AIT


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

Table of contents



us-gaap:CommonStockSharesOutstanding
us-gaap:StatementEquityComponents

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:CostOfGoodsAndServicesSold

us-gaap:GrossProfit

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeTaxExpenseBenefit

us-gaap:InterestIncomeExpenseNet

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:OperatingIncomeLoss
us-gaap:StatementBusinessSegments
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherNonoperatingIncomeExpense

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

us-gaap:Revenues

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:Assets
us-gaap:StatementBusinessSegments

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:AssetsCurrent

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:AccountsReceivableNetCurrent

us-gaap:InventoryNet

us-gaap:InventoryLIFOReserve

us-gaap:OtherAssetsCurrent

us-gaap:Land

us-gaap:NoncurrentAssets
us-gaap:StatementGeographical

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AmortizationOfIntangibleAssets
us-gaap:StatementBusinessSegments

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:Goodwill
us-gaap:ReportingUnit
us-gaap:StatementBusinessSegments

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:BusinessAcquisition
us-gaap:IntangibleAssetsNetIncludingGoodwill
us-gaap:BalanceSheetLocation
us-gaap:DeferredTaxAssetsLiabilitiesNet

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent

us-gaap:AccountsPayableCurrent

us-gaap:LiabilitiesCurrent

us-gaap:LongTermDebtCurrent
us-gaap:BalanceSheetLocation
us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OtherLiabilitiesCurrent
us-gaap:LongtermDebtType
us-gaap:LongTermDebt

us-gaap:LongTermDebtNoncurrent
us-gaap:BalanceSheetLocation
us-gaap:DeferredIncomeTaxLiabilitiesNet

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

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:TreasuryStockValue
us-gaap:AwardType, us-gaap:StatementEquityComponents
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:ShareBasedCompensation
us-gaap:AwardType

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquireProductiveAssets
us-gaap:StatementBusinessSegments

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:PaymentsOfDividendsCommonStock
us-gaap:BusinessAcquisition
us-gaap:DebtInstrumentInterestRateStatedPercentage
us-gaap:LongtermDebtType
us-gaap:Range, us-gaap:LongtermDebtType
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxAssetsNet

us-gaap:UnrecognizedTaxBenefits

us-gaap:DeferredTaxAssetsValuationAllowance
us-gaap:StatementGeographical

ait:ContractwithCustomerAssetPeriodIncreaseDecrease

ait:Corporateandotherexpenseincomenet

ait:OtherNet
us-gaap:AwardType, us-gaap:StatementEquityComponents
ait:ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesExercisesInPeriod

ait:UnrealizedGainLossesGainsOnAssetsHeldUnderTrustForANonqualifiedDeferredCompensationPlan
us-gaap:AwardType, us-gaap:StatementEquityComponents
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationConsiderationTransferred1

us-gaap:CommonStockDividendsPerShareCashPaid

us-gaap:DefinedBenefitPlanOtherCosts

us-gaap:Depreciation
us-gaap:StatementBusinessSegments
us-gaap:StatementEquityComponents
us-gaap:DividendsCommonStockCash

us-gaap:EffectOfExchangeRateOnCashAndCashEquivalents

us-gaap:FinitelivedIntangibleAssetsAcquired1
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax

us-gaap:GoodwillAndIntangibleAssetImpairment

us-gaap:GoodwillTranslationAndPurchaseAccountingAdjustments
us-gaap:StatementBusinessSegments

us-gaap:ImpairmentOfIntangibleAssetsExcludingGoodwill
us-gaap:StatementBusinessSegments

us-gaap:ImpairmentOfIntangibleAssetsFinitelived

us-gaap:IncreaseDecreaseInContractWithCustomerAsset

us-gaap:IncreaseDecreaseInOperatingCapital

us-gaap:InventoryLIFOReservePeriodCharge

us-gaap:LifeInsuranceCorporateOrBankOwnedChangeInValue

us-gaap:OperatingLeaseImpairmentLoss
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax

us-gaap:OtherComprehensiveIncomeLossBeforeTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome
us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax

us-gaap:OtherComprehensiveIncomeLossTax

us-gaap:OtherNoncashIncomeExpense

us-gaap:PaymentsForProceedsFromDerivativeInstrumentFinancingActivities

us-gaap:PaymentsOfDebtIssuanceCosts

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

us-gaap:ProceedsFromStockOptionsExercised
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome
us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
us-gaap:LongtermDebtType
us-gaap:RepaymentsOfDebt

us-gaap:RepaymentsOfOtherDebt

us-gaap:RepaymentsOfOtherLongTermDebt

us-gaap:RestrictedStockExpense
us-gaap:AwardType, us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures
us-gaap:AwardType, us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised
us-gaap:StatementEquityComponents
us-gaap:AwardType, us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures
us-gaap:AwardType, us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation
us-gaap:AwardType, us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised

us-gaap:StockOptionPlanExpense
us-gaap:StatementEquityComponents
us-gaap:StockholdersEquityOther
us-gaap:StatementEquityComponents
us-gaap:StockholdersEquityOtherShares
us-gaap:AwardType, us-gaap:StatementEquityComponents
us-gaap:StockholdersEquityPeriodIncreaseDecrease

us-gaap:TangibleAssetImpairmentCharges

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment

ait:DeferredTaxAssetsLeasingArrangements
us-gaap:BusinessAcquisition
ait:FundingfromHoldbackPayments
us-gaap:BusinessAcquisition, us-gaap:FairValueByLiabilityClass
us-gaap:FairValueByLiabilityClass

ait:InventoryPercentFromOneThousandNineHundredAndSeventysLifoLayers

ait:TreasurySharesRestrictedAsCollateralUnderEscrow

dei:EntityCommonStockSharesOutstanding

dei:EntityPublicFloat
us-gaap:StatementEquityComponents
us-gaap:AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax
us-gaap:StatementEquityComponents
us-gaap:AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax
us-gaap:StatementEquityComponents
us-gaap:AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:BuildingsAndImprovementsGross
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisitionPercentageOfVotingInterestsAcquired
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet

us-gaap:CashCashEquivalentsAndShortTermInvestments

us-gaap:ContractWithCustomerAssetNet

us-gaap:ContractWithCustomerRefundLiability

us-gaap:DebtInstrumentCarryingAmount
us-gaap:LongtermDebtType
us-gaap:DebtInstrumentFaceAmount

us-gaap:DebtLongtermAndShorttermCombinedAmount

us-gaap:DeferredFinanceCostsCurrentGross

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsHedgingTransactions

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsForeign

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals

us-gaap:DeferredTaxLiabilitiesDeferredExpenseCapitalizedInventoryCosts

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssets

us-gaap:DeferredTaxLiabilitiesLeasingArrangements

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree

us-gaap:DerivativeAmountOfHedgedItem

us-gaap:DerivativeFixedInterestRate

us-gaap:DerivativeVariableInterestRate

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
us-gaap:AwardType

us-gaap:FIFOInventoryAmount

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:StatementBusinessSegments
us-gaap:GoodwillImpairedAccumulatedImpairmentLoss

us-gaap:IncomeTaxExaminationPenaltiesAndInterestAccrued

us-gaap:InterestRateCashFlowHedgeLiabilityAtFairValue

us-gaap:InventoryGross
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:InvestmentsFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LettersOfCreditOutstandingAmount
us-gaap:CreditFacility
us-gaap:CreditFacility
us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
us-gaap:LongtermDebtType
us-gaap:LongTermDebtPercentageBearingFixedInterestRate
us-gaap:LongtermDebtType
us-gaap:LongTermDebtPercentageBearingVariableInterestRate

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLossCarryforwards
us-gaap:LongtermDebtType
us-gaap:PrincipalAmountOutstandingOnLoansSecuritized

us-gaap:PropertyPlantAndEquipmentOther

us-gaap:ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount
us-gaap:ReportingUnit
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
us-gaap:AwardType
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice
us-gaap:AwardType
us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1

us-gaap:TreasuryStockShares

us-gaap:UndistributedEarningsOfForeignSubsidiaries

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

us-gaap:WeightedAverageCostInventoryAmount

Plots across concepts


IncomeStatement
Other Comprehensive Income Loss Net Of Tax
Expenses
Other Nonoperating Income Expense
Balance Sheet
Operating Lease Right Of Use Asset
Assets
Operating Lease Right Of Use Asset
Current Assets
Other Assets Current
NonCurrent Assets
Other Assets Noncurrent
PropertyPlantAndEquipmentNet
Property Plant And Equipment Net
Liabilities
Operating Lease Liability
Current Liabilities
Long Term Debt Current
Noncurrent Liabilities
Other Liabilities Noncurrent
Stockholders Equity
Accumulated Other Comprehensive Income Loss Net Of Tax
Per Share
Common Stock Dividends Per Share Cash Paid
CashFlow
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInOperatingActivities
Share Based Compensation
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
Shares
Treasury Stock Shares
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Undiscounted Excess Amount
FiniteLivedIntangibleAssets
Finite Lived Intangible Assets Accumulated Amortization
AccountsReceivable
Allowance For Doubtful Accounts Receivable Current

