ACA


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

Table of contents



us-gaap:CommonStockValue
us-gaap:StatementEquityComponents
us-gaap:SharesIssued

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:BenefitsLossesAndExpenses

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:CostOfGoodsAndServicesSold

us-gaap:CostOfRevenue

us-gaap:CostsAndExpenses

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit

us-gaap:InterestExpense

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

us-gaap:OperatingExpenses

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

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:Revenues
us-gaap:BusinessAcquisition
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

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

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:AssetsCurrent

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:AccountsReceivableNetCurrent

us-gaap:InventoryNet

us-gaap:OtherAssetsCurrent
us-gaap:StatementGeographical
us-gaap:NoncurrentAssets

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:PropertyPlantAndEquipmentNet
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:Goodwill
us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:BalanceSheetLocation
us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent

us-gaap:AccountsPayableCurrent

us-gaap:AccruedLiabilitiesCurrent

us-gaap:LiabilitiesCurrent
us-gaap:BalanceSheetLocation
us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OtherLiabilitiesCurrent

us-gaap:DebtAndCapitalLeaseObligations

us-gaap:LongTermDebtAndCapitalLeaseObligations

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:OtherLiabilitiesNoncurrent
us-gaap:BalanceSheetLocation
us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapital

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:TreasuryStockValue

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DepreciationDepletionAndAmortization

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInInventories

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:PaymentsOfDividendsCommonStock
us-gaap:StatementEquityComponents

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

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxAssetsValuationAllowance
us-gaap:BusinessAcquisition
aca:BusinessAcquisitionProFormaIncomeBeforeIncomeTaxes

aca:CARESActDeferredPayrollTaxPayments

aca:CARESActDeferredTaxPayments

aca:IncreaseDecreaseInAdvanceBillings

aca:MultiemployerPlanEmployerContributions

aca:OtherIncomeExpenseNonoperating
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments, us-gaap:SubsequentEventType
aca:UsGaap_RevenueRemainingPerformanceObligationOrdersReceivedInPeriod
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisitionsProFormaRevenue
us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments
us-gaap:BusinessCombinationAcquisitionRelatedCosts
us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments
us-gaap:BusinessCombinationConsiderationTransferred1
us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments, us-gaap:SubsequentEventType
us-gaap:CreditFacility, us-gaap:LongtermDebtType, us-gaap:VariableRate
us-gaap:DebtInstrumentBasisSpreadOnVariableRate1
us-gaap:Range, us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:DefinedContributionPlanCostRecognized

us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax

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

us-gaap:IncreaseDecreaseInAccruedLiabilities

us-gaap:IncreaseDecreaseInOtherCurrentAssets

us-gaap:IncreaseDecreaseInOtherNoncurrentAssets

us-gaap:IncreaseDecreaseInOtherNoncurrentLiabilities

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:InterestIncomeOther
us-gaap:CreditFacility, us-gaap:LongtermDebtType
us-gaap:LineOfCreditFacilityCommitmentFeePercentage
us-gaap:Range, us-gaap:CreditFacility, us-gaap:LongtermDebtType
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax

us-gaap:OtherNoncashIncomeExpense

us-gaap:OtherPostretirementBenefitExpense

us-gaap:ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic

us-gaap:PaymentsOfOrdinaryDividends

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired

us-gaap:ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment
us-gaap:StatementEquityComponents
us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
us-gaap:StatementEquityComponents
us-gaap:ReclassificationFromAociCurrentPeriodTax

us-gaap:RepaymentsOfLongTermDebtAndCapitalSecurities
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures
us-gaap:StatementEquityComponents

us-gaap:StockholdersEquityOther
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:TreasuryStockRetiredCostMethodAmount
us-gaap:StatementEquityComponents
us-gaap:TreasuryStockSharesAcquired
us-gaap:StatementEquityComponents
us-gaap:TreasuryStockSharesRetired

us-gaap:TreasuryStockValueAcquiredCostMethod
us-gaap:StatementEquityComponents
us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments
aca:BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedCurrentAssetsMineralReserves

aca:DeferredTaxAssetsLiabilitiesNetBeforeValuationAllowanceandReserveforUncertainTaxProvisions

aca:DeferredTaxAssetsTaxDeferredExpenseReservesandAccrualsAccruedLiabilitiesandOther

aca:DeferredTaxAssetsTaxDeferredExpenseReservesandAccrualsWarrantyReservesandOtherReserves

aca:LettersOfCreditOutstandingExpiringInCurrentFiscalYear
us-gaap:CreditFacility, us-gaap:LongtermDebtType
us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
aca:LineofCreditFacilityAmountOutstandingExclusiveofLettersofCredit
us-gaap:CreditFacility, us-gaap:LongtermDebtType

aca:MultiemployerPlanEstimatedFutureContributionsinNextFiscalYear
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
aca:Revenueremainingperformanceobligationexpectedtobedeliveredincurrentyear
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
aca:Revenueremainingperformanceobligationexpectedtobedeliveredinnextyear

dei:EntityCommonStockSharesOutstanding

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:AssetsFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:BusinessCombinationContingentConsiderationLiability
us-gaap:FairValueByMeasurementFrequency
us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCapitalLeaseObligation
us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents
us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets
us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables
us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable
us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther
us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities
us-gaap:BusinessAcquisition, us-gaap:FiniteLivedIntangibleAssetsByMajorClass, us-gaap:StatementBusinessSegments
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles
us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory
us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities
us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet

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

us-gaap:ContractWithCustomerAssetNet
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
us-gaap:DebtInstrumentCarryingAmount
us-gaap:LongtermDebtType
us-gaap:BalanceSheetLocation
us-gaap:DeferredCompensationLiabilityCurrentAndNoncurrent
us-gaap:BalanceSheetLocation
us-gaap:DeferredCompensationPlanAssets

us-gaap:DeferredIncomeTaxAssetsNet

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredTaxAssetsDeferredIncome

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsInventory

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsForeign

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal

us-gaap:DeferredTaxAssetsTaxCreditCarryforwards

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesTaxDeferredIncome
us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments
us-gaap:DeferredTaxesBusinessCombinationValuationAllowanceAvailableToReduceGoodwill

us-gaap:DefinedBenefitPlanBenefitObligation

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets
us-gaap:BalanceSheetLocation
us-gaap:DefinedBenefitPlanFundedStatusOfPlan
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeLiabilities
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:InventoryFinishedGoodsNetOfReserves

us-gaap:InventoryRawMaterialsAndSuppliesNetOfReserves

us-gaap:InventoryWorkInProcessNetOfReserves

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear
us-gaap:CreditFacility, us-gaap:LongtermDebtType
us-gaap:LettersOfCreditOutstandingAmount
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:LiabilitiesFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency
us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
us-gaap:CreditFacility, us-gaap:LongtermDebtType
us-gaap:CreditFacility, us-gaap:LongtermDebtType
us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity

us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent

us-gaap:LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities
us-gaap:CreditFacility, us-gaap:LongtermDebtType
us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalAfterYearFive
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
us-gaap:LongtermDebtType
us-gaap:CreditFacility, us-gaap:LongtermDebtType
us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFive
us-gaap:LongtermDebtType
us-gaap:LongtermDebtType
us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFour
us-gaap:LongtermDebtType
us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearThree
us-gaap:LongtermDebtType
us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearTwo
us-gaap:LongtermDebtType
us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear
us-gaap:LongtermDebtType
us-gaap:LongTermDebtAndCapitalLeaseObligationsRepaymentsOfPrincipalInNextTwelveMonths
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:LongTermDebtFairValue
us-gaap:CreditFacility, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
us-gaap:LongTermLineOfCredit
us-gaap:BalanceSheetLocation
us-gaap:LossContingencyAccrualAtCarryingValue
us-gaap:LossContingenciesByNatureOfContingency
us-gaap:Range
us-gaap:LossContingencyEstimateOfPossibleLoss

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
us-gaap:RevenueRemainingPerformanceObligation
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant

us-gaap:StandardProductWarrantyAccrualCurrent

us-gaap:StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1

us-gaap:TreasuryStockShares

us-gaap:UnamortizedDebtIssuanceExpense
us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:UndistributedEarningsOfForeignSubsidiaries

us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount
us-gaap:StatementBusinessSegments, us-gaap:UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchased

Plots across concepts


IncomeStatement
Other Comprehensive Income Loss Net Of Tax
Expenses
Other Nonoperating Income Expense
Balance Sheet
Operating Lease Liability
Assets
Cash And Cash Equivalents At Carrying Value
Current Assets
Other Assets Current
NonCurrent Assets
Deferred Income Tax Assets Net
PropertyPlantAndEquipmentNet
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
Liabilities
Operating Lease Liability
Current Liabilities
Other Liabilities Current
Noncurrent Liabilities
Other Liabilities Noncurrent
Stockholders Equity
Accumulated Other Comprehensive Income Loss Net Of Tax
CashFlow
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInOperatingActivities
Increase Decrease In Accounts Receivable
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInFinancingActivities
Proceeds From Payments For Other Financing Activities
Shares
Treasury Stock Shares
DividendsAndRepurchase
Payments Of Dividends Common Stock
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Due Year Four
FiniteLivedIntangibleAssets
Finite Lived Intangible Assets Accumulated Amortization
InventoryNet
Inventory Work In Process Net Of Reserves
AccountsReceivable
Allowance For Doubtful Accounts Receivable Current

