AN


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

Table of contents



us-gaap:CommonStockValue

us-gaap:CommonStockSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare

us-gaap:CostOfRevenue
us-gaap:ProductOrService

us-gaap:GainLossOnInvestments

us-gaap:GrossProfit
us-gaap:ProductOrService

us-gaap:IncomeLossFromContinuingOperations

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxesPaidNet

us-gaap:InterestExpenseDebt

us-gaap:InterestPaidNet

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:OperatingIncomeLoss

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:RealizedInvestmentGainsLosses

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

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:Assets
us-gaap:StatementBusinessSegments

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:AssetsCurrent

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:AccountsReceivableNetCurrent

us-gaap:ReceivablesNetCurrent

us-gaap:InventoryNet
us-gaap:PublicUtilitiesInventory

us-gaap:OtherAssetsCurrent

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:Goodwill
us-gaap:ReportingUnit

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent

us-gaap:EquitySecuritiesFvNi

us-gaap:AccountsPayableCurrent

us-gaap:ContractWithCustomerLiabilityCurrent

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

us-gaap:OtherLiabilitiesCurrent
us-gaap:BalanceSheetLocation

us-gaap:LongTermDebtAndCapitalLeaseObligations

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:OtherLiabilitiesNoncurrent
us-gaap:BalanceSheetLocation

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:TreasuryStockValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInInventories

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:PaymentsForRepurchaseOfCommonStock
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentInterestRateStatedPercentage
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:DeferredTaxAssetsNet

us-gaap:UnrecognizedTaxBenefits

us-gaap:DeferredTaxAssetsValuationAllowance
us-gaap:ValuationAllowanceByDeferredTaxAsset

an:CorporateAndOtherIncomeAndAdjustments

an:DepreciationAndAmortizationExcludingDebtFinancingCostsAndDiscounts

an:FloorplanInterestExpense

an:IncreaseDecreaseInVehicleFloorPlanPayableNonTradeNet

an:IncreaseDecreaseInVehicleFloorplanPayableTradeNet

an:OtherFinancingPropertyEquipment

an:PercentageOfNewVehicleSalesCoreBrands

an:PercentageofRevenueCertainStates

an:SegmentIncomeLoss
us-gaap:StatementBusinessSegments
an:FloorplanFacilitiesNewVehicleUsedVehicle
an:VehicleFloorplanFacilityInterestRateDuringPeriod

us-gaap:AmortizationOfFinancingCostsAndDiscounts

us-gaap:CapitalExpendituresIncurredButNotYetPaid

us-gaap:CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations

us-gaap:ContractWithCustomerAssetReclassifiedToReceivable

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod

us-gaap:DeferredIncomeTaxesAndTaxCredits

us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss

us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount

us-gaap:GainLossOnDispositionOfAssets1

us-gaap:GoodwillImpairmentLoss
us-gaap:FairValueByMeasurementFrequency
us-gaap:ReportingUnit

us-gaap:GoodwillOtherIncreaseDecrease
us-gaap:ReportingUnit
us-gaap:FairValueByMeasurementFrequency
us-gaap:ImpairmentOfIntangibleAssetsExcludingGoodwill
us-gaap:FairValueByMeasurementFrequency, us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:ImpairmentOfIntangibleAssetsFinitelived

us-gaap:ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill
us-gaap:FairValueByMeasurementFrequency
us-gaap:ImpairmentOfLongLivedAssetsHeldForUse

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTax

us-gaap:IncreaseDecreaseInAccountsAndOtherReceivables

us-gaap:IncreaseDecreaseInOtherOperatingAssets

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:InvestmentIncomeInterest

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

us-gaap:NetCashProvidedByUsedInFinancingActivitiesContinuingOperations

us-gaap:NetCashProvidedByUsedInInvestingActivitiesContinuingOperations

us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
us-gaap:FairValueByMeasurementFrequency
us-gaap:OperatingLeaseImpairmentLoss

us-gaap:OtherNoncashIncomeExpense

us-gaap:OtherOperatingIncomeExpenseNet

us-gaap:PaymentsForProceedsFromOtherInvestingActivities
us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan
us-gaap:PaymentsForRestructuring

us-gaap:PaymentsOfDebtIssuanceCosts

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired

us-gaap:PaymentsToAcquireOtherInvestments

us-gaap:ProceedsFromDivestitureOfBusinessesNetOfCashDivested

us-gaap:ProceedsFromInsuranceSettlementInvestingActivities

us-gaap:ProceedsFromIssuanceOfSeniorLongTermDebt

us-gaap:ProceedsFromLongTermLinesOfCredit

us-gaap:ProceedsFromRepaymentsOfCommercialPaper

us-gaap:ProceedsFromSaleAndMaturityOfMarketableSecurities
us-gaap:SubsequentEventType

us-gaap:ProceedsFromSaleOfPropertyHeldForSale

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:RepaymentsOfLongTermLinesOfCredit

us-gaap:RepaymentsOfOtherDebt
us-gaap:IncomeStatementLocation, us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan
us-gaap:RestructuringAndRelatedCostIncurredCost
us-gaap:ProductOrService, us-gaap:IncomeStatementLocation, us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan
us-gaap:RestructuringPlan

us-gaap:RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
us-gaap:AwardType
us-gaap:SharesPaidForTaxWithholdingForShareBasedCompensation
us-gaap:AwardType
us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensationGross

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation
us-gaap:StatementEquityComponents

us-gaap:TangibleAssetImpairmentCharges
us-gaap:ShareRepurchaseProgram
us-gaap:TreasuryStockAcquiredAverageCostPerShare
us-gaap:StatementEquityComponents
us-gaap:TreasuryStockRetiredCostMethodAmount
us-gaap:ShareRepurchaseProgram
us-gaap:TreasuryStockSharesAcquired

us-gaap:TreasuryStockSharesRetired

us-gaap:TreasuryStockValueAcquiredCostMethod
us-gaap:ShareRepurchaseProgram
us-gaap:StatementEquityComponents

us-gaap:UnrealizedGainLossOnInvestments

an:CommercialPaperMaximumAggregateAmount

an:ContractsInTransitAndVehicleReceivables
us-gaap:DebtInstrument
an:CreditSpreadImpactLeverageRatioCreditAgreement

an:DeferredTaxAssetsLeaseLiabilities

an:DeferredTaxAssetsOperatingLossCarryforwardsAndCapitalLossCarryforwards

an:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccountsAndProvisionForLoanLosses

an:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantySelfInsuranceAndChargebacks

an:DeferredTaxLiabilitiesPropertyPlantAndEquipmentAndIntangibleAssets

an:DeferredTaxLiabilitiesRightOfUseAsset
us-gaap:DebtInstrument
an:FinanceLeasesIncludedInLongtermDebt

an:LeaseRightofUseAssets

an:Leaseliabilities

an:ManufacturerReceivables
us-gaap:RetirementPlanName
an:MultiemployerPlansPotentialWithdrawalObligationCeaseParticipation

an:ReceivablesBeforeAllowanceforCreditLossCurrent
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
an:RightofUseAssetFairValueDisclosure

an:SuretyBondsLettersOfCreditAndCashDepositsTotal

an:TradeReceivables

an:UnrecognizedTaxBenefitsDeferredTaxAssets

an:UsedVehicleFloorplanFacilityCurrentBorrowingCapacity

an:UsedVehicleFloorplanFacilityRemainingBorrowingCapacity
an:FloorplanFacilitiesNewVehicleUsedVehicle
an:VehicleFloorplanFacilityMaximumBorrowingCapacity

an:VehicleFloorplanPayable
an:FloorplanFacilitiesNewVehicleUsedVehicle
an:FloorplanPayable

us-gaap:AccountsReceivableGrossCurrent

us-gaap:AccruedIncomeTaxes

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent
us-gaap:FairValueByMeasurementBasis, us-gaap:StatementOperatingActivitiesSegment
us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent

us-gaap:CapitalizedContractCostNetNoncurrent

us-gaap:CommercialPaper

us-gaap:ContractWithCustomerAssetNetCurrent

us-gaap:ContractWithCustomerAssetNetNoncurrent

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

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet
us-gaap:DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensation
us-gaap:DeferredCompensationLiabilityCurrentAndNoncurrent

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsInventory

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities

us-gaap:DeferredTaxLiabilitiesInvestments

us-gaap:DeferredTaxLiabilitiesOther
us-gaap:FairValueByMeasurementBasis, us-gaap:StatementOperatingActivitiesSegment
us-gaap:DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueAmount
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FinanceLeaseLiability

us-gaap:FinanceLeaseLiabilityCurrent
us-gaap:BalanceSheetLocation
us-gaap:FinanceLeaseLiabilityNoncurrent

us-gaap:FinanceLeaseLiabilityPaymentsDue

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount

us-gaap:FinanceLeaseRightOfUseAsset

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:GoodwillFairValueDisclosure
us-gaap:ReportingUnit
us-gaap:GoodwillImpairedAccumulatedImpairmentLoss

us-gaap:GuaranteeObligationsMaximumExposure

us-gaap:IndefiniteLivedFranchiseRights
us-gaap:StatementBusinessSegments
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwillFairValueDisclosure

us-gaap:IntangibleAssetsGrossExcludingGoodwill

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LettersOfCreditOutstandingAmount

us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent

us-gaap:LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities
us-gaap:DebtInstrument, us-gaap:FairValueByMeasurementBasis
us-gaap:LongTermDebtFairValue

