Cost of operations	`CostOfRevenue`	$250.56M	USD	1 Quarter
Cost of operations	`CostOfRevenue`	$727.68M	USD	3 Qtrs
Cost of operations	`CostOfRevenue`	$271.17M	USD	1 Quarter
Cost of operations	`CostOfRevenue`	$785.06M	USD	3 Qtrs
Research and development costs	`ResearchAndDevelopmentExpense`	$5.04M	USD	3 Qtrs
Research and development costs	`ResearchAndDevelopmentExpense`	$9.00M	USD	3 Qtrs
Research and development costs	`ResearchAndDevelopmentExpense`	$1.75M	USD	1 Quarter
Research and development costs	`ResearchAndDevelopmentExpense`	$1.52M	USD	1 Quarter
Gains on asset disposals and impairments, net	`GainLossOnDispositionOfAssets`	$3.00K	USD	3 Qtrs
Gains on asset disposals and impairments, net	`GainLossOnDispositionOfAssets`	$55.00K	USD	3 Qtrs
Gains on asset disposals and impairments, net	`GainLossOnDispositionOfAssets`	$5.00K	USD	1 Quarter
Gains on asset disposals and impairments, net	`GainLossOnDispositionOfAssets`	-	USD	1 Quarter
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$152.74M	USD	3 Qtrs
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$49.23M	USD	1 Quarter
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$146.47M	USD	3 Qtrs
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$47.55M	USD	1 Quarter
mPower framework agreement	`LossContingencyLossInPeriod`	-	USD	1 Quarter
mPower framework agreement	`LossContingencyLossInPeriod`	-	USD	3 Qtrs
mPower framework agreement	`LossContingencyLossInPeriod`	-	USD	1 Quarter
mPower framework agreement	`LossContingencyLossInPeriod`	$30.00M	USD	3 Qtrs
Income related to litigation proceeds	`IncomeRelatedToLitigationProceeds`	$65.73M	USD	1 Quarter
Income related to litigation proceeds	`IncomeRelatedToLitigationProceeds`	-	USD	1 Quarter
Income related to litigation proceeds	`IncomeRelatedToLitigationProceeds`	-	USD	3 Qtrs
Income related to litigation proceeds	`IncomeRelatedToLitigationProceeds`	$65.73M	USD	3 Qtrs
Special charges for restructuring activities	`RestructuringCharges`	$16.61M	USD	3 Qtrs
Special charges for restructuring activities	`RestructuringCharges`	-	USD	1 Quarter
Special charges for restructuring activities	`RestructuringCharges`	-	USD	3 Qtrs
Special charges for restructuring activities	`RestructuringCharges`	-	USD	1 Quarter
Costs to spin-off the Power Generation business	`CostsIncurredDevelopmentCosts`	-	USD	1 Quarter
Costs to spin-off the Power Generation business	`CostsIncurredDevelopmentCosts`	$25.99M	USD	3 Qtrs
Costs to spin-off the Power Generation business	`CostsIncurredDevelopmentCosts`	-	USD	1 Quarter
Costs to spin-off the Power Generation business	`CostsIncurredDevelopmentCosts`	-	USD	3 Qtrs
Total Costs and Expenses	`CostsAndExpenses`	$966.52M	USD	3 Qtrs
Total Costs and Expenses	`CostsAndExpenses`	$322.14M	USD	1 Quarter
Total Costs and Expenses	`CostsAndExpenses`	$866.28M	USD	3 Qtrs
Total Costs and Expenses	`CostsAndExpenses`	$233.90M	USD	1 Quarter
Equity in Income of Investees	`IncomeLossFromEquityMethodInvestments`	$5.01M	USD	1 Quarter
Equity in Income of Investees	`IncomeLossFromEquityMethodInvestments`	$11.03M	USD	3 Qtrs
Equity in Income of Investees	`IncomeLossFromEquityMethodInvestments`	$5.89M	USD	1 Quarter
Equity in Income of Investees	`IncomeLossFromEquityMethodInvestments`	$13.25M	USD	3 Qtrs
Operating Income	`OperatingIncomeLoss`	$196.34M	USD	3 Qtrs
Operating Income	`OperatingIncomeLoss`	$62.37M	USD	1 Quarter
Operating Income	`OperatingIncomeLoss`	$193.44M	USD	3 Qtrs
Operating Income	`OperatingIncomeLoss`	$130.97M	USD	1 Quarter
Interest income	`InvestmentIncomeInterest`	$30.03M	USD	1 Quarter
Interest income	`InvestmentIncomeInterest`	$30.26M	USD	3 Qtrs
Interest income	`InvestmentIncomeInterest`	$128.00K	USD	1 Quarter
Interest income	`InvestmentIncomeInterest`	$533.00K	USD	3 Qtrs
Interest expense	`InterestExpense`	$6.79M	USD	3 Qtrs
Interest expense	`InterestExpense`	$2.05M	USD	1 Quarter
Interest expense	`InterestExpense`	$1.23M	USD	1 Quarter
Interest expense	`InterestExpense`	$5.33M	USD	3 Qtrs
Other net	`OtherIncomeExpenseNet`	$-1.67M	USD	1 Quarter
Other net	`OtherIncomeExpenseNet`	$25.12M	USD	3 Qtrs
Other net	`OtherIncomeExpenseNet`	$-2.95M	USD	3 Qtrs
Other net	`OtherIncomeExpenseNet`	$228.00K	USD	1 Quarter
Total Other Income (Expense)	`OtherNonoperatingIncomeExpense`	$27.13M	USD	1 Quarter
