BCC


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

Table of contents



us-gaap:CommonStockValue

us-gaap:CommonStockSharesIssued
us-gaap:StatementEquityComponents

us-gaap:CommonStockSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted
us-gaap:ExtinguishmentOfDebt
us-gaap:RetirementPlanType

us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:AwardType

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
us-gaap:CostOfGoodsAndServicesSold

us-gaap:CostsAndExpenses

us-gaap:GainsLossesOnExtinguishmentOfDebt
us-gaap:ExtinguishmentOfDebt

us-gaap:GeneralAndAdministrativeExpense

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxesPaidNet

us-gaap:InterestExpense

us-gaap:InterestPaidNet

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic
us-gaap:StatementEquityComponents

us-gaap:NonoperatingIncomeExpense

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

us-gaap:ProfitLoss

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

us-gaap:Revenues

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

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:AssetsCurrent

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:AccountsReceivableNetCurrent

us-gaap:InventoryNet

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:Goodwill
us-gaap:StatementBusinessSegments

us-gaap:IntangibleAssetsNetExcludingGoodwill
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent

us-gaap:AccruedIncomeTaxesCurrent

us-gaap:DividendsPayableCurrent

us-gaap:LiabilitiesCurrent

us-gaap:OperatingLeaseLiabilityCurrent
us-gaap:BalanceSheetLocation

us-gaap:OtherLiabilitiesCurrent

us-gaap:LongTermDebtNoncurrent
us-gaap:DebtInstrument

us-gaap:DeferredFinanceCostsNoncurrentNet

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:StockIssuedDuringPeriodValueNewIssues
us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DepreciationDepletionAndAmortization

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:ProfitLoss

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt
us-gaap:DebtInstrument
us-gaap:DebtInstrument, us-gaap:SubsequentEventType

us-gaap:PaymentsOfDividendsCommonStock
us-gaap:DebtInstrument, us-gaap:SubsequentEventType
us-gaap:DebtInstrumentInterestRateStatedPercentage

us-gaap:EffectiveIncomeTaxRateContinuingOperations
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxAssetsNet

us-gaap:UnrecognizedTaxBenefits

bcc:CommonStockDividendsPerShareSupplementalDeclared

bcc:CommonStockDividendsPerShareSupplementalPaid
us-gaap:ExtinguishmentOfDebt
bcc:DebtExtinguishmentPremiumsPaid
us-gaap:DebtInstrument
bcc:DebtInstrumentInterestRateDuringPeriodWithPatronageCredits

bcc:Depreciationandamortizationincludingdeferredfinancingcostsandother

bcc:DisposalGroupNotDiscontinuedOperationLossGainonWritedownExcludingSeverance
us-gaap:StatementBusinessSegments
bcc:IntersegmentEWPSalesVolumesAsPercentagetoTotalEWPSalesVolumes
us-gaap:AwardType
bcc:SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsPerformanceTrueupWeightedAverageGrantDateFairValue

bcc:StrandedTaxEffectOfPensionPlanTermination

bcc:SupplementalDividendsDeclaredPerCommonShare

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation
us-gaap:StatementEquityComponents

us-gaap:CommonStockDividendsPerShareCashPaid

us-gaap:CommonStockDividendsPerShareDeclared
us-gaap:SubsequentEventType
us-gaap:MajorCustomers, us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType
us-gaap:ConcentrationRiskPercentage1
us-gaap:DebtInstrument
us-gaap:DebtInstrumentInterestRateDuringPeriod

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses
us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets

us-gaap:DefinedBenefitPlanInterestCost
us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost
us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1
us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailments1
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanServiceCost

us-gaap:DisposalGroupNotDiscontinuedOperationLossGainOnWriteDown

us-gaap:DividendsCommonStockCash
us-gaap:StatementEquityComponents

us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
us-gaap:ExtinguishmentOfDebt
us-gaap:ExtinguishmentOfDebtAmount

us-gaap:FinanceLeaseInterestExpense

us-gaap:FinanceLeaseInterestPaymentOnLiability

us-gaap:FinanceLeasePrincipalPayments

us-gaap:FinanceLeaseRightOfUseAssetAmortization

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncreaseDecreaseInReceivables

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:InvestmentIncomeInterest

us-gaap:LeaseCost

us-gaap:NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeasePayments

us-gaap:OtherComprehensiveIncomeFinalizationOfPensionAndNonPensionPostretirementPlanValuationTax

us-gaap:OtherComprehensiveIncomeLossFinalizationOfPensionAndNonPensionPostretirementPlanValuationBeforeTax

us-gaap:OtherComprehensiveIncomeLossFinalizationOfPensionAndNonPensionPostretirementPlanValuationNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax

us-gaap:OtherComprehensiveIncomeLossTaxPortionAttributableToParent1

us-gaap:OtherNoncashIncomeExpense

us-gaap:OtherOperatingIncomeExpenseNet
us-gaap:IncomeStatementLocation, us-gaap:RestructuringCostAndReserve
us-gaap:OtherRestructuringCosts
us-gaap:RestructuringCostAndReserve, us-gaap:StatementBusinessSegments

us-gaap:PaymentsOfDebtIssuanceCosts

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PensionContributions
us-gaap:RetirementPlanType

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment
us-gaap:ConsolidatedEntities
us-gaap:RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:RestructuringCostAndReserve
us-gaap:RestructuringReserveAcceleratedDepreciation
us-gaap:RestructuringCostAndReserve, us-gaap:StatementBusinessSegments
us-gaap:ConsolidatedEntities
us-gaap:RevenueFromRelatedParties
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability

us-gaap:SellingExpense
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue

us-gaap:ShortTermLeaseCost
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesNewIssues

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised
us-gaap:StatementEquityComponents

us-gaap:StockholdersEquityOther
us-gaap:StatementEquityComponents

us-gaap:SubleaseIncome

us-gaap:UnrealizedGainLossOnDerivatives

us-gaap:VariableLeaseCost
us-gaap:ExtinguishmentOfDebt
us-gaap:WriteOffOfDeferredDebtIssuanceCost

bcc:CustomerRebatesAndAllowances

bcc:DeferredTaxAssetsLeasingArrangements

bcc:EmployeeRelatedLiabilitiesNoncurrent

bcc:FinanceLeaseLiabilityToBePaidAfterYearFour

bcc:LesseeOperatingLeaseLiabilityToBePaidAfterYearFour

bcc:Logs

bcc:NumberOfCollectiveBargainingAgreementsSetToExpireWithinOneYear
us-gaap:RetirementPlanName
bcc:Numberofemployeesinmultiemployerplans

bcc:Timberdeposits

bcc:VendorRebatesAndAllowances

dei:EntityCommonStockSharesOutstanding

dei:EntityNumberOfEmployees
us-gaap:ConcentrationRiskByBenchmark

us-gaap:AccountsPayableRelatedPartiesCurrent

us-gaap:AccountsPayableTradeCurrent

us-gaap:AccountsReceivableRelatedPartiesCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AssetRetirementObligation

us-gaap:CapitalizedComputerSoftwareNet
us-gaap:CashAndCashEquivalents, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:CashAndCashEquivalentsFairValueDisclosure
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentCarryingAmount
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentFaceAmount
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
us-gaap:BalanceSheetLocation
us-gaap:DeferredCompensationArrangementWithIndividualRecordedLiability

us-gaap:DeferredIncomeTaxAssetsNet

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredTaxAssetsInventory

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsForeign

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssets

us-gaap:DeferredTaxLiabilitiesLeasingArrangements

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax

us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheet

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate

us-gaap:DefinedBenefitPlanBenefitObligation

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo

us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear

us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsRemainderOfFiscalYear
us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanFundedStatusOfPlan
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeFixedInterestRate

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:FinanceLeaseLiability

us-gaap:FinanceLeaseLiabilityCurrent
us-gaap:BalanceSheetLocation

us-gaap:FinanceLeaseLiabilityNoncurrent

us-gaap:FinanceLeaseLiabilityPaymentsDue

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo

us-gaap:FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount

us-gaap:FinanceLeaseRightOfUseAsset

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FiniteLivedIntangibleAssetsGross

us-gaap:IntangibleAssetsGrossExcludingGoodwill

us-gaap:InterestPayableCurrent
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:HedgingDesignation
us-gaap:InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:HedgingDesignation
us-gaap:InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue

us-gaap:InventoryFinishedGoodsAndWorkInProcessNetOfReserves

us-gaap:InventoryRawMaterialsAndSuppliesNetOfReserves

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear
us-gaap:DebtInstrument
us-gaap:LettersOfCreditOutstandingAmount

us-gaap:LiabilitiesOtherThanLongtermDebtNoncurrent
us-gaap:DebtInstrument
us-gaap:LineOfCreditFacilityCurrentBorrowingCapacity
us-gaap:DebtInstrument
us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:NontradeReceivablesCurrent
us-gaap:DebtInstrument, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:NotesPayableFairValueDisclosure

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLeasesFutureMinimumPaymentsDue
us-gaap:ConsolidatedEntities, us-gaap:StatementGeographical
us-gaap:OperatingLossCarryforwards

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities

us-gaap:SelfInsuranceReserveCurrent

us-gaap:SelfInsuranceReserveNoncurrent
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
us-gaap:IncomeTaxAuthority
us-gaap:TaxCreditCarryforwardAmount

us-gaap:TreasuryStockCommonShares
us-gaap:StatementEquityComponents

us-gaap:TreasuryStockCommonValue

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
us-gaap:UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchased
us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount

Plots across concepts


IncomeStatement
Comprehensive Income Net Of Tax
Expenses
Allocated Share Based Compensation Expense
Balance Sheet
Intangible Assets Net Excluding Goodwill
Assets
Operating Lease Right Of Use Asset
Current Assets
Prepaid Expense And Other Assets Current
NonCurrent Assets
Other Assets Noncurrent
PropertyPlantAndEquipmentNet
Property Plant And Equipment Net
Liabilities
Operating Lease Liability
Current Liabilities
Operating Lease Liability Current
Noncurrent Liabilities
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
Stockholders Equity
Accumulated Other Comprehensive Income Loss Net Of Tax
Per Share
Common Stock Dividends Per Share Cash Paid
CashFlow
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInOperatingActivities
Share Based Compensation
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInFinancingActivities
Net Cash Provided By Used In Financing Activities
Shares
Common Stock Shares Outstanding
OperatingLeaseLiability
Operating Lease Liability Current
NonoperatingIncomeExpense
Nonoperating Income Expense
AccountsReceivable
Allowance For Doubtful Accounts Receivable Current