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLossCarryforwards
us-gaap:BalanceSheetLocation
us-gaap:OtherLiabilities

us-gaap:OtherReceivablesGrossCurrent
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:PropertyPlantAndEquipmentFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:StatementOperatingActivitiesSegment

us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue
us-gaap:IncomeStatementLocation, us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan
us-gaap:RestructuringAndRelatedCostExpectedCost1
us-gaap:ProductOrService, us-gaap:IncomeStatementLocation, us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan
us-gaap:RestructuringPlan
us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan
us-gaap:RestructuringReserve

us-gaap:RevenueRemainingPerformanceObligation
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
us-gaap:ShortTermDebtType
us-gaap:ShortTermDebtWeightedAverageInterestRate
us-gaap:ShareRepurchaseProgram
us-gaap:StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1
us-gaap:ShareRepurchaseProgram, us-gaap:SubsequentEventType

us-gaap:TaxCreditCarryforwardAmount

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued

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

Plots across concepts


IncomeStatement
Net Income Loss
Expenses
Other Nonoperating Income Expense
Balance Sheet
Cash And Cash Equivalents At Carrying Value
Assets
Cash And Cash Equivalents At Carrying Value
Current Assets
Cash And Cash Equivalents At Carrying Value
NonCurrent Assets
Operating Lease Right Of Use Asset
PropertyPlantAndEquipmentNet
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
Liabilities
Operating Lease Liability
Current Liabilities
Contract With Customer Liability Current
Noncurrent Liabilities
Deferred Income Tax Liabilities Net
Stockholders Equity
Common Stock Value
CashFlow
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInOperatingActivities
Increase Decrease In Inventories
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInFinancingActivities
Net Cash Provided By Used In Financing Activities
Shares
Common Stock Shares Outstanding
OperatingLeaseLiability
Operating Lease Liability Noncurrent
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Due Year Four
AccountsReceivable
Allowance For Doubtful Accounts Receivable Current