Total Other Income (Expense)	`OtherNonoperatingIncomeExpense`	$20.52M	USD	3 Qtrs
Total Other Income (Expense)	`OtherNonoperatingIncomeExpense`	$20.33M	USD	3 Qtrs
Total Other Income (Expense)	`OtherNonoperatingIncomeExpense`	$-1.69M	USD	1 Quarter
Income from continuing operations before provision for income taxes and noncontrolling interest	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$60.68M	USD	1 Quarter
Income from continuing operations before provision for income taxes and noncontrolling interest	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$158.10M	USD	1 Quarter
Income from continuing operations before provision for income taxes and noncontrolling interest	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$216.86M	USD	3 Qtrs
Income from continuing operations before provision for income taxes and noncontrolling interest	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$213.77M	USD	3 Qtrs
Provision for Income Taxes	`IncomeTaxExpenseBenefit`	$66.62M	USD	3 Qtrs
Provision for Income Taxes	`IncomeTaxExpenseBenefit`	$20.03M	USD	1 Quarter
Provision for Income Taxes	`IncomeTaxExpenseBenefit`	$76.79M	USD	3 Qtrs
Provision for Income Taxes	`IncomeTaxExpenseBenefit`	$51.59M	USD	1 Quarter
Income from continuing operations before noncontrolling interest	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$106.51M	USD	1 Quarter
Income from continuing operations before noncontrolling interest	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$147.14M	USD	3 Qtrs
Income from continuing operations before noncontrolling interest	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$40.65M	USD	1 Quarter
Income from continuing operations before noncontrolling interest	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$140.07M	USD	3 Qtrs
Income (loss) from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTax`	-	USD	1 Quarter
Income (loss) from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$-2.47M	USD	1 Quarter
Income (loss) from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$-8.31M	USD	3 Qtrs
Income (loss) from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTax`	-	USD	3 Qtrs
Net Income	`ProfitLoss`	$104.03M	USD	1 Quarter
Net Income	`ProfitLoss`	$147.14M	USD	3 Qtrs
Net Income	`ProfitLoss`	$131.76M	USD	3 Qtrs
Net Income	`ProfitLoss`	$40.65M	USD	1 Quarter
Net (Income) Loss Attributable to Noncontrolling Interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-224.00K	USD	3 Qtrs
Net (Income) Loss Attributable to Noncontrolling Interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$373.00K	USD	3 Qtrs
Net (Income) Loss Attributable to Noncontrolling Interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$164.00K	USD	1 Quarter
Net (Income) Loss Attributable to Noncontrolling Interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$145.00K	USD	1 Quarter
Net Income Attributable to BWX Technologies, Inc.	`NetIncomeLoss`	$40.50M	USD	1 Quarter
Net Income Attributable to BWX Technologies, Inc.	`NetIncomeLoss`	$103.87M	USD	1 Quarter
Net Income Attributable to BWX Technologies, Inc.	`NetIncomeLoss`	$146.77M	USD	3 Qtrs
Net Income Attributable to BWX Technologies, Inc.	`NetIncomeLoss`	$131.98M	USD	3 Qtrs
Income from continuing operations, net of tax	`IncomeLossFromContinuingOperations`	$146.77M	USD	3 Qtrs
Income from continuing operations, net of tax	`IncomeLossFromContinuingOperations`	$40.50M	USD	1 Quarter
Income from continuing operations, net of tax	`IncomeLossFromContinuingOperations`	$140.40M	USD	3 Qtrs
Income from continuing operations, net of tax	`IncomeLossFromContinuingOperations`	$106.34M	USD	1 Quarter
Income (loss) from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	-	USD	1 Quarter
Income (loss) from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	$-2.47M	USD	1 Quarter
Income (loss) from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	-	USD	3 Qtrs
Income (loss) from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	$-8.42M	USD	3 Qtrs
Net Income Attributable to BWX Technologies, Inc.	`NetIncomeLoss`	$40.50M	USD	1 Quarter
Net Income Attributable to BWX Technologies, Inc.	`NetIncomeLoss`	$103.87M	USD	1 Quarter
Net Income Attributable to BWX Technologies, Inc.	`NetIncomeLoss`	$146.77M	USD	3 Qtrs
Net Income Attributable to BWX Technologies, Inc.	`NetIncomeLoss`	$131.98M	USD	3 Qtrs
