AYI


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

Table of contents


us-gaap:StatementEquityComponents
us-gaap:SharesIssued
us-gaap:StatementClassOfStock
us-gaap:CommonStockSharesIssued
us-gaap:StatementEquityComponents
us-gaap:CommonStockSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:CostOfGoodsAndServicesSold

us-gaap:GrossProfit

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxesPaid

us-gaap:InterestExpense

us-gaap:InterestPaidNet

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:NonoperatingIncomeExpense

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

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherNonoperatingIncomeExpense

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

us-gaap:Revenues

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:Assets

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
us-gaap:CumulativeEffectPeriodOfAdoption
us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:AssetsCurrent

us-gaap:CashAndCashEquivalentsAtCarryingValue
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:AccountsReceivableNetCurrent

us-gaap:InventoryNet

us-gaap:InventoryFinishedGoods

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:NoncurrentAssets
us-gaap:StatementGeographical

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AmortizationOfIntangibleAssets

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:Goodwill
us-gaap:BusinessAcquisition
us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass
us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent

us-gaap:AccountsPayableCurrent

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:LiabilitiesCurrent

us-gaap:LongTermDebtCurrent

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:LongTermDebt
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:LongTermDebtNoncurrent
us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity
us-gaap:CumulativeEffectPeriodOfAdoption
us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:TreasuryStockValue

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:DepreciationDepletionAndAmortization
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt
us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:Dividends
us-gaap:StatementEquityComponents

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
us-gaap:AwardType, us-gaap:PlanName
us-gaap:AwardType, us-gaap:PlanName, us-gaap:Vesting
us-gaap:AwardType, us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:DeferredTaxLiabilities

us-gaap:UnrecognizedTaxBenefits

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:AssetImpairmentCharges

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

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

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:GainLossOnSaleOfPropertyPlantEquipment

us-gaap:GoodwillForeignCurrencyTranslationGainLoss

us-gaap:GoodwillPurchaseAccountingAdjustments

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:InterestRevenueExpenseNet

us-gaap:InvestmentIncomeInterest

us-gaap:LeaseCost
us-gaap:StatementEquityComponents
us-gaap:OciBeforeReclassificationsNetOfTaxAttributableToParent

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsTax

us-gaap:OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossTaxPortionAttributableToParent1
us-gaap:StatementEquityComponents

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsForRestructuring
us-gaap:RestructuringPlan

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired

us-gaap:ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent
us-gaap:StatementEquityComponents
us-gaap:ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent
us-gaap:StatementEquityComponents
us-gaap:ReclassificationFromAociCurrentPeriodTax

us-gaap:RestructuringAndRelatedCostIncurredCost
us-gaap:RestructuringPlan

us-gaap:RestructuringCharges
us-gaap:RestructuringCostAndReserve
us-gaap:AwardType, us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod
us-gaap:AwardType, us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice

us-gaap:ShortTermLeaseCost

us-gaap:StandardProductWarrantyAccrualPayments

us-gaap:StandardProductWarrantyAccrualWarrantiesIssued
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures

us-gaap:StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures
us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:StockRepurchasedDuringPeriodShares

us-gaap:StockRepurchasedDuringPeriodValue
us-gaap:StatementEquityComponents
ayi:RepurchasePlanTypeAndName, us-gaap:SubsequentEventType
us-gaap:TreasuryStockSharesAcquired

us-gaap:VariableLeaseCost

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
ayi:DebtIssuancePricePercentageOfFaceValue

ayi:DeferredCompensationAndPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
us-gaap:AwardType, us-gaap:PlanName
ayi:DeferredCompensationArrangementSharesOutstanding

ayi:DeferredTaxAssetOperatingLeaseRightofuseAsset

ayi:DeferredTaxAssetsOperatingLeaseLiabilities

ayi:OtherLongTermAssets

ayi:OtherLongTermLiabilities

ayi:ResearchandDevelopmentTaxCreditReceivable
ayi:RepurchasePlanTypeAndName, us-gaap:SubsequentEventType
ayi:StockRepurchaseProgramNumberofAdditionalSharesAuthorizedtobeRepurchased

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent
us-gaap:DisposalGroupClassification
us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperation
us-gaap:RetirementPlanType
us-gaap:CommonStockValueOutstanding

us-gaap:ContractWithCustomerLiabilityNoncurrent
us-gaap:FairValueByLiabilityClass
us-gaap:MajorCustomers
us-gaap:ContractWithCustomerRefundLiability

us-gaap:ContractWithCustomerRightToRecoverProduct
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentInterestRateEffectivePercentage

us-gaap:DeferredCosts
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DeferredFinanceCostsGross

us-gaap:DeferredIncomeTaxAssetsNet

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssets

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesUndistributedForeignEarnings
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheet
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanBenefitObligation
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedAmortizationOfGainLossNextFiscalYear
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedAmortizationOfPriorServiceCostCreditNextFiscalYear
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanFundedStatusOfPlan
us-gaap:RetirementPlanFundingStatus, us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsAccumulatedBenefitObligation
us-gaap:RetirementPlanFundingStatus, us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsPlanAssets
us-gaap:RetirementPlanFundingStatus, us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsProjectedBenefitObligation
us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage
us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DisposalGroupClassification, us-gaap:SubsequentEventType
us-gaap:DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment

us-gaap:EmployeeRelatedLiabilitiesCurrent
us-gaap:AwardType, us-gaap:PlanName
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:InventoryGross

us-gaap:InventoryValuationReserves

us-gaap:InventoryWorkInProcessAndRawMaterials

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVenturesFairValueDisclosure
us-gaap:FairValueByMeasurementBasis

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
us-gaap:DebtInstrument
us-gaap:LettersOfCreditOutstandingAmount
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:LongtermDebtType

us-gaap:LiabilityForUncertainTaxPositionsNoncurrent
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:LineOfCredit
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:LineOfCreditFacilityCurrentBorrowingCapacity
us-gaap:DebtInstrument, us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType
us-gaap:LongTermDebtFairValue
us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo

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

us-gaap:OtherAssetsMiscellaneousNoncurrent
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities

us-gaap:RecordedUnconditionalPurchaseObligationDueInSecondYear

us-gaap:RecordedUnconditionalPurchaseObligationDueWithinOneYear

us-gaap:RestructuringReserve
ayi:RestructuringActivityByActionsYear
us-gaap:RestructuringPlan

us-gaap:SelfInsuranceReserve

us-gaap:SelfInsuranceReserveNoncurrent
us-gaap:AwardType, us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
us-gaap:AwardType, us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
us-gaap:AwardType, us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
us-gaap:PlanName
us-gaap:AwardType, us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
us-gaap:AwardType, us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
us-gaap:AwardType, us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
us-gaap:AwardType, us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue
us-gaap:PlanName, us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRange
us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions
us-gaap:PlanName, us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRange
us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
us-gaap:AwardType, us-gaap:PlanName
us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
us-gaap:PlanName, us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRange
us-gaap:SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1
us-gaap:PlanName, us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRange
us-gaap:SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1

us-gaap:StandardProductWarrantyAccrual
ayi:RepurchasePlanTypeAndName
us-gaap:StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased

us-gaap:TreasuryStockShares

us-gaap:UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued

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

Plots across concepts


IncomeStatement
Other Comprehensive Income Loss Net Of Tax
Expenses
Other Nonoperating Income Expense
Balance Sheet
Operating Lease Liability Noncurrent
Assets
Operating Lease Right Of Use Asset
Current Assets
Prepaid Expense And Other Assets Current
NonCurrent Assets
Deferred Income Tax Assets Net
PropertyPlantAndEquipmentNet
Property Plant And Equipment Net
Liabilities
Liabilities Current
Current Liabilities
Long Term Debt Current
Noncurrent Liabilities
Operating Lease Liability Noncurrent
Stockholders Equity
Accumulated Other Comprehensive Income Loss Net Of Tax
CashFlow
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInOperatingActivities
Increase Decrease In Prepaid Deferred Expense And Other Assets
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInFinancingActivities
Net Cash Provided By Used In Financing Activities
Shares
Weighted Average Number Of Shares Outstanding Basic
DividendsAndRepurchase
Payments For Repurchase Of Common Stock
NonoperatingIncomeExpense
Nonoperating Income Expense
InventoryNet
Inventory Finished Goods
AccountsReceivable
Allowance For Doubtful Accounts Receivable Current