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:CommonStockValue ▁▃▃▃▃▃▃▃▃▃▃▃▃▃▃▄▄▄▄▄▄▄▄████████████████████0.81.01.01.01.01.01.01.01.01.01.01.01.01.01.01.21.21.21.21.21.21.21.21.61.61.61.61.61.61.61.61.61.61.61.61.61.61.61.61.61.61.61.6NANANA
us-gaap:CommonStockSharesOutstanding ▁▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▃▃▃▃▃▃▄▄▄▄▄▄▄▄▄▅▄▄▄▅▄▅▆▆▆▆▆▆▇█73.180.583.587.887.287.289.389.289.189.290.089.989.891.391.691.2100.4101.3100.7101.2102.2103.1110.8111.0113.4113.9113.3114.5118.5119.4120.9121.8121.3121.3120.9121.7120.6124.3135.8141.4145.7148.6148.4148.0149.3169.9
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding ▁█79.783.9NA88.988.190.0NA90.490.290.7NA90.891.292.7NA97.7101.5101.6NA102.6103.6107.4NA113.6115.1115.1NA118.5120.8121.3NA123.5123.3123.0NA123.4123.7132.3NA147.0150.0151.8NA149.6163.2171.7
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic ▁█78.983.1NA88.387.990.0NA89.989.990.5NA90.490.792.1NA97.3101.2101.1NA101.9102.9106.7NA112.4113.8113.6NA117.0119.1119.5NA121.5121.4121.0NA121.2121.7130.3NA144.4147.4149.1NA147.5161.9170.7
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount NANANA1.42.43.0NA2.22.62.8NA2.42.31.4NA3.23.73.1NA3.03.12.5NA0.90.50.5NA0.70.50.4NA0.60.80.6NA0.91.00.9NA0.40.40.3NA0.54.3NA
us-gaap:EarningsPerShareBasic █▆▅▅▆▁▅▄▄▄▄▅▄▄▅▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄4.882.881.73000000000000042.073.18-2.581.751.111.121.021.03000000000000021.241.081.021.60000000000000051.00.870.971.13999999999999971.051.090.90.88000000000000031.051.010.981.020.910.840.80.89999999999999990.760.740.690.690.670.650.560.50.490.490.470.439999999999999950.390.290.32
us-gaap:EarningsPerShareDiluted █▆▅▅▆▁▅▄▄▄▄▅▄▄▅▄▄▄▅▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄4.832.851.712.053.18-2.581.73999999999999981.11.121.011.02999999999999981.231.071.011.60999999999999991.00.860.971.13000000000000031.051.080.890.88000000000000031.041.00.971.01000000000000020.90.830.780.89000000000000010.750.730.670.67999999999999990.660.640.550.490.480.480.460.439999999999999950.380.290.32
us-gaap:IncomeLossFromContinuingOperationsPerBasicShare █▆▅▅▆▁▅▄▄▄▄▅▄▄▅▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄4.88e-062.88e-061.7300000000000004e-062.0699999999999997e-063.18e-06-2.58e-061.75e-061.1100000000000002e-061.12e-061.02e-061.0300000000000003e-061.24e-061.0700000000000001e-061.01e-061.6100000000000003e-061e-068.7e-079.7e-071.1400000000000005e-061.06e-061.0900000000000002e-069.000000000000001e-078.900000000000002e-071.06e-061.01e-069.8e-071.02e-069.100000000000001e-078.5e-078.000000000000001e-079.100000000000002e-077.6e-077.4e-076.9e-076.800000000000002e-076.800000000000001e-076.5e-075.6e-075e-074.9e-075e-074.6999999999999995e-074.5e-074.0000000000000003e-073.1e-073.4000000000000003e-07
us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare █▆▅▅▆▁▅▄▄▄▄▅▄▄▅▄▄▄▅▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄4.83e-062.8500000000000002e-061.71e-062.05e-063.18e-06-2.58e-061.7400000000000003e-061.1100000000000002e-061.12e-061.02e-061.0299999999999999e-061.24e-061.0700000000000001e-061.01e-061.5999999999999997e-061e-068.6e-079.7e-071.14e-061.0500000000000001e-061.08e-069.000000000000001e-078.799999999999999e-071.0500000000000001e-061e-069.7e-071.0099999999999999e-069.000000000000001e-078.3e-077.900000000000001e-078.899999999999996e-077.5e-077.3e-076.800000000000001e-076.699999999999999e-076.6e-076.4e-075.6e-075e-074.8e-074.9e-074.6000000000000004e-074.3999999999999997e-073.9e-073.1e-073.4000000000000003e-07
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 Cost Ratio us-gaap:ProductOrService an:NewVehicle█▆▇▅▃▃▆▆▅▄▇▆▆▆█▇▆▆▇▇▇▆▇▇▆▅▆▆▅▄▅▅▄▃▄▃▃▂▃▂▁▂▁▁▁3428.32982.33127.02748.42261.32281.93025.42874.82769.62496.73066.62933.12949.62802.33345.33108.42930.92796.23187.83195.93071.92800.23144.03113.62967.82769.62983.12823.62736.92428.62636.72561.62493.62257.72476.02240.52196.11994.32085.61881.61746.61785.11778.71773.31656.6NA
 Cost Ratio us-gaap:ProductOrService an:PartsAndService█▆▆▆▃▇▇▇▇▇▇▆▆▆▆▆▆▆▆▆▆▆▅▅▅▄▄▄▄▃▃▃▃▃▂▂▂▂▁▂▁▁▁▁▁950.8851.0838.4852.8689.9876.3891.3902.6901.5876.7868.0864.0857.1858.5854.1841.6857.5845.1822.5843.8834.7820.4778.3783.3777.8743.4729.3717.4704.8671.0651.1653.8655.9636.6600.0596.8602.5599.9573.1578.0572.0570.0560.2564.1547.3NA
 Cost Ratio us-gaap:ProductOrService an:UsedVehicle█▆▅▅▄▃▄▄▄▄▃▃▄▄▃▃▃▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▁▂▂▁▁▁▁2222.91749.11511.21516.91324.51248.71344.61402.91379.41339.61212.41281.71298.71330.51208.11228.31201.11240.91217.51276.81259.41241.61153.81205.41216.31193.21105.21148.51082.31049.71016.51044.71056.51009.7912.1936.4947.4918.8882.2911.9887.3831.4788.4812.4783.7NA
 Cost Ratio us-gaap:ProductOrService us-gaap:ProductAndServiceOther▁▂▂▁▂▅▅▃█▇▄▅█▆▆▂7.48.412.65.610.924.322.214.738.132.319.323.038.827.828.812.5NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Gross Margin us-gaap:ProductOrService an:NewVehicle█▆▇▅▃▃▆▆▅▄▇▆▆▆█▇▆▆▇▇▇▆▇▇▆▅▆▆▅▄▅▅▄▃▄▃▃▂▃▂▁▂▁▁▁3428.32982.33127.02748.42261.32281.93025.42874.82769.62496.73066.62933.12949.62802.33345.33108.42930.92796.23187.83195.93071.92800.23144.03113.62967.82769.62983.12823.62736.92428.62636.72561.62493.62257.72476.02240.52196.11994.32085.61881.61746.61785.11778.71773.31656.6NA
 Gross Margin us-gaap:ProductOrService an:PartsAndService█▆▆▆▃▇▇▇▇▇▇▆▆▆▆▆▆▆▆▆▆▆▅▅▅▄▄▄▄▃▃▃▃▃▂▂▂▂▁▂▁▁▁▁▁950.8851.0838.4852.8689.9876.3891.3902.6901.5876.7868.0864.0857.1858.5854.1841.6857.5845.1822.5843.8834.7820.4778.3783.3777.8743.4729.3717.4704.8671.0651.1653.8655.9636.6600.0596.8602.5599.9573.1578.0572.0570.0560.2564.1547.3NA
 Gross Margin us-gaap:ProductOrService an:UsedVehicle█▆▅▅▄▃▄▄▄▄▃▃▄▄▃▃▃▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▁▂▂▁▁▁▁2222.91749.11511.21516.91324.51248.71344.61402.91379.41339.61212.41281.71298.71330.51208.11228.31201.11240.91217.51276.81259.41241.61153.81205.41216.31193.21105.21148.51082.31049.71016.51044.71056.51009.7912.1936.4947.4918.8882.2911.9887.3831.4788.4812.4783.7NA
 Gross Margin us-gaap:ProductOrService us-gaap:ProductAndServiceOther▁▂▂▁▂▅▅▃█▇▄▅█▆▆▂7.48.412.65.610.924.322.214.738.132.319.323.038.827.828.812.5NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 TTM Greenblatt ROC _ _█▆▆▆▅▁▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▄▄▄▄▄▄530.2336.9309.4271.7201.4-219.3235.8193.5203.5190.8197.3203.6191.2185.8229.3211.2196.2206.7236.6219.0226.5207.4200.4235.7222.1214.9226.5207.4197.8189.1202.8187.2180.9169.4168.7163.7164.2148.7143.5144.1144.4140.0134.7NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:CostOfRevenue █▆▆▅▄▄▆▆▅▅▆▆▆▅▆▆▅▅▆▆▆▅▆▆▅▅▅▅▅▄▄▄▄▃▄▃▃▃▃▂▂▂▂▂▂▁5652.14871.04798.3999999999984433.43738.03853.84653.34573.84453.04132.64563.84493.94540.24417.64816.34586.54453.24319.64671.44731.14599.64293.74527.64523.44405.24144.34264.34156.14043.63656.13820.73774.23730.43432.43540.73311.23276.53054.03099.22931.32752.92744.92701.72728.52575.02328.2
us-gaap:GainLossOnInvestments ▁█3.47.5NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:GrossProfit █▅▅▅▃▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▁▁▁▁▁1326.31032.8986.7971.5795.0813.2895.6887.4890.8849.2847.9855.3851.8842.3867.2845.9826.1819.8809.1836.4841.8825.9812.2830.3819.1799.9783.5752.9744.9707.4703.2696.6696.1664.0632.8622.6628.0603.0579.2575.2583.4566.2544.5545.4529.3508.4
us-gaap:IncomeLossFromContinuingOperations █▆▅▆▇▁▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▄▄▄▄▄▄▄▄▄384.9239.5151.5182.6279.9-232.2157.7100.0101.092.192.9112.397.493.3151.597.687.798.2115.6107.8112.196.297.8119.0115.2111.7116.9106.7100.795.5109.792.890.183.282.981.979.073.569.970.773.370.368.158.550.058.8
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest █▆▅▆▇▁▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▄▄▄▄▄▄▄▄511.6317.3201.3243.5376.5-271.2211.2137.1138.2126.1128.5145.1129.6126.2173.9157.9144.9159.8187.5174.8183.1156.9159.1195.3186.8181.5188.5173.8164.2155.8170.3151.6146.6135.9135.0132.6129.6119.6112.8115.6118.4114.5109.393.682.0NA
us-gaap:IncomeTaxExpenseBenefit █▆▅▅▇▁▅▄▄▄▄▄▄▄▄▅▅▅▆▅▆▅▅▆▆▆▆▅▅▅▅▅▅▅▅▅▅▅▄▅▅▅▄▄▄▄126.777.849.860.996.6-39.053.537.137.234.035.632.832.232.922.460.357.261.671.967.071.060.761.376.371.669.871.667.163.560.360.658.856.552.752.150.750.646.142.944.945.144.241.235.132.037.8
us-gaap:IncomeTaxesPaidNet █▁▄▅▁▁▁▂▄▁▂▁▄▄▁▁▆▁▄▃▆▁▃▃▆▂▃▂▆▁▃▃▅▁▂▂▄▁▂▁▄▁▁190.40.174.2112.82.70.54.327.274.81.227.911.386.284.60.72.2124.6-0.572.261.3131.10.960.757.1142.618.444.639.8131.78.945.042.4104.08.934.822.089.40.825.912.477.05.89.2NANANA
us-gaap:InterestExpenseDebt ▃▄▄▅▄▅▅▆▆▆▇▆▇██▇▇▇▇▇▇▆▆▄▄▄▄▄▄▄▄▄▄▄▄▄▄▃▂▂▁▂▂▂▁20.921.223.423.623.223.525.126.127.727.829.028.429.732.332.230.029.228.829.628.928.728.326.521.421.621.422.121.721.321.621.722.322.022.321.722.222.520.517.416.415.916.316.316.114.7NA
us-gaap:InterestPaidNet ▄▁▅▂▃▅▆▅▇▆▇▅█▄▆45.817.955.525.235.947.657.854.769.960.766.355.777.146.557.3NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss █▆▅▆▇▁▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▄▄▄▄▄▄▄▄▄384.8239.4151.5182.6279.8-232.3157.799.5100.892.092.7112.097.693.7151.397.587.798.1115.3107.3112.095.997.5118.5115.1111.5116.7106.5100.495.1109.492.689.983.083.281.678.673.069.470.771.969.467.356.947.255.2
us-gaap:OperatingIncomeLoss █▆▆▆▅▁▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▄▄▄▄▄▄▄▄▄530.2336.9309.4271.7201.4-219.3235.8193.5203.5190.8197.3203.6191.2185.8229.3211.2196.2206.7236.6219.0226.5207.4200.4235.7222.1214.9226.5207.4197.8189.1202.8187.2180.9169.4168.7163.7164.2148.7143.5144.1144.4140.0134.7120.9126.0115.1
us-gaap:OtherNonoperatingIncomeExpense ▃▃▁▃█▃▄▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃8.911.0-73.86.4214.5-3.029.42.6-0.31.9-3.12.30.20.82.91.61.83.00.32.64.2-3.41.4-4.30.51.1-0.61.10.91.53.4-0.71.31.60.52.5-1.42.0-0.3-2.40.51.72.6-0.7-0.3-0.1
us-gaap:RealizedInvestmentGainsLosses NA7.5NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:Revenues █▆▆▅▄▄▆▅▅▅▅▅▅▅▆▅▅▅▅▆▅▅▅▅▅▅▅▅▄▄▄▄▄▃▃▃▃▂▂▂▂▂▂▂▁▁6978.45903.85785.15404.94533.04667.05548.95461.25343.84981.85411.75349.25392.05259.95683.55432.45279.35139.45480.55567.55441.45119.65339.85353.75224.34944.25047.84909.04788.54363.54523.94470.84426.54096.44173.53933.83904.53657.03678.43506.53336.33311.13246.23273.93104.32836.6
us-gaap:SellingGeneralAndAdministrativeExpense █▆▆▆▄▅▆▆▆▆▆▆▆▆▆▅▅▅▅▅▅▅▅▅▅▄▄▄▄▃▃▃▃▃▂▂▂▂▂▂▂▂▁▂▁▁748.9647.9632.0641.4547.9600.7644.8653.8637.0623.0631.5626.2625.3626.8622.1607.5611.3595.3584.2591.3585.2588.7568.5568.7568.7557.6532.0522.3524.6500.7482.5485.1494.1473.3442.2435.8438.6432.9412.7411.4417.6407.7392.7402.9383.1373.4
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:Assets ▅▆▇▆▆█▇▇███▇▇▇▇▇▇▇▇▆▆▇▆▅▅▅▅▄▄▄▄▃▃▃▃▂▂▂▂▁▁▁▁8381.09267.59887.29569.39448.510552.410543.310451.810699.510914.310665.110119.810288.610220.310271.59954.810149.710092.710060.09687.09788.39997.69558.38851.48839.48438.58399.77793.77871.67744.07914.17374.87453.07194.27203.06563.06461.46332.46198.85766.85935.95889.45974.2NANANA
us-gaap:LiabilitiesAndStockholdersEquity ▅▆▇▆▆█▇▇███▇▇▇▇▇▇▇▇▆▆▇▆▅▅▅▅▄▄▄▄▃▃▃▃▂▂▂▂▁▁▁▁8381.09267.59887.29569.39448.510552.410543.310451.810699.510914.310665.110119.810288.610220.310271.59954.810149.710092.710060.09687.09788.39997.69558.38851.48839.48438.58399.77793.77871.67744.07914.17374.87453.07194.27203.06563.06461.46332.46198.85766.85935.95889.45974.2NANANA
us-gaap:StockholdersEquity ▆▇██▇▆▇▇▆▆▆▅▅▅▄▄▅▄▄▄▃▃▄▄▄▄▃▃▃▃▃▃▂▂▂▁▁▁▂▃▃▃▃2856.83193.93235.73357.93137.72846.93162.12996.72882.92785.82716.02618.02500.62471.92369.32200.52498.62434.22310.32220.82158.22090.62349.32264.92285.32205.62072.12012.02125.12068.92061.71993.41882.51786.61688.51638.51528.21568.11894.62024.92116.12138.62078.9NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AssetsCurrent ▂▅▆▅▄█▇▇▇██▇█▇█▇▇▇█▇▇██▆▆▆▆▅▅▅▅▄▄▄▄▃▃▂▂▁▂▁▂2801.93666.84152.73654.93520.24748.64411.14398.84663.64831.84884.04437.84703.94646.94797.54450.14646.24676.84714.84421.94663.94872.74711.44251.64273.63985.33999.23606.93728.03637.73830.03358.53506.53340.93361.12958.32883.92781.82676.22296.02489.12450.82629.1NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▁▅█▅▄▆▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▁▁▂▁▂▂▂▂▂▃59.5350.0569.6350.5257.3411.042.045.051.148.748.652.653.157.569.253.352.556.364.862.254.747.874.163.965.374.175.467.568.569.269.268.369.746.369.798.662.176.386.667.381.884.395.184.5101.6160.6
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents ▁▅█▅▄▆▁▁▁▁▁▁▁▁▁▁▁▁▁59.7350.1569.7350.6257.4411.142.545.551.949.649.453.353.858.971.156.655.657.665.4NANANA78.0NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AccountsReceivableNetCurrent ▆▇▆▄▄▁▇▆▅▅█▅▇▇572.1650.3595.0477.2493.4324.5662.0571.2553.0567.4706.7569.7625.4671.8NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ReceivablesNetCurrent ▅▆▅▄▄▂▆▅▅▅▇▅▅▆█▆▅▅▇▅▅▅▆▅▅▅▅▃▄▄▄▃▃▃▄▂▂▂▃▁▁▁▂773.5883.5845.2682.5673.3512.9916.7829.5780.8782.7976.2800.5854.5883.11111.0901.0795.1830.31032.9788.3817.2767.6908.2758.1770.6778.0817.8651.8691.3663.6740.9599.3621.4590.1698.4514.2538.9518.1587.4402.1404.6425.5462.0NANANA