Income from continuing operations (usd per share)	`IncomeLossFromContinuingOperationsPerBasicShare`	$1.31	USD	3 Qtrs
Income from continuing operations (usd per share)	`IncomeLossFromContinuingOperationsPerBasicShare`	$0.39	USD	1 Quarter
Income from continuing operations (usd per share)	`IncomeLossFromContinuingOperationsPerBasicShare`	$1.42	USD	3 Qtrs
Income from continuing operations (usd per share)	`IncomeLossFromContinuingOperationsPerBasicShare`	$0.99	USD	1 Quarter
Income (loss) from discontinued operations (usd per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	-	USD	1 Quarter
Income (loss) from discontinued operations (usd per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	$-0.08	USD	3 Qtrs
Income (loss) from discontinued operations (usd per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	-	USD	3 Qtrs
Income (loss) from discontinued operations (usd per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	$-0.02	USD	1 Quarter
Net Income Attributable to BWX Technologies, Inc. (usd per share)	`EarningsPerShareBasic`	$1.42	USD	3 Qtrs
Net Income Attributable to BWX Technologies, Inc. (usd per share)	`EarningsPerShareBasic`	$0.39	USD	1 Quarter
Net Income Attributable to BWX Technologies, Inc. (usd per share)	`EarningsPerShareBasic`	$1.23	USD	3 Qtrs
Net Income Attributable to BWX Technologies, Inc. (usd per share)	`EarningsPerShareBasic`	$0.97	USD	1 Quarter
Income from continuing operations (usd per share)	`IncomeLossFromContinuingOperationsPerDilutedShare`	$1.30	USD	3 Qtrs
Income from continuing operations (usd per share)	`IncomeLossFromContinuingOperationsPerDilutedShare`	$0.39	USD	1 Quarter
Income from continuing operations (usd per share)	`IncomeLossFromContinuingOperationsPerDilutedShare`	$1.40	USD	3 Qtrs
Income from continuing operations (usd per share)	`IncomeLossFromContinuingOperationsPerDilutedShare`	$0.98	USD	1 Quarter
Income (loss) from discontinued operations (usd per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	-	USD	3 Qtrs
Income (loss) from discontinued operations (usd per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	$-0.02	USD	1 Quarter
Income (loss) from discontinued operations (usd per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	$-0.08	USD	3 Qtrs
Income (loss) from discontinued operations (usd per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	-	USD	1 Quarter
Net Income Attributable to BWX Technologies, Inc. (usd per share)	`EarningsPerShareDiluted`	$1.23	USD	3 Qtrs
Net Income Attributable to BWX Technologies, Inc. (usd per share)	`EarningsPerShareDiluted`	$0.39	USD	1 Quarter
Net Income Attributable to BWX Technologies, Inc. (usd per share)	`EarningsPerShareDiluted`	$0.96	USD	1 Quarter
Net Income Attributable to BWX Technologies, Inc. (usd per share)	`EarningsPerShareDiluted`	$1.40	USD	3 Qtrs
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	103.54M	shares	3 Qtrs
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	106.96M	shares	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	106.95M	shares	3 Qtrs
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	102.74M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	104.80M	shares	3 Qtrs
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	107.63M	shares	3 Qtrs
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	103.82M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	108.18M	shares	1 Quarter

Cash Flow Statement 83 line items

Line Item	Tag	Value	Unit	Period
Net Income	`ProfitLoss`	$104.03M	USD	1 Quarter
Net Income	`ProfitLoss`	$147.14M	USD	3 Qtrs
Net Income	`ProfitLoss`	$131.76M	USD	3 Qtrs
Net Income	`ProfitLoss`	$40.65M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$65.01M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$37.09M	USD	3 Qtrs
Income of investees, net of dividends	`IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions`	$6.08M	USD	3 Qtrs
Income of investees, net of dividends	`IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions`	$221.00K	USD	3 Qtrs
(Gains) losses on asset disposals and impairments, net	`GainsLossesOnDispositionOfAssetsAndImpairments`	$-26.44M	USD	3 Qtrs
(Gains) losses on asset disposals and impairments, net	`GainsLossesOnDispositionOfAssetsAndImpairments`	$55.00K	USD	3 Qtrs