Tables

  2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
 us-gaap:SharesIssued us-gaap:StatementEquityComponents us-gaap:CommonStock▁▁▂▅▅▅▅▅▆▆▆▆▆▇██35.735.736.438.939.539.539.539.539.739.739.940.040.040.841.941.9NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CommonStockSharesIssued us-gaap:StatementClassOfStock us-gaap:CommonStockNANANA53.9NANANA53.8NANANA53.7NANANA53.5NANANA53.4NANANA53.0NANANA52.6NANANA52.2NANANA51.5NANANA51.0NANANA50.4NANANA
 us-gaap:CommonStockSharesOutstanding us-gaap:StatementEquityComponents us-gaap:CommonStockNANANA38.9NANANA39.5NANANA40.0NANANA41.8NANANA43.7NANANA43.3NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding ▁▁█36.236.237.8NA39.739.739.6NA39.839.640.1NA40.541.542.1NA43.344.044.0NA43.843.843.6NA43.543.443.3NA43.143.142.9NA42.642.542.3NA42.041.941.7NA43.143.042.8NA43.543.343.1
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic ▁▂█35.736.037.6NA39.539.539.5NA39.739.540.0NA40.441.441.9NA43.143.843.8NA43.543.543.3NA43.243.143.0NA42.842.842.6NA42.242.141.8NA41.641.441.2NA42.542.342.0NA42.742.542.3
 us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities us-gaap:EmployeeStockOption▁▇█0.10.9546771.127837NA0.8527190.4435950.278972NA0.2837310.3146730.212048NA0.239230.1894280.163812NA0.1490.1288670.081487NA0.0474060.0711150.028133NA0.0521430.078220.076617NA0.0478470.071780.029974NA0.0727360.10911NANANANANANANANANANANANANA
 us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities us-gaap:RestrictedStockNA0.0718120.185419NA0.2395280.102210.118036NA0.10780.1896830.197014NA0.2407830.1981860.211576NA0.1762490.1037520.025994NA0.00.0029650.045555NA0.00.00.037429NA0.0139880.00.033807NA0.00.0NANANANANANANANANANANANANA
us-gaap:EarningsPerShareBasic NANANA1.881.531.451.442.432.231.681.992.711.812.341.712.161.911.541.871.91.71.51.581.391.491.071.181.271.010.761.031.040.740.580.610.780.80.460.710.80.630.460.570.630.490.180.54
us-gaap:EarningsPerShareDiluted NANANA1.871.521.441.442.422.221.671.982.71.82.331.72.151.91.531.861.891.691.491.571.371.481.071.171.261.010.751.031.030.730.570.610.780.790.460.70.790.620.450.560.620.480.170.53
us-gaap:IncomeLossFromContinuingOperationsPerBasicShare █▂▁2.4e-061.75e-061.5800000000000001e-06NA1.53e-061.4499999999999999e-061.44e-06NA2.23e-061.68e-061.99e-06NA1.81e-062.34e-061.71e-06NA1.91e-061.54e-061.87e-061.8899999999999997e-061.7e-061.5e-061.5800000000000001e-061.3899999999999996e-061.49e-061.0700000000000001e-061.18e-061.2600000000000002e-061.01e-067.6e-071.03e-061.0400000000000002e-067.4e-075.8e-076.1e-077.8e-078.000000000000001e-074.6000000000000004e-077.1e-078.000000000000001e-076.3e-074.6000000000000004e-075.699999999999999e-076.3e-074.9e-071.7000000000000001e-075.4e-07
us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare █▂▁2.37e-061.74e-061.57e-06NA1.52e-061.44e-061.44e-06NA2.2200000000000003e-061.6699999999999999e-061.98e-06NA1.8000000000000001e-062.33e-061.7e-06NA1.8999999999999998e-061.53e-061.8600000000000002e-061.8799999999999998e-061.69e-061.49e-061.57e-061.3699999999999996e-061.48e-061.0700000000000001e-061.17e-061.2599999999999998e-061.01e-067.5e-071.03e-061.0400000000000002e-067.3e-075.699999999999999e-076.1e-077.700000000000003e-077.900000000000001e-074.6000000000000004e-077e-077.900000000000001e-076.2e-074.5000000000000003e-075.6e-076.2e-074.8e-071.6e-075.3e-07
  2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,ayi:AcuityBrandsLightingAndLightingControls850.0NANANA741.6NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
 TTM Greenblatt ROC _ _▆▄▄▅▄▄▄▇▆▅▆▇▅▄▆█▇▅▆▇▆▅▆▆▅▄▄▄▃▂▃▃▂▁▂▂▂▁▂▂▂▁▂▂118.191.085.7105.983.081.483.6130.3120.395.9116.4142.1105.988.0118.6152.7131.5108.0126.6135.1121.0106.7112.4111.899.278.686.790.772.658.477.478.250.045.148.261.157.339.050.655.850.237.245.548.0NANANA
  2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
us-gaap:AllocatedShareBasedCompensationExpense ▃▃▃▂▃▃█▃▃▃▃▃▃▄▄▃▃▃▃▃▃▃▃▂▂▁▁▂▂▁▂▁▁▁▁▁▁▁▁▁▁▁▁7.17.57.75.77.88.016.76.37.67.57.87.97.68.38.57.98.18.17.97.86.96.66.45.44.44.34.14.54.54.24.53.74.24.34.34.03.84.04.23.73.73.43.4NANANANA
us-gaap:ComprehensiveIncomeNetOfTax ▇▄▄▆▃▃▄▄▅▄▅▇▄▆▄█▅▄▄▃▅▄▄▂▄▂▃▃▃▂▃▄▂▂▂▁▂▁▁▂▂▂▂106.471.365.8102.648.455.260.866.881.072.673.4114.567.3101.262.6130.386.672.771.853.385.357.665.638.563.937.543.840.846.332.047.466.732.325.225.315.324.823.420.835.432.025.228.9NANANANA
us-gaap:CostOfGoodsAndServicesSold ▃▁▂▄▁▂▂▄▅▄▅█▅▃▃513.1439.9459.6516.1448.6480.3478.9543.4564.0520.5565.1649.3554.9497.6492.9NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:GrossProfit ▇▆▆▇▆▆▆█▇▆▇█▇▆▆█▇▆▇█▇▆▅▆▅▄▄▅▃▃▃▃▃▂▂▃▂▂▂▂▂▁▂▂▁▁▁386.6336.7332.4375.1327.6343.9355.8394.7383.6333.9367.5412.3389.4334.9350.2406.9378.9335.8359.6402.1377.9336.9319.4321.3295.6255.7273.0283.5243.4215.2237.1237.3221.1189.7189.5210.5202.0181.9193.6200.4189.6163.8176.1184.4163.6152.3161.3
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments ▆▅▅▆▅▄▄▇▆▅▆█▆▅▆█▇▆▇▇▆▆▆▅▆▄▅▅▄▃▄▄▃▂▃▃▃▂▃▃▃▂▂▃▂▁▂109.282.279.297.678.574.773.9120.5111.886.2106.4137.199.278.7110.9142.3124.699.4126.3127.2112.699.6105.292.4100.870.779.782.064.650.368.870.345.237.240.450.752.330.245.850.141.829.036.840.632.99.835.5
us-gaap:IncomeTaxExpenseBenefit ▅▅▅▅▅▅▅▅▅▅▆▆▅▁▇█▇▆▇▇▇▆▆▆▆▅▆▆▅▅▅▅▄▄▄▅▅▄▄▄▄▄▄▄▄▃▄23.519.319.623.918.117.516.924.423.419.926.828.926.2-18.239.451.842.432.144.644.338.634.136.832.336.324.328.627.220.817.624.325.413.512.514.317.518.710.715.915.914.79.112.413.411.62.612.2
us-gaap:IncomeTaxesPaid ▃▄▂▄▁▃▁▁▃▆▁▃▃█▁▅▄▇▄▄▃▅▂▃▃▅▂▃▂▄▂▂▂▂▂▂▁▃▂▂▁▂▁▂▁▃▁20.029.49.332.499999999999992.225.34.63.925.857.16.125.121.277.62.746.229.668.829.032.027.749.611.427.021.340.917.122.48.433.213.413.68.317.37.612.56.224.57.512.65.013.63.07.71.719.34.0
us-gaap:InterestExpense ▄▅▂▁▃▄███████▇▇▇▇▇▇▇▇▇▇▆▇▇▆▇▇▆▆▆▆▆▆▆▆▆▆▅▆▆▆6.46.95.14.56.16.89.09.09.19.19.29.28.98.78.78.58.58.58.68.48.38.38.38.18.28.28.18.28.28.18.18.08.08.07.97.87.87.87.87.57.67.67.6NANANANA
us-gaap:InterestPaidNet ▁▁█▂▂▆▇▆▁▆▇▇▁▆▇0.10.415.12.93.110.912.910.80.311.013.513.00.310.712.7NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss ▆▅▅▆▅▄▄▇▇▅▆█▆▇▅▇▆▅▆▆▆▅▅▅▅▄▄▄▄▃▄▄▃▂▂▃▃▂▃▃▂▂▂▂▂▁▂85.762.959.673.760.457.257.096.188.466.379.6108.273.096.971.590.582.267.381.782.974.065.568.460.164.546.451.154.843.832.744.544.931.724.726.133.333.619.529.934.227.019.924.427.221.37.823.3
us-gaap:NonoperatingIncomeExpense ▁▁█-8.9-8.8-6.5NA-4.5-6.7-9.7NA-8.5-9.7-10.0NA-6.7-9.3-7.7NA-6.9-8.6-0.3NA-8.4-7.1-7.2NA1.6-7.9NANANANANANANANANANANANANANA-8.4-8.2-8.7NA-6.3-18.0-7.2
us-gaap:OperatingIncomeLoss ▆▅▄▅▄▄▄▇▆▅▆▇▅▄▆█▇▅▇▇▆▅▆▆▅▄▄▅▄▃▄▄▂▂▂▃▃▂▂▃▂▂▂▂▂▁▂118.191.085.7105.983.081.483.6130.3120.395.9116.4142.1105.988.0118.6152.7131.5108.0126.6135.1121.0106.7112.4111.899.278.686.790.772.658.477.478.250.045.148.261.157.339.050.655.850.237.245.548.039.227.842.7
us-gaap:OtherComprehensiveIncomeLossNetOfTax █▂▁20.78.46.2NA-12.0-2.03.8NA-7.46.3-6.2NA-5.74.3-8.9NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherNonoperatingIncomeExpense ▄▄▄▃▅▅▄▄▅▄▄▆▅▄▅▄▅▅▇▅▅▅▅▁█▅▅▅▅▅▅▅▆▅▅▄▆▄▆▅▅▅▄▅▅▅▅-2.7-2.2-1.6-4.40.9-1.0-1.4-2.1-0.2-1.1-1.34.01.7-1.30.4-2.21.2-0.67.90.1-0.31.10.7-11.79.50.10.9-0.70.1-0.1-0.60.03.0-0.1-0.1-2.82.7-1.12.91.7-0.9-0.7-1.2-0.11.00.6-0.5
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ▆▅▅▆▅▆▆▇▇▆▇█▇▆▆▇▆▅▆▇▆▅▅▅▄▃▄▄▃▃▃▃▃▂▂▂▂▂▂▂▂▁▁▂▁▁▁899.7776.6792.0891.2776.2824.2834.7938.1947.6854.4932.61061.2944.0832.1842.8957.6891.6804.7851.2925.5851.5777.8736.6759.5683.7616.1647.4668.7603.9546.2574.7579.8541.5486.7481.1514.3487.5457.7474.3496.2458.3416.1425.0444.1407.6383.5391.7
us-gaap:Revenues ▆▅▅▆▅▆▆▇▇▆▇█▇▆▆▇▆▅▆▇▆▅▅▅▄▃▄▄▃▃▃▃▃▂▂▂▂▂▂▂▂▁▁▂▁▁▁899.7776.6792.0891.2776.2824.2834.7938.1947.6854.4932.61061.2944.0832.1842.8957.6891.6804.7851.2925.5851.5777.8736.6759.5683.7616.1647.4668.7603.9546.2574.7579.8541.5486.7481.1514.3487.5457.7474.3496.2458.3416.1425.0444.1407.6383.5391.7
us-gaap:SellingGeneralAndAdministrativeExpense █▇▇▇▆▇█▇▇▆▇██▇▆▇▇▆▆▇▇▆▅▅▄▄▄▄▃▃▃▃▃▂▂▂▂▂▂▂▂▁▂▂▁▁▁268.0245.4246.0261.0241.3260.9265.3263.9263.4237.6250.1275.3273.6246.3231.4244.6246.9227.8231.8262.1247.2230.1206.6206.9196.0177.7176.3192.8170.8157.0159.7158.8163.9144.3140.6147.2142.8136.3140.3144.6139.5126.6130.6133.2124.7119.1118.5
  2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
  2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
us-gaap:Assets █▇▇██▇▇▇▇▆▆▆▆▅▆▆▅▆▆▆▅▅▄▄▄▃▃▃▃▃▃▂▂▂▂▂▂▁▁▁▁▁▁▁3560.33360.23388.63491.73442.33396.73305.23172.43121.12991.83015.32988.82882.42750.52961.42899.62730.52999.12963.42948.02783.22619.82506.32429.62327.82218.12206.12168.12049.81972.31966.21903.81829.81742.41731.71736.91656.51597.91595.01597.41591.01537.01521.41503.6NANANA
us-gaap:Liabilities █▇▇▆▆▆▆▅▅▄▅▅▅▃▅▅▄▄▅▅▄▃▃▃▂▁▂▂▁1521.21427.71451.61364.21346.61351.61317.91253.51236.21190.01264.41272.01282.01114.71235.31234.01195.31194.31233.31288.21195.31126.41071.41069.61014.1966.5995.41004.6925.0NANA910.3NANANANANANANANANANANANANANANA
us-gaap:LiabilitiesAndStockholdersEquity █▇▇██▇▇▇▇▆▆▆▆▅▆▆▅▆▆▆▅▅▄▄▄▃▃▃▃▃▃▂▂▂▂▂▂▁▁▁▁▁▁▁3560.33360.23388.63491.73442.33396.73305.23172.43121.12991.83015.32988.82882.42750.52961.42899.62730.52999.12963.42948.02783.22619.82506.32429.62327.82218.12206.12168.12049.81972.31966.21903.81829.81742.41731.71736.91656.51597.91595.01597.41591.01537.01521.41503.6NANANA
us-gaap:StockholdersEquity █▇▇███▇▇▇▆▆▆▅▆▆▆▅▆▆▆▅▅▅▄▄▄▄▃▃▃▃▂▂▂▂▂▂▁▁▁▁▁▁▁2039.11932.51937.02127.52095.72045.11987.31918.91884.91801.81750.91716.81600.41635.81726.11665.61535.21804.81730.11659.81587.91493.41434.91360.01313.71251.61210.71163.51124.81079.41039.6993.5922.6890.7866.1834.0819.0795.2765.4757.0779.0748.0722.7694.4NANANA
  2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
us-gaap:AssetsCurrent █▇▇▇▇▆▆▇▇▆▆▆▅▅▆▆▅▇▇▆▅▄▆▇▇▆▆▅▅▄▄▃▃▂▂▂▂▁▁▁▁▁▁▁1538.51344.11347.71439.71380.31307.81206.41441.81379.31232.61251.81211.11105.81093.41323.81245.61094.11363.91356.21322.91154.8997.71255.21436.51343.61250.21225.51186.71070.0990.5979.3913.5837.4783.7773.3779.0704.1642.7639.2630.5626.5581.9613.4626.3NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▆▅▆▆▆▄▃▅▄▃▃▂▁▃▅▄▂▅▅▅▄▃▆█▇▆▆▆▅▅▄▄▄▃▃▃▃▂▂▂▂▂▂▂▂▂▁593.5498.7507.0560.7520.6380.6266.6461.0333.7232.0214.8129.194.3229.8428.6311.1189.7463.2451.2413.2337.0224.3560.2756.8652.1601.1583.0552.5467.3408.2398.1359.1301.9262.8267.5284.5228.3180.6172.7170.2160.8125.5152.2191.0194.5155.848.3
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents █▇▇█▇▅▃▆▄▃▃▁▁593.5498.7507.0560.7520.6380.6266.6461.0333.7232.0214.8129.194.3NANA311.1NANANA413.2NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AccountsReceivableNetCurrent ▆▅▅▆▅▆▆▇▇▆▇█▇▆▆▇▆▆▆▇▅▅▄▄▄▃▃▃▃▂▃▂▂▂▁▁▁▁▁▁▁▁▁▁509.0448.0445.3500.3451.3506.7507.7561.0586.0520.1556.7637.9572.6500.2514.3573.3521.1500.9522.5572.8494.0458.8415.7411.7392.8355.7371.8373.4352.5308.7332.6318.3299.5282.3270.5263.8269.6257.6262.6262.6255.3243.7249.4255.1NANANA
us-gaap:InventoryNet ▇▅▅▅▆▆▆▆▇████▅▆▆▆▆▆▅▅▄▃▃▄▃▃▃▃▃▃▂▂▂▂▂▂▁▁▁▂▂▂▁370.0321.3316.1320.1355.3348.6352.6340.8390.6413.0420.2411.8406.5322.1339.6328.6342.2353.7334.4295.2288.9277.5242.3224.8256.4237.4214.2212.0213.8228.6208.3203.0201.2193.7193.7194.1168.7159.0162.5165.9178.0174.1173.7149.0NANANA
us-gaap:InventoryFinishedGoods ▇▆▆▆▆▅▅▅▇████▅▅▅▅▅▅▄▄▄▃▂▃▃▂▂▂▂▂▁▂▁▁▁▁▁▁▁241.9201.1196.4199.1204.4185.3186.8183.7240.3259.5261.4251.8251.4187.2193.1180.8184.8185.2174.0145.3149.9144.1127.7113.9134.2120.299.997.6106.8111.694.990.993.686.585.884.680.879.678.978.5NANANA73.2NANANA
us-gaap:PrepaidExpenseAndOtherAssetsCurrent ▇██▆▅▇██▇▇▆▃▃▄▄▃▄▄▅▄▃▃▃▁▂▃▃▂▂▃▂▁▂▃▂▂▂▃▂▁66.076.179.358.653.171.979.579.069.067.560.132.332.441.341.332.641.146.148.141.734.937.137.020.121.735.135.727.321.030.425.619.521.632.229.023.622.230.125.715.8NANANA13.9NANANA
  2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
us-gaap:NoncurrentAssets NANANA366.1NANANA297.3NANANA308.4NANANA304.3NANANA295.9NANANA204.7NANANA180.4NANANA177.0NANANA172.2NANANA173.5NANANA162.2NANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical us-gaap:DomesticCountryNANANA301.2NANANA248.9NANANA256.4NANANA252.8NANANA254.5NANANA179.1NANANA149.2NANANA146.1NANANA141.9NANANA140.8NANANA130.4NANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical us-gaap:NonUsNANANA64.9NANANA48.4NANANA52.0NANANA51.5NANANA41.4NANANA25.6NANANA31.2NANANA30.9NANANANANANANANANANANANANANANA
us-gaap:PropertyPlantAndEquipmentGross ███▇▇▇▇▇▇▆▆▆▆▆▅▅▅▅▅▅▄▄▃▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▂▂▁▁830.7818.9818.4802.8792.0788.2774.0757.7751.7748.5732.4728.6721.2705.8696.6687.8675.6661.4658.8645.7637.5621.3553.5527.0529.0516.1513.5499.6492.8483.6476.3471.3469.5472.3480.9468.5480.7478.6474.2484.9494.6485.9476.7458.8NANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment ██▇▇▆▆▆▅▅▅▅▄▄▄▄▃▃▃▃▃▃▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▂▂▂▂▂▂▁▁571.0556.9549.6532.3516.9508.9495.6480.4471.2464.3449.4441.9433.2423.0410.5400.1391.2383.6385.3377.9374.6364.7362.2352.4364.1357.0352.8347.1344.6336.5329.2323.4322.4327.4337.1329.3348.3345.2340.6341.7347.6340.8333.2320.4NANANA
us-gaap:AmortizationOfIntangibleAssets ▇▇▇███▇▅▅▅▅▆▅▄▄▄▆▅▄▁▅▄▃▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂10.210.110.110.910.810.49.67.77.77.77.78.07.26.76.66.18.27.85.92.97.56.05.02.72.72.82.82.82.82.92.72.92.82.62.62.72.72.63.2NANANANANANANANA
us-gaap:PropertyPlantAndEquipmentNet ▇▇▇▇▇█████████████▇▇▇▇▄▃▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▂▂▁▁259.7262.0268.8270.5275.1279.3278.4277.3280.5284.2283.0286.7288.0282.8286.1287.7284.4277.8273.5267.8262.9256.6191.3174.6164.9159.1160.7152.5148.2147.1147.1147.9147.1144.9143.8139.2132.4133.4133.6143.2147.0145.1143.5138.4NANANA
us-gaap:Goodwill ███████▆▆▆▆▆▆▆▅▅▅▅▆▆▅▅▃▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▂▂▂▂▁▁1096.21084.21080.61080.01086.41089.61115.5967.3964.1968.5966.9970.6970.5911.9896.5900.9887.5893.3941.8947.8889.8883.7728.0565.0565.3565.6567.9569.4570.1570.0570.4568.2573.4554.7555.1554.9554.0557.3559.6559.2575.4571.3542.0515.6NANANA
 us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass us-gaap:TradeNamesNANANA174.3NANANA141.3NANANA144.3NANANA136.7NANANA135.0NANANA99.5NANANA100.0NANANA100.0NANANANANANANANANANANANANANANA
us-gaap:IntangibleAssetsNetExcludingGoodwill ▇▇▇████▅▅▆▆▆▆▅▅▅▅▅▄▄▅▅▃▁▁▁▁▂▂▂▂▂▂▁▂▂▂▂▂▂▁▁▁▁580.1587.2596.0605.9612.9628.8621.5466.0473.1482.4489.5498.7504.6447.5439.9448.8448.3446.4372.8381.4448.7452.8303.0223.4226.1222.6227.6231.6235.3238.4241.1245.1242.0228.0228.1230.8233.5234.5233.0234.2212.5212.5197.2199.5NANANA
us-gaap:OperatingLeaseRightOfUseAsset ▄▆█▆▁▃▄60.263.365.863.456.759.460.1NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent ▄▁▇███▃▁▃23.116.927.029.529.029.721.017.721.3NANA18.8NANANA13.2NANANANANANANANANANANANANANANANANANANANANANANANA25.822.421.620.1NANANA
  2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
us-gaap:AccountsPayableCurrent ▆▅▄▅▅▅▅▅▆▅▆██▅▆▆▅▆▆▆▅▄▅▄▄▄▃▄▃▃▃▃▃▂▂▂▂▁▂▂▁▁▁▁380.4321.5317.3326.5331.3333.5321.7338.8378.8351.1389.7451.1464.5341.9364.6395.1359.8365.5390.9401.0353.9317.8329.1311.1301.9280.9277.5287.4256.6244.4244.3249.5239.7213.7204.6232.7202.7189.4198.9203.8188.3175.7184.6195.0NANANA
us-gaap:ContractWithCustomerLiabilityCurrent ▅▆▂▃▅▅▆▂█▁▁7.07.35.25.46.67.07.44.78.54.44.4NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LiabilitiesCurrent █▆▆▇▆▆▆▆▇▆▇██▅▆▇▆▆▇█▆▅▅▅▅▄▄▄▃▂▃▃▂▁▂▂▂▁▂▂▁▁▁▂671.4576.3583.4617.6575.9572.2572.6596.1631.0584.4652.0682.7672.1509.6594.9600.9544.3546.8609.8672.5584.6513.4512.7520.9486.1434.1453.6470.5408.7366.9395.9386.2358.1312.5321.3364.8331.1292.2317.4331.4313.3287.2303.5321.3NANANA
us-gaap:LongTermDebtCurrent ▂▂▂█▆▅▄▄▄▃▁▁▁▁▁▁▁▁▁▁▁▁4.04.04.324.317.815.49.29.19.17.00.40.41.60.40.40.40.40.30.30.20.20.2NA0.0NANANANANANANANANANANANANANANA0.0NANANA0.0NANANA
us-gaap:OperatingLeaseLiabilityCurrent ▂▅█▅▁▂▃16.417.318.117.216.216.616.7NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAccruedLiabilitiesCurrent ▅▄▆▅▅▅▆▆▆▅█▅▅▄▇▅▅▅▇▆▅▄▅▄▄▃▄▄▃▂▃▃▂▁▂▂▂▁▂▂▂▁▂▁165.6142.1168.4164.2154.8151.1174.5175.0176.7165.3222.2164.2147.6129.1198.7163.6158.0156.0192.0176.1152.7145.0149.6130.0124.7107.6133.8127.1116.391.3123.2107.592.179.693.986.086.869.094.581.487.279.188.673.4NANANA
  2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
us-gaap:LongTermDebt NANANA401.1NANANA356.6NANANA356.8NANANA356.9NANANA355.2NANANA352.4NANANA353.6353.6353.6353.6353.6353.5353.5353.5353.5353.5353.4353.4353.4NANANA353.3NANANA
 us-gaap:LongTermDebt dei:LegalEntity,us-gaap:DebtInstrument,us-gaap:LongtermDebtType ayi:AcuityBrandsLightingInc,ayi:A2150SeniorUnsecuredNotesDueDecember2030,us-gaap:UnsecuredDebt█▃▁494.2494.0493.9NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType ayi:A2016FixedrateBankLoans,us-gaap:BankLoanObligationsNANA2.02.12.12.22.32.72.83.03.13.33.43.63.73.83.73.23.22.5NANANA0.0NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType ayi:UnsecuredDelayedDrawTermLoan,us-gaap:UnsecuredDebtNANANA395.0397.5400.0NA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LongTermDebtNoncurrent ███▂▃▃▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁494.2494.0495.6376.8385.8390.8347.1347.5347.5349.7356.3356.4356.4356.5356.5356.5356.3355.8355.7355.0354.2353.5352.4352.4353.7353.7353.6353.6353.6353.6353.6353.6353.5353.5353.5353.5353.5353.4353.4353.4353.4353.4353.4353.3NANANA
us-gaap:DeferredIncomeTaxLiabilitiesNet ▅▄▄▄▇▇█▃▃▃▃▃▃▁▆▆103.395.595.394.9119.2117.8122.792.789.689.888.792.587.976.1108.3108.2NANANA74.6NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent ▃▃▃▅▆▆▆▆▂▂▂▃▅▅▆▆████▄▄▄▄▂▂▂▃▁▁▁▂▅▅▅▅▁▂▂▂▃▃▃▃67.368.069.291.694.796.998.799.761.962.962.564.686.794.395.996.9116.3116.4117.6119.979.679.981.783.958.160.262.165.148.850.652.254.790.391.693.890.152.657.156.760.571.872.570.771.1NANANA
us-gaap:OtherLiabilitiesNoncurrent ▇██▁▇▇▇▁▆▆▆▁▄▄▄▁▄▄▄▁▄▄▄▁▃▄▄▃▃▄▄▁▄▄▄▁▄130.2134.9143.32.6117.5118.8120.25.298.794.996.87.369.669.271.16.263.664.668.26.853.257.259.99.250.352.860.550.250.158.261.81.561.255.058.62.754.6NANA1.651.653.055.345.7NANANA
us-gaap:OperatingLeaseLiabilityNoncurrent ▂▄█▇▁▂▃48.452.258.156.846.448.149.4NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANANA14.9NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANANA12.3NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NANANA9.7NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANANA9.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANANA14.4NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
us-gaap:StockholdersEquity █▇▇███▇▇▇▆▆▆▅▆▆▆▅▆▆▆▅▅▅▄▄▄▄▃▃▃▃▂▂▂▂▂▂▁▁▁▁▁▁▁2039.11932.51937.02127.52095.72045.11987.31918.91884.91801.81750.91716.81600.41635.81726.11665.61535.21804.81730.11659.81587.91493.41434.91360.01313.71251.61210.71163.51124.81079.41039.6993.5922.6890.7866.1834.0819.0795.2765.4757.0779.0748.0722.7694.4NANANA
us-gaap:AdditionalPaidInCapitalCommonStock ████▇▇▇▇▇▇▆▆▆▆▆▆▆▅▅▅▅▄▄▄▄▄▃▃▃▃▃▃▂▂▂▂▂▂▁▁▁▁▁▁985.1977.8968.6963.6958.0950.6942.8930.0924.7917.5910.2906.3899.2892.5884.3881.0875.4868.4860.7856.4833.6818.7812.1797.1783.6779.6770.5761.5758.0753.2739.8735.5725.7720.4715.4703.1697.8694.3682.4680.3676.2670.8666.9661.9NANANA
us-gaap:RetainedEarningsAccumulatedDeficit ███▇▇▇▇▇▆▆▆▆▅▅▅▅▄▄▄▄▄▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁2717.02635.92577.72523.32454.82399.62347.62295.82204.92121.62060.61999.21896.21828.51725.91659.91574.91498.41436.81360.91283.81215.51155.71093.01038.6979.8939.1893.6844.4806.3779.2740.3701.0675.0655.9635.3607.6579.5565.5541.0512.5491.0477.8459.0NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▅▄▃▃▁▂▂▂▄▄▄▄▄▄▄▅▂▂▂▂▄▄▄▄▆▆▆▇███▇▆▆▆▆▇█▇██▇▇▇-97.4-118.1-126.5-132.7-161.6-149.6-147.6-151.4-122.1-114.7-121.0-114.8-121.1-115.4-108.6-99.7-139.5-143.9-149.3-139.4-109.8-121.1-113.2-110.4-88.8-88.1-79.2-71.9-57.9-60.4-59.7-62.6-84.4-85.0-85.5-84.7-66.8-59.0-62.9-53.8-57.4-61.5-66.8-71.3NANANA
us-gaap:TreasuryStockValue ███▆▆▆▆▆▅▅▅▅▅▅▃▃▃▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁1566.11563.61483.31227.21156.01156.01156.01156.01123.11123.11099.41074.41074.4970.3776.0776.1776.1418.6418.6418.6420.2420.2420.2420.2420.2420.2420.2420.2420.2420.2420.2420.2420.2420.2420.2420.2420.1420.1420.1411.0352.8352.8355.7355.7NANANA
  2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
us-gaap:NetCashProvidedByUsedInOperatingActivities ▅▅▆▆▇▅▆█▆▄▆▃▆▃▆▆▅▃▃▅▆▄▃▆▄▃▃▅▄▂▃▄▄▂▁▄▄▂▂▄▃▂▂▄▃▂▃103.688.7123.9126.5163.685.1129.6182.7123.756.5131.852.5122.438.5139.8136.9107.732.938.7101.8124.468.451.1130.782.728.846.7104.371.414.043.464.568.114.2-14.569.465.29.927.779.552.923.45.363.549.66.441.0
us-gaap:NetCashProvidedByUsedInInvestingActivities ██████▂█████▅▇█████▇█▁▃██████████████████▇▇████-7.5-9.8-14.1-16.8-13.5-14.4-315.1-16.1-14.9-10.7-11.3-10.0-148.4-37.0-10.3-12.1-19.3-16.3-1.1-31.5-17.9-395.1-260.2-26.8-18.6-8.5-18.5-10.4-8.3-8.0-7.6-9.0-24.4-13.9-11.2-12.5-9.4-5.2-8.0-6.0-14.2-49.5-42.8-28.6-6.2-5.2-4.3
us-gaap:NetCashProvidedByUsedInFinancingActivities ▆▅▄▅▆▇▆▆▆▆▆▆▅▃▆▆▁▆▆▆▆▆▇▆▆▆▆▆▆▆▆▆▆▆▇▆▆▆▆▅▆▆▆▆▆█▆-6.7-89.5-164.1-77.1-8.144.4-9.5-39.2-5.6-29.3-34.1-7.4-108.6-199.9-10.8-5.6-363.3-5.12.65.14.1-4.014.23.4-12.4-0.25.3-8.2-4.74.42.21.3-4.0-4.38.1-3.8-5.23.1-12.8-62.9-3.6-3.0-2.3-38.8-2.5107.6-7.1
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▇▅▄▆█▇▁█▇▅▇▆94.8-8.3-53.740.1140.0114.0-194.4127.3101.717.285.734.8NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
us-gaap:DepreciationDepletionAndAmortization ██████▇▇▇▆▆▆▆▅▅▅▆▅▄▃▅▄▃▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁25.025.025.025.825.525.624.222.622.422.021.321.820.219.319.018.120.019.317.213.618.316.414.311.611.711.211.311.210.810.810.610.610.39.910.010.110.29.410.110.410.59.69.6NANANANA
us-gaap:IncreaseDecreaseInAccountsPayable ▆▄▃▃▃▄▃▂▅▂▁▃█▃▂▅▃▂▃▅▅▂▄▄▄▄▃▅▄▃▃▄▄▄▂▅▄▃▃▄▄▃▃▅▄▃▃57.04.9-9.2-4.9-2.410.4-22.7-40.031.1-41.1-61.5-10.4116.9-21.5-32.533.1-5.5-25.0-7.246.435.1-27.010.86.121.34.5-8.831.012.1-0.1-5.49.924.59.2-28.429.414.1-9.7-4.215.612.5-10.8-11.830.67.4-5.61.1
us-gaap:IncreaseDecreaseInAccountsReceivable ▇▅▃▇▃▅▂▄█▃▁██▄▃▇▆▄▃█▆▅▄▆▆▄▅▆▇▄▅▆▆▅▅▅▅▅▅▅▅▅▅▆▅▅▅57.71.8-56.345.4-53.0-0.6-66.3-25.667.5-37.6-102.069.366.7-15.6-57.647.719.3-22.1-47.678.734.2-5.9-12.420.637.4-12.60.721.443.1-23.114.019.216.512.56.6-7.513.9-5.81.77.311.7-10.4-11.519.012.56.3-8.6
us-gaap:IncreaseDecreaseInInventories ▇▄▄▂▄▄▄▁▃▃▄▄█▃▄▃▃▅▆▄▄▃▅▂▅▅▄▄▃▅▄▄▄▄▄▅▄▄▄▃▄▄▅▄▄▄▄47.44.5-4.1-37.07.3-3.4-4.9-50.3-21.8-7.99.28.073.2-17.911.1-14.7-12.419.240.39.810.7-10.113.6-31.619.324.52.9-1.4-14.820.25.01.85.9-0.7-0.524.910.3-3.7-2.9-12.33.2-3.417.85.5-4.23.14.2
us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet ▁█▆▆▅▅▃▃▅▅▄▇▆▅▄▆▅▅▅▅▆▅▆▆▆▆▅▆▇▆▆▆▆▆▅▅▆▆▄▆▆▆▄▆▆▅▄-26.918.03.34.10.11.1-14.3-13.1-4.4-0.1-7.98.42.40.9-10.62.5-1.40.5-1.1-1.73.9-2.83.23.13.44.6-3.54.410.03.12.53.13.44.20.9-0.15.33.8-6.44.53.53.5-8.54.14.90.8-5.8
us-gaap:NetCashProvidedByUsedInOperatingActivities ▅▅▆▆▇▅▆█▆▄▆▃▆▃▆▆▅▃▃▅▆▄▃▆▄▃▃▅▄▂▃▄▄▂▁▄▄▂▂▄▃▂▂▄▃▂▃103.688.7123.9126.5163.685.1129.6182.7123.756.5131.852.5122.438.5139.8136.9107.732.938.7101.8124.468.451.1130.782.728.846.7104.371.414.043.464.568.114.2-14.569.465.29.927.779.552.923.45.363.549.66.441.0
us-gaap:NetIncomeLoss ▆▅▅▆▅▄▄▇▇▅▆█▆▇▅▇▆▅▆▆▆▅▅▅▅▄▄▄▄▃▄▄▃▂▂▃▃▂▃▃▂▂▂▂▂▁▂85.762.959.673.760.457.257.096.188.466.379.6108.273.096.971.590.582.267.381.782.974.065.568.460.164.546.451.154.843.832.744.544.931.724.726.133.333.619.529.934.227.019.924.427.221.37.823.3
us-gaap:ShareBasedCompensation ▄▄▄▄▄▅█▄▄▄▄▅▄▅▅▅▅▅▅▄▄▄▄▄▃▃▃▃▃▃▃▃▃▃▃▃▃▃▂▃▃▃▁▃▃7.17.57.75.77.88.016.76.37.67.57.87.97.68.38.57.98.18.17.97.86.96.66.45.44.44.34.14.54.54.24.53.74.24.34.33.53.23.40.23.23.33.0-1.13.12.9NANA
  2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
us-gaap:NetCashProvidedByUsedInInvestingActivities ██████▂█████▅▇█████▇█▁▃██████████████████▇▇████-7.5-9.8-14.1-16.8-13.5-14.4-315.1-16.1-14.9-10.7-11.3-10.0-148.4-37.0-10.3-12.1-19.3-16.3-1.1-31.5-17.9-395.1-260.2-26.8-18.6-8.5-18.5-10.4-8.3-8.0-7.6-9.0-24.4-13.9-11.2-12.5-9.4-5.2-8.0-6.0-14.2-49.5-42.8-28.6-6.2-5.2-4.3
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▃▃▄▆▄▄▄▄▅▃▅▄▄▃▃▄▇▅▇█▆▇█▅▅▃▆▃▃▂▃▃▃▃▄▄▃▁▁▂▂▁▂▂▂▁▁9.49.811.416.613.413.311.613.214.910.914.011.411.310.610.312.119.416.319.521.918.020.723.114.215.38.518.510.58.38.08.59.29.510.711.212.69.45.24.25.95.65.16.76.06.45.24.3
  2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
us-gaap:NetCashProvidedByUsedInFinancingActivities ▆▅▄▅▆▇▆▆▆▆▆▆▅▃▆▆▁▆▆▆▆▆▇▆▆▆▆▆▆▆▆▆▆▆▇▆▆▆▆▅▆▆▆▆▆█▆-6.7-89.5-164.1-77.1-8.144.4-9.5-39.2-5.6-29.3-34.1-7.4-108.6-199.9-10.8-5.6-363.3-5.12.65.14.1-4.014.23.4-12.4-0.25.3-8.2-4.74.42.21.3-4.0-4.38.1-3.8-5.23.1-12.8-62.9-3.6-3.0-2.3-38.8-2.5107.6-7.1
us-gaap:ProceedsFromIssuanceOfLongTermDebt ▁▁█0.00.0493.9NA0.0NANANANANANANANA0.00.0-0.10.20.00.90.80.61.10.00.00.0NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:RepaymentsOfLongTermDebt ▁▁█▁▁▇▁▁▁▁▁▁▁▁▁0.02.0395.1-2.52.7350.10.40.10.10.10.10.10.10.10.1NANA0.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType ayi:A2016FixedrateBankLoans,us-gaap:BankLoanObligations0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType ayi:UnsecuredDelayedDrawTermLoan,us-gaap:UnsecuredDebtNANA395.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PaymentsOfDividendsCommonStock ▁▂▃▅▅▅▅▅▄▅▅▅▅▆▆▆▇▇██▇▇▇▇▇▇▇▇▇▇▇▇▇▇▆▆▆▆▆▇▇▇▇▇▇▇▇4.64.75.05.25.25.25.25.25.15.35.25.25.35.45.55.55.75.75.85.85.75.75.75.75.75.75.65.65.75.65.65.65.75.65.55.55.55.55.55.75.75.65.65.65.75.75.6
us-gaap:Dividends ▁▃█4.64.75.0NA5.25.25.2NA5.15.35.2NA5.35.45.5NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PaymentsForRepurchaseOfCommonStock ▁▃▆▂▁▁▁▂▁▁▁▁▃▅▁▁█▁▁▁▁▁▁2.683.1255.269.30.00.00.032.90.023.725.00.0104.1194.30.00.0357.50.00.40.00.00.00.0NANANANANANANANA0.00.00.00.00.00.00.09.258.10.00.02.9NANANANA
  2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:Range,us-gaap:DebtInstrument,us-gaap:LongtermDebtType srt:Maximum,ayi:A2016FixedrateBankLoans,us-gaap:BankLoanObligationsNANANA2e-06NANANA2e-08NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:Range,us-gaap:DebtInstrument,us-gaap:LongtermDebtType srt:Minimum,ayi:A2016FixedrateBankLoans,us-gaap:BankLoanObligationsNANANA8.000000000000001e-07NANANA8e-09NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA

Shares Issued

us-gaap:SharesIssued us-gaap:StatementEquityComponents

us-gaap:SharesIssued

us-gaap:CommonStock


Shares
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-31
Value35353638393939393939394040404141
Percentage of SharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued us-gaap:StatementClassOfStock

us-gaap:CommonStockSharesIssued

us-gaap:CommonStock


Common
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-312012-08-312011-08-312010-08-312009-08-312008-08-31
Value53535353535352525151504949
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding us-gaap:StatementEquityComponents

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStock


Common
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-31
Value383940414343
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-302018-05-312018-02-282017-11-302017-05-312017-02-282016-11-302016-05-312016-02-292015-11-302015-05-312015-02-282014-11-302014-05-312014-02-282013-11-302013-05-312013-02-282012-11-302012-05-312012-02-292011-11-302011-05-312011-02-282010-11-302010-05-312010-02-282009-11-30
Value363637393939393940404142434444434343434343434342424242424141434342434343
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-302018-05-312018-02-282017-11-302017-05-312017-02-282016-11-302016-05-312016-02-292015-11-302015-05-312015-02-282014-11-302014-05-312014-02-282013-11-302013-05-312013-02-282012-11-302012-05-312012-02-292011-11-302011-05-312011-02-282010-11-302010-05-312010-02-282009-11-30
Value353637393939393940404141434343434343434343424242424241414141424242424242
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EmployeeStockOption


Antidilutive
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-302018-05-312018-02-282017-11-302017-05-312017-02-282016-11-302016-05-312016-02-292015-11-302015-05-312015-02-282014-11-302014-05-312014-02-282013-11-302013-05-312013-02-28
Value100000.0954680.01127800.0852720.0443600.0278970.0283730.0314670.0212050.0239230.0189430.0163810.0149000.0128870.081487.047406.071115.028133.052143.078220.076617.047847.071780.029974.072736.0109110.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStock


Antidilutive
Period End2021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-302018-05-312018-02-282017-11-302017-05-312017-02-282016-11-302016-05-312016-02-292015-11-302015-05-312015-02-282014-11-302014-05-312014-02-282013-11-302013-05-312013-02-28
Value71812.0185420.0239530.0102210.0118040.0107800.0189680.0197010.0240780.0198190.0211580.0176250.0103750.025994.002965.045555.00037429.013988.0033807.000
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount7.516.428.123.042.338.060.392.9100.6104.6129.2118.380.531.90.04.2161.90.00.048.929.20.0112.80.00.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
Value1.881.531.451.442.432.231.681.992.711.812.341.712.161.911.541.871.91.71.51.581.391.491.071.181.271.010.761.031.040.740.580.610.780.80.460.710.80.630.460.570.630.490.180.54
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
Value1.871.521.441.442.422.221.671.982.71.82.331.72.151.91.531.861.891.691.491.571.371.481.071.171.261.010.751.031.030.730.570.610.780.790.460.70.790.620.450.560.620.480.170.53
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Income Loss From Continuing Operations Per Basic Share

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare


Income
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-302018-05-312018-02-282017-11-302017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
Value2.41.751.581.531.451.442.231.681.991.812.341.711.911.541.871.891.71.51.581.391.491.071.181.261.010.761.031.040.740.580.610.780.80.460.710.80.630.460.570.630.490.170.54
Percentage of IncomeLossFromContinuingOperationsPerBasicShare100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Income Loss From Continuing Operations Per Diluted Share

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare


Income
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-302018-05-312018-02-282017-11-302017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
Value2.371.741.571.521.441.442.221.671.981.82.331.71.91.531.861.881.691.491.571.371.481.071.171.261.010.751.031.040.730.570.610.770.790.460.70.790.620.450.560.620.480.160.53
Percentage of IncomeLossFromContinuingOperationsPerDilutedShare100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:AllocatedShareBasedCompensationExpense


Allocated
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-30
Value7.17.57.75.77.88.0166.37.67.57.87.97.68.38.57.98.18.17.97.86.96.66.45.44.44.34.14.54.54.24.53.74.24.34.34.03.84.04.23.73.73.43.4
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.81.01.00.61.01.02.00.70.80.90.80.70.81.01.00.80.91.00.90.80.80.80.90.70.60.70.60.70.70.80.80.60.80.90.90.80.80.90.90.70.80.80.8

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-30
Value1067165102485560668172731146710162130867271538557653863374340463247663225251524232035322528
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.89.28.311.56.26.77.37.18.58.57.910.87.112.27.413.69.79.08.45.810.07.48.95.19.36.16.86.17.75.98.211.56.05.25.33.05.15.14.47.17.06.16.8

Cost Of Goods And Services Sold

us-gaap:CostOfGoodsAndServicesSold

us-gaap:CostOfGoodsAndServicesSold


Cost
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-30
Value513439459516448480478543564520565649554497492
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax57.056.658.057.957.858.357.457.959.560.960.661.258.859.858.5

Gross Profit

us-gaap:GrossProfit

us-gaap:GrossProfit


Gross
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
Value386336332375327343355394383333367412389334350406378335359402377336319321295255273283243215237237221189189210202181193200189163176184163152161
Percentage of GrossProfit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax43.043.442.042.142.241.742.642.140.539.139.438.941.240.241.642.542.541.742.243.444.443.343.442.343.241.542.242.440.339.441.340.940.839.039.440.941.439.740.840.441.439.441.441.540.139.741.2

Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments


Income
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
Value10982799778747312011186106137997811014212499126127112991059210070798264506870453740505230455041293640329.835
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.110.610.011.010.19.18.912.811.810.111.412.910.59.513.214.914.012.414.813.713.212.814.312.214.711.512.312.310.79.212.012.18.37.68.49.910.76.69.710.19.17.08.79.18.12.69.1

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
Value23191923181716242319262826-18.23951423244443834363236242827201724251312141718101515149.11213112.612
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.62.52.52.72.32.12.02.62.52.32.92.72.8-2.24.75.44.84.05.24.84.54.45.04.35.33.94.44.13.43.24.24.42.52.63.03.43.82.33.43.23.22.22.93.02.80.73.1

Income Taxes Paid

us-gaap:IncomeTaxesPaid

us-gaap:IncomeTaxesPaid


Income
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
Value20299.3322.2254.63.925576.12521772.7462968293227491127214017228.43313138.3177.6126.2247.5125.0133.07.71.7194.0
Percentage of IncomeTaxesPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.23.81.23.60.33.10.60.42.76.70.72.42.29.30.34.83.38.53.43.53.36.41.53.63.16.62.63.31.46.12.32.31.53.61.62.41.35.41.62.51.13.30.71.70.45.01.0

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-30
Value6.46.95.14.56.16.89.09.09.19.19.29.28.98.78.78.58.58.58.68.48.38.38.38.18.28.28.18.28.28.18.18.08.08.07.97.87.87.87.87.57.67.67.6
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.70.90.60.50.80.81.11.01.01.11.00.90.91.01.00.91.01.11.00.91.01.11.11.11.21.31.31.21.41.51.41.41.51.61.61.51.61.71.61.51.71.81.8

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-30
Value0.10.4152.93.11012100.31113130.31012
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.11.90.30.41.31.51.20.01.31.41.20.01.31.5

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
Value85625973605757968866791087396719082678182746568606446515443324444312426333319293427192427217.823
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.58.17.58.37.86.96.810.29.37.88.510.27.711.68.59.59.28.49.69.08.78.49.37.99.47.57.98.27.36.07.77.75.95.15.46.56.94.36.36.95.94.85.76.15.22.05.9

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-30
Value856259605757886679108739671
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.58.17.57.86.96.89.37.88.510.27.711.68.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.0

Nonoperating Income Expense

us-gaap:NonoperatingIncomeExpense

us-gaap:NonoperatingIncomeExpense


Nonoperating
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-302018-05-312018-02-282017-11-302017-05-312017-02-282016-11-302016-05-312016-02-292015-11-302015-05-312015-02-282011-05-312011-02-282010-11-302010-05-312010-02-282009-11-30
Value-8900000.0-8800000.0-6500000.0-4500000.0-6700000.0-9700000.0-8500000.0-9700000.0-10000000.0-6700000.0-9300000.0-7700000.0-6900000.0-8600000.0-300000.0-8400000.0-7100000.0-7200000.01600000.0-7900000.0-8400000.0-8200000.0-8700000.0-6300000.0-18000000.0-7200000.0
Percentage of NonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.0-1.1-0.8-0.6-0.8-1.2-0.9-1.1-1.1-0.7-1.1-0.9-0.8-1.1-0.0-1.0-0.9-1.00.2-1.3-1.8-2.0-2.0-1.5-4.7-1.8

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
Value118918510583818313012095116142105881181521311081261351211061121119978869072587778504548615739505550374548392742
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.111.710.811.910.79.910.013.912.711.212.513.411.210.614.115.914.713.414.914.614.213.715.314.714.512.813.413.612.010.713.513.59.29.310.011.911.88.510.711.211.08.910.710.89.67.210.9

us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Operating
Period End2021-05-312020-05-31
Value-15.6-15.4
Percentage of OperatingIncomeLoss-13.2-18.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.7-2.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment0.00.0

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

us-gaap:OperatingSegments, ayi:AcuityBrandsLightingAndLightingControls


Operating
Period End2021-05-312020-05-31
Value12698
Percentage of OperatingIncomeLoss107.1118.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.112.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ayi:AcuityBrandsLightingAndLightingControls14.913.3

us-gaap:OperatingSegments, ayi:IntelligentSpacesGroup


Operating
Period End2021-05-312020-05-31
Value7.2-0.2
Percentage of OperatingIncomeLoss6.1-0.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.8-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ayi:IntelligentSpacesGroup13.0-0.5

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-302018-05-312018-02-282017-11-30
Value208.46.2-12.0-2.03.8-7.46.3-6.2-5.74.3-8.9
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.31.10.8-1.5-0.20.5-0.80.7-0.7-0.60.5-1.1

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-302018-05-312018-02-282017-11-302017-05-312017-02-282016-11-302016-08-312016-05-31
Value-1.61.71.61.81.71.91.31.42.61.91.81.62.02.12.0-27.41.3
Percentage of OtherComprehensiveIncomeLossNetOfTax-7.720.225.8-15.0-85.050.0-17.622.2-41.9-33.341.9-18.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.20.20.20.20.20.20.10.20.30.20.20.20.20.30.2-3.00.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-302018-05-312018-02-282017-11-302017-05-312017-02-282016-11-302016-05-31
Value208.46.2-12.0-2.03.8-7.46.3-6.2-5.74.3-8.94.45.4-9.911
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.31.10.8-1.5-0.20.5-0.80.7-0.7-0.60.5-1.10.50.7-1.21.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment


Other
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-302018-05-312018-02-282017-11-302017-05-312017-02-282016-11-302016-08-312016-05-31
Value226.74.6-13.8-3.71.9-8.74.9-8.8-7.62.5-10.52.43.3-11.9-2.210.0
Percentage of OtherComprehensiveIncomeLossNetOfTax107.779.874.2115.0185.050.0117.677.8141.9133.358.1118.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.50.90.6-1.8-0.40.2-0.90.6-0.9-0.80.3-1.20.30.4-1.4-0.21.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


Other
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
Value-2.7-2.2-1.6-4.40.9-1.0-1.4-2.1-0.2-1.1-1.34.01.7-1.30.4-2.21.2-0.67.90.1-0.31.10.7-11.79.50.10.9-0.70.1-0.1-0.60.03.0-0.1-0.1-2.82.7-1.12.91.7-0.9-0.7-1.2-0.11.00.6-0.5
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.3-0.3-0.2-0.50.1-0.1-0.2-0.2-0.0-0.1-0.10.40.2-0.20.0-0.20.1-0.10.90.0-0.00.10.1-1.51.40.00.1-0.10.0-0.0-0.10.00.6-0.0-0.0-0.50.6-0.20.60.3-0.2-0.2-0.3-0.00.20.2-0.1

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
Value8997767928917768248349389478549321061944832842957891804851925851777736759683616647668603546574579541486481514487457474496458416425444407383391
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems

us-gaap:IntersegmentElimination


Revenue
Period End2021-05-312020-05-31
Value-5.7-3.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.6-0.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.6-0.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination100.0100.0

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

us-gaap:OperatingSegments, ayi:SalesChannelThroughCorporateAccountsNetwork, ayi:AcuityBrandsLightingAndLightingControls


Revenue
Period End2021-05-312020-05-31
Value4439
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.95.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.95.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ayi:SalesChannelThroughCorporateAccountsNetwork ayi:AcuityBrandsLightingAndLightingControls100.0100.0

us-gaap:OperatingSegments, ayi:SalesChannelThroughDirectSalesNetwork, ayi:AcuityBrandsLightingAndLightingControls


Revenue
Period End2021-05-312020-05-31
Value9669
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.78.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.78.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ayi:SalesChannelThroughDirectSalesNetwork ayi:AcuityBrandsLightingAndLightingControls100.0100.0

us-gaap:OperatingSegments, ayi:SalesChannelThroughIndependentSalesNetwork, ayi:AcuityBrandsLightingAndLightingControls


Revenue
Period End2021-05-312020-05-31
Value628549
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax69.870.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax69.870.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ayi:SalesChannelThroughIndependentSalesNetwork ayi:AcuityBrandsLightingAndLightingControls100.0100.0

us-gaap:OperatingSegments, ayi:SalesChannelThroughOther, ayi:AcuityBrandsLightingAndLightingControls


Revenue
Period End2021-05-312020-05-31
Value4535
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.04.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.04.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ayi:SalesChannelThroughOther ayi:AcuityBrandsLightingAndLightingControls100.0100.0

us-gaap:OperatingSegments, ayi:SalesChannelThroughRetail, ayi:AcuityBrandsLightingAndLightingControls


Revenue
Period End2021-05-312020-05-31
Value3648
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.06.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.06.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ayi:SalesChannelThroughRetail ayi:AcuityBrandsLightingAndLightingControls100.0100.0