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:CommonStockValue ██████████████████▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▁0.4470.4470.4460.4460.4460.4460.4440.4430.4430.4430.4410.4410.4410.440.4370.4370.4370.4370.4350.4350.4350.4350.4340.4340.4340.4340.4330.4330.4330.4330.4320.4320.4320.4320.297NANANA
us-gaap:CommonStockSharesIssued ██▇▇▇▇▆▆▆▆▅▅▅▅▃▃▃▃▂▂▂▂▂▂▂▂▁▁▁▁▁▁44.69844.69844.56844.56844.56444.56444.35277844.34344.34244.34144.0758444.07644.05844.0443.74780543.72743.70543.70343.51964743.51843.51843.51743.4126643.41143.443.39543.28220143.27443.27143.26943.22941243.229412NANA29.7NANANA
us-gaap:CommonStockSharesOutstanding NANA39.201226NANANA38.985705NANANA38.708767NANANA38.580732NANANA38.352574NANANA38.825687NANANA39.418139NANANA39.3653539.3653543.22941243.22941229.7NANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding █▁39.68839.63NA39.52639.38739.405NA39.29239.19939.203NA39.46139.40339.396NA39.13939.00238.901NA39.1238.97238.88NA39.2439.639.622NA39.48139.46339.452NA40.6443.23337.569NA29.729.729.7
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic █▁39.44239.355NA39.31539.31239.163NA39.08739.08738.884NA38.99838.98138.778NA38.6638.64338.5NA38.81438.81438.853NA39.12739.49439.498NA39.42339.4239.372NA40.62543.22937.569NA29.729.729.7
us-gaap:EarningsPerShareBasic █▅▃▄▃▃▃▃▃▃▁▃▃▃▃▃▃▃▂▃▃▂▂▃▃▂▃▃▃▂▃▃▃▄▂▃▃▂7.673.790.662.620.850.310.370.70.710.29-1.850.361.070.960.490.820.570.260.110.260.50.130.060000000000000050.560.510.190.39999999999999990.820.670.140.260000000000000230.390.242.150.049999999999999820.790.510.06
us-gaap:EarningsPerShareDiluted █▅▃▄▃▃▃▃▃▃▁▃▃▃▃▃▃▃▂▃▃▂▂▃▃▃▃▃▃▂▃▃▃▄▂▃▃▂7.623.760.662.610.850.310.370.690.710.29-1.850.351.060.940.490.810.570.260.110.260.490.130.070000000000000060.560.510.190.39999999999999990.820.670.140.260000000000000230.390.242.150.049999999999999820.790.510.06
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,bcc:BuildingMaterialsDistribution█▅▄▄▃▃▂▃▃▂▂▃▃▂▂▃▂▁▁▂▂▁2172.7441634.7771330.0781437.6831134.261049.997986.9691145.6211097.421907.708922.2341159.3041213.783992.381931.7751045.646980.706815.683770.907889.0850.0717.3NANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,bcc:WoodProducts█▄▃▃▁▂▁▂▂▂▂▄▄▄▂▃▃▂▁▂▂▁594.569432.335358.661363.674281.505320.061296.286325.102334.256319.523307.124402.672425.483397.991330.906366.92350.277325.657289.715340.9346.4303.5NANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
 TTM Greenblatt ROC _ _█▅▄▄▃▃▃▃▃▃▁▃▃▃▃▃▃▂▂▃▃▂▂▃▃▂▃▃▃▂▂▃▃▃▂409.775205.26199.1158.57251.7725.54724.844.89845.13221.654-84.330.45574.05651.80421.656.00842.44921.094-3.031.30737.86713.4057.740.4437.35917.68828.956.19145.90414.55721.430.47922.21924.6388.6NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:AllocatedShareBasedCompensationExpense ▁▄▄▆▂▂▄▄▃▅▄▅▆▅█▆▆▄▅▅▅▂1.4112.0921.9812.4941.6711.6741.9571.9471.8692.21.9382.1622.4452.2862.7992.4882.4412.0022.1972.1142.1731.693NA1.432NANANANANANANANANANANANANANA
us-gaap:ComprehensiveIncomeNetOfTax █▅▄▄▃▃▃▃▃▃▁▃▃▃▃▃▃▂▃▂▃▂▂▃▃▂▂▃▃▂▄▃▃▄▂▃▃▂302.553149.15274.655103.34333.73612.41511.14728.1427.68511.357-68.61119.46861.00737.66324.66631.93222.40610.26312.96810.3419.5225.427-3.82222.61532.9618.911-30.49732.28226.4145.56171.51717.31711.83782.245-5.03825.36817.0473.735
us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization █▅▃▄▂▂▁▂▂▁▁▃1864.5231450.4341233.1821261.6971048.902992.27939.3751078.9241049.655897.822940.8781163.02NANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService,us-gaap:StatementBusinessSegments us-gaap:ShippingAndHandling,bcc:BuildingMaterialsDistribution█▇▅█▆▄▅▇▅▂▄▅▄▁▃▃49.746.543.049.244.240.741.946.943.436.539.442.840.833.637.937.9NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CostsAndExpenses █▆▅▅▄▄▃▄▄▃▄▅▅▄▃▄▃▃▃▃▃▂▂▃▃▂▂▃▃▂▂▂▂▂▂▂▂▁2033.3861616.0551373.0911430.7411190.991144.9871076.9381224.6261184.9491020.4321150.0821308.0571334.0761131.0371070.3631170.6361096.49953.349922.5341035.9071005.906867.29868.833951.14918.038792.215833.149927.128915.283752.623776.923847.5830.076720.24685.975736.464712.755580.737
us-gaap:GainsLossesOnExtinguishmentOfDebt NANA0.0-13.968NANANANANANANANANANA0.00.0NANA-3.0-9.525NANA0.00.0NANANANANANANANANANANANANANA
 us-gaap:GainsLossesOnExtinguishmentOfDebt us-gaap:ExtinguishmentOfDebt bcc:A5.625SeniorNotesDue2024NANANA-14.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:GeneralAndAdministrativeExpense ▅█▅█▅▄▅▅▄▄▄▄▅▄▄▄▄▃▃▃▄▄▃▂▂▂▃▃▂▂▂▃▁▁▂▂▂▁17.98825.26217.73726.0618.75516.08419.00818.60316.78616.67516.05716.89119.97715.88617.45516.47615.56513.57214.55414.36715.61216.05214.05411.34512.01812.00812.72613.17311.92510.66512.32512.86710.25110.04611.212.18510.6899.048
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest █▅▄▄▃▃▃▃▃▃▁▂▃▃▃▃▃▃▂▃▃▂▂▃▃▂▃▃▃▂▃▃▃▃▂▃▃▂403.582200.60487.359137.82544.9216.20719.35236.82137.46914.589-93.43213.03455.6646.8417.26449.93735.30115.086-10.04615.50329.9637.8811.98934.63631.86712.1923.15750.41840.7049.02615.74825.46217.20919.7291.34223.60715.1251.729
us-gaap:IncomeTaxExpenseBenefit █▆▆▅▄▄▄▄▄▄▃▄▄▄▄▄▄▄▃▄▄▄▄▄▄▄▄▄▄▄▄▄▄▁▄▄▄▄101.02651.44861.35834.63311.3344.0074.7059.659.7513.2-21.186-0.81413.8359.79-1.85818.27613.1475.066-14.1415.52210.7352.931-0.33912.62911.6374.5737.41618.13314.2863.4615.929.6026.797-61.1070.0640.1040.0780.061
us-gaap:IncomeTaxesPaidNet █▂▃▃▂▂▂▂▂▁▂▂▂▁▂▂▂▂▂▂▂▁▂▂▂▁▂▂▂▂▂▂▂▂▂▂154.51.039.826.43.65.35.73.50.4-11.00.17.918.5-12.020.812.82.40.18.17.50.5-9.45.60.61.7-7.221.215.13.50.54.95.112.60.10.00.0NANA
us-gaap:InterestExpense ▅▄▅▇▆▆▆▆▆▆▆▆▆▅▅▅▆▅█▇▆▄▄▄▃▃▃▃▃▃▃▂▁▁█▁▁▁6.3475.8756.1677.0026.6336.4216.5966.5326.4866.4376.6666.5856.586.3626.226.2956.4916.3647.3287.1356.4275.8025.7315.7295.5915.4815.5045.5145.5195.5125.585.1744.7814.8917.2864.844.8184.813
us-gaap:InterestPaidNet ▂▇▂▇▂█▂█▂█▂█▂█▂█▂█▄▄█▂▇▂▇▂▇▂▇▂▇▁▇▂▇▂▆▂0.98.71.09.70.810.71.411.20.710.81.411.10.910.71.010.61.110.84.85.010.60.610.00.59.80.39.80.39.80.39.9-0.78.70.59.40.38.10.3
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic █▅▃▄▃▃▃▃▃▃▁▃▃▃▃▃▃▃▂▃▃▂▂▃▃▂▃▃▃▂▃▃▃▄302.556149.15626.0103.19233.58612.214.627.17127.71811.389-72.213.84841.82537.0519.131.66122.15410.024.19.98119.2284.952.322.00720.237.61715.732.326.45.69.815.910.480.8NANANANA
us-gaap:NonoperatingIncomeExpense ▇█▅▁▇▆█▆▇▇▆▂▂██▇▇▇▇▃▆▇▇▇██▇▇█▇▇███▇███-6.193-4.657-11.781-20.747-6.85-9.34-5.423-8.077-7.663-7.065-9.155-17.421-18.396-4.964-4.338-6.071-7.148-6.008-7.045-15.804-7.904-5.524-5.713-5.804-5.492-5.498-5.74-5.773-5.2-5.531-5.673-5.017-5.01-4.909-7.263-4.525-5.02-4.52
us-gaap:OperatingIncomeLoss █▅▄▄▃▃▃▃▃▃▁▃▃▃▃▃▃▂▂▃▃▂▂▃▃▂▃▃▃▂▂▃▃▃▂▃▂▂409.775205.26199.1158.57251.7725.54724.844.89845.13221.654-84.330.45574.05651.80421.656.00842.44921.094-3.031.30737.86713.4057.740.4437.35917.68828.956.19145.90414.55721.430.47922.21924.6388.628.13220.1456.249
us-gaap:ProfitLoss █▅▃▄▃▃▃▃▃▃▁▃▃▃▃▃▃▃302.556149.15626.001103.19233.58612.214.64727.17127.71811.389-72.24613.84841.82537.0519.12231.66122.15410.02NANANANANANANANANANANANANANANANANANANANA
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax █▆▄▅▃▃▃▄▃▃▃▄▄▃▃▃▃▂▂▃▃▂▂▃▂▂▂▂▂▂▂▂▂▂▁▂▂▁2443.1611821.3161472.21589.3131242.761170.5341101.71269.5241230.0811042.0861065.81338.5121408.1321182.8411092.01226.6441138.939974.443919.51067.2141043.773880.695876.5991.58955.397809.903862.0983.319961.187767.18798.3877.979852.295744.878694.6764.596732.9586.986
us-gaap:Revenues █▆▄▅▃▃▃▄▃▃▃▄▄▃▃▃▃▂▂▃▃▂▂▃▂▂▂▂▂▂▂▂▂▂▁▂▂▁2443.1611821.3161472.21589.3131242.761170.5341101.71269.51230.11042.11065.81338.5121408.1321182.8411092.01226.6441138.939974.443919.51067.2141043.773880.695876.5991.58955.397809.903862.0983.319961.187767.18798.3877.979852.295744.878694.6764.596732.9586.986
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:Assets █▇▅▆▅▅▄▅▄▄▄▅▅▄▄▄▄▄▃▄▄▃▃▃▃▃▂▃▂▂▂▂▂▂▁2647.442278.7371965.7182059.8361841.0751755.3671693.3511785.9231732.8111687.0471581.2481771.6341850.4521708.8521607.1931630.551596.0891513.3681439.1971638.8051503.4881471.3731248.6061332.1711318.4441256.7921220.4851241.0991203.5651154.5071104.1861217.9591194.6151209.797836.398NANANA
us-gaap:LiabilitiesAndStockholdersEquity █▇▅▆▅▅▄▅▄▄▄▅▅▄▄▄▄▄▃▄▄▃▃▃▃▃▂▃▂▂▂▂▂▂▁2647.442278.7371965.7182059.8361841.0751755.3671693.3511785.9231732.8111687.0471581.2481771.6341850.4521708.8521607.1931630.551596.0891513.3681439.1971638.8051503.4881471.3731248.6061332.1711318.4441256.7921220.4851241.0991203.5651154.5071104.1861217.9591194.6151209.797836.398NANANA
us-gaap:StockholdersEquity █▇▆▅▅▅▅▅▅▅▅▅▅▅▅▄▄▄▄▄▄▄▄▄▄▄▃▄▃▃▃▃▃▃▁1215.71995.261850.799778.136739.708708.271701.33731.566705.021679.017672.59747.762768.188707.052674.549649.313614.302589.45580.004572.474560.019538.323534.67536.981530.601501.943492.388521.025486.809458.924452.481379.958461.962449.43397.764NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:AssetsCurrent █▆▅▅▄▄▃▄▄▃▃▄▄▃▃▃▃▂▂▃▃▂▂▃▃▂▂▂▂▂▂▂▃▃▁2007.431632.861308.8551413.5191193.1431105.391022.7641125.131073.2671032.974985.7781104.6411171.1861033.06932.572967.303929.259839.754760.459987.263855.31818.895785.57882.244881.853813.97773.624819.078793.266741.717687.705769.568845.385857.862527.457NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue █▆▅▆▅▃▄▄▃▂▃▃▃▂▃▂▂▁▂▂▂▁▃▃▃▂▂▂▂▁▂▂▃▃▁▃▂▂653.767456.982405.382503.935361.436214.992285.237306.443202.407136.204191.671181.342210.011134.684177.14172.185104.71343.569103.978131.18496.08981.187184.496212.784194.927134.516163.549169.974129.91985.985118.249157.019232.667233.54754.507224.418174.075164.441
us-gaap:AccountsReceivableNetCurrent █▇▅▅▄▄▂▃▄▃▂▄▄▄▃▄▄▃▂▃▃▃▂▂▃▂▂▂▂▂▁▂▂▂▁592.953540.197375.865425.585350.673327.254215.894295.585316.698292.761214.338312.659360.765339.299246.452315.336312.368292.541199.191263.199278.704278.189187.138231.413236.515213.702172.314212.801218.94200.101152.24203.935205.722205.575134.743NANANA
us-gaap:InventoryNet █▆▄▃▃▅▄▄▄▅▅▅▅▅▄▃▄▄▃▃▃▃▂▂▃▃▂▂▂▃▂▂▂▂▁727.205611.7503.48454.327456.129536.314497.596492.588524.451573.86533.049559.443572.606538.723476.673459.864490.711482.366433.451451.056461.998440.563384.857404.615415.114432.467394.461398.871410.565421.059383.359369.18368.35387.103325.806NANANA
us-gaap:PrepaidExpenseAndOtherAssetsCurrent ▄▂▂▄▃▃▂▃▄▄▇█▃▂▅▂▂▂▃▂▂▂▄▁▂▁▃▂▂▂▂▂▂▂▁16.30811.3048.8617.36814.71613.9578.28514.15617.74519.10931.81835.17813.38510.61622.58210.20911.6558.90812.3819.84210.7559.40617.1537.14310.1897.60214.8578.8558.7279.7077.8558.99711.8518.2795.521NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:PropertyPlantAndEquipmentGross ███▇▇▇▇▇▇▇▇▇▇▇▇▆▆▆▆▆▅▅▄▃▃▃▃▃▂▂▂▂▁▁▁1192.5911176.9461169.641139.691124.1571117.381107.2571079.711070.9611052.111064.3391076.3411094.7881082.1261059.5331032.3661017.9651008.291998.865971.05949.635934.065771.146743.032721.476699.778691.693673.943655.656649.104641.17625.679525.589517.514514.434NANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment ███▇▇▇▆▆▆▆▆▅▅▅▅▄▄▄▄▃▃▃▃▃▂▂▂▂▂▂▁▁▁▁▁735.3720.879708.184692.36677.384661.874630.308615.337606.866591.46577.115523.675532.763513.872493.741477.169461.481446.943430.163413.837396.859381.283368.48357.461347.463335.498323.565311.443300.298291.197280.185270.588264.28256.293248.51NANANA
us-gaap:PropertyPlantAndEquipmentNet ▅▅▆▅▅▅▆▆▆▆▆███████████▄▄▄▃▃▃▃▃▃▃▁▁▁457.291456.067461.456447.33446.773455.506476.949464.373464.095460.65487.224552.666562.025568.254565.792555.197556.484561.348568.702557.213552.776552.782402.666385.571374.013364.28368.128362.5355.358357.907360.985355.091261.309261.221265.924NANANA
us-gaap:Goodwill █████████████▇▇▇▇▇▇▇▇▇▂▂▂▂▂▂▂▂▂▂▁▁▁60.38260.38260.38260.38260.38260.38260.38260.38260.34259.15959.15959.40960.45455.43355.43355.43355.43355.43355.43355.43355.43356.00921.82321.82321.82321.82321.82321.82321.82321.82321.82320.47712.1712.1712.17NANANA
us-gaap:IntangibleAssetsNetExcludingGoodwill ▆▆▇▇▇▇███▇▇▇▇▅▆▆▆▆▆▆▆▆▂▂▂▂▂▂▂▂▂▂▁▁▁15.96216.26816.57416.8817.18617.49217.79718.10318.40916.59716.85117.10417.35714.88115.06615.2615.44615.37315.54715.7215.89316.06710.0910.11310.13710.1610.18310.20710.2310.25310.27710.38.98.98.9NANANA
 us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass us-gaap:CustomerRelationshipsNANA7.674NANANA8.897NANANA7.951NANANA6.166NANANA6.6476.82NANA1.19NANANANANANANANANANANANANANANA
us-gaap:OperatingLeaseRightOfUseAsset ▇▇▇███████▁57.6560.06562.44763.23164.67664.49664.22865.57165.98967.4930.0NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent ▁▂▂▂▂▂▃▃▂▃▅█▇██▇▆▇█▅▅▅▅▅▅▄▃▃▃▃▃▂▂▂▃5.8496.9977.266.8976.9827.6099.1948.1217.3239.22511.45715.27215.00415.83915.76314.15113.46314.98215.31511.63111.8311.71311.70111.62610.8519.8739.0758.7348.7498.218.0367.2527.4867.0488.164NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:AccruedIncomeTaxesCurrent ▂█▁▂▁15.4660.6778.10116.6067.391NA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:DividendsPayableCurrent 78.662NANA62.722NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LiabilitiesCurrent █▆▄▆▄▃▃▃▃▃▃▄▄▃▃▃▃▃▂▄▂▂▁▂▂▂▁▂▂▂▁▂▁▂▁854.257696.514524.002676.388485.287438.936384.992444.75424.106406.89369.825467.896519.86432.63381.561426.925428.659374.89312.864478.247361.133345.757258.65332.745332.743294.329255.19319.232306.67286.207239.017301.815272.822301.111236.187NANANA
us-gaap:OperatingLeaseLiabilityCurrent █▁10.14510.133NA9.175NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesCurrent █▅▅▆▄▄▄▅▅▄▄▅▅▄▃▄▄▂▂▃▃▂▂▂▂▁▁▂▂▁▁▂▁▁▁123.61284.76180.17292.33570.1471.1269.77280.99677.25670.29863.50977.95380.30663.7855.78668.4662.64140.97142.33949.63350.78635.94140.07846.73839.57327.833.28640.01134.83430.58633.07640.79330.87532.69229.043NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:LongTermDebtNoncurrent ▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇███▃▃▃▁▁444.21444.001443.792443.583440.178439.915440.544440.265439.986439.707439.428439.149438.87438.591438.312438.033438.2437.901437.629467.232464.586474.356344.589351.259351.312301.364301.415NANA301.565301.613326.694250.0250.0275.0NANANA
us-gaap:DeferredFinanceCostsNoncurrentNet ▃▃▄▄▂▂▁▁▂▂▃▃▃▄▄▅▄▅▅█▄▄▄▅▅▄▅▅▆▆▇▇▅▅▅5.795.9996.2086.4174.8225.0854.4564.7355.0145.2935.5725.8516.136.4096.6886.9676.87.0997.3719.3126.5096.7946.6166.9297.1996.8437.1497.4537.7538.0518.3348.4377.2797.4417.562NANANA
us-gaap:DeferredIncomeTaxLiabilitiesNet ▁▄▅▆▇█▇█▇▅▅▇▆▄▄7.37815.78318.26324.27525.33328.12826.69429.03824.43920.39219.21826.87823.1517.62916.454NANANA6.339NANANANANANANANANANANANANANANANANANANA
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent NANA4.52NANANA22.532NANANA21.38NANANA60.555NANANA69.948NANANA82.107NANANA146.861NANANA85.354NANANA191.189NANANA
us-gaap:OtherLiabilitiesNoncurrent ▂▂▂▂▂▂▁▁▁▁██▇▇▃▃▃▃▃▅▄▃▂▅▃▂▂▂▂▁▁▂▁▁▁15.94515.50615.30316.03217.63515.87812.75712.93213.72114.09138.90440.46436.24135.68220.87820.30820.26619.53519.19727.47824.13619.25917.34227.63519.00514.7715.27418.17816.96414.68614.53915.14614.44714.08414.336NANANA
us-gaap:OperatingLeaseLiabilityNoncurrent ▇▇▇███████▁50.96753.43756.00157.49458.91358.36758.02959.59160.28961.9020.0NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo ▁▁█▂12.05512.05513.02412.236NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree ▁▁█▇11.17111.17112.07311.945NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour ▁▁██9.4289.42811.18911.19NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA9.448NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA25.545NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:StockholdersEquity █▇▆▅▅▅▅▅▅▅▅▅▅▅▅▄▄▄▄▄▄▄▄▄▄▄▃▄▃▃▃▃▃▃▁1215.71995.261850.799778.136739.708708.271701.33731.566705.021679.017672.59747.762768.188707.052674.549649.313614.302589.45580.004572.474560.019538.323534.67536.981530.601501.943492.388521.025486.809458.924452.481379.958461.962449.43397.764NANANA
us-gaap:CommonStockValue ██████████████████▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▁0.4470.4470.4460.4460.4460.4460.4440.4430.4430.4430.4410.4410.4410.440.4370.4370.4370.4370.4350.4350.4350.4350.4340.4340.4340.4340.4330.4330.4330.4330.4320.4320.4320.4320.297NANANA
us-gaap:AdditionalPaidInCapitalCommonStock ████████████████▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▁538.841537.431538.006536.025533.406531.735533.345531.119529.147527.283528.654526.716524.099521.18523.55520.22517.141514.695515.41513.212511.097508.923508.066506.555505.188503.382502.739500.879498.945497.474496.593495.587494.908494.216256.927NANANA
us-gaap:RetainedEarningsAccumulatedDeficit █▆▅▅▅▄▄▄▄▄▄▅▅▅▄▄▄▄▄▄▄▃▃▃▃▃▃▃▂▂▂▂▂▂▁816.416597.374452.334430.306394.648365.032356.698385.661362.057337.884330.056405.871434.534395.5361.243344.881313.22291.066281.15277.055267.074247.846242.896240.568218.561198.331190.714174.973142.688116.27110.705100.87785.01774.605-38.231NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ███▅▅▅▅▅▅▅▅▅▅▄▄▃▃▃▃▃▃▃▃▃▃▂▂▅▅▅▅▁▁▁▁▁▁▁-1.085-1.082-1.078-49.732-49.883-50.033-50.248-46.748-47.717-47.684-47.652-51.287-56.907-76.089-76.702-82.246-82.517-82.769-83.012-91.885-92.244-92.538-93.015-86.865-87.473-100.204-101.498-55.26-55.257-55.253-55.249-116.938-118.395-119.82-121.229-114.913-116.778-118.778
us-gaap:StockIssuedDuringPeriodValueNewIssues NA0.001NANANA0.002NA0.00.00.002NA0.00.0010.003NANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents us-gaap:CommonStockNA0.001NANANA0.002NA0.00.00.002NA0.00.0010.003NANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue ▁█1.4112.092NA2.4941.6711.674NA1.9471.8692.2NA2.1622.4452.286NANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities █▄▂▇▆▁▄▆▅▁▃▃▅▂▃▄▄▁218.92872.2510.745175.495160.743-42.46750.897127.898103.811-36.95943.7931.485110.095-21.75934.43185.65872.564-41.086NANANANANANANANANA58.77353.275-23.9511.3567.97.919-53.74212.73660.08914.744-9.961
us-gaap:NetCashProvidedByUsedInInvestingActivities ▆▇▁▆█▆▂▅▁█▄▅▁▇▃▆█▆-17.837-13.165-32.285-17.988-9.983-18.46-29.277-20.177-33.906-10.705-24.855-18.819-32.404-13.179-27.241-18.26-11.361-16.35NANANANANANANANANA-18.791-9.344-7.958-16.288-116.906-8.681-4.805-9.565-6.706-5.11-8.053
us-gaap:NetCashProvidedByUsedInFinancingActivities █▇▁▆█▇▄██▇▇▄█▇████-4.306-7.486-67.013-15.008-4.316-9.318-42.826-3.685-3.702-7.803-8.606-41.335-2.364-7.518-2.2350.074-0.059-2.973NANANANANANANANANA0.0730.003-0.356-25.218-26.642-0.118237.587-175.61-3.040.00.0
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect █▅▁▇▇▂▃▆▅▂196.78551.6-98.553142.499146.444-70.245-21.206104.03666.203-55.467NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:DeferredIncomeTaxExpenseBenefit ▅▆█▆▆▆▆▆▆▆▅▆▆▆▆▆▆▆▅▆▆▆▇▇▆▆▆▆▆▆▆▆▆▁▆▆▆▆-8.237-2.24429.957-0.959-2.6981.197-0.9834.3794.3161.313-8.848-3.8-2.2171.1252.0981.4773.261.282-14.8313.1072.4521.44910.16113.5356.7790.4088.792-0.8082.0780.6435.4951.2191.704-68.0180.00.00.00.0
us-gaap:DepreciationDepletionAndAmortization ▂▂▂▂▂▄▂▂▂▂█▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁20.4219.53919.90920.02919.89935.33220.50120.96919.45419.21776.54923.88124.29622.11121.74819.68619.60119.34419.59819.45918.55215.23814.46114.24913.28113.58713.43413.20312.48212.3211.8338.9628.7668.4778.4898.4618.3388.119
us-gaap:IncreaseDecreaseInInventories ██▆▄▁▅▄▃▂▅▃▄▅▆▄▃▄▆▃▃▅▅▃▃▃▅▄▃▃▅▄▄▃▆▄▄▄▅116.786108.2249.153-1.802-80.14739.0455.008-31.86-52.80739.483-23.883-0.97827.00162.0516.809-30.8478.34548.915-17.605-10.94220.93838.366-19.758-10.499-17.35338.006-4.41-11.694-10.49437.714.518-6.104-18.75361.2977.229-0.5550.53734.617
us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet ▂▅▃▆▃▅▄▆▇▃▃▃▆▂▄▂▄▆▃▄▁▃▇▇▄▇██▅▇▆▁▆▇▅▁▃▅-2.6460.756-1.2662.077-1.3920.172-0.271.2962.758-1.835-1.718-1.6461.91-2.919-0.581-2.095-0.3161.604-1.535-0.354-3.467-1.4882.3752.828-0.3852.3393.9513.5260.9053.0511.835-3.6842.0742.4720.408-3.651-1.7980.764
us-gaap:NetCashProvidedByUsedInOperatingActivities █▄▂▇▆▁▄▆▅▁▃▃▅▂▃▄▄▁218.92872.2510.745175.495160.743-42.46750.897127.898103.811-36.95943.7931.485110.095-21.75934.43185.65872.564-41.086NANANANANANANANANA58.77353.275-23.9511.3567.97.919-53.74212.73660.08914.744-9.961
us-gaap:ProfitLoss █▅▃▄▃▃▃▃▃▃▁▃▃▃▃▃▃▃302.556149.15626.001103.19233.58612.214.64727.17127.71811.389-72.24613.84841.82537.0519.12231.66122.15410.02NANANANANANANANANANANANANANANANANANANANA
us-gaap:ShareBasedCompensation ▅▆▆▇▅▅▆▆▆▇▆▆▇▇█▇▇▆▆▆▆▅▅▅▅▄▅▆▅▃▄▃▃▂▁▁1.4112.0921.9812.4941.6711.6741.9571.9471.8692.21.9382.1622.4452.2862.7992.4882.4412.0022.1972.1142.1731.6931.4951.4321.6931.2051.731.8761.4680.8421.0070.7890.830.2430.00.0NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▆▇▁▆█▆▂▅▁█▄▅▁▇▃▆█▆-17.837-13.165-32.285-17.988-9.983-18.46-29.277-20.177-33.906-10.705-24.855-18.819-32.404-13.179-27.241-18.26-11.361-16.35NANANANANANANANANA-18.791-9.344-7.958-16.288-116.906-8.681-4.805-9.565-6.706-5.11-8.053
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▄▃█▄▂▄▇▅▄▃█▅▄▃▇▄▃▄▇▅▅▄█▆▅▃▅▅▂▃▄▄▂▁▂▂▁▁18.20113.30132.43518.14510.28618.56329.47120.42518.47714.34732.28219.37815.05513.27227.3918.50912.54917.00228.15720.32519.6415.46130.82825.26518.81512.61820.35718.8899.43212.53915.81615.8938.7265.3169.7046.736.2254.727
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities █▇▁▆█▇▄██▇▇▄█▇████-4.306-7.486-67.013-15.008-4.316-9.318-42.826-3.685-3.702-7.803-8.606-41.335-2.364-7.518-2.2350.074-0.059-2.973NANANANANANANANANA0.0730.003-0.356-25.218-26.642-0.118237.587-175.61-3.040.00.0
us-gaap:ProceedsFromIssuanceOfLongTermDebt NANA0.0400.0NANA0.00.05.50.00.00.04.72.80.044.0216.8149.62.8482.3222.7130.00.00.050.00.00.00.044.613.00.075.00.055.0300.00.00.00.0
us-gaap:RepaymentsOfLongTermDebt NANA0.0405.774NANA0.00.05.50.00.00.04.72.80.044.0216.8149.6151.975369.396232.70.00.00.00.00.00.00.044.613.025.010.00.080.0244.560.00.00.0
 us-gaap:RepaymentsOfLongTermDebt us-gaap:DebtInstrument bcc:TermLoanDue2026NANANANANANANANANANANANANANANANANANA30.0NANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:DebtInstrument,us-gaap:SubsequentEventType bcc:TermLoanDue2026,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PaymentsOfDividendsCommonStock ▁▁█▁▁▁▆▁▁▁▁▅▁▁▁▁▁▁3.9334.4466.6423.9913.9174.64542.8843.5083.5094.0533.50241.6322.7232.7582.7010.00.00.0NANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument,us-gaap:SubsequentEventType bcc:A4875SeniorNotesDue2030,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value447000.0447000.0446000.0446000.0446000.0446000.0444000.0443000.0443000.0443000.0441000.0441000.0441000.0440000.0437000.0437000.0437000.0437000.0435000.0435000.0435000.0435000.0434000.0434000.0434000.0434000.0433000.0433000.0433000.0433000.0432000.0432000.0432000.0432000.0297000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesIssued


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value444444444444444444444444444443434343434343434343434343434343434329
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStockSharesIssued us-gaap:StatementEquityComponents

us-gaap:CommonStock


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value444444444444444444444444444443434343432929
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStockSharesOutstanding


Common
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value393838383838393939434329
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value3939393939393939393939393938393838393939393939404337292929
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value3939393939393938383838383838383838393939393939404337292929
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value7.673.790.662.620.850.310.370.70.710.29-1.850.361.070.960.490.820.570.260.110.260.50.130.060.560.510.190.40.820.670.140.260.390.242.150.050.790.510.06
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value7.623.760.662.610.850.310.370.690.710.29-1.850.351.060.940.490.810.570.260.110.260.490.130.070.560.510.190.40.820.670.140.260.390.242.150.050.790.510.06
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EarningsPerShareDiluted us-gaap:ExtinguishmentOfDebt

bcc:A5.625SeniorNotesDue2024


Earnings
Period End2020-09-30
Value-0.27
Percentage of EarningsPerShareDiluted-10.3

us-gaap:EarningsPerShareDiluted us-gaap:RetirementPlanType

bcc:StrandedTaxEffectsOfPlanTermination


Earnings
Period End2020-12-31
Value-0.98
Percentage of EarningsPerShareDiluted-148.5

us-gaap:PensionPlansDefinedBenefit


Earnings
Period End2020-12-312019-09-302018-09-302018-06-30
Value-0.12-0.03-0.21-0.23
Percentage of EarningsPerShareDiluted-18.2-4.3-60.0-21.7

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:AllocatedShareBasedCompensationExpense


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-30
Value1411000.02092000.01981000.02494000.01671000.01674000.01957000.01947000.01869000.02200000.01938000.02162000.02445000.02286000.02799000.02488000.02441000.02002000.02197000.02114000.02173000.01693000.01432000.0
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.10.10.20.10.10.20.20.20.20.20.20.20.20.30.20.20.20.20.20.20.20.1

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:AwardType

us-gaap:PerformanceShares


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-30
Value745000.01089000.0991000.01503000.0691000.0610000.0825000.0800000.0736000.0979000.0742000.0945000.01231000.01087000.01611000.01297000.01094000.0921000.01159000.01081000.01168000.0706000.0505000.0
Percentage of AllocatedShareBasedCompensationExpense52.852.150.060.341.436.442.241.139.444.538.343.750.347.657.652.144.846.052.851.153.841.735.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:PerformanceShares0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RestrictedStockUnitsRSU


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-30
Value666000.01003000.0990000.0991000.0980000.01064000.01132000.01147000.01133000.01221000.01196000.01217000.01214000.01199000.01188000.01191000.01347000.01081000.01038000.01033000.01005000.0906000.0800000.0
Percentage of AllocatedShareBasedCompensationExpense47.247.950.039.758.663.657.858.960.655.561.756.349.752.442.447.955.254.047.248.946.253.555.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RestrictedStockUnitsRSU0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value30214974103331211282711-68.611196137243122101210195.427-3.82222328.911-30.49732265.56171171182-5.03825173.735
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.48.25.16.52.71.11.02.22.31.1-6.41.54.33.22.32.62.01.11.41.01.90.6-0.42.33.41.1-3.53.32.70.79.02.01.411.0-0.73.32.30.6

Cost Of Goods And Service Excluding Depreciation Depletion And Amortization

us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization

us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value18641450123312611048992939107810498979401163
Percentage of CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax76.379.683.879.484.484.885.385.085.386.288.386.9

Cost Of Goods And Services Sold

us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

us-gaap:CostOfGoodsAndServicesSold

us-gaap:ShippingAndHandling, bcc:BuildingMaterialsDistribution


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value49464349444041464336394240333737
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.02.62.93.13.63.53.83.73.53.53.73.22.92.83.53.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ShippingAndHandling bcc:BuildingMaterialsDistribution0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Costs And Expenses

us-gaap:CostsAndExpenses

us-gaap:CostsAndExpenses


Costs
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value2033161613731430119011441076122411841020115013081334113110701170109695392210351005867868951918792833927915752776847830720685736712580
Percentage of CostsAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax83.288.793.390.095.897.897.896.596.397.9107.997.794.795.698.095.496.397.8100.397.196.498.599.195.996.197.896.794.395.298.197.396.597.496.798.896.397.398.9

Gains Losses On Extinguishment Of Debt

us-gaap:GainsLossesOnExtinguishmentOfDebt

us-gaap:GainsLossesOnExtinguishmentOfDebt


Gains
Period End2020-12-312020-09-302017-12-312017-09-302016-12-312016-09-302015-12-312015-09-30
Value0-13968000.000-3000000.0-9525000.000
Percentage of GainsLossesOnExtinguishmentOfDebt0.0100.00.00.0100.0100.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0-0.90.00.0-0.3-0.90.00.0

us-gaap:GainsLossesOnExtinguishmentOfDebt us-gaap:ExtinguishmentOfDebt

bcc:A5.625SeniorNotesDue2024


Gains
Period End2020-09-30
Value-14000000.0
Percentage of GainsLossesOnExtinguishmentOfDebt100.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bcc:A5.625SeniorNotesDue20240.0

General And Administrative Expense

us-gaap:GeneralAndAdministrativeExpense

us-gaap:GeneralAndAdministrativeExpense


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value172517261816191816161616191517161513141415161411121212131110121210101112109.048
Percentage of GeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.71.41.21.61.51.41.71.51.41.61.51.31.41.31.61.31.41.41.61.31.51.81.61.11.31.51.51.31.21.41.51.51.21.31.61.61.51.5

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value40320087137441619363714-93.43213554617493515-10.04615297.8811.9893431122350409.026152517191.34223151.729
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax16.511.05.98.73.61.41.82.93.01.4-8.81.04.04.01.64.13.11.5-1.11.52.90.90.23.53.31.52.75.14.21.22.02.92.02.60.23.12.10.3

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value101516134114.0074.7059.659.7513.2-21.186-0.814139.79-1.85818135.066-14.1415.522102.931-0.33912114.5737.41618143.4615.929.6026.797-61.1070.0640.1040.0780.061
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.12.84.22.20.90.30.40.80.80.3-2.0-0.11.00.8-0.21.51.20.5-1.50.51.00.3-0.01.31.20.60.91.81.50.50.71.10.8-8.20.00.00.00.0

Income Taxes Paid Net

us-gaap:IncomeTaxesPaidNet

us-gaap:IncomeTaxesPaidNet


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value1541.039263.65.35.73.50.4-11.00.17.918-12.020122.40.18.17.50.5-9.45.60.61.7-7.221153.50.54.95.1120.10.00.0
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.30.12.71.70.30.50.50.30.0-1.10.00.61.3-1.01.91.00.20.00.90.70.0-1.10.60.10.2-0.92.51.50.40.10.60.61.50.00.00.0

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value6.3475.8756.1677.0026.6336.4216.5966.5326.4866.4376.6666.5856.586.3626.226.2956.4916.3647.3287.1356.4275.8025.7315.7295.5915.4815.5045.5145.5195.5125.585.1744.7814.8917.2864.844.8184.813
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.30.40.40.50.50.60.50.50.60.60.50.50.50.60.50.60.70.80.70.60.70.70.60.60.70.60.60.60.70.70.60.60.71.00.60.70.8

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value0.98.71.09.70.8101.4110.7101.4110.9101.0101.1104.85.0100.610.00.59.80.39.80.39.80.39.9-0.78.70.59.40.38.10.3
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.50.10.60.10.90.10.90.11.00.10.80.10.90.10.90.11.10.50.51.00.11.10.11.00.01.10.01.00.01.2-0.11.00.11.40.01.10.1

Net Income Loss Available To Common Stockholders Basic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value30214926103331214272711-72.2134137193122104.19.981194.952.322207.6171532265.69.8151080
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.48.21.86.52.71.01.32.12.31.1-6.81.03.03.11.72.61.91.00.40.91.80.60.32.22.10.91.83.32.70.71.21.81.210.8

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value3021491033312272711134137
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.48.26.52.71.02.12.31.11.03.03.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.0

Nonoperating Income Expense

us-gaap:NonoperatingIncomeExpense

us-gaap:NonoperatingIncomeExpense


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-6193000.0-4657000.0-11781000.0-20747000.0-6850000.0-9340000.0-5423000.0-8077000.0-7663000.0-7065000.0-9155000.0-17421000.0-18396000.0-4964000.0-4338000.0-6071000.0-7148000.0-6008000.0-7045000.0-15804000.0-7904000.0-5524000.0-5713000.0-5804000.0-5492000.0-5498000.0-5740000.0-5773000.0-5200000.0-5531000.0-5673000.0-5017000.0-5010000.0-4909000.0-7263000.0-4525000.0-5020000.0-4520000.0
Percentage of NonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.3-0.3-0.8-1.3-0.6-0.8-0.5-0.6-0.6-0.7-0.9-1.3-1.3-0.4-0.4-0.5-0.6-0.6-0.8-1.5-0.8-0.6-0.7-0.6-0.6-0.7-0.7-0.6-0.5-0.7-0.7-0.6-0.6-0.7-1.0-0.6-0.7-0.8

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value40920599158512524444521-84.330745121564221-3.03137137.740371728564514213022248.628206.249
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax16.811.36.710.04.22.22.33.53.72.1-7.92.35.34.42.04.63.72.2-0.32.93.61.50.94.13.92.23.45.74.81.92.73.52.63.31.23.72.71.1

us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-10.324-12.01-8.789-15.364-8.514-7.518-9.541-9.364-7.576-7.493-6.628-6.978-10.139-6.705-8.124-7.398-7.455-6.259-10.626-6.672-7.559-5.853
Percentage of OperatingIncomeLoss-2.5-5.9-8.9-9.7-16.4-29.4-38.5-20.9-16.8-34.67.9-22.9-13.7-12.9-37.6-13.2-17.6-29.7354.2-21.3-20.0-43.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.4-0.7-0.6-1.0-0.7-0.6-0.9-0.7-0.6-0.7-0.6-0.5-0.7-0.6-0.7-0.6-0.7-0.6-1.2-0.6-0.7-0.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value420217107173603334545229-77.649378458296349277.625374519
Percentage of OperatingIncomeLoss102.5105.9108.9109.7116.4129.4138.4120.9116.8134.692.1122.9113.7112.9137.6113.2117.6129.7-254.2121.3120.0143.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax17.211.97.310.94.92.83.14.34.32.8-7.32.86.04.92.75.24.42.80.83.64.42.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:OperatingSegments, bcc:BuildingMaterialsDistribution


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value206120671074329263833178.9052347322239341915262913
Percentage of OperatingIncomeLoss50.458.667.768.083.5114.7105.986.174.980.9-10.677.264.462.5106.170.381.394.6-515.184.476.999.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.46.64.66.83.52.52.43.02.71.70.81.83.42.72.13.23.02.01.72.52.81.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bcc:BuildingMaterialsDistribution9.57.40.07.53.82.80.03.43.11.90.02.03.93.30.03.83.52.40.03.03.41.9

us-gaap:OperatingSegments, bcc:WoodProducts


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value213974066173.7638.062151811-86.5541336266.81924157.388-7.82911165.885
Percentage of OperatingIncomeLoss52.247.341.241.633.014.732.534.741.953.7102.745.749.350.431.642.936.335.0261.036.943.143.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.75.32.84.21.40.30.71.21.51.1-8.11.02.62.20.62.01.40.8-0.91.11.60.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bcc:WoodProducts36.022.40.018.26.11.20.04.85.73.60.03.58.66.60.06.54.42.30.03.44.71.9

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value30214926103331214272711-72.24613413719312210
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.48.21.86.52.71.01.32.12.31.1-6.81.03.03.11.82.61.91.0