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
us-gaap:CommonStockSharesOutstanding 38.516NANANA38.7138.70738.67838.65538.59738.59338.75838.75438.70338.69638.67438.81539.04139.0339.0139.03139.057NANANA39.905NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding NA39.41238.78139.088NA38.68239.04738.961NA39.03939.24739.364NA39.28639.20639.336NA39.46239.37139.382NA39.10739.48539.842NA41.06741.53341.829NA42.24242.46242.637NA42.5742.49442.477NA42.77942.63442.961NA43.33943.29843.086NA42.90242.83
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic NA38.83538.78138.722NA38.68238.64938.611NA38.64338.74338.714NA38.67438.71638.932NA38.99938.98539.044NA39.10739.26239.613NA40.841.22841.467NA41.8842.07642.157NA42.09842.05241.966NA42.10941.96542.397NA42.44642.41142.37NA42.32142.298
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount NANANA0.578NANA0.5030.74NA0.4670.2420.25NA0.0670.2340.293NANA0.2580.68NANA0.7020.802NA0.450.440.239NA0.3060.2720.272NA0.180.1710.221NA0.1120.2510.03NA0.1270.1020.451NANANA
us-gaap:EarningsPerShareBasic ██▅▇▇▁▇▇▇▆▇█▇▇▇▇█▇▆▆▆▃▆▆▆▆▆▆▆▆▆▆▇▆▆▆▇▆▆▆▆▆▆▆▆▆▆1.521.44-0.140.90.77-2.140.981.01.03000000000000020.431.01.261.040.950.80.871.350.760.620.70.66-1.140.610.610.69999999999999970.70.720.70.710.730.620.640.770.70.640.70.760.70.50.620.66999999999999970.630.50.490.660.390.25
us-gaap:EarningsPerShareDiluted ██▅▇▇▁▇▇▇▆▇█▇▇▇▇█▇▆▆▆▃▆▆▆▆▇▆▆▇▆▆▇▆▆▆▇▆▆▆▆▆▆▆▆▆▆1.51.42-0.140.890.77-2.140.971.01.020.420.991.241.02999999999999980.930.790.861.33999999999999990.750.610.70.66-1.140.610.610.690.70.720.70.710.720.610.630.75999999999999980.690.640.70.750.690.490.610.66000000000000010.610.490.480.650.390.24
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
 Operating Margin us-gaap:StatementBusinessSegments ait:FluidPowerFlowControlSegment█▅▂▂▂▄▄▄▄▄▃▄▆▁298.221268.045235.597234.523236.443256.429257.587253.244253.623255.005250.74260.466277.037226.451NANA118.474105.507NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:StatementBusinessSegments ait:ServiceCenterBasedDistributionSegment█▆▃▃▁▆▆█597.667572.892515.69513.284488.633574.368575.788603.16NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:StatementBusinessSegments us-gaap:OperatingSegmentsNANANA747.807NA830.797833.375856.404NA885.443840.038864.515NA827.665667.187680.701NANANA624.848NANANA641.904NANANA702.325NANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
 TTM Greenblatt ROC _ _██▄▇▇▁▇▇█▆▇▇█▇▆▇▇▆▆▆▆▃▆▆▇▆▆▆▆▆▆▆▇▆▆▆▇▆▆▆▆▆▆▆81.10174.467-2.42252.30847.028-77.9558.74561.16671.97534.50960.96566.33970.83156.44446.71551.83748.24945.46737.65643.21842.445-33.03238.36241.02647.87543.77246.80746.16544.80940.17339.83739.53948.03543.47740.56944.31849.77442.01933.33543.26744.61538.20133.05634.891NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
us-gaap:ComprehensiveIncomeNetOfTax ██▆▇▇▁▇▇▇▆▇█▇▇▆▇█▇▆▆▆▄▆▅▇▆▆▆▇▇▆▇▇▆▇▇▆▇▆▆▇▇▇▆65.02364.5569.22342.29336.066-120.72445.60433.55236.91114.17328.96154.28530.13936.20624.88641.87360.6737.70414.26625.11421.717-31.6117.274-3.17932.0972.54312.25410.03441.94326.6118.59927.47530.03823.99726.58238.6820.01735.44920.19823.48730.00333.74425.52718.592NANANA
us-gaap:CostOfGoodsAndServicesSold █▇▆▆▅▇▇▇██▇██▇▄▅▅▅▃▄▄▄▃▄▅▅▅▅▄▄▃▃▄▄▃▄▄▃▃▃▃▃▂▂▂▂▁632.904593.712541.753532.026516.786594.045592.141604.944625.392629.884597.178612.662634.034588.141478.827488.277485.364488.502435.667446.518455.556458.379437.179460.892485.734492.631495.989507.393472.09446.786418.566435.51459.371447.254426.598445.986447.327437.848414.928420.87420.718409.404385.236384.381370.054355.785329.348
us-gaap:GrossProfit █▇▅▆▅▇▇▇██▇▇█▇▄▅▅▅▄▄▄▄▄▄▅▄▅▅▄▄▃▄▄▄▃▃▄▃▃▃▃▃▂▂▃▂▁262.984247.225209.534215.781208.29236.752241.234251.46257.351255.559242.86251.853263.687239.524188.36192.424196.107190.802172.456178.33178.45174.793173.167181.012191.806187.363195.713194.932182.528171.22163.383169.795181.11174.4162.919164.533172.686167.613155.469158.704169.143156.566144.281143.12153.017130.356116.905
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments ██▄▇▇▁▇▇▇▆▇▇▇▇▇▇▇▇▆▇▇▃▆▆▇▇▇▇▇▇▇▇▇▇▇▇▇▇▆▇▇▇▆▆▇▆▆73.88268.516-10.16844.83240.079-85.32749.37751.10762.1225.81850.44156.10260.22149.51944.59650.38246.3843.34935.76741.4740.45-35.45636.14937.83544.60242.53844.47244.25944.86240.57240.25940.56947.53544.39740.98144.75249.13943.85232.54741.28844.96540.79433.01934.1144.71526.0617.512
us-gaap:IncomeTaxExpenseBenefit ▆▆▁▅▅▂▅▆█▅▅▄▇▆▆▇▁▆▅▆▆▅▆▆▇▆▆▆▆▅▆▆▆▆▆▆▇▆▅▆▇▆▅▆▇▅▄14.63812.453-4.83410.04810.09-2.5511.34612.30822.3179.28311.7247.16419.85912.92713.64616.661-6.5813.85511.68214.09914.3839.27212.20213.54416.55713.92814.76515.13715.18810.17814.3513.72515.26315.09513.93815.2217.09514.43411.61214.90616.6914.25811.82613.35517.0119.5357.025
us-gaap:InterestIncomeExpenseNet ▂▂▂▂▂▂▁▁▁▁▁▁▁▂▄▄▄▄▄▄▄▄▄▄▄▄▄▄▅▅▅▅▅▅▅▅▅▅▅▅▆▅▅▄█▄-7.673-7.608-7.658-7.653-8.088-8.805-9.583-10.059-10.187-9.947-9.578-10.476-10.964-8.216-2.139-2.166-2.13-2.165-2.1-2.146-2.059-2.359-2.158-2.187-2.131-2.121-1.955-1.662-0.3510.0110.152-0.061-0.018-0.107-0.015-0.0250.12-0.054-0.01-0.0473.302-0.052-0.458-1.1249.379-1.374NA
us-gaap:NetIncomeLoss ██▅▇▇▁▇▇▇▆▇▇▇▇▇▇█▇▆▆▆▃▆▆▆▆▇▇▇▇▆▆▇▇▆▇▇▇▆▆▆▆▆▆▆▆▆59.24456.063-5.33434.78429.989-82.77738.03138.79939.80316.53538.71748.93840.36236.59230.9533.72152.9629.49424.08527.37126.067-44.72823.94724.29128.04528.6129.70729.12229.67430.39425.90926.84432.27229.30227.04329.53232.04429.41820.93526.38228.27526.53621.19320.75527.70416.52510.487
us-gaap:OperatingIncomeLoss ██▄▇▇▁▇▇█▆▇▇█▇▆▇▇▆▆▆▆▃▆▆▇▆▆▆▆▆▆▆▇▆▆▆▇▆▆▆▆▆▆▆▆▆▅81.10174.467-2.42252.30847.028-77.9558.74561.16671.97534.50960.96566.33970.83156.44446.71551.83748.24945.46737.65643.21842.445-33.03238.36241.02647.87543.77246.80746.16544.80940.17339.83739.53948.03543.47740.56944.31849.77442.01933.33543.26744.61538.20133.05634.89146.46927.03718.903
 us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax us-gaap:StatementEquityComponents us-gaap:AccumulatedGainLossNetCashFlowHedgeParent▅█▅▅▅▁▅▄▃▃0.2248.8750.0732.019-0.099-9.6772.029-1.321-5.631-5.073NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax ▆▆█▇▇▁▇▅▆▆▄▇▄▆▅▇▇▇▄▅▅█▅▁▆▁▃▃▇▅▄▆▅▅▆▇▄▇4.818-0.43414.4335.4397.85-28.2575.556-3.9133.1232.767-9.6995.453-10.263-0.378-6.0678.1596.3858.132-9.93-2.349-3.19613.014-6.743-27.5164.535-26.105-17.558-19.10511.365-3.876-7.410.55-4.299-5.466-0.5949.001-9.2245.912NANANANANANANANANA
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▇▇█▇▇▁▇▅▆▆▅▇▅▆▅▇▇▇▅▆▅█▅▂▇▃▄▄█▆▅▆▆▅▆▇▄▇5.7798.49314.5577.5096.077-37.9477.573-5.247-2.892-2.362-9.7565.347-10.223-0.386-6.0648.1527.718.21-9.819-2.257-4.3513.118-6.673-27.474.052-26.067-17.453-19.08812.269-3.784-7.310.631-2.234-5.305-0.4619.148-12.0276.031NANANANANANANANANA
us-gaap:OtherNonoperatingIncomeExpense ▆▇▆▆▇▇▆▆▆▇▅▆▆▇▆▇▆▆▆▆▆▆▆▅▅▇▆▆▆▆▆▇▆▇▆▆▆▇▆▅▁█▆▆▅▆▆0.4541.657-0.0880.1771.1391.4280.2150.00.3321.256-0.9460.2390.3541.2910.020.7110.2610.0470.2110.3980.064-0.065-0.055-1.004-1.1420.887-0.38-0.2440.4040.3880.271.091-0.4821.0270.4270.459-0.7551.887-0.778-1.932-7.2022.6450.4210.343-1.0670.397-0.058
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ██████████████▇▇▇▇▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▁▇▇▇▁▇▇▇▇▇▇895.888840.937751.287747.807725.076830.797833.375856.404882.743885.443840.038864.515897.721827.665667.187680.701681.471679.3045.2645.2645.4535.5745.6665.9556.3276.1246.0635.5735.2455.3695.6815.5335.5995.8894.8033.735-1737.335605.461570.397579.574-1605.323565.97529.517527.501523.071486.141446.253
us-gaap:Revenues ██████████████▇▇▇▇▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▁▇▇▇▁▇▇▇▇▇▇895.888840.937751.287747.807725.076830.797833.375856.404882.743885.443840.038864.515897.721827.665667.187680.701681.471679.3045.2645.2645.4535.5745.6665.9556.3276.1246.0635.5735.2455.3695.6815.5335.5995.8894.8033.735-1737.335605.461570.397579.574-1605.323565.97529.517527.501523.071486.141446.253
us-gaap:SellingGeneralAndAdministrativeExpense ▇▇▆▆▆▇▇█▇█▇▇█▇▄▄▅▄▄▄▄▄▄▄▄▄▅▅▄▃▃▃▄▃▃▃▃▃▃▂▃▃▂▂▂▁▁181.883172.758162.428163.473161.262183.702182.489190.294185.376189.456181.895185.514192.856183.08141.645140.587147.858145.335134.8135.112136.005143.031134.805139.986143.931143.591148.906148.767137.719131.047123.546130.256133.075130.923122.35120.215122.912125.594122.134115.437124.528118.365111.225108.229106.548103.31998.002
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
us-gaap:Assets ▇▇▇▇▇▇████▇▇▇▇▄▃▃▃▃▃▃▃▃▃▄▄▄▄▃▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁2271.8072305.3882241.0172249.2532283.5512289.5292418.9972429.7322331.6972322.812289.9882305.6882285.7412272.3231405.8821384.9071387.5951346.6911294.5161299.4391312.5291334.3391350.3951376.261434.9681466.1531480.451468.9191334.1691096.6511074.1591050.0891058.7061035.9371037.6261001.767962.183954.336898.013900.227914.931891.858829.63872.709891.52NANA
us-gaap:Liabilities ▇▇▇▇██████▇███▃▃▃▃▃▃▃▃▃▃▄▄▄▃▃▁▁▁▁▁▁▁▁▁▁▁▁▁▁1339.2611370.4811360.311363.8471440.0091458.9691456.7561502.5071434.6631439.9621400.0731434.8821470.7781466.295626.62611.239642.339640.821613.107618.991654.613677.497642.828666.137693.64729.842698.784678.214533.861315.579300.68275.467299.091297.957315.514298.668290.052282.127251.827267.413281.368278.661240.389NA336.481NANA
us-gaap:LiabilitiesAndStockholdersEquity ▇▇▇▇▇▇████▇▇▇▇▄▃▃▃▃▃▃▃▃▃▄▄▄▄▃▂▂▂▂▂▂▂▂▂▁▁▁▁▁2271.8072305.3882241.0172249.2532283.5512289.5292418.9972429.7322331.6972322.812289.9882305.6882285.7412272.3231405.8821384.9071387.5951346.6911294.5161299.4391312.5291334.3391350.3951376.261434.9681466.1531480.451468.9191334.1691096.6511074.1591050.0891058.7061035.9371037.6261001.767962.183954.336898.013900.227914.931891.858829.63NA891.52NANA
us-gaap:StockholdersEquity ▇▇▆▇▆▆█▇▇▇▇▆▅▅▅▄▄▃▃▃▂▂▃▃▄▄▅▅▅▅▄▄▄▄▃▃▃▃▂▂▂▁▁932.546934.907880.707885.406843.542830.56962.241927.225897.034882.848889.915870.806814.963806.028779.262773.668745.256705.87681.409680.448657.916656.842707.567710.123741.328736.311781.666790.705800.308781.072773.479774.622759.615737.98722.112703.099672.131672.209646.186632.814633.563613.197589.241NA555.039NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
us-gaap:AssetsCurrent ██▇▇▇▇▇▇▇▇▇▇▆▆▅▄▅▄▄▃▄▄▄▄▄▅▅▄▄▃▃▃▃▃▃▃▂▂▂▂▂▂▁1196.5751226.3561151.5961136.3341159.7691162.5191142.5551144.9231148.1381125.771081.7831089.0831058.021051.24903.511876.879882.542836.111782.432777.361781.626803.841780.824813.906859.305886.017877.757874.76836.148774.511750.479733.736737.28702.881697.944687.095665.762649.0609.951605.213618.914592.483528.969NA618.86NANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▇██▇▇▄▃▃▃▁▂▂▂▁▂▂▃▂▂▂▂▂▂▂▂▂▁▁▂▂▂▂▂▁▁▂▂▂▂▂▂▂▂▃▅▄▃257.745304.016288.775271.06268.551165.464128.14998.204108.21947.36779.82756.40854.1543.52385.32477.769105.05767.31362.85758.02259.86162.93255.63463.96669.4755.16533.18452.03371.18969.08666.58476.87773.16443.08351.84556.67378.44279.40870.51273.21891.09288.55953.91594.593175.777156.266104.203
us-gaap:AccountsReceivableNetCurrent ▇▇▅▅▅▇▆▇▇█▇█▇▇▄▄▄▄▃▃▃▃▃▃▄▄▄▄▄▃▂▃▃▃▂▃▂▂▂▂▂▂▁516.322510.08444.2447.032449.998524.081502.894529.33540.902574.468512.034565.462548.811533.533393.706405.572390.931390.874336.716347.286347.857354.553329.287356.606376.305394.408385.326403.521375.732344.096305.936320.281329.88336.245304.628325.753307.043307.66280.7289.45290.751280.706250.671NA246.402NANA
us-gaap:InventoryNet ▅▅▅▅▆▇█████▇▇▇▆▅▅▅▅▅▅▅▅▅▅▆▆▅▅▄▄▄▃▃▄▃▂▂▂▂▁▁▁362.547358.237363.757365.355389.15421.201463.609465.165447.555454.555445.881431.658422.069432.449386.943364.979345.145344.743349.02342.044338.221346.979359.726350.807362.419381.085401.474367.291335.747320.045323.257302.404281.417281.198294.651268.96228.506230.035222.626215.013204.066196.427194.991NA173.253NANA
us-gaap:InventoryLIFOReserve 151.854NANANA155.511NANANA151.654NANANA139.163NANANA137.573NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsCurrent █▇▇▇▆▆▅▆▆▆▅▃▂▄▃▁▄▂▂▂▃▄▃▄▆▇█▆▇▄▇▃▆▄▅▃▆▂▃▁▂▁▂59.96154.02354.86452.88752.0751.77347.90352.22451.46249.3844.04135.55532.9941.73537.53828.55941.40933.18133.83930.00935.68739.37736.17742.52751.11155.35957.77351.91553.4841.28454.70234.17452.81942.35546.8235.70951.77131.89736.11327.53233.00526.79129.392NA23.428NANA
us-gaap:Land 14.399NANANA14.339NANANA14.452NANANA14.411NANANA14.25NANANA14.214NANANA12.95NANANA13.212NANANA10.125NANANA10.245NANANA10.428NANANA10.569NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
us-gaap:NoncurrentAssets 202.7NANANA555.752NANANA493.169NANANA557.29NANANA271.631NANANA299.005NANANA303.275NANANA456.598NANANA281.359NANANA251.023NANANA235.546NANANANANANA
us-gaap:PropertyPlantAndEquipmentGross 319.915NANANA313.955NANANA305.369NANANA296.643NANANA274.211NANANA269.231NANANA268.79NANANA260.468NANANA240.749NANANA231.726NANANA212.944NANANA197.261NANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment ██▇▇▇▆▆▆▅▅▆▅▅▄▄▄▄▄▄▄▃▃▄▄▄▃▃▃▃▃▄▃▃▃▃▂▂▂▂▁▁▁▁204.326200.039198.572197.143192.054187.292188.97184.989181.066177.383182.812179.972175.3172.263171.604170.163166.143165.956164.742163.245161.466162.425168.344166.06164.343160.619163.007160.063156.872157.454163.179160.592157.506155.533155.455152.184148.623147.944146.132144.532143.93142.445140.278NA138.79NANA
us-gaap:AmortizationOfIntangibleAssets ▆▆▆▇▇█▇▇▇▇███▇▄▄▄▄▄▄▄▄▄▄▄▄▄▄▃▂▁▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁8.1278.2368.2769.7269.88211.10210.19510.37410.069.91110.99110.92110.7399.85.6955.8315.9846.0566.0946.2376.5156.746.2426.0836.3856.3536.5686.4914.5053.1883.0813.2493.5173.5093.1523.0553.012.9112.7352.8092.9142.792.8912.7872.5962.508NA
us-gaap:PropertyPlantAndEquipmentNet ▇▇▇▇▇█████▇▇▇▇▆▆▆▆▆▆▆▆▆▅▅▅▆▆▅▂▃▃▃▃▃▃▃▂▂▂▁▁▁115.589116.951120.53120.285121.901123.77126.248125.094124.303123.24122.005119.781121.343121.858111.962111.313108.068106.773105.279106.283107.765108.132106.47104.76104.447104.68107.352106.683103.59678.83480.05681.14983.24384.35585.59684.35783.10378.46476.65973.07969.01467.94967.357NA58.471NANA
us-gaap:Goodwill ▇▇▇▆▆▆███████▇▃▃▃▃▃▃▂▂▃▃▃▃▃▃▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁560.077559.196557.257541.357540.594539.495673.175671.476661.991661.195651.206647.529646.643629.783209.001209.834206.135205.341203.963205.537202.7199.236249.267248.58254.406252.717260.256259.156193.494111.201111.356106.973106.849108.06105.02694.62683.0884.6975.51776.78376.98175.60574.587NA63.405NANA
us-gaap:IntangibleAssetsNetExcludingGoodwill ▅▅▅▆▆▆▆▇▆▇▇███▂▂▃▃▃▃▃▃▃▃▃▃▄▃▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁279.628287.686294.581333.613343.215352.864364.519374.871368.866378.844413.093425.801435.947448.089153.432159.848163.562168.404173.46181.465191.24195.726185.009191.708198.828203.978216.305208.497159.50888.36891.66987.96191.26795.215100.91490.08784.8488.76882.96886.66189.55190.32493.389NA85.916NANA
us-gaap:FiniteLivedIntangibleAssetsNet ▅▅▅▆▆▆▆▇▆▇▇███▂▂▃▃▃▃▃▃▃▃▃▃▄▃▂▁▁▁▁▁▁▁▁▁▁▁▁279.628287.686294.581333.613343.215352.864364.519374.871368.866378.844413.093425.801435.947448.089153.432159.848163.562168.404173.46181.465191.24195.726185.009191.708198.828203.973216.305208.497159.50888.36891.66987.96191.26795.21599.62488.79783.5587.47881.67885.37188.261NANANA85.916NANA
 us-gaap:IntangibleAssetsNetIncludingGoodwill us-gaap:BusinessAcquisition ait:AdvancedControlSolutions16.657NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:IntangibleAssetsNetIncludingGoodwill us-gaap:BusinessAcquisition ait:GibsonEngineeringNANA11.54NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DeferredTaxAssetsLiabilitiesNet us-gaap:BalanceSheetLocation us-gaap:OtherAssets6.373NANANA4.749NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OperatingLeaseRightOfUseAsset █▇██████▁87.11184.06286.97789.62290.63686.61785.41886.5570.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent █▇▇▆▅▄▅▅▆█▃▄▄▃▂▂▂▂▁▁▁▁▁▁▂▂▂▂▃▃▃▂▂▂▃▂▂▂▁▁▁▂▂32.82731.13730.07628.04227.43624.26427.08226.81128.39933.76121.90123.49423.78821.35318.43317.79118.30317.4116.95816.99116.92117.29516.88717.21617.88518.27118.52519.56320.25719.94520.13619.70219.04119.01921.93719.53318.97418.66216.31416.05417.02417.87417.771NA16.375NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
us-gaap:AccountsPayableCurrent ▆▆▆▅▅▆▆▇▇▇▇▇█▆▄▄▅▄▃▄▄▃▂▃▅▃▄▃▅▃▃▃▃▃▃▃▂▃▂▂▂▂▁208.162217.252196.468181.627186.27214.253212.312229.368237.289240.339232.558241.885256.886217.852165.634165.233180.614150.255137.499149.007148.543134.871114.824142.636179.825143.881150.938145.614172.401145.352140.869131.195136.575140.865123.796145.932120.89124.614105.591109.928108.509110.14386.957NA94.529NANA
us-gaap:LiabilitiesCurrent ▇█▇▇▇▇▇█▇▇▆▆▇▆▃▃▄▃▂▃▃▃▂▃▄▃▃▃▄▃▃▂▃▃▃▃▂▂▂▂▂▂▁427.7465.746425.867414.051426.083447.861420.701478.722423.794416.557393.788394.173432.551369.964271.627280.26309.753270.565237.222264.301274.388252.475221.374258.297310.072269.067271.651271.982290.955268.223250.854225.575245.9240.79255.494242.007230.169225.695198.964206.953214.688208.643172.14NA271.332NANA
us-gaap:LongTermDebtCurrent ▄▇▇▇▇▇▆█▅▄▄▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁43.52578.64478.63878.65178.64678.64273.77193.91249.03644.16344.18419.18419.18319.1826.3785.5954.8144.0123.2483.2483.3523.3513.353.9753.3492.722.722.8422.72NANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingLeaseLiabilityCurrent us-gaap:BalanceSheetLocation us-gaap:OtherCurrentLiabilities27.359NANANA27.231NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesCurrent █▇▆▇█▆▅▇▄▄▃▅▆▄▂▃▄▃▂▄▄▄▄▄▄▄▄▅▃▂▂▂▂▂▂▂▂▁▁▂▁▁▁98.35689.1983.50888.60599.2885.91577.84691.46969.49162.73160.16470.10983.11264.93650.88959.65865.5458.68352.04865.71965.30662.85262.8968.2263.11868.45663.85475.83960.07446.02246.21649.00745.42645.88145.76349.7246.1344.84741.44352.58240.76643.49343.049NA51.696NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
 us-gaap:LongTermDebt us-gaap:LongtermDebtType ait:PrudentialFacility▁▄▄▄█90.0130.0130.0130.0170.0NANANANANANANANA170.0170.0170.0NA170.0170.0170.0NA170.0170.0170.0NA170.0170.0120.0NANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:LongtermDebtType ait:PrudentialFacilitySeriesC▁▄▄▄█████████████40.080.080.080.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0NANA120.0120.0NANA120.0120.0NANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:LongtermDebtType ait:PrudentialFacilitySeriesD▁▁▁▁▁▁███████████25.025.025.025.025.025.050.050.050.050.050.050.050.050.050.050.050.0NANA50.050.0NANA50.050.0NANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:LongtermDebtType ait:PrudentialFacilitySeriesE25.0NANANA25.0NANANA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:LongtermDebtType ait:StateofOhioAssumedDebt▁▁▂▂▂▂▂▂▃▃▃▄▄▄▄▅▅▅▅▆▆▆▆▇▇▇▇██0.8460.9060.9661.0261.0261.0261.0861.1451.2041.2631.3221.381.4381.4961.5541.6121.6691.7261.7641.841.8961.9522.0092.0652.122.22.22.32.337NANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:LongtermDebtType us-gaap:LongTermDebt▆▆▆▆▆▆▆▆▆▆▆▆██▁▁▁▁▁▁▁550.25560.0569.75579.5589.25599.0603.875608.75613.625618.5623.375628.25775.125780.0118.75119.531120.313121.094121.875122.656123.438NANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LongTermDebtNoncurrent ▆▆▆▆▇▇▇▇▇▇▇▇▇█▂▂▂▂▂▂▂▃▃▃▂▃▂▂▁784.855773.404783.076792.827855.143864.758874.423859.172908.85937.536923.41953.216944.5221017.327306.579285.175286.769317.382323.94301.771324.982367.82363.64351.34317.646386.956346.636321.418167.992NANANANANANANANANANANANANANANANANANA
 us-gaap:DeferredIncomeTaxLiabilitiesNet us-gaap:BalanceSheetLocation us-gaap:OtherLiabilities19.26NANANA42.896NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesNoncurrent ▆▆▇██▇██▅▄▄▄▄▃▂▂▂▂▂▂▂▂▂▂▂▃▃▃▃▁▁▁▁▁▁▁▁▁▁▁▁▁▁126.706131.331151.367156.969158.783146.35161.632164.613102.01977.49773.67578.28181.7265.76934.39230.20129.10232.64831.34231.62933.92137.9238.19536.87746.29555.00561.43965.74151.30322.15924.42124.55222.27222.24324.98221.72120.13321.15816.62516.54918.9520.24118.878NA16.589NANA
 us-gaap:OperatingLeaseLiabilityNoncurrent us-gaap:BalanceSheetLocation us-gaap:OtherLiabilities64.248NANANA67.926NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo 22.982NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree 17.896NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour 10.462NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive 6.547NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive 11.41NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
us-gaap:StockholdersEquity ▇▇▆▇▆▆█▇▇▇▇▆▅▅▅▄▄▃▃▃▂▂▃▃▄▄▅▅▅▅▄▄▄▄▃▃▃▃▂▂▂▁▁932.546934.907880.707885.406843.542830.56962.241927.225897.034882.848889.915870.806814.963806.028779.262773.668745.256705.87681.409680.448657.916656.842707.567710.123741.328736.311781.666790.705800.308781.072773.479774.622759.615737.98722.112703.099672.131672.209646.186632.814633.563613.197589.241NA555.039NANA
us-gaap:AdditionalPaidInCapitalCommonStock ██▇██▇▇▇▇▇▆▆▆▆▅▅▅▅▅▅▅▄▄▄▄▄▄▄▃▃▃▃▃▂▂▂▂▂▂▂▁▁▁177.014177.231175.016176.007176.492174.83173.677172.223172.931171.734170.385168.618169.383167.848166.008164.998164.655163.448162.639162.518162.529161.735160.668160.407160.072158.923158.623158.001156.999156.495155.299154.492153.893152.676151.508150.9150.07149.943151.704150.153148.307148.112146.804NA143.185NANA
us-gaap:RetainedEarningsAccumulatedDeficit ██▇▇▇▇██▇▇▇▇▆▆▆▆▅▅▅▅▄▄▅▅▅▄▄▄▄▄▃▃▃▃▃▂▂▂▂▂▁▁▁1294.4131260.7611217.5821235.3511200.571195.4111290.6851264.6481229.1481213.3141208.7481181.6831129.6781112.1361087.1561067.4731033.7511003.48985.297972.174944.821940.696996.392983.072969.548952.355934.821915.482896.776877.547857.638841.448824.362801.812782.236764.045743.36720.202699.612686.687668.421648.232628.912NA601.37NANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▃▃▂▂▁▁▃▂▃▃▃▃▃▄▄▄▄▃▃▃▃▄▃▃▅▄▆▇█▇▇▇▇███▇█████▇-93.092-98.871-107.364-121.921-129.43-135.507-97.56-105.133-99.886-96.994-94.632-84.876-90.223-80.0-79.614-73.55-81.702-89.412-97.622-87.803-85.546-81.196-94.314-87.641-60.171-64.223-38.156-20.703-1.615-13.884-10.1-2.79-3.421-1.1864.1194.579-4.5697.4581.4272.1645.0593.331-3.877NA-6.048NANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedOtherComprehensiveIncome▅▄▄▂▂▁▅▄▄▅▅▆▅▆▆▇▆▅▅▅▆▆▅▅█-93.092-98.871-107.364-121.921-129.43-135.507-97.56-105.133-99.886-96.994-94.632-84.876-90.223-80.0-79.614-73.55-81.702-89.412-97.622-87.803-85.546-81.196-94.314-87.641-60.171NANANA-1.615NANANANANANANANANANANANANANANANANANA
us-gaap:TreasuryStockValue █▇▇▇▇▇▇▇▇▇▇▇▇▇▇▆▆▆▆▆▆▆▆▅▅▄▃▃▃▃▂▂▂▂▂▂▂▂▂▂▁▁▁455.789414.214414.527414.031414.09414.174414.561414.513415.159415.206404.586404.619403.875403.956404.288395.253381.448381.646378.905376.441373.888374.393365.179355.715338.121320.744283.622272.075261.852249.086239.358228.528225.219225.322225.751226.425226.73215.394216.557216.19198.224196.478192.598NA193.468NANA
 us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:AwardType,us-gaap:StatementEquityComponents ait:StockOptionsAndStockAppreciationRights,us-gaap:AdditionalPaidInCapitalNA0.6020.6350.693NA0.7230.7210.773NA0.5740.6060.651NA0.4660.4360.577NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:AwardType,us-gaap:StatementEquityComponents ait:StockOptionsAndStockAppreciationRights,us-gaap:ParentNA0.6020.6350.693NA0.7230.7210.773NA0.5740.6060.651NA0.4660.4360.577NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents us-gaap:AdditionalPaidInCapitalNA2.4931.490.677NA0.2090.9180.919NA1.3651.3081.043NA1.9040.7990.778NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents us-gaap:ParentNA2.4931.490.677NA0.2090.9180.919NA1.3651.3081.043NA1.9040.7990.778NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▄▄▆▆█▅▅▄▇▂▄▂▇▃▂▂▆▃▂▄▅▅▃▃▇▄▃▁▅▂▃▃▄▄▂▃▃▃▃▃▂▄▃▂▃▅38.28844.05377.51481.842127.0964.72554.88150.018103.43511.58653.78311.79799.42626.69411.7449.4486.11332.8483.79441.86470.63357.41618.35514.588115.22638.13919.274-18.10165.78411.66315.70716.95642.34140.174.93923.94728.45131.75513.81516.40112.8644.01615.454.51628.30460.357NA
us-gaap:NetCashProvidedByUsedInInvestingActivities █████████████▁█████████████▇▆█████████████████-3.421-2.274-35.831-3.404-3.753-3.621-7.469-40.561-6.905-34.836-10.265-3.096-2.573-779.455-4.811-11.067-5.053-7.779-2.81-1.252-9.82-36.418-14.544-14.2493.416-3.772-40.358-132.907-180.493-2.342-19.414-1.388-2.135-4.221-33.411-39.058-8.051-17.101-6.536-7.746-6.5030.035-12.89-28.529-2.964-1.19NA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▁▂▂▁▂▂▂▂▂▂▂▂▁█▂▂▂▂▂▂▁▂▂▂▁▂▂▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▂▂-82.503-26.28-27.071-77.183-22.279-19.638-17.447-18.874-36.069-9.549-19.046-6.875-84.651710.581.657-27.302-44.596-21.7325.131-42.152-62.886-15.656-11.145-2.298-103.008-9.0953.49133.302115.299-5.97-5.35-11.837-9.197-44.20423.799-8.423-19.474-6.998-8.3-26.044-4.358-11.107-44.387-56.671-5.978-7.293NA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▁▄▄▃█▅▅▃▆-46.27115.24117.7152.509103.08737.31529.945-10.01560.852NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▄▄▆▆█▅▅▄▇▂▄▂▇▃▂▂▆▃▂▄▅▅▃▃▇▄▃▁▅▂▃▃▄▄▂▃▃▃▃▃▂▄▃▂▃▅38.28844.05377.51481.842127.0964.72554.88150.018103.43511.58653.78311.79799.42626.69411.7449.4486.11332.8483.79441.86470.63357.41618.35514.588115.22638.13919.274-18.10165.78411.66315.70716.95642.34140.174.93923.94728.45131.75513.81516.40112.8644.01615.454.51628.30460.357NA
us-gaap:NetIncomeLoss ██▅▇▇▁▇▇▇▆▇▇▇▇▇▇█▇▆▆▆▃▆▆▆▆▇▇▇▇▆▆▇▇▆▇▇▇▆▆▆▆▆▆▆▆▆59.24456.063-5.33434.78429.989-82.77738.03138.79939.80316.53538.71748.93840.36236.59230.9533.72152.9629.49424.08527.37126.067-44.72823.94724.29128.04528.6129.70729.12229.67430.39425.90926.84432.27229.30227.04329.53232.04429.41820.93526.38228.27526.53621.19320.75527.70416.52510.487
us-gaap:ShareBasedCompensation NANANA0.6771.9540.2090.9180.9190.7581.3651.3081.0431.1851.9040.7990.7780.7931.5580.7230.5550.4511.1190.3260.628NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:ShareBasedCompensation us-gaap:AwardType us-gaap:StockAppreciationRightsSARSNANANA0.693NANANA0.773NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
us-gaap:NetCashProvidedByUsedInInvestingActivities █████████████▁█████████████▇▆█████████████████-3.421-2.274-35.831-3.404-3.753-3.621-7.469-40.561-6.905-34.836-10.265-3.096-2.573-779.455-4.811-11.067-5.053-7.779-2.81-1.252-9.82-36.418-14.544-14.2493.416-3.772-40.358-132.907-180.493-2.342-19.414-1.388-2.135-4.221-33.411-39.058-8.051-17.101-6.536-7.746-6.5030.035-12.89-28.529-2.964-1.19NA
us-gaap:PaymentsToAcquireProductiveAssets ▃▃▃▂▃▃▄▃▄▃▃▂▃▄▃▄▃▃▃▂▃▃▂▂▃▂▃▂█▂▂▁▂▂▂▃▅▃▄▄▃▂█▁3.6753.7284.8523.5973.8924.2587.0194.9467.2594.6153.9233.1735.3326.4395.1246.3365.2585.0773.7112.9993.6893.7042.6253.1123.9243.2034.7063.113.6982.3662.5551.5712.3782.9932.9513.8927.7264.2736.887.1423.9852.64312.9310.873NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▁▂▂▁▂▂▂▂▂▂▂▂▁█▂▂▂▂▂▂▁▂▂▂▁▂▂▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▂▂-82.503-26.28-27.071-77.183-22.279-19.638-17.447-18.874-36.069-9.549-19.046-6.875-84.651710.581.657-27.302-44.596-21.7325.131-42.152-62.886-15.656-11.145-2.298-103.008-9.0953.49133.302115.299-5.97-5.35-11.837-9.197-44.20423.799-8.423-19.474-6.998-8.3-26.044-4.358-11.107-44.387-56.671-5.978-7.293NA
us-gaap:PaymentsOfDividendsCommonStock ███▇█▇▇▇▇▇▇▆▇▇▆▆▆▆▆▆▆▆▆▆▆▆▅▅▅▅▅▅▅▅▄▄▄▄▃▃▃▂▂▂▁▁12.89212.87312.48412.41512.45312.41812.01711.98512.01211.97911.94111.33411.66811.61911.24411.32711.38311.34310.9510.94310.98810.97310.62410.74510.85611.06510.3410.40210.44910.499.7259.7469.7269.7318.878.8678.8618.8627.9788.0998.1027.2277.2167.2066.3626.355NA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:BusinessAcquisition ait:GibsonEngineeringNANA1e-06NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:BusinessAcquisition ait:MilRocMemberDomain2e-06NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:LongtermDebtType us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivables▄▄9.8e-079.8e-07NANANANANANA9e-09NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:Range,us-gaap:LongtermDebtType srt:Maximum,ait:PrudentialFacility▄▄▄▄1.25e-061.25e-061.25e-061.25e-06NA1.2500000000000001e-081.2500000000000001e-081.2500000000000001e-081.2500000000000001e-08NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:Range,us-gaap:LongtermDebtType srt:Minimum,ait:PrudentialFacility▄▄▄▄2.5e-072.5e-072.5e-072.5e-07NA2.5e-092.5e-092.5e-092.5e-09NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStockSharesOutstanding