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

us-gaap:OperatingSegments, ayi:AcuityBrandsLightingAndLightingControls


Revenue
Period End2021-05-312020-05-31
Value850741
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax94.595.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax94.595.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ayi:AcuityBrandsLightingAndLightingControls100.0100.0

us-gaap:OperatingSegments, ayi:IntelligentSpacesGroup


Revenue
Period End2021-05-312020-05-31
Value5537
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.24.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.24.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ayi:IntelligentSpacesGroup100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ContractWithCustomerSalesChannel

ayi:SalesChannelThroughCorporateAccountsNetwork


Revenue
Period End2021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-30
Value2624395433977552
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.43.05.16.64.010.28.85.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.43.05.16.64.010.28.85.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ayi:SalesChannelThroughCorporateAccountsNetwork100.0100.0100.0100.0100.0100.0100.0100.0

ayi:SalesChannelThroughDirectSalesNetwork


Revenue
Period End2021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-30
Value73768667738497978799
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.59.69.78.78.910.110.410.310.210.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.59.69.78.78.910.110.410.310.210.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ayi:SalesChannelThroughDirectSalesNetwork100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ayi:SalesChannelThroughIndependentSalesNetwork


Revenue
Period End2021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-30
Value592599643584596618645650571649
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax76.375.772.275.372.474.068.868.666.969.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax76.375.772.275.372.474.068.868.666.969.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ayi:SalesChannelThroughIndependentSalesNetwork100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ayi:SalesChannelThroughOther


Revenue
Period End2021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-30
Value4037374245444646
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.24.74.85.15.54.75.55.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.24.74.85.15.54.75.55.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ayi:SalesChannelThroughOther100.0100.0100.0100.0100.0100.0100.0100.0

ayi:SalesChannelThroughRetail


Revenue
Period End2021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-30
Value4355485653587385
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.56.96.26.96.46.28.69.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.56.96.26.96.46.28.69.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ayi:SalesChannelThroughRetail100.0100.0100.0100.0100.0100.0100.0100.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
Value8997767928917768248349389478549321061944832842957891804851925851777736759683616647668603546574579541486481514487457474496458416425444407383391
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Selling General And Administrative Expense

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:SellingGeneralAndAdministrativeExpense


Selling
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
Value268245246261241260265263263237250275273246231244246227231262247230206206196177176192170157159158163144140147142136140144139126130133124119118
Percentage of SellingGeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax29.831.631.129.331.131.731.828.127.827.826.825.929.029.627.525.527.728.327.228.329.029.628.027.228.728.827.228.828.328.727.827.430.329.629.228.629.329.829.629.130.430.430.730.030.631.130.3

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-31
Value35603360338834913442339633053172312129913015298828822750296128992730299929632948278326192506242923272218220621682049197219661903182917421731173616561597159515971591153715211503
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312013-08-31
Value15211427145113641346135113171253123611901264127212821114123512341195119412331288119511261071106910149669951004925910
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets42.742.542.839.139.139.839.939.539.639.841.942.644.540.541.742.643.839.841.643.742.943.042.744.043.643.645.146.345.147.8

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-31
Value35603360338834913442339633053172312129913015298828822750296128992730299929632948278326192506242923272218220621682049197219661903182917421731173616561597159515971591153715211503
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312009-08-312008-08-31
Value2039193219372127209520451987191818841801175017161600163517261665153518041730165915871493143413601313125112101163112410791039993922890866834819795765757779748722694672575
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets57.357.557.260.960.960.260.160.560.460.258.157.455.559.558.357.456.260.258.456.357.157.057.356.056.456.454.953.754.954.752.952.250.451.150.048.049.449.848.047.449.048.747.546.20.00.0

us-gaap:StockholdersEquity us-gaap:CumulativeEffectPeriodOfAdoption

srt:CumulativeEffectPeriodOfAdoptionAdjustment


Stockholders
Period End2020-08-312018-08-31
Value-0.2-13.0
Percentage of StockholdersEquity-0.0-0.8
Percentage of Assets-0.0-0.4
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment0.00.0

us-gaap:StockholdersEquity us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:StatementEquityComponents

srt:CumulativeEffectPeriodOfAdoptionAdjustment, us-gaap:RetainedEarnings


Stockholders
Period End2020-09-012020-08-312018-08-31
Value-0.2-0.2-13.0
Percentage of StockholdersEquity0.0-0.0-0.8
Percentage of Assets0.0-0.0-0.4
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment us-gaap:RetainedEarnings0.00.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Stockholders
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312016-08-312012-08-312011-08-312010-08-312009-08-312008-08-31
Value-77.5-75.9-77.6-79.2-80.6-82.4-84.1-86.0-55.6-56.9-58.3-60.9-76.8-78.7-69.4-71.0-85.6-91.7-67.8-45.1-52.7-42.0-25.9
Percentage of StockholdersEquity-3.8-3.9-4.0-3.7-3.8-4.0-4.2-4.5-2.9-3.2-3.3-3.5-4.8-4.8-4.0-4.3-5.6-5.5-8.1-6.0-7.6-6.2-4.5
Percentage of Assets-2.2-2.3-2.3-2.3-2.3-2.4-2.5-2.7-1.8-1.9-1.9-2.0-2.7-2.9-2.3-2.4-3.1-3.1-3.9-2.8-3.50.00.0
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312016-08-312015-08-312014-08-312013-08-312012-08-312011-08-312010-08-31
Value-97.4-118.1-126.5-132.7-161.6-149.6-147.6-151.4-122.1-114.7-121.0-114.8-121.1-115.4-108.6-99.7-139.5-139.4-110.4-71.9-62.6-84.7-53.8-71.3
Percentage of StockholdersEquity-4.8-6.1-6.5-6.2-7.7-7.3-7.4-7.9-6.5-6.4-6.9-6.7-7.6-7.1-6.3-6.0-9.1-8.4-8.1-6.2-6.3-10.2-7.1-10.3
Percentage of Assets-2.7-3.5-3.7-3.8-4.7-4.4-4.5-4.8-3.9-3.8-4.0-3.8-4.2-4.2-3.7-3.4-5.1-4.7-4.5-3.3-3.3-4.9-3.4-4.7
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment


Stockholders
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312016-08-312012-08-312011-08-312010-08-312009-08-312008-08-31
Value-19.9-42.2-48.9-53.5-81.0-67.2-63.5-65.4-66.5-57.8-62.7-53.9-44.3-36.7-39.2-28.7-53.9-47.7-16.9-8.7-18.6-15.43.1
Percentage of StockholdersEquity-1.0-2.2-2.5-2.5-3.9-3.3-3.2-3.4-3.5-3.2-3.6-3.1-2.8-2.2-2.3-1.7-3.5-2.9-2.0-1.1-2.7-2.30.5
Percentage of Assets-0.6-1.3-1.4-1.5-2.4-2.0-1.9-2.1-2.1-1.9-2.1-1.8-1.5-1.3-1.3-1.0-2.0-1.6-1.0-0.5-1.20.00.0
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312016-08-312015-08-312014-08-312013-08-312012-08-312011-08-312010-08-312009-08-312008-08-31
Value985977968963958950942930924917910906899892884881856797761735703680661647626
Percentage of StockholdersEquity48.350.650.045.345.746.547.448.549.150.952.052.856.254.651.252.951.658.665.474.084.389.995.396.3108.8
Percentage of Assets27.729.128.627.627.828.028.529.329.630.730.230.331.232.429.930.429.132.835.138.640.542.644.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312016-08-312015-08-312014-08-312013-08-312012-08-312011-08-312010-08-312009-08-312008-08-31
Value271726352577252324542399234722952204212120601999189618281725165913601093893740635541459404366
Percentage of StockholdersEquity133.2136.4133.1118.6117.1117.3118.1119.6117.0117.7117.7116.4118.5111.8100.099.782.080.476.874.576.271.566.160.163.8
Percentage of Assets76.378.476.172.371.370.671.072.470.670.968.366.965.866.558.357.246.245.041.238.936.633.930.50.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312016-08-312015-08-312014-08-312013-08-312012-08-312011-08-312010-08-312009-08-312008-08-31
Value-1566.1-1563.6-1483.3-1227.2-1156.0-1156.0-1156.0-1156.0-1123.1-1123.1-1099.4-1074.4-1074.4-970.3-776.0-776.1-418.6-420.2-420.2-420.2-420.2-411.0-355.7-322.3-395.5
Percentage of StockholdersEquity-76.8-80.9-76.6-57.7-55.2-56.5-58.2-60.2-59.6-62.3-62.8-62.6-67.1-59.3-45.0-46.6-25.2-30.9-36.1-42.3-50.4-54.3-51.2-47.9-68.7
Percentage of Assets-44.0-46.5-43.8-35.1-33.6-34.0-35.0-36.4-36.0-37.5-36.5-35.9-37.3-35.3-26.2-26.8-14.2-17.3-19.4-22.1-24.2-25.7-23.70.00.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-31
Value1538134413471439138013071206144113791232125112111105109313231245109413631356132211549971255143613431250122511861070990979913837783773779704642639630626581613626
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets43.240.039.841.240.138.536.545.444.241.241.540.538.439.844.743.040.145.545.844.941.538.150.159.157.756.455.654.752.250.249.848.045.845.044.744.942.540.240.139.539.437.940.341.7

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-302009-08-312008-08-31
Value593498507560520380266461333232214129942294283111894634514133372245607566526015835524674083983593012622672842281801721701601251521911941554818297
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets16.714.815.016.115.111.28.114.510.77.87.14.33.38.414.510.76.915.415.214.012.18.622.431.128.027.126.425.522.820.720.218.916.515.115.416.413.811.310.810.710.18.210.012.70.00.00.00.00.0

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Cash
Period End2020-08-312019-08-312018-08-312017-08-312016-08-31
Value560461129311413
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0
Percentage of Assets16.114.54.310.714.0
Percentage of Assets us-gaap:FairValueInputsLevel1 us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312017-08-312016-08-31
Value59349850756052038026646133323221412994311413
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets16.714.815.016.115.111.28.114.510.77.87.14.33.310.714.0

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-31
Value509448445500451506507561586520556637572500514573521500522572494458415411392355371373352308332318299282270263269257262262255243249255
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets14.313.313.114.313.114.915.417.718.817.418.521.319.918.217.419.819.116.717.619.417.717.516.616.916.916.016.917.217.215.716.916.716.416.215.615.216.316.116.516.416.015.916.417.0

Inventory Net

us-gaap:InventoryNet

us-gaap:InventoryNet


Inventory
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-31
Value370321316320355348352340390413420411406322339328342353334295288277242224256237214212213228208203201193193194168159162165178174173149
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets10.49.69.39.210.310.310.710.712.513.813.913.814.111.711.511.312.511.811.310.010.410.69.79.311.010.79.79.810.411.610.610.711.011.111.211.210.210.010.210.411.211.311.49.9

Inventory Finished Goods

us-gaap:InventoryFinishedGoods

us-gaap:InventoryFinishedGoods


Inventory
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312010-08-31
Value24120119619920418518618324025926125125118719318018418517414514914412711313412099971061119490938685848079787873
Percentage of InventoryFinishedGoods100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.86.05.85.75.95.55.75.87.78.78.78.48.76.86.56.26.86.25.94.95.45.55.14.75.85.44.54.55.25.74.84.85.15.05.04.94.95.04.94.94.9

Prepaid Expense And Other Assets Current

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PrepaidExpenseAndOtherAssetsCurrent


Prepaid
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312010-08-31
Value6676795853717979696760323241413241464841343737202135352721302519213229232230251513
Percentage of PrepaidExpenseAndOtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.92.32.31.71.52.12.42.52.22.32.01.11.11.51.41.11.51.51.61.41.31.41.50.80.91.61.61.31.01.51.31.01.21.81.71.41.31.91.61.00.9

Noncurrent Assets

us-gaap:NoncurrentAssets

us-gaap:NoncurrentAssets


Noncurrent
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-312012-08-312011-08-312010-08-312009-08-31
Value366297308304295204180177172173162172
Percentage of NoncurrentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets10.59.410.310.510.08.48.39.39.910.910.80.0

us-gaap:NoncurrentAssets us-gaap:StatementGeographical

us-gaap:DomesticCountry


Noncurrent
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-312012-08-312011-08-312010-08-312009-08-31
Value301248256252254179149146141140130140
Percentage of NoncurrentAssets82.383.783.183.186.087.582.782.582.481.280.481.3
Percentage of Assets8.67.88.68.78.67.46.97.78.28.88.70.0
Percentage of Assets us-gaap:DomesticCountry0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NonUs


Noncurrent
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-31
Value6448525141253130
Percentage of NoncurrentAssets17.716.316.916.914.012.517.317.5
Percentage of Assets1.91.51.71.81.41.11.41.6
Percentage of Assets us-gaap:NonUs0.00.00.00.00.00.00.00.0

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-31
Value830818818802792788774757751748732728721705696687675661658645637621553527529516513499492483476471469472480468480478474484494485476458
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets23.324.424.223.023.023.223.423.924.125.024.324.425.025.723.523.724.722.122.221.922.923.722.121.722.723.323.323.024.024.524.224.825.727.127.827.029.030.029.730.431.131.631.330.5

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

us-gaap:BuildingAndBuildingImprovements


Property
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-31
Value196194194192195193193190
Percentage of PropertyPlantAndEquipmentGross23.623.723.823.924.724.625.025.2
Percentage of Assets5.55.85.75.55.75.75.96.0
Percentage of Assets us-gaap:BuildingAndBuildingImprovements0.00.00.00.00.00.00.00.0

us-gaap:Land


Property
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-31
Value2222222222222222
Percentage of PropertyPlantAndEquipmentGross2.72.72.72.82.82.92.93.0
Percentage of Assets0.60.70.70.60.70.70.70.7
Percentage of Assets us-gaap:Land0.00.00.00.00.00.00.00.0

us-gaap:MachineryAndEquipment


Property
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-31
Value612602601588574571557544
Percentage of PropertyPlantAndEquipmentGross73.773.673.573.372.572.672.171.8
Percentage of Assets17.217.917.816.916.716.816.917.2
Percentage of Assets us-gaap:MachineryAndEquipment0.00.00.00.00.00.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-31
Value571556549532516508495480471464449441433423410400391383385377374364362352364357352347344336329323322327337329348345340341347340333320
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets16.016.616.215.215.015.015.015.115.115.514.914.815.015.413.913.814.312.813.012.813.513.914.514.515.616.116.016.016.817.116.717.017.618.819.519.021.021.621.421.421.822.221.921.3

Amortization Of Intangible Assets

us-gaap:AmortizationOfIntangibleAssets

us-gaap:AmortizationOfIntangibleAssets


Amortization
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-30
Value1010101010109.67.77.77.77.78.07.26.76.66.18.27.85.92.97.56.05.02.72.72.82.82.82.82.92.72.92.82.62.62.72.72.63.2
Percentage of AmortizationOfIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-31
Value259262268270275279278277280284283286288282286287284277273267262256191174164159160152148147147147147144143139132133133143147145143138
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.37.87.97.78.08.28.48.79.09.59.49.610.010.39.79.910.49.39.29.19.49.87.67.27.17.27.37.07.27.57.57.88.08.38.38.08.08.38.49.09.29.49.49.2

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-12-092015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-31
Value1096108410801080108610891115967964968966970970911896900887893941947889883319728565565565567569570570570568573554555554554557559559575571542515
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets30.832.331.930.931.632.133.730.530.932.432.132.533.733.230.331.132.529.831.832.232.033.70.029.023.324.325.525.726.327.828.929.029.831.331.832.131.933.434.935.135.036.237.235.634.3

us-gaap:Goodwill us-gaap:BusinessAcquisition

ayi:Fiscal2020Acquisitions


Goodwillus-gaap:
Period End2020-11-302020-08-312020-05-312020-02-292019-11-30
Value107107127125147
Percentage of Goodwill10.010.011.711.513.2
Percentage of Assets3.23.13.73.74.5
Percentage of Assets ayi:Fiscal2020Acquisitions0.00.00.00.00.0

Indefinite Lived Intangible Assets Excluding Goodwill

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill

us-gaap:TradeNames


Indefinite
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-31
Value17414114413613599100100
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.04.54.84.74.64.14.65.3
Percentage of Assets us-gaap:TradeNames0.00.00.00.00.00.00.00.0

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


Intangible
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-31
Value580587596605612628621466473482489498504447439448448446372381448452303223226222227231235238241245242228228230233234233234212212197199
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets16.317.517.617.417.818.518.814.715.216.116.216.717.516.314.915.516.414.912.612.916.117.312.19.29.710.010.310.711.512.112.312.913.213.113.213.314.114.714.614.713.413.813.013.3

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-30
Value60636563565960
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.71.91.91.81.61.71.8

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312018-08-312017-08-312011-05-312011-02-282010-11-302010-08-31
Value231627292929211721181325222120
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.50.80.80.80.90.60.60.70.60.51.61.51.41.3

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-31
Value380321317326331333321338378351389451464341364395359365390401353317329311301280277287256244244249239213204232202189198203188175184195
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets10.79.69.49.49.69.89.710.712.111.712.915.116.112.412.313.613.212.213.213.612.712.113.112.813.012.712.613.312.512.412.413.113.112.311.813.412.211.912.512.811.811.412.113.0

Contract With Customer Liability Current

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:ContractWithCustomerLiabilityCurrent


Contract
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-09-01
Value7000000.07300000.05200000.05400000.06600000.07000000.07400000.04700000.08500000.04400000.04400000.04800000.0
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.20.20.20.20.20.20.10.30.10.10.0

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-31
Value671576583617575572572596631584652682672509594600544546609672584513512520486434453470408366395386358312321364331292317331313287303321
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets18.917.217.217.716.716.817.318.820.219.521.622.823.318.520.120.719.918.220.622.821.019.620.521.420.919.620.621.719.918.620.120.319.617.918.621.020.018.319.920.719.718.719.921.4

Long Term Debt Current

us-gaap:LongTermDebtCurrent

us-gaap:LongTermDebtCurrent


Long
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-08-312011-08-312010-08-31
Value4.04.04.32417159.29.19.17.00.40.41.60.40.40.40.40.30.30.20.20.20.00.00.0
Percentage of LongTermDebtCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0
Percentage of Assets0.10.10.10.70.50.50.30.30.30.20.00.00.10.00.00.00.00.00.00.00.00.00.00.00.0

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-30
Value16171817161616
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.50.50.50.50.50.5

Other Accrued Liabilities Current

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:OtherAccruedLiabilitiesCurrent


Other
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-31
Value16514216816415415117417517616522216414712919816315815619217615214514913012410713312711691123107927993868669948187798873
Percentage of OtherAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.74.25.04.74.54.45.35.55.75.57.45.55.14.76.75.65.85.26.56.05.55.56.05.45.44.96.15.95.74.66.35.65.04.65.45.05.24.35.95.15.55.15.84.9

Long Term Debt

us-gaap:LongTermDebt

us-gaap:LongTermDebt


Long
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312010-08-31
Value401356356356355352353353353353353353353353353353353353353353
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.511.211.912.312.014.516.317.317.918.018.619.320.320.420.421.322.122.222.123.5

us-gaap:LongTermDebt dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

ayi:AcuityBrandsLightingInc, ayi:A2150SeniorUnsecuredNotesDueDecember2030, us-gaap:UnsecuredDebt


Long
Period End2021-05-312021-02-282020-11-30
Value494494493
Percentage of LongTermDebt0.00.00.0
Percentage of Assets13.914.714.6
Percentage of Assets ayi:AcuityBrandsLightingInc ayi:A2150SeniorUnsecuredNotesDueDecember2030 us-gaap:UnsecuredDebt0.00.00.0

us-gaap:LongTermDebt us-gaap:DebtInstrument, us-gaap:LongtermDebtType

ayi:A2016FixedrateBankLoans, us-gaap:BankLoanObligations


Long
Period End2020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312015-08-31
Value2.02.12.12.22.32.72.83.03.13.33.43.63.73.83.73.23.22.50.0
Percentage of LongTermDebt0.00.50.00.00.00.80.00.00.00.90.00.00.01.10.00.00.00.70.0
Percentage of Assets0.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.0
Percentage of Assets ayi:A2016FixedrateBankLoans us-gaap:BankLoanObligations0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ayi:UnsecuredDelayedDrawTermLoan, us-gaap:UnsecuredDebt


Long
Period End2020-08-312020-05-312020-02-292019-08-31
Value3953974000.0
Percentage of LongTermDebt98.50.00.00.0
Percentage of Assets11.311.511.80.0
Percentage of Assets ayi:UnsecuredDelayedDrawTermLoan us-gaap:UnsecuredDebt0.00.00.00.0