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value2443182114721589124211701101126912301042106513381408118210921226113897491910671043880876991955809862983961767798877852744694764732586
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems

us-gaap:IntersegmentElimination


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value-324.152-245.796-216.508-212.044-173.005-199.524-181.542-201.199-201.596-185.145-163.553-223.464-231.134-207.531-170.716-185.922-192.044-166.897-140.707-162.8-152.7-140.2-123.1-148.0-146.6-122.3-529.90.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-13.3-13.5-14.7-13.3-13.9-17.0-16.5-15.8-16.4-17.8-15.3-16.7-16.4-17.5-15.6-15.2-16.9-17.1-15.3-15.3-14.6-15.9-14.0-14.9-15.3-15.1-61.50.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-13.3-13.5-14.7-13.3-13.9-17.0-16.5-15.8-16.4-17.8-15.3-16.7-16.4-17.5-15.6-15.2-16.9-17.1-15.3-15.3-14.6-15.9-14.0-14.9-15.3-15.1-61.50.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:OperatingSegments, bcc:BuildingMaterialsDistribution


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value21721634133014371134104998611451097907922115912139929311045980815770889850717707799762622669773758585615721681581552605580
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax88.989.890.390.591.389.789.690.289.287.186.586.686.283.985.385.286.183.783.883.381.481.480.780.679.876.977.778.778.976.377.182.280.078.079.679.279.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax88.989.890.390.591.389.789.690.289.287.186.586.686.283.985.385.286.183.783.883.381.481.480.780.679.876.977.778.778.976.377.182.280.078.079.679.279.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bcc:BuildingMaterialsDistribution100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, bcc:WoodProducts


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value594432358363281320296325334319307402425397330366350325289340346303292340339309722210202181182156170163141159152
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax24.323.724.422.922.727.326.925.627.230.728.830.130.233.630.329.930.833.431.531.933.234.533.334.335.638.283.821.421.123.722.917.820.022.020.420.820.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax24.323.724.422.922.727.326.925.627.230.728.830.130.233.630.329.930.833.431.531.933.234.533.334.335.638.283.821.421.123.722.917.820.022.020.420.820.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bcc:WoodProducts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

bcc:Byproducts, bcc:WoodProducts


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value191716161520181818201823222212131313
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.81.01.11.01.31.81.71.41.51.91.71.81.61.91.11.11.21.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.81.01.11.01.31.81.71.41.51.91.71.81.61.91.11.11.21.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bcc:Byproducts bcc:WoodProducts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bcc:CommodityProductLine, bcc:BuildingMaterialsDistribution


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1308906660718490440408467450398422554602490469505453379
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax53.649.844.945.239.437.637.136.936.638.239.641.442.841.543.041.239.838.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax53.649.844.945.239.437.637.136.936.638.239.641.442.841.543.041.239.838.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bcc:CommodityProductLine bcc:BuildingMaterialsDistribution100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bcc:EngineeredWoodProducts, bcc:BuildingMaterialsDistribution


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value297255235235196212205223217185172218218186164185185160
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.214.116.014.815.818.118.617.617.717.816.216.315.515.815.015.116.316.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.214.116.014.815.818.118.617.617.717.816.216.315.515.815.015.116.316.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bcc:EngineeredWoodProducts bcc:BuildingMaterialsDistribution100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bcc:GeneralLine, bcc:BuildingMaterialsDistribution


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value566472433483448397373454429323327385392315297354341275
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax23.226.029.530.436.133.933.935.834.931.030.728.827.926.627.328.930.028.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax23.226.029.530.436.133.933.935.834.931.030.728.827.926.627.328.930.028.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bcc:GeneralLine bcc:BuildingMaterialsDistribution100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bcc:Ijoists, bcc:WoodProducts


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value3.14.8-3.13.32.64.53.94.98.05.33.08.57.99.98.57.97.611
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.3-0.20.20.20.40.40.40.70.50.30.60.60.80.80.60.71.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.3-0.20.20.20.40.40.40.70.50.30.60.60.80.80.60.71.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bcc:Ijoists bcc:WoodProducts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bcc:LaminatedVeneerLumber, bcc:WoodProducts


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value3.76.02.84.35.36.17.77.912119.79.29.8139.3109.316
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.30.20.30.40.50.70.61.01.10.90.70.71.10.90.90.81.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.30.20.30.40.50.70.61.01.10.90.70.71.10.90.90.81.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bcc:LaminatedVeneerLumber bcc:WoodProducts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bcc:Lumber, bcc:WoodProducts


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value251816131212111314131520252421222221
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.11.01.10.81.01.11.11.11.11.31.51.51.82.11.91.92.02.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.11.01.10.81.01.11.11.11.11.31.51.51.82.11.91.92.02.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bcc:Lumber bcc:WoodProducts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bcc:OtherEngineeredWoodProducts, bcc:WoodProducts


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value12106.75.65.26.46.36.28.65.75.77.35.86.65.56.15.45.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.50.60.50.40.40.50.60.50.70.50.50.50.40.60.50.50.50.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.50.60.50.40.40.50.60.50.70.50.50.50.40.60.50.50.50.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bcc:OtherEngineeredWoodProducts bcc:WoodProducts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bcc:OtherWoodProducts, bcc:WoodProducts


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value5.15.84.23.92.26.86.98.58.6101716141511149.18.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.30.30.20.20.60.60.70.71.01.61.21.01.31.11.20.80.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.30.30.20.20.60.60.70.71.01.61.21.01.31.11.20.80.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bcc:OtherWoodProducts bcc:WoodProducts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bcc:PlywoodAndVeneer, bcc:WoodProducts


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value201122981056563596463676982968780927972
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.26.76.76.65.25.55.45.15.26.56.56.26.97.47.47.57.07.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.26.76.76.65.25.55.45.15.26.56.56.26.97.47.47.57.07.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bcc:PlywoodAndVeneer bcc:WoodProducts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementBusinessSegments

bcc:BuildingMaterialsDistribution


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value21721634133014371134105098711451097907922115912139929311045980815770889850717707799761622669773758585615721681581553605580451
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax88.989.890.390.591.389.789.690.289.287.186.586.686.283.985.385.286.183.783.883.381.481.480.780.679.776.977.678.778.976.377.182.280.078.079.679.279.276.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax88.989.890.390.591.389.789.690.289.287.186.586.686.283.985.385.286.183.783.883.381.481.480.780.679.776.977.678.778.976.377.182.280.078.079.679.279.276.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bcc:BuildingMaterialsDistribution100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bcc:WoodProducts


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value270186142151108120114123132134143179194190160181158158148178193163169192193187-212.8355351293301283280269230259241211
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.110.29.79.58.710.310.49.810.812.913.513.413.816.114.714.813.916.316.216.718.518.519.319.420.323.1-24.736.236.538.237.732.332.936.133.234.033.036.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.110.29.79.58.710.310.49.810.812.913.513.413.816.114.714.813.916.316.216.718.518.519.319.420.323.1-24.736.236.538.237.732.332.936.133.234.033.036.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bcc:WoodProducts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bcc:WoodProductsandBuildingMaterialsDistribution


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value24431821147215891242117011011269123010421065133814081182109212261138974
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bcc:WoodProductsandBuildingMaterialsDistribution100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value2443182114721589124211701101126912301042106513381408118210921226113897491910671043880876991955809862983961767798877852744694764732586
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value2647227819652059184117551693178517321687158117711850170816071630159615131439163815031471124813321318125612201241120311541104121711941209836896
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value403289191188109
Percentage of Assets20.517.112.111.77.6
Percentage of Assets20.517.112.111.77.6
Percentage of Assets us-gaap:CorporateNonSegment100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:StatementBusinessSegments

bcc:BuildingMaterialsDistribution


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value957768699635548506483456415366
Percentage of Assets48.745.444.239.538.140.539.641.349.740.9
Percentage of Assets48.745.444.239.538.140.539.641.349.740.9
Percentage of Assets bcc:BuildingMaterialsDistribution100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bcc:WoodProducts


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value605635690783781556533514366351
Percentage of Assets30.837.543.748.854.344.543.746.643.839.2
Percentage of Assets30.837.543.748.854.344.543.746.643.839.2
Percentage of Assets bcc:WoodProducts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value2647227819652059184117551693178517321687158117711850170816071630159615131439163815031471124813321318125612201241120311541104121711941209836
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-31
Value121599585077873970870173170567967274776870767464961458958057256053853453653050149252148645845237946144997282409
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets45.943.743.337.840.240.341.441.040.740.242.542.241.541.442.039.838.538.940.334.937.236.642.840.340.239.940.342.040.439.841.031.238.737.111.731.50.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value-1.085-1.082-1.078-49.732-49.883-50.033-50.248-46.748-47.717-47.684-47.652-51.287-56.907-76.089-76.702-82.246-82.517-82.769-83.012-93.015-101.498-55.249-121.229-120.845-40.195
Percentage of StockholdersEquity-0.1-0.1-0.1-6.4-6.7-7.1-7.2-6.4-6.8-7.0-7.1-6.9-7.4-10.8-11.4-12.7-13.4-14.0-14.3-17.4-20.6-12.2-124.0-42.8-9.8
Percentage of Assets-0.0-0.0-0.1-2.4-2.7-2.9-3.0-2.6-2.8-2.8-3.0-2.9-3.1-4.5-4.8-5.0-5.2-5.5-5.8-7.4-8.3-5.0-14.5-13.50.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value538537538536533531533531529527528526524521523515508502496256482482
Percentage of StockholdersEquity44.354.063.268.972.175.176.072.675.177.778.670.468.273.777.688.995.0102.1109.7262.8170.9117.9
Percentage of Assets20.423.627.426.029.030.331.529.730.531.333.429.728.330.532.635.840.741.245.030.753.90.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value0.4470.4470.4460.4460.4460.4460.4440.4430.4430.4430.4410.4410.4410.440.4370.4350.4340.4330.4320.2970.2970.297
Percentage of StockholdersEquity0.00.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.30.10.1
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value816597452430394365356385362337330405434395361281242190110-38.231-79.727-33.364
Percentage of StockholdersEquity67.260.053.255.353.451.550.952.751.449.849.154.356.655.953.648.545.438.724.5-39.1-28.2-8.2
Percentage of Assets30.826.223.020.921.420.821.121.620.920.020.922.923.523.122.519.519.515.610.0-4.6-8.90.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStockCommon


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-31
Value-138.909-138.909-138.909-138.909-138.909-138.909-138.909-138.909-138.909-138.909-138.909-133.979-133.979-133.979-133.979-133.979-123.711-100.0
Percentage of StockholdersEquity-11.4-14.0-16.3-17.9-18.8-19.6-19.8-19.0-19.7-20.5-20.7-17.9-17.4-18.9-19.9-23.1-23.1-20.3
Percentage of Assets-5.2-6.1-7.1-6.7-7.5-7.9-8.2-7.8-8.0-8.2-8.8-7.6-7.2-7.8-8.3-9.3-9.9-8.2
Percentage of Assets us-gaap:TreasuryStockCommon0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value2007163213081413119311051022112510731032985110411711033932967929839760987855818785882881813773819793741687769845857527
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets75.871.766.668.664.863.060.463.061.961.262.362.463.360.558.059.358.255.552.860.256.955.762.966.266.964.863.466.065.964.262.363.270.870.963.1

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value6534564055033612142853062021361911812101341771721044310313196811842121941341631691298511815723223354224174164182259
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets24.720.120.624.519.612.216.817.211.78.112.110.211.37.911.010.66.62.97.28.06.45.514.816.014.810.713.413.710.87.410.712.919.519.36.50.00.00.020.30.0

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312018-01-022017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value592540375425350327215295316292214312360339247246315312292199263278278187231236213172212218200152203205205134
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets22.423.719.120.719.018.612.716.618.317.413.617.619.519.90.015.319.319.619.313.816.118.518.915.017.417.917.014.117.118.217.313.816.717.217.016.1

Inventory Net

us-gaap:InventoryNet

us-gaap:InventoryNet


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value727611503454456536497492524573533559572538476459490482433451461440384404415432394398410421383369368387325
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets27.526.825.622.124.830.629.427.630.334.033.731.630.931.529.728.230.731.930.127.530.729.930.830.431.534.432.332.134.136.534.730.330.832.039.0

Prepaid Expense And Other Assets Current

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PrepaidExpenseAndOtherAssetsCurrent


Prepaid
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value16118.861714138.285141719313513102210118.908129.842109.406177.143107.602148.8558.7279.7077.8558.997118.2795.521
Percentage of PrepaidExpenseAndOtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.50.50.80.80.80.50.81.01.12.02.00.70.61.40.60.70.60.90.60.70.61.40.50.80.61.20.70.70.80.70.71.00.70.7

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value119211761169113911241117110710791070105210641076109410821059103210171008998971949934771743721699691673655649641625525517514
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets45.051.659.555.361.163.765.460.561.862.467.360.859.263.365.963.363.866.669.459.363.263.561.855.854.755.756.754.354.556.258.151.444.042.861.5

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

bcc:BuildingandLeaseholdImprovements


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value64646463616161595850495855695552525150504948464442424241
Percentage of PropertyPlantAndEquipmentGross5.45.55.55.55.55.55.55.55.54.84.75.55.16.45.25.15.15.15.15.25.25.16.06.06.06.16.26.5
Percentage of Assets2.52.83.33.13.43.53.63.33.43.03.13.33.04.13.43.23.33.43.53.13.33.33.73.33.33.43.53.7
Percentage of Assets bcc:BuildingandLeaseholdImprovements0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

bcc:Mobileequipmentinformationtechnologyandofficefurniture


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value18217817817517116816515915515015015114514313813313012712512111711410910493
Percentage of PropertyPlantAndEquipmentGross15.315.115.215.415.315.114.914.814.514.314.214.113.313.313.012.912.812.612.612.512.312.314.214.113.5
Percentage of Assets6.97.89.18.59.39.69.88.99.08.99.58.67.98.48.68.28.28.48.77.47.87.88.87.97.7
Percentage of Assets bcc:Mobileequipmentinformationtechnologyandofficefurniture0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Building


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-31
Value15415215114414414114013813714116415916014414413913813613613512712010610410397969591
Percentage of PropertyPlantAndEquipmentGross12.912.913.012.712.912.712.612.812.813.515.514.914.713.413.613.613.613.613.613.913.412.913.814.114.413.914.014.114.3
Percentage of Assets5.86.77.77.07.98.18.37.87.98.410.49.08.78.59.08.68.79.19.58.28.58.28.57.97.97.87.97.78.3
Percentage of Assets us-gaap:Building0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ConstructionInProgress


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-31
Value2848403630353424372931252116233231293425383934311815112010
Percentage of PropertyPlantAndEquipmentGross2.44.23.53.22.73.23.12.33.52.82.92.32.01.52.23.13.12.93.52.64.04.34.54.32.62.21.63.01.6
Percentage of Assets1.12.12.11.81.72.02.11.42.11.82.01.41.21.01.42.02.01.92.41.62.52.72.82.41.41.20.91.60.9
Percentage of Assets us-gaap:ConstructionInProgress0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Land


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-31
Value4747473838383939393838394038383838383838383836363636363637
Percentage of PropertyPlantAndEquipmentGross3.94.04.03.43.43.43.53.63.73.73.73.73.73.63.63.73.83.83.94.04.14.14.85.05.15.35.35.55.8
Percentage of Assets1.82.12.41.92.12.22.32.22.32.32.52.22.22.32.42.42.42.62.72.42.62.63.02.82.82.93.03.03.4
Percentage of Assets us-gaap:Land0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MachineryAndEquipment


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-31
Value715686687681677671666658643639629641670668659635627624613600579572437420420410410393380
Percentage of PropertyPlantAndEquipmentGross60.058.358.859.860.360.160.261.060.160.859.159.661.361.862.361.561.661.961.461.861.061.356.756.658.358.759.458.359.3
Percentage of Assets27.030.135.033.136.838.339.436.937.237.939.836.236.339.141.039.039.341.342.636.638.538.935.031.631.932.733.631.734.5
Percentage of Assets us-gaap:MachineryAndEquipment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value735720708692677661630615606591577523532513493477461446430413396381368357347335323311300291280270264256248
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets27.831.636.033.636.837.737.234.535.035.136.529.628.830.130.729.328.929.529.925.326.425.929.526.826.426.726.525.125.025.225.422.222.121.229.7

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value457456461447446455476464464460487552562568565555556561568557552552402385374364368362355357360355261261265
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets17.320.023.521.724.325.928.226.026.827.330.831.230.433.335.234.034.937.139.534.036.837.632.228.928.429.030.229.229.531.032.729.221.921.631.8

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value6060606060606060605959596055555555555555555621212121212121212120121212
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.32.63.12.93.33.43.63.43.53.53.73.43.33.23.43.43.53.73.93.43.73.81.71.61.71.71.81.81.81.92.01.71.01.01.5

us-gaap:Goodwill us-gaap:StatementBusinessSegments

bcc:BuildingMaterialsDistribution


Goodwillus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-312013-09-302012-12-31
Value1111105.5935.5935.5935.5935.5935.5935.5935.5935.5935.593
Percentage of Goodwill19.519.517.910.110.110.110.110.025.625.625.627.346.0
Percentage of Assets0.60.70.70.30.40.30.40.40.40.50.50.50.7
Percentage of Assets bcc:BuildingMaterialsDistribution1.21.51.50.91.00.00.00.01.11.21.20.01.3

bcc:WoodProducts


Goodwillus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-312013-09-302012-12-31
Value4848484949494950161616146.577
Percentage of Goodwill80.580.582.189.989.989.989.990.074.474.474.472.754.0
Percentage of Assets2.52.93.13.13.53.03.33.41.31.31.51.20.8
Percentage of Assets bcc:WoodProducts8.07.67.06.46.40.00.00.02.93.03.20.01.8