Gain on deconsolidation of Generation mPower LLC	`DeconsolidationGainOrLossAmount`	$13.57M	USD	3 Qtrs
Gain on deconsolidation of Generation mPower LLC	`DeconsolidationGainOrLossAmount`	-	USD	3 Qtrs
Recognition of losses for pension and postretirement plans	`RecognitionOfGainsLossesForPensionAndPostretirementPlans`	$-3.59M	USD	3 Qtrs
Recognition of losses for pension and postretirement plans	`RecognitionOfGainsLossesForPensionAndPostretirementPlans`	$-1.22M	USD	3 Qtrs
Stock-based compensation expense	`ShareBasedCompensation`	$8.37M	USD	3 Qtrs
Stock-based compensation expense	`ShareBasedCompensation`	$25.11M	USD	3 Qtrs
Excess tax benefits from stock-based compensation	`ExcessTaxBenefitFromShareBasedCompensationOperatingActivities`	$381.00K	USD	3 Qtrs
Excess tax benefits from stock-based compensation	`ExcessTaxBenefitFromShareBasedCompensationOperatingActivities`	$2.29M	USD	3 Qtrs
Accounts receivable	`IncreaseDecreaseInAccountsAndOtherReceivables`	$273.00K	USD	3 Qtrs
Accounts receivable	`IncreaseDecreaseInAccountsAndOtherReceivables`	$4.38M	USD	3 Qtrs
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$2.63M	USD	3 Qtrs
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-33.83M	USD	3 Qtrs
Contracts in progress and advance billings on contracts	`IncreaseDecreaseContractsInProgressAndAdvanceBillingsOnContracts`	$-59.02M	USD	3 Qtrs
Contracts in progress and advance billings on contracts	`IncreaseDecreaseContractsInProgressAndAdvanceBillingsOnContracts`	$72.92M	USD	3 Qtrs
Income taxes	`IncreaseDecreaseInIncomeTaxes`	$-17.26M	USD	3 Qtrs
Income taxes	`IncreaseDecreaseInIncomeTaxes`	$18.51M	USD	3 Qtrs
Accrued and other current liabilities	`IncreaseDecreaseInOtherAccruedLiabilities`	$6.83M	USD	3 Qtrs
Accrued and other current liabilities	`IncreaseDecreaseInOtherAccruedLiabilities`	$5.42M	USD	3 Qtrs
Pension liability, accrued postretirement benefit obligation and employee benefits	`IncreaseDecreaseInPensionPostretirementAndAccruedEmployeeBenefits`	$41.34M	USD	3 Qtrs
Pension liability, accrued postretirement benefit obligation and employee benefits	`IncreaseDecreaseInPensionPostretirementAndAccruedEmployeeBenefits`	$37.53M	USD	3 Qtrs
Other, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-15.82M	USD	3 Qtrs
Other, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$3.84M	USD	3 Qtrs
NET CASH PROVIDED BY OPERATING ACTIVITIES	`NetCashProvidedByUsedInOperatingActivitiesContinuingOperations`	$238.86M	USD	3 Qtrs
NET CASH PROVIDED BY OPERATING ACTIVITIES	`NetCashProvidedByUsedInOperatingActivitiesContinuingOperations`	$81.14M	USD	3 Qtrs
Decrease in restricted cash and cash equivalents	`IncreaseDecreaseInRestrictedCash`	$-1.58M	USD	3 Qtrs
Decrease in restricted cash and cash equivalents	`IncreaseDecreaseInRestrictedCash`	$-9.55M	USD	3 Qtrs
Purchases of property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$52.19M	USD	3 Qtrs
Purchases of property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$30.86M	USD	3 Qtrs
Purchases of securities	`PaymentsToAcquireAvailableForSaleSecurities`	$9.71M	USD	3 Qtrs
Purchases of securities	`PaymentsToAcquireAvailableForSaleSecurities`	$17.60M	USD	3 Qtrs
Sales and maturities of securities	`ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities`	$5.44M	USD	3 Qtrs
Sales and maturities of securities	`ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities`	$7.89M	USD	3 Qtrs
Proceeds from asset disposals	`ProceedsFromSalesOfAssetsInvestingActivities`	$55.00K	USD	3 Qtrs
Proceeds from asset disposals	`ProceedsFromSalesOfAssetsInvestingActivities`	$60.00K	USD	3 Qtrs
Investments, net of return of capital, in equity method investees	`PaymentsToAcquireAssetsInvestingActivities`	-	USD	3 Qtrs
Investments, net of return of capital, in equity method investees	`PaymentsToAcquireAssetsInvestingActivities`	$9.16M	USD	3 Qtrs
NET CASH USED IN INVESTING ACTIVITIES	`NetCashProvidedByUsedInInvestingActivitiesContinuingOperations`	$-54.83M	USD	3 Qtrs
NET CASH USED IN INVESTING ACTIVITIES	`NetCashProvidedByUsedInInvestingActivitiesContinuingOperations`	$-40.13M	USD	3 Qtrs
Borrowings under the Credit Agreement	`ProceedsFromIssuanceOfDebt`	$241.30M	USD	3 Qtrs
Borrowings under the Credit Agreement	`ProceedsFromIssuanceOfDebt`	$177.35M	USD	3 Qtrs
Repayments under Credit Agreement	`RepaymentsOfLinesOfCredit`	$91.15M	USD	3 Qtrs