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:CommonStockValue ▄▄▄▄▄▄▄▄▄▄▄0.50.50.50.50.50.50.50.50.50.50.5NANANA0.0NANANA
 us-gaap:SharesIssued us-gaap:StatementEquityComponents us-gaap:CommonStock███████████▁▁▁▁48.448.248.248.348.348.348.348.448.448.848.80.00.00.00.0NANANA
us-gaap:CommonStockSharesIssued NANA48.2NANANA48.3NANANA48.0NANANA0.0NANANA
us-gaap:CommonStockSharesOutstanding NANA48.2NANANA48.3NANANA48.0NANANA0.0NANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding ▁█48.648.8NA48.548.448.4NA48.348.348.5NA48.848.848.8NANANANA
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic █▁48.148.0NA48.147.947.8NA47.947.847.9NA48.848.848.8NANANANA
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount ▄▄1.81.8NA1.61.61.5NA1.61.71.7NA0.0NA0.0NANANANA
us-gaap:EarningsPerShareBasic ▅▄▃▇██▅██▇▇▁▅▅▆▅▅▆0.430.330.21000000000000020.640.690.650.440.680.660.570.560.070.460.450.480.420.450.48
us-gaap:EarningsPerShareDiluted ▅▄▃███▅██▇▇▁▅▅▆▅▅▆0.430.320.21000000000000020.640.680.650.430.670.650.560.560.070.460.450.480.420.450.48
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
 Operating Margin us-gaap:BusinessAcquisition aca:CherryIndustriesNANA42.841.744.943.8NANANANANANANANANANANANA
 Operating Margin us-gaap:BusinessAcquisition aca:StonePoint39.2NANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:ConsolidationItems us-gaap:OperatingSegments█▅▆▇▇▇▅▅▅▄▂▂▁▁▁▂515.2440.4458.8490.2499.2489.6447.5446.7435.2412.6374.7379.5353.8355.8348.1367.2NANA
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,aca:ConstructionProducts█▁204.5153.2NANA148.2149.4NANANANANANANANANANANANA
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,aca:ConstructionProductsGroupNANANA146.9148.2149.4102.2115.9115.6106.065.672.683.970.264.169.4NANA
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,aca:EnergyEquipmentGroupNANANA222.6222.8223.2213.0210.2204.3209.1207.0198.4178.4196.3192.8217.3NANA
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,aca:EngineeredStructures█▁242.5207.0NANA222.8223.2NANANANANANANANANANANANA
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,aca:TransportationProducts▁█68.280.2NANA128.2117.0NANANANANANANANANANANANA
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,aca:TransportationProductsGroupNANANA120.7128.2117.0132.3120.6115.397.5102.1108.591.589.3NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
 TTM Greenblatt ROC _ _▅▄▃▇██▅▇▇▆▄▁▅▅▄31.322.916.842.147.845.130.542.842.337.326.76.430.631.223.1NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:AllocatedShareBasedCompensationExpense ▄▆█▇▆▄▃▄▄▃▁▂▂▁▁▁4.14.76.05.25.13.73.54.03.73.42.42.72.62.22.32.3NANA
us-gaap:BenefitsLossesAndExpenses ▆▆▃█▆▅▁▁▂▃3.23.12.73.43.23.02.52.52.62.7NANANANANANANANA
us-gaap:ComprehensiveIncomeNetOfTax ▅▄▃██▇▅█▇▇▇▁▆▅▆▅21.616.911.431.933.627.322.032.130.127.129.43.122.822.523.619.8NANA
us-gaap:CostOfGoodsAndServicesSold █▅▆▇▇▇▆▅▄▄▃▃▁▁▁▂▁▃417.4361.1375.2390.3396.8391.3369.3356.7345.7332.8310.9308.9283.0285.6282.0290.4275.5319.8
us-gaap:CostOfRevenue █▅▆▇▇▇▆▅▄▄▃▃▁▁▁▂▁▃417.4361.1375.2390.3396.8391.3369.3356.7345.7332.8310.9308.9283.0285.6282.0290.4275.5319.8
us-gaap:CostsAndExpenses █▄▅▆▆▅▄▃▂▁483.8417.5442.1447.9450.7443.1416.4402.2391.8373.6NANANANANANANANA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▄▃▂▇█▇▅▇▇▆▅▁▅▅▄▆▆▇25.020.310.840.345.142.028.541.940.835.628.86.629.430.221.533.836.438.4
us-gaap:IncomeTaxExpenseBenefit ▄▄▂▆▇▆▅▆▆▅▂▃▅▅▁▇██4.24.40.39.111.810.47.49.29.07.91.13.46.88.0-2.113.214.514.8
us-gaap:InterestExpense █▃▃▃▄▄▃▃▃▃▂▁▁▁6.62.12.22.32.83.31.71.61.61.90.90.00.00.0NANANANA
us-gaap:NetIncomeLoss ▅▄▃███▅██▇▇▁▆▅▆▅▅▆20.815.910.531.233.331.621.132.731.827.727.73.222.622.223.620.621.923.6
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic ▅▄▃███▅██▇▇▁▆▅20.715.810.431.033.031.321.032.431.527.427.53.222.622.2NANANANA
us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted ▅▄▃███▅██▇▇▁▆▅20.715.810.431.033.031.321.032.431.527.427.53.222.622.2NANANANA
us-gaap:OperatingExpenses █▁66.456.4NA57.653.951.8416.4402.2391.8373.6347.7372.2322.4323.2324.4332.3NANA
us-gaap:OperatingIncomeLoss ▅▄▃▇██▅▇▇▆▄▁▅▅▄▆▆▇31.322.916.842.147.845.130.542.842.337.326.76.430.631.223.133.635.439.6
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax ▇▇▇▇█▁▇▆▇█▄▆▇█0.20.10.20.20.4-1.10.2-0.10.10.3-0.4-0.10.20.3NANANANA
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▇▇▇▇▆▁▇▅▄▅█▆▆▆▆▅0.81.00.90.70.3-4.30.9-0.6-1.7-0.61.7-0.10.20.30.0-0.8NANA
us-gaap:OtherNonoperatingIncomeExpense ▅▄▁▅▅▅▅▆▅▅█▅▄▄▃▅0.3-0.5-3.80.50.10.2-0.30.70.10.23.00.2-1.2-1.0-1.60.2NANA
us-gaap:Revenues █▅▆▇▇▇▅▅▅▄▂▂▁▁▁▂▁▃515.1440.4458.9490.0498.5488.2446.9445.0434.1410.9374.4378.6353.0354.4347.5365.9352.7396.3
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:Assets █▆▆▆▅▆▄▄▄▄▄▁3090.22666.02646.72635.02560.22621.62302.52218.02171.92142.82172.21610.0NANA1602.5NANANA
us-gaap:Liabilities █▅▅▅▅▅▃▃▃▃▃▁1169.7754.7754.5753.4711.1805.6512.1452.4437.6437.6487.7206.9NANA194.6NANANA
us-gaap:LiabilitiesAndStockholdersEquity █▆▆▆▅▆▄▄▄▄▄▁3090.22666.02646.72635.02560.22621.62302.52218.02171.92142.82172.21610.0NANA1602.5NANANA
us-gaap:StockholdersEquity ████▇▇▆▆▆▅▅▁▁▁▁1920.51911.31892.21881.61849.11816.01790.41765.61734.31705.21684.51403.11394.91372.41407.9NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:AssetsCurrent █▆▆▇▆█▇▆▅▅▆▁784.0697.8664.9740.6705.9772.0757.2674.4622.9617.8667.0449.8NANA428.8NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▄▃▄▆▅▇█▅▃▄▄▁▁▁▁▁100.381.995.8189.0148.4200.7240.4127.583.3118.099.410.410.66.76.810.2NANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents NANA95.8NANANA240.4NANANA99.4NANANA6.8NANANA
us-gaap:AccountsReceivableNetCurrent █▇▅▄▃▄▂▃▄▃▇▁314.3289.1260.2232.9217.7238.1200.0213.4228.7206.2291.4174.7NANA165.3NANANA
us-gaap:InventoryNet █▅▄▅▆▆▄▆▅▃▂▁339.1289.3276.8289.9314.0303.4283.3306.1291.0271.5252.5234.7NANA246.8NANANA
us-gaap:OtherAssetsCurrent ▅█▆▅▃▅▆▄▁▂▃▅30.337.532.128.825.829.833.527.419.922.123.730.0NANA9.9NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:MXNANA89.9NANANA85.5NANANA85.8NANANA91.9NANANA
us-gaap:PropertyPlantAndEquipmentGross █▅▅▅▅▄▄▄▃▃▃▁1935.61609.31594.61552.01527.01503.71406.21395.61377.21345.81328.71078.2NANA1064.7NANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment █▇▆▆▅▄▄▃▃▂▂▁728.9704.1681.3657.2634.3612.0590.0580.6562.9543.9525.7507.7NANA481.6NANANA
us-gaap:PropertyPlantAndEquipmentNet █▅▅▅▅▅▄▄▄▄▄▁1206.7905.2913.3894.8892.7891.7816.2815.0814.3801.9803.0570.5NANA583.1NANANA
us-gaap:Goodwill ███▇▇▇▄▄▄▄▄▁806.2791.3794.0776.0758.0752.7621.9626.6631.4616.3615.2504.0NANA494.3NANANA
us-gaap:IntangibleAssetsNetExcludingGoodwill █▇▇▂▁227.3211.7212.9163.2146.0NA51.7NANANA55.2NANANA64.4NANANA
us-gaap:FiniteLivedIntangibleAssetsNet █▁▂193.2177.6178.8NANANA17.6NANANANANANANANANANANA
 us-gaap:OperatingLeaseRightOfUseAsset us-gaap:BalanceSheetLocation us-gaap:OtherAssets█▃▆▄▁▃▃19.316.217.916.414.515.915.6NANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent ▁▁▁▁▁█▃▃▄▄▃▃51.044.846.245.242.2189.892.994.395.799.580.176.9NANA87.5NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:AccountsPayableCurrent █▇▅▅▃▄▂▂▂▂▂▁201.3175.7144.1137.1108.3113.290.082.673.079.386.260.9NANA56.0NANANA
us-gaap:AccruedLiabilitiesCurrent ▃▁▃▃▃▁▃▅▄█▆▂121.3102.1115.2116.4118.799.7119.4140.1129.0164.7146.2109.1NANA118.0NANANA
us-gaap:LiabilitiesCurrent █▆▆▆▅▅▅▃▂▄▃▁353.0312.2310.3312.2285.9279.0284.0223.8203.1245.8234.2170.1NANA174.1NANANA
 us-gaap:OperatingLeaseLiabilityCurrent us-gaap:BalanceSheetLocation us-gaap:AccruedLiabilities▄▁▅█▄▇█4.74.04.85.44.75.25.5NANANANANANANANANANANA
us-gaap:OtherLiabilitiesCurrent ▁▂▄▆▆▇█21.628.644.754.554.461.570.9NANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:DebtAndCapitalLeaseObligations █▃▃▃▃▄▁▁▁▁▂653.9255.9254.5254.6256.6356.9107.3107.5107.8105.1185.5NANANA0.5NANANA
us-gaap:LongTermDebtAndCapitalLeaseObligations █▄▄▄▄▅▂▂▂▂▃▁645.1250.1248.2250.4252.1352.3103.6106.4106.7103.3183.70.3NANA0.4NANANA
us-gaap:DeferredIncomeTaxLiabilitiesNet NANA112.7NANANA52.1NANANA51.4NANANA2.2NANANA
us-gaap:OtherLiabilitiesNoncurrent █▇██▇▇▅▆▆▂▁▂79.078.383.384.073.275.658.159.058.426.811.519.7NANA9.1NANANA
 us-gaap:OperatingLeaseLiabilityNoncurrent us-gaap:BalanceSheetLocation us-gaap:OtherLiabilities█▅▆▃▁▃▁17.715.616.414.713.314.313.5NANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo ▇▁█▆3.62.83.73.4NANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree █▁▃▁3.12.52.72.5NANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour █▁█▁2.42.22.42.2NANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA2.2NANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive █▄▄▁10.78.98.97.5NANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:StockholdersEquity ████▇▇▆▆▆▅▅▁▁▁▁1920.51911.31892.21881.61849.11816.01790.41765.61734.31705.21684.51403.11394.91372.41407.9NANANA
us-gaap:CommonStockValue ▄▄▄▄▄▄▄▄▄▄▄0.50.50.50.50.50.50.50.50.50.50.5NANANA0.0NANANA
us-gaap:AdditionalPaidInCapital ▄█▆▇▄▅▃▃▁▅▃1688.81699.41694.11695.81689.41690.51686.71684.61679.81690.21685.7NANANA0.0NANANA
us-gaap:RetainedEarningsAccumulatedDeficit █▇▇▇▆▅▄▄▃▂▁251.5233.2219.7211.7182.9152.0122.9104.374.044.719.5NANANA0.0NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▅▄▃▂▁▁▆▅▅▇█▆-20.3-21.1-22.1-23.0-23.7-24.0-19.7-20.6-20.0-18.3-17.7-19.4NANA-19.8NANANA
us-gaap:TreasuryStockValue NA0.7NA3.40.03.00.03.20.011.93.5NANANA0.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▄▁▃▆▅▃█▅▂▇▁▂▂▅▂50.70.433.19999999999997106.478.841.5139.877.816.2125.00.013.215.789.627.7NANANA
us-gaap:NetCashProvidedByUsedInInvestingActivities ▁█▆▇█▂██▇█▃████-408.7-10.4-118.50000000000006-59.2-25.1-325.4-22.0-27.9-42.2-17.3-309.1-11.1-12.4-31.9-35.1NANANA
us-gaap:NetCashProvidedByUsedInFinancingActivities █▂▂▂▁▆▂▂▂▁█▂▂▂▃376.4-3.9-7.9-6.6-106.0244.2-4.9-5.7-8.7-89.1398.1-2.30.6-57.84.0NANANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▅▄▁▆▂▃█▆▃▅18.4-13.9-93.240.6-52.3-39.7112.944.2-34.718.6NANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:DeferredIncomeTaxExpenseBenefit ▄▂▃▄▂▃▃▄▄▃█▃▃▃▁4.81.32.54.7-0.83.22.45.65.93.415.32.42.02.7-2.1NANANA
us-gaap:DepreciationDepletionAndAmortization █▆▆▅▅▅▃▃▃▂▂▁▁▁▂36.631.431.628.227.926.822.621.721.719.817.916.815.817.117.5NANANA
us-gaap:IncreaseDecreaseInAccountsPayable ▆█▄▇▂▅▄▄▁▁▅▁▅▂▂18.231.66.228.2-4.914.07.49.6-6.6-6.913.9-8.815.8-0.3-1.6NANANA
us-gaap:IncreaseDecreaseInAccountsReceivable ▄▆▅▅▄▅▄▄▅▁█▅▅▃▅-2.531.918.67.2-19.57.2-12.9-20.819.9-85.291.89.914.7-35.510.5NANANA
us-gaap:IncreaseDecreaseInInventories ▇▆▂▁▅▆▂▆▆▇▄▇█▃▄24.014.7-17.7-29.66.87.9-25.015.514.717.5-1.717.628.5-14.5-3.9NANANA
us-gaap:NetCashProvidedByUsedInOperatingActivities ▄▁▃▆▅▃█▅▂▇▁▂▂▅▂50.70.433.19999999999997106.478.841.5139.877.816.2125.00.013.215.789.627.7NANANA
us-gaap:NetIncomeLoss ▅▄▃███▅██▇▇▁▆▅▆▅▅▆20.815.910.531.233.331.621.132.731.827.727.73.222.622.223.620.621.923.6
us-gaap:ShareBasedCompensation ▄▆█▇▆▄▃▄▄▃▁▂▂▁4.14.76.05.25.13.73.54.03.73.42.42.72.62.2NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▁█▆▇█▂██▇█▃████-408.7-10.4-118.50000000000006-59.2-25.1-325.4-22.0-27.9-42.2-17.3-309.1-11.1-12.4-31.9-35.1NANANA
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▄▄▅▂▅▄▅▅▄▄▂▂▂▁█21.619.925.213.322.521.124.422.120.918.011.812.612.87.636.5NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities █▂▂▂▁▆▂▂▂▁█▂▂▂▃376.4-3.9-7.9-6.6-106.0244.2-4.9-5.7-8.7-89.1398.1-2.30.6-57.84.0NANANA
us-gaap:PaymentsOfDividendsCommonStock ███████████▁▁▁2.52.42.52.42.42.52.52.42.52.52.40.00.00.0NANANANA
us-gaap:PaymentsForRepurchaseOfCommonStock NANA4.02.00.02.00.0NANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument,us-gaap:LongtermDebtType us-gaap:UnsecuredDebt,us-gaap:SeniorNotesNANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:SubsequentEventType us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANA

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value500000.0500000.0500000.0500000.0500000.0500000.0500000.0500000.0500000.0500000.0500000.00
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.0

Shares Issued

us-gaap:SharesIssued us-gaap:StatementEquityComponents

us-gaap:SharesIssued

us-gaap:CommonStock


Shares
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value48484848484848484848480.00.00.00.00.00.0
Percentage of SharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.0

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesIssued


Common
Period End2020-12-312019-12-312018-12-312017-12-31
Value4848480.0
Percentage of CommonStockSharesIssued100.0100.0100.00.0

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStockSharesOutstanding


Common
Period End2020-12-312019-12-312018-12-312017-12-31
Value4848480.0
Percentage of CommonStockSharesOutstanding100.0100.0100.00.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value4848484848484848484848
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value4848484747474747484848
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


Antidilutive
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-03-31
Value1800000.01800000.01600000.01600000.01500000.01600000.01700000.01700000.000
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.00.00.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.430.330.210.640.690.650.440.680.660.570.560.070.460.450.480.420.450.48
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.430.320.210.640.680.650.430.670.650.560.560.070.460.450.480.420.450.48
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:AllocatedShareBasedCompensationExpense


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value4.14.76.05.25.13.73.54.03.73.42.42.72.62.22.32.3
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.81.11.31.11.00.80.80.90.90.80.60.70.70.60.70.6

Benefits Losses And Expenses

us-gaap:BenefitsLossesAndExpenses

us-gaap:BenefitsLossesAndExpenses


Benefits
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value3.23.12.73.43.23.02.52.52.62.7
Percentage of BenefitsLossesAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.60.70.60.70.60.60.60.60.60.7

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value21161131332722323027293.122222319
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues4.23.82.56.56.75.64.97.26.96.67.90.86.56.36.85.4

Cost Of Goods And Services Sold

us-gaap:CostOfGoodsAndServicesSold

us-gaap:CostOfGoodsAndServicesSold


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value417361375390396391369356345332310308283285282290275319
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues81.082.081.879.779.680.282.680.279.681.083.081.680.280.681.279.478.180.7

Cost Of Revenue

us-gaap:CostOfRevenue

us-gaap:CostOfRevenue


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value417361375390396391369356345332310308283285282290275319
Percentage of CostOfRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues81.082.081.879.779.680.282.680.279.681.083.081.680.280.681.279.478.180.7

Costs And Expenses

us-gaap:CostsAndExpenses

us-gaap:CostsAndExpenses


Costs
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value483417442447450443416402391373
Percentage of CostsAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues93.994.896.391.490.490.893.290.490.390.9

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value25201040454228414035286.6293021333638
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues4.94.62.48.29.08.66.49.49.48.77.71.78.38.56.29.210.39.7