us-gaap:InventoryNet ▁▃▄▄▃▇▆▆▇█▇▆▇▇▆▆▇▇▇▇▇█▇▆▆▅▅▄▅▄▅▄▄▄▃▃▂▂▂▁▂▁▂1756.22254.62598.52482.52432.33677.03305.83280.73517.93771.43650.53381.33587.03529.33365.63408.63713.23692.63520.13448.03661.43927.83612.03226.93230.72928.42899.02691.42776.62712.02827.22504.82625.22499.82396.92142.12077.71984.61809.21601.71780.01731.71867.0NANANA
us-gaap:OtherAssetsCurrent ▅▄▃▃▃▃▃▆█▅▅▅▅▄▆▁▁▁▁▂▂▂▂▅▅▅▅▄▄▄▄▄▄▅▄▅▅▅▄▅▅▅▅212.7178.7139.4139.4157.3147.7146.6243.6313.8229.0208.7203.4209.3177.0251.787.285.497.697.0123.4130.6129.5117.1202.7207.0204.8207.0196.2191.6192.9192.7186.1190.2204.7196.1203.4205.2202.8193.0224.9222.7209.3205.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:PropertyPlantAndEquipmentGross NANA4791.0NANANA4655.8NANANA4488.1NANANA4173.8NANANA3936.4NANANA3677.2NANANA3352.5NANANA3119.0NANANA2921.9NANANA2707.5NANANA2527.6NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType an:FurnitureFixturesAndEquipmentNANA1040.3NANANA973.0NANANA807.1NANANA720.2NANANA659.4NANANA642.2NANANA578.7NANANA569.3NANANA545.8NANANA518.6NANANA479.6NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:BuildingAndBuildingImprovementsNANA2333.3NANANA2306.0NANANA2320.2NANANA2121.1NANANA2009.6NANANA1856.6NANANA1683.4NANANA1552.6NANANA1451.5NANANA1321.8NANANA1210.3NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:LandNANA1417.4NANANA1376.8NANANA1360.8NANANA1332.5NANANA1267.4NANANA1178.4NANANA1090.4NANANA997.1NANANA924.6NANANA867.1NANANA837.7NANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment ███▇▇▇▆▆▆▆▅▅▅▅▅▅▅▄▄▄▄▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▁▁▁▁▁1700.01700.01652.91600.01600.01500.01481.21400.01400.01400.01332.81300.01300.01200.01211.11200.01200.01100.01093.21100.01055.91040.81009.8981.1985.1951.2930.5942.3925.8901.3883.7879.8870.0853.6826.8813.0792.7773.9756.8738.1723.5708.0689.6NANANA
us-gaap:PropertyPlantAndEquipmentNet ████████████▇▇▇▇▇▇▆▆▆▆▅▄▄▄▄▃▃▃▃▃▂▂▂▂▂▂▂▁▁▁▁3094.73107.13138.13125.13143.93164.93174.63130.83115.23129.63155.33085.53023.13000.32962.72949.22950.72897.02843.22807.62772.22768.12667.42494.42489.22433.32422.02293.42272.92244.22235.32186.82122.92102.42095.12007.71987.01960.91950.71919.21884.31880.41838.0NANANA
us-gaap:Goodwill ▂▂▂▂▂▂▇▇▇██████████▇▆▆▆▅▅▄▄▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▁1187.01184.81185.01186.51181.31183.61501.91498.61497.81509.81513.21516.11508.11513.61515.01529.81527.91515.61511.31492.41427.31437.41394.51346.01341.01321.71314.71265.31257.81257.81259.61254.91253.01233.01237.41172.21172.21172.21172.21172.21172.21171.61142.1NANANA
us-gaap:IntangibleAssetsNetExcludingGoodwill ▆▆▆▆▆▆▇▇▇███▇██████▇▇▇▅▄▄▄▄▃▃▃▃▃▃▂▃▁▁▁▁▁▁▁▁521.0521.2521.5521.8522.0522.3581.6582.0582.7596.7595.4595.7579.3587.3586.8616.3615.1600.6598.2581.0544.6554.7439.9406.9392.4369.2354.7339.1335.0334.9335.1326.8328.2289.7291.3213.7213.0217.5217.8218.0217.8216.5202.0NANANA
us-gaap:OperatingLeaseRightOfUseAsset ▇▇▇███████▁303.0302.5309.5329.0340.6333.5333.1328.8336.0343.40.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent ▅▅▆██▆▅▅▅▅▅▅▅▅▄▄▄▄▄▄▄▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁473.4485.1580.4752.0740.5599.5541.0512.8504.2503.0517.2484.7474.2472.2409.5409.4409.8402.7392.5384.1380.3364.7345.1352.5343.2329.0309.1289.0277.9269.4254.1247.8242.4228.2218.1211.1205.3200.0181.9161.4172.5170.1163.0NANANA
us-gaap:EquitySecuritiesFvNi NANA101.9288.5NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AccountsPayableCurrent ██▆▆▄▃▅▄▄▄▅▄▄▅▅▄▄▅▅▅▄▅▅▄▄▄▄▃▃▄▄▃▃▂▃▃▂▂▂▁▂▂▁396.1413.2335.2344.5261.3225.5290.3267.6264.8269.2306.2274.4275.1302.2309.8276.6287.5308.6303.7304.0288.4310.5299.9282.4264.4287.9264.7251.1249.4253.3263.0233.4225.7203.3235.8218.2201.6217.2202.4169.0197.7211.9164.0NANANA
us-gaap:ContractWithCustomerLiabilityCurrent █▇▇▆▇█▇▇▆▅▆▆▄▁33.132.632.532.132.332.832.632.331.831.331.631.930.328.5NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LiabilitiesCurrent ▃▄▅▄▄▆▆▆▇█▇▆▇▇▇██▇▇▇▇█▆▅▅▄▄▃▃▄▄▃▃▃▃▂▂▂▂▁▁▁▁3040.73609.24165.93710.63821.34995.85100.25195.05590.35898.55658.15171.15476.45433.65635.76128.16108.55722.55829.25397.95576.45860.55169.14473.54395.73855.63882.03542.53568.93583.53751.83280.43399.93207.73201.72833.82715.32661.82462.62159.82211.52250.12399.4NANANA
 us-gaap:OperatingLeaseLiabilityCurrent us-gaap:BalanceSheetLocation us-gaap:OtherCurrentLiabilitiesNANA38.4NANANA41.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesCurrent ▅▆▄▄▇▆▇█▇▇▇▇▆▇█▆▅▅▅▅▄▅▄▄▃▄▄▄▃▃▃▂▂▃▂▂▂▂▁▂▁▂▂597.1659.5535.8535.5729.8642.2708.5752.2730.4734.7679.9688.1659.4707.4774.5659.1574.6615.0566.8566.1515.1572.7529.2530.0486.8540.1495.1499.2432.9474.1429.7416.3396.5449.7395.9386.6363.5396.6348.8386.3328.9377.9360.9NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:LongTermDebtAndCapitalLeaseObligations ▆▆▆▅▅█▄▄▄▄▇▇▇▇▇▂▁▄▄▅▅▅▅▅▆▇█▇▆▆▆▆▆▇█▆▇▆▄▂▃1790.31791.31792.61782.01783.12076.41578.51575.81576.21575.91926.21962.11958.11958.71959.21295.71216.11615.81611.11769.51738.01742.61753.71747.81805.52030.52103.41915.51865.71792.01809.81826.51907.21943.62066.31864.12000.31887.21634.41394.21433.1NA1340.6NANANA
us-gaap:DeferredIncomeTaxLiabilitiesNet ▂▂▄▅▆▁█75.476.395.9110.1118.066.5135.1NANANA89.8NANANA71.9NANANA91.5NANANA78.6NANANA69.3NANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesNoncurrent █▇▇▇▆▅▅▅▅▅▆▆▆▆▅▄▄▄▄▄▄▄▄▄▄▄▄▃▃▃▃▂▂▂▂▂▂▂▂▁▁▁▁338.7317.7310.6304.0273.2260.1262.4255.2249.6248.5275.0281.1276.7280.0235.4231.3227.0224.6217.9209.5218.2212.4207.6204.2206.9206.2204.3194.3187.7180.5174.3169.7166.2162.6157.1148.8147.0149.8144.9144.3143.0141.5129.4NANANA
us-gaap:OperatingLeaseLiabilityNoncurrent ▇▇▇███████▁279.1279.1286.5304.7315.2306.7305.0302.5308.8315.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANA48.9NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANA41.7NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NANA35.7NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA33.7NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA235.6NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:StockholdersEquity ▆▇██▇▆▇▇▆▆▆▅▅▅▄▄▅▄▄▄▃▃▄▄▄▄▃▃▃▃▃▃▂▂▂▁▁▁▂▃▃▃▃2856.83193.93235.73357.93137.72846.93162.12996.72882.92785.82716.02618.02500.62471.92369.32200.52498.62434.22310.32220.82158.22090.62349.32264.92285.32205.62072.12012.02125.12068.92061.71993.41882.51786.61688.51638.51528.21568.11894.62024.92116.12138.62078.9NANANA
us-gaap:CommonStockValue ▁▃▃▃▃▃▃▃▃▃▃▃▃▃▃▄▄▄▄▄▄▄▄████████████████████0.81.01.01.01.01.01.01.01.01.01.01.01.01.01.01.21.21.21.21.21.21.21.21.61.61.61.61.61.61.61.61.61.61.61.61.61.61.61.61.61.61.61.6NANANA
us-gaap:AdditionalPaidInCapitalCommonStock ▁▅▆▅▄▃▄▄▃▃▃▃▃▂▁▄▃▂▂▂▂▂▁██▇▆▆▆▅▅▄▄▃▃▃▃▃▃▂▃▂▁5.741.053.141.329.518.735.934.125.624.720.819.718.916.14.030.227.817.018.218.017.615.25.278.773.966.961.855.653.843.442.838.834.928.026.624.627.020.719.618.018.711.02.0NANANA
us-gaap:RetainedEarningsAccumulatedDeficit ▇█▇▇▆▅▆▅▅▄▄▄▃▃▃▅▄▄▄▃▃▃▂▇▇▆▆▆▅▅▅▄▄▃▃▃▃▂▂▂▂▁▁3896.44308.84069.43917.93735.33455.53688.33530.63431.13330.33238.33145.63033.62936.02832.23416.53319.03231.33133.33018.02910.72798.72702.84101.73983.23868.13756.63639.93533.43433.03337.93228.53135.93046.02963.02879.82798.22719.62646.62577.22506.52434.62365.2NANANA
us-gaap:TreasuryStockValue ▄▅▄▂▂▂▂▂▂▂▂▂▂▂▂▅▃▃▃▃▃▃▁█▇▇▇▇▆▆▅▅▅▅▅▅▅▅▃▂▂▁▁1046.11156.9887.8602.3628.1628.3563.1569.0574.8570.2544.1548.3552.9481.2467.91247.4849.4815.3842.4816.4771.3724.5359.91917.11773.41731.01747.91685.11463.71409.11320.61275.51289.91289.01302.71267.51298.61173.8773.2571.9410.7308.6289.9NANANA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue ▁█6.520.8NA7.211.24.5NA9.54.913.73.53.64.114.32.52.610.94.62.63.14.115.32.83.86.311.14.84.210.07.34.04.56.16.73.44.05.45.82.74.25.65.9NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▅▆▂▄█▂▂▃▃▃▁▃▂▃▂▃▂▃▂▃▂▃▂▃▂▃▂▃▁▃▁▃▂▃▁▃▁▂▂▃▁▃▂▂▂▂404.00000000000006526.343.3270.0780.6113.7103.7240.0165.8259.7-24.1244.492.0198.783.1218.353.1185.637.2250.630.0198.231.9233.042.7199.632.2242.0-4.7215.615.8189.543.7235.14.9192.219.4100.165.3186.0-28.4153.554.165.063.369.4
us-gaap:NetCashProvidedByUsedInInvestingActivities ▅██▆▆▅▇▆▆▆▄▅▅▆▆▆▅▅▆▄▆▁▂▅▅▅▃▆▆▆▆▅▅▆▃▆▆▆▆▆▆▅▅▅▆▆-79.170.677.9-26.9-32.5-92.2-2.3-16.7-48.2-48.6-123.1-89.8-69.2-13.2-22.1-48.7-81.5-76.0-32.9-130.9-15.2-310.7-256.5-62.9-110.4-79.6-226.8-53.9-53.0-42.3-46.0-80.9-91.1-39.8-184.0-39.0-50.0-24.8-31.5-46.0-40.2-88.5-66.9-90.5-21.5-21.3
us-gaap:NetCashProvidedByUsedInFinancingActivities ▃▁▇▅▁█▅▅▅▅▇▅▆▅▆▅▆▅▆▅▆▇▇▅▆▅▇▅▆▅▆▅▆▅▇▅▆▆▆▅▆▆▆▆▅▆-615.3-816.597.9-149.9-901.8347.1-104.4-229.7-115.3-210.9143.3-155.1-27.9-197.7-45.1-168.824.6-118.1-1.7-112.2-7.986.2234.8-171.558.9-121.3202.5-189.157.0-173.331.1-110.070.8-218.7150.2-116.716.4-85.6-14.5-154.566.1-75.823.48.4-100.8-61.0
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▁▂▆▅▂█▄▄▄▄▄▄▄▄▄▄▄▄-290.4-219.6219.1000000000000593.2-153.7368.6-3.0-6.42.30.2-3.9-0.5-5.1-12.214.51.0-2.0-7.8NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:IncreaseDecreaseInAccountsPayable ▃█▄█▆▁▅▄▄▂▅▄▃▄▅▄▃▄▄▅▃▄▅▅▃▅▅▄▄▄▅▄▅▃▅▅▃▅▆▃▃▆▃▄▅▅-16.676.8-9.883.038.6-64.119.43.3-5.1-35.229.8-0.8-26.8-0.526.1-11.2-21.16.7-1.915.8-22.22.520.916.6-26.426.610.51.6-4.0-0.620.57.722.4-13.918.016.2-15.916.833.4-28.4-14.247.6-20.36.210.415.5
us-gaap:IncreaseDecreaseInInventories ▄▅▇▇▁█▆▅▅▇█▆▇▇▇▅▆▇▇▅▅▇█▆█▆▇▆▇▆█▆▇▇▇▇▇▇▇▆▇▆▇▇▇▇-506.0-343.9123.845.9-1244.6371.323.1-237.8-222.7141.4274.6-203.871.0177.754.8-292.712.8185.861.3-258.1-208.8146.5278.3-26.2273.723.0174.0-95.864.6-115.5311.4-118.295.1111.8141.864.493.1175.4207.5-178.348.3-147.6127.1148.565.4107.6
us-gaap:NetCashProvidedByUsedInOperatingActivities ▅▆▂▄█▂▂▃▃▃▁▃▂▃▂▃▂▃▂▃▂▃▂▃▂▃▂▃▁▃▁▃▂▃▁▃▁▂▂▃▁▃▂▂▂▂404.00000000000006526.343.3270.0780.6113.7103.7240.0165.8259.7-24.1244.492.0198.783.1218.353.1185.637.2250.630.0198.231.9233.042.7199.632.2242.0-4.7215.615.8189.543.7235.14.9192.219.4100.165.3186.0-28.4153.554.165.063.369.4
us-gaap:NetIncomeLoss █▆▅▆▇▁▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▄▄▄▄▄▄▄▄▄384.8239.4151.5182.6279.8-232.3157.799.5100.892.092.7112.097.693.7151.397.587.798.1115.3107.3112.095.997.5118.5115.1111.5116.7106.5100.495.1109.492.689.983.083.281.678.673.069.470.771.969.467.356.947.255.2
us-gaap:ShareBasedCompensation ▃█▃▃▄▂▁▄▂▅▁▁▂▆▁▁▄▂▁▁▂▆▁▂▃▄▂▂▄▃▂▂▂▃▁▂▂▂▁▂▂▂▁▁▂▂6.520.87.37.211.24.53.09.54.913.73.53.64.114.32.52.610.94.62.63.14.115.32.83.86.311.14.84.210.07.34.04.56.16.73.44.05.45.82.74.25.65.92.33.04.66.0
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▅██▆▆▅▇▆▆▆▄▅▅▆▆▆▅▅▆▄▆▁▂▅▅▅▃▆▆▆▆▅▅▆▃▆▆▆▆▆▆▅▅▅▆▆-79.170.677.9-26.9-32.5-92.2-2.3-16.7-48.2-48.6-123.1-89.8-69.2-13.2-22.1-48.7-81.5-76.0-32.9-130.9-15.2-310.7-256.5-62.9-110.4-79.6-226.8-53.9-53.0-42.3-46.0-80.9-91.1-39.8-184.0-39.0-50.0-24.8-31.5-46.0-40.2-88.5-66.9-90.5-21.5-21.3
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▅▂▂▁▁▂▆▄▄▄█▆██▆▄▅▇▃▅▄▃▄▂▅▄▃▃▃▃▃▂▁▁74.941.342.937.833.142.283.063.662.760.0103.880.3101.4101.582.559.178.490.156.969.563.454.768.144.368.866.457.350.252.449.350.240.233.237.2NANA33.036.335.350.238.924.772.737.426.314.0
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▃▁▇▅▁█▅▅▅▅▇▅▆▅▆▅▆▅▆▅▆▇▇▅▆▅▇▅▆▅▆▅▆▅▇▅▆▆▆▅▆▆▆▆▅▆-615.3-816.597.9-149.9-901.8347.1-104.4-229.7-115.3-210.9143.3-155.1-27.9-197.7-45.1-168.824.6-118.1-1.7-112.2-7.986.2234.8-171.558.9-121.3202.5-189.157.0-173.331.1-110.070.8-218.7150.2-116.716.4-85.6-14.5-154.566.1-75.823.48.4-100.8-61.0
us-gaap:PaymentsForRepurchaseOfCommonStock █▄▄▁▁▂▁▁▁▁▁▁▂▁▁▅▁▁▁▁▂▅▁▂▂▁▂▃▂▂▁▁▁▁▁▁▂▅▃▃▂▂▁▂▅▁710.4310.7287.20.01.178.90.00.011.333.40.00.076.723.39.7390.435.50.428.448.351.2371.126.0150.051.79.6109.4196.166.0116.248.70.14.314.237.36.4131.4400.5244.8164.4111.758.917.188.0382.037.3
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument,us-gaap:LongtermDebtType an:SeniorNotesatFourPointFivePercentDue2025,us-gaap:SeniorNotesNANANA4.5e-064.5e-084.5e-084.5e-084.5e-084.5e-084.5e-084.5e-084.5e-084.5e-084.5e-084.5e-084.5e-084.5e-084.5e-084.5e-084.5e-084.5e-084.5e-084.5e-084.5e-08NANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument,us-gaap:LongtermDebtType an:SeniorNotesatThreePointEightPercentDue2027,us-gaap:SeniorNotesNANANA3.7999999999999996e-064e-083.7999999999999996e-083.7999999999999996e-083.7999999999999996e-083.7999999999999996e-083.7999999999999996e-083.7999999999999996e-083.7999999999999996e-083.7999999999999996e-083.7999999999999996e-083.7999999999999996e-08NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument,us-gaap:LongtermDebtType an:SeniorNotesatThreePointFivePercentDue2024,us-gaap:SeniorNotesNANANA3.5e-063.5e-083.5e-083.5e-083.5e-083.5e-083.5e-083.5e-083.5e-083.5e-083.5e-083.5e-08NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value800000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01200000.01200000.01200000.01200000.01200000.01200000.01200000.01200000.01600000.01600000.01600000.01600000.01600000.01600000.01600000.01600000.01600000.01600000.01600000.01600000.01600000.01600000.01600000.01600000.01600000.01600000.01600000.01600000.01900000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStockSharesOutstanding


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value73808387878789898989908989919191100101100101102103110111113113113114118119120121121121120121120124135141145148148148149169171176
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value798388889090909090919297101101102103107113115115118120121123123123123123132147150151149163171
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 End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value788388879089899090909297101101101102106112113113117119119121121121121121130144147149147161170
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 End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value1400000.02400000.03000000.02200000.02600000.02800000.02400000.02300000.01400000.03200000.03700000.03100000.03000000.03100000.02500000.0900000.0500000.0500000.0700000.0500000.0400000.0600000.0800000.0600000.0900000.01000000.0900000.0400000.0400000.0300000.0500000.04300000.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value4.882.881.732.073.18-2.581.751.111.121.021.031.241.081.021.61.00.870.971.141.051.090.90.881.051.010.981.020.910.840.80.90.760.740.690.690.670.650.560.50.490.490.470.440.390.290.32
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value4.832.851.712.053.18-2.581.741.11.121.011.031.231.071.011.611.00.860.971.131.051.080.890.881.041.00.971.010.90.830.780.890.750.730.670.680.660.640.550.490.480.480.460.440.380.290.32
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Income Loss From Continuing Operations Per Basic Share

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value4.882.881.732.073.18-2.581.751.111.121.021.031.241.071.011.611.00.870.971.141.061.090.90.891.061.010.981.020.910.850.80.910.760.740.690.680.680.650.560.50.490.50.470.450.40.310.34
Percentage of IncomeLossFromContinuingOperationsPerBasicShare100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Income Loss From Continuing Operations Per Diluted Share