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent

us-gaap:LongTermDebtNoncurrent


Long
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-31
Value494494495376385390347347347349356356356356356356356355355355354353352352353353353353353353353353353353353353353353353353353353353353
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets13.914.714.610.811.211.510.511.011.111.711.811.912.413.012.012.313.011.912.012.012.713.514.114.515.215.916.016.317.317.918.018.619.320.320.420.421.322.122.222.122.223.023.223.5

us-gaap:LongTermDebtNoncurrent us-gaap:DebtInstrument, us-gaap:LongtermDebtType

ayi:UnsecuredDelayedDrawTermLoan, us-gaap:UnsecuredDebt


Long
Period End2020-08-312020-05-312020-02-29
Value375380385
Percentage of LongTermDebtNoncurrent99.598.598.5
Percentage of Assets10.711.011.3
Percentage of Assets ayi:UnsecuredDelayedDrawTermLoan us-gaap:UnsecuredDebt0.00.00.0

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxLiabilitiesNet


Deferred
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312016-08-31
Value1039595941191171229289898892877610810874
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.92.82.82.73.53.53.72.92.93.02.93.13.02.83.73.72.5

Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent


Pension
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-31
Value67686991949698996162626486949596116116117119797981835860626548505254909193905257566071727071
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.92.02.02.62.82.93.03.12.02.12.12.23.03.43.23.34.33.94.04.12.93.03.33.52.52.72.83.02.42.62.72.94.95.35.45.23.23.63.63.84.54.74.64.7

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

country:US, us-gaap:PensionPlansDefinedBenefit


Pension
Period End2020-08-312019-08-312018-08-312017-08-312016-08-31
Value7785507792
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent84.686.277.680.077.5
Percentage of Assets2.22.71.72.73.2
Percentage of Assets country:US us-gaap:PensionPlansDefinedBenefit0.00.00.00.00.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Pension
Period End2020-08-312019-08-312018-08-312017-08-312016-08-31
Value1413141927
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent15.413.822.420.022.5
Percentage of Assets0.40.40.50.70.9
Percentage of Assets us-gaap:ForeignPlan us-gaap:PensionPlansDefinedBenefit0.00.00.00.00.0

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312011-08-312011-05-312011-02-282010-11-302010-08-31
Value1301341432.61171181205.29894967.36969716.26364686.85357599.2505260505058611.56155582.7541.651535545
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.74.04.20.13.43.53.60.23.23.23.20.22.42.52.40.22.32.22.30.21.92.22.40.42.22.42.72.32.43.03.10.13.33.23.40.23.30.13.23.43.63.0

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-30
Value48525856464849
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.41.61.71.61.31.41.5

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-08-31
Value14
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0
Percentage of Assets0.4

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-08-31
Value12
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0
Percentage of Assets0.4

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-08-31
Value9700000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0
Percentage of Assets0.3

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-08-31
Value9000000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.3

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-08-31
Value14
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets0.4

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2020-08-312020-05-312020-02-292019-11-30
Value74626466
Percentage of OperatingLeaseLiability100.0100.0100.0100.0
Percentage of Assets2.11.81.92.0

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-08-31
Value78
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0
Percentage of Assets2.3

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2020-08-31
Value4800000.0
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0
Percentage of Assets0.1

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312009-08-312008-08-31
Value2039193219372127209520451987191818841801175017161600163517261665153518041730165915871493143413601313125112101163112410791039993922890866834819795765757779748722694672575
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets57.357.557.260.960.960.260.160.560.460.258.157.455.559.558.357.456.260.258.456.357.157.057.356.056.456.454.953.754.954.752.952.250.451.150.048.049.449.848.047.449.048.747.546.20.00.0

us-gaap:StockholdersEquity us-gaap:CumulativeEffectPeriodOfAdoption

srt:CumulativeEffectPeriodOfAdoptionAdjustment


Stockholders
Period End2020-08-312018-08-31
Value-0.2-13.0
Percentage of StockholdersEquity-0.0-0.8
Percentage of Assets-0.0-0.4
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment0.00.0

us-gaap:StockholdersEquity us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:StatementEquityComponents

srt:CumulativeEffectPeriodOfAdoptionAdjustment, us-gaap:RetainedEarnings


Stockholders
Period End2020-09-012020-08-312018-08-31
Value-0.2-0.2-13.0
Percentage of StockholdersEquity0.0-0.0-0.8
Percentage of Assets0.0-0.0-0.4
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment us-gaap:RetainedEarnings0.00.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Stockholders
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312016-08-312012-08-312011-08-312010-08-312009-08-312008-08-31
Value-77.5-75.9-77.6-79.2-80.6-82.4-84.1-86.0-55.6-56.9-58.3-60.9-76.8-78.7-69.4-71.0-85.6-91.7-67.8-45.1-52.7-42.0-25.9
Percentage of StockholdersEquity-3.8-3.9-4.0-3.7-3.8-4.0-4.2-4.5-2.9-3.2-3.3-3.5-4.8-4.8-4.0-4.3-5.6-5.5-8.1-6.0-7.6-6.2-4.5
Percentage of Assets-2.2-2.3-2.3-2.3-2.3-2.4-2.5-2.7-1.8-1.9-1.9-2.0-2.7-2.9-2.3-2.4-3.1-3.1-3.9-2.8-3.50.00.0
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312016-08-312015-08-312014-08-312013-08-312012-08-312011-08-312010-08-31
Value-97.4-118.1-126.5-132.7-161.6-149.6-147.6-151.4-122.1-114.7-121.0-114.8-121.1-115.4-108.6-99.7-139.5-139.4-110.4-71.9-62.6-84.7-53.8-71.3
Percentage of StockholdersEquity-4.8-6.1-6.5-6.2-7.7-7.3-7.4-7.9-6.5-6.4-6.9-6.7-7.6-7.1-6.3-6.0-9.1-8.4-8.1-6.2-6.3-10.2-7.1-10.3
Percentage of Assets-2.7-3.5-3.7-3.8-4.7-4.4-4.5-4.8-3.9-3.8-4.0-3.8-4.2-4.2-3.7-3.4-5.1-4.7-4.5-3.3-3.3-4.9-3.4-4.7
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment


Stockholders
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312016-08-312012-08-312011-08-312010-08-312009-08-312008-08-31
Value-19.9-42.2-48.9-53.5-81.0-67.2-63.5-65.4-66.5-57.8-62.7-53.9-44.3-36.7-39.2-28.7-53.9-47.7-16.9-8.7-18.6-15.43.1
Percentage of StockholdersEquity-1.0-2.2-2.5-2.5-3.9-3.3-3.2-3.4-3.5-3.2-3.6-3.1-2.8-2.2-2.3-1.7-3.5-2.9-2.0-1.1-2.7-2.30.5
Percentage of Assets-0.6-1.3-1.4-1.5-2.4-2.0-1.9-2.1-2.1-1.9-2.1-1.8-1.5-1.3-1.3-1.0-2.0-1.6-1.0-0.5-1.20.00.0
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312016-08-312015-08-312014-08-312013-08-312012-08-312011-08-312010-08-312009-08-312008-08-31
Value985977968963958950942930924917910906899892884881856797761735703680661647626
Percentage of StockholdersEquity48.350.650.045.345.746.547.448.549.150.952.052.856.254.651.252.951.658.665.474.084.389.995.396.3108.8
Percentage of Assets27.729.128.627.627.828.028.529.329.630.730.230.331.232.429.930.429.132.835.138.640.542.644.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312016-08-312015-08-312014-08-312013-08-312012-08-312011-08-312010-08-312009-08-312008-08-31
Value271726352577252324542399234722952204212120601999189618281725165913601093893740635541459404366
Percentage of StockholdersEquity133.2136.4133.1118.6117.1117.3118.1119.6117.0117.7117.7116.4118.5111.8100.099.782.080.476.874.576.271.566.160.163.8
Percentage of Assets76.378.476.172.371.370.671.072.470.670.968.366.965.866.558.357.246.245.041.238.936.633.930.50.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312016-08-312015-08-312014-08-312013-08-312012-08-312011-08-312010-08-312009-08-312008-08-31
Value-1566.1-1563.6-1483.3-1227.2-1156.0-1156.0-1156.0-1156.0-1123.1-1123.1-1099.4-1074.4-1074.4-970.3-776.0-776.1-418.6-420.2-420.2-420.2-420.2-411.0-355.7-322.3-395.5
Percentage of StockholdersEquity-76.8-80.9-76.6-57.7-55.2-56.5-58.2-60.2-59.6-62.3-62.8-62.6-67.1-59.3-45.0-46.6-25.2-30.9-36.1-42.3-50.4-54.3-51.2-47.9-68.7
Percentage of Assets-44.0-46.5-43.8-35.1-33.6-34.0-35.0-36.4-36.0-37.5-36.5-35.9-37.3-35.3-26.2-26.8-14.2-17.3-19.4-22.1-24.2-25.7-23.70.00.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


Additional
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-31
Value985977968963958950942930924917910906899892884881875868860856833818812797783779770761758753739735725720715703697694682680676670666661
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets27.729.128.627.627.828.028.529.329.630.730.230.331.232.429.930.432.129.029.029.130.031.332.432.833.735.134.935.137.038.237.638.639.741.341.340.542.143.542.842.642.543.643.844.0

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-31
Value2717263525772523245423992347229522042121206019991896182817251659157414981436136012831215115510931038979939893844806779740701675655635607579565541512491477459
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets76.378.476.172.371.370.671.072.470.670.968.366.965.866.558.357.257.750.048.546.246.146.446.145.044.644.242.641.241.240.939.638.938.338.737.936.636.736.335.533.932.231.931.430.5

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-31
Value-97400000.0-118100000.0-126500000.0-132700000.0-161600000.0-149600000.0-147600000.0-151400000.0-122100000.0-114700000.0-121000000.0-114800000.0-121100000.0-115400000.0-108600000.0-99700000.0-139500000.0-143900000.0-149300000.0-139400000.0-109800000.0-121100000.0-113200000.0-110400000.0-88800000.0-88100000.0-79200000.0-71900000.0-57900000.0-60400000.0-59700000.0-62600000.0-84400000.0-85000000.0-85500000.0-84700000.0-66800000.0-59000000.0-62900000.0-53800000.0-57400000.0-61500000.0-66800000.0-71300000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-2.7-3.5-3.7-3.8-4.7-4.4-4.5-4.8-3.9-3.8-4.0-3.8-4.2-4.2-3.7-3.4-5.1-4.8-5.0-4.7-3.9-4.6-4.5-4.5-3.8-4.0-3.6-3.3-2.8-3.1-3.0-3.3-4.6-4.9-4.9-4.9-4.0-3.7-3.9-3.4-3.6-4.0-4.4-4.7

Treasury Stock Value

us-gaap:TreasuryStockValue

us-gaap:TreasuryStockValue


Treasury
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-31
Value1566156314831227115611561156115611231123109910741074970776776776418418418420420420420420420420420420420420420420420420420420420420411352352355355
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets44.046.543.835.133.634.035.036.436.037.536.535.937.335.326.226.828.414.014.114.215.116.016.817.318.118.919.019.420.521.321.422.123.024.124.324.225.426.326.325.722.223.023.423.7

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
Value103881231261638512918212356131521223813913610732381011246851130822846104711443646814-14.569659.9277952235.363496.441
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.511.415.614.221.110.315.519.513.16.614.14.913.04.616.614.312.14.14.511.014.68.86.917.212.14.77.215.611.82.67.611.112.62.9-3.013.513.42.25.816.011.55.61.214.312.21.710.5

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
Value-7.5-9.8-14.1-16.8-13.5-14.4-315.1-16.1-14.9-10.7-11.3-10.0-148.4-37.0-10.3-12.1-19.3-16.3-1.1-31.5-17.9-395.1-260.2-26.8-18.6-8.5-18.5-10.4-8.3-8.0-7.6-9.0-24.4-13.9-11.2-12.5-9.4-5.2-8.0-6.0-14.2-49.5-42.8-28.6-6.2-5.2-4.3
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.8-1.3-1.8-1.9-1.7-1.7-37.8-1.7-1.6-1.3-1.2-0.9-15.7-4.4-1.2-1.3-2.2-2.0-0.1-3.4-2.1-50.8-35.3-3.5-2.7-1.4-2.9-1.6-1.4-1.5-1.3-1.6-4.5-2.9-2.3-2.4-1.9-1.1-1.7-1.2-3.1-11.9-10.1-6.4-1.5-1.4-1.1

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
Value-6.7-89.5-164.1-77.1-8.144-9.5-39.2-5.6-29.3-34.1-7.4-108.6-199.9-10.8-5.6-363.3-5.12.65.14.1-4.0143.4-12.4-0.25.3-8.2-4.74.42.21.3-4.0-4.38.1-3.8-5.23.1-12.8-62.9-3.6-3.0-2.3-38.8-2.5107-7.1
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.7-11.5-20.7-8.7-1.05.4-1.1-4.2-0.6-3.4-3.7-0.7-11.5-24.0-1.3-0.6-40.7-0.60.30.60.5-0.51.90.4-1.8-0.00.8-1.2-0.80.80.40.2-0.7-0.91.7-0.7-1.10.7-2.7-12.7-0.8-0.7-0.5-8.7-0.628.1-1.8

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-31
Value94-8.3-53.740140114-194.4127101178534
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.5-1.1-6.84.518.013.8-23.313.610.72.09.23.3

Depreciation Depletion And Amortization

us-gaap:DepreciationDepletionAndAmortization

us-gaap:DepreciationDepletionAndAmortization


Depreciation
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-30
Value2525252525252422222221212019191820191713181614111111111110101010109.910.010109.41010109.69.6
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationDepletionAndAmortization us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ayi:AcuityBrandsLightingAndLightingControls


Depreciation
Period End2021-05-312020-05-31
Value2120
Percentage of DepreciationDepletionAndAmortization84.081.6

us-gaap:OperatingSegments, ayi:IntelligentSpacesGroup


Depreciation
Period End2021-05-312020-05-31
Value3.74.4
Percentage of DepreciationDepletionAndAmortization14.817.3

Increase Decrease In Accounts Payable

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsPayable


Increase
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
Value574.9-9.2-4.9-2.410-22.7-40.031-41.1-61.5-10.4116-21.5-32.533-5.5-25.0-7.24635-27.0106.1214.5-8.83112-0.1-5.49.9249.2-28.42914-9.7-4.21512-10.8-11.8307.4-5.61.1
Percentage of IncreaseDecreaseInAccountsPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


Increase
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
Value571.8-56.345-53.0-0.6-66.3-25.667-37.6-102.06966-15.6-57.64719-22.1-47.67834-5.9-12.42037-12.60.72143-23.1141916126.6-7.513-5.81.77.311-10.4-11.519126.3-8.6
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Inventories

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInInventories


Increase
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
Value474.5-4.1-37.07.3-3.4-4.9-50.3-21.8-7.99.28.073-17.911-14.7-12.419409.810-10.113-31.619242.9-1.4-14.8205.01.85.9-0.7-0.52410-3.7-2.9-12.33.2-3.4175.5-4.23.14.2
Percentage of IncreaseDecreaseInInventories100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Other Operating Capital Net

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet


Increase
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
Value-26.9183.34.10.11.1-14.3-13.1-4.4-0.1-7.98.42.40.9-10.62.5-1.40.5-1.1-1.73.9-2.83.23.13.44.6-3.54.410.03.12.53.13.44.20.9-0.15.33.8-6.44.53.53.5-8.54.14.90.8-5.8
Percentage of IncreaseDecreaseInOtherOperatingCapitalNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
Value103881231261638512918212356131521223813913610732381011246851130822846104711443646814-14.569659.9277952235.363496.441
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.511.415.614.221.110.315.519.513.16.614.14.913.04.616.614.312.14.14.511.014.68.86.917.212.14.77.215.611.82.67.611.112.62.9-3.013.513.42.25.816.011.55.61.214.312.21.710.5

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
Value85625973605757968866791087396719082678182746568606446515443324444312426333319293427192427217.823
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.58.17.58.37.86.96.810.29.37.88.510.27.711.68.59.59.28.49.69.08.78.49.37.99.47.57.98.27.36.07.77.75.95.15.46.56.94.36.36.95.94.85.76.15.22.05.9

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-30
Value856259605757886679108739671
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.58.17.57.86.96.89.37.88.510.27.711.68.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-31
Value7.17.57.75.77.88.0166.37.67.57.87.97.68.38.57.98.18.17.97.86.96.66.45.44.44.34.14.54.54.24.53.74.24.34.33.53.23.40.23.23.33.0-1.13.12.9
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
Value-7.5-9.8-14.1-16.8-13.5-14.4-315.1-16.1-14.9-10.7-11.3-10.0-148.4-37.0-10.3-12.1-19.3-16.3-1.1-31.5-17.9-395.1-260.2-26.8-18.6-8.5-18.5-10.4-8.3-8.0-7.6-9.0-24.4-13.9-11.2-12.5-9.4-5.2-8.0-6.0-14.2-49.5-42.8-28.6-6.2-5.2-4.3
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.8-1.3-1.8-1.9-1.7-1.7-37.8-1.7-1.6-1.3-1.2-0.9-15.7-4.4-1.2-1.3-2.2-2.0-0.1-3.4-2.1-50.8-35.3-3.5-2.7-1.4-2.9-1.6-1.4-1.5-1.3-1.6-4.5-2.9-2.3-2.4-1.9-1.1-1.7-1.2-3.1-11.9-10.1-6.4-1.5-1.4-1.1

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
Value9.49.811161313111314101411111010121916192118202314158.518108.38.08.59.29.51011129.45.24.25.95.65.16.76.06.45.24.3
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
Value-6.7-89.5-164.1-77.1-8.144-9.5-39.2-5.6-29.3-34.1-7.4-108.6-199.9-10.8-5.6-363.3-5.12.65.14.1-4.0143.4-12.4-0.25.3-8.2-4.74.42.21.3-4.0-4.38.1-3.8-5.23.1-12.8-62.9-3.6-3.0-2.3-38.8-2.5107-7.1
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.7-11.5-20.7-8.7-1.05.4-1.1-4.2-0.6-3.4-3.7-0.7-11.5-24.0-1.3-0.6-40.7-0.60.30.60.5-0.51.90.4-1.8-0.00.8-1.2-0.80.80.40.2-0.7-0.91.7-0.7-1.10.7-2.7-12.7-0.8-0.7-0.5-8.7-0.628.1-1.8

Proceeds From Issuance Of Long Term Debt

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:ProceedsFromIssuanceOfLongTermDebt


Proceeds
Period End2021-05-312021-02-282020-11-302020-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-31
Value0.00.04930.00.00.0-0.10.20.00.90.80.61.10.00.00.0
Percentage of ProceedsFromIssuanceOfLongTermDebt0.00.0100.00.00.00.0100.0100.00.0100.0100.0100.0100.00.00.00.0

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt


Repayments
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-02-282016-11-30
Value0.02.0395-2.52.73500.40.10.10.10.10.10.10.10.10.00.0
Percentage of RepaymentsOfLongTermDebt0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

us-gaap:RepaymentsOfLongTermDebt us-gaap:DebtInstrument, us-gaap:LongtermDebtType

ayi:A2016FixedrateBankLoans, us-gaap:BankLoanObligations


Repayments
Period End2021-05-31
Value0.0
Percentage of RepaymentsOfLongTermDebt0.0

ayi:UnsecuredDelayedDrawTermLoan, us-gaap:UnsecuredDebt


Repayments
Period End2020-11-30
Value395
Percentage of RepaymentsOfLongTermDebt100.0

Payments Of Dividends Common Stock

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsOfDividendsCommonStock


Payments
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
Value4.64.75.05.25.25.25.25.25.15.35.25.25.35.45.55.55.75.75.85.85.75.75.75.75.75.75.65.65.75.65.65.65.75.65.55.55.55.55.55.75.75.65.65.65.75.75.6
Percentage of PaymentsOfDividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Dividends

us-gaap:Dividends

us-gaap:Dividends


Dividends
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-302018-05-312018-02-282017-11-30
Value4.64.75.05.25.25.25.15.35.25.35.45.5
Percentage of Dividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Dividends us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Dividendsus-gaap:
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-302018-05-312018-02-282017-11-30
Value4.64.75.05.25.25.25.15.35.25.35.45.5
Percentage of Dividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock


Payments
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-30
Value2.683255690.00.00.0320.023250.01041940.00.03570.00.40.00.00.00.00.00.00.00.00.00.00.09.2580.00.02.9
Percentage of PaymentsForRepurchaseOfCommonStock100.0100.0100.0100.00.00.00.0100.00.0100.0100.00.0100.0100.00.00.0100.00.0100.00.00.00.00.00.00.00.00.00.00.00.0100.0100.00.00.0100.0

Debt Instrument Interest Rate Stated Percentage

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

us-gaap:DebtInstrumentInterestRateStatedPercentage

srt:Maximum, ayi:A2016FixedrateBankLoans, us-gaap:BankLoanObligations


Debt
Period End2020-08-312019-08-31
Value2.00.02
Percentage of DebtInstrumentInterestRateStatedPercentage100.0100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations srt:Maximum ayi:A2016FixedrateBankLoans us-gaap:BankLoanObligations0.00.0

srt:Minimum, ayi:A2016FixedrateBankLoans, us-gaap:BankLoanObligations


Debt
Period End2020-08-312019-08-31
Value0.80.008
Percentage of DebtInstrumentInterestRateStatedPercentage40.040.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations srt:Minimum ayi:A2016FixedrateBankLoans us-gaap:BankLoanObligations0.00.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber


Share
Period End2020-11-302020-05-312020-02-29
Value1192000.0917000.0917000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber us-gaap:AwardType, us-gaap:PlanName

us-gaap:EmployeeStockOption, ayi:AmendedandRestatedAcuityBrandInc.2012OmnibusStockCompensationIncentivePlan


Share
Period End2020-11-302020-08-312020-05-312020-02-292019-08-312018-08-312017-08-312016-08-31
Value1200000.0915000.0900000.0900000.0420000.0300000.0300000.0300000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber100.70.098.198.10.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber us-gaap:AwardType, us-gaap:PlanName, us-gaap:Vesting

us-gaap:EmployeeStockOption, ayi:AmendedandRestatedAcuityBrandInc.2012OmnibusStockCompensationIncentivePlan, us-gaap:ShareBasedCompensationAwardTrancheOne


Share
Period End2020-08-31
Value815000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber0.0

us-gaap:EmployeeStockOption, ayi:AmendedandRestatedAcuityBrandInc.2012OmnibusStockCompensationIncentivePlan, us-gaap:ShareBasedCompensationAwardTrancheTwo


Share
Period End2020-08-31
Value100000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber0.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice us-gaap:AwardType, us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:EmployeeStockOption, ayi:AmendedandRestatedAcuityBrandInc.2012OmnibusStockCompensationIncentivePlan


Share
Period End2020-11-302020-08-312020-05-312020-02-292019-08-312018-08-312017-08-312016-08-31
Value127.56133.19133.18133.18146.7154.69156.43129.85
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-312012-08-312011-08-312010-08-31
Value929089104691181131121009469
Percentage of DeferredTaxLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-312012-08-312011-08-312010-08-312009-08-31
Value17164.46.05.24.53.05.07.06.86.77.2
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-31
Value6.54.63.61416151312
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetImpairmentCharges

us-gaap:AssetImpairmentCharges


Asset
Period End2021-05-312021-02-282020-11-302020-08-312014-08-312013-08-312013-05-312012-08-312012-05-312011-08-312011-05-312010-08-31
Value004000000.07400000.0100000.00300000.0200000.00200000.0100000.01700000.0
Percentage of AssetImpairmentCharges0.00.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:ContractWithCustomerLiabilityRevenueRecognized


Contract
Period End2021-05-312021-02-282020-11-30
Value500000.01500000.02800000.0
Percentage of ContractWithCustomerLiabilityRevenueRecognized100.0100.0100.0

us-gaap:DeferredIncomeTaxesAndTaxCredits

us-gaap:DeferredIncomeTaxesAndTaxCredits


Deferred
Period End2020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-30
Value-7.00.4-0.50.49.1-0.20.5-0.1-6.20.0-31.9-0.1-4.9-0.1-2.70.0-8.20.3-0.30.02.40.2-0.20.4-0.9-0.40.30.84.50.30.61.17.01.10.3-2.211-0.50.1-1.0
Percentage of DeferredIncomeTaxesAndTaxCredits100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanActuarialGainLoss us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanActuarialGainLoss

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-302018-05-312018-02-282017-11-302017-05-31
Value-1.4-1.3-1.4-1.4-1.4-1.4-1.0-1.0-1.1-1.7-1.7-1.7-2.2
Percentage of DefinedBenefitPlanActuarialGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-302018-05-312018-02-282017-11-302017-05-31
Value800000.0700000.0700000.01000000.01000000.01000000.0800000.0700000.0800000.0800000.0800000.0800000.0800000.0
Percentage of DefinedBenefitPlanAmortizationOfPriorServiceCostCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-302018-05-312018-02-282017-11-302017-05-31
Value3.43.33.33.23.13.13.13.23.13.13.13.12.8
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanInterestCost us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanInterestCost

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-302018-05-312018-02-282017-11-302017-05-31
Value1600000.01500000.01600000.01800000.01900000.01800000.02200000.02300000.02200000.02200000.02200000.02200000.02000000.0
Percentage of DefinedBenefitPlanInterestCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-302018-05-312018-02-282017-11-302017-05-31
Value1600000.01500000.01600000.02200000.02300000.02300000.01700000.01600000.02200000.02300000.02300000.02300000.03100000.0
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanServiceCost us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanServiceCost

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-302018-05-312018-02-282017-11-302017-05-31
Value1200000.01300000.01200000.01200000.01100000.01200000.0800000.0800000.0800000.0700000.0700000.0700000.0900000.0
Percentage of DefinedBenefitPlanServiceCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Effect
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-31
Value5400000.02300000.0600000.07500000.0-2000000.0-1100000.0600000.0-100000.0-1500000.0700000.0-700000.0-300000.0
Percentage of EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnSaleOfPropertyPlantEquipment

us-gaap:GainLossOnSaleOfPropertyPlantEquipment


Gain
Period End2020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-31
Value-100000.0-100000.00-100000.0-300000.0-200000.00-400000.0-500000.000-100000.00-200000.00-100000.0-200000.0001100000.0700000.0-1400000.000-200000.0100000.02400000.000-300000.0-100000.00-100000.0-300000.00-100000.00-400000.00
Percentage of GainLossOnSaleOfPropertyPlantEquipment100.0100.00.0100.0100.0100.00.0100.0100.00.00.0100.00.0100.00.0100.0100.00.00.0100.0100.0100.00.00.0100.0100.0100.00.00.0100.0100.00.0100.0100.00.0100.00.0100.00.0

us-gaap:GoodwillForeignCurrencyTranslationGainLoss

us-gaap:GoodwillForeignCurrencyTranslationGainLoss


Goodwill
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-30
Value8.93.60.613-5.5-2.00.41.2-4.21.6-3.7-1.2-3.72.0-4.4
Percentage of GoodwillForeignCurrencyTranslationGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GoodwillPurchaseAccountingAdjustments

us-gaap:GoodwillPurchaseAccountingAdjustments


Goodwill
Period End2020-08-312020-05-312019-08-312019-05-312017-08-312017-05-31
Value-19.92.30.0-0.2-113.06.0
Percentage of GoodwillPurchaseAccountingAdjustments100.0100.00.0100.0100.0100.0

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets


Increase
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-282009-11-30
Value-7.0-12.7200.3-17.20.73.3101.87.014-0.1-9.8-0.19.3-9.5-5.4-1.8101.5-2.4-2.2131.3-10.90.18.86.5-9.54.94.7-2.0-5.70.55.30.1-6.12.75.5-0.1-6.30.35.4-4.5-9.67.25.1
Percentage of IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestRevenueExpenseNet

us-gaap:InterestRevenueExpenseNet


Interest
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-30
Value-6200000.0-6600000.0-4900000.0-3900000.0-5400000.0-5700000.0-8300000.0-7700000.0-8300000.0-8600000.0-8700000.0-9000000.0-8400000.0-8000000.0-8100000.0-8200000.0-8100000.0-8000000.0-8200000.0-8000000.0-8100000.0-8200000.0-7900000.0-7700000.0-7900000.0-8000000.0-7900000.0-8000000.0-8100000.0-8000000.0-8000000.0-7900000.0-7800000.0-7800000.0-7700000.0-7600000.0-7700000.0-7700000.0-7700000.0-7400000.0-7500000.0-7500000.0-7500000.0
Percentage of InterestRevenueExpenseNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeInterest

us-gaap:InvestmentIncomeInterest


Investment
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-30
Value200000.0300000.0200000.0600000.0700000.01100000.0700000.01300000.0800000.0500000.0500000.0200000.0500000.0700000.0600000.0300000.0400000.0500000.0400000.0400000.0200000.0100000.0400000.0400000.0300000.0200000.0200000.0200000.0100000.0100000.0100000.0100000.0200000.0200000.0200000.0200000.0100000.0100000.0100000.0100000.0100000.0100000.0100000.0
Percentage of InvestmentIncomeInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LeaseCost

us-gaap:LeaseCost


Lease
Period End2020-08-312020-05-312020-02-29
Value5.65.95.7
Percentage of LeaseCost100.0100.0100.0

us-gaap:OciBeforeReclassificationsNetOfTaxAttributableToParent us-gaap:StatementEquityComponents

us-gaap:OciBeforeReclassificationsNetOfTaxAttributableToParent

ayi:AccumulatedDefinedBenefitPlansPlanAmendmentsAttributableToParent


Oci
Period End2021-05-31
Value-3.2
Percentage of OciBeforeReclassificationsNetOfTaxAttributableToParent100.0

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent


Other
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-302018-05-312018-02-282017-11-302017-05-312017-02-282016-11-302016-05-312016-02-292015-11-302015-05-312015-02-282014-11-302014-05-312014-02-282013-11-302013-05-312013-02-282012-11-302012-05-312011-05-31
Value1600000.0-1700000.0-1600000.0-1800000.0-1700000.0-1900000.0-1300000.0-1400000.0-2600000.0-1900000.0-1800000.0-1600000.0-2000000.0-2100000.0-2000000.0-1300000.0-1300000.0-1400000.0-900000.0-900000.0100000.0-700000.0-600000.0-600000.0-1200000.0-1100000.02100000.0-700000.0-800000.0
Percentage of OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent


Other
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-302018-05-312018-02-282017-11-302017-05-312017-02-282016-11-302016-05-312016-02-292015-11-302015-05-312015-02-282014-11-302014-05-312014-02-282013-11-302013-05-312013-02-282012-11-302012-05-312011-05-31
Value226.74.6-13.8-3.71.9-8.74.9-8.8-7.62.5-10.52.43.3-11.910.0-9.2-4.2-1.5-9.8-7.21.8-1.32.3-0.6-0.61.3-9.54.1
Percentage of OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax


Other
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-30
Value196.74.6-13.8-3.71.9-8.74.9-7.9
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedTranslationAdjustment


Other
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-302018-05-312018-02-282017-11-302017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-31
Value226.74.6-13.8-3.71.9-8.74.9-8.8-7.62.5-10.52.43.3-11.9-2.210.0-9.2-4.2-5.5-1.6-9.7-7.2-2.11.8
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax116.8100.0100.0100.0100.0100.0100.0100.0111.40.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsTax us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsTax

ayi:AccumulatedDefinedBenefitPlansPlanAmendmentsAttributableToParent


Other
Period End2021-05-31
Value3200000.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsTax100.0

us-gaap:OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent


Other
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-30
Value248.76.729-11.4-1.34.3-38.8-6.96.6-5.26.3-8.9-42.412-7.2-2.2-30.5-0.2-8.5-7.2-19.32.8-0.33.3341.21.1-2.4-30.5-8.74.9-8.1
Percentage of OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-30
Value2.22.02.12.42.42.41.81.73.6
Percentage of OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent9.023.031.3-21.1-184.655.8-26.125.8-69.2

us-gaap:AccumulatedTranslationAdjustment


Other
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-30
Value226.74.6-13.8-3.71.9-8.74.9-8.8
Percentage of OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent91.077.068.7121.1284.644.2126.174.2169.2

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent


Other
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-30
Value208.46.228-12.0-2.03.8-29.3-7.46.3-6.26.3-5.74.3-8.9394.45.4-9.9-29.611-7.9-2.8-21.6-0.6-8.9-7.3-14.02.5-0.72.9210.60.5-0.8-18.1-9.04.5-8.4
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302017-02-282016-11-302016-05-312016-02-292015-11-302015-05-312015-02-282014-11-302014-05-312014-02-282013-11-302013-05-312013-02-282012-11-30
Value-1.61.71.61.41.81.71.9-30.41.31.42.62.12.01.31.31.40.90.8-0.10.70.60.61.21.1-2.1
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent-7.720.225.84.8-15.0-85.050.0103.8-17.622.2-41.938.9-20.211.5-16.5-50.0-150.0-9.01.428.0-85.720.7200.0220.0262.5

us-gaap:AccumulatedTranslationAdjustment


Other
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302017-02-282016-11-302016-05-312016-02-292015-11-302015-05-312015-02-282014-11-302014-05-312014-02-282013-11-302013-05-312013-02-282012-11-30
Value226.74.627-13.8-3.71.91.1-8.74.9-8.83.3-11.910.0-9.2-4.2-1.6-9.7-7.21.8-1.32.3-0.6-0.61.3
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent107.779.874.295.2115.0185.050.0-3.8117.677.8141.961.1120.288.5116.5150.0266.7109.098.672.0185.779.3-100.0-120.0-162.5

us-gaap:OtherComprehensiveIncomeLossTaxPortionAttributableToParent1

us-gaap:OtherComprehensiveIncomeLossTaxPortionAttributableToParent1


Other
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-30
Value3.80.30.50.30.60.70.5-9.50.50.31.00.91.0-12.80.70.70.6-8.90.40.40.1-5.30.30.40.4120.60.6-1.6-12.40.30.40.3
Percentage of OtherComprehensiveIncomeLossTaxPortionAttributableToParent1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossTaxPortionAttributableToParent1 us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-30
Value3.80.30.50.60.70.50.50.31.0
Percentage of OtherComprehensiveIncomeLossTaxPortionAttributableToParent1100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsForProceedsFromOtherInvestingActivities


Payments
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312016-08-312016-05-31
Value400000.003100000.0200000.00400000.01500000.000-200000.0-2700000.000000000
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.00.0100.0100.00.0100.0100.00.00.0100.0100.00.00.00.00.00.00.00.00.0

us-gaap:PaymentsForRestructuring

us-gaap:PaymentsForRestructuring


Payments
Period End2020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-30
Value2400000.02200000.01400000.02200000.02300000.0700000.01900000.02800000.02100000.01400000.01800000.02600000.01200000.0900000.01400000.02800000.0
Percentage of PaymentsForRestructuring100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForRestructuring us-gaap:RestructuringPlan

ayi:Fiscal2020ActionsRestructuringActivity


Payments
Period End2021-02-282020-11-302020-05-312020-02-292019-11-30
Value400000.01300000.02100000.01100000.01000000.0
Percentage of PaymentsForRestructuring0.00.095.578.645.5

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation


Payments
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-30
Value0.60.33.00.30.40.64.11.10.60.43.91.00.50.76.02.01.00.911
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired


Payments
Period End2020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312015-12-092016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-30
Value0.00.10.93022.90.00.00.0-0.31370.00.00.00.09.50.06133742390.0140.00.00.00.00.0223.30.00.00.00.03.80.09.94436
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired0.0100.0100.0100.0100.00.00.00.0100.0100.00.00.00.00.0100.00.0100.0100.0100.00.0100.00.00.00.00.00.0100.0100.00.00.00.00.0100.00.0100.0100.0100.0

us-gaap:ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions

us-gaap:ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions


Proceeds
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-31
Value1.10.60.30.20.20.30.20.10.20.20.10.10.20.60.80.30.40.22.14.23.80.26.04.10.12.54.90.10.45.32.64.90.90.98.21.10.15.60.80.70.52.03.31.62.0
Percentage of ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment


Proceeds
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312019-08-312019-05-312018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312010-11-302010-08-31
Value4300000.00400000.0000000000100000.005400000.0-100000.0100000.0100000.02100000.0300000.01000000.000100000.000900000.0200000.07300000.0100000.00100000.0000-100000.0100000.00
Percentage of ProceedsFromSaleOfPropertyPlantAndEquipment100.00.0100.00.00.00.00.00.00.00.00.00.0100.00.0100.0100.0100.0100.0100.0100.0100.00.00.0100.00.00.0100.0100.0100.0100.00.0100.00.00.00.0100.0100.00.0

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax


Reclassification
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-30
Value-1600000.0-1700000.0-1600000.0-1800000.0-1700000.0-1900000.0-1300000.0-1400000.0-1700000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Reclassification
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-302018-05-312018-02-282017-11-302017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-31
Value-1600000.0-1700000.0-1600000.0-1800000.0-1700000.0-1900000.0-1300000.0-1400000.0-1700000.0-1900000.0-1800000.0-1600000.0-2000000.0-2100000.0-2000000.0-1300000.0-1300000.0-1300000.0-1400000.0-1100000.0-900000.0200000.0-900000.0-700000.0-700000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent us-gaap:StatementEquityComponents

us-gaap:ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCredit


Reclassification
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-30
Value800000.0700000.0700000.01000000.01000000.01000000.0800000.0700000.0800000.0
Percentage of ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLoss


Reclassification
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-30
Value1400000.01300000.01400000.01400000.01400000.01400000.01000000.01000000.01100000.0
Percentage of ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent175.0185.7200.0140.0140.0140.0125.0142.9137.5

us-gaap:ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent us-gaap:StatementEquityComponents

us-gaap:ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCredit


Reclassification
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-30
Value600000.0600000.0500000.0800000.0700000.0800000.0600000.0600000.0600000.0
Percentage of ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLoss


Reclassification
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-30
Value1000000.01100000.01100000.01000000.01000000.01100000.0700000.0800000.0800000.0
Percentage of ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent166.7183.3220.0125.0142.9137.5116.7133.3133.3

us-gaap:ReclassificationFromAociCurrentPeriodTax us-gaap:StatementEquityComponents

us-gaap:ReclassificationFromAociCurrentPeriodTax

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCredit


Reclassification
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-30
Value200000.0100000.0200000.0200000.0300000.0200000.0200000.0100000.0200000.0
Percentage of ReclassificationFromAociCurrentPeriodTax100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLoss


Reclassification
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-30
Value400000.0200000.0300000.0400000.0400000.0300000.0300000.0200000.0300000.0
Percentage of ReclassificationFromAociCurrentPeriodTax200.0200.0150.0200.0133.3150.0150.0200.0150.0

us-gaap:RestructuringAndRelatedCostIncurredCost

us-gaap:RestructuringAndRelatedCostIncurredCost


Restructuring
Period End2020-08-312020-05-312020-02-292019-11-302019-05-312019-02-282018-11-302018-05-312018-02-282017-11-302017-05-312017-02-282016-11-30
Value1.22.40.65.10.0-0.3-0.59.70.60.20.30.00.9
Percentage of RestructuringAndRelatedCostIncurredCost100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:RestructuringAndRelatedCostIncurredCost us-gaap:RestructuringPlan

ayi:Fiscal2020ActionsRestructuringActivity


Restructuring
Period End2021-02-282020-11-302020-05-312020-02-292019-11-30
Value-0.40.32.40.75.1
Percentage of RestructuringAndRelatedCostIncurredCost0.00.0100.0116.7100.0

us-gaap:RestructuringCharges

us-gaap:RestructuringCharges


Restructuring
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-312010-05-312010-02-28
Value0.50.30.78.23.31.66.90.5-0.10.41.0-5.19.90.60.29.60.50.01.24.89.70.10.42.60.4-0.610.00.00.0-0.20.00.37.20.30.72.11.96.62.70.00.00.00.03.2-0.35.4
Percentage of RestructuringCharges100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0100.0100.0100.0

us-gaap:RestructuringCharges us-gaap:RestructuringCostAndReserve

ayi:RelocationAndOtherRestructuringCosts


Restructuring
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-30
Value0.00.70.40.91.01.8
Percentage of RestructuringCharges0.0233.357.127.362.526.1

us-gaap:EmployeeSeverance


Restructuring
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-302018-05-312018-02-282017-11-302017-05-312015-05-312015-02-282014-11-30
Value0.5-0.40.32.40.65.10.0-0.3-0.59.90.60.20.30.0-0.610.0
Percentage of RestructuringCharges100.0-133.342.972.737.573.9-0.0-75.0-50.0100.0100.0100.060.00.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod us-gaap:AwardType, us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod

us-gaap:EmployeeStockOption, ayi:AmendedandRestatedAcuityBrandInc.2012OmnibusStockCompensationIncentivePlan


Share
Period End2020-11-302020-08-312020-05-31
Value300000.000
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod100.00.00.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice us-gaap:AwardType, us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice

us-gaap:EmployeeStockOption, ayi:AmendedandRestatedAcuityBrandInc.2012OmnibusStockCompensationIncentivePlan


Share
Period End2020-11-30
Value108.96
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice100.0

us-gaap:ShortTermLeaseCost

us-gaap:ShortTermLeaseCost


Short
Period End2020-08-312020-05-312020-02-29
Value700000.0900000.0900000.0
Percentage of ShortTermLeaseCost100.0100.0100.0

us-gaap:StandardProductWarrantyAccrualPayments

us-gaap:StandardProductWarrantyAccrualPayments


Standard
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-31
Value105.15.97.87.24.77.85.55.03.65.68.2
Percentage of StandardProductWarrantyAccrualPayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StandardProductWarrantyAccrualWarrantiesIssued

us-gaap:StandardProductWarrantyAccrualWarrantiesIssued


Standard
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-31
Value133.56.6109.04.67.95.83.34.25.411
Percentage of StandardProductWarrantyAccrualWarrantiesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures

us-gaap:CommonStock


Stock
Period End2020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-302018-05-312018-02-282017-11-30
Value100000.000000100000.00100000.0100000.0
Percentage of StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures100.00.00.00.00.00.0100.00.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueEmployeeStockPurchasePlan

us-gaap:StockIssuedDuringPeriodValueEmployeeStockPurchasePlan


Stock
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-30
Value300000.0200000.0300000.0200000.0200000.0200000.0200000.0200000.0100000.0100000.0200000.0100000.0200000.0
Percentage of StockIssuedDuringPeriodValueEmployeeStockPurchasePlan100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueEmployeeStockPurchasePlan us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-30
Value300000.0200000.0300000.0200000.0200000.0200000.0200000.0200000.0100000.0100000.0200000.0100000.0200000.0
Percentage of StockIssuedDuringPeriodValueEmployeeStockPurchasePlan100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures


Stock
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-30
Value6.28.64.77.27.5127.07.13.87.06.57.62.6
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-30
Value6.28.64.77.27.5127.07.13.87.06.57.62.5
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.096.2

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised


Stock
Period End2021-05-312021-02-282020-02-292018-08-312018-05-312018-02-282017-11-30
Value0.80.40.10.00.00.50.6
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.0100.0100.00.00.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-05-312021-02-282020-02-292018-08-312018-05-312018-02-282017-11-30
Value0.80.40.10.00.00.50.6
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.0100.0100.00.00.0100.0100.0

us-gaap:StockRepurchasedDuringPeriodShares us-gaap:StatementEquityComponents

us-gaap:StockRepurchasedDuringPeriodShares

us-gaap:CommonStock


Stock
Period End2021-02-282020-11-302019-02-282018-11-302018-05-312018-02-28
Value700000.02600000.0200000.0200000.0800000.01200000.0
Percentage of StockRepurchasedDuringPeriodShares100.0100.0100.0100.0100.0100.0

us-gaap:StockRepurchasedDuringPeriodValue

us-gaap:StockRepurchasedDuringPeriodValue


Stock
Period End2021-05-312021-02-282020-11-302019-02-282018-11-302018-08-312018-05-312018-02-28
Value2.58025623250.0104194
Percentage of StockRepurchasedDuringPeriodValue100.0100.0100.0100.0100.00.0100.0100.0

us-gaap:StockRepurchasedDuringPeriodValue us-gaap:StatementEquityComponents

us-gaap:TreasuryStock


Stock
Period End2021-05-312021-02-282020-11-302019-02-282018-11-302018-08-312018-05-312018-02-28
Value2.58025623250.0104194
Percentage of StockRepurchasedDuringPeriodValue100.0100.0100.0100.0100.00.0100.0100.0

us-gaap:TreasuryStockSharesAcquired ayi:RepurchasePlanTypeAndName, us-gaap:SubsequentEventType

us-gaap:TreasuryStockSharesAcquired

ayi:March2018RepurchasePlan, us-gaap:SubsequentEvent


Treasury
Period End2020-10-22
Value1700000.0
Percentage of TreasuryStockSharesAcquired100.0

us-gaap:VariableLeaseCost

us-gaap:VariableLeaseCost


Variable
Period End2020-08-312020-05-312020-02-29
Value500000.0600000.0400000.0
Percentage of VariableLeaseCost100.0100.0100.0

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment


Weighted
Period End2021-05-312021-02-282020-11-302020-05-312020-02-292019-11-302019-05-312019-02-282018-11-302018-05-312018-02-282017-11-302017-05-312017-02-282016-11-302016-05-312016-02-292015-11-302015-05-312015-02-282014-11-302014-05-312014-02-282013-11-302013-05-312013-02-282012-11-302012-05-312012-02-292011-11-302011-05-312011-02-282010-11-30
Value500000.0200000.0200000.0200000.0200000.0100000.0100000.0100000.0100000.0100000.0100000.0200000.0200000.0200000.0200000.0300000.0300000.0300000.0300000.0300000.0300000.0300000.0300000.0300000.0400000.0400000.0500000.0400000.0500000.0500000.0600000.0700000.0800000.0
Percentage of WeightedAverageNumberDilutedSharesOutstandingAdjustment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ayi:DebtIssuancePricePercentageOfFaceValue dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

ayi:DebtIssuancePricePercentageOfFaceValue

ayi:AcuityBrandsLightingInc, ayi:A2150SeniorUnsecuredNotesDueDecember2030, us-gaap:UnsecuredDebt


Debt
Period End2020-11-10
Value99.737
Percentage of DebtIssuancePricePercentageOfFaceValue100.0

ayi:DeferredCompensationAndPostretirementDefinedBenefitPlansLiabilitiesNoncurrent

ayi:DeferredCompensationAndPostretirementDefinedBenefitPlansLiabilitiesNoncurrent


Deferred
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-312012-08-312011-08-312010-08-31
Value4241403937343231323132
Percentage of DeferredCompensationAndPostretirementDefinedBenefitPlansLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ayi:DeferredCompensationArrangementSharesOutstanding us-gaap:AwardType, us-gaap:PlanName

ayi:DeferredCompensationArrangementSharesOutstanding

ayi:EmployeeDeferredShareUnits, ayi:SupplementalDeferredSavingsPlan


Deferred
Period End2020-08-31
Value7500.0
Percentage of DeferredCompensationArrangementSharesOutstanding100.0

us-gaap:RestrictedStockUnitsRSU, ayi:DirectorsDeferredCompensationPlan


Deferred
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-31
Value98000.0119000.0122000.0132000.0130000.0134000.0134000.0135000.0
Percentage of DeferredCompensationArrangementSharesOutstanding1306.70.00.00.00.00.00.00.0

ayi:DeferredTaxAssetOperatingLeaseRightofuseAsset

ayi:DeferredTaxAssetOperatingLeaseRightofuseAsset


Deferred
Period End2020-08-31
Value15
Percentage of DeferredTaxAssetOperatingLeaseRightofuseAsset100.0

ayi:DeferredTaxAssetsOperatingLeaseLiabilities

ayi:DeferredTaxAssetsOperatingLeaseLiabilities


Deferred
Period End2020-08-31
Value18
Percentage of DeferredTaxAssetsOperatingLeaseLiabilities100.0

ayi:OtherLongTermAssets

ayi:OtherLongTermAssets


Other
Period End2020-08-312019-08-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312010-08-31
Value29172121181011111311131423232525272417212424242627262727283027272820
Percentage of OtherLongTermAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ayi:OtherLongTermLiabilities

ayi:OtherLongTermLiabilities


Other
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-312012-08-312012-02-292011-11-302011-08-312010-08-31
Value1201106763595150545454585145
Percentage of OtherLongTermLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ayi:ResearchandDevelopmentTaxCreditReceivable

ayi:ResearchandDevelopmentTaxCreditReceivable


Researchand
Period End2020-08-31
Value8600000.0
Percentage of ResearchandDevelopmentTaxCreditReceivable100.0

ayi:StockRepurchaseProgramNumberofAdditionalSharesAuthorizedtobeRepurchased ayi:RepurchasePlanTypeAndName, us-gaap:SubsequentEventType

ayi:StockRepurchaseProgramNumberofAdditionalSharesAuthorizedtobeRepurchased

ayi:October2020RepurchasePlan, us-gaap:SubsequentEvent


Stock
Period End2020-10-23
Value3800000.0
Percentage of StockRepurchaseProgramNumberofAdditionalSharesAuthorizedtobeRepurchased100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent


Allowance
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-31
Value2100000.02600000.02400000.02600000.01800000.01400000.01100000.01000000.01300000.01400000.01300000.01300000.02000000.02100000.02000000.01900000.01800000.01600000.01600000.01700000.01900000.01900000.01400000.01300000.01200000.01300000.01600000.01900000.02100000.02000000.02000000.01500000.01600000.01500000.01400000.01400000.01700000.02000000.01800000.01800000.01700000.01700000.02200000.02000000.0
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperation us-gaap:DisposalGroupClassification

us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperation

us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations


Assets
Period End2020-08-31
Value4100000.0
Percentage of AssetsOfDisposalGroupIncludingDiscontinuedOperation100.0

us-gaap:CommonStockValueOutstanding us-gaap:RetirementPlanType

us-gaap:CommonStockValueOutstanding

us-gaap:OtherPensionPlansDefinedBenefit


Common
Period End2020-08-31
Value5900000.0
Percentage of CommonStockValueOutstanding100.0

us-gaap:ContractWithCustomerLiabilityNoncurrent

us-gaap:ContractWithCustomerLiabilityNoncurrent


Contract
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-09-01
Value565554535150474643403735
Percentage of ContractWithCustomerLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityNoncurrent us-gaap:FairValueByLiabilityClass

ayi:ServiceTypeWarranties


Contract
Period End2020-08-312019-08-31
Value5546
Percentage of ContractWithCustomerLiabilityNoncurrent104.199.8

us-gaap:ContractWithCustomerRefundLiability us-gaap:MajorCustomers

us-gaap:ContractWithCustomerRefundLiability

ayi:CustomerswithRebateMarketingandTradePromotionPrograms


Contract
Period End2020-08-312019-08-312018-09-01
Value273443
Percentage of ContractWithCustomerRefundLiability100.0100.0100.0

ayi:CustomerswithRightsofReturnCashDiscountsandOtherCredits


Contract
Period End2020-08-312019-08-312019-05-312019-02-282018-11-302018-09-01
Value313738363941
Percentage of ContractWithCustomerRefundLiability111.9108.10.00.00.093.8

us-gaap:ContractWithCustomerRightToRecoverProduct

us-gaap:ContractWithCustomerRightToRecoverProduct


Contract
Period End2020-08-312019-08-312019-05-312019-02-282018-11-302018-09-01
Value101315151616
Percentage of ContractWithCustomerRightToRecoverProduct100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentInterestRateEffectivePercentage us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentInterestRateEffectivePercentage

us-gaap:Bonds, ayi:IndustrialRevenueBond


Debt
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-312012-08-312011-08-312010-08-31
Value1.00.0170.0170.0090.0070.0010.0020.0020.0030.0030.004
Percentage of DebtInstrumentInterestRateEffectivePercentage100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredCosts

us-gaap:DeferredCosts


Deferred
Period End2020-08-312019-08-312018-08-31
Value121512
Percentage of DeferredCosts100.0100.0100.0

us-gaap:DeferredFinanceCostsGross dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DeferredFinanceCostsGross

ayi:AcuityBrandsLightingInc, ayi:A2150SeniorUnsecuredNotesDueDecember2030, us-gaap:UnsecuredDebt


Deferred
Period End2020-11-10
Value4800000.0
Percentage of DeferredFinanceCostsGross100.0

us-gaap:DeferredIncomeTaxAssetsNet

us-gaap:DeferredIncomeTaxAssetsNet


Deferred
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312016-08-31
Value2.52.52.72.71.92.12.32.32.82.92.92.93.13.23.33.45.1
Percentage of DeferredIncomeTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredIncomeTaxLiabilities


Deferred
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-31
Value197174168218187118
Percentage of DeferredIncomeTaxLiabilities100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsGross


Deferred
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-312012-08-312011-08-312010-08-31
Value11188821281341059286948186
Percentage of DeferredTaxAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards


Deferred
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-312012-08-312011-08-312010-08-31
Value5.66.26.21314151817131314
Percentage of DeferredTaxAssetsOperatingLossCarryforwards100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal


Deferred
Period End2020-08-31
Value1600000.0
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal100.0

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsOther


Deferred
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-312012-08-312011-08-312010-08-31
Value9.39.77.010128.95.76.46.53.83.9
Percentage of DeferredTaxAssetsOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions


Deferred
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-312012-08-312011-08-312010-08-31
Value2222183341292117302025
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost


Deferred
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-312012-08-312011-08-312010-08-31
Value2220233228272726262221
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther


Deferred
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-312012-08-312011-08-312010-08-31
Value3226243333181514121616
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance


Deferred
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-312012-08-312011-08-312010-08-31
Value2100000.02600000.02600000.04100000.04000000.03900000.03800000.03600000.03200000.03800000.03900000.0
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssets

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssets


Deferred
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-312012-08-312011-08-312010-08-31
Value15314915119416110510198888263
Percentage of DeferredTaxLiabilitiesGoodwillAndIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesOther


Deferred
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-312012-08-312011-08-312010-08-31
Value5300000.02800000.02300000.04000000.03700000.04200000.05300000.05800000.06100000.06100000.01600000.0
Percentage of DeferredTaxLiabilitiesOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment


Deferred
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-312012-08-312011-08-312010-08-31
Value23221520229.66.18.16.05.54.4
Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesUndistributedForeignEarnings

us-gaap:DeferredTaxLiabilitiesUndistributedForeignEarnings


Deferred
Period End2020-08-31
Value2900000.0
Percentage of DeferredTaxLiabilitiesUndistributedForeignEarnings100.0

us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-312016-08-31
Value249239202215220
Percentage of DefinedBenefitPlanAccumulatedBenefitObligation100.0100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-312016-08-31
Value4944455357
Percentage of DefinedBenefitPlanAccumulatedBenefitObligation19.818.622.424.826.0

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-312016-08-31
Value87956386107
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax100.0100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-312016-08-31
Value1313121828
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax15.413.620.321.126.2

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-312016-08-31
Value-79.2-83.4-58.8-78.7-96.9
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax100.0100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-312016-08-31
Value-13.5-13.0-12.9-18.2-28.2
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax17.015.621.923.129.1

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-312016-08-31
Value8.4124.67.710
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheet us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheet

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-312016-08-31
Value-82500000.0-87700000.0-53800000.0-78700000.0-94200000.0
Percentage of DefinedBenefitPlanAmountsRecognizedInBalanceSheet100.0100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-312016-08-31
Value-14100000.0-13900000.0-14600000.0-19400000.0-27000000.0
Percentage of DefinedBenefitPlanAmountsRecognizedInBalanceSheet17.115.827.124.728.7

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-312016-08-31
Value2.20.0280.0390.0350.032
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate100.0100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-312016-08-31
Value1.90.020.0290.0250.021
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate86.471.474.471.465.6

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-312016-08-31
Value5.00.050.0550.0550.055
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease100.0100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-312016-08-31
Value3.00.0310.0310.0320.028
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease60.062.056.458.250.9

us-gaap:DefinedBenefitPlanBenefitObligation us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanBenefitObligation

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-31
Value249239203215223192
Percentage of DefinedBenefitPlanBenefitObligation100.0100.0100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-31
Value494445535749
Percentage of DefinedBenefitPlanBenefitObligation19.718.622.424.825.725.9

us-gaap:DefinedBenefitPlanExpectedAmortizationOfGainLossNextFiscalYear us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedAmortizationOfGainLossNextFiscalYear

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-312016-08-31
Value4100000.04100000.02900000.04500000.05300000.0
Percentage of DefinedBenefitPlanExpectedAmortizationOfGainLossNextFiscalYear100.0100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-312016-08-31
Value600000.01400000.01500000.02200000.03700000.0
Percentage of DefinedBenefitPlanExpectedAmortizationOfGainLossNextFiscalYear14.634.151.748.969.8

us-gaap:DefinedBenefitPlanExpectedAmortizationOfPriorServiceCostCreditNextFiscalYear us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedAmortizationOfPriorServiceCostCreditNextFiscalYear

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-312016-08-31
Value2900000.04000000.03100000.03100000.03100000.0
Percentage of DefinedBenefitPlanExpectedAmortizationOfPriorServiceCostCreditNextFiscalYear100.0100.0100.0100.0100.0

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

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-31
Value67667071
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-31
Value7.56.35.66.1
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter11.19.47.98.6

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-31
Value129.5128.3
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-31
Value1.11.00.81.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths8.610.56.312.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-31
Value13171711
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-31
Value1.31.11.01.1
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive10.06.25.89.5

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-31
Value17241012
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-31
Value1.31.11.01.1
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour7.34.59.78.9

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-31
Value23129.88.6
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-31
Value1.21.00.91.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree5.28.09.211.6

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-31
Value119.39.18.4
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-31
Value1.21.00.91.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo10.310.89.911.9

us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear

country:US, us-gaap:QualifiedPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-31
Value1000000.03600000.0
Percentage of DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear100.0100.0

us-gaap:ForeignPlan, us-gaap:QualifiedPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-31
Value1200000.01000000.0
Percentage of DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear120.027.8

us-gaap:DefinedBenefitPlanFundedStatusOfPlan us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanFundedStatusOfPlan

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-312016-08-31
Value-82500000.0-87700000.0-53800000.0-78700000.0-94200000.0
Percentage of DefinedBenefitPlanFundedStatusOfPlan100.0100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-312016-08-31
Value-14100000.0-13900000.0-14600000.0-19400000.0-27000000.0
Percentage of DefinedBenefitPlanFundedStatusOfPlan17.115.827.124.728.7

us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsAccumulatedBenefitObligation us-gaap:RetirementPlanFundingStatus, us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsAccumulatedBenefitObligation

us-gaap:UnderfundedPlan, country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-31
Value249239
Percentage of DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsAccumulatedBenefitObligation100.0100.0

us-gaap:UnderfundedPlan, us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-31
Value4944
Percentage of DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsAccumulatedBenefitObligation19.818.6

us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsPlanAssets us-gaap:RetirementPlanFundingStatus, us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsPlanAssets

us-gaap:UnderfundedPlan, country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-31
Value167151
Percentage of DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsPlanAssets100.0100.0

us-gaap:UnderfundedPlan, us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-31
Value3530
Percentage of DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsPlanAssets21.020.3

us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsProjectedBenefitObligation us-gaap:RetirementPlanFundingStatus, us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsProjectedBenefitObligation

us-gaap:UnderfundedPlan, country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-31
Value249239
Percentage of DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsProjectedBenefitObligation100.0100.0

us-gaap:UnderfundedPlan, us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-31
Value4944
Percentage of DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsProjectedBenefitObligation19.718.6

us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage

us-gaap:HedgeFundsMultistrategy, us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-31
Value10.00.10.150.1
Percentage of DefinedBenefitPlanPlanAssetsTargetAllocationPercentage100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations

us-gaap:EquitySecurities, country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-312016-08-31
Value58.20.5330.5750.5810.554
Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations100.0100.0100.0100.0100.0

us-gaap:EquitySecurities, us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-312016-08-31
Value76.90.730.6190.6390.611
Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations132.1137.0107.7110.0110.3

us-gaap:FixedIncomeSecurities, country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-312016-08-31
Value37.30.4180.3780.3720.391
Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations64.178.465.764.070.6

us-gaap:FixedIncomeSecurities, us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-312016-08-31
Value13.70.1710.2550.2320.25
Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations23.532.144.339.945.1

us-gaap:HedgeFundsMultistrategy, us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-312016-08-31
Value9.40.0990.1260.0820.089
Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations16.218.621.914.116.1

us-gaap:RealEstate, country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-312016-08-31
Value4.50.0490.0470.0470.055
Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations7.79.28.28.19.9

us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-312016-08-31
Value100.01.01.01.01.0
Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations171.8187.6173.9172.1180.5

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-08-312019-08-312018-08-312017-08-312016-08-31
Value100.01.01.01.01.0
Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations171.8187.6173.9172.1180.5

us-gaap:DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment us-gaap:DisposalGroupClassification, us-gaap:SubsequentEventType

us-gaap:DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment

us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, us-gaap:SubsequentEvent


Disposal
Period End2021-07-01
Value6600000.0
Percentage of DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent


Employee
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312010-08-31
Value10591758555555073666139675838314126252693775034785844415434302728251821444032224551
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized us-gaap:AwardType, us-gaap:PlanName

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:EmployeeStockOption, ayi:AmendedandRestatedAcuityBrandInc.2012OmnibusStockCompensationIncentivePlan


Employee
Period End2020-11-302020-08-312019-08-31
Value23152.8
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized100.0100.0100.0

us-gaap:PerformanceShares, ayi:SupplementalDeferredSavingsPlan


Employee
Period End2020-08-31
Value1.9
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized12.5

us-gaap:RestrictedStock, ayi:AmendedandRestatedAcuityBrandInc.2012OmnibusStockCompensationIncentivePlan


Employee
Period End2020-08-312019-08-31
Value2634
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized172.41235.7

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization


Finite
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-312012-08-312011-11-302011-08-312010-08-31
Value24219916914611796857463555141
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization us-gaap:FiniteLivedIntangibleAssetsByMajorClass

ayi:PatentsAndPatentedTechnology


Finite
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-312012-08-31
Value897262513930262218
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization36.936.636.835.233.931.530.930.028.8

us-gaap:CustomerRelationships


Finite
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-312012-08-31
Value947251432920161310
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization38.936.230.229.424.921.619.118.816.9

us-gaap:DistributionRights


Finite
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-312012-08-31
Value423942353330292725
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization17.719.925.224.028.032.034.837.039.6

us-gaap:TrademarksAndTradeNames


Finite
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-31
Value15141312109.78.66.9
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization6.57.37.88.29.110.110.19.3