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value4.24.40.39.111107.49.29.07.91.13.46.88.0-2.1131414
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.81.00.11.92.42.11.72.12.11.90.30.91.92.3-0.63.64.13.7

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value6.62.12.22.32.83.31.71.61.61.90.90.00.00.0
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0
Percentage of Revenues1.30.50.50.50.60.70.40.40.40.50.20.00.00.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value20151031333121323127273.2222223202123
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues4.03.62.36.46.76.54.77.37.36.77.40.86.46.36.85.66.26.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value20151031333121323127
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues4.03.62.36.46.76.54.77.37.36.7
Percentage of Revenues us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.0

Net Income Loss Available To Common Stockholders Basic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value20151031333121323127273.22222
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues4.03.62.36.36.66.44.77.37.36.77.30.86.46.3

Net Income Loss Available To Common Stockholders Diluted

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value20151031333121323127273.22222
Percentage of NetIncomeLossAvailableToCommonStockholdersDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues4.03.62.36.36.66.44.77.37.36.77.30.86.46.3

Operating Expenses

us-gaap:OperatingExpenses

us-gaap:OperatingExpenses


Operating
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value6656575351416402391373347372322323324332
Percentage of OperatingExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues12.912.811.810.810.693.290.490.390.992.998.391.391.293.490.8

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value31221642474530424237266.4303123333539
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues6.15.23.78.69.69.26.89.69.79.17.11.78.78.86.69.210.010.0

us-gaap:OperatingIncomeLoss us-gaap:BusinessAcquisition

aca:CherryIndustries


Operating
Period End2020-12-312020-09-302020-06-302020-03-31
Value4.56.98.15.7
Percentage of OperatingIncomeLoss26.816.416.912.6
Percentage of Revenues1.01.41.61.2
Percentage of Revenues aca:CherryIndustries0.016.518.013.0

aca:StonePoint


Operating
Period End2021-06-30
Value-3.3
Percentage of OperatingIncomeLoss-10.5
Percentage of Revenues-0.6
Percentage of Revenues aca:StonePoint-8.4

us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-17.0-14.5-16.5-17.0-13.3-10.9-12.5-11.5-12.8-10.5-7.4-9.1-7.9-7.7
Percentage of OperatingIncomeLoss-54.3-63.3-98.2-40.4-27.8-24.2-41.0-26.9-30.3-28.2-27.7-142.2-25.8-24.7
Percentage of Revenues-3.3-3.3-3.6-3.5-2.7-2.2-2.8-2.6-2.9-2.6-2.0-2.4-2.2-2.2
Percentage of Revenues us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value48373359615643545547341538383444
Percentage of OperatingIncomeLoss154.3163.3198.2140.4127.8124.2141.0126.9130.3128.2128.8242.2125.8124.7148.9131.5
Percentage of Revenues9.48.57.312.112.311.59.612.212.711.69.24.110.911.09.912.1
Percentage of Revenues us-gaap:OperatingSegments9.48.50.012.112.211.40.012.212.711.60.04.110.910.90.012.0

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

us-gaap:OperatingSegments, aca:ConstructionProducts


Operating
Period End2021-06-302021-03-312020-06-302020-03-31
Value17152416
Percentage of OperatingIncomeLoss57.269.050.837.3
Percentage of Revenues3.53.64.93.4
Percentage of Revenues us-gaap:OperatingSegments aca:ConstructionProducts8.810.316.411.2

us-gaap:OperatingSegments, aca:ConstructionProductsGroup


Operating
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value2024167.41617115.11517121113
Percentage of OperatingIncomeLoss49.450.837.324.338.641.430.319.1239.157.539.748.540.5
Percentage of Revenues4.24.93.41.73.74.02.81.44.05.03.53.23.7
Percentage of Revenues us-gaap:OperatingSegments aca:ConstructionProductsGroup14.216.411.20.014.215.110.70.021.121.017.70.019.6

us-gaap:OperatingSegments, aca:EnergyEquipmentGroup


Operating
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value2020242026252816-13.28.2171520
Percentage of OperatingIncomeLoss49.243.755.268.562.159.175.660.3-206.226.856.165.861.9
Percentage of Revenues4.24.25.14.76.05.86.94.3-3.52.34.94.45.7
Percentage of Revenues us-gaap:OperatingSegments aca:EnergyEquipmentGroup9.39.411.20.012.712.213.50.0-6.74.68.90.09.6

us-gaap:OperatingSegments, aca:EngineeredStructures


Operating
Period End2021-06-302021-03-312020-06-302020-03-31
Value29172024
Percentage of OperatingIncomeLoss93.076.443.755.2
Percentage of Revenues5.64.04.25.1
Percentage of Revenues us-gaap:OperatingSegments aca:EngineeredStructures12.08.59.411.2

us-gaap:OperatingSegments, aca:TransportationProducts


Operating
Period End2021-06-302021-03-312020-06-302020-03-31
Value1.34.11514
Percentage of OperatingIncomeLoss4.217.933.331.7
Percentage of Revenues0.30.93.22.9
Percentage of Revenues us-gaap:OperatingSegments aca:TransportationProducts1.95.112.412.2

us-gaap:OperatingSegments, aca:TransportationProductsGroup


Operating
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1715141411128.31313129.0
Percentage of OperatingIncomeLoss41.833.331.748.226.229.822.349.4210.941.528.8
Percentage of Revenues3.63.22.93.32.52.92.03.53.63.62.5
Percentage of Revenues us-gaap:OperatingSegments aca:TransportationProductsGroup14.612.412.20.09.310.98.50.012.413.910.1

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

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value200000.0100000.0200000.0200000.0400000.0-1100000.0200000.0-100000.0100000.0300000.0-400000.0-100000.0200000.0300000.0
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.00.00.00.00.1-0.20.0-0.00.00.1-0.1-0.00.10.1

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value800000.01000000.0900000.0700000.0300000.0-4300000.0900000.0-600000.0-1700000.0-600000.01700000.0-100000.0200000.0300000.00-800000.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0
Percentage of Revenues0.20.20.20.10.1-0.90.2-0.1-0.4-0.10.5-0.00.10.10.0-0.2

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value800000.01000000.0900000.0700000.0300000.0-4300000.0900000.0-600000.0-1700000.0-600000.01700000.0-100000.0200000.0300000.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.20.20.20.10.1-0.90.2-0.1-0.4-0.10.5-0.00.10.1
Percentage of Revenues us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value300000.0-500000.0-3800000.0500000.0100000.0200000.0-300000.0700000.0100000.0200000.03000000.0200000.0-1200000.0-1000000.0-1600000.0200000.0
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.1-0.1-0.80.10.00.0-0.10.20.00.00.80.1-0.3-0.3-0.50.1

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value515440458490498488446445434410374378353354347365352396
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:BusinessAcquisition

aca:CherryIndustries


Revenuesus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-31
Value42414443
Percentage of Revenues9.38.59.09.0
Percentage of Revenues9.38.59.09.0
Percentage of Revenues aca:CherryIndustries100.0100.0100.0100.0

aca:StonePoint


Revenuesus-gaap:
Period End2021-06-30
Value39
Percentage of Revenues7.6
Percentage of Revenues7.6
Percentage of Revenues aca:StonePoint100.0

us-gaap:Revenues us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:ConsolidationEliminations, us-gaap:IntersegmentElimination


Revenuesus-gaap:
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-0.10.1-0.2-0.7-1.4-0.6-1.7-1.1-1.7-0.3-0.9-0.8-1.4-0.6-1.3
Percentage of Revenues-0.00.0-0.0-0.1-0.3-0.1-0.4-0.3-0.4-0.1-0.2-0.2-0.4-0.2-0.4
Percentage of Revenues-0.00.0-0.0-0.1-0.3-0.1-0.4-0.3-0.4-0.1-0.2-0.2-0.4-0.2-0.4
Percentage of Revenues srt:ConsolidationEliminations us-gaap:IntersegmentElimination100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:ConsolidationItems

us-gaap:OperatingSegments


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value515440458490499489447446435412374379353355348367
Percentage of Revenues100.0100.0100.0100.0100.1100.3100.1100.4100.3100.4100.1100.2100.2100.4100.2100.4
Percentage of Revenues100.0100.0100.0100.0100.1100.3100.1100.4100.3100.4100.1100.2100.2100.4100.2100.4
Percentage of Revenues us-gaap:OperatingSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, aca:ConstructionProducts


Revenuesus-gaap:
Period End2021-06-302021-03-312020-06-302020-03-31
Value204153148149
Percentage of Revenues39.734.829.730.6
Percentage of Revenues39.734.829.730.6
Percentage of Revenues us-gaap:OperatingSegments aca:ConstructionProducts100.0100.0100.0100.0

us-gaap:OperatingSegments, aca:ConstructionProductsGroup


Revenuesus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value146148149102115115106657283706469
Percentage of Revenues30.029.730.622.926.026.625.817.519.223.819.818.419.0
Percentage of Revenues30.029.730.622.926.026.625.817.519.223.819.818.419.0
Percentage of Revenues us-gaap:OperatingSegments aca:ConstructionProductsGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, aca:EnergyEquipmentGroup


Revenuesus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value222222223213210204209207198178196192217
Percentage of Revenues45.444.745.747.747.247.150.955.352.450.555.455.559.4
Percentage of Revenues45.444.745.747.747.247.150.955.352.450.555.455.559.4
Percentage of Revenues us-gaap:OperatingSegments aca:EnergyEquipmentGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, aca:EngineeredStructures


Revenuesus-gaap:
Period End2021-06-302021-03-312020-06-302020-03-31
Value242207222223
Percentage of Revenues47.147.044.745.7
Percentage of Revenues47.147.044.745.7
Percentage of Revenues us-gaap:OperatingSegments aca:EngineeredStructures100.0100.0100.0100.0

us-gaap:OperatingSegments, aca:TransportationProducts


Revenuesus-gaap:
Period End2021-06-302021-03-312020-06-302020-03-31
Value6880128117
Percentage of Revenues13.218.225.724.0
Percentage of Revenues13.218.225.724.0
Percentage of Revenues us-gaap:OperatingSegments aca:TransportationProducts100.0100.0100.0100.0

us-gaap:OperatingSegments, aca:TransportationProductsGroup


Revenuesus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value120128117132120115971021089189
Percentage of Revenues24.625.724.029.627.126.623.727.328.725.925.2
Percentage of Revenues24.625.724.029.627.126.623.727.328.725.925.2
Percentage of Revenues us-gaap:OperatingSegments aca:TransportationProductsGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

aca:AggregatesAndSpecialtyMaterialsDomain, aca:ConstructionProducts


Revenuesus-gaap:
Period End2021-06-302021-03-312020-06-302020-03-31
Value181135132132
Percentage of Revenues35.230.726.527.1
Percentage of Revenues35.230.726.527.1
Percentage of Revenues aca:AggregatesAndSpecialtyMaterialsDomain aca:ConstructionProducts100.0100.0100.0100.0

aca:ConstructionaggregatesDomain, aca:ConstructionProductsGroup


Revenuesus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value12813213286969388515261524953
Percentage of Revenues26.326.527.119.321.821.521.513.714.017.314.814.314.6
Percentage of Revenues26.326.527.119.321.821.521.513.714.017.314.814.314.6
Percentage of Revenues aca:ConstructionaggregatesDomain aca:ConstructionProductsGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

aca:InlandbargeDomain, aca:TransportationProducts


Revenuesus-gaap:
Period End2021-06-302021-03-312020-06-302020-03-31
Value495710789
Percentage of Revenues9.513.121.518.2
Percentage of Revenues9.513.121.518.2
Percentage of Revenues aca:InlandbargeDomain aca:TransportationProducts100.0100.0100.0100.0

aca:InlandbargeDomain, aca:TransportationProductsGroup


Revenuesus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value991078910077664947494230
Percentage of Revenues20.321.518.222.617.415.212.012.613.012.28.7
Percentage of Revenues20.321.518.222.617.415.212.012.613.012.28.7
Percentage of Revenues aca:InlandbargeDomain aca:TransportationProductsGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

aca:Other, aca:ConstructionProducts


Revenuesus-gaap:
Period End2021-06-302021-03-312020-06-302020-03-31
Value23171617
Percentage of Revenues4.54.13.23.5
Percentage of Revenues4.54.13.23.5
Percentage of Revenues aca:Other aca:ConstructionProducts100.0100.0100.0100.0

aca:Other, aca:ConstructionProductsGroup


Revenuesus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value18161716192217141922171416
Percentage of Revenues3.73.23.53.64.35.24.33.85.26.55.04.14.4
Percentage of Revenues3.73.23.53.64.35.24.33.85.26.55.04.14.4
Percentage of Revenues aca:Other aca:ConstructionProductsGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

aca:Other, aca:EnergyEquipmentGroup


Revenuesus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value41454657505350515145485550
Percentage of Revenues8.49.29.612.811.312.312.313.813.612.913.815.913.7
Percentage of Revenues8.49.29.612.811.312.312.313.813.612.913.815.913.7
Percentage of Revenues aca:Other aca:EnergyEquipmentGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

aca:SteelcomponentsDomain, aca:TransportationProducts


Revenuesus-gaap:
Period End2021-06-302021-03-312020-06-302020-03-31
Value19222128
Percentage of Revenues3.75.14.35.7
Percentage of Revenues3.75.14.35.7
Percentage of Revenues aca:SteelcomponentsDomain aca:TransportationProducts100.0100.0100.0100.0

aca:SteelcomponentsDomain, aca:TransportationProductsGroup


Revenuesus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2121283143494854594858
Percentage of Revenues4.34.35.77.09.711.311.714.715.613.816.5
Percentage of Revenues4.34.35.77.09.711.311.714.715.613.816.5
Percentage of Revenues aca:SteelcomponentsDomain aca:TransportationProductsGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

aca:StorageTanks, aca:EngineeredStructures


Revenuesus-gaap:
Period End2021-06-302021-03-312020-06-302020-03-31
Value50434546
Percentage of Revenues9.99.89.29.6
Percentage of Revenues9.99.89.29.6
Percentage of Revenues aca:StorageTanks aca:EngineeredStructures100.0100.0100.0100.0

aca:UtilityWindAndRelatedStructuresDomain, aca:EngineeredStructures


Revenuesus-gaap:
Period End2021-06-302021-03-312020-06-302020-03-31
Value191164176176
Percentage of Revenues37.237.235.536.1
Percentage of Revenues37.237.235.536.1
Percentage of Revenues aca:UtilityWindAndRelatedStructuresDomain aca:EngineeredStructures100.0100.0100.0100.0

aca:WindtowersandutilitystructuresDomain, aca:EnergyEquipmentGroup


Revenuesus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value181176176156159151158155147133147137167
Percentage of Revenues37.035.536.134.935.934.838.641.538.837.741.639.645.7
Percentage of Revenues37.035.536.134.935.934.838.641.538.837.741.639.645.7
Percentage of Revenues aca:WindtowersandutilitystructuresDomain aca:EnergyEquipmentGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312016-12-31
Value30902666264626352560262123022218217121422172161016021526
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value1342661212524
Percentage of Assets5.111.65.61.61.6
Percentage of Assets5.111.65.61.61.6
Percentage of Assets us-gaap:CorporateNonSegment100.0100.0100.0100.0100.0

us-gaap:OperatingSegments


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value25122036205115771501
Percentage of Assets94.988.494.498.498.4
Percentage of Assets94.988.494.498.498.4
Percentage of Assets us-gaap:OperatingSegments100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:StatementBusinessSegments

aca:ConstructionProducts


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-31
Value1207785769
Percentage of Assets45.634.135.4
Percentage of Assets45.634.135.4
Percentage of Assets aca:ConstructionProducts100.0100.0100.0

aca:EngineeredStructures


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-31
Value1028934976
Percentage of Assets38.940.644.9
Percentage of Assets38.940.644.9
Percentage of Assets aca:EngineeredStructures100.0100.0100.0

aca:TransportationProducts


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-31
Value276316305
Percentage of Assets10.413.714.0
Percentage of Assets10.413.714.0
Percentage of Assets aca:TransportationProducts100.0100.0100.0

us-gaap:Assets us-gaap:StatementGeographical

country:MX


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-31
Value188202203172
Percentage of Assets7.18.89.410.8
Percentage of Assets7.18.89.410.8
Percentage of Assets country:MX100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value1169754754753711805512452437437487206194
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets37.928.328.528.627.830.722.220.420.120.422.512.912.1