Common
Period End2021-06-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-06-30
Value38383838383838383838383838393939393939
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStockSharesOutstanding us-gaap:StatementEquityComponents

us-gaap:CommonStock


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-302010-06-302009-06-302008-06-30
Value3838383838383838383838383838383839393941424142424242
Percentage of CommonStockSharesOutstanding100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-03-312020-12-312020-09-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-03-312017-12-312017-09-302017-03-312016-12-312016-09-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-03-312011-12-312011-09-302011-03-312010-12-312010-09-302010-03-312009-12-31
Value3938393839383939393939393939393939394141414242424242424242424343434242
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-03-312020-12-312020-09-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-03-312017-12-312017-09-302017-03-312016-12-312016-09-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-03-312011-12-312011-09-302011-03-312010-12-312010-09-302010-03-312009-12-31
Value3838383838383838383838383838393939394041414142424242414241424242424242
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


Antidilutive
Period End2020-09-302019-12-312019-09-302019-03-312018-12-312018-09-302018-03-312017-12-312017-09-302016-12-312016-09-302015-12-312015-09-302015-03-312014-12-312014-09-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-03-312011-12-312011-09-302011-03-312010-12-312010-09-30
Value578000.0503000.0740000.0467000.0242000.0250000.067000.0234000.0293000.0258000.0680000.0702000.0802000.0450000.0440000.0239000.0306000.0272000.0272000.0180000.0171000.0221000.0112000.0251000.030000.0127000.0102000.0451000.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value1.521.44-0.140.90.77-2.140.981.01.030.431.01.261.040.950.80.871.350.760.620.70.66-1.140.610.610.70.70.720.70.710.730.620.640.770.70.640.70.760.70.50.620.670.630.50.490.660.390.25
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value1.51.42-0.140.890.77-2.140.971.01.020.420.991.241.030.930.790.861.340.750.610.70.66-1.140.610.610.690.70.720.70.710.720.610.630.760.690.640.70.750.690.490.610.660.610.490.480.650.390.24
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value65649.2234236-120.724453336142854303624416037142521-31.6117-3.179322.543121041261827302326382035202330332518
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.07.71.25.70.0-14.55.53.90.01.63.46.30.04.43.76.20.05.6271.0477.10.0-567.1304.9-53.40.041.5202.1180.00.0495.6327.4496.60.0407.5553.41035.60.05.93.54.10.06.04.83.5

Cost Of Goods And Services Sold

us-gaap:CostOfGoodsAndServicesSold

us-gaap:CostOfGoodsAndServicesSold


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value632593541532516594592604625629597612634588478488485488435446455458437460485492495507472446418435459447426445447437414420420409385384370355329
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.070.672.171.10.071.571.170.60.071.171.170.90.071.171.871.70.071.98276.38482.50.08223.57715.87739.60.08044.38180.69104.50.08321.67367.87871.10.07594.78881.911940.70.072.372.772.60.072.372.872.90.073.273.8

Gross Profit

us-gaap:GrossProfit

us-gaap:GrossProfit


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value262247209215208236241251257255242251263239188192196190172178178174173181191187195194182171163169181174162164172167155158169156144143153130116
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 RevenueFromContractWithCustomerExcludingAssessedTax0.029.427.928.90.028.528.929.40.028.928.929.10.028.928.228.30.028.13276.13387.70.03135.93056.23039.70.03059.53228.03497.80.03189.02876.03068.80.02961.53392.04405.20.027.727.327.40.027.727.227.10.026.826.2

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 End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value7368-10.1684440-85.327495162255056604944504643354140-35.45636374442444444404040474440444943324144403334442617
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 RevenueFromContractWithCustomerExcludingAssessedTax0.08.1-1.46.00.0-10.35.96.00.02.96.06.50.06.06.77.40.06.4679.5787.80.0-636.1638.0635.30.0694.6733.5794.20.0755.7708.7733.20.0753.9853.21198.20.07.25.77.10.07.26.26.50.05.43.9

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value1412-4.8341010-2.551112229.283117.16419121316-6.58131114149.27212131613141515101413151513151714111416141113179.5357.025
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 RevenueFromContractWithCustomerExcludingAssessedTax0.01.5-0.61.30.0-0.31.41.40.01.01.40.80.01.62.02.40.02.0221.9267.80.0166.3215.4227.40.0227.4243.5271.60.0189.6252.6248.10.0256.3290.2407.50.02.42.02.60.02.52.22.50.02.01.6

Interest Income Expense Net

us-gaap:InterestIncomeExpenseNet

us-gaap:InterestIncomeExpenseNet


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-7673000.0-7608000.0-7658000.0-7653000.0-8088000.0-8805000.0-9583000.0-10059000.0-10187000.0-9947000.0-9578000.0-10476000.0-10964000.0-8216000.0-2139000.0-2166000.0-2130000.0-2165000.0-2100000.0-2146000.0-2059000.0-2359000.0-2158000.0-2187000.0-2131000.0-2121000.0-1955000.0-1662000.0-351000.011000.0152000.0-61000.0-18000.0-107000.0-15000.0-25000.0120000.0-54000.0-10000.0-47000.03302000.0-52000.0-458000.0-1124000.09379000.0-1374000.0
Percentage of InterestIncomeExpenseNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0-0.9-1.0-1.00.0-1.1-1.1-1.20.0-1.1-1.1-1.20.0-1.0-0.3-0.30.0-0.3-39.9-40.80.0-42.3-38.1-36.70.0-34.6-32.2-29.80.00.22.7-1.10.0-1.8-0.3-0.70.0-0.0-0.0-0.00.0-0.0-0.1-0.20.0-0.3

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value5956-5.3343429-82.777383839163848403630335229242726-44.72823242828292929302526322927293229202628262120271610
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 RevenueFromContractWithCustomerExcludingAssessedTax0.06.7-0.74.70.0-10.04.64.50.01.94.65.70.04.44.65.00.04.3457.5520.00.0-802.4422.6407.90.0467.2490.0522.60.0566.1456.1485.20.0497.6563.0790.70.04.93.74.60.04.74.03.90.03.42.4

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:Parent


Net
Period End2021-03-312020-12-312020-09-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-03-312017-12-312017-09-30
Value56-5.33434-82.7773838163848363033
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.7-0.74.7-10.04.64.51.94.65.74.44.65.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.0

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value8174-2.4225247-77.95586171346066705646514845374342-33.03238414743464644403939484340444942334344383334462718
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 RevenueFromContractWithCustomerExcludingAssessedTax0.08.9-0.37.00.0-9.47.07.10.03.97.37.70.06.87.07.60.06.7715.3821.00.0-592.6677.1688.90.0714.8772.0828.40.0748.2701.2714.60.0738.3844.71186.60.06.95.87.50.06.76.26.60.05.64.2

us-gaap:OperatingIncomeLoss us-gaap:StatementBusinessSegments

ait:FluidPowerFlowControlSegment


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-31
Value38302625272629262625293029261412
Percentage of OperatingIncomeLoss47.441.4-1100.249.457.6-33.950.143.936.374.948.046.541.647.129.327.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.03.73.53.50.03.23.53.10.02.93.53.60.03.20.01.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ait:FluidPowerFlowControlSegment0.011.511.311.00.010.311.410.60.010.111.711.90.011.70.011.6

ait:ReportableSegmentsTotal


Operating
Period End2021-03-312020-12-312020-03-312019-12-31
Value96697983
Percentage of OperatingIncomeLoss129.4-2861.3-101.9141.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.59.29.610.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ait:ReportableSegmentsTotal0.00.00.00.0

ait:ServiceCenterBasedDistributionSegment


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value6765424944535360
Percentage of OperatingIncomeLoss82.788.0-1761.195.494.4-68.091.898.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.07.85.76.70.06.46.57.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ait:ServiceCenterBasedDistributionSegment0.011.48.39.70.09.29.410.0

us-gaap:OperatingSegments


Operating
Period End2020-09-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-03-312017-12-312017-09-302017-03-312016-12-312016-09-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-03-312011-12-312011-09-302011-03-312010-12-312010-09-30
Value75798387908793744347483137323740454650423537443644463940433535
Percentage of OperatingIncomeLoss144.8-101.9141.9142.6262.5143.6141.2132.593.890.7106.384.486.7-97.496.898.1104.0100.0109.3105.090.295.7103.491.299.9110.4118.393.9113.9106.4101.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.19.610.010.210.210.410.89.06.66.97.1603.9711.9577.1655.6675.8743.6772.0905.6785.9632.5683.7763.5770.01184.97.76.97.07.76.66.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments10.19.610.010.210.210.410.89.06.66.90.00.06.00.00.06.30.00.07.20.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.2248.8750.0732.019-0.099-9.6772.029-1.321-5.631-5.073
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.01.10.00.30.0-1.20.2-0.20.0-0.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.0

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

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value4.818-0.434145.4397.85-28.2575.556-3.9133.1232.767-9.6995.453-10.263-0.378-6.0678.1596.3858.132-9.93-2.349-3.19613-6.743-27.5164.535-26.105-17.558-19.10511-3.876-7.410.55-4.299-5.466-0.5949.001-9.2245.912
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0-0.11.90.70.0-3.40.7-0.50.00.3-1.20.60.0-0.0-0.91.20.01.2-188.6-44.60.0233.5-119.0-462.10.0-426.3-289.6-342.80.0-72.2-130.49.90.0-92.8-12.4241.00.01.0

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedTranslationAdjustment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value4.818-0.434145.4397.85-28.2575.556-3.9133.1232.767-9.6995.453-10.241-0.378-6.0678.1596.3858.132-9.93-2.349-3.19613-6.743-27.516
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.099.8100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0-0.11.90.70.0-3.40.7-0.50.00.3-1.20.60.0-0.0-0.91.20.01.2-188.6-44.60.0233.5-119.0-462.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value5.7798.493147.5096.077-37.9477.573-5.247-2.892-2.362-9.7565.347-10.223-0.386-6.0648.1527.718.21-9.819-2.257-4.3513-6.673-27.474.052-26.067-17.453-19.08812-3.784-7.310.631-2.234-5.305-0.4619.148-12.0276.031
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.01.01.91.00.0-4.60.9-0.60.0-0.3-1.20.60.0-0.0-0.91.20.01.2-186.5-42.90.0235.3-117.8-461.30.0-425.7-287.9-342.50.0-70.5-128.711.40.0-90.1-9.6244.90.01.0

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value5.7798.493147.5096.077-37.9477.573-5.247-2.892-2.362-9.7565.347-10.223-0.386-6.0648.1527.718.21-9.819-2.257-4.3513-6.673-27.47
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.01.01.91.00.0-4.60.9-0.60.0-0.3-1.20.60.0-0.0-0.91.20.01.2-186.5-42.90.0235.3-117.8-461.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Other
Period End2021-03-312020-12-312020-09-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-03-312017-12-312017-09-30
Value8.493147.509-37.9477.573-5.247-2.362-9.7565.347-0.386-6.0648.152
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.01.91.0-4.60.9-0.6-0.3-1.20.6-0.0-0.91.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.0

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value454000.01657000.0-88000.0177000.01139000.01428000.0215000.00332000.01256000.0-946000.0239000.0354000.01291000.020000.0711000.0261000.047000.0211000.0398000.064000.0-65000.0-55000.0-1004000.0-1142000.0887000.0-380000.0-244000.0404000.0388000.0270000.01091000.0-482000.01027000.0427000.0459000.0-755000.01887000.0-778000.0-1932000.0-7202000.02645000.0421000.0343000.0-1067000.0397000.0-58000.0
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.2-0.00.00.00.20.00.00.00.1-0.10.00.00.20.00.10.00.04.07.60.0-1.2-1.0-16.90.014.5-6.3-4.40.07.24.819.70.017.48.912.30.00.3-0.1-0.30.00.50.10.10.00.1-0.0

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value8958407517477258308338568828858408648978276676806816795.2645.2645.4535.5745.6665.9556.3276.1246.0635.5735.2455.3695.6815.5335.5995.8894.8033.735-1737.335605570579-1605.323565529527523486446
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 End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value7.8428.8357.4427.4967.1487.6857.4367.3137.6647.3286.7696.9167.0956.7065.6646.0915.4346.7575.2645.2645.4535.574
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.91.11.01.01.00.90.90.90.90.80.80.80.80.80.80.90.81.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.91.11.01.01.00.90.90.90.90.80.80.80.80.80.80.90.81.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementBusinessSegments

ait:FluidPowerFlowControlSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value298268235234236256257253253255250260277226111111118105
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax33.331.931.431.432.630.930.929.628.728.829.830.130.927.416.716.417.415.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax33.331.931.431.432.630.930.929.628.728.829.830.130.927.416.716.417.415.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ait:FluidPowerFlowControlSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ait:ServiceCenterBasedDistributionSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value597572515513488574575603629630589604620601555568
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax66.768.168.668.667.469.169.170.471.371.270.269.969.172.683.383.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax66.768.168.668.667.469.169.170.471.371.270.269.969.172.683.383.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ait:ServiceCenterBasedDistributionSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments


Revenue
Period End2020-09-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-03-312017-12-312017-09-302016-09-302015-09-302014-09-30
Value747830833856885840864827667680624641702
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.011870.210779.212602.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.011870.210779.212602.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementGeographical

ait:OtherCountries


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-03-312016-12-312016-09-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-03-312011-12-312011-09-30
Value55504546394545474546444749454246373436343337373841333434363736171818
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.16.06.16.35.45.55.45.55.25.35.35.65.65.56.46.85.5661.6699.1622.3587.7626.4611.9632.9746.2621.5610.6623.7615.0771.6984.52.93.33.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.16.06.16.35.45.55.45.55.25.35.35.65.65.56.46.85.5661.6699.1622.3587.7626.4611.9632.9746.2621.5610.6623.7615.0771.6984.52.93.33.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ait:OtherCountries100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

country:CA


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value74665756545967656666686971686766616562626360676675791039988646769797074748065737378636354
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.37.97.77.67.67.28.17.77.67.58.28.07.98.210.19.89.19.61181.71188.81162.01086.31193.91112.21199.91305.61707.51779.71690.71209.21192.91260.61418.51197.11543.61986.9-4.610.812.912.7-4.911.312.010.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.37.97.77.67.67.28.17.77.67.58.28.07.98.210.19.89.19.61181.71188.81162.01086.31193.91112.21199.91305.61707.51779.71690.71209.21192.91260.61418.51197.11543.61986.9-4.610.812.912.7-4.911.312.010.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:CA100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

country:US


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value766724647644631724720742770772727747776713557567569576511525531537509538564562549561530519479501524514478499520522478487493487450459
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax85.586.286.286.187.087.386.486.887.287.286.686.586.586.383.583.483.684.89709.39982.39752.29650.78990.59040.68919.59186.29068.210076.410121.89679.98440.29055.79365.58744.19958.713374.5-30.086.483.884.1-30.886.285.287.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax85.586.286.286.187.087.386.486.887.287.286.686.586.586.383.583.483.684.89709.39982.39752.29650.78990.59040.68919.59186.29068.210076.410121.89679.98440.29055.79365.58744.19958.713374.5-30.086.483.884.1-30.886.285.287.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:US100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

ait:OtherCountries, ait:FluidPowerFlowControlSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value6.1725.3735.2395.7085.4934.5164.4383.1312.7763.0832.8783.8174.3424.2543.368
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.70.60.70.80.80.50.50.40.30.30.30.40.50.50.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.70.60.70.80.80.50.50.40.30.30.30.40.50.50.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ait:OtherCountries ait:FluidPowerFlowControlSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ait:OtherCountries, ait:ServiceCenterBasedDistributionSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value484440413341404443434144454139
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.55.35.45.54.65.04.95.24.94.94.95.15.15.05.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.55.35.45.54.65.04.95.24.94.94.95.15.15.05.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ait:OtherCountries ait:ServiceCenterBasedDistributionSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

country:CA, ait:ServiceCenterBasedDistributionSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value746657565459676566666869716867
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.37.97.77.67.67.28.17.77.67.58.28.07.98.210.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.37.97.77.67.67.28.17.77.67.58.28.07.98.210.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:CA ait:ServiceCenterBasedDistributionSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

country:US, ait:FluidPowerFlowControlSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value292262230228230251253250250251247256272222108
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax32.631.230.730.631.930.330.429.228.428.529.529.730.426.816.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax32.631.230.730.631.930.330.429.228.428.529.529.730.426.816.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:US ait:FluidPowerFlowControlSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

country:US, ait:ServiceCenterBasedDistributionSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value474461417415400473467492519520479490503491448
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax52.954.955.655.555.256.956.157.658.858.757.156.856.159.467.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax52.954.955.655.555.256.956.157.658.858.757.156.856.159.467.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:US ait:ServiceCenterBasedDistributionSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value8958407517477258308338568828858408648978276676806816795.2645.2645.4535.5745.6665.9556.3276.1246.0635.5735.2455.3695.6815.5335.5995.8894.8033.735-1737.335605570579-1605.323565529527523486446
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 End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value18117216216316118318219018518918118519218314114014714513413513614313413914314314814813713112313013313012212012212512211512411811110810610398
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 RevenueFromContractWithCustomerExcludingAssessedTax20.320.521.621.922.222.121.922.221.021.421.721.521.522.121.220.721.721.42560.82566.72494.12566.02379.22350.72274.92344.72456.02669.42625.72440.82174.72354.22376.82223.22547.43218.6-7.120.721.419.9-7.820.921.020.520.421.322.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-06-30
Value227123052241224922832289241824292331232222892305228522721405138413871346129412991312133413501376143414661480146813341096107410501058103510371001962954898900914891829872891809
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:StatementBusinessSegments

ait:FluidPowerFlowControlSegment


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-06-30
Value93991998396696997811271140106610701066107710871069200162179
Percentage of Assets41.339.943.943.042.542.846.646.945.746.146.646.747.647.114.512.113.7
Percentage of Assets41.339.943.943.042.542.846.646.945.746.146.646.747.647.114.512.113.7
Percentage of Assets ait:FluidPowerFlowControlSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ait:ServiceCenterBasedDistributionSegment


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-302010-06-302009-06-30
Value13321385125712831314131012911289126511981153112412301116859731700690611
Percentage of Assets58.760.156.157.057.557.253.453.154.352.483.185.685.883.781.276.176.677.575.5
Percentage of Assets58.760.156.157.057.557.253.453.154.352.483.185.685.883.781.276.176.677.575.5
Percentage of Assets ait:ServiceCenterBasedDistributionSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-30
Value13391370136013631440145814561502143414391400143414701466626611642640613618654677642666693729698678533315300275299297315298290282251267281278240336
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets59.059.460.760.663.163.760.261.861.562.061.162.264.364.544.644.146.347.647.447.649.950.847.648.448.349.847.246.240.028.828.026.228.328.830.429.830.129.628.029.730.831.229.037.7

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-30
Value227123052241224922832289241824292331232222892305228522721405138413871346129412991312133413501376143414661480146813341096107410501058103510371001962954898900914891829891
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 End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-06-302008-06-30
Value932934880885843830962927897882889870814806779773745705681680657656707710741736781790800781773774759737722703672672646632633613589555508502
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 Assets41.040.639.339.436.936.339.838.238.538.038.937.835.735.555.455.953.752.452.652.450.149.252.451.651.750.252.853.860.071.272.073.871.771.269.670.269.970.472.070.369.268.871.062.362.80.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-302010-06-302009-06-302008-06-30
Value-93.092-98.871-107.364-121.921-129.43-135.507-97.56-105.133-99.886-96.994-94.632-84.876-90.223-80.0-79.614-73.55-81.702-85.546-60.171-1.615-3.421-4.5695.059-6.048-7.8496.249
Percentage of StockholdersEquity-10.0-10.6-12.2-13.8-15.3-16.3-10.1-11.3-11.1-11.0-10.6-9.7-11.1-9.9-10.2-9.5-11.0-13.0-8.1-0.2-0.5-0.70.8-1.1-1.51.2
Percentage of Assets-4.1-4.3-4.8-5.4-5.7-5.9-4.0-4.3-4.3-4.2-4.1-3.7-3.9-3.5-5.7-5.3-5.9-6.5-4.2-0.1-0.3-0.50.6-0.7-1.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-302010-06-302009-06-302008-06-30
Value177177175176176174173172172171170168169167166164164162160156153150148143136133
Percentage of StockholdersEquity19.019.019.919.920.921.018.018.619.319.519.119.420.820.821.321.322.124.721.619.620.322.323.425.826.926.5
Percentage of Assets7.87.77.87.87.77.67.27.17.47.47.47.37.47.411.811.911.912.411.211.814.515.616.216.116.90.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-06-302015-06-302014-06-30
Value932934880885843830962927897882889870814806779773745657741800
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets41.040.639.339.436.936.339.838.238.538.038.937.835.735.555.455.953.750.151.760.0
Percentage of Assets us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-302010-06-302009-06-302008-06-30
Value12941260121712351200119512901264122912131208118111291112108710671033944969896824743668601560543
Percentage of StockholdersEquity138.8134.9138.3139.5142.3143.9134.1136.4137.0137.4135.8135.7138.6138.0139.5138.0138.7143.6130.8112.1108.5110.6105.5108.3110.3108.3
Percentage of Assets57.054.754.354.952.652.253.452.052.752.252.851.349.448.977.377.174.572.067.667.277.977.373.167.569.30.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-302010-06-302009-06-302008-06-30
Value-455.789-414.214-414.527-414.031-414.09-414.174-414.561-414.513-415.159-415.206-404.586-404.619-403.875-403.956-404.288-395.253-381.448-373.888-338.121-261.852-225.219-226.73-198.224-193.468-191.518-190.944
Percentage of StockholdersEquity-48.9-44.3-47.1-46.8-49.1-49.9-43.1-44.7-46.3-47.0-45.5-46.5-49.6-50.1-51.9-51.1-51.2-56.8-45.6-32.7-29.6-33.7-31.3-34.9-37.7-38.0
Percentage of Assets-20.1-18.0-18.5-18.4-18.1-18.1-17.1-17.1-17.8-17.9-17.7-17.5-17.7-17.8-28.8-28.5-27.5-28.5-23.6-19.6-21.3-23.6-21.7-21.7-23.70.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-30
Value11961226115111361159116211421144114811251081108910581051903876882836782777781803780813859886877874836774750733737702697687665649609605618592528618
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 Assets52.753.251.450.550.850.847.247.149.248.547.247.246.346.364.363.363.662.160.459.859.660.257.859.159.960.459.359.662.770.669.969.969.667.867.368.669.268.067.967.267.666.463.869.4

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-06-302008-06-30
Value257304288271268165128981084779565443857710567625859625563695533527169667673435156787970739188539417515610427101
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 Assets11.313.212.912.111.87.25.34.04.62.03.52.42.41.96.15.67.65.04.94.54.64.74.14.64.83.82.23.55.36.36.27.36.94.25.05.78.28.37.98.110.09.96.510.819.70.00.03.40.0

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-30
Value516510444447449524502529540574512565548533393405390390336347347354329356376394385403375344305320329336304325307307280289290280250246
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 Assets22.722.119.819.919.722.920.821.823.224.722.424.524.023.528.029.328.229.026.026.726.526.624.425.926.226.926.027.528.231.428.530.531.232.529.432.531.932.231.332.231.831.530.227.6

Inventory Net

us-gaap:InventoryNet

us-gaap:InventoryNet


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-30
Value362358363365389421463465447454445431422432386364345344349342338346359350362381401367335320323302281281294268228230222215204196194173
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 Assets16.015.516.216.217.018.419.219.119.219.619.518.718.519.027.526.424.925.627.026.325.826.026.625.525.326.027.125.025.229.230.128.826.627.128.426.823.724.124.823.922.322.023.519.4

Inventory L I F O Reserve

us-gaap:InventoryLIFOReserve

us-gaap:InventoryLIFOReserve


Inventory
Period End2021-06-302020-06-302019-06-302018-06-302017-06-30
Value151155151139137
Percentage of InventoryLIFOReserve100.0100.0100.0100.0100.0
Percentage of Assets6.76.86.56.19.9

Other Assets Current

us-gaap:OtherAssetsCurrent

us-gaap:OtherAssetsCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-30
Value5954545252514752514944353241372841333330353936425155575153415434524246355131362733262923
Percentage of OtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.62.32.42.42.32.32.02.12.22.11.91.51.41.82.72.13.02.52.62.32.73.02.73.13.63.83.93.54.03.85.13.35.04.14.53.65.43.34.03.13.63.03.52.6

Land

us-gaap:Land

us-gaap:Land


Land
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-302010-06-30
Value141414141414121310101010
Percentage of Land100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.60.60.61.01.10.91.01.01.11.11.2

Noncurrent Assets

us-gaap:NoncurrentAssets

us-gaap:NoncurrentAssets


Noncurrent
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-30
Value202555493557271299303456281251235
Percentage of NoncurrentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.924.321.224.419.622.821.134.226.626.125.7

us-gaap:NoncurrentAssets us-gaap:StatementGeographical

ait:OtherCountriesDomain


Noncurrent
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-30
Value7.9078.1484.9685.6566.5587.1639.11326261013
Percentage of NoncurrentAssets3.91.51.01.02.42.43.05.79.54.15.8
Percentage of Assets0.30.40.20.20.50.50.62.02.51.11.5
Percentage of Assets ait:OtherCountriesDomain0.00.00.00.00.00.00.00.00.00.00.0

country:CA


Noncurrent
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-30
Value21231350576676202444229
Percentage of NoncurrentAssets10.64.32.79.021.322.225.244.315.717.012.7
Percentage of Assets0.91.00.62.24.25.15.315.24.24.43.3
Percentage of Assets country:CA0.00.00.00.00.00.00.00.00.00.00.0

country:US


Noncurrent
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-30
Value173523474501207225217228210198191
Percentage of NoncurrentAssets85.594.296.390.076.375.471.750.074.778.981.5
Percentage of Assets7.622.920.421.914.917.215.217.119.920.621.0
Percentage of Assets country:US0.00.00.00.00.00.00.00.00.00.00.0

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-302010-06-30
Value319313305296274269268260240231212197
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets14.113.713.113.019.820.518.719.522.724.123.322.1

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-30
Value204200198197192187188184181177182179175172171170166165164163161162168166164160163160156157163160157155155152148147146144143142140138
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 Assets9.08.78.98.88.48.27.87.67.87.68.07.87.77.612.212.312.012.312.712.612.312.212.512.111.511.011.010.911.814.415.215.314.915.015.015.215.415.516.316.115.716.016.915.6

Amortization Of Intangible Assets

us-gaap:AmortizationOfIntangibleAssets

us-gaap:AmortizationOfIntangibleAssets


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value8.1278.2368.2769.7269.882111010109.9111010109.85.6955.8315.9846.0566.0946.2376.5156.746.2426.0836.3856.3536.5686.4914.5053.1883.0813.2493.5173.5093.1523.0553.012.9112.7352.8092.9142.792.8912.7872.5962.508
Percentage of AmortizationOfIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AmortizationOfIntangibleAssets us-gaap:StatementBusinessSegments

ait:FluidPowerFlowControlSegment


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-31
Value7.2077.2937.2937.1457.1947.2917.3637.327.2067.1177.0186.9036.6125.4891.3421.342
Percentage of AmortizationOfIntangibleAssets88.788.688.173.572.865.772.270.671.671.863.963.261.656.022.422.2
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets ait:FluidPowerFlowControlSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ait:ServiceCenterBasedDistributionSegment


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value0.9190.9440.9822.5812.6883.8112.8323.054
Percentage of AmortizationOfIntangibleAssets11.311.511.926.527.234.327.829.4
Percentage of Assets0.00.00.00.00.00.00.00.0
Percentage of Assets ait:ServiceCenterBasedDistributionSegment0.00.00.00.00.00.00.00.0

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-30
Value115116120120121123126125124123122119121121111111108106105106107108106104104104107106103788081838485848378767369676758
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 Assets5.15.15.45.35.35.45.25.15.35.35.35.25.35.48.08.07.87.98.18.28.28.17.97.67.37.17.37.37.87.27.57.77.98.18.28.48.68.28.58.17.57.68.16.6

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-30
Value560559557541540539673671661661651647646629209209206205203205202199249248254252260259193111111106106108105948384757676757463
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets24.724.324.924.123.723.627.827.628.428.528.428.128.327.714.915.214.915.215.815.815.414.918.518.117.717.217.617.614.510.110.410.210.110.410.19.48.68.98.48.58.48.59.07.1

us-gaap:Goodwill us-gaap:ReportingUnit

ait:FCXPerformanceIncMember


Goodwillus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-03-312019-12-312019-09-30
Value309309309309309440440
Percentage of Goodwill55.255.355.557.157.365.465.5
Percentage of Assets13.613.413.813.713.518.218.1
Percentage of Assets ait:FCXPerformanceIncMember0.00.00.00.00.00.00.0

country:CA


Goodwillus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-06-30
Value2927272628
Percentage of Goodwill5.25.15.04.94.3
Percentage of Assets1.31.21.21.11.2
Percentage of Assets country:CA0.00.00.00.00.0

country:MX


Goodwillus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-31
Value6.0265.3655.1854.945
Percentage of Goodwill1.11.01.00.9
Percentage of Assets0.30.20.20.2
Percentage of Assets country:MX0.00.00.00.0

us-gaap:Goodwill us-gaap:StatementBusinessSegments

ait:FluidPowerFlowControlSegment


Goodwillus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-06-302018-06-302018-03-312017-06-302016-06-30
Value3473473453323323324484434254.3954.214
Percentage of Goodwill62.162.262.161.361.461.567.768.667.52.12.1
Percentage of Assets15.315.115.414.814.514.519.219.418.70.30.3
Percentage of Assets ait:FluidPowerFlowControlSegment37.037.835.234.434.233.942.040.839.82.22.3

ait:ServiceCenterBasedDistributionSegment


Goodwillus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-06-302010-06-302009-06-30
Value2122112112092082072102102132122022032032042042052012002002011981952462472532512592581921101101061051071049483766363
Percentage of Goodwill37.937.837.938.738.638.531.331.332.332.231.131.531.432.597.997.997.997.998.297.997.997.998.999.699.699.699.699.699.599.299.299.199.199.199.2100.0100.0100.0100.00.0
Percentage of Assets9.39.29.49.39.19.18.78.79.29.28.98.88.99.014.614.814.514.915.515.515.114.618.318.017.717.217.517.614.410.110.310.110.010.310.09.48.68.47.17.8
Percentage of Assets ait:ServiceCenterBasedDistributionSegment15.915.316.816.315.915.816.316.316.90.00.00.016.90.00.00.017.50.00.00.017.70.00.00.020.60.00.00.017.30.00.00.012.30.00.00.011.411.09.210.3

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-30
Value2792872943333433523643743683784134254354481531591631681731811911951851911982032162081598891879195100908488828689909385
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 Assets12.312.513.114.815.015.415.115.415.816.318.018.519.119.710.911.511.812.513.414.014.614.713.713.913.913.914.614.212.08.18.58.48.69.29.79.08.89.39.29.69.810.111.39.6

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:FiniteLivedIntangibleAssetsNet


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-06-30
Value27928729433334335236437436837841342543544815315916316817318119119518519119820321620815988918791959988838781858885
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets12.312.513.114.815.015.415.115.415.816.318.018.519.119.710.911.511.812.513.414.014.614.713.713.913.913.914.614.212.08.18.58.48.69.29.68.98.79.29.19.59.69.6

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass

ait:VendorRelationships


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-06-30
Value1.611.8152.0242.2062.3952.5642.8072.9913.2113.4193.6183.844.0434.284.494.7755.0115.2625.4655.7936.0396.3446.5676.7887.2077.5337.9228.3518.8189.0739.329.6689.991010119.1059.5199.63410
Percentage of FiniteLivedIntangibleAssetsNet0.60.60.70.70.70.70.80.80.90.90.90.90.91.02.93.03.13.13.23.23.23.23.53.53.63.73.74.05.510.310.211.010.911.010.812.410.910.911.811.9
Percentage of Assets0.10.10.10.10.10.10.10.10.10.10.20.20.20.20.30.30.40.40.40.40.50.50.50.50.50.50.50.60.70.80.90.90.91.01.01.10.91.01.11.1
Percentage of Assets ait:VendorRelationships0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CustomerRelationships


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value209215222255263270279292286294322332340350124129132136140146154157146153159163173164122616459626469585456515354
Percentage of FiniteLivedIntangibleAssetsNet74.874.875.676.676.676.776.778.177.777.778.178.178.178.381.381.281.181.080.980.980.880.379.180.280.280.280.379.176.669.870.068.167.967.969.565.765.065.162.562.462.3
Percentage of Assets9.29.39.911.411.511.811.612.112.312.714.114.414.915.48.99.49.610.110.811.311.811.810.811.211.111.211.711.29.25.66.05.75.96.26.75.85.66.05.75.96.0
Percentage of Assets us-gaap:CustomerRelationships0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherIntangibleAssets


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-06-302011-09-302011-06-30
Value1.6981.7771.2861.0471.131.221.310.4531010
Percentage of FiniteLivedIntangibleAssetsNet0.60.60.40.30.30.30.40.111.811.9
Percentage of Assets0.10.10.10.00.00.10.10.01.11.1
Percentage of Assets us-gaap:OtherIntangibleAssets0.00.00.00.00.00.00.00.00.00.0

us-gaap:TradeNames


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value6768687476788078788086889092232424252526282927282930313226161717181817171818191920
Percentage of FiniteLivedIntangibleAssetsNet24.023.923.222.422.322.322.220.921.321.321.020.820.820.615.115.115.015.014.914.814.815.214.915.014.814.814.615.416.618.718.619.819.819.617.920.121.821.623.323.123.0
Percentage of Assets3.03.03.13.33.43.43.33.23.43.53.83.84.04.11.61.71.81.92.02.12.22.22.02.12.12.12.12.22.01.51.61.71.71.81.71.81.92.02.12.22.2
Percentage of Assets us-gaap:TradeNames0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Intangible Assets Net Including Goodwill

us-gaap:IntangibleAssetsNetIncludingGoodwill us-gaap:BusinessAcquisition

us-gaap:IntangibleAssetsNetIncludingGoodwill

ait:AdvancedControlSolutions


Intangible
Period End2021-06-302020-10-05
Value1616
Percentage of IntangibleAssetsNetIncludingGoodwill100.0100.0
Percentage of Assets0.70.0
Percentage of Assets ait:AdvancedControlSolutions0.00.0

ait:GibsonEngineering


Intangible
Period End2020-12-31
Value11
Percentage of IntangibleAssetsNetIncludingGoodwill0.0
Percentage of Assets0.5
Percentage of Assets ait:GibsonEngineering0.0