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths


Finite
Period End2021-05-312021-02-282020-11-302020-08-31
Value40404040
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear


Finite
Period End2021-05-312021-02-282020-11-302018-05-31
Value40404028
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive


Finite
Period End2020-08-312018-05-31
Value3325
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFive100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour


Finite
Period End2021-05-312021-02-282020-11-302020-08-312018-05-31
Value3333334026
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFour100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree


Finite
Period End2021-05-312021-02-282020-11-302020-08-312018-05-31
Value4040404029
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearThree100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo


Finite
Period End2021-05-312021-02-282020-11-302020-08-312018-05-31
Value4040404029
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsGross

us-gaap:FiniteLivedIntangibleAssetsGross


Finite
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-312012-08-312011-11-302011-08-312010-08-31
Value674523523458364220216219197192190145
Percentage of FiniteLivedIntangibleAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsGross us-gaap:FiniteLivedIntangibleAssetsByMajorClass

ayi:PatentsAndPatentedTechnology


Finite
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-312012-08-31
Value16313513512411272697150
Percentage of FiniteLivedIntangibleAssetsGross24.325.925.927.130.833.031.932.525.6

us-gaap:CustomerRelationships


Finite
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-312012-08-31
Value42129929824015755555554
Percentage of FiniteLivedIntangibleAssetsGross62.557.157.152.543.425.125.425.227.4

us-gaap:TrademarksAndTradeNames


Finite
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-31
Value2727272727252525
Percentage of FiniteLivedIntangibleAssetsGross4.05.25.25.97.511.511.711.6

us-gaap:InventoryGross

us-gaap:InventoryGross


Inventory
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312010-08-31
Value413364357369395374377363419443457448447354369357368379355315309294258239269249226223225240219213211204204204178169173176158
Percentage of InventoryGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InventoryValuationReserves

us-gaap:InventoryValuationReserves


Inventory
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312010-08-31
Value4342414940252422283037364132292826262120201616141312121111121110101010109.71010109.4
Percentage of InventoryValuationReserves100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InventoryWorkInProcessAndRawMaterials

us-gaap:InventoryWorkInProcessAndRawMaterials


Inventory
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312012-08-312011-08-31
Value17116316117019118819017917818319619619616717617618319418117015915013112513512912612511812912412211812097
Percentage of InventoryWorkInProcessAndRawMaterials100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVenturesFairValueDisclosure

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVenturesFairValueDisclosure


Investments
Period End2020-08-312017-08-312016-08-312015-08-312014-08-31
Value6.00.08.08.00.0
Percentage of InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVenturesFairValueDisclosure100.00.0100.0100.00.0

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVenturesFairValueDisclosure us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


Investments
Period End2021-05-312021-02-282020-11-302020-08-312017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312014-08-31
Value7.35.55.56.00.00.00.00.08.08.08.08.08.08.00.0
Percentage of InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVenturesFairValueDisclosure0.00.00.0100.00.00.00.00.0100.00.00.00.0100.00.00.0

us-gaap:EstimateOfFairValueFairValueDisclosure


Investments
Period End2021-05-312021-02-282020-11-302020-08-312017-08-312016-08-312015-08-312015-05-312014-08-31
Value7.35.55.56.00.0148.08.00.0
Percentage of InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVenturesFairValueDisclosure0.00.00.0100.00.0180.0100.00.00.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2020-08-31
Value18
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths100.0

us-gaap:LettersOfCreditOutstandingAmount us-gaap:DebtInstrument

us-gaap:LettersOfCreditOutstandingAmount

us-gaap:RevolvingCreditFacility


Letters
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-30
Value3.83.85.35.36.16.16.16.16.26.26.26.26.25.75.75.75.7
Percentage of LettersOfCreditOutstandingAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LettersOfCreditOutstandingAmount us-gaap:DebtInstrument, us-gaap:LongtermDebtType

ayi:NewRevolvingCreditFacility, us-gaap:LetterOfCredit


Letters
Period End2021-05-312021-02-282020-11-302020-05-312020-02-29
Value4.14.24.13.83.8
Percentage of LettersOfCreditOutstandingAmount0.00.00.00.00.0

us-gaap:LettersOfCreditOutstandingAmount us-gaap:LongtermDebtType

us-gaap:LineOfCredit


Letters
Period End2020-08-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-08-312014-08-312013-08-312012-08-312011-11-302011-08-31
Value8.18.18.18.09.59.59.5101010101010111111111110109.99.91313
Percentage of LettersOfCreditOutstandingAmount213.20.00.0210.50.00.00.0192.50.00.00.0194.30.00.00.0180.30.00.0168.9167.7173.70.00.00.0

us-gaap:RevolvingCreditFacility


Letters
Period End2021-05-312021-02-282020-11-302020-05-31
Value8.38.48.38.1
Percentage of LettersOfCreditOutstandingAmount0.00.00.00.0

us-gaap:LiabilityForUncertainTaxPositionsNoncurrent

us-gaap:LiabilityForUncertainTaxPositionsNoncurrent


Liability
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-312012-08-312011-08-312010-08-31
Value18174.97.06.15.23.55.77.57.16.7
Percentage of LiabilityForUncertainTaxPositionsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LineOfCredit us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:LineOfCredit

ayi:UnsecuredDelayedDrawTermLoan, us-gaap:UnsecuredDebt


Line
Period End2020-08-31
Value395
Percentage of LineOfCredit100.0

us-gaap:LineOfCreditFacilityCurrentBorrowingCapacity us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:LineOfCreditFacilityCurrentBorrowingCapacity

ayi:NewRevolvingCreditFacility, us-gaap:RevolvingCreditFacility


Line
Period End2021-05-312021-02-282020-11-30
Value395395395
Percentage of LineOfCreditFacilityCurrentBorrowingCapacity100.0100.0100.0

us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Line
Period End2020-08-31
Value396
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us-gaap:LongTermDebtFairValue us-gaap:DebtInstrument, us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType

us-gaap:LongTermDebtFairValue

ayi:A2016FixedrateBankLoans, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:BankLoanObligations


Long
Period End2020-08-31
Value2.1
Percentage of LongTermDebtFairValue100.0

ayi:A2016FixedrateBankLoans, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:BankLoanObligations


Long
Period End2020-08-31
Value2.3
Percentage of LongTermDebtFairValue109.5

ayi:A2150SeniorUnsecuredNotesDueDecember2030, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:UnsecuredDebt


Long
Period End2021-05-312021-02-28
Value494494
Percentage of LongTermDebtFairValue0.00.0

ayi:A2150SeniorUnsecuredNotesDueDecember2030, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:UnsecuredDebt


Long
Period End2021-05-312021-02-28
Value490490
Percentage of LongTermDebtFairValue0.00.0

ayi:UnsecuredDelayedDrawTermLoan, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:UnsecuredDebt


Long
Period End2020-08-31
Value395
Percentage of LongTermDebtFairValue18809.5

ayi:UnsecuredDelayedDrawTermLoan, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:UnsecuredDebt


Long
Period End2020-08-31
Value395
Percentage of LongTermDebtFairValue18809.5

us-gaap:LongTermDebtFairValue us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType

us-gaap:CarryingReportedAmountFairValueDisclosure, ayi:UnsecuredDelayedDrawTermLoan


Long
Period End2020-08-312020-05-312020-02-292019-08-31
Value3953974000.0
Percentage of LongTermDebtFairValue18809.50.00.00.0

us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:BankLoanObligations


Long
Period End2020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312015-08-31
Value2.02.12.12.22.32.72.83.03.13.33.43.63.73.83.73.23.22.50.0
Percentage of LongTermDebtFairValue0.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:SeniorNotes


Long
Period End2020-11-302020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-08-31
Value4930.00.0350349349349349349349349349349349348348348348348348
Percentage of LongTermDebtFairValue0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:EstimateOfFairValueFairValueDisclosure, ayi:UnsecuredDelayedDrawTermLoan


Long
Period End2020-08-31
Value395
Percentage of LongTermDebtFairValue18809.5

us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:BankLoanObligations


Long
Period End2020-11-302020-08-312019-08-312018-08-312017-08-312016-08-312015-08-31
Value2.22.32.93.33.82.60.0
Percentage of LongTermDebtFairValue0.0109.50.00.00.00.00.0

us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:SeniorNotes


Long
Period End2020-11-30
Value501
Percentage of LongTermDebtFairValue0.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive


Long
Period End2020-08-31
Value700000.0
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths


Long
Period End2020-08-31
Value24
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive


Long
Period End2020-08-31
Value300000.0
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour


Long
Period End2020-08-31
Value300000.0
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree


Long
Period End2020-08-31
Value355
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo


Long
Period End2020-08-31
Value20
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo100.0

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent


Operating
Period End2020-08-31
Value1.9
Percentage of OperatingLeaseWeightedAverageDiscountRatePercent100.0

us-gaap:OperatingLossCarryforwards us-gaap:IncomeTaxAuthority

us-gaap:OperatingLossCarryforwards

us-gaap:ForeignCountry


Operating
Period End2020-08-312019-08-312017-08-312016-08-312015-08-312014-08-312013-08-312012-08-312011-08-31
Value2.91.821212327226.92.6
Percentage of OperatingLossCarryforwards100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InternalRevenueServiceIRS


Operating
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-312012-08-312011-08-31
Value32324723242528313134
Percentage of OperatingLossCarryforwards1103.41827.80.0109.9114.6108.0104.0140.2460.91307.7

us-gaap:StateAndLocalJurisdiction


Operating
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-312012-08-312011-08-31
Value2120139.9121714161712
Percentage of OperatingLossCarryforwards731.01127.80.046.759.071.451.672.3256.5465.4

us-gaap:OtherAssetsMiscellaneousNoncurrent

us-gaap:OtherAssetsMiscellaneousNoncurrent


Other
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-312012-08-312011-08-312010-08-31
Value2600000.02300000.04400000.06500000.05900000.06800000.07600000.06200000.04100000.03800000.01300000.0
Percentage of OtherAssetsMiscellaneousNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities

country:US, us-gaap:PensionPlansDefinedBenefit


Pension
Period End2020-08-312019-08-312018-08-312017-08-312016-08-31
Value5000000.01800000.05300000.01200000.01300000.0
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities100.0100.0100.0100.0100.0

us-gaap:RecordedUnconditionalPurchaseObligationDueInSecondYear

us-gaap:RecordedUnconditionalPurchaseObligationDueInSecondYear


Recorded
Period End2020-08-31
Value5100000.0
Percentage of RecordedUnconditionalPurchaseObligationDueInSecondYear100.0

us-gaap:RecordedUnconditionalPurchaseObligationDueWithinOneYear

us-gaap:RecordedUnconditionalPurchaseObligationDueWithinOneYear


Recorded
Period End2020-08-31
Value301
Percentage of RecordedUnconditionalPurchaseObligationDueWithinOneYear100.0

us-gaap:RestructuringReserve

us-gaap:RestructuringReserve


Restructuring
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312015-08-312014-08-31
Value1.31.22.03.04.24.04.81.93.94.66.810179.010122.73.34.76.64.90.8
Percentage of RestructuringReserve100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestructuringReserve ayi:RestructuringActivityByActionsYear

ayi:Fiscal2020ActionsRestructuringActivity


Restructuring
Period End2020-08-31
Value3.0
Percentage of RestructuringReserve100.0

us-gaap:RestructuringReserve us-gaap:RestructuringPlan

ayi:Fiscal2020ActionsRestructuringActivity


Restructuring
Period End2021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-31
Value1.22.03.04.03.74.10.0
Percentage of RestructuringReserve100.0100.0100.095.292.585.40.0

ayi:TransferOfActivitiesPlannedFacilityClosures


Restructuring
Period End2021-05-312020-08-31
Value1.33.0
Percentage of RestructuringReserve100.0100.0

us-gaap:SelfInsuranceReserve

us-gaap:SelfInsuranceReserve


Self
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-312012-08-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-31
Value6500000.06800000.07900000.07900000.07200000.06900000.06800000.07000000.06600000.07600000.07300000.07300000.07400000.07800000.07400000.07600000.0
Percentage of SelfInsuranceReserve100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SelfInsuranceReserveNoncurrent

us-gaap:SelfInsuranceReserveNoncurrent


Self
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312011-08-31
Value6400000.06800000.06700000.06500000.07100000.07000000.07200000.06800000.07500000.08300000.08100000.07900000.09300000.09000000.08600000.07900000.08000000.08200000.07400000.07200000.07700000.08200000.07400000.06900000.07400000.07400000.07200000.06800000.07400000.07400000.07200000.07000000.07300000.07000000.06700000.06600000.07200000.07300000.0
Percentage of SelfInsuranceReserveNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber us-gaap:AwardType, us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber

us-gaap:PerformanceShares, ayi:SupplementalDeferredSavingsPlan


Share
Period End2020-08-312018-08-31
Value67000.00
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber100.00.0

us-gaap:RestrictedStock, ayi:AmendedandRestatedAcuityBrandInc.2012OmnibusStockCompensationIncentivePlan


Share
Period End2020-08-312019-08-312018-08-312017-08-31
Value350000.0350000.0400000.0400000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber522.40.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue us-gaap:AwardType, us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:RestrictedStock, ayi:AmendedandRestatedAcuityBrandInc.2012OmnibusStockCompensationIncentivePlan


Share
Period End2020-08-312019-08-312018-08-312017-08-31
Value134.68156.32186.63197.41
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant us-gaap:AwardType, us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant

us-gaap:RestrictedStockUnitsRSU, ayi:DirectorsDeferredCompensationPlan


Share
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-312012-08-312012-01-312011-08-31
Value320000.0360000.0370000.0390000.0400000.0400000.0400000.0400000.0400000.0300000.0200000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant us-gaap:PlanName

ayi:AmendedandRestatedAcuityBrandInc.2012OmnibusStockCompensationIncentivePlan


Share
Period End2020-08-312019-08-312018-08-312017-08-31
Value700000.01400000.01600000.01400000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant218.8388.9432.4359.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber us-gaap:AwardType, us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber

us-gaap:EmployeeStockOption, ayi:AmendedandRestatedAcuityBrandInc.2012OmnibusStockCompensationIncentivePlan


Share
Period End2020-11-302020-08-312020-05-312020-02-292019-08-312018-08-312017-08-312016-08-31
Value400000.0400000.0400000.0400000.0300000.0200000.0200000.0100000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice us-gaap:AwardType, us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:EmployeeStockOption, ayi:AmendedandRestatedAcuityBrandInc.2012OmnibusStockCompensationIncentivePlan


Share
Period End2020-11-302020-08-312020-05-312020-02-292019-08-312018-08-312017-08-312016-08-31
Value148.9151.07151.07151.07147.51134.13106.5483.89
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue us-gaap:AwardType, us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:EmployeeStockOption, ayi:AmendedandRestatedAcuityBrandInc.2012OmnibusStockCompensationIncentivePlan


Share
Period End2020-11-302020-08-31
Value7500000.03300000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue us-gaap:AwardType, us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue

us-gaap:EmployeeStockOption, ayi:AmendedandRestatedAcuityBrandInc.2012OmnibusStockCompensationIncentivePlan


Share
Period End2020-11-30
Value2900000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue100.0

us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions us-gaap:PlanName, us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRange

us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions

ayi:AmendedandRestatedAcuityBrandInc.2012OmnibusStockCompensationIncentivePlan, ayi:ExercisePriceRangeTwo


Share
Period End2020-11-302020-08-312020-05-312020-02-292019-08-31
Value200000.0200000.0200000.0200000.0100000.0
Percentage of ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions us-gaap:PlanName, us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRange

us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions

ayi:AmendedandRestatedAcuityBrandInc.2012OmnibusStockCompensationIncentivePlan, ayi:ExercisePriceRangeTwo


Share
Period End2020-11-302020-08-312020-05-312020-02-292019-08-31
Value1000000.0700000.0700000.0700000.0200000.0
Percentage of ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions100.0100.0100.0100.0100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1 us-gaap:AwardType, us-gaap:PlanName

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1

us-gaap:EmployeeStockOption, ayi:AmendedandRestatedAcuityBrandInc.2012OmnibusStockCompensationIncentivePlan


Sharebased
Period End2020-11-302020-08-31
Value4500000.03300000.0
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1100.0100.0

us-gaap:SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 us-gaap:PlanName, us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRange

us-gaap:SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1

ayi:AmendedandRestatedAcuityBrandInc.2012OmnibusStockCompensationIncentivePlan, ayi:ExercisePriceRangeTwo


Sharebased
Period End2020-11-302020-08-312020-05-312020-02-292019-08-31
Value126.85126.16126.16126.16125.09
Percentage of SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1100.0100.0100.0100.0100.0

us-gaap:SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1 us-gaap:PlanName, us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRange

us-gaap:SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1

ayi:AmendedandRestatedAcuityBrandInc.2012OmnibusStockCompensationIncentivePlan, ayi:ExercisePriceRangeTwo


Sharebased
Period End2020-11-302020-08-312020-05-312020-02-292019-08-31
Value119.11123.01123.02123.02125.66
Percentage of SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1100.0100.0100.0100.0100.0

us-gaap:StandardProductWarrantyAccrual

us-gaap:StandardProductWarrantyAccrual


Standard
Period End2021-05-312021-02-282020-11-302020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312017-08-312016-08-31
Value181516161311111111121227242215
Percentage of StandardProductWarrantyAccrual100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased ayi:RepurchasePlanTypeAndName

us-gaap:StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased

ayi:March2018RepurchasePlan


Stock
Period End2020-08-31
Value3900000.0
Percentage of StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased100.0

us-gaap:TreasuryStockShares

us-gaap:TreasuryStockShares


Treasury
Period End2020-08-312020-05-312020-02-292019-11-302019-08-312019-05-312019-02-282018-11-302018-08-312018-05-312018-02-282017-11-302017-08-312017-05-312017-02-282016-11-302016-08-312016-05-312016-02-292015-11-302015-08-312015-05-312015-02-282014-11-302014-08-312014-05-312014-02-282013-11-302013-08-312013-05-312013-02-282012-11-302012-08-312012-05-312012-02-292011-11-302011-08-312011-05-312011-02-282010-11-302010-08-31
Value15141414141414131313121111119.6797529.6797529.6794579.7192559.7192559.7192559.7192559.7192559.7192559.7192559.7192559.7192559.7192559.7192559.7192559.7192559.7192559.7192559.7192559.7192559.7192559.7192559.4672558.2547558.2547558.3251618.325161
Percentage of TreasuryStockShares100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued

us-gaap:UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued


Unrecognized
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-312013-08-312012-08-31
Value1700000.01000000.0500000.01000000.0900000.0700000.0500000.0600000.0800000.0
Percentage of UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate


Unrecognized
Period End2020-08-312019-08-312018-08-312017-08-312016-08-312015-08-312014-08-31
Value16153.84.43.93.32.2
Percentage of UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate100.0100.0100.0100.0100.0100.0100.0

us-gaap:ValuationAllowancesAndReservesBalance us-gaap:ValuationAllowancesAndReservesType

us-gaap:ValuationAllowancesAndReservesBalance

us-gaap:InventoryValuationReserve


Valuation
Period End2020-08-312019-08-312018-08-312017-08-31
Value49223628
Percentage of ValuationAllowancesAndReservesBalance100.0100.0100.0100.0

Line plots across dimensions of each concept


us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities
(None,)
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amountus-gaap: Antidilutive Securities Excluded From Computation Of Earnings Per Share By Antidilutive Securities
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:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents
(None,)
Other Comprehensive Income Loss Net Of Taxus-gaap: Statement Equity Components
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ContractWithCustomerSalesChannel
(None,)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Contract With Customer Sales Channel
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ConsolidationItems, us-gaap:ContractWithCustomerSalesChannel, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None, 'ayi:AcuityBrandsLightingAndLightingControls')
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Consolidation Items, us-gaap: Contract With Customer Sales Channel, us-gaap: Statement Business Segments
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Consolidation Items, us-gaap: Statement Business Segments
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components
us-gaap:NoncurrentAssets
us-gaap:StatementGeographical
(None,)
Noncurrent Assetsus-gaap: Statement Geographical
us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType
(None,)
Property Plant And Equipment Grossus-gaap: Property Plant And Equipment By Type
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
(None, 'us-gaap:PensionPlansDefinedBenefit')
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrentus-gaap: Retirement Plan Sponsor Location, us-gaap: Retirement Plan Type
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components
us-gaap:DepreciationDepletionAndAmortization
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
Depreciation Depletion And Amortizationus-gaap: Consolidation Items, us-gaap: Statement Business Segments
us-gaap:DebtInstrumentInterestRateStatedPercentage
us-gaap:Range, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
(None, 'ayi:A2016FixedrateBankLoans', 'us-gaap:BankLoanObligations')
Debt Instrument Interest Rate Stated Percentageus-gaap: Range, us-gaap: Debt Instrument, us-gaap: Longterm Debt Type