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value15161616171717181816161717141515151515151516101010101010101010108.98.98.9
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.70.80.80.91.01.11.01.11.01.11.00.90.90.90.91.01.01.11.01.11.10.80.80.80.80.80.80.80.90.90.80.70.71.1

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:CustomerRelationships


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302015-12-31
Value7674000.08897000.07951000.06166000.06647000.06820000.01190000.0
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.50.50.40.50.40.1
Percentage of Assets us-gaap:CustomerRelationships0.00.00.00.00.00.00.0

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value576062636464646565670.0
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets2.22.63.23.13.53.73.83.73.84.00.0

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value5.8496.9977.266.8976.9827.6099.1948.1217.3239.2251115151515141314151111111111109.8739.0758.7348.7498.218.0367.2527.4867.0488.164
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.30.40.30.40.40.50.50.40.50.70.90.80.91.00.90.81.01.10.70.80.80.90.90.80.80.70.70.70.70.70.60.60.61.0

Accrued Income Taxes Current

us-gaap:AccruedIncomeTaxesCurrent

us-gaap:AccruedIncomeTaxesCurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value15608.101167.3910.0
Percentage of AccruedIncomeTaxesCurrent100.0100.0100.0100.0100.00.0
Percentage of Assets0.62.70.40.80.40.0

Dividends Payable Current

us-gaap:DividendsPayableCurrent

us-gaap:DividendsPayableCurrent


Dividends
Period End2021-06-302020-09-30
Value7862
Percentage of DividendsPayableCurrent100.0100.0
Percentage of Assets3.03.0

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value854696524676485438384444424406369467519432381426428374312478361345258332332294255319306286239301272301236
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets32.330.626.732.826.425.022.724.924.524.123.426.428.125.323.726.226.924.821.729.224.023.520.725.025.223.420.925.725.524.821.624.822.824.928.2

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2021-06-302021-03-312020-09-30
Value10109.175
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0
Percentage of Assets0.40.40.4

us-gaap:OperatingLeaseLiabilityCurrent us-gaap:BalanceSheetLocation

us-gaap:OtherCurrentLiabilities


Operating
Period End2020-12-31
Value9.926
Percentage of OperatingLeaseLiabilityCurrent0.0
Percentage of Assets0.5
Percentage of Assets us-gaap:OtherCurrentLiabilities0.0

Other Liabilities Current

us-gaap:OtherLiabilitiesCurrent

us-gaap:OtherLiabilitiesCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312018-01-022017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value1238480927071698077706377806357556862404249503540463927334034303340303229
Percentage of OtherLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.73.74.14.53.84.14.14.54.54.24.04.44.33.70.03.54.23.92.72.93.03.42.43.23.53.02.22.73.22.92.63.03.32.62.73.5

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent

us-gaap:LongTermDebtNoncurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value444444443443440439440440439439439439438438438438438437437467464474344351351301301301301326250250275
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets16.819.522.621.523.925.126.024.725.426.127.824.823.725.727.326.927.528.930.428.530.932.227.626.426.624.024.726.127.326.820.920.732.9

us-gaap:LongTermDebtNoncurrent us-gaap:DebtInstrument

bcc:TermLoanDue2025


Long
Period End2020-09-30
Value50
Percentage of LongTermDebtNoncurrent11.3
Percentage of Assets2.4
Percentage of Assets bcc:TermLoanDue20250.0

Deferred Finance Costs Noncurrent Net

us-gaap:DeferredFinanceCostsNoncurrentNet

us-gaap:DeferredFinanceCostsNoncurrentNet


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value5790000.05999000.06208000.06417000.04822000.05085000.04456000.04735000.05014000.05293000.05572000.05851000.06130000.06409000.06688000.06967000.06800000.07099000.07371000.09312000.06509000.06794000.06616000.06929000.07199000.06843000.07149000.07453000.07753000.08051000.08334000.08437000.07279000.07441000.07562000.0
Percentage of DeferredFinanceCostsNoncurrentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.30.30.30.30.30.30.30.30.30.40.30.30.40.40.40.40.50.50.60.40.50.50.50.50.50.60.60.60.70.80.70.60.60.9

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxLiabilitiesNet


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value7.37815182425282629242019262317166.339
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.70.91.21.41.61.61.61.41.21.21.51.31.01.00.4

Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent


Pension
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value4.52222160698214685191
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.21.31.43.84.96.612.07.722.9

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value1515151617151212131438403635202020191927241917271914151816141415141414
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.70.80.81.00.90.80.70.80.82.52.32.02.11.31.21.31.31.31.71.61.31.42.11.41.21.31.51.41.31.31.21.21.21.7

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value505356575858585960610.0
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets1.92.32.82.83.23.33.43.33.53.70.0

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value12121312
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0100.0100.0100.0
Percentage of Assets0.50.50.70.6

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value11111211
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0100.0100.0100.0
Percentage of Assets0.40.50.60.6

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value9.4289.4281111
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0100.0100.0100.0
Percentage of Assets0.40.40.60.5

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value9448000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.5

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-31
Value25
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets1.3

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302019-06-302019-03-312019-01-01
Value616365666768697072
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.32.83.43.24.03.94.04.20.0

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value17171819
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0100.0100.0100.0
Percentage of Assets0.60.81.01.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-31
Value121599585077873970870173170567967274776870767464961458958057256053853453653050149252148645845237946144997282409
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets45.943.743.337.840.240.341.441.040.740.242.542.241.541.442.039.838.538.940.334.937.236.642.840.340.239.940.342.040.439.841.031.238.737.111.731.50.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value-1.085-1.082-1.078-49.732-49.883-50.033-50.248-46.748-47.717-47.684-47.652-51.287-56.907-76.089-76.702-82.246-82.517-82.769-83.012-93.015-101.498-55.249-121.229-120.845-40.195
Percentage of StockholdersEquity-0.1-0.1-0.1-6.4-6.7-7.1-7.2-6.4-6.8-7.0-7.1-6.9-7.4-10.8-11.4-12.7-13.4-14.0-14.3-17.4-20.6-12.2-124.0-42.8-9.8
Percentage of Assets-0.0-0.0-0.1-2.4-2.7-2.9-3.0-2.6-2.8-2.8-3.0-2.9-3.1-4.5-4.8-5.0-5.2-5.5-5.8-7.4-8.3-5.0-14.5-13.50.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value538537538536533531533531529527528526524521523515508502496256482482
Percentage of StockholdersEquity44.354.063.268.972.175.176.072.675.177.778.670.468.273.777.688.995.0102.1109.7262.8170.9117.9
Percentage of Assets20.423.627.426.029.030.331.529.730.531.333.429.728.330.532.635.840.741.245.030.753.90.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value0.4470.4470.4460.4460.4460.4460.4440.4430.4430.4430.4410.4410.4410.440.4370.4350.4340.4330.4320.2970.2970.297
Percentage of StockholdersEquity0.00.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.30.10.1
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value816597452430394365356385362337330405434395361281242190110-38.231-79.727-33.364
Percentage of StockholdersEquity67.260.053.255.353.451.550.952.751.449.849.154.356.655.953.648.545.438.724.5-39.1-28.2-8.2
Percentage of Assets30.826.223.020.921.420.821.121.620.920.020.922.923.523.122.519.519.515.610.0-4.6-8.90.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStockCommon


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-31
Value-138.909-138.909-138.909-138.909-138.909-138.909-138.909-138.909-138.909-138.909-138.909-133.979-133.979-133.979-133.979-133.979-123.711-100.0
Percentage of StockholdersEquity-11.4-14.0-16.3-17.9-18.8-19.6-19.8-19.0-19.7-20.5-20.7-17.9-17.4-18.9-19.9-23.1-23.1-20.3
Percentage of Assets-5.2-6.1-7.1-6.7-7.5-7.9-8.2-7.8-8.0-8.2-8.8-7.6-7.2-7.8-8.3-9.3-9.9-8.2
Percentage of Assets us-gaap:TreasuryStockCommon0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value447000.0447000.0446000.0446000.0446000.0446000.0444000.0443000.0443000.0443000.0441000.0441000.0441000.0440000.0437000.0437000.0437000.0437000.0435000.0435000.0435000.0435000.0434000.0434000.0434000.0434000.0433000.0433000.0433000.0433000.0432000.0432000.0432000.0432000.0297000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value538537538536533531533531529527528526524521523520517514515513511508508506505503502500498497496495494494256
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets20.423.627.426.029.030.331.529.730.531.333.429.728.330.532.631.932.434.035.831.334.034.640.738.038.340.141.240.441.543.145.040.741.440.930.7

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value8165974524303943653563853623373304054343953613443132912812772672472422402181981901741421161101008574-38.231
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets30.826.223.020.921.420.821.121.620.920.020.922.923.523.122.521.219.619.219.516.917.816.819.518.116.615.815.614.111.910.110.08.37.16.2-4.6

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value-1085000.0-1082000.0-1078000.0-49732000.0-49883000.0-50033000.0-50248000.0-46748000.0-47717000.0-47684000.0-47652000.0-51287000.0-56907000.0-76089000.0-76702000.0-82246000.0-82517000.0-82769000.0-83012000.0-91885000.0-92244000.0-92538000.0-93015000.0-86865000.0-87473000.0-100200000.0-101500000.0-55260000.0-55257000.0-55253000.0-55249000.0-116940000.0-118400000.0-119820000.0-121230000.0-114910000.0-116780000.0-118780000.0-120840000.0-40195000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.0-0.0-0.1-2.4-2.7-2.9-3.0-2.6-2.8-2.8-3.0-2.9-3.1-4.5-4.8-5.0-5.2-5.5-5.8-5.6-6.1-6.3-7.4-6.5-6.6-8.0-8.3-4.5-4.6-4.8-5.0-9.6-9.9-9.9-14.50.00.00.0-13.50.0

Stock Issued During Period Value New Issues

us-gaap:StockIssuedDuringPeriodValueNewIssues

us-gaap:StockIssuedDuringPeriodValueNewIssues


Stock
Period End2021-03-312020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value0.0010.0020.00.00.0020.00.0010.003
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.00.00.0100.00.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.0

us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents

us-gaap:CommonStock


Stock
Period End2021-03-312020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value0.0010.0020.00.00.0020.00.0010.003
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.00.00.0100.00.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.0

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

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value1411000.02092000.02494000.01671000.01674000.01947000.01869000.02200000.02162000.02445000.02286000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value1411000.02092000.02494000.01671000.01674000.01947000.01869000.02200000.02162000.02445000.02286000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value218720.745175160-42.46750127103-36.9594331110-21.759348572-41.0865853-23.9511677.919-53.742126014-9.961
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.04.00.111.012.9-3.64.610.18.4-3.54.12.47.8-1.83.27.06.4-4.26.05.5-3.11.47.70.9-7.21.87.92.0-1.7

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-17837000.0-13165000.0-32285000.0-17988000.0-9983000.0-18460000.0-29277000.0-20177000.0-33906000.0-10705000.0-24855000.0-18819000.0-32404000.0-13179000.0-27241000.0-18260000.0-11361000.0-16350000.0-18791000.0-9344000.0-7958000.0-16288000.0-116910000.0-8681000.0-4805000.0-9565000.0-6706000.0-5110000.0-8053000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.7-0.7-2.2-1.1-0.8-1.6-2.7-1.6-2.8-1.0-2.3-1.4-2.3-1.1-2.5-1.5-1.0-1.7-1.9-1.0-1.0-2.0-13.3-1.0-0.6-1.4-0.9-0.7-1.4

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-4.306-7.486-67.013-15.008-4.316-9.318-42.826-3.685-3.702-7.803-8.606-41.335-2.364-7.518-2.2350.074-0.059-2.9730.0730.003-0.356-25.218-26.642-0.118237-175.61-3.040.00.0
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.2-0.4-4.6-0.9-0.3-0.8-3.9-0.3-0.3-0.7-0.8-3.1-0.2-0.6-0.20.0-0.0-0.30.00.0-0.0-3.2-3.0-0.031.9-25.3-0.40.00.0

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value19651-98.553142146-70.245-21.20610466-55.467
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.12.8-6.79.011.8-6.0-1.98.25.4-5.3

Deferred Income Tax Expense Benefit

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DeferredIncomeTaxExpenseBenefit


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-8.237-2.24429-0.959-2.6981.197-0.9834.3794.3161.313-8.848-3.8-2.2171.1252.0981.4773.261.282-14.8313.1072.4521.44910136.7790.4088.792-0.8082.0780.6435.4951.2191.704-68.0180.00.00.00.0
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

Depreciation Depletion And Amortization

us-gaap:DepreciationDepletionAndAmortization

us-gaap:DepreciationDepletionAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value201919201935202019197623242221191919191918151414131313131212118.9628.7668.4778.4898.4618.3388.119
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Inventories

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInInventories


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value11610849-1.802-80.147395.008-31.86-52.80739-23.883-0.978276216-30.8478.34548-17.605-10.9422038-19.758-10.499-17.35338-4.41-11.694-10.4943714-6.104-18.753617.229-0.5550.53734
Percentage of IncreaseDecreaseInInventories100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Other Operating Capital Net

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-2.6460.756-1.2662.077-1.3920.172-0.271.2962.758-1.835-1.718-1.6461.91-2.919-0.581-2.095-0.3161.604-1.535-0.354-3.467-1.4882.3752.828-0.3852.3393.9513.5260.9053.0511.835-3.6842.0742.4720.408-3.651-1.7980.764
Percentage of IncreaseDecreaseInOtherOperatingCapitalNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value218720.745175160-42.46750127103-36.9594331110-21.759348572-41.0865853-23.9511677.919-53.742126014-9.961
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.04.00.111.012.9-3.64.610.18.4-3.54.12.47.8-1.83.27.06.4-4.26.05.5-3.11.47.70.9-7.21.87.92.0-1.7

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value30214926103331214272711-72.24613413719312210
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.48.21.86.52.71.01.32.12.31.1-6.81.03.03.11.82.61.91.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value1411000.02092000.01981000.02494000.01671000.01674000.01957000.01947000.01869000.02200000.01938000.02162000.02445000.02286000.02799000.02488000.02441000.02002000.02197000.02114000.02173000.01693000.01495000.01432000.01693000.01205000.01730000.01876000.01468000.0842000.01007000.0789000.0830000.0243000.000
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-17837000.0-13165000.0-32285000.0-17988000.0-9983000.0-18460000.0-29277000.0-20177000.0-33906000.0-10705000.0-24855000.0-18819000.0-32404000.0-13179000.0-27241000.0-18260000.0-11361000.0-16350000.0-18791000.0-9344000.0-7958000.0-16288000.0-116910000.0-8681000.0-4805000.0-9565000.0-6706000.0-5110000.0-8053000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.7-0.7-2.2-1.1-0.8-1.6-2.7-1.6-2.8-1.0-2.3-1.4-2.3-1.1-2.5-1.5-1.0-1.7-1.9-1.0-1.0-2.0-13.3-1.0-0.6-1.4-0.9-0.7-1.4

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value181332181018292018143219151327181217282019153025181220189.4321215158.7265.3169.7046.736.2254.727
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-4.306-7.486-67.013-15.008-4.316-9.318-42.826-3.685-3.702-7.803-8.606-41.335-2.364-7.518-2.2350.074-0.059-2.9730.0730.003-0.356-25.218-26.642-0.118237-175.61-3.040.00.0
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.2-0.4-4.6-0.9-0.3-0.8-3.9-0.3-0.3-0.7-0.8-3.1-0.2-0.6-0.20.0-0.0-0.30.00.0-0.0-3.2-3.0-0.031.9-25.3-0.40.00.0

Proceeds From Issuance Of Long Term Debt

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:ProceedsFromIssuanceOfLongTermDebt


Proceeds
Period End2020-12-312020-09-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value0.04000.00.05.50.00.00.04.72.80.0442161492.84822221300.00.0500.00.00.044130.0750.0553000.00.00.0
Percentage of ProceedsFromIssuanceOfLongTermDebt0.0100.00.00.0100.00.00.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.00.0100.00.00.00.0100.0100.00.0100.00.0100.0100.00.00.00.0

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt


Repayments
Period End2020-12-312020-09-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value0.04050.00.05.50.00.00.04.72.80.0442161491513692320.00.00.00.00.00.00.04413250.00.0802440.00.00.0
Percentage of RepaymentsOfLongTermDebt0.0100.00.00.0100.00.00.00.0100.0100.00.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.0100.0100.0100.00.00.0100.0100.00.00.00.0

us-gaap:RepaymentsOfLongTermDebt us-gaap:DebtInstrument

bcc:TermLoanDue2026


Repayments
Period End2020-07-312016-12-31
Value4530
Percentage of RepaymentsOfLongTermDebt0.019.7

us-gaap:RepaymentsOfLongTermDebt us-gaap:DebtInstrument, us-gaap:SubsequentEventType

bcc:TermLoanDue2026, us-gaap:SubsequentEvent


Repayments
Period End2020-07-27
Value45
Percentage of RepaymentsOfLongTermDebt0.0

Payments Of Dividends Common Stock

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsOfDividendsCommonStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value3.9334.44663.9913.9174.645423.5083.5094.0533.502412.7232.7582.7010.00.00.0
Percentage of PaymentsOfDividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

Debt Instrument Interest Rate Stated Percentage

us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument, us-gaap:SubsequentEventType

us-gaap:DebtInstrumentInterestRateStatedPercentage

bcc:A4875SeniorNotesDue2030, us-gaap:SubsequentEvent


Debt
Period End2020-07-27
Value0.04875
Percentage of DebtInstrumentInterestRateStatedPercentage100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations bcc:A4875SeniorNotesDue2030 us-gaap:SubsequentEvent0.0

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:EffectiveIncomeTaxRateContinuingOperations