Repayments under Credit Agreement	`RepaymentsOfLinesOfCredit`	$177.35M	USD	3 Qtrs
Payment of debt issuance costs	`PaymentsOfDebtIssuanceCosts`	$4.93M	USD	3 Qtrs
Payment of debt issuance costs	`PaymentsOfDebtIssuanceCosts`	$663.00K	USD	3 Qtrs
Repurchase of common shares	`PaymentsForRepurchaseOfCommonStock`	$293.00M	USD	3 Qtrs
Repurchase of common shares	`PaymentsForRepurchaseOfCommonStock`	$18.09M	USD	3 Qtrs
Dividends paid to common shareholders	`PaymentsOfDividendsCommonStock`	$28.42M	USD	3 Qtrs
Dividends paid to common shareholders	`PaymentsOfDividendsCommonStock`	$28.11M	USD	3 Qtrs
Exercise of stock options	`ProceedsFromStockOptionsExercised`	$3.65M	USD	3 Qtrs
Exercise of stock options	`ProceedsFromStockOptionsExercised`	$18.77M	USD	3 Qtrs
Excess tax benefits from stock-based compensation	`ExcessTaxBenefitFromShareBasedCompensationFinancingActivities`	$2.29M	USD	3 Qtrs
Excess tax benefits from stock-based compensation	`ExcessTaxBenefitFromShareBasedCompensationFinancingActivities`	$381.00K	USD	3 Qtrs
Cash divested in connection with spin-off of Power Generation business	`CashDivestedFromDeconsolidation`	-	USD	3 Qtrs
Cash divested in connection with spin-off of Power Generation business	`CashDivestedFromDeconsolidation`	$307.56M	USD	3 Qtrs
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-382.00K	USD	3 Qtrs
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-332.00K	USD	3 Qtrs
NET CASH USED IN FINANCING ACTIVITIES	`NetCashProvidedByUsedInFinancingActivitiesContinuingOperations`	$-354.99M	USD	3 Qtrs
NET CASH USED IN FINANCING ACTIVITIES	`NetCashProvidedByUsedInFinancingActivitiesContinuingOperations`	$-151.24M	USD	3 Qtrs
EFFECTS OF EXCHANGE RATE CHANGES ON CASH	`EffectOfExchangeRateOnCashAndCashEquivalents`	$729.00K	USD	3 Qtrs
EFFECTS OF EXCHANGE RATE CHANGES ON CASH	`EffectOfExchangeRateOnCashAndCashEquivalents`	$-6.09M	USD	3 Qtrs
TOTAL DECREASE IN CASH AND CASH EQUIVALENTS	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-177.05M	USD	3 Qtrs
TOTAL DECREASE IN CASH AND CASH EQUIVALENTS	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-109.50M	USD	3 Qtrs
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	`CashAndCashEquivalentsAtCarryingValueIncludingDiscontinuedOperations`	$312.97M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	`CashAndCashEquivalentsAtCarryingValueIncludingDiscontinuedOperations`	$154.73M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF PERIOD	`CashAndCashEquivalentsAtCarryingValue`	$154.73M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF PERIOD	`CashAndCashEquivalentsAtCarryingValue`	$45.23M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF PERIOD	`CashAndCashEquivalentsAtCarryingValue`	$135.92M	USD	Point-in-time
Interest	`InterestPaidNet`	$4.37M	USD	3 Qtrs
Interest	`InterestPaidNet`	$5.29M	USD	3 Qtrs
Income taxes (net of refunds)	`IncomeTaxesPaidNet`	$48.78M	USD	3 Qtrs
Income taxes (net of refunds)	`IncomeTaxesPaidNet`	$82.05M	USD	3 Qtrs
Accrued capital expenditures included in accounts payable	`CapitalExpendituresIncurredButNotYetPaid`	$2.16M	USD	3 Qtrs
Accrued capital expenditures included in accounts payable	`CapitalExpendituresIncurredButNotYetPaid`	$5.63M	USD	3 Qtrs

Stockholders Equity 42 line items

Line Item	Tag	Value	Unit	Period
Dividends declared per share (usd per share)	`CommonStockDividendsPerShareDeclared`	$0.27	USD	3 Qtrs
Dividends declared per share (usd per share)	`CommonStockDividendsPerShareDeclared`	$0.26	USD	3 Qtrs
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.01B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$331.48M	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$118.64M	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$279.63M	USD	Point-in-time
Beginning balance (in shares)	`CommonStockSharesIssued`	124.08M	shares	Point-in-time
Beginning balance (in shares)	`CommonStockSharesIssued`	122.81M	shares	Point-in-time
Net Income	`ProfitLoss`	$104.03M	USD	1 Quarter
Net Income	`ProfitLoss`	$147.14M	USD	3 Qtrs
Net Income	`ProfitLoss`	$131.76M	USD	3 Qtrs
Net Income	`ProfitLoss`	$40.65M	USD	1 Quarter
Dividends declared	`Dividends`	$28.19M	USD	3 Qtrs
Dividends declared	`Dividends`	$28.28M	USD	3 Qtrs
Currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-3.63M	USD	1 Quarter
Currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$1.84M	USD	3 Qtrs
Currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-12.41M	USD	3 Qtrs
Currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-272.00K	USD	1 Quarter
Derivative financial instruments	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	$-978.00K	USD	3 Qtrs
Derivative financial instruments	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	$260.00K	USD	3 Qtrs
Defined benefit obligations	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-797.00K	USD	3 Qtrs
Defined benefit obligations	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-929.00K	USD	3 Qtrs
Available-for-sale investments	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax`	$-785.00K	USD	3 Qtrs
Available-for-sale investments	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax`	$1.35M	USD	3 Qtrs
Exercise of stock options	`StockIssuedDuringPeriodValueStockOptionsExercised`	$21.14M	USD	3 Qtrs
Exercise of stock options	`StockIssuedDuringPeriodValueStockOptionsExercised`	$4.11M	USD	3 Qtrs
Contributions to thrift plan	`StockIssuedDuringPeriodValueEmployeeStockPurchasePlan`	$4.53M	USD	3 Qtrs
Shares placed in treasury	`TreasuryStockValueAcquiredCostMethod`	$22.57M	USD	3 Qtrs
Shares placed in treasury	`TreasuryStockValueAcquiredCostMethod`	$303.61M	USD	3 Qtrs
Stock-based compensation charges	`StockGrantedDuringPeriodValueSharebasedCompensation`	$8.93M	USD	3 Qtrs
Stock-based compensation charges	`StockGrantedDuringPeriodValueSharebasedCompensation`	$24.28M	USD	3 Qtrs
Distributions to noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$382.00K	USD	3 Qtrs
Distributions to noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$332.00K	USD	3 Qtrs
Deconsolidation of Generation mPower LLC	`NoncontrollingInterestDecreaseFromDeconsolidation`	$13.57M	USD	3 Qtrs
Other	`StockholdersEquityOther`	$-3.39M	USD	3 Qtrs
Spin-off of Power Generation Business	`StockholdersEquityNoteSpinoffTransaction`	$-783.05M	USD	3 Qtrs
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.01B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$331.48M	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$118.64M	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$279.63M	USD	Point-in-time
Ending balance (in shares)	`CommonStockSharesIssued`	124.08M	shares	Point-in-time
Ending balance (in shares)	`CommonStockSharesIssued`	122.81M	shares	Point-in-time

Comprehensive Income 68 line items

Line Item	Tag	Value	Unit	Period
Tax provision on currency translation adjustments provision (benefit)	`OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax`	$-680.00K	USD	3 Qtrs
Net Income	`ProfitLoss`	$104.03M	USD	1 Quarter
Net Income	`ProfitLoss`	$147.14M	USD	3 Qtrs
Net Income	`ProfitLoss`	$131.76M	USD	3 Qtrs
Tax provision on currency translation adjustments provision (benefit)	`OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax`	-	USD	3 Qtrs
Net Income	`ProfitLoss`	$40.65M	USD	1 Quarter
Tax provision on currency translation adjustments provision (benefit)	`OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax`	$54.00K	USD	1 Quarter
Tax provision on currency translation adjustments provision (benefit)	`OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax`	-	USD	1 Quarter
Tax (provision) benefit of unrealized gains (losses) on derivative financial instruments	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax`	$-20.00K	USD	1 Quarter
Tax (provision) benefit of unrealized gains (losses) on derivative financial instruments	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax`	$-1.58M	USD	3 Qtrs
Tax (provision) benefit of unrealized gains (losses) on derivative financial instruments	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax`	$332.00K	USD	3 Qtrs
Tax (provision) benefit of unrealized gains (losses) on derivative financial instruments	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax`	$-803.00K	USD	1 Quarter
Tax (benefit) provision on reclassification adjustment for (gains) losses on derivative financial instruments	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax`	$240.00K	USD	3 Qtrs
Tax (benefit) provision on reclassification adjustment for (gains) losses on derivative financial instruments	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax`	$-1.25M	USD	3 Qtrs