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value4.832.851.712.053.18-2.581.741.111.121.021.031.241.071.011.61.00.860.971.141.051.080.90.881.051.00.971.010.90.830.790.890.750.730.680.670.660.640.560.50.480.490.460.440.390.310.34
Percentage of IncomeLossFromContinuingOperationsPerDilutedShare100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Cost Of Revenue

us-gaap:CostOfRevenue

us-gaap:CostOfRevenue


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value5652487147984433373838534653457344534132456344934540441748164586445343194671473145994293452745234405414442644156404336563820377437303432354033113276305430992931275227442701272825752328
Percentage of CostOfRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues81.082.582.982.082.582.683.983.883.383.084.384.084.284.084.784.484.484.085.285.084.583.984.884.584.383.884.584.784.483.884.584.484.383.884.884.283.983.584.383.682.582.983.283.382.982.1

us-gaap:CostOfRevenue us-gaap:ProductOrService

an:NewVehicle


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value310727922926258121412185288727552644237429302807282426723184296327922651302230372909265129692942280126082797266625752282246624062344211623202095205018601938174316091659165116611547
Percentage of CostOfRevenue55.057.361.058.257.356.762.160.359.457.564.262.562.260.566.164.662.761.464.764.263.261.765.665.163.662.965.664.263.762.464.663.862.861.665.563.362.660.962.559.558.560.561.160.960.1
Percentage of Revenues44.547.350.647.847.246.852.050.549.547.754.152.552.450.856.054.652.951.655.154.653.551.855.655.053.652.855.454.353.852.354.553.853.051.755.653.352.550.952.749.748.350.150.950.749.9
Percentage of Revenues an:NewVehicle90.793.60.093.994.795.80.095.995.595.10.095.795.895.40.095.395.394.80.095.094.794.70.094.594.494.20.094.494.194.00.093.994.093.70.093.593.493.30.092.792.293.00.093.793.4

an:PartsAndService


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value518462453477378487488493489477476473469473479474479474467480473465439441440423423413404384374376375364347345349349334336326325318318308
Percentage of CostOfRevenue9.29.59.410.810.112.610.510.811.011.610.410.510.310.710.010.310.811.010.010.110.310.89.79.810.010.29.910.010.010.59.810.010.110.69.810.410.711.510.811.511.911.911.811.712.0
Percentage of Revenues7.47.87.88.88.310.48.89.09.29.68.88.88.79.08.48.79.19.28.58.68.79.18.28.28.48.68.48.48.48.88.38.48.58.98.38.88.99.69.19.69.89.89.89.79.9
Percentage of Revenues an:PartsAndService54.554.30.056.054.955.60.054.754.354.50.054.854.855.10.056.356.056.10.056.956.756.80.056.356.657.00.057.757.357.30.057.657.357.20.057.857.958.30.058.157.157.10.056.556.3

an:UsedVehicle


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value2020160814071370120711571256131012821249113811901207124411301142112611631152119911751150107811221125108910161060993955937964972923843863870837820845808753726743714
Percentage of CostOfRevenue35.733.029.330.932.330.027.028.728.830.225.026.526.628.223.524.925.326.924.725.425.626.823.824.825.526.323.825.524.626.124.525.526.126.923.826.126.627.426.528.829.427.426.927.227.7
Percentage of Revenues28.927.324.325.326.624.822.624.024.025.121.022.322.423.719.921.021.322.621.021.521.622.520.221.021.522.020.121.620.721.920.721.622.022.520.222.022.322.922.324.124.222.822.422.723.0
Percentage of Revenues an:UsedVehicle90.992.00.090.391.292.70.093.493.093.20.092.993.093.60.093.093.893.80.094.093.392.70.093.192.591.30.092.391.791.00.092.392.091.50.092.291.991.20.092.791.190.60.091.591.1

us-gaap:ProductAndServiceOther


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value5.87.8124.610232013363018223827226.1
Percentage of CostOfRevenue0.10.20.30.10.30.60.40.30.80.70.40.50.80.60.50.1
Percentage of Revenues0.10.10.20.10.20.50.40.30.70.60.30.40.70.50.40.1
Percentage of Revenues us-gaap:ProductAndServiceOther78.492.90.082.194.595.10.093.296.395.70.096.198.298.20.048.8