Effective
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value25.025.613.825.10.2520.247-0.0020.2620.260.219-0.123-0.0620.2490.209-0.0690.3660.3720.336-0.2430.3560.3580.372-0.0130.3650.3650.375-0.0070.360.3510.3830.220.3771.627-3.097
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value2966.096622.0000125720.01186.0495.0830.0165350.000712.098375.004338.0809.0208890.01233.03909.02685.0327990.0321.0311.01921.0137610.02836.03080.0777.0121800.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod100.0100.00.00.00.0100.0100.0100.0100.0100.00.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-31
Value1018117.39
Percentage of DeferredTaxLiabilities100.0100.0100.0100.0

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet

us-gaap:DeferredTaxAssetsNet


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312013-02-04
Value6661454673659264100
Percentage of DeferredTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value1780000.01685000.01850000.02083000.02224000.0878000.0300000.00
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.00.0

bcc:CommonStockDividendsPerShareSupplementalDeclared

bcc:CommonStockDividendsPerShareSupplementalDeclared


Common
Period End2020-09-302019-12-312018-09-30
Value1.61.01.0
Percentage of CommonStockDividendsPerShareSupplementalDeclared100.0100.0100.0

bcc:CommonStockDividendsPerShareSupplementalPaid

bcc:CommonStockDividendsPerShareSupplementalPaid


Common
Period End2020-12-312019-12-312018-09-30
Value1.61.01.0
Percentage of CommonStockDividendsPerShareSupplementalPaid100.0100.0100.0

bcc:DebtExtinguishmentPremiumsPaid us-gaap:ExtinguishmentOfDebt

bcc:DebtExtinguishmentPremiumsPaid

bcc:A5.625SeniorNotesDue2024


Debt
Period End2020-09-30
Value10
Percentage of DebtExtinguishmentPremiumsPaid100.0

bcc:DebtInstrumentInterestRateDuringPeriodWithPatronageCredits us-gaap:DebtInstrument

bcc:DebtInstrumentInterestRateDuringPeriodWithPatronageCredits

bcc:ABLTermLoanDue2025


Debt
Period End2021-06-302021-03-31
Value00.9
Percentage of DebtInstrumentInterestRateDuringPeriodWithPatronageCredits0.0100.0

bcc:TermLoanDue2025


Debt
Period End2020-09-30
Value1.483
Percentage of DebtInstrumentInterestRateDuringPeriodWithPatronageCredits0.0

bcc:TermLoanDue2026


Debt
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1.78-0.0050.025-0.002-0.00100.0340.0010.0010.0020.027
Percentage of DebtInstrumentInterestRateDuringPeriodWithPatronageCredits0.00.00.00.00.00.00.00.00.00.00.0

bcc:Depreciationandamortizationincludingdeferredfinancingcostsandother

bcc:Depreciationandamortizationincludingdeferredfinancingcostsandother


Depreciationandamortizationincludingdeferredfinancingcostsandother
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value201920202035212120197724242222202019201918151414131313131212129.442
Percentage of Depreciationandamortizationincludingdeferredfinancingcostsandother100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bcc:DisposalGroupNotDiscontinuedOperationLossGainonWritedownExcludingSeverance

bcc:DisposalGroupNotDiscontinuedOperationLossGainonWritedownExcludingSeverance


Disposal
Period End2020-12-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value0.00.00.0381.4380.00.0
Percentage of DisposalGroupNotDiscontinuedOperationLossGainonWritedownExcludingSeverance0.00.0100.0100.00.00.0

bcc:IntersegmentEWPSalesVolumesAsPercentagetoTotalEWPSalesVolumes us-gaap:StatementBusinessSegments

bcc:IntersegmentEWPSalesVolumesAsPercentagetoTotalEWPSalesVolumes

bcc:WoodProducts


Intersegment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value078.0001.079.0
Percentage of IntersegmentEWPSalesVolumesAsPercentagetoTotalEWPSalesVolumes0.0100.00.00.0100.0100.0

bcc:SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsPerformanceTrueupWeightedAverageGrantDateFairValue us-gaap:AwardType

bcc:SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsPerformanceTrueupWeightedAverageGrantDateFairValue

us-gaap:PerformanceShares


Sharebased
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value036.4500029.4800043.0500027.050016.56
Percentage of SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsPerformanceTrueupWeightedAverageGrantDateFairValue0.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.0100.0

bcc:StrandedTaxEffectOfPensionPlanTermination

bcc:StrandedTaxEffectOfPensionPlanTermination


Stranded
Period End2020-12-31
Value38
Percentage of StrandedTaxEffectOfPensionPlanTermination100.0

bcc:SupplementalDividendsDeclaredPerCommonShare

bcc:SupplementalDividendsDeclaredPerCommonShare


Supplemental
Period End2020-09-28
Value1.6
Percentage of SupplementalDividendsDeclaredPerCommonShare100.0

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation


Adjustments
Period End2021-03-312020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value2729000.03309000.01000.05000.03569000.015000.03000.05117000.0
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-03-312020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value2729000.03309000.01000.05000.03569000.015000.03000.05117000.0
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStockDividendsPerShareCashPaid

us-gaap:CommonStockDividendsPerShareCashPaid


Common
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.11.70.10.11.10.090.090.090.090.070.070.070.07000
Percentage of CommonStockDividendsPerShareCashPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:CommonStockDividendsPerShareDeclared

us-gaap:CommonStockDividendsPerShareDeclared


Common
Period End2021-06-282021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-11-022018-12-312018-08-022018-09-302018-05-032018-06-302018-02-072018-03-312017-12-312017-09-302017-06-302017-03-31
Value2.02.10.10.11.70.10.11.10.090.090.090.090.090.071.070.070.070.070.070.07000
Percentage of CommonStockDividendsPerShareDeclared100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:CommonStockDividendsPerShareDeclared us-gaap:SubsequentEventType

us-gaap:SubsequentEvent


Common
Period End2021-07-292021-05-062021-02-052020-10-292020-07-302020-05-072020-02-102019-10-302019-08-012019-05-022019-02-06
Value0.10.10.10.10.10.10.10.10.090.090.09
Percentage of CommonStockDividendsPerShareDeclared0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ConcentrationRiskPercentage1 us-gaap:MajorCustomers, us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType

us-gaap:ConcentrationRiskPercentage1

bcc:CustomerOne, us-gaap:AccountsReceivable, us-gaap:CreditConcentrationRisk


Concentration
Period End2021-03-312020-03-312019-03-31
Value11.00.120.11
Percentage of ConcentrationRiskPercentage1100.0100.0100.0

bcc:CustomerTwo, us-gaap:AccountsReceivable, us-gaap:CreditConcentrationRisk


Concentration
Period End2021-03-312020-03-312019-03-31
Value17.00.130.12
Percentage of ConcentrationRiskPercentage1154.5108.3109.1

us-gaap:DebtInstrumentInterestRateDuringPeriod us-gaap:DebtInstrument

us-gaap:DebtInstrumentInterestRateDuringPeriod

bcc:ABLTermLoanDue2025


Debt
Period End2021-06-302021-03-31
Value-0.011.87
Percentage of DebtInstrumentInterestRateDuringPeriod100.0100.0

bcc:TermLoanDue2025


Debt
Period End2020-09-30
Value2.4425
Percentage of DebtInstrumentInterestRateDuringPeriod0.0

bcc:TermLoanDue2026


Debt
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
Value02.7903-0.00580.0355-0.0014-0.0008-0.00020.04380.00110.00110.00160.0348
Percentage of DebtInstrumentInterestRateDuringPeriod0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses


Defined
Period End2021-03-312020-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value5000.0-202000.06000.05000.06000.06000.0-2332000.0-2333000.0-2281000.0-2256000.0-1824000.0-1824000.0-1958000.0-2026000.0
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses us-gaap:RetirementPlanType

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-30
Value4000.0-202000.0-201000.0-202000.044000.044000.043000.0-151000.0-356000.0-821000.0-441000.0-410000.0-395000.0-584000.0
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses0.00.00.0100.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-30
Value1.3741.3721.3741.4771.4751.4741.9033.2924.5884.7434.7424.745.131
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanInterestCost

us-gaap:DefinedBenefitPlanInterestCost


Defined
Period End2021-03-312020-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value0.0241.4735.0495.054.9295.1514.6674.6674.654.6424.7844.7834.8244.843
Percentage of DefinedBenefitPlanInterestCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanInterestCost us-gaap:RetirementPlanType

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-30
Value0.0231.4741.4731.4731.7921.8091.8162.2783.3124.0114.3924.3824.3764.805
Percentage of DefinedBenefitPlanInterestCost0.00.00.0100.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value0.0190.0196.6330.4690.4680.5550.4341.7760.4510.460.79311120.4490.390.3910.3510.3320.4730.739-0.019-0.0370.7992.0820.2410.240.0790.2782.8852.672.7082.7263.2553.0043.1593.235
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost us-gaap:RetirementPlanType

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-30
Value0.0190.4690.4680.5551.7760.4510.4611120.4490.3910.3510.3320.537
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1

us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1


Defined
Period End2020-12-312020-03-312019-09-302018-09-302018-06-30
Value-6200000.0-86000.0-1300000.0-11300000.0-12000000.0
Percentage of DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1 us-gaap:RetirementPlanType

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-08-032018-09-302018-06-302017-09-302017-06-302016-09-30
Value00-86000.0-1300000.000-10000000.0-11300000.0-12003000.0000
Percentage of DefinedBenefitPlanRecognizedNetGainLossDueToSettlements10.00.0100.0100.00.00.0100.00.0100.00.00.00.0

us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailments1 us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailments1

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-09-302018-09-302018-06-30
Value-6200000.0-1300000.0-11300000.0-12000000.0
Percentage of DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailments1100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanServiceCost us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanServiceCost

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-30
Value167000.0166000.0168000.0163000.0161000.0161000.0196000.0198000.0205000.0301000.0301000.0301000.0279000.0
Percentage of DefinedBenefitPlanServiceCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DisposalGroupNotDiscontinuedOperationLossGainOnWriteDown

us-gaap:DisposalGroupNotDiscontinuedOperationLossGainOnWriteDown


Disposal
Period End2020-12-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value0.00.00.0381.6690.00.0
Percentage of DisposalGroupNotDiscontinuedOperationLossGainOnWriteDown0.00.0100.0100.00.00.0

us-gaap:DividendsCommonStockCash

us-gaap:DividendsCommonStockCash


Dividends
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value834.116673.973.8663.5673.5453.561422.7912.793
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsCommonStockCash us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Dividends
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value834.116673.973.8663.5673.5453.561422.7912.793
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate

us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate


Effective
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value21.021.0021.00.210.2100.210.210.2100.210.210.2100.350.350.350000.3500.350.350.3500.350.350.3500.350.350.35
Percentage of EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.00.00.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value400000.0500000.0500000.0700000.0400000.0400000.0500000.0500000.0400000.0600000.0500000.0500000.0600000.0600000.0-200000.01000000.0900000.0800000.0800000.0800000.0900000.0600000.0600000.0500000.0600000.0500000.0600000.0700000.0600000.0300000.0400000.0300000.0300000.0100000.0
Percentage of EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ExtinguishmentOfDebtAmount us-gaap:ExtinguishmentOfDebt

us-gaap:ExtinguishmentOfDebtAmount

bcc:A5.625SeniorNotesDue2024


Extinguishment
Period End2020-09-012020-07-272020-09-30
Value137212350
Percentage of ExtinguishmentOfDebtAmount100.0100.0100.0

us-gaap:FinanceLeaseInterestExpense

us-gaap:FinanceLeaseInterestExpense


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value591000.0592000.0612000.0615000.0559000.0485000.0494000.0479000.0465000.0461000.0
Percentage of FinanceLeaseInterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseInterestPaymentOnLiability

us-gaap:FinanceLeaseInterestPaymentOnLiability


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value591000.0586000.0612000.0615000.0559000.0485000.0457000.0479000.0465000.0461000.0
Percentage of FinanceLeaseInterestPaymentOnLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeasePrincipalPayments

us-gaap:FinanceLeasePrincipalPayments


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value372000.0380000.0371000.0345000.0327000.0264000.0212000.0202000.0188000.0181000.0
Percentage of FinanceLeasePrincipalPayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseRightOfUseAssetAmortization

us-gaap:FinanceLeaseRightOfUseAssetAmortization


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value598000.0606000.0608000.0603000.0552000.0447000.0446000.0410000.0385000.0375000.0
Percentage of FinanceLeaseRightOfUseAssetAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax


Foreign
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value147000.0154000.0556000.0265000.0409000.0-873000.0239000.0-200000.0248000.0162000.0-672000.0163000.0-172000.0-263000.0589000.090000.013000.028000.0-67000.0-40000.028000.0198000.0-84000.0-148000.041000.0-107000.0-293000.0-316000.0266000.0-89000.0-122000.069000.0-291000.0-80000.0-88000.0228000.0-289000.0186000.0
Percentage of ForeignCurrencyTransactionGainLossBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value123125-82.3941183955-60.918201529-97.735-51.2948548-39.975-6.8094865-56.6625.911085-69.663-1.9723641-46.5853.611048-53.04917-20.66157-31.82149.45158
Percentage of IncreaseDecreaseInAccountsPayableAndAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-45.31252-8.0998.50510-2.1110.2782.3743.98212-11.177-11.595-2.16520-25.3433.9883.7053.358-7.238-5.0737.96410-16.078-1.013.14111-22.6493.898.6792.314-4.2343.099-7.6536.7720.0660.096
Percentage of IncreaseDecreaseInAccruedIncomeTaxesPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value5004000.02444000.0-8508000.02652000.03784000.03205000.0-3384000.0-1257000.02890000.01883000.0-2236000.0-1625000.02412000.01949000.0-1502000.0-1571000.02084000.01876000.0-2064000.0-830000.02250000.02258000.0-1256000.0-1134000.02127000.01248000.0-1838000.0-1729000.0-1456000.04880000.0-1109000.0-899000.02139000.0384000.0-1321000.0-278000.02055000.0196000.0
Percentage of IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInReceivables

us-gaap:IncreaseDecreaseInReceivables


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value57161-46.0897621108-79.971-16.1661875-101.822-46.8071991-68.8682.8651790-61.676-14.143-1.37178-41.199-2.5042239-40.725-4.9511946-52.973-7.52.85268-36.07-6.1741642
Percentage of IncreaseDecreaseInReceivables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements


Incremental
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value246000.0275000.022000.0211000.075000.0242000.021000.0205000.0112000.0319000.0-22000.0463000.0422000.0618000.090000.0479000.0359000.0401000.041000.0306000.0158000.027000.015000.0113000.0106000.0124000.028000.058000.043000.080000.017000.015000.04000.000000
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.0

us-gaap:InvestmentIncomeInterest

us-gaap:InvestmentIncomeInterest


Investment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value51000.059000.041000.0113000.0190000.0655000.01066000.0837000.0416000.0492000.0648000.0500000.0237000.0264000.0293000.0167000.054000.033000.0154000.060000.027000.0149000.0102000.073000.058000.090000.057000.057000.053000.070000.029000.088000.062000.062000.0111000.087000.087000.0107000.0
Percentage of InvestmentIncomeInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LeaseCost

us-gaap:LeaseCost


Lease
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value6.6256.3996.4056.1536.1256.0796.0196.2565.8425.658
Percentage of LeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent

us-gaap:NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.0190.0196.4660.3020.3020.3870.2721.6130.290.2990.59711120.2440.090.09
Percentage of NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeaseCost


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value3.3633.3633.3193.3133.3613.3463.3913.4423.3673.341
Percentage of OperatingLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeasePayments

us-gaap:OperatingLeasePayments


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value3.4063.253.2743.1563.2593.3293.4823.3893.3363.301
Percentage of OperatingLeasePayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeFinalizationOfPensionAndNonPensionPostretirementPlanValuationTax

us-gaap:OtherComprehensiveIncomeFinalizationOfPensionAndNonPensionPostretirementPlanValuationTax


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value1559000.00022000.00341000.0005000.02853000.03044000.000001484000.000114000.01000.000192000.00000
Percentage of OtherComprehensiveIncomeFinalizationOfPensionAndNonPensionPostretirementPlanValuationTax100.00.00.0100.00.0100.00.00.0100.0100.0100.00.00.00.00.0100.00.00.0100.0100.00.00.0100.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossFinalizationOfPensionAndNonPensionPostretirementPlanValuationBeforeTax

us-gaap:OtherComprehensiveIncomeLossFinalizationOfPensionAndNonPensionPostretirementPlanValuationBeforeTax


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value6.1640.00.00.0860.01.3420.00.00.011120.00.00.00.03.8580.00.00.2970.00.00.00.5010.00.00.0
Percentage of OtherComprehensiveIncomeLossFinalizationOfPensionAndNonPensionPostretirementPlanValuationBeforeTax100.00.00.0100.00.0100.00.00.00.0100.0100.00.00.00.00.0100.00.00.0100.00.00.00.0100.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossFinalizationOfPensionAndNonPensionPostretirementPlanValuationNetOfTax

us-gaap:OtherComprehensiveIncomeLossFinalizationOfPensionAndNonPensionPostretirementPlanValuationNetOfTax


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value4.6050.00.00.0640.01.0010.00.0-0.0058.3998.9590.00.00.00.02.3740.00.00.183-0.0010.00.00.3090.00.00.00.0
Percentage of OtherComprehensiveIncomeLossFinalizationOfPensionAndNonPensionPostretirementPlanValuationNetOfTax100.00.00.0100.00.0100.00.00.0100.0100.0100.00.00.00.00.0100.00.00.0100.0100.00.00.0100.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-0.003-0.004480.1510.150.215-3.50.969-0.033-0.0323.6355.62190.6135.5440.2710.2520.243
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value-0.003-0.0040.1510.150.2150.969-0.033-0.0325.62190.613
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value4000.05000.0-202000.0-202000.0-201000.0-202000.044000.044000.044000.043000.0-169000.0-151000.0-356000.0-821000.0-441000.0-441000.0-410000.0-395000.0-944000.0-584000.0-478000.0-478000.0-987000.0-987000.0-1312000.0-1598000.06000.05000.06000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax


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
Value3000.04000.0-151000.0-151000.0-150000.0-151000.034000.032000.033000.032000.0-126000.0-112000.0-266000.0-613000.0-269000.0-271000.0-252000.0-243000.0-580000.0-359000.0-294000.0-294000.0-603000.0-608000.0-808000.0-985000.04000.03000.04000.04000.0-1443000.0-1443000.0-1411000.0-1395000.0-1824000.0-1824000.0-1958000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax


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
Value1000.01000.0-51000.0-51000.0-51000.0-51000.010000.012000.011000.011000.0-43000.0-39000.0-90000.0-208000.0-172000.0-170000.0-158000.0-152000.0-364000.0-225000.0-184000.0-184000.0-384000.0-379000.0-504000.0-613000.02000.02000.02000.02000.0-6131000.0890000.0870000.0-861000.0000
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossTaxPortionAttributableToParent1

us-gaap:OtherComprehensiveIncomeLossTaxPortionAttributableToParent1


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-1000.0-1000.0-35456000.051000.051000.073000.0-1186000.0329000.0-11000.0-11000.01246000.01909000.06517000.0208000.01964000.0170000.0158000.0152000.0
Percentage of OtherComprehensiveIncomeLossTaxPortionAttributableToParent1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherNoncashIncomeExpense

us-gaap:OtherNoncashIncomeExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-1013000.0-4000.036000.0-41000.0-9000.0-155000.0118000.0202000.0-16000.049000.010383000.0-9746000.0955000.096000.0-501000.0-1134000.01243000.016000.0-424000.05000.0-186000.0114000.0-16000.01231000.0105000.0517000.0-20000.0-120000.0-179000.01908000.0161000.0351000.0288000.0-11000.0-29000.031000.041000.0428000.0
Percentage of OtherNoncashIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherOperatingIncomeExpenseNet

us-gaap:OtherOperatingIncomeExpenseNet


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value281000.097000.0103000.0-71000.0170000.0-169000.0226000.0437000.0-188000.0308000.011262000.0-10870000.0956000.094000.0-512000.0-1138000.01238000.035000.0-434000.046000.0-172000.01585000.0-48000.01256000.098000.0299000.00-148000.0-163000.01900000.0162000.0350000.039000.0134000.0-496000.0-121000.0-653000.0368000.0
Percentage of OtherOperatingIncomeExpenseNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherRestructuringCosts us-gaap:IncomeStatementLocation, us-gaap:RestructuringCostAndReserve

us-gaap:OtherRestructuringCosts

bcc:Lossoncurtailmentoffacility, bcc:CurtailmentofIjoistProductionatRoxboroNCFacilityMember


Other
Period End2020-12-312020-09-302020-06-302020-03-31
Value0001700000.0
Percentage of OtherRestructuringCosts0.00.00.0100.0

us-gaap:OtherRestructuringCosts us-gaap:RestructuringCostAndReserve, us-gaap:StatementBusinessSegments

bcc:CurtailmentofIjoistProductionatRoxboroNCFacilityMember, bcc:WoodProducts


Other
Period End2020-12-312020-09-302020-06-302020-03-31
Value0001700000.0
Percentage of OtherRestructuringCosts0.00.00.0100.0

us-gaap:PaymentsOfDebtIssuanceCosts

us-gaap:PaymentsOfDebtIssuanceCosts


Payments
Period End2020-12-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value00453000.0025000.0103000.05776000.050000.0493000.0047000.0655000.0000011000.0207000.01533000.0172000.0149000.05572000.0250000.000
Percentage of PaymentsOfDebtIssuanceCosts0.00.0100.00.0100.0100.0100.0100.0100.00.0100.0100.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.00.00.0

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value02729000.00003309000.0-1000.01000.05000.03569000.0015000.03000.05117000.01000.0017000.02884000.0000383000.0097000.001063000.0
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation0.0100.00.00.00.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.00.0100.0100.00.00.00.0100.00.0100.00.0100.0

us-gaap:PensionContributions

us-gaap:PensionContributions


Pension
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-05-152015-03-092015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value0.0750.0780.1110.3360.7263.9140.3970.4580.4694.515200.5250.5170.5270.5210.5150.630.5060.560.4382.340.5560.498405010.0120.396100.390.390.3870.3820.3079.6630.3050.3073.9333.941
Percentage of PensionContributions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionContributions us-gaap:RetirementPlanType

bcc:PensionPlanRepurchases


Pension
Period End2020-09-302019-12-312018-12-31
Value113.64.0
Percentage of PensionContributions98.392.088.6

us-gaap:PensionPlansDefinedBenefit


Pension
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value0.1110.40.73.90.4
Percentage of PensionContributions100.0100.0119.096.499.6100.8

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-373000.0-317000.0-371000.0979000.0-399000.0-1364000.057000.0-176000.0-188000.0-181000.0-174000.0-158000.0-116000.0-107000.0-677000.0527000.0-42000.0-64000.0-61000.0-60000.0-59000.0-62000.0-40000.0-136000.0127000.0-530000.0141000.073000.03000.0-345000.0-1000.02000.0191000.0000
Percentage of ProceedsFromPaymentsForOtherFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value364000.0136000.0150000.0157000.0303000.0103000.0194000.0249000.0246000.01149000.0374000.0514000.0228000.093000.0149000.0249000.01188000.0652000.098000.0291000.0111000.0144000.0175000.02696000.0163000.0100000.088000.089000.0117000.04520000.0631000.0990000.057000.0489000.075000.026000.057000.088000.0
Percentage of ProceedsFromSaleOfPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty us-gaap:ConsolidatedEntities

us-gaap:RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty

us-gaap:VariableInterestEntityNotPrimaryBeneficiary


Related
Period End2021-06-302021-03-312020-06-302020-03-31
Value20201322
Percentage of RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty100.0100.0100.0100.0

us-gaap:RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:VariableInterestEntityNotPrimaryBeneficiary


Related
Period End2020-09-302019-09-30
Value1521
Percentage of RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty0.00.0

us-gaap:RestructuringReserveAcceleratedDepreciation us-gaap:RestructuringCostAndReserve

us-gaap:RestructuringReserveAcceleratedDepreciation

bcc:CurtailmentofIjoistProductionatRoxboroNCFacilityMember


Restructuring
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.00.00.015
Percentage of RestructuringReserveAcceleratedDepreciation0.00.00.0100.0

us-gaap:RestructuringReserveAcceleratedDepreciation us-gaap:RestructuringCostAndReserve, us-gaap:StatementBusinessSegments

bcc:CurtailmentofIjoistProductionatRoxboroNCFacilityMember, bcc:WoodProducts


Restructuring
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.00.00.015
Percentage of RestructuringReserveAcceleratedDepreciation0.00.00.0100.0

us-gaap:RevenueFromRelatedParties us-gaap:ConsolidatedEntities

us-gaap:RevenueFromRelatedParties

us-gaap:VariableInterestEntityNotPrimaryBeneficiary


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value3.43.32.54.2
Percentage of RevenueFromRelatedParties100.0100.0100.0100.0

us-gaap:RevenueFromRelatedParties us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:VariableInterestEntityNotPrimaryBeneficiary


Revenue
Period End2020-09-302019-09-30
Value2.84.0
Percentage of RevenueFromRelatedParties0.00.0

us-gaap:RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability


Right
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value98000.0533000.08364000.0974000.0-18000.02345000.0310000.00
Percentage of RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability


Right
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1682000.0859000.03161000.02608000.0968000.01875000.0783000.0585000.0
Percentage of RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SellingExpense

us-gaap:SellingExpense


Selling
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value1301201021221039998106988789939683838782737580766870726861657267586166605758626053
Percentage of SellingExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue

us-gaap:PerformanceShares


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value2.334.8900032.57-0.59-0.12-2.0237.99-0.48-0.833.3723.720.1302.9416.56-1.540-1.1336.1700.172.8529.790
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue100.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.00.0100.0100.0100.00.0

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value-0.0333.7900032.82-0.58-0.11-0.6235.96-0.56-0.954.122.98-0.10.2522.260-2.66022.0100.030.163.4930.32
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue-1.396.80.00.00.0100.898.391.730.794.7116.7114.5121.796.9-76.90.0757.10.0172.70.0-1947.80.00.094.1122.5101.8

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:PerformanceShares


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value052.4500036.4500029.4800043.0500027.0500016.5600036.1700030.32
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.0

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value0.5152.4500036.450.070-0.0229.08000.0343.0500.05027.050.030.10.0416.56-0.020036.18
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.0100.00.00.00.0100.00.00.00.098.60.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value0.09.20.00.00.0110.00.00.3110.00.20.0150.10.00.57.91.00.00.01.81.70.00.32.9
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue0.0100.00.00.00.0100.00.00.0100.0100.00.0100.00.0100.0100.00.0100.0100.0100.00.00.0100.0100.00.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue

us-gaap:PerformanceShares


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value038.700028.93000.5219.45000.0120.190.030.050.5319.83-2.470-0.0636.18-0.550-0.0730.3200026.65
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue0.0100.00.00.00.0100.00.00.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.00.00.00.0100.0

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value035.6400030.8800.010.0126.420-0.01023.480.050.060.6120.07-1.430-0.0236.16-0.020.11-0.0230.43
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue0.092.10.00.00.0106.70.00.01.9135.80.00.00.0116.3166.7120.0115.1101.257.90.033.399.93.60.028.6100.4

us-gaap:ShortTermLeaseCost

us-gaap:ShortTermLeaseCost


Short
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1165000.01083000.01146000.0899000.0937000.01133000.01207000.01338000.01075000.0994000.0
Percentage of ShortTermLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesNewIssues us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesNewIssues

us-gaap:CommonStock


Stock
Period End2021-03-312020-09-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value0.130.0040.2110.0010.0010.2650.0180.0180.292
Percentage of StockIssuedDuringPeriodSharesNewIssues100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised


Stock
Period End2021-03-312020-09-302020-03-312019-09-302018-09-302018-06-302018-03-31
Value63000.0125000.027000.027000.0470000.0478000.0464000.0
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-03-312020-09-302020-03-312019-09-302018-09-302018-06-302018-03-31
Value63000.0125000.027000.027000.0470000.0478000.0464000.0
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockholdersEquityOther

us-gaap:StockholdersEquityOther


Stockholders
Period End2021-06-302021-03-312020-03-312019-09-302019-03-312018-06-302018-03-31
Value1000.01000.02000.01000.02000.01000.03000.0
Percentage of StockholdersEquityOther100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockholdersEquityOther us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-03-312019-09-302019-03-312018-06-302018-03-31
Value1000.01000.02000.01000.02000.01000.03000.0
Percentage of StockholdersEquityOther100.0100.0100.0100.0100.0100.0100.0

us-gaap:SubleaseIncome

us-gaap:SubleaseIncome


Sublease
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value31000.030000.032000.031000.038000.039000.0102000.0134000.0172000.0132000.0
Percentage of SubleaseIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnrealizedGainLossOnDerivatives

us-gaap:UnrealizedGainLossOnDerivatives


Unrealized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value-25000.01024000.0255000.0147000.0-514000.0-2314000.0140000.0-569000.0-1551000.0-983000.0-1868000.0279000.0499000.01641000.01000000.0-33000.0-724000.0295000.04975000.0836000.0-1532000.0-69000.00000
Percentage of UnrealizedGainLossOnDerivatives100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:VariableLeaseCost

us-gaap:VariableLeaseCost


Variable
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value939000.0785000.0752000.0754000.0754000.0707000.0583000.0721000.0722000.0619000.0
Percentage of VariableLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:WriteOffOfDeferredDebtIssuanceCost us-gaap:ExtinguishmentOfDebt

us-gaap:WriteOffOfDeferredDebtIssuanceCost

bcc:A5.625SeniorNotesDue2024


Write
Period End2020-09-30
Value3200000.0
Percentage of WriteOffOfDeferredDebtIssuanceCost100.0

bcc:CustomerRebatesAndAllowances

bcc:CustomerRebatesAndAllowances


Customer
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value9356566245454953514852616346454546303134322427292618242824192426211619
Percentage of CustomerRebatesAndAllowances100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bcc:DeferredTaxAssetsLeasingArrangements

bcc:DeferredTaxAssetsLeasingArrangements


Deferred
Period End2020-12-312019-12-312018-12-31
Value25230.0
Percentage of DeferredTaxAssetsLeasingArrangements100.0100.00.0

bcc:EmployeeRelatedLiabilitiesNoncurrent

bcc:EmployeeRelatedLiabilitiesNoncurrent


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value2827253242414544434341496477758383838393939393838414415681919396194195195206
Percentage of EmployeeRelatedLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bcc:FinanceLeaseLiabilityToBePaidAfterYearFour

bcc:FinanceLeaseLiabilityToBePaidAfterYearFour


Finance
Period End2021-06-302021-03-312020-09-30
Value373741
Percentage of FinanceLeaseLiabilityToBePaidAfterYearFour100.0100.0100.0

bcc:LesseeOperatingLeaseLiabilityToBePaidAfterYearFour

bcc:LesseeOperatingLeaseLiabilityToBePaidAfterYearFour


Lessee
Period End2021-06-302021-03-312020-09-30
Value252534
Percentage of LesseeOperatingLeaseLiabilityToBePaidAfterYearFour100.0100.0100.0

bcc:Logs

bcc:Logs


Logs
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value4840352833404543404854463943574333476363574658554747575646496552293837
Percentage of Logs100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bcc:NumberOfCollectiveBargainingAgreementsSetToExpireWithinOneYear

bcc:NumberOfCollectiveBargainingAgreementsSetToExpireWithinOneYear


Number
Period End2020-12-31
Value2.0
Percentage of NumberOfCollectiveBargainingAgreementsSetToExpireWithinOneYear100.0

bcc:Numberofemployeesinmultiemployerplans us-gaap:RetirementPlanName

bcc:Numberofemployeesinmultiemployerplans

bcc:MultiemployerDefinedContributoryTrustPlan


Numberofemployeesinmultiemployerplansus-gaap:
Period End2020-12-312019-12-312018-12-31
Value735.01215.01221.0
Percentage of Numberofemployeesinmultiemployerplans100.0100.0100.0

bcc:Timberdeposits

bcc:Timberdeposits


Timberdeposits
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value7.4691011131414121414121213151213141717141112151513121313116.3866.4616.2665.7017.2677.0276.221
Percentage of Timberdeposits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bcc:VendorRebatesAndAllowances

bcc:VendorRebatesAndAllowances


Vendor
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value118.29.97.76.96.29.2116.16.09.79.37.65.36.75.75.34.07.05.93.95.07.74.83.32.86.14.83.73.14.75.54.01.74.1
Percentage of VendorRebatesAndAllowances100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:EntityCommonStockSharesOutstanding

dei:EntityCommonStockSharesOutstanding


Entity
Period End2021-07-302021-04-302021-02-122020-10-23
Value39393939
Percentage of EntityCommonStockSharesOutstanding100.0100.0100.0100.0

dei:EntityNumberOfEmployees

dei:EntityNumberOfEmployees


Entity
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value5970.06020.06220.06320.06210.05830.0
Percentage of EntityNumberOfEmployees100.0100.0100.0100.0100.0100.0

dei:EntityNumberOfEmployees us-gaap:ConcentrationRiskByBenchmark

us-gaap:WorkforceSubjectToCollectiveBargainingArrangementsExpiringWithinOneYear


Entity
Period End2020-12-31
Value740.0
Percentage of EntityNumberOfEmployees12.4

us-gaap:AccountsPayableRelatedPartiesCurrent

us-gaap:AccountsPayableRelatedPartiesCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value2811000.01026000.01199000.01654000.01835000.02431000.01624000.02349000.01633000.01890000.01070000.01503000.02017000.01376000.01225000.02235000.02088000.01515000.01903000.02176000.01954000.01623000.01442000.03636000.03445000.03591000.01743000.02975000.02378000.02143000.02484000.02159000.01957000.02092000.01950000.0
Percentage of AccountsPayableRelatedPartiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccountsPayableTradeCurrent

us-gaap:AccountsPayableTradeCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value507457307381320307222286273284210302349312233283294284194245247253159218238207150185204197139131
Percentage of AccountsPayableTradeCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccountsReceivableRelatedPartiesCurrent

us-gaap:AccountsReceivableRelatedPartiesCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value412000.0416000.0201000.0375000.0417000.0585000.0568000.0630000.0490000.0612000.0436000.0435000.0506000.0428000.0345000.0285000.0464000.0434000.0506000.0439000.0376000.0515000.01065000.0959000.0487000.0573000.0821000.01111000.0714000.0660000.0583000.0470000.0434000.0430000.0674000.0
Percentage of AccountsReceivableRelatedPartiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent


Allowance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value2513000.01840000.01111000.01629000.0890000.0980000.0591000.01087000.0744000.01471000.01062000.01257000.0904000.01275000.0945000.01227000.0915000.01435000.01459000.01388000.01121000.01950000.01734000.01935000.01694000.02293000.02062000.02422000.02249000.02808000.02509000.03150000.02546000.02776000.02696000.0
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetRetirementObligation

us-gaap:AssetRetirementObligation


Asset
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value2300000.02200000.02100000.01100000.01000000.0200000.0200000.0400000.0300000.0
Percentage of AssetRetirementObligation100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CapitalizedComputerSoftwareNet

us-gaap:CapitalizedComputerSoftwareNet


Capitalized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value4100000.04600000.04600000.05700000.06500000.06500000.04400000.03700000.03700000.0
Percentage of CapitalizedComputerSoftwareNet100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashAndCashEquivalentsFairValueDisclosure us-gaap:CashAndCashEquivalents, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:CashAndCashEquivalentsFairValueDisclosure

us-gaap:MoneyMarketFunds, us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value5853993714663331822592551671161601391595513713174167898695517017215610713785
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentCarryingAmount us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentCarryingAmount

bcc:A4875SeniorNotesDue2030, us-gaap:SeniorNotes


Debt
Period End2020-07-27
Value400
Percentage of DebtInstrumentCarryingAmount100.0

us-gaap:DebtInstrumentFaceAmount us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentFaceAmount

bcc:A4875SeniorNotesDue2030, us-gaap:SeniorNotes


Debt
Period End2020-07-27
Value400
Percentage of DebtInstrumentFaceAmount100.0

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

bcc:A4875SeniorNotesDue2030, us-gaap:SeniorNotes, us-gaap:SubsequentEvent


Debt
Period End2020-07-27
Value400
Percentage of DebtInstrumentFaceAmount100.0

us-gaap:DeferredCompensationArrangementWithIndividualRecordedLiability us-gaap:BalanceSheetLocation

us-gaap:DeferredCompensationArrangementWithIndividualRecordedLiability

bcc:AccruedLiabilitiesCompensationAndBenefits


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value5.92.11.11.60.50.51.41.81.1
Percentage of DeferredCompensationArrangementWithIndividualRecordedLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0

bcc:OtherCompensationAndBenefits


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value1921181413119.39.19.8
Percentage of DeferredCompensationArrangementWithIndividualRecordedLiability335.61028.61709.1925.02640.02240.0664.3505.6890.9

us-gaap:DeferredIncomeTaxAssetsNet

us-gaap:DeferredIncomeTaxAssetsNet


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value7261000.07329000.07460000.07619000.07620000.07509000.07952000.07962000.08167000.08259000.08211000.08736000.08739000.08677000.09064000.08840000.0
Percentage of DeferredIncomeTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredIncomeTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312013-02-04
Value778056537064554532
Percentage of DeferredIncomeTaxLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsInventory

us-gaap:DeferredTaxAssetsInventory


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312013-02-04
Value3711000.03358000.02649000.04598000.05237000.06618000.06733000.04657000.03124000.0
Percentage of DeferredTaxAssetsInventory100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsForeign

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsForeign


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312013-12-312013-02-04
Value1.2791.5143.1085.1371715
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsForeign100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312013-02-04
Value6921000.06256000.06461000.06003000.07628000.06257000.03587000.03803000.03535000.0
Percentage of DeferredTaxAssetsOther100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312013-02-04
Value292627305452815587
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssets

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssets


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312013-02-04
Value6823000.05924000.05369000.04168000.05039000.05264000.04531000.03968000.03883000.0
Percentage of DeferredTaxLiabilitiesGoodwillAndIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesLeasingArrangements

us-gaap:DeferredTaxLiabilitiesLeasingArrangements


Deferred
Period End2020-12-312019-12-312018-12-31
Value23210.0
Percentage of DeferredTaxLiabilitiesLeasingArrangements100.0100.00.0

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312013-02-04
Value1298000.01597000.02445000.01867000.02655000.0851000.0691000.0862000.0788000.0
Percentage of DeferredTaxLiabilitiesOther100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312013-02-04
Value455048476258504027
Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation

us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value4.9192176483460484513443504
Percentage of DefinedBenefitPlanAccumulatedBenefitObligation100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value1.44315115059758914121
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value-1443000.0-15332000.0-11856000.0-50787000.0-59540000.0-75801000.0-89592000.0-14552000.0-120920000.0
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheet

us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheet


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value-4887000.0-23410000.0-22051000.0-61270000.0-70752000.0-84617000.0-149840000.0-86033000.0-192460000.0
Percentage of DefinedBenefitPlanAmountsRecognizedInBalanceSheet100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312015-05-152014-12-312013-12-312012-12-31
Value2.00.0310.04150.0340.0390.04050.0390.03750.04650.0375
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanBenefitObligation

us-gaap:DefinedBenefitPlanBenefitObligation


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value4.887192176483460484513443504470
Percentage of DefinedBenefitPlanBenefitObligation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter


Defined
Period End2020-12-31
Value1373000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths


Defined
Period End2020-12-31
Value367000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive


Defined
Period End2020-12-31
Value314000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour


Defined
Period End2020-12-31
Value368000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree


Defined
Period End2020-12-31
Value382000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo


Defined
Period End2020-12-31
Value380000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo100.0

us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear

us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear


Defined
Period End2020-12-31
Value400000.0
Percentage of DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear100.0

us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsRemainderOfFiscalYear

us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsRemainderOfFiscalYear


Defined
Period End2021-06-302021-03-31
Value200000.0300000.0
Percentage of DefinedBenefitPlanExpectedFutureEmployerContributionsRemainderOfFiscalYear100.0100.0

us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsRemainderOfFiscalYear us-gaap:RetirementPlanType

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-09-302018-09-30
Value100000.04500000.0
Percentage of DefinedBenefitPlanExpectedFutureEmployerContributionsRemainderOfFiscalYear0.00.0

us-gaap:DefinedBenefitPlanFundedStatusOfPlan

us-gaap:DefinedBenefitPlanFundedStatusOfPlan


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value-4887000.0-23410000.0-22051000.0-61270000.0-70752000.0-84617000.0-149840000.0-86033000.0-192460000.0
Percentage of DefinedBenefitPlanFundedStatusOfPlan100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeFixedInterestRate us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation

us-gaap:DerivativeFixedInterestRate

bcc:InterestRateSwap50millionnotionalamountfixedat1.007, us-gaap:Nondesignated


Derivative
Period End2020-12-312020-06-302020-03-312016-02-16
Value1.0070.010070.010070.01007
Percentage of DerivativeFixedInterestRate100.0100.0100.0100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value1168711811878568372644887838152847163456762574754554846666952476059424261
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized


Employee
Period End2021-06-302021-03-312020-12-312020-09-30
Value14189.211
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized100.0100.0100.0100.0

us-gaap:FinanceLeaseLiability

us-gaap:FinanceLeaseLiability


Finance
Period End2021-06-302021-03-312020-12-312020-09-30
Value32323333
Percentage of FinanceLeaseLiability100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityCurrent

us-gaap:FinanceLeaseLiabilityCurrent


Finance
Period End2021-06-302021-03-312020-09-30
Value1575000.01549000.01514000.0
Percentage of FinanceLeaseLiabilityCurrent100.0100.0100.0

us-gaap:FinanceLeaseLiabilityCurrent us-gaap:BalanceSheetLocation

us-gaap:OtherCurrentLiabilities


Finance
Period End2020-12-31
Value1557000.0
Percentage of FinanceLeaseLiabilityCurrent0.0

us-gaap:FinanceLeaseLiabilityNoncurrent

us-gaap:FinanceLeaseLiabilityNoncurrent


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value303131313123232321210.0
Percentage of FinanceLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:FinanceLeaseLiabilityPaymentsDue

us-gaap:FinanceLeaseLiabilityPaymentsDue


Finance
Period End2021-06-302021-03-312020-12-312020-09-30
Value55565758
Percentage of FinanceLeaseLiabilityPaymentsDue100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive


Finance
Period End2020-12-31
Value37
Percentage of FinanceLeaseLiabilityPaymentsDueAfterYearFive100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths


Finance
Period End2021-06-302021-03-312020-12-312020-09-30
Value3879000.03879000.03924000.03917000.0
Percentage of FinanceLeaseLiabilityPaymentsDueNextTwelveMonths100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive


Finance
Period End2020-12-31
Value3607000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearFive100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour


Finance
Period End2021-06-302021-03-312020-12-312020-09-30
Value3601000.03601000.03967000.03959000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearFour100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree


Finance
Period End2021-06-302021-03-312020-12-312020-09-30
Value3916000.03916000.03970000.03963000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearThree100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo


Finance
Period End2021-06-302021-03-312020-12-312020-09-30
Value3919000.03919000.03930000.03923000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearTwo100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear


Finance
Period End2021-06-302021-03-312020-09-30
Value1948000.02910000.0974000.0
Percentage of FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear100.0100.0100.0

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount


Finance
Period End2021-06-302021-03-312020-12-312020-09-30
Value22232424
Percentage of FinanceLeaseLiabilityUndiscountedExcessAmount100.0100.0100.0100.0

us-gaap:FinanceLeaseRightOfUseAsset

us-gaap:FinanceLeaseRightOfUseAsset


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value282829303022212220200.0
Percentage of FinanceLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value7.77.77.77.70.0770.0850.085
Percentage of FinanceLeaseWeightedAverageDiscountRatePercent100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-312012-12-31
Value4776000.03553000.02399000.01484000.0753000.0580000.0407000.0233000.0210000.0117000.023000.00
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312013-12-312012-12-31
Value4776000.03553000.02399000.01484000.0753000.0580000.0407000.0233000.0210000.023000.00
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths


Finite
Period End2020-12-31
Value1200000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive


Finite
Period End2020-12-31
Value1200000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFive100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour


Finite
Period End2020-12-31
Value1200000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFour100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree


Finite
Period End2020-12-31
Value1200000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearThree100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo


Finite
Period End2020-12-31
Value1200000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo100.0

us-gaap:FiniteLivedIntangibleAssetsGross us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsGross

us-gaap:CustomerRelationships


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312013-12-312013-09-302012-12-31
Value1212107.657.47.47.47.41.41.41.40.0
Percentage of FiniteLivedIntangibleAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:IntangibleAssetsGrossExcludingGoodwill

us-gaap:IntangibleAssetsGrossExcludingGoodwill


Intangible
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-312013-09-302012-12-31
Value2121191616161616101010108.9
Percentage of IntangibleAssetsGrossExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestPayableCurrent

us-gaap:InterestPayableCurrent


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value9879000.05011000.08477000.03596000.06696000.01782000.06723000.01800000.06735000.01818000.06748000.01833000.06742000.01837000.06742000.01803000.06794000.01907000.06860000.04998000.03403000.08156000.03389000.08157000.03375000.08079000.03298000.08076000.03297000.08080000.03294000.08073000.02745000.07160000.03188000.0
Percentage of InterestPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:HedgingDesignation

us-gaap:InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue

us-gaap:OtherNoncurrentAssets, us-gaap:InterestRateSwap, us-gaap:FairValueInputsLevel2, us-gaap:Nondesignated


Interest
Period End2021-06-302021-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value700000.0900000.0800000.0700000.01200000.02800000.03800000.07200000.06900000.06400000.04700000.03700000.03800000.04500000.04200000.0
Percentage of InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:HedgingDesignation

us-gaap:InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue

us-gaap:OtherNoncurrentLiabilities, us-gaap:InterestRateSwap, us-gaap:FairValueInputsLevel2, us-gaap:Nondesignated


Interest
Period End2021-06-302021-03-312020-12-312020-09-30
Value300000.0400000.0600000.0800000.0
Percentage of InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue100.0100.0100.0100.0

us-gaap:InventoryFinishedGoodsAndWorkInProcessNetOfReserves

us-gaap:InventoryFinishedGoodsAndWorkInProcessNetOfReserves


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value641533431385383456413410445487441473490452377374415394330346365355292316336354308313336345292290316326267
Percentage of InventoryFinishedGoodsAndWorkInProcessNetOfReserves100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InventoryRawMaterialsAndSuppliesNetOfReserves

us-gaap:InventoryRawMaterialsAndSuppliesNetOfReserves


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value3737364039393938383736394242424241404040393833333130292827262526222221
Percentage of InventoryRawMaterialsAndSuppliesNetOfReserves100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value13131313
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear


Lessee
Period End2021-06-302021-03-312020-09-30
Value6.922103.233
Percentage of LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear100.0100.0100.0

us-gaap:LettersOfCreditOutstandingAmount us-gaap:DebtInstrument

us-gaap:LettersOfCreditOutstandingAmount

us-gaap:RevolvingCreditFacility


Letters
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value4.74.74.84.64.64.64.64.64.64.64.64.64.64.75.95.9
Percentage of LettersOfCreditOutstandingAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesOtherThanLongtermDebtNoncurrent

us-gaap:LiabilitiesOtherThanLongtermDebtNoncurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value1331421471611751681661691631619911612313011211611411110812011711211011110315917199108107111209209209221
Percentage of LiabilitiesOtherThanLongtermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LineOfCreditFacilityCurrentBorrowingCapacity us-gaap:DebtInstrument

us-gaap:LineOfCreditFacilityCurrentBorrowingCapacity

bcc:AssetBasedCreditFacility


Line
Period End2021-06-302021-03-312020-12-312020-09-30
Value345345345345
Percentage of LineOfCreditFacilityCurrentBorrowingCapacity100.0100.0100.0100.0

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity us-gaap:DebtInstrument

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity

us-gaap:RevolvingCreditFacility


Line
Period End2021-06-302021-03-312020-03-132015-05-15
Value350350350370
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity100.0100.0100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive


Long
Period End2020-12-31
Value400
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive


Long
Period End2020-12-31
Value50
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive100.0

us-gaap:NontradeReceivablesCurrent

us-gaap:NontradeReceivablesCurrent


Nontrade
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value161215119.77212151511101415139.319.389.4249.34811108.6877.3889.035107.8915.3295.3617.3117.1646.3736.027.2688.6436.6123.9056.204
Percentage of NontradeReceivablesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NotesPayableFairValueDisclosure us-gaap:DebtInstrument, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

us-gaap:NotesPayableFairValueDisclosure

bcc:A4875SeniorNotesDue2030, us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure


Notes
Period End2021-06-302021-03-312020-12-312020-09-30
Value423418432430
Percentage of NotesPayableFairValueDisclosure100.0100.0100.0100.0

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value6.46.36.46.40.0640.0640.065
Percentage of OperatingLeaseWeightedAverageDiscountRatePercent100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeasesFutureMinimumPaymentsDue

us-gaap:OperatingLeasesFutureMinimumPaymentsDue


Operating
Period End2021-06-302021-03-312020-12-312020-09-30
Value78818486
Percentage of OperatingLeasesFutureMinimumPaymentsDue100.0100.0100.0100.0

us-gaap:OperatingLossCarryforwards us-gaap:ConsolidatedEntities, us-gaap:StatementGeographical

us-gaap:OperatingLossCarryforwards

srt:Subsidiaries, country:CA


Operating
Period End2020-12-31
Value9900000.0
Percentage of OperatingLossCarryforwards100.0

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities


Pension
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value367000.0878000.0671000.0715000.0804000.02510000.02978000.0679000.01271000.0
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SelfInsuranceReserveCurrent

us-gaap:SelfInsuranceReserveCurrent


Self
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value9500000.09900000.010000000.09600000.08400000.09700000.07800000.07900000.07200000.0
Percentage of SelfInsuranceReserveCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SelfInsuranceReserveNoncurrent

us-gaap:SelfInsuranceReserveNoncurrent


Self
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value10.010.09.51010.09.8101010.0
Percentage of SelfInsuranceReserveNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:PerformanceShares


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value39.5439.3335.3435.3435.3435.3431.0931.0931.0931.1325.925.8825.7925.8420.7620.7720.7820.8918.1618.7818.7818.8135.0933.5533.5533.4229.6629.229.1829.1426.65
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value45.0642.4834.2434.2434.2434.2431.1431.1131.1131.2429.5229.4729.3929.3523.0623.0723.0323.219.7320.2220.1720.235.4134.8334.8334.7330.4526.65
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue114.0108.096.996.996.996.9100.2100.1100.1100.4114.0113.9114.0113.6111.1111.1110.8111.1108.6107.7107.4107.4100.9103.8103.8103.9102.7100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized


Share
Period End2020-12-31
Value3700000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant


Share
Period End2020-12-31
Value2500000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant100.0

us-gaap:TaxCreditCarryforwardAmount us-gaap:IncomeTaxAuthority

us-gaap:TaxCreditCarryforwardAmount

us-gaap:StateAndLocalJurisdiction


Tax
Period End2020-12-31
Value1300000.0
Percentage of TaxCreditCarryforwardAmount100.0

us-gaap:TreasuryStockCommonShares

us-gaap:TreasuryStockCommonShares


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value5367000.05367000.05367000.05367000.05367000.05367000.05367000.05367000.05367000.05367000.05367000.05167000.05167000.05167000.05167000.05167000.0
Percentage of TreasuryStockCommonShares100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStockCommonShares us-gaap:StatementEquityComponents

us-gaap:TreasuryStockCommon


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-31
Value5367000.05367000.05367000.05367000.05367000.05367000.05367000.05367000.05367000.05367000.05367000.05167000.05167000.05167000.05167000.05167000.04587000.03864000.0
Percentage of TreasuryStockCommonShares100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

us-gaap:TreasuryStockCommonValue

us-gaap:TreasuryStockCommonValue


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value138138138138138138138138138138138133133133133133
Percentage of TreasuryStockCommonValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value1800000.01700000.01800000.02000000.02100000.0700000.0300000.0
Percentage of UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount us-gaap:UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchased

us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount

us-gaap:Inventories


Unrecorded
Period End2020-12-31
Value214
Percentage of UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount100.0

Line plots across dimensions of each concept


Operating Margin
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
Operating  Marginus-gaap: Consolidation Items, us-gaap: Statement Business Segments
TTM Greenblatt ROC
_
(None,)
T T M  Greenblatt  R O C_
us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:AwardType
(None,)
Allocated Share Based Compensation Expenseus-gaap: Award Type
us-gaap:OperatingIncomeLoss
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
Operating Income Lossus-gaap: Consolidation Items, us-gaap: Statement Business Segments
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Consolidation Items, us-gaap: Statement Business Segments
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
(None, 'bcc:WoodProducts')
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Product Or Service, us-gaap: Statement Business Segments
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
(None, 'bcc:BuildingMaterialsDistribution')
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Product Or Service, us-gaap: Statement Business Segments
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:StatementBusinessSegments
(None,)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Statement Business Segments
us-gaap:Assets
us-gaap:StatementBusinessSegments
(None,)
Assetsus-gaap: Statement Business Segments
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components
us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType
(None,)
Property Plant And Equipment Grossus-gaap: Property Plant And Equipment By Type
us-gaap:Goodwill
us-gaap:StatementBusinessSegments
(None,)
Goodwillus-gaap: Statement Business Segments
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components