Tax (benefit) provision on reclassification adjustment for (gains) losses on derivative financial instruments	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax`	$-45.00K	USD	1 Quarter
Currency translation adjustments, net of tax benefit (provision) of $54, $0, $(680) and $0, respectively	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-3.63M	USD	1 Quarter
Currency translation adjustments, net of tax benefit (provision) of $54, $0, $(680) and $0, respectively	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$1.84M	USD	3 Qtrs
Currency translation adjustments, net of tax benefit (provision) of $54, $0, $(680) and $0, respectively	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-12.41M	USD	3 Qtrs
Currency translation adjustments, net of tax benefit (provision) of $54, $0, $(680) and $0, respectively	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-272.00K	USD	1 Quarter
Tax (benefit) provision on reclassification adjustment for (gains) losses on derivative financial instruments	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax`	$-684.00K	USD	1 Quarter
Tax benefit of amortization of benefit plan costs	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax`	$-142.00K	USD	1 Quarter
Tax benefit of amortization of benefit plan costs	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax`	$-425.00K	USD	3 Qtrs
Tax benefit of amortization of benefit plan costs	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax`	$-139.00K	USD	1 Quarter
Tax benefit of amortization of benefit plan costs	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax`	$-497.00K	USD	3 Qtrs
Unrealized (losses) gains arising during the period, net of tax benefit (provision) of $20, $803, $(332) and $1,581, respectively	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax`	$954.00K	USD	3 Qtrs
Unrealized (losses) gains arising during the period, net of tax benefit (provision) of $20, $803, $(332) and $1,581, respectively	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax`	$-58.00K	USD	1 Quarter
Unrealized (losses) gains arising during the period, net of tax benefit (provision) of $20, $803, $(332) and $1,581, respectively	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax`	$-2.31M	USD	1 Quarter
Tax benefit (provision) of unrealized gains	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax`	$-358.00K	USD	3 Qtrs
Tax benefit (provision) of unrealized gains	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax`	$-344.00K	USD	1 Quarter
Tax benefit (provision) of unrealized gains	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax`	$744.00K	USD	3 Qtrs
Tax benefit (provision) of unrealized gains	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax`	$219.00K	USD	1 Quarter
Unrealized (losses) gains arising during the period, net of tax benefit (provision) of $20, $803, $(332) and $1,581, respectively	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax`	$-4.53M	USD	3 Qtrs
Tax provision on reclassification adjustment for gain on investment	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax`	$16.00K	USD	3 Qtrs
Tax provision on reclassification adjustment for gain on investment	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax`	$5.00K	USD	1 Quarter
Tax provision on reclassification adjustment for gain on investment	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax`	$4.00K	USD	1 Quarter
Reclassification adjustment for losses (gains) included in net income, net of tax (benefit) provision of $(45), $(684), $240 and $(1,254), respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$694.00K	USD	3 Qtrs
Reclassification adjustment for losses (gains) included in net income, net of tax (benefit) provision of $(45), $(684), $240 and $(1,254), respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$-3.55M	USD	3 Qtrs
Reclassification adjustment for losses (gains) included in net income, net of tax (benefit) provision of $(45), $(684), $240 and $(1,254), respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$-1.98M	USD	1 Quarter
Tax provision on reclassification adjustment for gain on investment	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax`	$69.00K	USD	3 Qtrs