Deferred Tax Assets Liabilities Net

us-gaap:DeferredTaxAssetsLiabilitiesNet us-gaap:BalanceSheetLocation

us-gaap:DeferredTaxAssetsLiabilitiesNet

us-gaap:OtherAssets


Deferred
Period End2021-06-302020-06-30
Value6.3734.749
Percentage of DeferredTaxAssetsLiabilitiesNet100.0100.0
Percentage of Assets0.30.2
Percentage of Assets us-gaap:OtherAssets0.00.0

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value87848689908685860.0
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets3.83.63.94.04.03.83.53.60.0

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-30
Value3231302827242726283321232321181718171616161716171718181920192019191921191818161617171716
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.41.41.31.21.21.11.11.11.21.51.01.01.00.91.31.31.31.31.31.31.31.31.31.31.21.21.31.31.51.81.91.91.81.82.11.92.02.01.81.81.92.02.11.8

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-30
Value2082171961811862142122292372402322412562171651651801501371491481341141421791431501451721451401311361401231451201241051091081108694
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 Assets9.29.48.88.18.29.48.89.410.210.310.210.511.29.611.811.913.011.210.611.511.310.18.510.412.59.810.29.912.913.313.112.512.913.611.914.612.613.111.812.211.912.310.510.6

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-30
Value427465425414426447420478423416393394432369271280309270237264274252221258310269271271290268250225245240255242230225198206214208172271
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 Assets18.820.219.018.418.719.617.419.718.217.917.217.118.916.319.320.222.320.118.320.320.918.916.418.821.618.418.318.521.824.523.421.523.223.224.624.223.923.622.223.023.523.420.730.4

Long Term Debt Current

us-gaap:LongTermDebtCurrent

us-gaap:LongTermDebtCurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value43787878787873934944441919196.3785.5954.8144.0123.2483.2483.3523.3513.353.9753.3492.722.722.8422.72
Percentage of LongTermDebtCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.93.43.53.53.43.43.03.92.11.91.90.80.80.80.50.40.30.30.30.20.30.30.20.30.20.20.20.20.2

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent us-gaap:BalanceSheetLocation

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OtherCurrentLiabilities


Operating
Period End2021-06-302020-06-30
Value2727
Percentage of OperatingLeaseLiabilityCurrent100.0100.0
Percentage of Assets1.21.2
Percentage of Assets us-gaap:OtherCurrentLiabilities0.00.0

Other Liabilities Current

us-gaap:OtherLiabilitiesCurrent

us-gaap:OtherLiabilitiesCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-30
Value9889838899857791696260708364505965585265656262686368637560464649454545494644415240434351
Percentage of OtherLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.33.93.73.94.33.83.23.83.02.72.63.03.62.93.64.34.74.44.05.15.04.74.75.04.44.74.35.24.54.24.34.74.34.44.45.04.84.74.65.84.54.95.25.8

Long Term Debt

us-gaap:LongTermDebt us-gaap:LongtermDebtType

us-gaap:LongTermDebt

ait:PrudentialFacility


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302018-03-312017-12-312017-09-302017-03-312016-12-312016-09-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-07-01
Value90130130130170170170170170170170170170170170170120120
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.05.65.85.87.47.512.112.312.613.113.112.712.612.411.611.58.20.0
Percentage of Assets ait:PrudentialFacility0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ait:PrudentialFacilitySeriesC


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-09-302016-06-302015-09-302015-06-302014-07-01
Value40808080120120120120120120120120120120120120120120120120120120
Percentage of LongTermDebt44.461.561.561.570.60.00.00.00.00.00.00.00.070.670.670.60.070.60.070.60.0100.0
Percentage of Assets1.83.53.63.65.35.25.04.95.15.25.25.25.25.38.58.78.69.29.18.78.40.0
Percentage of Assets ait:PrudentialFacilitySeriesC0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ait:PrudentialFacilitySeriesD


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-09-302016-06-302015-09-302015-06-30
Value252525252525505050505050505050505050505050
Percentage of LongTermDebt27.819.219.219.214.70.00.00.00.00.00.00.00.029.429.429.40.029.40.029.40.0
Percentage of Assets1.11.11.11.11.11.12.12.12.12.22.22.22.22.23.63.63.63.83.83.63.5
Percentage of Assets ait:PrudentialFacilitySeriesD0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ait:PrudentialFacilitySeriesE


Long
Period End2021-06-302020-06-302019-06-30
Value25250.0
Percentage of LongTermDebt27.814.70.0
Percentage of Assets1.11.10.0
Percentage of Assets ait:PrudentialFacilitySeriesE0.00.00.0

ait:StateofOhioAssumedDebt


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value0.8460.9060.9661.0261.0261.0261.0861.1451.2041.2631.3221.381.4381.4961.5541.6121.6691.7261.7641.841.8961.9522.0092.0652.122.22.22.32.337
Percentage of LongTermDebt0.90.70.70.80.60.00.00.00.00.00.00.00.00.90.90.90.01.01.01.10.01.11.21.20.01.31.31.90.0
Percentage of Assets0.00.00.00.00.00.00.00.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.20.10.20.10.20.2
Percentage of Assets ait:StateofOhioAssumedDebt0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:LongTermDebt


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value550560569579589599603608613618623628775780118119120121121122123
Percentage of LongTermDebt611.4430.8438.3445.8346.60.00.00.00.00.00.00.00.0458.869.970.30.071.271.772.20.0
Percentage of Assets24.224.325.425.825.826.225.025.126.326.627.227.233.934.38.48.68.79.09.49.49.4
Percentage of Assets us-gaap:LongTermDebt0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent

us-gaap:LongTermDebtNoncurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value7847737837928558648748599089379239539441017306285286317323301324367363351317386346321167
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets34.533.534.935.237.437.836.135.439.040.440.341.341.344.821.820.620.723.625.023.224.827.626.925.522.126.423.421.912.6

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet us-gaap:BalanceSheetLocation

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:OtherLiabilities


Deferred
Period End2021-06-302020-06-30
Value1942
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0
Percentage of Assets0.81.9
Percentage of Assets us-gaap:OtherLiabilities0.00.0

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-30
Value1261311511561581461611641027773788165343029323131333738364655616551222424222224212021161618201816
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.65.76.87.07.06.46.76.84.43.33.23.43.62.92.42.22.12.42.42.42.62.82.82.73.23.84.24.53.82.02.32.32.12.12.42.22.12.21.91.82.12.32.31.9

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent us-gaap:BalanceSheetLocation

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OtherLiabilities


Operating
Period End2021-06-302020-06-30
Value6467
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0
Percentage of Assets2.83.0
Percentage of Assets us-gaap:OtherLiabilities0.00.0

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2021-06-30
Value22
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0
Percentage of Assets1.0

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2021-06-30
Value17
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0
Percentage of Assets0.8

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2021-06-30
Value10
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0
Percentage of Assets0.5

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2021-06-30
Value6547000.0
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 End2021-06-30
Value11
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets0.5

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2021-06-302020-06-302020-03-312019-12-312019-09-30
Value9195919092
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0
Percentage of Assets4.04.24.03.83.8

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2021-06-30
Value99
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0
Percentage of Assets4.4

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2021-06-30
Value7543000.0
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0
Percentage of Assets0.3

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-06-302008-06-30
Value932934880885843830962927897882889870814806779773745705681680657656707710741736781790800781773774759737722703672672646632633613589555508502
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 Assets41.040.639.339.436.936.339.838.238.538.038.937.835.735.555.455.953.752.452.652.450.149.252.451.651.750.252.853.860.071.272.073.871.771.269.670.269.970.472.070.369.268.871.062.362.80.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-302010-06-302009-06-302008-06-30
Value-93.092-98.871-107.364-121.921-129.43-135.507-97.56-105.133-99.886-96.994-94.632-84.876-90.223-80.0-79.614-73.55-81.702-85.546-60.171-1.615-3.421-4.5695.059-6.048-7.8496.249
Percentage of StockholdersEquity-10.0-10.6-12.2-13.8-15.3-16.3-10.1-11.3-11.1-11.0-10.6-9.7-11.1-9.9-10.2-9.5-11.0-13.0-8.1-0.2-0.5-0.70.8-1.1-1.51.2
Percentage of Assets-4.1-4.3-4.8-5.4-5.7-5.9-4.0-4.3-4.3-4.2-4.1-3.7-3.9-3.5-5.7-5.3-5.9-6.5-4.2-0.1-0.3-0.50.6-0.7-1.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-302010-06-302009-06-302008-06-30
Value177177175176176174173172172171170168169167166164164162160156153150148143136133
Percentage of StockholdersEquity19.019.019.919.920.921.018.018.619.319.519.119.420.820.821.321.322.124.721.619.620.322.323.425.826.926.5
Percentage of Assets7.87.77.87.87.77.67.27.17.47.47.47.37.47.411.811.911.912.411.211.814.515.616.216.116.90.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-06-302015-06-302014-06-30
Value932934880885843830962927897882889870814806779773745657741800
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets41.040.639.339.436.936.339.838.238.538.038.937.835.735.555.455.953.750.151.760.0
Percentage of Assets us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-302010-06-302009-06-302008-06-30
Value12941260121712351200119512901264122912131208118111291112108710671033944969896824743668601560543
Percentage of StockholdersEquity138.8134.9138.3139.5142.3143.9134.1136.4137.0137.4135.8135.7138.6138.0139.5138.0138.7143.6130.8112.1108.5110.6105.5108.3110.3108.3
Percentage of Assets57.054.754.354.952.652.253.452.052.752.252.851.349.448.977.377.174.572.067.667.277.977.373.167.569.30.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-302010-06-302009-06-302008-06-30
Value-455.789-414.214-414.527-414.031-414.09-414.174-414.561-414.513-415.159-415.206-404.586-404.619-403.875-403.956-404.288-395.253-381.448-373.888-338.121-261.852-225.219-226.73-198.224-193.468-191.518-190.944
Percentage of StockholdersEquity-48.9-44.3-47.1-46.8-49.1-49.9-43.1-44.7-46.3-47.0-45.5-46.5-49.6-50.1-51.9-51.1-51.2-56.8-45.6-32.7-29.6-33.7-31.3-34.9-37.7-38.0
Percentage of Assets-20.1-18.0-18.5-18.4-18.1-18.1-17.1-17.1-17.8-17.9-17.7-17.5-17.7-17.8-28.8-28.5-27.5-28.5-23.6-19.6-21.3-23.6-21.7-21.7-23.70.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-30
Value177177175176176174173172172171170168169167166164164163162162162161160160160158158158156156155154153152151150150149151150148148146143
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 Assets7.87.77.87.87.77.67.27.17.47.47.47.37.47.411.811.911.912.112.612.512.412.111.911.711.210.810.710.811.814.314.514.714.514.714.615.115.615.716.916.716.216.617.716.1

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-30
Value129412601217123512001195129012641229121312081181112911121087106710331003985972944940996983969952934915896877857841824801782764743720699686668648628601
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 Assets57.054.754.354.952.652.253.452.052.752.252.851.349.448.977.377.174.574.576.174.872.070.573.871.467.665.063.162.367.280.079.880.177.977.475.476.377.375.577.976.373.172.775.867.5

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-30
Value-93092000.0-98871000.0-107360000.0-121920000.0-129430000.0-135510000.0-97560000.0-105130000.0-99886000.0-96994000.0-94632000.0-84876000.0-90223000.0-80000000.0-79614000.0-73550000.0-81702000.0-89412000.0-97622000.0-87803000.0-85546000.0-81196000.0-94314000.0-87641000.0-60171000.0-64223000.0-38156000.0-20703000.0-1615000.0-13884000.0-10100000.0-2790000.0-3421000.0-1186000.04119000.04579000.0-4569000.07458000.01427000.02164000.05059000.03331000.0-3877000.0-6048000.0
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-4.1-4.3-4.8-5.4-5.7-5.9-4.0-4.3-4.3-4.2-4.1-3.7-3.9-3.5-5.7-5.3-5.9-6.6-7.5-6.8-6.5-6.1-7.0-6.4-4.2-4.4-2.6-1.4-0.1-1.3-0.9-0.3-0.3-0.10.40.5-0.50.80.20.20.60.4-0.5-0.7

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-06-30
Value-93092000.0-98871000.0-107360000.0-121920000.0-129430000.0-135510000.0-97560000.0-105130000.0-99886000.0-96994000.0-94632000.0-84876000.0-90223000.0-80000000.0-79614000.0-73550000.0-81702000.0-89412000.0-97622000.0-87803000.0-85546000.0-81196000.0-94314000.0-87641000.0-60171000.0-1615000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-4.1-4.3-4.8-5.4-5.7-5.9-4.0-4.3-4.3-4.2-4.1-3.7-3.9-3.5-5.7-5.3-5.9-6.6-7.5-6.8-6.5-6.1-7.0-6.4-4.2-0.1
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Treasury Stock Value

us-gaap:TreasuryStockValue

us-gaap:TreasuryStockValue


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-30
Value455414414414414414414414415415404404403403404395381381378376373374365355338320283272261249239228225225225226226215216216198196192193
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 Assets20.118.018.518.418.118.117.117.117.817.917.717.517.717.828.828.527.528.329.329.028.528.127.025.823.621.919.218.519.622.722.321.821.321.821.822.623.622.624.124.021.722.023.221.7

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

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:AwardType, us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

ait:StockOptionsAndStockAppreciationRights, us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-03-312020-12-312020-09-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-03-312017-12-312017-09-30
Value602000.0635000.0693000.0723000.0721000.0773000.0574000.0606000.0651000.0466000.0436000.0577000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets ait:StockOptionsAndStockAppreciationRights us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.0

ait:StockOptionsAndStockAppreciationRights, us-gaap:Parent


Adjustments
Period End2021-03-312020-12-312020-09-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-03-312017-12-312017-09-30
Value602000.0635000.0693000.0723000.0721000.0773000.0574000.0606000.0651000.0466000.0436000.0577000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets ait:StockOptionsAndStockAppreciationRights us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-03-312020-12-312020-09-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-03-312017-12-312017-09-30
Value2493000.01490000.0677000.0209000.0918000.0919000.01365000.01308000.01043000.01904000.0799000.0778000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue414.1234.697.728.9127.3118.9237.8215.8160.2408.6183.3134.8
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Adjustments
Period End2021-03-312020-12-312020-09-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-03-312017-12-312017-09-30
Value2493000.01490000.0677000.0209000.0918000.0919000.01365000.01308000.01043000.01904000.0799000.0778000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue414.1234.697.728.9127.3118.9237.8215.8160.2408.6183.3134.8
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value384477811276454501031153119926119.4486323.79441705718141153819-18.1016511151642404.93923283113161244154.5162860
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.35.210.310.917.57.86.65.811.71.36.41.411.13.21.81.412.64.872.1795.31295.31030.1323.9245.01821.2622.8317.9-324.81254.2217.2276.5306.5756.2682.1102.8641.2-1.65.22.42.8-0.87.82.90.95.412.4

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-3421000.0-2274000.0-35831000.0-3404000.0-3753000.0-3621000.0-7469000.0-40561000.0-6905000.0-34836000.0-10265000.0-3096000.0-2573000.0-779460000.0-4811000.0-11067000.0-5053000.0-7779000.0-2810000.0-1252000.0-9820000.0-36418000.0-14544000.0-14249000.03416000.0-3772000.0-40358000.0-132910000.0-180490000.0-2342000.0-19414000.0-1388000.0-2135000.0-4221000.0-33411000.0-39058000.0-8051000.0-17101000.0-6536000.0-7746000.0-6503000.035000.0-12890000.0-28529000.0-2964000.0-1190000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.4-0.3-4.8-0.5-0.5-0.4-0.9-4.7-0.8-3.9-1.2-0.4-0.3-94.2-0.7-1.6-0.7-1.1-53.4-23.8-180.1-653.4-256.7-239.354.0-61.6-665.6-2384.8-3441.2-43.6-341.7-25.1-38.1-71.7-695.6-1045.70.5-2.8-1.1-1.30.40.0-2.4-5.4-0.6-0.2

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-82.503-26.28-27.071-77.183-22.279-19.638-17.447-18.874-36.069-9.549-19.046-6.875-84.6517101.657-27.302-44.596-21.7325.131-42.152-62.886-15.656-11.145-2.298-103.008-9.0953.49133115-5.97-5.35-11.837-9.197-44.20423-8.423-19.474-6.998-8.3-26.044-4.358-11.107-44.387-56.671-5.978-7.293
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-9.2-3.1-3.6-10.3-3.1-2.4-2.1-2.2-4.1-1.1-2.3-0.8-9.485.90.2-4.0-6.5-3.297.5-800.8-1153.2-280.9-196.7-38.6-1628.1-148.557.62391.92198.3-111.2-94.2-213.9-164.3-750.6495.5-225.51.1-1.2-1.5-4.50.3-2.0-8.4-10.7-1.1-1.5

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value-46.27115172.5091033729-10.01560
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-5.21.82.40.314.24.53.6-1.26.9

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value384477811276454501031153119926119.4486323.79441705718141153819-18.1016511151642404.93923283113161244154.5162860
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.35.210.310.917.57.86.65.811.71.36.41.411.13.21.81.412.64.872.1795.31295.31030.1323.9245.01821.2622.8317.9-324.81254.2217.2276.5306.5756.2682.1102.8641.2-1.65.22.42.8-0.87.82.90.95.412.4

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value5956-5.3343429-82.777383839163848403630335229242726-44.72823242828292929302526322927293229202628262120271610
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 RevenueFromContractWithCustomerExcludingAssessedTax6.66.7-0.74.74.1-10.04.64.54.51.94.65.74.54.44.65.07.84.3457.5520.0478.0-802.4422.6407.9443.3467.2490.0522.6565.8566.1456.1485.2576.4497.6563.0790.7-1.84.93.74.6-1.84.74.03.95.33.42.4

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:Parent


Net
Period End2021-03-312020-12-312020-09-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-03-312017-12-312017-09-30
Value56-5.33434-82.7773838163848363033
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.7-0.74.7-10.04.64.51.94.65.74.44.65.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value677000.01954000.0209000.0918000.0919000.0758000.01365000.01308000.01043000.01185000.01904000.0799000.0778000.0793000.01558000.0723000.0555000.0451000.01119000.0326000.0628000.0
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensation us-gaap:AwardType

us-gaap:StockAppreciationRightsSARS


Share
Period End2020-09-302019-09-30
Value693000.0773000.0
Percentage of ShareBasedCompensation102.484.1

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-3421000.0-2274000.0-35831000.0-3404000.0-3753000.0-3621000.0-7469000.0-40561000.0-6905000.0-34836000.0-10265000.0-3096000.0-2573000.0-779460000.0-4811000.0-11067000.0-5053000.0-7779000.0-2810000.0-1252000.0-9820000.0-36418000.0-14544000.0-14249000.03416000.0-3772000.0-40358000.0-132910000.0-180490000.0-2342000.0-19414000.0-1388000.0-2135000.0-4221000.0-33411000.0-39058000.0-8051000.0-17101000.0-6536000.0-7746000.0-6503000.035000.0-12890000.0-28529000.0-2964000.0-1190000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.4-0.3-4.8-0.5-0.5-0.4-0.9-4.7-0.8-3.9-1.2-0.4-0.3-94.2-0.7-1.6-0.7-1.1-53.4-23.8-180.1-653.4-256.7-239.354.0-61.6-665.6-2384.8-3441.2-43.6-341.7-25.1-38.1-71.7-695.6-1045.70.5-2.8-1.1-1.30.40.0-2.4-5.4-0.6-0.2