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value3090266626462635256026212302221821712142217216101602
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value19201911189218811849181617901765173417051684140313941372140713411368
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets62.171.771.571.472.269.377.879.679.979.677.587.10.00.087.987.90.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value-20.3-21.1-22.1-23.0-23.7-24.0-19.7-20.6-20.0-18.3-17.7-19.4-19.3-19.5-19.8-18.4-18.3
Percentage of StockholdersEquity-1.1-1.1-1.2-1.2-1.3-1.3-1.1-1.2-1.2-1.1-1.1-1.4-1.4-1.4-1.4-1.4-1.3
Percentage of Assets-0.7-0.8-0.8-0.9-0.9-0.9-0.9-0.9-0.9-0.9-0.8-1.20.00.0-1.2-1.20.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value168816991694169516891690168616841679169016850.00.00.00.00.00.0
Percentage of StockholdersEquity87.988.989.590.191.493.194.295.496.999.1100.10.00.00.00.00.00.0
Percentage of Assets54.763.764.064.466.064.573.376.077.378.977.60.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value0.50.50.50.50.50.50.50.50.50.50.50.00.00.00.00.00.0
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value2512332192111821521221047444190.00.00.00.00.00.0
Percentage of StockholdersEquity13.112.211.611.39.98.46.95.94.32.61.20.00.00.00.00.00.0
Percentage of Assets8.18.78.38.07.15.85.34.73.42.10.90.00.00.00.00.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value-0.7-3.40.0-3.00.0-3.20.0-11.9-3.50.00.00.00.00.00.0
Percentage of StockholdersEquity-0.0-0.20.0-0.20.0-0.20.0-0.7-0.20.00.00.00.00.00.0
Percentage of Assets-0.0-0.10.0-0.10.0-0.10.0-0.6-0.20.00.00.00.00.00.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value784697664740705772757674622617667449428
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets25.426.225.128.127.629.432.930.428.728.830.727.926.8

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312015-12-31
Value1008195189148200240127831189910106.76.8101410
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.23.13.67.25.87.710.45.73.85.54.60.60.00.00.40.00.90.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2020-12-312019-12-312018-12-312017-12-31
Value95240996.8
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0
Percentage of Assets3.610.44.60.4

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value314289260232217238200213228206291174165
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets10.210.89.88.88.59.18.79.610.59.613.410.910.3

Inventory Net

us-gaap:InventoryNet

us-gaap:InventoryNet


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value339289276289314303283306291271252234246
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.010.910.511.012.311.612.313.813.412.711.614.615.4

Other Assets Current

us-gaap:OtherAssetsCurrent

us-gaap:OtherAssetsCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value3037322825293327192223309.9
Percentage of OtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.01.41.21.11.01.11.51.20.91.01.11.90.6

Noncurrent Assets

us-gaap:NoncurrentAssets us-gaap:StatementGeographical

us-gaap:NoncurrentAssets

country:MX


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-31
Value89858591
Percentage of NoncurrentAssets100.0100.0100.0100.0
Percentage of Assets3.43.73.95.7
Percentage of Assets country:MX47.742.342.153.3

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value1935160915941552152715031406139513771345132810781064
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets62.660.460.258.959.657.461.162.963.462.861.267.066.4

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

us-gaap:BuildingAndBuildingImprovements


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value315306302300299291280276273271267256265
Percentage of PropertyPlantAndEquipmentGross16.319.119.019.319.619.419.919.819.920.120.123.725.0
Percentage of Assets10.211.511.411.411.711.112.212.512.612.612.315.916.6
Percentage of Assets us-gaap:BuildingAndBuildingImprovements0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ConstructionInProgress


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value47564938353838473431283224
Percentage of PropertyPlantAndEquipmentGross2.53.53.12.52.42.62.73.42.52.32.23.02.3
Percentage of Assets1.52.11.91.51.41.51.72.11.61.51.32.01.5
Percentage of Assets us-gaap:ConstructionInProgress0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Land


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value1431391393703693673313313323163169497
Percentage of PropertyPlantAndEquipmentGross7.48.78.723.924.224.423.623.824.123.523.88.89.2
Percentage of Assets4.65.25.314.114.414.014.415.015.314.814.65.96.1
Percentage of Assets us-gaap:Land0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MachineryAndEquipment


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value945858853842822805755739736726715694676
Percentage of PropertyPlantAndEquipmentGross48.853.453.554.353.953.653.753.053.554.053.964.463.6
Percentage of Assets30.632.232.332.032.130.732.833.433.933.933.043.242.2
Percentage of Assets us-gaap:MachineryAndEquipment0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProductiveLand


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value483247249231231230211209209201
Percentage of PropertyPlantAndEquipmentGross25.015.415.714.915.215.315.015.015.215.2
Percentage of Assets15.69.39.48.89.18.89.29.49.69.3
Percentage of Assets us-gaap:ProductiveLand0.00.00.00.00.00.00.00.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value728704681657634612590580562543525507481
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets23.626.425.724.924.823.325.626.225.925.424.231.530.1

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value1206905913894892891816815814801803570583
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets39.034.034.534.034.934.035.436.737.537.437.035.436.4

us-gaap:PropertyPlantAndEquipmentNet us-gaap:PropertyPlantAndEquipmentByType

aca:ManufacturingFacilityNonoperating


Property
Period End2020-12-312019-12-312018-12-31
Value324746
Percentage of PropertyPlantAndEquipmentNet3.65.85.8
Percentage of Assets1.22.12.2
Percentage of Assets aca:ManufacturingFacilityNonoperating0.00.00.0

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value806791794776758752621626631616615504494
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets26.129.730.029.429.628.727.028.329.128.828.331.330.8

us-gaap:Goodwill us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments

aca:ACGMaterials, aca:ConstructionProducts


Goodwillus-gaap:
Period End2020-12-31
Value105
Percentage of Goodwill13.3
Percentage of Assets4.0
Percentage of Assets aca:ACGMaterials aca:ConstructionProducts0.0

aca:CherryIndustries, aca:ConstructionProductsGroup


Goodwillus-gaap:
Period End2020-09-302020-06-302020-03-31
Value127125125
Percentage of Goodwill16.516.616.7
Percentage of Assets4.94.94.8
Percentage of Assets aca:CherryIndustries aca:ConstructionProductsGroup0.00.00.0

aca:StonePoint, aca:ConstructionProducts


Goodwillus-gaap:
Period End2021-06-30
Value12
Percentage of Goodwill1.6
Percentage of Assets0.4
Percentage of Assets aca:StonePoint aca:ConstructionProducts0.0

us-gaap:Goodwill us-gaap:StatementBusinessSegments

aca:ConstructionProducts


Goodwillus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-31
Value331316320166
Percentage of Goodwill41.140.040.326.7
Percentage of Assets10.711.912.17.2
Percentage of Assets aca:ConstructionProducts0.00.026.521.2

aca:ConstructionProductsGroup


Goodwillus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value3072932941661701751721716060
Percentage of Goodwill39.638.839.126.727.327.828.027.912.012.2
Percentage of Assets11.711.511.27.27.78.18.17.93.73.8
Percentage of Assets aca:ConstructionProductsGroup0.00.00.021.20.00.00.022.30.015.4

aca:EnergyEquipmentGroup


Goodwillus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value431427419416416416416416416416
Percentage of Goodwill55.656.355.867.066.566.067.667.882.784.3
Percentage of Assets16.416.716.018.118.819.219.519.225.926.0
Percentage of Assets aca:EnergyEquipmentGroup0.00.00.044.60.00.00.042.70.044.9

aca:EngineeredStructures


Goodwillus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-31
Value437437437416
Percentage of Goodwill54.355.355.067.0
Percentage of Assets14.216.416.518.1
Percentage of Assets aca:EngineeredStructures0.00.042.544.6

aca:TransportationProducts


Goodwillus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-31
Value37373738
Percentage of Goodwill4.64.74.76.2
Percentage of Assets1.21.41.41.7
Percentage of Assets aca:TransportationProducts0.00.013.412.3

aca:TransportationProductsGroup


Goodwillus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value373738383838262617
Percentage of Goodwill4.84.95.26.26.26.14.34.33.5
Percentage of Assets1.41.41.51.71.71.81.21.21.1
Percentage of Assets aca:TransportationProductsGroup0.00.00.012.30.00.00.08.76.6

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-312018-12-312017-12-31
Value227211212163146515564
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.47.98.06.25.72.22.54.0

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:FiniteLivedIntangibleAssetsNet


Finite
Period End2021-06-302021-03-312020-12-312019-12-31
Value19317717817
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0
Percentage of Assets6.36.76.80.8

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset us-gaap:BalanceSheetLocation

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssets


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value19161716141515
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.60.70.60.60.60.7
Percentage of Assets us-gaap:OtherAssets0.00.00.00.00.00.00.0

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value514446454218992949599807687
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.71.71.71.71.67.24.04.34.44.63.74.85.5

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value20117514413710811390827379866056
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.56.65.45.24.24.33.93.73.43.74.03.83.5

Accrued Liabilities Current

us-gaap:AccruedLiabilitiesCurrent

us-gaap:AccruedLiabilitiesCurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value12110211511611899119140129164146109118
Percentage of AccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.93.84.44.44.63.85.26.35.97.76.76.87.4

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value353312310312285279284223203245234170174
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.411.711.711.811.210.612.310.19.411.510.810.610.9

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent us-gaap:BalanceSheetLocation

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:AccruedLiabilities


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value4700000.04000000.04800000.05400000.04700000.05200000.05500000.0
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.20.20.20.20.20.2
Percentage of Assets us-gaap:AccruedLiabilities0.00.00.00.00.00.00.0

Other Liabilities Current

us-gaap:OtherLiabilitiesCurrent

us-gaap:OtherLiabilitiesCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value21284454546170
Percentage of OtherLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.71.11.72.12.12.33.1

Debt And Capital Lease Obligations

us-gaap:DebtAndCapitalLeaseObligations

us-gaap:DebtAndCapitalLeaseObligations


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value6532552542542563561071071071051850.5
Percentage of DebtAndCapitalLeaseObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets21.29.69.69.710.013.64.74.85.04.98.50.0

Long Term Debt And Capital Lease Obligations

us-gaap:LongTermDebtAndCapitalLeaseObligations

us-gaap:LongTermDebtAndCapitalLeaseObligations


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value6452502482502523521031061061031830.30.4
Percentage of LongTermDebtAndCapitalLeaseObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets20.99.49.49.59.813.44.54.84.94.88.50.00.0

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxLiabilitiesNet


Deferred
Period End2020-12-312019-12-312018-12-312017-12-31
Value11252512.2
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0
Percentage of Assets4.32.32.40.1

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value7978838473755859582611199.1
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.62.93.13.22.92.92.52.72.71.30.51.20.6

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent us-gaap:BalanceSheetLocation

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OtherLiabilities


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value17151614131413
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.60.60.60.50.50.6
Percentage of Assets us-gaap:OtherLiabilities0.00.00.00.00.00.00.0

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
Value3600000.02800000.03700000.03400000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0100.0100.0100.0
Percentage of Assets0.10.10.10.1

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
Value3100000.02500000.02700000.02500000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0100.0100.0100.0
Percentage of Assets0.10.10.10.1

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value2400000.02200000.02400000.02200000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0100.0100.0100.0
Percentage of Assets0.10.10.10.1

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value2200000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.1

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value108.98.97.5
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0100.0100.0100.0
Percentage of Assets0.30.30.30.3

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value2219212018191921
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.70.70.80.80.70.70.81.0

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value27232522
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0100.0100.0100.0
Percentage of Assets0.90.91.00.9

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value5300000.04300000.04500000.02800000.0
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0100.0100.0100.0
Percentage of Assets0.20.20.20.1