Reclassification adjustment for losses (gains) included in net income, net of tax (benefit) provision of $(45), $(684), $240 and $(1,254), respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$-129.00K	USD	1 Quarter
Amortization of benefit plan costs, net of tax benefit of $(142), $(139), $(425) and $(497), respectively	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$267.00K	USD	1 Quarter
Amortization of benefit plan costs, net of tax benefit of $(142), $(139), $(425) and $(497), respectively	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$797.00K	USD	3 Qtrs
Amortization of benefit plan costs, net of tax benefit of $(142), $(139), $(425) and $(497), respectively	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$269.00K	USD	1 Quarter
Amortization of benefit plan costs, net of tax benefit of $(142), $(139), $(425) and $(497), respectively	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$929.00K	USD	3 Qtrs
Unrealized gains (losses) arising during the period, net of tax (provision) benefit of $(219), $344, $(744) and $358, respectively	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$407.00K	USD	1 Quarter
Unrealized gains (losses) arising during the period, net of tax (provision) benefit of $(219), $344, $(744) and $358, respectively	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$-664.00K	USD	3 Qtrs
Unrealized gains (losses) arising during the period, net of tax (provision) benefit of $(219), $344, $(744) and $358, respectively	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$1.38M	USD	3 Qtrs
Unrealized gains (losses) arising during the period, net of tax (provision) benefit of $(219), $344, $(744) and $358, respectively	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$-638.00K	USD	1 Quarter
Reclassification adjustment for gains included in net income, net of tax provision of $4, $5, $16 and $69, respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax`	$8.00K	USD	1 Quarter
Reclassification adjustment for gains included in net income, net of tax provision of $4, $5, $16 and $69, respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax`	$31.00K	USD	3 Qtrs
Reclassification adjustment for gains included in net income, net of tax provision of $4, $5, $16 and $69, respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax`	$121.00K	USD	3 Qtrs
Reclassification adjustment for gains included in net income, net of tax provision of $4, $5, $16 and $69, respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax`	$6.00K	USD	1 Quarter
Other Comprehensive Income (Loss)	`OtherComprehensiveIncomeLossNetOfTax`	$-13.25M	USD	3 Qtrs
Other Comprehensive Income (Loss)	`OtherComprehensiveIncomeLossNetOfTax`	$4.25M	USD	3 Qtrs
Other Comprehensive Income (Loss)	`OtherComprehensiveIncomeLossNetOfTax`	$465.00K	USD	1 Quarter
Other Comprehensive Income (Loss)	`OtherComprehensiveIncomeLossNetOfTax`	$-4.34M	USD	1 Quarter
Total Comprehensive Income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$118.51M	USD	3 Qtrs
Total Comprehensive Income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$151.40M	USD	3 Qtrs
Total Comprehensive Income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$99.69M	USD	1 Quarter
Total Comprehensive Income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$41.11M	USD	1 Quarter
Comprehensive (Income) Loss Attributable to Noncontrolling Interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$164.00K	USD	1 Quarter
Comprehensive (Income) Loss Attributable to Noncontrolling Interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$145.00K	USD	1 Quarter
Comprehensive (Income) Loss Attributable to Noncontrolling Interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-199.00K	USD	3 Qtrs
Comprehensive (Income) Loss Attributable to Noncontrolling Interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$373.00K	USD	3 Qtrs
Comprehensive Income Attributable to BWX Technologies, Inc.	`ComprehensiveIncomeNetOfTax`	$151.02M	USD	3 Qtrs
Comprehensive Income Attributable to BWX Technologies, Inc.	`ComprehensiveIncomeNetOfTax`	$40.97M	USD	1 Quarter
Comprehensive Income Attributable to BWX Technologies, Inc.	`ComprehensiveIncomeNetOfTax`	$99.53M	USD	1 Quarter
Comprehensive Income Attributable to BWX Technologies, Inc.	`ComprehensiveIncomeNetOfTax`	$118.71M	USD	3 Qtrs

Data is extracted from SEC EDGAR XBRL filings. Values shown are as reported in the filing.