Gain Loss On Investments

us-gaap:GainLossOnInvestments

us-gaap:GainLossOnInvestments


Gain
Period End2021-06-302021-03-31
Value3.47.5
Percentage of GainLossOnInvestments100.0100.0
Percentage of Revenues0.00.1

Gross Profit

us-gaap:GrossProfit

us-gaap:GrossProfit


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value13261032986971795813895887890849847855851842867845826819809836841825812830819799783752744707703696696664632622628603579575583566544545529508
Percentage of GrossProfit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues19.017.517.118.017.517.416.116.216.717.015.716.015.816.015.315.615.616.014.815.015.516.115.215.515.716.215.515.315.616.215.515.615.716.215.215.816.116.515.716.417.517.116.816.717.117.9

us-gaap:GrossProfit us-gaap:ProductOrService

an:FinanceAndInsuranceNet


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value369313295281246235265266255236245247247240247241228221216229225223216227217207196196185172169174173155148147145130124121117110107111104
Percentage of GrossProfit27.830.330.028.931.029.029.630.028.627.828.928.929.128.628.528.627.727.026.827.526.827.026.627.426.626.025.126.124.924.424.125.125.023.423.523.623.121.621.621.220.119.619.720.519.8
Percentage of Revenues5.35.35.15.25.45.14.84.94.84.74.54.64.64.64.34.44.34.34.04.14.14.44.14.24.24.23.94.03.94.03.73.93.93.83.63.73.73.63.43.53.53.33.33.43.4
Percentage of Revenues an:FinanceAndInsuranceNet100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0

an:NewVehicle


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value32019020016711996137118125121136125124129161144138144165158162149174170166161185157161145170155149141155144145134147138136125127111108
Percentage of GrossProfit24.218.420.417.215.011.915.413.414.114.416.114.714.715.418.617.116.717.620.518.919.318.121.520.620.320.223.720.921.720.624.222.321.421.324.523.223.222.225.524.023.422.123.420.520.6
Percentage of Revenues4.63.23.53.12.62.12.52.22.32.42.52.32.32.52.82.72.62.83.02.83.02.93.33.23.23.33.73.23.43.33.83.53.43.53.73.73.73.74.03.94.13.83.93.43.5
Percentage of Revenues an:NewVehicle9.36.40.06.15.34.20.04.14.54.90.04.34.24.60.04.74.75.20.05.05.35.30.05.55.65.80.05.65.96.00.06.16.06.30.06.56.66.70.07.37.87.00.06.36.6

an:PartsAndService


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value432389385375311388402409411398391390387385374367377371354363361354338342337320305303300286276277280272252251253250238241245244241245239
Percentage of GrossProfit32.637.739.138.639.247.845.046.146.247.046.245.745.545.843.243.445.745.343.843.543.042.941.741.241.240.039.040.340.440.539.339.840.341.039.940.440.441.541.242.142.043.244.445.045.2
Percentage of Revenues6.26.66.76.96.98.37.37.57.78.07.27.37.27.36.66.87.27.26.56.56.66.96.36.46.56.56.16.26.36.66.16.26.36.66.16.46.56.86.56.97.37.47.47.57.7
Percentage of Revenues an:PartsAndService45.545.70.044.045.144.40.045.345.745.50.045.245.244.90.043.744.043.90.043.143.343.20.043.743.443.00.042.342.742.70.042.442.742.80.042.242.141.70.041.942.942.90.043.543.7

an:UsedVehicle


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value202140104146117918892969073919185788574776577849175839110388888994798084866872778161667878616969
Percentage of GrossProfit15.313.610.615.114.711.29.910.410.910.78.710.610.710.29.010.19.09.48.19.210.011.09.310.011.113.011.311.712.013.311.211.612.113.010.811.712.313.410.611.613.513.811.312.713.1
Percentage of Revenues2.92.41.82.72.61.91.61.71.81.81.41.71.71.61.41.61.41.51.21.41.51.81.41.61.72.11.81.81.92.21.71.81.92.11.61.82.02.21.71.92.42.41.92.12.2
Percentage of Revenues an:UsedVehicle9.18.00.09.78.87.30.06.67.06.80.07.17.06.40.07.06.26.20.06.06.77.30.06.97.58.70.07.78.39.00.07.78.08.50.07.88.18.80.07.38.99.40.08.58.9

us-gaap:ProductAndServiceOther


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1.60.60.41.00.61.21.41.01.41.40.70.90.70.56.26.4
Percentage of GrossProfit0.10.10.00.10.10.10.20.10.20.20.10.10.10.10.70.8
Percentage of Revenues0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.1
Percentage of Revenues us-gaap:ProductAndServiceOther21.67.10.017.95.54.90.06.83.74.30.03.91.81.80.051.2

Income Loss From Continuing Operations

us-gaap:IncomeLossFromContinuingOperations

us-gaap:IncomeLossFromContinuingOperations


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value384239151182279-232.215710010192921129793151978798115107112969711911511111610610095109929083828179736970737068585058
Percentage of IncomeLossFromContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues5.54.12.63.46.2-5.02.81.81.91.81.72.11.81.82.71.81.71.92.11.92.11.91.82.22.22.32.32.22.12.22.42.12.02.02.02.12.02.01.92.02.22.12.11.81.62.1

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value511317201243376-271.22111371381261281451291261731571441591871741831561591951861811881731641551701511461351351321291191121151181141099382
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues7.35.43.54.58.3-5.83.82.52.62.52.42.72.42.43.12.92.73.13.43.13.43.13.03.63.63.73.73.53.43.63.83.43.33.33.23.43.33.33.13.33.53.53.42.92.6

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value12677496096-39.053373734353232322260576171677160617671697167636060585652525050464244454441353237
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues1.81.30.91.12.1-0.81.00.70.70.70.70.60.60.60.41.11.11.21.31.21.31.21.11.41.41.41.41.41.31.41.31.31.31.31.21.31.31.31.21.31.41.31.31.11.01.3

Income Taxes Paid Net

us-gaap:IncomeTaxesPaidNet

us-gaap:IncomeTaxesPaidNet


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value1900.1741122.70.54.327741.2271186840.72.2124-0.572611310.960571421844391318.945421048.93422890.82512775.89.2
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues2.70.01.32.10.10.00.10.51.40.00.50.21.61.60.00.02.4-0.01.31.12.40.01.11.12.70.40.90.82.80.21.00.92.30.20.80.62.30.00.70.42.30.20.3

Interest Expense Debt

us-gaap:InterestExpenseDebt

us-gaap:InterestExpenseDebt


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value202123232323252627272928293232302928292828282621212122212121212222222122222017161516161614
Percentage of InterestExpenseDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.30.40.40.40.50.50.50.50.50.60.50.50.60.60.60.60.60.60.50.50.50.60.50.40.40.40.40.40.40.50.50.50.50.50.50.60.60.60.50.50.50.50.50.50.5

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value451755253547575469606655774657
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.70.31.00.50.81.01.01.01.31.21.21.01.40.91.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value384239151182279-232.31579910092921129793151978798115107112959711811511111610610095109928983838178736970716967564755
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues5.54.12.63.46.2-5.02.81.81.91.81.72.11.81.82.71.81.71.92.11.92.11.91.82.22.22.32.32.22.12.22.42.12.02.02.02.12.02.01.92.02.22.12.11.71.51.9

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value384239182279-232.399100929211297931519787981151071129597118115111116106100951099289838381787369707169
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues5.54.13.46.2-5.01.81.91.81.72.11.81.82.71.81.71.92.11.92.11.91.82.22.22.32.32.22.12.22.42.12.02.02.02.12.02.01.92.02.22.1
Percentage of Revenues us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value530336309271201-219.3235193203190197203191185229211196206236219226207200235222214226207197189202187180169168163164148143144144140134120126115
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues7.65.75.35.04.4-4.74.23.53.83.83.63.83.53.54.03.93.74.04.33.94.24.13.84.44.34.34.54.24.14.34.54.24.14.14.04.24.24.13.94.14.34.24.13.74.14.1