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value19201911189218811849181617901765173417051684140313941372140713411368
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets62.171.771.571.472.269.377.879.679.979.677.587.10.00.087.987.90.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value-20.3-21.1-22.1-23.0-23.7-24.0-19.7-20.6-20.0-18.3-17.7-19.4-19.3-19.5-19.8-18.4-18.3
Percentage of StockholdersEquity-1.1-1.1-1.2-1.2-1.3-1.3-1.1-1.2-1.2-1.1-1.1-1.4-1.4-1.4-1.4-1.4-1.3
Percentage of Assets-0.7-0.8-0.8-0.9-0.9-0.9-0.9-0.9-0.9-0.9-0.8-1.20.00.0-1.2-1.20.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value168816991694169516891690168616841679169016850.00.00.00.00.00.0
Percentage of StockholdersEquity87.988.989.590.191.493.194.295.496.999.1100.10.00.00.00.00.00.0
Percentage of Assets54.763.764.064.466.064.573.376.077.378.977.60.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value0.50.50.50.50.50.50.50.50.50.50.50.00.00.00.00.00.0
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value2512332192111821521221047444190.00.00.00.00.00.0
Percentage of StockholdersEquity13.112.211.611.39.98.46.95.94.32.61.20.00.00.00.00.00.0
Percentage of Assets8.18.78.38.07.15.85.34.73.42.10.90.00.00.00.00.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value-0.7-3.40.0-3.00.0-3.20.0-11.9-3.50.00.00.00.00.00.0
Percentage of StockholdersEquity-0.0-0.20.0-0.20.0-0.20.0-0.7-0.20.00.00.00.00.00.0
Percentage of Assets-0.0-0.10.0-0.10.0-0.10.0-0.6-0.20.00.00.00.00.00.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value-4000000.0-4600000.0-5500000.0-6200000.0-6700000.0-6600000.0-3400000.0-4100000.0-3600000.0-1800000.0-900000.0000000
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.0
Percentage of Assets-0.1-0.2-0.2-0.2-0.3-0.3-0.1-0.2-0.2-0.1-0.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-312015-12-31
Value-20300000.0-21100000.0-22100000.0-23000000.0-23700000.0-24000000.0-19700000.0-20600000.0-20000000.0-18300000.0-17700000.0-19800000.0-18400000.0-18300000.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest507.5458.7401.8371.0353.7363.6579.4502.4555.61016.71966.70.00.00.0
Percentage of Assets-0.7-0.8-0.8-0.9-0.9-0.9-0.9-0.9-0.9-0.9-0.8-1.2-1.20.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value-16300000.0-16500000.0-16600000.0-16800000.0-17000000.0-17400000.0-16300000.0-16500000.0-16400000.0-16500000.0-16800000.0-19400000.0-19300000.0-19500000.0-19800000.0-18400000.0-18300000.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest407.5358.7301.8271.0253.7263.6479.4402.4455.6916.71866.70.00.00.00.00.00.0
Percentage of Assets-0.5-0.6-0.6-0.6-0.7-0.7-0.7-0.7-0.8-0.8-0.8-1.20.00.0-1.2-1.20.0
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value500000.0500000.0500000.0500000.0500000.0500000.0500000.0500000.0500000.0500000.0500000.00
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.0

Additional Paid In Capital

us-gaap:AdditionalPaidInCapital

us-gaap:AdditionalPaidInCapital


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value168816991694169516891690168616841679169016850.0
Percentage of AdditionalPaidInCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets54.763.764.064.466.064.573.376.077.378.977.60.0

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value2512332192111821521221047444190.0
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets8.18.78.38.07.15.85.34.73.42.10.90.0

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value-20300000.0-21100000.0-22100000.0-23000000.0-23700000.0-24000000.0-19700000.0-20600000.0-20000000.0-18300000.0-17700000.0-19400000.0-19800000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.7-0.8-0.8-0.9-0.9-0.9-0.9-0.9-0.9-0.9-0.8-1.2-1.2

Treasury Stock Value

us-gaap:TreasuryStockValue

us-gaap:TreasuryStockValue


Treasury
Period End2021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value0.73.40.03.00.03.20.0113.50.0
Percentage of TreasuryStockValue100.0100.00.0100.00.0100.00.0100.0100.00.0
Percentage of Assets0.00.10.00.10.00.10.00.60.20.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value500.433106784113977161250.013158927
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0
Percentage of Revenues9.80.17.221.715.88.531.317.53.730.40.03.54.425.38.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value-408700000.0-10400000.0-118500000.0-59200000.0-25100000.0-325400000.0-22000000.0-27900000.0-42200000.0-17300000.0-309100000.0-11100000.0-12400000.0-31900000.0-35100000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-79.3-2.4-25.8-12.1-5.0-66.7-4.9-6.3-9.7-4.2-82.6-2.9-3.5-9.0-10.1

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value376-3.9-7.9-6.6-106.0244-4.9-5.7-8.7-89.1398-2.30.6-57.84.0
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues73.1-0.9-1.7-1.3-21.350.0-1.1-1.3-2.0-21.7106.3-0.60.2-16.31.2

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
Value18-13.9-93.240-52.3-39.711244-34.718
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues3.6-3.2-20.38.3-10.5-8.125.39.9-8.04.5

Deferred Income Tax Expense Benefit

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DeferredIncomeTaxExpenseBenefit


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value4.81.32.54.7-0.83.22.45.65.93.4152.42.02.7-2.1
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Depreciation Depletion And Amortization

us-gaap:DepreciationDepletionAndAmortization

us-gaap:DepreciationDepletionAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value363131282726222121191716151717
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Accounts Payable

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsPayable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value18316.228-4.9147.49.6-6.6-6.913-8.815-0.3-1.6
Percentage of IncreaseDecreaseInAccountsPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value-2.531187.2-19.57.2-12.9-20.819-85.2919.914-35.510
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Inventories

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInInventories


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value2414-17.7-29.66.87.9-25.0151417-1.71728-14.5-3.9
Percentage of IncreaseDecreaseInInventories100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value500.433106784113977161250.013158927
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0
Percentage of Revenues9.80.17.221.715.88.531.317.53.730.40.03.54.425.38.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value20151031333121323127273.2222223202123
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues4.03.62.36.46.76.54.77.37.36.77.40.86.46.36.85.66.26.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value20151031333121323127
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues4.03.62.36.46.76.54.77.37.36.7
Percentage of Revenues us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value4.14.76.05.25.13.73.54.03.73.42.42.72.62.2
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value-408700000.0-10400000.0-118500000.0-59200000.0-25100000.0-325400000.0-22000000.0-27900000.0-42200000.0-17300000.0-309100000.0-11100000.0-12400000.0-31900000.0-35100000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-79.3-2.4-25.8-12.1-5.0-66.7-4.9-6.3-9.7-4.2-82.6-2.9-3.5-9.0-10.1

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value211925132221242220181112127.636
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value376-3.9-7.9-6.6-106.0244-4.9-5.7-8.7-89.1398-2.30.6-57.84.0
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues73.1-0.9-1.7-1.3-21.350.0-1.1-1.3-2.0-21.7106.3-0.60.2-16.31.2

Payments Of Dividends Common Stock

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsOfDividendsCommonStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2500000.02400000.02500000.02400000.02400000.02500000.02500000.02400000.02500000.02500000.02400000.0000
Percentage of PaymentsOfDividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:PaymentsOfDividendsCommonStock us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2500000.02400000.02500000.02400000.02400000.02500000.02500000.02400000.02500000.02500000.0
Percentage of PaymentsOfDividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value4.02.00.02.00.0
Percentage of PaymentsForRepurchaseOfCommonStock100.0100.00.0100.00.0

Debt Instrument Interest Rate Stated Percentage

us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentInterestRateStatedPercentage

us-gaap:UnsecuredDebt, us-gaap:SeniorNotes


Debt
Period End2021-04-06
Value4.375
Percentage of DebtInstrumentInterestRateStatedPercentage100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations us-gaap:UnsecuredDebt us-gaap:SeniorNotes0.0

us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:SubsequentEventType

us-gaap:SubsequentEvent


Debt
Period End2021-04-06
Value4.375
Percentage of DebtInstrumentInterestRateStatedPercentage100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations us-gaap:SubsequentEvent0.0

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:EffectiveIncomeTaxRateContinuingOperations


Effective
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value16.821.7-1.722.60.2620.2480.0070.220.2210.222-0.0720.5150.2310.265-0.080.391
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2020-12-312019-12-31
Value9752
Percentage of DeferredTaxLiabilities100.0100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2020-12-312019-12-312018-12-312017-12-31
Value6300000.04800000.05700000.07000000.0
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0

aca:BusinessAcquisitionProFormaIncomeBeforeIncomeTaxes us-gaap:BusinessAcquisition

aca:BusinessAcquisitionProFormaIncomeBeforeIncomeTaxes

aca:CherryIndustries


Business
Period End2020-09-302020-06-302020-03-31
Value414644
Percentage of BusinessAcquisitionProFormaIncomeBeforeIncomeTaxes100.0100.0100.0

aca:CARESActDeferredPayrollTaxPayments

aca:CARESActDeferredPayrollTaxPayments


C
Period End2021-06-302021-03-312020-12-31
Value09700000.03500000.0
Percentage of CARESActDeferredPayrollTaxPayments0.0100.0100.0

aca:CARESActDeferredTaxPayments

aca:CARESActDeferredTaxPayments


C
Period End2020-12-31
Value0.0
Percentage of CARESActDeferredTaxPayments0.0

aca:IncreaseDecreaseInAdvanceBillings

aca:IncreaseDecreaseInAdvanceBillings


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-6.999999999999998-16.1-9.14.4-17.5-9.450-2.11.0-0.1
Percentage of IncreaseDecreaseInAdvanceBillings100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

aca:MultiemployerPlanEmployerContributions

aca:MultiemployerPlanEmployerContributions


Multiemployer
Period End2021-06-302021-03-312020-09-302020-06-302019-09-302019-06-30
Value500000.0400000.0500000.0400000.0500000.0400000.0
Percentage of MultiemployerPlanEmployerContributions100.0100.0100.0100.0100.0100.0

aca:OtherIncomeExpenseNonoperating

aca:OtherIncomeExpenseNonoperating


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value100000.0100000.0-100000.0100000.0200000.00100000.0100000.0200000.0400000.0200000.0200000.000200000.0-300000.0
Percentage of OtherIncomeExpenseNonoperating100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0

aca:UsGaap_RevenueRemainingPerformanceObligationOrdersReceivedInPeriod us-gaap:ProductOrService, us-gaap:StatementBusinessSegments, us-gaap:SubsequentEventType

aca:UsGaap_RevenueRemainingPerformanceObligationOrdersReceivedInPeriod

aca:InlandbargeDomain, aca:TransportationProductsGroup, us-gaap:SubsequentEvent


Us
Period End2020-10-31
Value32
Percentage of UsGaap_RevenueRemainingPerformanceObligationOrdersReceivedInPeriod100.0

us-gaap:BusinessAcquisitionsProFormaRevenue us-gaap:BusinessAcquisition

us-gaap:BusinessAcquisitionsProFormaRevenue

aca:CherryIndustries


Business
Period End2020-09-302020-06-302020-03-31
Value490498488
Percentage of BusinessAcquisitionsProFormaRevenue100.0100.0100.0

us-gaap:BusinessCombinationAcquisitionRelatedCosts us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments

us-gaap:BusinessCombinationAcquisitionRelatedCosts

aca:StonePoint, aca:ConstructionProducts


Business
Period End2021-06-30
Value5400000.0
Percentage of BusinessCombinationAcquisitionRelatedCosts100.0

us-gaap:BusinessCombinationConsiderationTransferred1 us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments

us-gaap:BusinessCombinationConsiderationTransferred1

aca:AggregatesAndSpecialtyMaterialsDomain, aca:ConstructionProducts


Business
Period End2020-09-302019-09-30
Value259.4
Percentage of BusinessCombinationConsiderationTransferred1100.0100.0

aca:CherryIndustries, aca:ConstructionProductsGroup


Business
Period End2020-09-302020-06-302020-03-31
Value0.00.0296
Percentage of BusinessCombinationConsiderationTransferred10.00.00.0

aca:ConstructionaggregatesDomain, aca:ConstructionProductsGroup


Business
Period End2020-09-302019-09-30
Value259.4
Percentage of BusinessCombinationConsiderationTransferred198.8100.0

aca:RecycledAggregates, aca:ConstructionProducts


Business
Period End2020-12-31
Value87
Percentage of BusinessCombinationConsiderationTransferred10.0

aca:StonePoint, aca:ConstructionProducts


Business
Period End2021-06-30
Value374
Percentage of BusinessCombinationConsiderationTransferred10.0

aca:TelecomStructures, aca:EnergyEquipmentGroup


Business
Period End2020-09-30
Value27
Percentage of BusinessCombinationConsiderationTransferred1107.4

aca:TelecomStructures, aca:EngineeredStructures


Business
Period End2020-09-30
Value27
Percentage of BusinessCombinationConsiderationTransferred1107.8

us-gaap:BusinessCombinationConsiderationTransferred1 us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments, us-gaap:SubsequentEventType

aca:AggregatesAndSpecialtyMaterialsDomain, aca:ConstructionProducts, us-gaap:SubsequentEvent


Business
Period End2021-04-30
Value375
Percentage of BusinessCombinationConsiderationTransferred10.0

aca:RecycledAggregates, aca:ConstructionProductsGroup, us-gaap:SubsequentEvent


Business
Period End2020-10-31
Value87
Percentage of BusinessCombinationConsiderationTransferred10.0

aca:SouthwestRock, aca:ConstructionProducts, us-gaap:SubsequentEvent


Business
Period End2021-08-04
Value150
Percentage of BusinessCombinationConsiderationTransferred10.0

aca:TelecomStructures, aca:EnergyEquipmentGroup, us-gaap:SubsequentEvent


Business
Period End2020-07-31
Value27
Percentage of BusinessCombinationConsiderationTransferred10.0

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1 us-gaap:CreditFacility, us-gaap:LongtermDebtType, us-gaap:VariableRate

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1

us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit, us-gaap:LondonInterbankOfferedRateLIBOR


Debt
Period End2021-03-312020-03-31
Value1.250.015
Percentage of DebtInstrumentBasisSpreadOnVariableRate1100.0100.0

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1 us-gaap:Range, us-gaap:CreditFacility, us-gaap:LongtermDebtType

srt:Maximum, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Debt
Period End2021-03-312020-03-31
Value2.00.02
Percentage of DebtInstrumentBasisSpreadOnVariableRate1160.0133.3

srt:Minimum, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Debt
Period End2021-03-312020-03-31
Value1.250.0125
Percentage of DebtInstrumentBasisSpreadOnVariableRate1100.083.3

us-gaap:DefinedContributionPlanCostRecognized

us-gaap:DefinedContributionPlanCostRecognized


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2.62.72.2999999999999993.02.72.62.12.02.22.2
Percentage of DefinedContributionPlanCostRecognized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate

us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate


Effective
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value21.021.0020.7921.00.210000.2100.2100.2100.35
Percentage of EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate100.0100.00.0100.0100.0100.00.00.00.0100.00.0100.00.0100.00.0100.0