Payments To Acquire Productive Assets

us-gaap:PaymentsToAcquireProductiveAssets

us-gaap:PaymentsToAcquireProductiveAssets


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value3.6753.7284.8523.5973.8924.2587.0194.9467.2594.6153.9233.1735.3326.4395.1246.3365.2585.0773.7112.9993.6893.7042.6253.1123.9243.2034.7063.1132.3662.5551.5712.3782.9932.9513.8927.7264.2736.887.1423.9852.643120.873
Percentage of PaymentsToAcquireProductiveAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireProductiveAssets us-gaap:StatementBusinessSegments

ait:FluidPowerFlowControlSegment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-31
Value0.620.5780.410.5090.8510.670.780.7510.5080.5910.6670.7291.5942.0540.1881.849
Percentage of PaymentsToAcquireProductiveAssets16.915.58.514.221.915.711.115.27.012.817.023.029.931.93.636.4

ait:ServiceCenterBasedDistributionSegment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value3.0553.154.4423.0883.0413.5886.2394.195
Percentage of PaymentsToAcquireProductiveAssets83.184.591.585.878.184.388.984.8

us-gaap:OperatingSegments


Payments
Period End2020-09-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-03-312017-12-312017-09-302016-09-302015-09-302014-09-30
Value3.5974.2587.0194.9464.6153.9233.1736.4395.1246.3362.9993.1123.1
Percentage of PaymentsToAcquireProductiveAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-82.503-26.28-27.071-77.183-22.279-19.638-17.447-18.874-36.069-9.549-19.046-6.875-84.6517101.657-27.302-44.596-21.7325.131-42.152-62.886-15.656-11.145-2.298-103.008-9.0953.49133115-5.97-5.35-11.837-9.197-44.20423-8.423-19.474-6.998-8.3-26.044-4.358-11.107-44.387-56.671-5.978-7.293
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-9.2-3.1-3.6-10.3-3.1-2.4-2.1-2.2-4.1-1.1-2.3-0.8-9.485.90.2-4.0-6.5-3.297.5-800.8-1153.2-280.9-196.7-38.6-1628.1-148.557.62391.92198.3-111.2-94.2-213.9-164.3-750.6495.5-225.51.1-1.2-1.5-4.50.3-2.0-8.4-10.7-1.1-1.5

Payments Of Dividends Common Stock

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsOfDividendsCommonStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1212121212121211121111111111111111111010101010101011101010109.7259.7469.7269.7318.878.8678.8618.8627.9788.0998.1027.2277.2167.2066.3626.355
Percentage of PaymentsOfDividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Debt Instrument Interest Rate Stated Percentage

us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:BusinessAcquisition

us-gaap:DebtInstrumentInterestRateStatedPercentage

ait:GibsonEngineering


Debt
Period End2020-12-31
Value1.0
Percentage of DebtInstrumentInterestRateStatedPercentage100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations ait:GibsonEngineering0.0

ait:MilRocMemberDomain


Debt
Period End2021-06-302019-03-04
Value2.00.02
Percentage of DebtInstrumentInterestRateStatedPercentage0.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations ait:MilRocMemberDomain0.00.0

us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:LongtermDebtType

us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivables


Debt
Period End2021-06-302021-03-312019-06-30
Value0.980.980.009
Percentage of DebtInstrumentInterestRateStatedPercentage0.00.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivables0.00.00.0

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

srt:Maximum, ait:PrudentialFacility


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-03-312019-12-312019-09-302019-06-30
Value1.251.251.251.250.01250.01250.01250.0125
Percentage of DebtInstrumentInterestRateStatedPercentage0.00.0125.00.00.00.00.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.00.00.00.00.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations srt:Maximum ait:PrudentialFacility0.00.00.00.00.00.00.00.0

srt:Minimum, ait:PrudentialFacility


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-03-312019-12-312019-09-302019-06-30
Value0.250.250.250.250.00250.00250.00250.0025
Percentage of DebtInstrumentInterestRateStatedPercentage0.00.025.00.00.00.00.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.00.00.00.00.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations srt:Minimum ait:PrudentialFacility0.00.00.00.00.00.00.00.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

ait:StockOptionsAndStockAppreciationRights


Share
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-30
Value1158000.01620000.01479000.01401000.01218000.01236000.01116000.01039000.01080000.01228000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

ait:StockOptionsAndStockAppreciationRights


Share
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-30
Value55.751.0749.4245.3242.2637.6935.8633.428.7924.68
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2021-06-302020-06-302019-06-302018-06-302015-06-302014-06-302013-06-302012-06-302011-06-302010-06-30
Value12385456533923209.6215.508
Percentage of DeferredTaxLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet

us-gaap:DeferredTaxAssetsNet


Deferred
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-302010-06-30
Value636540474848464744545659
Percentage of DeferredTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-302010-06-302009-06-302008-06-30
Value5230000.04955000.04979000.03988000.03533000.02915000.02604000.02364000.02655000.01539000.01181000.01842000.01860000.02004000.0
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-302010-06-30
Value8542000.07494000.05597000.038000.01831000.01347000.0917000.0011000.0157000.0158000.0997000.0
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsValuationAllowance us-gaap:StatementGeographical

country:CA


Deferred
Period End2021-06-302020-06-30
Value8498000.07450000.0
Percentage of DeferredTaxAssetsValuationAllowance99.599.4

ait:ContractwithCustomerAssetPeriodIncreaseDecrease

ait:ContractwithCustomerAssetPeriodIncreaseDecrease


Contractwith
Period End2021-06-302021-03-312020-12-312020-09-30
Value39.653.6-26.413.1
Percentage of ContractwithCustomerAssetPeriodIncreaseDecrease100.0100.0100.0100.0

ait:Corporateandotherexpenseincomenet

ait:Corporateandotherexpenseincomenet


Corporateandotherexpenseincomenet
Period End2021-03-312020-12-312020-09-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-03-312017-12-31
Value1313131514151415162113
Percentage of Corporateandotherexpenseincomenet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ait:OtherNet

ait:OtherNet


Other
Period End2021-03-312020-12-312020-09-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-03-312017-12-312017-09-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value58000.0109000.022000.0-115000.034000.0-7000.035000.0218000.0-98000.0-8000.0-76000.092000.0145000.0-96000.0-82000.0-66000.0167000.0-182000.0-27000.0-68000.0168000.0-70000.0-99000.0-76000.0149000.0-77000.0-67000.0-66000.0194000.0-56000.0-63000.0-54000.0253000.0-105000.042000.0225000.0117000.0-82000.0142000.0
Percentage of OtherNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ait:ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesExercisesInPeriod us-gaap:AwardType, us-gaap:StatementEquityComponents

ait:ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesExercisesInPeriod

us-gaap:PerformanceShares, us-gaap:CommonStock


Share
Period End2020-09-302019-09-302018-09-30
Value22000.036000.018000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesExercisesInPeriod100.0100.0100.0

ait:UnrealizedGainLossesGainsOnAssetsHeldUnderTrustForANonqualifiedDeferredCompensationPlan

ait:UnrealizedGainLossesGainsOnAssetsHeldUnderTrustForANonqualifiedDeferredCompensationPlan


Unrealized
Period End2021-03-312020-12-312020-09-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-03-312017-12-31
Value642000.01643000.0819000.0-2182000.0766000.055000.01075000.0-1179000.0342000.00417000.0
Percentage of UnrealizedGainLossesGainsOnAssetsHeldUnderTrustForANonqualifiedDeferredCompensationPlan100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions us-gaap:AwardType, us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions

ait:StockOptionsAndStockAppreciationRights, us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-03-312020-12-312020-09-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-03-312017-12-312017-09-30
Value-379000.0-3116000.0-277000.0-378000.0-185000.0-177000.0-197000.0-7000.0-855000.0-169000.0-171000.0-80000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PerformanceShares, us-gaap:AdditionalPaidInCapital


Adjustments
Period End2020-09-302019-09-302018-09-302017-09-30
Value-985000.0-1540000.0-844000.0-273000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions355.6870.198.7341.2

us-gaap:RestrictedStockUnitsRSU, us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-03-312020-09-302019-09-302018-12-312018-09-302017-12-312017-09-30
Value-147000.0-593000.0-631000.0-140000.0-760000.0-54000.0-616000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions38.8214.1356.52000.088.931.6770.0

us-gaap:BusinessCombinationConsiderationTransferred1 us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationConsiderationTransferred1

ait:AdvancedControlSolutions


Business
Period End2021-03-312019-12-31
Value1717
Percentage of BusinessCombinationConsiderationTransferred1100.0100.0

ait:GibsonEngineering


Business
Period End2021-03-312019-12-31
Value1515
Percentage of BusinessCombinationConsiderationTransferred186.485.5

ait:OlympusControls


Business
Period End2021-03-312020-03-312019-12-312019-09-30
Value36363534
Percentage of BusinessCombinationConsiderationTransferred1204.80.0201.20.0

us-gaap:CommonStockDividendsPerShareCashPaid

us-gaap:CommonStockDividendsPerShareCashPaid


Common
Period End2021-03-312020-12-312020-09-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value0.330.320.320.320.310.310.310.310.30.30.30.30.290.290.290.290.280.280.280.280.270.270.270.270.250.250.250.250.230.230.230.210.210.210.190.190.190.170.170.170.150.150.15
Percentage of CommonStockDividendsPerShareCashPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanOtherCosts

us-gaap:DefinedBenefitPlanOtherCosts


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value70000.071000.071000.071000.0-30000.0-30000.0-30000.0-30000.0-19000.0-22000.0-22000.0-22000.065000.059000.061000.060000.0194000.0201000.0200000.0201000.0
Percentage of DefinedBenefitPlanOtherCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Depreciation

us-gaap:Depreciation


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value5.1395.085.2095.3525.1995.385.3945.2235.1915.0265.0384.9815.0774.7134.0813.9273.9423.8773.8373.653.9254.0314.083.933.7864.4614.124.2113.8583.3273.3613.4313.2673.1983.0143.0222.8482.792.782.8182.7682.972.7832.7132.8522.843
Percentage of Depreciation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Depreciation us-gaap:StatementBusinessSegments

ait:FluidPowerFlowControlSegment


Depreciationus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.8610.850.9570.9570.8971.0071.1141.0451.01.0571.1271.07
Percentage of Depreciation16.816.718.417.917.318.720.720.019.321.022.421.5

ait:ServiceCenterBasedDistributionSegment


Depreciationus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value4.2784.234.2524.3954.3024.3734.284.178
Percentage of Depreciation83.283.381.682.182.781.379.380.0

us-gaap:OperatingSegments


Depreciationus-gaap:
Period End2020-09-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-03-312017-12-312017-09-302016-09-30
Value5.3525.385.3945.2235.0265.0384.9814.7134.0813.9273.65
Percentage of Depreciation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsCommonStockCash us-gaap:StatementEquityComponents

us-gaap:DividendsCommonStockCash

us-gaap:Parent


Dividends
Period End2021-03-312020-12-312020-09-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-03-312017-12-312017-09-30
Value12120.01812120.0211110.01311110.002
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RetainedEarnings


Dividends
Period End2021-03-312020-12-312020-09-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-03-312017-12-312017-09-30
Value12120.01812120.0211110.01311110.002
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectOfExchangeRateOnCashAndCashEquivalents

us-gaap:EffectOfExchangeRateOnCashAndCashEquivalents


Effect
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1365000.0-258000.03103000.01254000.02029000.0-4151000.0-20000.0-598000.0391000.0339000.0-1053000.0432000.0-1575000.0380000.0-1035000.01641000.01280000.01119000.0-1280000.0-299000.0-998000.01956000.0-998000.0-3545000.0-1329000.0-3291000.0-1255000.0-1450000.01513000.0-849000.0-1236000.0-18000.0-928000.0-507000.0-155000.01765000.0-1892000.01240000.0-1685000.0-485000.0534000.01700000.01149000.0-500000.0149000.0189000.0
Percentage of EffectOfExchangeRateOnCashAndCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinitelivedIntangibleAssetsAcquired1

us-gaap:FinitelivedIntangibleAssetsAcquired1


Finitelived
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302018-06-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value0.01.330.00.0-0.264120.00.02.085140.2184.392-0.2280.0011759750.04
Percentage of FinitelivedIntangibleAssetsAcquired10.0100.00.00.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinitelivedIntangibleAssetsAcquired1 us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships


Finitelived
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value0.0-1.430.00.0-5.504120.02.65512-0.673.6-0.1720.0165163-0.06
Percentage of FinitelivedIntangibleAssetsAcquired10.0-107.50.00.02084.8100.00.0127.383.0-307.382.075.40.093.886.284.4-150.0

us-gaap:OtherIntangibleAssets


Finitelived
Period End2021-06-302021-03-312020-06-302020-03-31
Value0.00.570.00.0
Percentage of FinitelivedIntangibleAssetsAcquired10.042.90.00.0

us-gaap:TradeNames


Finitelived
Period End2021-06-302021-03-312020-06-302020-03-312019-06-302018-06-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value0.02.190.00.00.00.0-0.572.2690.530.66-0.0510.00.756.928100.04
Percentage of FinitelivedIntangibleAssetsAcquired10.0164.70.00.00.00.0-27.315.2243.115.022.40.04.211.614.1100.0

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax


Foreign
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-355000.0485000.0-1805000.0-416000.0-704000.03501000.0-556000.0222000.0-237000.0-63000.0-7000.0-27000.0289000.0-130000.0-260000.0311000.0-7000.0-544000.0193000.0150000.0-61000.0-307000.0-148000.0-523000.0-1098000.0474000.0-574000.0-54000.0152000.0-46000.0-302000.0-605000.0-513000.0231000.0343000.081000.0-421000.0385000.0-1047000.0510000.0-725000.0333000.0-31000.0117000.0
Percentage of ForeignCurrencyTransactionGainLossBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GoodwillAndIntangibleAssetImpairment

us-gaap:GoodwillAndIntangibleAssetImpairment


Goodwill
Period End2021-06-302020-06-302020-03-31
Value0.00.0131
Percentage of GoodwillAndIntangibleAssetImpairment0.00.0100.0

us-gaap:GoodwillTranslationAndPurchaseAccountingAdjustments

us-gaap:GoodwillTranslationAndPurchaseAccountingAdjustments


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value812000.0190000.01961000.0763000.01099000.0-3528000.0653000.0105000.0718000.0301000.0-1298000.0886000.0-1351000.0-236000.0-833000.01239000.0794000.0753000.0-1574000.0-383000.0-306000.01663000.0-2095000.0-8142000.01912000.0-8176000.0-4853000.0-5699000.03222000.0-292000.0-1207000.0124000.0-1108000.0-754000.0
Percentage of GoodwillTranslationAndPurchaseAccountingAdjustments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GoodwillTranslationAndPurchaseAccountingAdjustments us-gaap:StatementBusinessSegments

ait:ServiceCenterBasedDistributionSegment


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value812000.0190000.01961000.0763000.01099000.0-3528000.0653000.0105000.0718000.0301000.0-1298000.0886000.0-1351000.0-236000.0-833000.01239000.0794000.0753000.0-1130000.0-383000.0-306000.01663000.0-2095000.0-8142000.01912000.0-8176000.0-4853000.0-5699000.03222000.0-292000.0-1207000.0124000.0-1108000.0-754000.0
Percentage of GoodwillTranslationAndPurchaseAccountingAdjustments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.071.8100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ImpairmentOfIntangibleAssetsExcludingGoodwill

us-gaap:ImpairmentOfIntangibleAssetsExcludingGoodwill


Impairment
Period End2020-12-31
Value49
Percentage of ImpairmentOfIntangibleAssetsExcludingGoodwill100.0

us-gaap:ImpairmentOfIntangibleAssetsExcludingGoodwill us-gaap:StatementBusinessSegments

ait:ServiceCenterBasedDistributionSegment


Impairment
Period End2021-03-312020-12-31
Value0.049
Percentage of ImpairmentOfIntangibleAssetsExcludingGoodwill0.0100.0

us-gaap:ImpairmentOfIntangibleAssetsFinitelived

us-gaap:ImpairmentOfIntangibleAssetsFinitelived


Impairment
Period End2021-06-302020-12-312019-06-302019-03-312018-06-302018-03-31
Value0.0450.0310.00.0
Percentage of ImpairmentOfIntangibleAssetsFinitelived0.0100.00.0100.00.00.0

us-gaap:IncreaseDecreaseInContractWithCustomerAsset

us-gaap:IncreaseDecreaseInContractWithCustomerAsset


Increase
Period End2021-06-302021-03-312020-12-312020-09-30
Value3340000.04524000.0-2222000.01101000.0
Percentage of IncreaseDecreaseInContractWithCustomerAsset100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOperatingCapital

us-gaap:IncreaseDecreaseInOperatingCapital


Increase
Period End2021-03-312020-12-312020-09-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-03-312017-12-312017-09-302017-03-312016-12-312016-09-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-03-312011-12-312011-09-302011-03-312010-12-312010-09-302010-03-31
Value18-27.446-24.559-13.0662.9788.682502.738532629359.12330-2.835-22.85915232.7382158231818-2.97929136.3791517-8.6591324-37.374
Percentage of IncreaseDecreaseInOperatingCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InventoryLIFOReservePeriodCharge

us-gaap:InventoryLIFOReservePeriodCharge


Inventory
Period End2021-03-312020-12-312020-09-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302012-03-312011-12-312011-06-302011-03-312010-12-31
Value0.7810.8631.1331.951.9290.3583.652.6761.6710.00.07.78-0.356-1.823
Percentage of InventoryLIFOReservePeriodCharge100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0

us-gaap:LifeInsuranceCorporateOrBankOwnedChangeInValue

us-gaap:LifeInsuranceCorporateOrBankOwnedChangeInValue


Life
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-31
Value-106000.0543000.036000.0-177000.0-68000.0194000.0-59000.0-300000.099000.0187000.0280000.0-87000.0133000.01488000.0-75000.0160000.0
Percentage of LifeInsuranceCorporateOrBankOwnedChangeInValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseImpairmentLoss

us-gaap:OperatingLeaseImpairmentLoss


Operating
Period End2021-06-302020-12-31
Value02512000.0
Percentage of OperatingLeaseImpairmentLoss0.0100.0

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax

us-gaap:AccumulatedTranslationAdjustment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value4.818-0.434145.4397.85-28.2575.556-3.9133.1232.767-9.6995.453-10.263-0.378-6.0678.1596.3858.132-9.93-2.349-3.19613-6.743-27.516
Percentage of OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value3.4416.181125.4264.356-38.6976.899-5.556-2.955-2.369-9.6995.453-9.739-0.372-6.058.1567.6338.133-9.896-2.334-4.42913-6.751-27.549
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeTax

us-gaap:OtherComprehensiveIncomeLossBeforeTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value6.07511148.2956.571-41.6588.157-5.804-4.162-3.988-10.3485.589-9.961-0.375-6.0078.1418.5668.268-9.765-2.196-5.09113-6.629-27.4363.749-26.043-17.393-19.07412-3.731-7.2490.679-0.983-5.206-0.3769.242-13.786.076
Percentage of OtherComprehensiveIncomeLossBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax


Other
Period End2021-03-312020-12-312020-09-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-03-31
Value6615000.0-2058000.0-13000.0-10440000.01343000.0-1643000.0-5136000.0000
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-2064000.06615000.0-2058000.0-13000.0-1832000.0-10440000.01343000.0-1643000.0-5751000.0-5136000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax0.0100.0100.0100.00.0100.0100.0100.00.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-2767000.08758000.0-2724000.0-17000.0-2366000.0-13891000.01822000.0-2180000.0-7505000.0-6941000.00000
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax


Other
Period End2021-03-312020-12-312020-09-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-03-31
Value2143000.0-666000.0-4000.0-3451000.0479000.0-537000.0-1805000.0000
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2288000.02260000.02131000.02032000.0-5275000.0763000.0686000.0322000.0-246000.063000.00000
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome


Other
Period End2021-03-312020-12-312020-09-302020-03-312019-12-312019-09-302019-03-31
Value2260000.02131000.02032000.0763000.0686000.0322000.063000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-3049000.0-2992000.0-2822000.0-2690000.0-2288000.0-1017000.0-906000.0427000.0-159000.0-85000.00000
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-761000.0-732000.0-691000.0-658000.0-555000.0-254000.0-220000.0-105000.0-83000.022000.00000
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value4.823-0.496145.5548.857-28.7675.445-4.0343.6322.945-10.275.714-10.65-0.353-6.0318.1596.3858.132-9.93-2.349-3.19613-6.743-27.5164.535-26.105-17.558-19.10511-3.876-7.410.55-4.299-5.466-0.5949.001-9.2245.912
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value5000.0-62000.038000.0115000.01007000.0-510000.0-111000.0-121000.0509000.0178000.0-571000.0261000.0-387000.025000.036000.000000000000000000000000
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value737000.052000.051000.051000.0-1674000.0-13000.0-12000.0-13000.0-384000.0-56000.0-57000.0-56000.09000.0-14000.0-14000.0-4000.01316000.077000.077000.077000.0-1136000.079000.078000.079000.0
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value67000.068000.067000.068000.0-16000.0-17000.0-16000.0-17000.0-76000.0-77000.0-78000.0-75000.0-18000.0-19000.0-22000.0-14000.0129000.0125000.0125000.0127000.0131000.0130000.0127000.0130000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value50000.052000.051000.051000.0-12000.0-13000.0-12000.0-13000.0-57000.0-56000.0-57000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax


Other
Period End2021-03-312020-12-312020-09-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-03-312017-12-312017-09-302017-03-312016-12-312016-09-302016-03-312015-12-312015-09-30
Value52000.051000.051000.0-13000.0-12000.0-13000.0-56000.0-57000.0-56000.0-14000.0-14000.0-4000.077000.077000.077000.079000.078000.079000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax


Other
Period End2021-03-312020-12-312020-09-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-03-312017-12-312017-09-302017-03-312016-12-312016-09-302016-03-312015-12-312015-09-30
Value16000.016000.017000.0-4000.0-4000.0-4000.0-21000.0-21000.0-19000.0-5000.0-8000.010000.048000.048000.0-50000.051000.049000.0-51000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossTax

us-gaap:OtherComprehensiveIncomeLossTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value296000.02829000.079000.0786000.0494000.0-3711000.0584000.0-557000.0-1270000.0-1626000.0-592000.0242000.0262000.011000.057000.0-11000.0856000.058000.054000.061000.0-741000.065000.044000.034000.0-303000.024000.060000.014000.0557000.053000.061000.048000.01251000.099000.085000.094000.0-1753000.045000.04619000.098000.0
Percentage of OtherComprehensiveIncomeLossTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherNoncashIncomeExpense

us-gaap:OtherNoncashIncomeExpense


Other
Period End2021-03-312020-12-312020-09-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-03-312011-12-312011-09-302011-03-312010-12-312010-09-30
Value9.999.736-6.0519.962-2.493-2.612-4.4483.016-0.1211.553-0.0640.4030.091-0.430.749-0.3650.74-1.2273.097-1.6460.565-2.016-0.404-0.733-0.3743.327-0.186-0.3120.4410.505-0.353-1.531-1.577-0.256-2.135-0.802-0.317
Percentage of OtherNoncashIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromDerivativeInstrumentFinancingActivities

us-gaap:PaymentsForProceedsFromDerivativeInstrumentFinancingActivities


Payments
Period End2021-06-302021-03-31
Value1615000.01573000.0
Percentage of PaymentsForProceedsFromDerivativeInstrumentFinancingActivities100.0100.0

us-gaap:PaymentsOfDebtIssuanceCosts

us-gaap:PaymentsOfDebtIssuanceCosts


Payments
Period End2021-06-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value073000.06000.016000.00090000.00685000.003298000.0000
Percentage of PaymentsOfDebtIssuanceCosts0.0100.0100.0100.00.00.0100.00.0100.00.0100.00.00.00.0

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value4.0930.4193.7741.7970.0030.6160.2341.7540.1210.0530.1153.2030.1470.20.2421.0560.1111.2921.0940.9870.0850.0340.4010.502
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired


Payments
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.207-1.0550.00.8470.687350.0306.90.0-2.4957730.05.014-0.0052.7780.00.06.362321211-5.8590.833351291670.0170.0-0.0011.53630350.374130.01.2412.7650.00.042270.00.0
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired100.0100.00.0100.0100.0100.00.0100.0100.00.0100.0100.00.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.00.00.0

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value461000.0399000.099000.0193000.0139000.01484000.0237000.088000.0354000.0405000.0167000.077000.0264000.0118000.0313000.0283000.0200000.076000.0901000.01747000.0231000.0178000.081000.0113000.01481000.0264000.0184000.03000.0529000.024000.0141000.0183000.0242000.0308000.0186000.0243000.049000.0228000.0344000.0637000.0247000.0955000.083000.041000.089000.022000.0
Percentage of ProceedsFromSaleOfPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ProceedsFromStockOptionsExercised


Proceeds
Period End2021-06-302021-03-312020-06-302020-03-312019-06-302019-03-312018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value00000097000.05000.000350000.0111000.087000.0108000.0483000.0149000.0264000.003000.0112000.01000.0-2000.097000.001000.01000.0461000.036000.0-3000.0170000.070000.084000.0184000.0139000.0195000.0143000.0466000.0668000.0
Percentage of ProceedsFromStockOptionsExercised0.00.00.00.00.00.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome


Reclassification
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2338000.02312000.02182000.02083000.01721000.0750000.0674000.0309000.0-43000.07000.0-57000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfDebt us-gaap:LongtermDebtType

us-gaap:RepaymentsOfDebt

ait:PrudentialFacilitySeriesC


Repayments
Period End2020-09-30
Value40
Percentage of RepaymentsOfDebt100.0

us-gaap:RepaymentsOfOtherDebt

us-gaap:RepaymentsOfOtherDebt


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value1000.01206000.0617000.0521000.001663000.0576000.0201000.01000.0
Percentage of RepaymentsOfOtherDebt100.0100.0100.0100.00.0100.0100.0100.0100.0

us-gaap:RepaymentsOfOtherLongTermDebt

us-gaap:RepaymentsOfOtherLongTermDebt


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-09-30
Value499.819.81629.754.935294.9344.9354.9354.9341464.9321180.840.8390.8390.8190.8570.8380.8360.82960.6810.4430.6770.9070.690.6470.0
Percentage of RepaymentsOfOtherLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:RestrictedStockExpense

us-gaap:RestrictedStockExpense


Restricted
Period End2021-06-302021-03-312020-06-302020-03-31
Value1794000.02493000.01954000.0209000.0
Percentage of RestrictedStockExpense100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures us-gaap:AwardType, us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures

us-gaap:RestrictedStockUnitsRSU, us-gaap:CommonStock


Stock
Period End2021-03-312020-09-302019-09-302018-12-312018-09-30
Value4000.015000.016000.03000.016000.0
Percentage of StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised us-gaap:AwardType, us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

ait:StockOptionsAndStockAppreciationRights, us-gaap:CommonStock


Stock
Period End2020-12-312020-09-302020-03-312019-12-312019-09-302019-03-312018-09-30
Value71000.013000.014000.022000.05000.013000.017000.0
Percentage of StockIssuedDuringPeriodSharesStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised us-gaap:StatementEquityComponents

us-gaap:CommonStock


Stock
Period End2021-03-312020-03-312019-03-312018-09-302018-03-312017-12-312017-09-30
Value11000.014000.013000.017000.08000.03000.01000.0
Percentage of StockIssuedDuringPeriodSharesStockOptionsExercised0.0100.0100.0100.00.00.00.0

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures us-gaap:AwardType, us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures

us-gaap:RestrictedStockUnitsRSU, us-gaap:TreasuryStock


Stock
Period End2021-03-312020-09-302019-09-302018-12-312018-09-302018-03-312017-12-312017-09-30
Value-1000.096000.0200000.031000.0-198000.0-3000.08000.0-57000.0
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation us-gaap:AwardType, us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation

us-gaap:PerformanceShares, us-gaap:TreasuryStock


Stock
Period End2020-09-302019-09-302018-09-302017-09-30
Value20000.0362000.0-301000.0-24000.0
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised us-gaap:AwardType, us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised

ait:StockOptionsAndStockAppreciationRights, us-gaap:TreasuryStock


Stock
Period End2021-03-312020-12-312020-09-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-03-312017-12-312017-09-30
Value40000.0496000.012000.016000.0-47000.061000.0149000.01000.0-210000.0-18000.0-26000.014000.0
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockOptionPlanExpense

us-gaap:StockOptionPlanExpense


Stock
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value596000.0602000.0737000.0723000.0721000.0773000.0606000.0574000.0606000.0651000.0482000.0466000.0436000.0577000.0358000.0353000.0371000.0809000.0302000.0302000.0309000.0630000.0229000.0556000.0248000.0577000.0105000.0772000.0295000.0636000.0358000.0762000.0388000.0809000.0248000.0671000.0506000.0633000.0304000.0600000.0310000.01259000.0376000.0
Percentage of StockOptionPlanExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockholdersEquityOther us-gaap:StatementEquityComponents

us-gaap:StockholdersEquityOther

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-03-312020-03-312019-09-302019-03-312018-03-312017-09-30
Value-354000.0599000.0-52000.0-393000.0-361000.0-43000.0
Percentage of StockholdersEquityOther100.0100.0100.0100.0100.0100.0

us-gaap:Parent


Stockholders
Period End2021-03-312020-12-312020-09-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-03-312017-12-312017-09-30
Value-6000.048000.0-14000.0928000.022000.0-33000.06000.00-11000.017000.0-21000.0-17000.0
Percentage of StockholdersEquityOther1.70.00.0154.90.063.5-1.50.00.0-4.70.039.5

us-gaap:RetainedEarnings


Stockholders
Period End2021-03-312020-12-312020-09-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-03-312017-12-312017-09-30
Value-6000.048000.015000.0-74000.023000.0-4000.010000.0-1000.024000.025000.0-21000.03000.0
Percentage of StockholdersEquityOther1.70.00.0-12.40.07.7-2.50.00.0-6.90.0-7.0

us-gaap:TreasuryStock


Stockholders
Period End2021-03-312020-09-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-03-312017-09-30
Value354000.0-29000.0403000.0-1000.023000.0389000.01000.0-35000.0353000.023000.0
Percentage of StockholdersEquityOther-100.00.067.30.0-44.2-99.00.00.0-97.8-53.5

us-gaap:StockholdersEquityOtherShares us-gaap:StatementEquityComponents

us-gaap:StockholdersEquityOtherShares

us-gaap:CommonStock


Stockholders
Period End2021-03-312020-03-312019-09-302019-03-312018-03-312017-09-30
Value13000.015000.02000.015000.014000.02000.0
Percentage of StockholdersEquityOtherShares100.0100.0100.0100.0100.0100.0

us-gaap:StockholdersEquityPeriodIncreaseDecrease us-gaap:AwardType, us-gaap:StatementEquityComponents

us-gaap:StockholdersEquityPeriodIncreaseDecrease

ait:StockOptionsAndStockAppreciationRights, us-gaap:Parent


Stockholders
Period End2021-03-312020-12-312020-09-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-03-312017-12-312017-09-30
Value-419000.0-3612000.0-265000.0-394000.0-232000.0-116000.0-48000.0-6000.0-1065000.0-187000.0-197000.0-66000.0
Percentage of StockholdersEquityPeriodIncreaseDecrease100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PerformanceShares, us-gaap:Parent


Stockholders
Period End2020-09-302019-09-302018-09-302017-09-30
Value-1005000.0-1178000.0-1145000.0-297000.0
Percentage of StockholdersEquityPeriodIncreaseDecrease379.21015.5107.5450.0

us-gaap:RestrictedStockUnitsRSU, us-gaap:Parent


Stockholders
Period End2021-03-312020-09-302019-09-302018-12-312018-09-302018-03-312017-12-312017-09-30
Value-148000.0-497000.0-431000.0-109000.0-958000.0-3000.0-46000.0-673000.0
Percentage of StockholdersEquityPeriodIncreaseDecrease35.3187.5371.61816.790.01.623.41019.7

us-gaap:TangibleAssetImpairmentCharges

us-gaap:TangibleAssetImpairmentCharges


Tangible
Period End2021-06-302020-12-31
Value01983000.0
Percentage of TangibleAssetImpairmentCharges0.0100.0

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment


Weighted
Period End2021-03-312020-09-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-03-312017-12-312017-09-302017-03-312016-12-312016-09-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-03-312011-12-312011-09-302011-03-312010-12-312010-09-302010-03-312009-12-31
Value577000.0366000.00398000.0350000.0396000.0504000.0650000.0612000.0490000.0404000.0463000.0386000.0338000.00223000.0229000.0267000.0305000.0362000.0362000.0386000.0480000.0472000.0442000.0511000.0670000.0669000.0564000.0893000.0887000.0716000.0581000.0532000.0
Percentage of WeightedAverageNumberDilutedSharesOutstandingAdjustment100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ait:DeferredTaxAssetsLeasingArrangements

ait:DeferredTaxAssetsLeasingArrangements


Deferred
Period End2021-06-302020-06-302019-06-30
Value23240.0
Percentage of DeferredTaxAssetsLeasingArrangements100.0100.00.0

ait:FundingfromHoldbackPayments us-gaap:BusinessAcquisition

ait:FundingfromHoldbackPayments

ait:FluidPowerSales


Fundingfrom
Period End2021-06-302020-06-302020-03-312019-12-312018-11-02
Value0.60.60.60.61.2
Percentage of FundingfromHoldbackPayments100.0100.0100.0100.0100.0

ait:MilRocMemberDomain


Fundingfrom
Period End2021-06-302020-06-302020-03-312019-03-04
Value1.2441.6661.6664.375
Percentage of FundingfromHoldbackPayments207.3277.7277.70.0

ait:FundingfromHoldbackPayments us-gaap:BusinessAcquisition, us-gaap:FairValueByLiabilityClass

ait:MilRocMemberDomain, us-gaap:OtherCurrentLiabilities


Fundingfrom
Period End2021-06-302020-06-30
Value1.4652.709
Percentage of FundingfromHoldbackPayments244.2451.5

ait:FundingfromHoldbackPayments us-gaap:FairValueByLiabilityClass

us-gaap:OtherCurrentLiabilities


Fundingfrom
Period End2021-06-302020-06-302019-06-302018-06-302017-06-30
Value2.5692.5632.642.5920.672
Percentage of FundingfromHoldbackPayments428.2427.20.00.00.0

us-gaap:OtherLiabilities


Fundingfrom
Period End2021-06-302020-06-302019-06-302018-06-302017-06-30
Value0.9691.4482.3430.2832.384
Percentage of FundingfromHoldbackPayments161.5241.30.00.00.0

ait:InventoryPercentFromOneThousandNineHundredAndSeventysLifoLayers

ait:InventoryPercentFromOneThousandNineHundredAndSeventysLifoLayers


Inventory
Period End2021-06-30
Value19.8
Percentage of InventoryPercentFromOneThousandNineHundredAndSeventysLifoLayers100.0

ait:TreasurySharesRestrictedAsCollateralUnderEscrow

ait:TreasurySharesRestrictedAsCollateralUnderEscrow


Treasury
Period End2021-06-30
Value128000.0
Percentage of TreasurySharesRestrictedAsCollateralUnderEscrow100.0

dei:EntityCommonStockSharesOutstanding

dei:EntityCommonStockSharesOutstanding


Entity
Period End2021-08-062021-04-162021-01-152020-10-16
Value38383838
Percentage of EntityCommonStockSharesOutstanding100.0100.0100.0100.0

dei:EntityPublicFloat

dei:EntityPublicFloat


Entity
Period End2020-12-31
Value2993
Percentage of EntityPublicFloat100.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-06-302016-06-30
Value-8581000.0-8805000.0-17680000.0-17753000.0-19772000.0-19673000.0-9996000.0-12025000.0-10704000.0-5073000.000000
Percentage of AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-06-30
Value-3673000.0-4410000.0-4462000.0-4513000.0-4564000.0-2890000.0-2877000.0-2865000.0-2852000.0-2468000.0-2412000.0-2355000.0-2299000.0-2308000.0-2294000.0-2280000.0-2276000.0-3592000.0-3669000.0-3746000.0-3823000.0-2687000.0-2766000.0-2844000.0-2923000.0-2625000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax

us-gaap:AccumulatedTranslationAdjustment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-06-30
Value-80838000.0-85656000.0-85222000.0-99655000.0-105090000.0-112940000.0-84687000.0-90243000.0-86330000.0-89453000.0-92220000.0-82521000.0-87974000.0-77733000.0-77355000.0-71288000.0-79447000.0-85832000.0-93964000.0-84034000.0-81685000.0-78489000.0-91503000.0-84760000.0-57244000.0989000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent


Allowance
Period End2021-06-302020-06-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-30
Value16131013131413119.659.8129.6281010111111111110101010108.4797.3357.5827.7378.5178.1068.2398.3328.577.3767.4287.0166.8826.3086.379
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BuildingsAndImprovementsGross

us-gaap:BuildingsAndImprovementsGross


Buildings
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-302010-06-30
Value1071041011049797898975747373
Percentage of BuildingsAndImprovementsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessAcquisitionPercentageOfVotingInterestsAcquired us-gaap:BusinessAcquisition

us-gaap:BusinessAcquisitionPercentageOfVotingInterestsAcquired

ait:GibsonEngineering


Business
Period End2020-12-31
Value100.0
Percentage of BusinessAcquisitionPercentageOfVotingInterestsAcquired100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet

ait:AdvancedControlSolutions


Business
Period End2021-06-302020-10-05
Value1.211.406
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet100.0100.0

ait:GibsonEngineering


Business
Period End2020-12-31
Value3.681
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet0.0

us-gaap:CashCashEquivalentsAndShortTermInvestments

us-gaap:CashCashEquivalentsAndShortTermInvestments


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-06-30
Value2573042882712681651289810847795654438577105676258596255636955335271696676734351567879707391175
Percentage of CashCashEquivalentsAndShortTermInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerAssetNet

us-gaap:ContractWithCustomerAssetNet


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value15117.3149.5368.4357.697.0387.3388.928.7329.324
Percentage of ContractWithCustomerAssetNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerRefundLiability

us-gaap:ContractWithCustomerRefundLiability


Contract
Period End2021-06-302020-06-302019-06-302018-06-30
Value9772000.09883000.07265000.02602000.0
Percentage of ContractWithCustomerRefundLiability100.0100.0100.0100.0

us-gaap:DebtInstrumentCarryingAmount

us-gaap:DebtInstrumentCarryingAmount


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-06-30
Value829853863872935959
Percentage of DebtInstrumentCarryingAmount100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentFaceAmount us-gaap:LongtermDebtType

us-gaap:DebtInstrumentFaceAmount

ait:PrudentialFacilitySeriesE


Debt
Period End2021-06-30
Value25
Percentage of DebtInstrumentFaceAmount100.0

ait:StateofOhioAssumedDebt


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value2.3592.3592.3592.3592.3592.3592.3592.3592.3592.3592.3592.3592.3592.3592.3592.3592.3592.3592.3592.3592.3592.3592.3592.3592.3592.42.42.42.359
Percentage of DebtInstrumentFaceAmount9.40.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivables


Debt
Period End2021-06-302021-03-312020-12-312020-09-30
Value250250175175
Percentage of DebtInstrumentFaceAmount1000.00.00.00.0

us-gaap:LongTermDebt


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value780780780780780780780780780780780780780780125125125125125125
Percentage of DebtInstrumentFaceAmount3120.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DebtLongtermAndShorttermCombinedAmount

us-gaap:DebtLongtermAndShorttermCombinedAmount


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-06-30
Value828852861871933957
Percentage of DebtLongtermAndShorttermCombinedAmount100.0100.0100.0100.0100.0100.0

us-gaap:DeferredFinanceCostsCurrentGross

us-gaap:DeferredFinanceCostsCurrentGross


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-06-302019-03-312018-06-302017-06-30
Value1016000.01158000.01302000.01348000.01487000.0598000.0593000.0577000.0574000.0551000.0105000.0
Percentage of DeferredFinanceCostsCurrentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredIncomeTaxLiabilities


Deferred
Period End2021-06-302020-06-302019-06-30
Value7610394
Percentage of DeferredIncomeTaxLiabilities100.0100.0100.0

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsGross


Deferred
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-302010-06-30
Value727245475049474744555660
Percentage of DeferredTaxAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsHedgingTransactions

us-gaap:DeferredTaxAssetsHedgingTransactions


Deferred
Period End2021-06-302020-06-302019-06-302018-06-30
Value2794000.06406000.03498000.00
Percentage of DeferredTaxAssetsHedgingTransactions100.0100.0100.00.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards


Deferred
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-302010-06-30
Value9.2628.8598.466115.7294.960.860.3860.4320.4440.4320.843
Percentage of DeferredTaxAssetsOperatingLossCarryforwards100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsForeign

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsForeign


Deferred
Period End2021-06-302020-06-302019-06-302018-06-30
Value35292721
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsForeign100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal


Deferred
Period End2021-06-302020-06-302019-06-302018-06-30
Value1034000.01177000.02098000.01549000.0
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsOther


Deferred
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-302010-06-30
Value799000.0757000.01173000.0199000.0119000.083000.0289000.0281000.0569000.0480000.0677000.0939000.0
Percentage of DeferredTaxAssetsOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits


Deferred
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-302010-06-30
Value171717192625283033373634
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals


Deferred
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-302010-06-30
Value1815131311119.1158.3646.1316.1515.4988.442
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesDeferredExpenseCapitalizedInventoryCosts

us-gaap:DeferredTaxLiabilitiesDeferredExpenseCapitalizedInventoryCosts


Deferred
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-302010-06-30
Value9215000.08284000.08600000.08196000.07447000.04785000.05499000.06490000.09057000.06021000.04755000.04764000.0
Percentage of DeferredTaxLiabilitiesDeferredExpenseCapitalizedInventoryCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssets

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssets


Deferred
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-30
Value385875863033
Percentage of DeferredTaxLiabilitiesGoodwillAndIntangibleAssets100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesLeasingArrangements

us-gaap:DeferredTaxLiabilitiesLeasingArrangements


Deferred
Period End2021-06-302020-06-302019-06-30
Value22230.0
Percentage of DeferredTaxLiabilitiesLeasingArrangements100.0100.00.0

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment


Deferred
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-302010-06-30
Value6.21413109.294109.8929.3281011112.0620.48
Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths


Defined
Period End2021-06-30
Value800000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree


Defined
Period End2021-06-30
Value200000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree100.0

us-gaap:DerivativeAmountOfHedgedItem

us-gaap:DerivativeAmountOfHedgedItem


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value420420420431431431431463463463
Percentage of DerivativeAmountOfHedgedItem100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeFixedInterestRate

us-gaap:DerivativeFixedInterestRate


Derivative
Period End2021-06-302020-06-302020-03-312019-12-312019-06-30
Value1.630.04360.04360.04360.0436
Percentage of DerivativeFixedInterestRate100.0100.0100.0100.0100.0

us-gaap:DerivativeVariableInterestRate

us-gaap:DerivativeVariableInterestRate


Derivative
Period End2021-06-302020-06-30
Value3.384.36
Percentage of DerivativeVariableInterestRate100.0100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-30
Value7780676561695663676956627367484958574446575140436354544755464845635452466356514465554250
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized


Employee
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-30
Value1311109.1848.9528.2597.3917.6397.6017.4346.73
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized us-gaap:AwardType

ait:RestrictedStockAndRestrictedStockUnits


Employee
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-30
Value5.3523.0281.8462.1732.1492.1331.8982.0242.76
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized40.025.818.423.724.025.825.726.536.3

ait:StockOptionsAndStockAppreciationRights


Employee
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-30
Value2.8484.1134.2163.7292.8932.1931.7921.9472.193
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized21.335.141.940.632.326.624.225.528.9

us-gaap:PerformanceShares


Employee
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-30
Value5.1724.583.9943.2823.913.9333.7013.6682.648
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized38.739.139.735.743.747.650.148.034.8

us-gaap:FIFOInventoryAmount

us-gaap:FIFOInventoryAmount


F
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-302010-06-30
Value387431473443373380397363323302280268
Percentage of FIFOInventoryAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-06-30
Value1911831752172071961911801731631771681561491401381331271201161111059792888177726661605856545148444239373523
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization us-gaap:FiniteLivedIntangibleAssetsByMajorClass

ait:VendorRelationships


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-06-30
Value9.8599.6669.4779.178.9348.6298.5618.3158.1567.9687.7587.5587.3827.2237.0239.4049.1418.7848.3078.2078.0037.8737.5457.2957.2587.0326.8786.7936.6286.2925.9775.6845.4435.2334.934.8784.54.3684.0043.696
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization5.15.35.44.24.34.44.54.64.74.94.44.54.74.85.06.86.96.96.97.07.27.57.77.98.28.68.99.410.010.29.99.89.69.69.610.110.110.310.210.5

us-gaap:CustomerRelationships


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value143137131170162154150142135127141134125117110106102969189847973696560575248444341383634322928262423
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization75.074.974.678.478.578.678.978.778.378.379.679.779.778.478.376.876.976.276.276.376.175.775.274.874.674.173.973.172.572.171.570.868.867.067.266.766.966.666.566.365.8

us-gaap:OtherIntangibleAssets


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-06-302011-09-302011-06-30
Value0.3720.2930.4891.0310.9480.8460.7252.2493.8873.696
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization0.20.20.30.50.50.40.41.310.410.5

us-gaap:TradeNames


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value37363436343231292725262422222020191817161615141313121111109.7559.4368.9878.6439.1478.5378.0177.4287.0666.4396.0845.666
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization19.619.719.716.916.816.616.316.115.715.614.714.514.315.014.814.614.514.514.614.414.514.715.015.014.915.215.215.515.615.815.715.515.316.816.716.616.616.616.416.316.1

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths


Finite
Period End2021-06-302021-03-312020-12-312020-09-30
Value31313136
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear


Finite
Period End2021-03-312020-12-312020-09-30
Value8.31628
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive


Finite
Period End2021-06-302021-03-312020-12-312020-09-30
Value21212124
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFive100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour


Finite
Period End2021-06-302021-03-312020-12-312020-09-30
Value23232326
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFour100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree


Finite
Period End2021-06-302021-03-312020-12-312020-09-30
Value25252529
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearThree100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo


Finite
Period End2021-06-302021-03-312020-12-312020-09-30
Value29292934
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsGross

us-gaap:FiniteLivedIntangibleAssetsGross


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-06-30
Value471471470551550549555555542542590594592597294298296295293298302300282284287285293280226150151146147149150137128129120122123109
Percentage of FiniteLivedIntangibleAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsGross us-gaap:FiniteLivedIntangibleAssetsByMajorClass

ait:VendorRelationships


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-06-30
Value11111111111111111111111111111114141413141414141414141415151515151515151513131314
Percentage of FiniteLivedIntangibleAssetsGross2.42.42.42.12.12.02.02.02.12.11.91.91.91.93.94.84.84.84.74.74.64.75.05.05.05.15.05.46.810.210.110.510.410.510.411.610.610.711.311.5

us-gaap:CustomerRelationships


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value353352354426426425430435422422463466465467235235235233231236239236219222225224230217170106107101100101103908485777878
Percentage of FiniteLivedIntangibleAssetsGross74.974.875.377.377.377.477.478.377.977.978.578.678.678.379.979.179.278.979.079.179.178.777.878.578.578.478.677.675.470.870.669.168.367.668.766.065.765.663.863.663.3

us-gaap:OtherIntangibleAssets


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-06-302011-09-302011-06-30
Value2.072.071.7752.0782.0782.0662.0352.7021314
Percentage of FiniteLivedIntangibleAssetsGross0.40.40.40.40.40.40.40.511.411.5

us-gaap:TradeNames


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value104105103111111111111107105105112113112114444443434343444542424242434336262626262726252525252525
Percentage of FiniteLivedIntangibleAssetsGross22.222.321.920.220.220.220.119.419.519.519.119.019.119.215.014.814.814.814.814.714.715.014.915.014.914.914.815.416.317.517.418.118.118.617.518.820.019.921.121.021.0

us-gaap:GoodwillImpairedAccumulatedImpairmentLoss us-gaap:StatementBusinessSegments

us-gaap:GoodwillImpairedAccumulatedImpairmentLoss

ait:FluidPowerFlowControlSegment


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-06-302018-06-302018-03-31
Value16716716716716716736363636
Percentage of GoodwillImpairedAccumulatedImpairmentLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeTaxExaminationPenaltiesAndInterestAccrued

us-gaap:IncomeTaxExaminationPenaltiesAndInterestAccrued


Income
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-30
Value1238000.01094000.0838000.0677000.0787000.0625000.0497000.0449000.0433000.0
Percentage of IncomeTaxExaminationPenaltiesAndInterestAccrued100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestRateCashFlowHedgeLiabilityAtFairValue

us-gaap:InterestRateCashFlowHedgeLiabilityAtFairValue


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-06-30
Value1413232326261314
Percentage of InterestRateCashFlowHedgeLiabilityAtFairValue100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InventoryGross

us-gaap:InventoryGross


Inventory
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-302010-06-30
Value514544599561482485514487427373341316
Percentage of InventoryGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:InvestmentsFairValueDisclosure

us-gaap:FairValueInputsLevel1


Investments
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-30
Value16121110109.0979.3311101010
Percentage of InvestmentsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Investments
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value1515131210121111109.73111010111010109.8889.6279.0978.8458.858.9129.339.8289.8761011101110109.95510101010109.60810
Percentage of InvestmentsFairValueDisclosure0.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2021-06-30
Value29
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths100.0

us-gaap:LettersOfCreditOutstandingAmount

us-gaap:LettersOfCreditOutstandingAmount


Letters
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-06-30
Value4540000.04548000.04559000.04499000.04475000.03788000.03788000.03087000.02698000.02698000.02698000.02698000.02698000.02698000.02698000.02698000.02698000.02698000.02698000.02698000.02698000.02000000.02000000.01465000.01841000.01841000.0
Percentage of LettersOfCreditOutstandingAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LettersOfCreditOutstandingAmount us-gaap:CreditFacility

us-gaap:RevolvingCreditFacility


Letters
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value200000.0200000.0681000.0731000.01873000.01786000.01776000.02462000.03215000.03290000.04674000.04573000.03625000.03637000.02459000.02534000.02441000.02748000.02704000.02726000.02707000.03718000.03677000.03764000.03764000.06800000.08700000.08900000.08723000.0
Percentage of LettersOfCreditOutstandingAmount4.44.414.916.241.947.146.979.8119.2121.9173.2169.5134.4134.891.193.990.5101.9100.2101.0100.3185.9183.8256.9204.50.00.00.0473.8

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity us-gaap:CreditFacility

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity

us-gaap:RevolvingCreditFacility


Line
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value249249249249248248248247246227245245226158224247247218213236214171176599423623872
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths


Long
Period End2021-06-30
Value44
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour


Long
Period End2021-06-30
Value25
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree


Long
Period End2021-06-30
Value213
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo


Long
Period End2021-06-30
Value546
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo100.0

us-gaap:LongTermDebtPercentageBearingFixedInterestRate us-gaap:LongtermDebtType

us-gaap:LongTermDebtPercentageBearingFixedInterestRate

ait:PrudentialFacilitySeriesC


Long
Period End2021-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-09-302016-06-302015-09-302015-06-302014-09-302014-07-01
Value3.190.03190.03190.03190.03190.03190.03190.03190.03190.03190.03190.03190.03190.03190.03190.03190.03190.03190.0319
Percentage of LongTermDebtPercentageBearingFixedInterestRate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ait:PrudentialFacilitySeriesD


Long
Period End2021-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-09-302016-06-302015-09-302015-06-30
Value3.210.03210.03210.03210.03210.03210.03210.03210.03210.03210.03210.03210.03210.03210.03210.03210.0321
Percentage of LongTermDebtPercentageBearingFixedInterestRate100.6100.6100.6100.6100.6100.6100.6100.6100.6100.6100.6100.6100.6100.6100.6100.6100.6

ait:PrudentialFacilitySeriesE


Long
Period End2021-06-302019-06-30
Value3.080.0308
Percentage of LongTermDebtPercentageBearingFixedInterestRate96.696.6

ait:StateofOhioAssumedDebt


Long
Period End2021-06-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value1.50.0150.0150.0150.0150.0150.0150.0150.0150.0150.0150.0150.0150.0150.0150.0150.0150.0150.0150.0150.0150.0150.0150.0150.0150.015
Percentage of LongTermDebtPercentageBearingFixedInterestRate47.00.047.047.047.047.047.047.047.047.047.047.047.047.00.00.047.047.00.00.047.047.00.00.047.00.0

us-gaap:LongTermDebtPercentageBearingVariableInterestRate us-gaap:LongtermDebtType

us-gaap:LongTermDebtPercentageBearingVariableInterestRate

us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivables


Long
Period End2021-06-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value1.20.01070.02520.02610.03040.03330.03390.03220.0208
Percentage of LongTermDebtPercentageBearingVariableInterestRate100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongTermDebt


Long
Period End2021-06-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-30
Value1.880.01940.02750.03560.03810.04190.04250.04310.04250.04130.03690.02630.02250.01810.01810.01560.015
Percentage of LongTermDebtPercentageBearingVariableInterestRate156.7181.3109.1136.4125.3125.8125.4133.9204.30.00.00.00.00.00.00.00.0

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent


Operating
Period End2021-06-302020-06-30
Value3.263.45
Percentage of OperatingLeaseWeightedAverageDiscountRatePercent100.0100.0

us-gaap:OperatingLossCarryforwards

us-gaap:OperatingLossCarryforwards


Operating
Period End2021-06-302020-06-30
Value8445000.07929000.0
Percentage of OperatingLossCarryforwards100.0100.0

us-gaap:PrincipalAmountOutstandingOnLoansSecuritized us-gaap:LongtermDebtType

us-gaap:PrincipalAmountOutstandingOnLoansSecuritized

us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivables


Principal
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value188162162162175175175175175
Percentage of PrincipalAmountOutstandingOnLoansSecuritized100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PropertyPlantAndEquipmentOther

us-gaap:PropertyPlantAndEquipmentOther


Property
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-302010-06-30
Value198195189177162157166157155147129113
Percentage of PropertyPlantAndEquipmentOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount

us-gaap:ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount


Reporting
Period End2021-01-012020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-06-302017-06-302017-03-312016-09-30
Value25.010.00.10.10.20.20.20.30.20.20.08
Percentage of ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount us-gaap:ReportingUnit

ait:FCXPerformanceIncMember


Reporting
Period End2021-01-012019-12-312019-09-30
Value14.00.20.2
Percentage of ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount56.0100.0100.0

country:CA


Reporting
Period End2020-09-302020-06-302020-03-312020-01-012019-06-30
Value12.00.120.1212.00.25
Percentage of ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount120.0120.0120.00.0125.0

country:MX


Reporting
Period End2020-09-302020-06-302020-03-312020-01-01
Value14.00.140.1414.0
Percentage of ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount140.0140.0140.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber

ait:RestrictedStockAndRestrictedStockUnits


Share
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-30
Value177000.0130000.089000.0116000.0116000.0118000.090000.0133000.0178000.0251000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PerformanceShares


Share
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-30
Value65000.056000.097000.093000.052000.037000.038000.041000.090000.062000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber36.743.1109.080.244.831.442.230.850.624.7

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

ait:RestrictedStockAndRestrictedStockUnits


Share
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-30
Value65.5759.9159.9351.2746.9143.5646.1837.632.9628.5
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PerformanceShares


Share
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-30
Value55.6454.6250.8845.1643.9946.0146.6635.9730.4528.8
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue84.991.284.988.193.8105.6101.095.792.4101.1

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized


Share
Period End2021-06-30
Value2250000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant


Share
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-30
Value2009000.02221000.01395000.01655000.02021000.02449000.01107000.01398000.01648000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant us-gaap:AwardType

us-gaap:PerformanceShares


Share
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-30
Value97000.079000.062000.067000.091000.096000.078000.078000.070000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant4.83.64.44.04.53.97.05.64.2

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber

ait:StockOptionsAndStockAppreciationRights


Share
Period End2021-06-30
Value728000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

ait:StockOptionsAndStockAppreciationRights


Share
Period End2021-06-30
Value52.59
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

ait:StockOptionsAndStockAppreciationRights


Share
Period End2021-06-30
Value40
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue

ait:StockOptionsAndStockAppreciationRights


Share
Period End2021-06-30
Value40
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber

ait:StockOptionsAndStockAppreciationRights


Share
Period End2021-06-30
Value1152000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice

ait:StockOptionsAndStockAppreciationRights


Share
Period End2021-06-30
Value55.69
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1 us-gaap:AwardType

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1

ait:StockOptionsAndStockAppreciationRights


Sharebased
Period End2021-06-30
Value27
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1100.0

us-gaap:TreasuryStockShares

us-gaap:TreasuryStockShares


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-30
Value1515151515151515151515151515151515151515151514141413131212121212121212121212121211111111
Percentage of TreasuryStockShares100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UndistributedEarningsOfForeignSubsidiaries

us-gaap:UndistributedEarningsOfForeignSubsidiaries


Undistributed
Period End2021-06-302019-06-30
Value121107
Percentage of UndistributedEarningsOfForeignSubsidiaries100.0100.0

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate


Unrecognized
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-302010-06-302009-06-30
Value4986000.04708000.04701000.03725000.03323000.02691000.02377000.02104000.02342000.01221000.0659000.0988000.0984000.0
Percentage of UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ValuationAllowancesAndReservesBalance us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

us-gaap:ValuationAllowancesAndReservesBalance

ait:AllowanceforDoubtfulAccount


Valuation
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-30
Value161310108.0569.329
Percentage of ValuationAllowancesAndReservesBalance100.0100.0100.0100.0100.0100.0

us-gaap:SalesReturnsAndAllowances


Valuation
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-30
Value9.7729.8837.2652.6021.5721.705
Percentage of ValuationAllowancesAndReservesBalance59.472.369.223.719.518.3

us-gaap:ValuationAllowancesAndReservesBalance us-gaap:ValuationAllowancesAndReservesType

us-gaap:AllowanceForCreditLoss


Valuation
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-30
Value262317139.62811
Percentage of ValuationAllowancesAndReservesBalance159.4172.3169.2123.7119.5118.3

us-gaap:WeightedAverageCostInventoryAmount

us-gaap:WeightedAverageCostInventoryAmount


Weighted
Period End2021-06-302020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-302011-06-302010-06-30
Value126112125117108105116123103706048
Percentage of WeightedAverageCostInventoryAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Line plots across dimensions of each concept


Operating Margin
us-gaap:StatementBusinessSegments
(None,)
Operating  Marginus-gaap: Statement Business Segments
TTM Greenblatt ROC
_
(None,)
T T M  Greenblatt  R O C_
us-gaap:OperatingIncomeLoss
us-gaap:StatementBusinessSegments
(None,)
Operating Income Lossus-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:StatementBusinessSegments
(None,)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Statement Business Segments
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:StatementGeographical
(None,)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Statement Geographical
us-gaap:Assets
us-gaap:StatementBusinessSegments
(None,)
Assetsus-gaap: Statement Business Segments
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components
us-gaap:NoncurrentAssets
us-gaap:StatementGeographical
(None,)
Noncurrent Assetsus-gaap: Statement Geographical
us-gaap:AmortizationOfIntangibleAssets
us-gaap:StatementBusinessSegments
(None,)
Amortization Of Intangible Assetsus-gaap: Statement Business Segments
us-gaap:Goodwill
us-gaap:StatementBusinessSegments
(None,)
Goodwillus-gaap: Statement Business Segments
us-gaap:Goodwill
us-gaap:ReportingUnit
(None,)
Goodwillus-gaap: Reporting Unit
us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
(None,)
Finite Lived Intangible Assets Netus-gaap: Finite Lived Intangible Assets By Major Class
us-gaap:LongTermDebt
us-gaap:LongtermDebtType
(None,)
Long Term Debtus-gaap: Longterm Debt Type
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents
(None,)
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Valueus-gaap: Statement Equity Components
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:AwardType, us-gaap:StatementEquityComponents
('ait:StockOptionsAndStockAppreciationRights', None)
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Valueus-gaap: Award Type, us-gaap: Statement Equity Components
us-gaap:PaymentsToAcquireProductiveAssets
us-gaap:StatementBusinessSegments
(None,)
Payments To Acquire Productive Assetsus-gaap: Statement Business Segments
us-gaap:DebtInstrumentInterestRateStatedPercentage
us-gaap:Range, us-gaap:LongtermDebtType
(None, 'ait:PrudentialFacility')
Debt Instrument Interest Rate Stated Percentageus-gaap: Range, us-gaap: Longterm Debt Type