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax


Foreign
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value100000.0-600000.0-3700000.0300000.0-200000.00-800000.0300000.0-500000.0-500000.02400000.00-1200000.0-1000000.0-1900000.0500000.0
Percentage of ForeignCurrencyTransactionGainLossBeforeTax100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0

us-gaap:GainLossOnSaleOfPropertyPlantEquipment

us-gaap:GainLossOnSaleOfPropertyPlantEquipment


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value-600000.05900000.02800000.01800000.01000000.0800000.01400000.0700000.01500000.0400000.0-100000.0800000.0300000.0100000.0700000.0
Percentage of GainLossOnSaleOfPropertyPlantEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:GoodwillAcquiredDuringPeriod

aca:AggregatesAndSpecialtyMaterialsDomain, aca:ConstructionProducts


Goodwill
Period End2020-09-302019-09-302019-06-30
Value8.71.11.6
Percentage of GoodwillAcquiredDuringPeriod100.0100.0100.0

aca:ConstructionaggregatesDomain, aca:ConstructionProductsGroup


Goodwill
Period End2020-09-302019-09-302019-06-30
Value8.81.80.0
Percentage of GoodwillAcquiredDuringPeriod101.1163.60.0

aca:RecycledAggregates, aca:ConstructionProducts


Goodwill
Period End2020-12-31
Value4.0
Percentage of GoodwillAcquiredDuringPeriod0.0

aca:TelecomStructures, aca:EnergyEquipmentGroup


Goodwill
Period End2020-09-30
Value4.4
Percentage of GoodwillAcquiredDuringPeriod50.6

aca:TelecomStructures, aca:EngineeredStructures


Goodwill
Period End2020-09-30
Value8.5
Percentage of GoodwillAcquiredDuringPeriod97.7

us-gaap:IncreaseDecreaseInAccruedLiabilities

us-gaap:IncreaseDecreaseInAccruedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value3.4-10.2-16.3-14.321-20.16.96.1-7.19.234-8.20.6-6.2-4.3
Percentage of IncreaseDecreaseInAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherCurrentAssets

us-gaap:IncreaseDecreaseInOtherCurrentAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value-1.30000000000000055.46.93.0-4.0-7.88.47.5-2.7-1.69.41.41.6-1.60.0
Percentage of IncreaseDecreaseInOtherCurrentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:IncreaseDecreaseInOtherNoncurrentAssets

us-gaap:IncreaseDecreaseInOtherNoncurrentAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value-1300000.0-1500000.0400000.05100000.0-300000.02400000.01100000.00-1400000.01200000.0-2800000.0-1600000.0-1200000.0-800000.0800000.0
Percentage of IncreaseDecreaseInOtherNoncurrentAssets100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherNoncurrentLiabilities

us-gaap:IncreaseDecreaseInOtherNoncurrentLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value-8.1-4.04.09.3-2.00.21.80.10.41.9-5.54.00.2-0.40.3
Percentage of IncreaseDecreaseInOtherNoncurrentLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements


Incremental
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value500000.0800000.00400000.0500000.0600000.00400000.0500000.0600000.0100000.0000
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.00.00.00.0

us-gaap:InterestIncomeOther

us-gaap:InterestIncomeOther


Interest
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value100000.00100000.0100000.0200000.0400000.0300000.0400000.0300000.0400000.0000
Percentage of InterestIncomeOther100.00.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:LineOfCreditFacilityCommitmentFeePercentage us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:LineOfCreditFacilityCommitmentFeePercentage

us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Line
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value00.200.197500.0025
Percentage of LineOfCreditFacilityCommitmentFeePercentage0.0100.00.0100.00.0100.0

us-gaap:LineOfCreditFacilityCommitmentFeePercentage us-gaap:Range, us-gaap:CreditFacility, us-gaap:LongtermDebtType

srt:Maximum, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Line
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value00.3500.346500.0035
Percentage of LineOfCreditFacilityCommitmentFeePercentage0.0175.00.0175.40.0140.0

srt:Minimum, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Line
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value00.200.19800.002
Percentage of LineOfCreditFacilityCommitmentFeePercentage0.0100.00.0100.30.080.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax

us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value300000.0500000.0200000.00-500000.0-3400000.0600000.0-600000.0-1800000.0-1000000.0-900000.0000
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value500000.0600000.0400000.0200000.0-100000.0-4500000.0800000.0-700000.0-1700000.0-700000.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax166.7120.0200.00.020.0132.4133.3116.794.470.0

us-gaap:AccumulatedTranslationAdjustment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value200000.0100000.0200000.0200000.0400000.0-1100000.0200000.0-100000.0100000.0300000.0-400000.0-100000.0200000.0300000.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax66.720.0100.00.0-80.032.433.316.7-5.6-30.044.40.00.00.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax


Other
Period End2021-06-302021-03-312020-06-302020-03-31
Value300000.0500000.0-500000.0-3400000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax


Other
Period End2021-06-302021-03-312020-06-302020-03-31
Value0200000.0-200000.0-900000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax0.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax


Other
Period End2021-06-302021-03-312020-06-302020-03-31
Value-300000.0-400000.0-400000.0-200000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value100000.000100000.00-200000.000200000.0-200000.0-300000.0000
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax100.00.00.0100.00.0100.00.00.0100.0100.0100.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent

us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value600000.0900000.0700000.0500000.0-100000.0-3200000.0700000.0-500000.0-1800000.0-900000.0-900000.0000
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value800000.01000000.0900000.0700000.0300000.0-4300000.0900000.0-600000.0-1700000.0-600000.0
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent133.3111.1128.6140.0-300.0134.4128.6120.094.466.7

us-gaap:AccumulatedTranslationAdjustment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value200000.0100000.0200000.0200000.0400000.0-1100000.0200000.0-100000.0100000.0300000.02600000.0-100000.0200000.0300000.0
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent33.311.128.640.0-400.034.428.620.0-5.6-33.3-288.90.00.00.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-500000.0-500000.0-400000.0-200000.0-100000.0-100000.00-100000.00000
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax100.0100.0100.0100.0100.0100.00.0100.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-100000.0-100000.0-100000.0-100000.0-100000.00000000
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax100.0100.0100.0100.0100.00.00.00.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value200000.00-500000.0-3400000.0600000.0-600000.0-1800000.0-1000000.0-900000.0000
Percentage of OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax100.00.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value100000.00-200000.0-900000.0100000.0-100000.0-500000.0-200000.0-300000.0000
Percentage of OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax100.00.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:OtherNoncashIncomeExpense

us-gaap:OtherNoncashIncomeExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value3800000.0-2200000.0-1700000.03000000.0-100000.0-2000000.02200000.0-900000.01600000.01200000.09100000.0-6000000.000-100000.0
Percentage of OtherNoncashIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0

us-gaap:OtherPostretirementBenefitExpense

us-gaap:OtherPostretirementBenefitExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value600000.0400000.0400000.0400000.0500000.0400000.0400000.0500000.0400000.0500000.0
Percentage of OtherPostretirementBenefitExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic

us-gaap:ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic


Participating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value100000.0100000.0100000.0200000.0300000.0300000.0100000.0300000.0300000.0300000.0200000.0000
Percentage of ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:PaymentsOfOrdinaryDividends

us-gaap:PaymentsOfOrdinaryDividends


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2500000.02400000.02500000.02400000.02400000.02500000.02500000.02400000.02500000.02500000.0
Percentage of PaymentsOfOrdinaryDividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value9600000.0100000.0300000.0200000.03300000.00300000.003900000.0200000.0500000.0000
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.00.0100.00.0100.0100.0100.00.00.00.0

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value94474.53091.88.3220.03080.00.0250.0
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired100.0100.0100.0100.0100.0100.0100.00.0100.00.00.0100.00.0

us-gaap:ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet

us-gaap:ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-06-302019-03-312018-12-312017-12-31
Value0.01.10.12500.00.01800.0
Percentage of ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet0.0100.0100.0100.00.00.0100.00.0

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value000-1200000.0-1900000.000000-100000.0-3000000.0
Percentage of ProceedsFromPaymentsForOtherFinancingActivities0.00.00.0100.0100.00.00.00.00.00.0100.0100.0

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value1.69.50.71.91.95.14.22.51.50.77.61.50.40.71.4
Percentage of ProceedsFromSaleOfPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax us-gaap:StatementEquityComponents

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax

us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges


Reclassification
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value300000.0400000.0500000.0500000.0400000.0200000.0100000.0100000.00100000.00000
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Reclassification
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value300000.0400000.0500000.0500000.0400000.0200000.0-500000.0100000.00100000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax100.0100.0100.0100.0100.0100.0-500.0100.00.0100.0

us-gaap:ReclassificationFromAociCurrentPeriodTax us-gaap:StatementEquityComponents

us-gaap:ReclassificationFromAociCurrentPeriodTax

us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges


Reclassification
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-100000.0-100000.0-100000.0-200000.00-100000.0100000.00000000
Percentage of ReclassificationFromAociCurrentPeriodTax100.0100.0100.0100.00.0100.0100.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Reclassification
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-100000.0-100000.0-100000.0-200000.00-100000.0100000.0000
Percentage of ReclassificationFromAociCurrentPeriodTax100.0100.0100.0100.00.0100.0100.00.00.00.0

us-gaap:RepaymentsOfLongTermDebtAndCapitalSecurities

us-gaap:RepaymentsOfLongTermDebtAndCapitalSecurities


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value0.51.41.13.11000.30.20.30.3800.20.00.10.00.0
Percentage of RepaymentsOfLongTermDebtAndCapitalSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.00.0

us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures

us-gaap:CommonStock


Stock
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value400000.0100000.00200000.0000200000.00
Percentage of StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures100.0100.00.0100.00.00.00.0100.00.0

us-gaap:TreasuryStock


Stock
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-100000.0100000.00-100000.0000-200000.00
Percentage of StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures-25.0100.00.0-50.00.00.00.0-100.00.0

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value-5.54.65.75.01.83.73.34.1-0.33.2162.72.62.215
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value4.15.36.46.45.84.73.94.34.23.6
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures-74.5115.2112.3128.0322.2127.0118.2104.9-1400.0112.5

us-gaap:TreasuryStock


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-9.6-0.7-0.7-1.4-4.0-1.0-0.6-0.2-4.5-0.4
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures174.5-15.2-12.3-28.0-222.2-27.0-18.2-4.91500.0-12.5

us-gaap:StockholdersEquityOther

us-gaap:StockholdersEquityOther


Stockholders
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value00100000.0-900000.02000000.0500000.01800000.0900000.0
Percentage of StockholdersEquityOther0.00.0100.0100.0100.0100.0100.0100.0

us-gaap:StockholdersEquityOther us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value00100000.0-900000.02000000.0500000.01800000.0900000.0
Percentage of StockholdersEquityOther0.00.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStockRetiredCostMethodAmount us-gaap:StatementEquityComponents

us-gaap:TreasuryStockRetiredCostMethodAmount

us-gaap:AdditionalPaidInCapital


Treasury
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-30
Value148.10.07.0-3.80.0-16.4
Percentage of TreasuryStockRetiredCostMethodAmount100.0100.00.0100.0100.00.0100.0

us-gaap:TreasuryStock


Treasury
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-30
Value148.10.07.03.80.016
Percentage of TreasuryStockRetiredCostMethodAmount100.0100.00.0100.0-100.00.0-100.0

us-gaap:TreasuryStockSharesAcquired us-gaap:StatementEquityComponents

us-gaap:TreasuryStockSharesAcquired

us-gaap:TreasuryStock


Treasury
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value100000.0100000.000100000.00-100000.00-300000.0
Percentage of TreasuryStockSharesAcquired100.0100.00.00.0100.00.0100.00.0100.0

us-gaap:TreasuryStockSharesRetired us-gaap:StatementEquityComponents

us-gaap:TreasuryStockSharesRetired

us-gaap:CommonStock


Treasury
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-30
Value200000.0200000.00200000.0-100000.00-600000.0
Percentage of TreasuryStockSharesRetired100.0100.00.0100.0100.00.0100.0

us-gaap:TreasuryStock


Treasury
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-30
Value200000.0200000.00200000.0100000.00600000.0
Percentage of TreasuryStockSharesRetired100.0100.00.0100.0-100.00.0-100.0

us-gaap:TreasuryStockValueAcquiredCostMethod

us-gaap:TreasuryStockValueAcquiredCostMethod


Treasury
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value4.44.02.00.02.00.03.00.08.0
Percentage of TreasuryStockValueAcquiredCostMethod100.0100.0100.00.0100.00.0100.00.0100.0

us-gaap:TreasuryStockValueAcquiredCostMethod us-gaap:StatementEquityComponents

us-gaap:TreasuryStock


Treasury
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value4.44.02.00.02.00.03.00.08.0
Percentage of TreasuryStockValueAcquiredCostMethod100.0100.0100.00.0100.00.0100.00.0100.0

aca:BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedCurrentAssetsMineralReserves us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments

aca:BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedCurrentAssetsMineralReserves

aca:ACGMaterials, aca:ConstructionProducts


Business
Period End2020-12-31
Value137
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedCurrentAssetsMineralReserves100.0

aca:CherryIndustries, aca:ConstructionProductsGroup


Business
Period End2020-09-30
Value21
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedCurrentAssetsMineralReserves0.0

aca:StonePoint, aca:ConstructionProducts


Business
Period End2021-06-30
Value227
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedCurrentAssetsMineralReserves0.0

aca:DeferredTaxAssetsLiabilitiesNetBeforeValuationAllowanceandReserveforUncertainTaxProvisions

aca:DeferredTaxAssetsLiabilitiesNetBeforeValuationAllowanceandReserveforUncertainTaxProvisions


Deferred
Period End2020-12-312019-12-312018-12-312017-12-31
Value-91.04745-4.5
Percentage of DeferredTaxAssetsLiabilitiesNetBeforeValuationAllowanceandReserveforUncertainTaxProvisions100.0100.0100.0100.0

aca:DeferredTaxAssetsTaxDeferredExpenseReservesandAccrualsAccruedLiabilitiesandOther

aca:DeferredTaxAssetsTaxDeferredExpenseReservesandAccrualsAccruedLiabilitiesandOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-31
Value5100000.01000000.0-2700000.02700000.0
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesandAccrualsAccruedLiabilitiesandOther100.0100.0100.0100.0

aca:DeferredTaxAssetsTaxDeferredExpenseReservesandAccrualsWarrantyReservesandOtherReserves

aca:DeferredTaxAssetsTaxDeferredExpenseReservesandAccrualsWarrantyReservesandOtherReserves


Deferred
Period End2020-12-312019-12-312018-12-312017-12-31
Value1100000.01700000.02200000.01200000.0
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesandAccrualsWarrantyReservesandOtherReserves100.0100.0100.0100.0

aca:LettersOfCreditOutstandingExpiringInCurrentFiscalYear

aca:LettersOfCreditOutstandingExpiringInCurrentFiscalYear


Letters
Period End2020-12-31
Value26
Percentage of LettersOfCreditOutstandingExpiringInCurrentFiscalYear100.0

aca:LettersOfCreditOutstandingExpiringInCurrentFiscalYear us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:LetterOfCredit, us-gaap:LineOfCredit


Letters
Period End2021-06-302021-03-31
Value2325
Percentage of LettersOfCreditOutstandingExpiringInCurrentFiscalYear0.00.0

aca:LineofCreditFacilityAmountOutstandingExclusiveofLettersofCredit us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

aca:LineofCreditFacilityAmountOutstandingExclusiveofLettersofCredit

us-gaap:RevolvingCreditFacility, us-gaap:UnsecuredDebt, us-gaap:LineOfCredit


Lineof
Period End2021-03-26
Value150
Percentage of LineofCreditFacilityAmountOutstandingExclusiveofLettersofCredit100.0

aca:LineofCreditFacilityAmountOutstandingExclusiveofLettersofCredit us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Lineof
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value1001001001002001001001001001800.0
Percentage of LineofCreditFacilityAmountOutstandingExclusiveofLettersofCredit0.00.00.00.00.00.00.00.00.00.00.0

aca:MultiemployerPlanEstimatedFutureContributionsinNextFiscalYear

aca:MultiemployerPlanEstimatedFutureContributionsinNextFiscalYear


Multiemployer
Period End2020-12-31
Value1900000.0
Percentage of MultiemployerPlanEstimatedFutureContributionsinNextFiscalYear100.0

aca:Revenueremainingperformanceobligationexpectedtobedeliveredincurrentyear us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

aca:Revenueremainingperformanceobligationexpectedtobedeliveredincurrentyear

aca:InlandbargeDomain, aca:TransportationProducts


Revenueremainingperformanceobligationexpectedtobedeliveredincurrentyearus-gaap:
Period End2021-06-302021-03-31
Value66.091.0
Percentage of Revenueremainingperformanceobligationexpectedtobedeliveredincurrentyear100.0100.0

aca:InlandbargeDomain, aca:TransportationProductsGroup


Revenueremainingperformanceobligationexpectedtobedeliveredincurrentyearus-gaap:
Period End2020-09-302020-06-302019-09-302019-06-30
Value45.00.730.290.54
Percentage of Revenueremainingperformanceobligationexpectedtobedeliveredincurrentyear0.00.00.00.0

aca:Other, aca:EnergyEquipmentGroup


Revenueremainingperformanceobligationexpectedtobedeliveredincurrentyearus-gaap:
Period End2020-09-302020-06-302019-09-302019-06-302019-03-312018-09-30
Value77.01.00.530.80.950.37
Percentage of Revenueremainingperformanceobligationexpectedtobedeliveredincurrentyear0.00.00.00.00.00.0

aca:UtilityWindAndRelatedStructuresDomain, aca:EngineeredStructures


Revenueremainingperformanceobligationexpectedtobedeliveredincurrentyearus-gaap:
Period End2021-06-302021-03-31
Value93.0100.0
Percentage of Revenueremainingperformanceobligationexpectedtobedeliveredincurrentyear140.9109.9

aca:WindtowersandutilitystructuresDomain, aca:EnergyEquipmentGroup


Revenueremainingperformanceobligationexpectedtobedeliveredincurrentyearus-gaap:
Period End2020-09-302020-06-302019-09-302019-06-302019-03-312018-09-30
Value32.00.740.30.520.580.23
Percentage of Revenueremainingperformanceobligationexpectedtobedeliveredincurrentyear0.00.00.00.00.00.0

aca:Revenueremainingperformanceobligationexpectedtobedeliveredinnextyear us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

aca:Revenueremainingperformanceobligationexpectedtobedeliveredinnextyear

aca:InlandbargeDomain, aca:TransportationProducts


Revenueremainingperformanceobligationexpectedtobedeliveredinnextyearus-gaap:
Period End2020-12-31
Value100.0
Percentage of Revenueremainingperformanceobligationexpectedtobedeliveredinnextyear100.0

aca:StorageTanks, aca:EngineeredStructures


Revenueremainingperformanceobligationexpectedtobedeliveredinnextyearus-gaap:
Period End2020-12-31
Value94.0
Percentage of Revenueremainingperformanceobligationexpectedtobedeliveredinnextyear94.0

aca:UtilityWindAndRelatedStructuresDomain, aca:EngineeredStructures


Revenueremainingperformanceobligationexpectedtobedeliveredinnextyearus-gaap:
Period End2020-12-31
Value100.0
Percentage of Revenueremainingperformanceobligationexpectedtobedeliveredinnextyear100.0

dei:EntityCommonStockSharesOutstanding

dei:EntityCommonStockSharesOutstanding


Entity
Period End2021-07-152021-04-152021-01-152020-10-15
Value48484848
Percentage of EntityCommonStockSharesOutstanding100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent


Allowance
Period End2020-12-312019-12-312018-12-312017-12-31
Value3400000.02300000.08700000.08600000.0
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent100.0100.0100.0100.0

us-gaap:AssetsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:AssetsFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value45502711987135155605060300.0
Percentage of AssetsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:AssetsFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value45502711987135155605060300.0
Percentage of AssetsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:BusinessCombinationContingentConsiderationLiability us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:BusinessCombinationContingentConsiderationLiability

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring


Business
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value6700000.09200000.09800000.09800000.04200000.04200000.06400000.06600000.05200000.0
Percentage of BusinessCombinationContingentConsiderationLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationContingentConsiderationLiability us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Business
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value6700000.09200000.09800000.09800000.04200000.04200000.06400000.06600000.05200000.0
Percentage of BusinessCombinationContingentConsiderationLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCapitalLeaseObligation us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCapitalLeaseObligation

aca:ACGMaterials, aca:ConstructionProducts


Business
Period End2020-12-31
Value8300000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCapitalLeaseObligation100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents

aca:StonePoint, aca:ConstructionProducts


Business
Period End2021-06-30
Value1000000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets

aca:ACGMaterials, aca:ConstructionProducts


Business
Period End2020-12-31
Value6.3
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets100.0

aca:CherryIndustries, aca:ConstructionProductsGroup


Business
Period End2020-09-30
Value4.3
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets0.0

aca:StonePoint, aca:ConstructionProducts


Business
Period End2021-06-30
Value10
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets0.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables

aca:ACGMaterials, aca:ConstructionProducts


Business
Period End2020-12-31
Value23
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables100.0

aca:CherryIndustries, aca:ConstructionProductsGroup


Business
Period End2020-09-30
Value30
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables0.0

aca:StonePoint, aca:ConstructionProducts


Business
Period End2021-06-30
Value18
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables0.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable

aca:ACGMaterials, aca:ConstructionProducts


Business
Period End2020-12-31
Value10
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable100.0

aca:CherryIndustries, aca:ConstructionProductsGroup


Business
Period End2020-09-30
Value7.5
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable0.0

aca:StonePoint, aca:ConstructionProducts


Business
Period End2021-06-30
Value7.4
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable0.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther

aca:ACGMaterials, aca:ConstructionProducts


Business
Period End2020-12-31
Value14
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther100.0

aca:CherryIndustries, aca:ConstructionProductsGroup


Business
Period End2020-09-30
Value5.4
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther0.0

aca:StonePoint, aca:ConstructionProducts


Business
Period End2021-06-30
Value9.1
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther0.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities

aca:ACGMaterials, aca:ConstructionProducts


Business
Period End2020-12-31
Value21
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles us-gaap:BusinessAcquisition, us-gaap:FiniteLivedIntangibleAssetsByMajorClass, us-gaap:StatementBusinessSegments

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles

aca:CherryIndustries, us-gaap:ConstructionPermits, aca:ConstructionProductsGroup


Business
Period End2020-09-302020-06-302020-03-31
Value252424
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles100.0100.0100.0

aca:CherryIndustries, us-gaap:CustomerRelatedIntangibleAssets, aca:ConstructionProductsGroup


Business
Period End2020-09-302020-06-302020-03-31
Value606060
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles235.7241.8241.8

aca:RecycledAggregates, us-gaap:ConstructionPermits, aca:ConstructionProducts


Business
Period End2021-03-312020-12-31
Value5148
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles0.00.0

aca:StonePoint, us-gaap:CustomerRelationships, aca:ConstructionProducts


Business
Period End2021-06-30
Value7.2
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles0.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory

aca:ACGMaterials, aca:ConstructionProducts


Business
Period End2020-12-31
Value12
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory100.0

aca:CherryIndustries, aca:ConstructionProductsGroup


Business
Period End2020-09-30
Value11
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory0.0

aca:StonePoint, aca:ConstructionProducts


Business
Period End2021-06-30
Value21
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory0.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities

aca:CherryIndustries, aca:ConstructionProductsGroup


Business
Period End2020-09-30
Value2400000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities100.0

aca:StonePoint, aca:ConstructionProducts


Business
Period End2021-06-30
Value7000000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities0.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment

aca:ACGMaterials, aca:ConstructionProducts


Business
Period End2020-12-31
Value77
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment100.0

aca:CherryIndustries, aca:ConstructionProductsGroup


Business
Period End2020-09-30
Value58
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment0.0

aca:StonePoint, aca:ConstructionProducts


Business
Period End2021-06-30
Value71
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment0.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet

aca:ACGMaterials, aca:ConstructionProducts


Business
Period End2020-12-31
Value309
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet100.0

aca:CherryIndustries, aca:ConstructionProductsGroup


Business
Period End2020-09-30
Value296
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet0.0

aca:StonePoint, aca:ConstructionProducts


Business
Period End2021-06-30
Value374
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet0.0

us-gaap:CapitalLeaseObligations

us-gaap:CapitalLeaseObligations


Capital
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value128.05.64.96.97.27.37.57.85.15.50.5
Percentage of CapitalLeaseObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:CashAndCashEquivalentsFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value45502711987135155605060300.0
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:CashAndCashEquivalentsFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value45502711987135155605060300.0
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:ContractWithCustomerAssetNet

us-gaap:ContractWithCustomerAssetNet


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value3739824023305044542044
Percentage of ContractWithCustomerAssetNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:DebtInstrumentCarryingAmount

us-gaap:UnsecuredDebt, us-gaap:SeniorNotes, us-gaap:SubsequentEvent


Debt
Period End2021-04-06
Value400
Percentage of DebtInstrumentCarryingAmount100.0

us-gaap:DebtInstrumentCarryingAmount us-gaap:LongtermDebtType

aca:TermLoan


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312020-01-022019-12-31
Value1481481491501501501500.0
Percentage of DebtInstrumentCarryingAmount0.00.00.00.00.00.00.00.0

us-gaap:DeferredCompensationLiabilityCurrentAndNoncurrent us-gaap:BalanceSheetLocation

us-gaap:DeferredCompensationLiabilityCurrentAndNoncurrent

us-gaap:OtherLiabilities


Deferred
Period End2020-12-31
Value3900000.0
Percentage of DeferredCompensationLiabilityCurrentAndNoncurrent100.0

us-gaap:DeferredCompensationPlanAssets us-gaap:BalanceSheetLocation

us-gaap:DeferredCompensationPlanAssets

us-gaap:OtherAssets


Deferred
Period End2020-12-31
Value4900000.0
Percentage of DeferredCompensationPlanAssets100.0

us-gaap:DeferredIncomeTaxAssetsNet

us-gaap:DeferredIncomeTaxAssetsNet


Deferred
Period End2020-12-312019-12-31
Value1514
Percentage of DeferredIncomeTaxAssetsNet100.0100.0

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredIncomeTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-31
Value16010910332
Percentage of DeferredIncomeTaxLiabilities100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsDeferredIncome

us-gaap:DeferredTaxAssetsDeferredIncome


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value15151515151514
Percentage of DeferredTaxAssetsDeferredIncome100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsGross


Deferred
Period End2020-12-312019-12-312018-12-312017-12-31
Value69615737
Percentage of DeferredTaxAssetsGross100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsInventory

us-gaap:DeferredTaxAssetsInventory


Deferred
Period End2020-12-312019-12-312018-12-312017-12-31
Value26221010.0
Percentage of DeferredTaxAssetsInventory100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic


Deferred
Period End2020-12-31
Value20
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsDomestic100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsForeign

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsForeign


Deferred
Period End2020-12-31
Value52
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsForeign100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal


Deferred
Period End2020-12-31
Value900000.0
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal100.0

us-gaap:DeferredTaxAssetsTaxCreditCarryforwards

us-gaap:DeferredTaxAssetsTaxCreditCarryforwards


Deferred
Period End2020-12-312019-12-312018-12-312017-12-31
Value1614316.8
Percentage of DeferredTaxAssetsTaxCreditCarryforwards100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits


Deferred
Period End2020-12-312019-12-312018-12-312017-12-31
Value20211616
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment


Deferred
Period End2020-12-312019-12-312018-12-312017-12-31
Value16010910332
Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesTaxDeferredIncome

us-gaap:DeferredTaxLiabilitiesTaxDeferredIncome


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value92114112106999866
Percentage of DeferredTaxLiabilitiesTaxDeferredIncome100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxesBusinessCombinationValuationAllowanceAvailableToReduceGoodwill us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments

us-gaap:DeferredTaxesBusinessCombinationValuationAllowanceAvailableToReduceGoodwill

aca:CherryIndustries, aca:ConstructionProductsGroup


Deferred
Period End2020-09-30
Value28
Percentage of DeferredTaxesBusinessCombinationValuationAllowanceAvailableToReduceGoodwill100.0

aca:StonePoint, aca:ConstructionProducts


Deferred
Period End2021-06-30
Value-28.4
Percentage of DeferredTaxesBusinessCombinationValuationAllowanceAvailableToReduceGoodwill0.0

us-gaap:DefinedBenefitPlanBenefitObligation

us-gaap:DefinedBenefitPlanBenefitObligation


Defined
Period End2020-12-31
Value3500000.0
Percentage of DefinedBenefitPlanBenefitObligation100.0

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets


Defined
Period End2020-12-31
Value3600000.0
Percentage of DefinedBenefitPlanFairValueOfPlanAssets100.0

us-gaap:DefinedBenefitPlanFundedStatusOfPlan us-gaap:BalanceSheetLocation

us-gaap:DefinedBenefitPlanFundedStatusOfPlan

us-gaap:OtherAssets


Defined
Period End2020-12-31
Value100000.0
Percentage of DefinedBenefitPlanFundedStatusOfPlan100.0

us-gaap:DerivativeLiabilities us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:DerivativeLiabilities

us-gaap:InterestRateSwap, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value5500000.06300000.07300000.07900000.08600000.08400000.04300000.05200000.04600000.02400000.01200000.00
Percentage of DerivativeLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:DerivativeLiabilities us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency

us-gaap:InterestRateSwap, us-gaap:FairValueMeasurementsRecurring


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value5500000.06300000.07300000.07900000.08600000.08400000.04300000.05200000.04600000.02400000.01200000.00
Percentage of DerivativeLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:DerivativeLiabilities us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation

us-gaap:InterestRateSwap, us-gaap:DesignatedAsHedgingInstrument


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value5500000.06300000.07300000.07900000.04300000.0
Percentage of DerivativeLiabilities100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions us-gaap:AwardType

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions

aca:RestrictedShareAwards


Employee
Period End2020-12-31
Value27
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization


Finite
Period End2021-06-302021-03-312020-12-312019-12-31
Value35312627
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive


Finite
Period End2020-12-31
Value107
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths


Finite
Period End2020-12-31
Value16
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive


Finite
Period End2020-12-31
Value13
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFive100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour


Finite
Period End2020-12-31
Value14
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFour100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree


Finite
Period End2020-12-31
Value14
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearThree100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo


Finite
Period End2020-12-31
Value14
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo100.0

us-gaap:FiniteLivedIntangibleAssetsGross

us-gaap:FiniteLivedIntangibleAssetsGross


Finite
Period End2021-06-302021-03-312020-12-312019-12-31
Value22820820544
Percentage of FiniteLivedIntangibleAssetsGross100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsGross us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:ConstructionPermits


Finite
Period End2021-06-302021-03-312020-12-31
Value877773
Percentage of FiniteLivedIntangibleAssetsGross38.336.935.8

us-gaap:CustomerRelationships


Finite
Period End2021-06-302021-03-312020-12-312019-12-31
Value13312312330
Percentage of FiniteLivedIntangibleAssetsGross58.259.360.268.8

us-gaap:OtherIntangibleAssets


Finite
Period End2021-06-302021-03-312020-12-312019-12-31
Value8.08.08.113
Percentage of FiniteLivedIntangibleAssetsGross3.53.83.931.2

us-gaap:InventoryFinishedGoodsNetOfReserves

us-gaap:InventoryFinishedGoodsNetOfReserves


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value12710711711611811710610799979074108
Percentage of InventoryFinishedGoodsNetOfReserves100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InventoryRawMaterialsAndSuppliesNetOfReserves

us-gaap:InventoryRawMaterialsAndSuppliesNetOfReserves


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value16013611413115213913414814513112812691
Percentage of InventoryRawMaterialsAndSuppliesNetOfReserves100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InventoryWorkInProcessNetOfReserves

us-gaap:InventoryWorkInProcessNetOfReserves


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value51454442424641494542333347
Percentage of InventoryWorkInProcessNetOfReserves100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value4800000.03700000.05800000.05600000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear


Lessee
Period End2021-06-302021-03-312020-09-30
Value3100000.03800000.01700000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear100.0100.0100.0

us-gaap:LettersOfCreditOutstandingAmount us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:LettersOfCreditOutstandingAmount

us-gaap:LetterOfCredit, us-gaap:LineOfCredit


Letters
Period End2021-06-302021-03-312020-12-312020-09-30
Value28282826
Percentage of LettersOfCreditOutstandingAmount100.0100.0100.0100.0

us-gaap:LiabilitiesFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:LiabilitiesFairValueDisclosure

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value5.56.37.37.98.68.44.35.24.62.41.20.0
Percentage of LiabilitiesFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value6.79.29.89.84.24.26.46.65.20.00.00.0
Percentage of LiabilitiesFairValueDisclosure121.8146.0134.2124.148.850.0148.8126.9113.00.00.00.0

us-gaap:LiabilitiesFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value12151717121210119.82.41.20.0
Percentage of LiabilitiesFairValueDisclosure221.8246.0234.2224.1148.8150.0248.8226.9213.0100.0100.00.0

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity

us-gaap:RevolvingCreditFacility, us-gaap:UnsecuredDebt, us-gaap:LineOfCredit


Line
Period End2021-03-26
Value150
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity100.0

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Line
Period End2020-09-302020-06-302020-03-312020-01-022018-11-01
Value500500500500400
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity0.00.00.00.00.0

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity

us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Line
Period End2021-06-302021-03-312020-12-312020-09-30
Value371371371373
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity100.0100.0100.0100.0

us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent

us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value8800000.05800000.06300000.04200000.04500000.04600000.03700000.01100000.01100000.01800000.01800000.0100000.0100000.0
Percentage of LongTermDebtAndCapitalLeaseObligationsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities

us-gaap:LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value660256254254256357107
Percentage of LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalAfterYearFive us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalAfterYearFive

us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Long
Period End2020-09-302020-06-302020-03-312018-12-31
Value1001002000.0
Percentage of LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalAfterYearFive100.0100.0100.00.0

us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalAfterYearFive us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:UnsecuredDebt, us-gaap:SeniorNotes


Long
Period End2021-06-30
Value400
Percentage of LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalAfterYearFive0.0

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

us-gaap:UnsecuredDebt, us-gaap:SeniorNotes, us-gaap:SubsequentEvent


Long
Period End2021-04-06
Value400
Percentage of LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalAfterYearFive0.0

us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalAfterYearFive us-gaap:LongtermDebtType

aca:TermLoan


Long
Period End2020-09-30
Value120
Percentage of LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalAfterYearFive120.0

us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFive us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Long
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312018-12-31
Value1001001000.00.0180
Percentage of LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFive100.0100.0100.00.00.0100.0

us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFive us-gaap:LongtermDebtType

aca:TermLoan


Long
Period End2021-06-302021-03-312020-12-312020-09-30
Value1201201208.4
Percentage of LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFive120.0120.0120.00.0

us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFour us-gaap:LongtermDebtType

us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFour

aca:TermLoan


Long
Period End2021-06-302021-03-312020-12-312020-09-30
Value8400000.08400000.08400000.08500000.0
Percentage of LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFour100.0100.0100.0100.0

us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearThree us-gaap:LongtermDebtType

us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearThree

aca:TermLoan


Long
Period End2021-06-302021-03-312020-12-312020-09-30
Value8500000.08500000.08500000.07500000.0
Percentage of LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearThree100.0100.0100.0100.0

us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearTwo us-gaap:LongtermDebtType

us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearTwo

aca:TermLoan


Long
Period End2021-06-302021-03-312020-12-312020-09-30
Value7500000.07500000.07500000.04700000.0
Percentage of LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearTwo100.0100.0100.0100.0

us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear us-gaap:LongtermDebtType

us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear

aca:TermLoan


Long
Period End2021-06-302021-03-312020-09-30
Value3700000.03700000.0900000.0
Percentage of LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear100.0100.0100.0

us-gaap:LongTermDebtAndCapitalLeaseObligationsRepaymentsOfPrincipalInNextTwelveMonths us-gaap:LongtermDebtType

us-gaap:LongTermDebtAndCapitalLeaseObligationsRepaymentsOfPrincipalInNextTwelveMonths

aca:TermLoan


Long
Period End2020-12-31
Value4700000.0
Percentage of LongTermDebtAndCapitalLeaseObligationsRepaymentsOfPrincipalInNextTwelveMonths100.0

us-gaap:LongTermDebtFairValue us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:LongTermDebtFairValue

us-gaap:UnsecuredDebt, us-gaap:SeniorNotes


Long
Period End2021-06-30
Value407
Percentage of LongTermDebtFairValue100.0

us-gaap:LongTermLineOfCredit us-gaap:CreditFacility, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

us-gaap:LongTermLineOfCredit

us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit, us-gaap:SubsequentEvent


Long
Period End2021-08-04
Value100
Percentage of LongTermLineOfCredit100.0

us-gaap:LossContingencyAccrualAtCarryingValue us-gaap:BalanceSheetLocation

us-gaap:LossContingencyAccrualAtCarryingValue

us-gaap:AccruedLiabilities


Loss
Period 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
Value1400000.01100000.01200000.02400000.02500000.03200000.03600000.04800000.04800000.05000000.05100000.05200000.0
Percentage of LossContingencyAccrualAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LossContingencyAccrualAtCarryingValue us-gaap:LossContingenciesByNatureOfContingency

aca:EnvironmentalAndWorkplaceMatters


Loss
Period 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
Value1100000.01100000.01200000.01200000.01300000.01400000.01400000.0900000.01000000.01100000.01100000.01100000.0
Percentage of LossContingencyAccrualAtCarryingValue78.6100.0100.050.052.043.838.918.820.822.021.621.2

us-gaap:LossContingencyEstimateOfPossibleLoss us-gaap:Range

us-gaap:LossContingencyEstimateOfPossibleLoss

srt:Maximum


Loss
Period 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
Value0.70.40.41.61.63.44.61210111111
Percentage of LossContingencyEstimateOfPossibleLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:Minimum


Loss
Period 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
Value0.60.30.30.80.80.81.11.11.21.31.31.3
Percentage of LossContingencyEstimateOfPossibleLoss85.775.075.050.050.023.523.98.911.111.511.511.3

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent


Operating
Period End2020-12-31
Value4.8
Percentage of OperatingLeaseWeightedAverageDiscountRatePercent100.0

us-gaap:RevenueRemainingPerformanceObligation us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

us-gaap:RevenueRemainingPerformanceObligation

aca:InlandbargeDomain, aca:TransportationProducts


Revenue
Period End2021-06-302021-03-312020-12-31
Value139133175
Percentage of RevenueRemainingPerformanceObligation100.0100.0100.0

aca:InlandbargeDomain, aca:TransportationProductsGroup


Revenue
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value177258348346363349
Percentage of RevenueRemainingPerformanceObligation0.00.00.00.00.00.0

aca:Other, aca:EnergyEquipmentGroup


Revenue
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value131529364445535583
Percentage of RevenueRemainingPerformanceObligation0.00.00.00.00.00.00.00.00.0

aca:StorageTanks, aca:EngineeredStructures


Revenue
Period End2021-06-302021-03-312020-12-31
Value303015
Percentage of RevenueRemainingPerformanceObligation21.723.08.9

aca:UtilityWindAndRelatedStructuresDomain, aca:EngineeredStructures


Revenue
Period End2021-06-302021-03-312020-12-31
Value348379334
Percentage of RevenueRemainingPerformanceObligation250.0284.9190.3

aca:WindtowersandutilitystructuresDomain, aca:EnergyEquipmentGroup


Revenue
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value429352475596563517549633700
Percentage of RevenueRemainingPerformanceObligation0.00.00.00.00.00.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

aca:RestrictedShareAwards


Share
Period End2020-12-312019-12-312018-12-312018-10-31
Value26.5324.221.0420.34
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant


Share
Period End2020-12-31
Value1900000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant100.0

us-gaap:StandardProductWarrantyAccrualCurrent

us-gaap:StandardProductWarrantyAccrualCurrent


Standard
Period End2020-12-312019-12-312018-12-312017-12-31
Value3100000.02600000.02900000.02600000.0
Percentage of StandardProductWarrantyAccrualCurrent100.0100.0100.0100.0

us-gaap:StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1

us-gaap:StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1


Stock
Period End2021-06-302021-03-312020-09-30
Value455032
Percentage of StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1100.0100.0100.0

us-gaap:TreasuryStockShares

us-gaap:TreasuryStockShares


Treasury
Period End2020-12-312019-12-312018-12-312017-12-31
Value00100000.00
Percentage of TreasuryStockShares0.00.0100.00.0

us-gaap:UnamortizedDebtIssuanceExpense

us-gaap:UnamortizedDebtIssuanceExpense


Unamortized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value6600000.0200000.0200000.0300000.0300000.0300000.00
Percentage of UnamortizedDebtIssuanceExpense100.0100.0100.0100.0100.0100.00.0

us-gaap:UnamortizedDebtIssuanceExpense us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Unamortized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value1500000.01600000.01600000.01800000.01900000.01900000.0
Percentage of UnamortizedDebtIssuanceExpense22.7800.0800.0600.0633.3633.3

us-gaap:UndistributedEarningsOfForeignSubsidiaries

us-gaap:UndistributedEarningsOfForeignSubsidiaries


Undistributed
Period End2020-12-31
Value109
Percentage of UndistributedEarningsOfForeignSubsidiaries100.0

us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount

us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount


Unrecorded
Period End2020-12-312019-12-312018-12-31
Value179168188
Percentage of UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount100.0100.0100.0

us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount us-gaap:StatementBusinessSegments, us-gaap:UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchased

aca:EngineeredStructuresAndTransportationProductsDomain, us-gaap:Inventories


Unrecorded
Period End2020-12-31
Value132
Percentage of UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount73.8

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:OperatingIncomeLoss
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
Operating Income Lossus-gaap: Consolidation Items, us-gaap: Statement Business Segments
us-gaap:Revenues
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
Revenuesus-gaap: Consolidation Items, us-gaap: Statement Business Segments
us-gaap:Revenues
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
(None, 'aca:ConstructionProductsGroup')
Revenuesus-gaap: Product Or Service, us-gaap: Statement Business Segments
us-gaap:Revenues
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
(None, 'aca:EngineeredStructures')
Revenuesus-gaap: Product Or Service, us-gaap: Statement Business Segments
us-gaap:Revenues
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
(None, 'aca:EnergyEquipmentGroup')
Revenuesus-gaap: Product Or Service, us-gaap: Statement Business Segments
us-gaap:Revenues
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
(None, 'aca:ConstructionProducts')
Revenuesus-gaap: Product Or Service, us-gaap: Statement Business Segments
us-gaap:Assets
us-gaap:ConsolidationItems
(None,)
Assetsus-gaap: Consolidation Items
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
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents
(None,)
Stockholders Equity Including Portion Attributable To Noncontrolling Interestus-gaap: Statement Equity Components