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value8.911-73.86.4214-3.0292.6-0.31.9-3.12.30.20.82.91.61.83.00.32.64.2-3.41.4-4.30.51.1-0.61.10.91.53.4-0.71.31.60.52.5-1.42.0-0.3-2.40.51.72.6-0.7-0.3-0.1
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.10.2-1.30.14.7-0.10.50.0-0.00.0-0.10.00.00.00.10.00.00.10.00.00.1-0.10.0-0.10.00.0-0.00.00.00.00.1-0.00.00.00.00.1-0.00.1-0.0-0.10.00.10.1-0.0-0.0-0.0

Realized Investment Gains Losses

us-gaap:RealizedInvestmentGainsLosses

us-gaap:RealizedInvestmentGainsLosses


Realized
Period End2021-03-31
Value7.5
Percentage of RealizedInvestmentGainsLosses100.0
Percentage of Revenues0.1

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value6978590357855404453346675548546153434981541153495392525956835432527951395480556754415119533953535224494450474909478843634523447044264096417339333904365736783506333633113246327331042836
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:ProductOrService

an:FinanceAndInsuranceNet


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value369313295281246235265266255236245247247240247241228221216229225223216227217207196196185172169174173155148147145130124121117110107111104
Percentage of Revenues5.35.35.15.25.45.14.84.94.84.74.54.64.64.64.34.44.34.34.04.14.14.44.14.24.24.23.94.03.94.03.73.93.93.83.63.73.73.63.43.53.53.33.33.43.4
Percentage of Revenues5.35.35.15.25.45.14.84.94.84.74.54.64.64.64.34.44.34.34.04.14.14.44.14.24.24.23.94.03.94.03.73.93.93.83.63.73.73.63.43.53.53.33.33.43.4
Percentage of Revenues an:FinanceAndInsuranceNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:NewVehicle


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value342829823127274822612281302528742769249630662933294928023345310829302796318731953071280031443113296727692983282327362428263625612493225724762240219619942085188117461785177817731656
Percentage of Revenues49.150.554.150.949.948.954.552.651.850.156.754.854.753.358.957.255.554.458.257.456.554.758.958.256.856.059.157.557.255.758.357.356.355.159.357.056.254.556.753.752.453.954.854.253.4
Percentage of Revenues49.150.554.150.949.948.954.552.651.850.156.754.854.753.358.957.255.554.458.257.456.554.758.958.256.856.059.157.557.255.758.357.356.355.159.357.056.254.556.753.752.453.954.854.253.4
Percentage of Revenues an:NewVehicle100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:PartsAndService


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value950851838852689876891902901876868864857858854841857845822843834820778783777743729717704671651653655636600596602599573578572570560564547
Percentage of Revenues13.614.414.515.815.218.816.116.516.917.616.016.215.916.315.015.516.216.415.015.215.316.014.614.614.915.014.414.614.715.414.414.614.815.514.415.215.416.415.616.517.117.217.317.217.6
Percentage of Revenues13.614.414.515.815.218.816.116.516.917.616.016.215.916.315.015.516.216.415.015.215.316.014.614.614.915.014.414.614.715.414.414.614.815.514.415.215.416.415.616.517.117.217.317.217.6
Percentage of Revenues an:PartsAndService100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:UsedVehicle


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value2222174915111516132412481344140213791339121212811298133012081228120112401217127612591241115312051216119311051148108210491016104410561009912936947918882911887831788812783
Percentage of Revenues31.929.626.128.129.226.824.225.725.826.922.424.024.125.321.322.622.824.122.222.923.124.321.622.523.324.121.923.422.624.122.523.423.924.621.923.824.325.124.026.026.625.124.324.825.2
Percentage of Revenues31.929.626.128.129.226.824.225.725.826.922.424.024.125.321.322.622.824.122.222.923.124.321.622.523.324.121.923.422.624.122.523.423.924.621.923.824.325.124.026.026.625.124.324.825.2
Percentage of Revenues an:UsedVehicle100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductAndServiceOther


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value7.48.4125.6102422143832192338272812
Percentage of Revenues0.10.10.20.10.20.50.40.30.70.60.40.40.70.50.50.2
Percentage of Revenues0.10.10.20.10.20.50.40.30.70.60.40.40.70.50.50.2
Percentage of Revenues us-gaap:ProductAndServiceOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

an:FinanceAndInsuranceNet, an:ANReportableSegmentDomestic


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1251091019788838995898081888885
Percentage of Revenues1.81.91.81.81.91.81.61.71.71.61.51.71.61.6
Percentage of Revenues1.81.91.81.81.91.81.61.71.71.61.51.71.61.6
Percentage of Revenues an:FinanceAndInsuranceNet an:ANReportableSegmentDomestic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:FinanceAndInsuranceNet, an:ANReportableSegmentImport


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1331091009582849299918486949289
Percentage of Revenues1.91.81.71.81.81.81.71.81.71.71.61.81.71.7
Percentage of Revenues1.91.81.71.81.81.81.71.81.71.71.61.81.71.7
Percentage of Revenues an:FinanceAndInsuranceNet an:ANReportableSegmentImport100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:FinanceAndInsuranceNet, an:ANReportableSegmentPremiumLuxury


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value10886897764637970686167606058
Percentage of Revenues1.51.51.61.41.41.31.41.31.31.21.21.11.11.1
Percentage of Revenues1.51.51.61.41.41.31.41.31.31.21.21.11.11.1
Percentage of Revenues an:FinanceAndInsuranceNet an:ANReportableSegmentPremiumLuxury100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:FinanceAndInsuranceNet, us-gaap:CorporateAndOther


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2.07.84.310115.74.41.25.610.010.04.46.37.7
Percentage of Revenues0.00.10.10.20.30.10.10.00.10.20.20.10.10.1
Percentage of Revenues0.00.10.10.20.30.10.10.00.10.20.20.10.10.1
Percentage of Revenues an:FinanceAndInsuranceNet us-gaap:CorporateAndOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:NewVehicle, an:ANReportableSegmentDomestic


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value991935987923761738901925894781987988991933
Percentage of Revenues14.215.817.117.116.815.816.216.916.715.718.218.518.417.7
Percentage of Revenues14.215.817.117.116.815.816.216.916.715.718.218.518.417.7
Percentage of Revenues an:NewVehicle an:ANReportableSegmentDomestic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:NewVehicle, an:ANReportableSegmentImport


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value11849589498877127339551003916820100110701018955
Percentage of Revenues17.016.216.416.415.715.717.218.417.116.518.520.018.918.2
Percentage of Revenues17.016.216.416.415.715.717.218.417.116.518.520.018.918.2
Percentage of Revenues an:NewVehicle an:ANReportableSegmentImport100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:NewVehicle, an:ANReportableSegmentPremiumLuxury


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value12521088119093778780911689459598951078874939912
Percentage of Revenues18.018.420.617.317.417.321.117.317.918.019.916.317.417.4
Percentage of Revenues18.018.420.617.317.417.321.117.317.918.019.916.317.417.4
Percentage of Revenues an:NewVehicle an:ANReportableSegmentPremiumLuxury100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:PartsAndService, an:ANReportableSegmentDomestic


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value257234229233193235236244241236272271268270
Percentage of Revenues3.74.04.04.34.35.04.34.54.54.75.05.15.05.1
Percentage of Revenues3.74.04.04.34.35.04.34.54.54.75.05.15.05.1
Percentage of Revenues an:PartsAndService an:ANReportableSegmentDomestic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:PartsAndService, an:ANReportableSegmentImport


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value248214213220170207214226229220227235237234
Percentage of Revenues3.63.63.74.13.84.43.94.14.34.44.24.44.44.5
Percentage of Revenues3.63.63.74.13.84.43.94.14.34.44.24.44.44.5
Percentage of Revenues an:PartsAndService an:ANReportableSegmentImport100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:PartsAndService, an:ANReportableSegmentPremiumLuxury


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value317285279278223277288283285278278269266268
Percentage of Revenues4.64.84.85.24.95.95.25.25.35.65.15.04.95.1
Percentage of Revenues4.64.84.85.24.95.95.25.25.35.65.15.04.95.1
Percentage of Revenues an:PartsAndService an:ANReportableSegmentPremiumLuxury100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:PartsAndService, us-gaap:CorporateAndOther


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value12611711612010315515214814514290878585
Percentage of Revenues1.82.02.02.22.33.32.72.72.72.91.71.61.61.6
Percentage of Revenues1.82.02.02.22.33.32.72.72.72.91.71.61.61.6
Percentage of Revenues an:PartsAndService us-gaap:CorporateAndOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:UsedVehicle, an:ANReportableSegmentDomestic


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value749563462478436404422456447443390424447462
Percentage of Revenues10.79.58.08.89.68.77.68.48.48.97.27.98.38.8
Percentage of Revenues10.79.58.08.89.68.77.68.48.48.97.27.98.38.8
Percentage of Revenues an:UsedVehicle an:ANReportableSegmentDomestic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:UsedVehicle, an:ANReportableSegmentImport


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value604484411415355334358386388369326365360366
Percentage of Revenues8.78.27.17.77.87.26.57.17.37.46.06.86.77.0
Percentage of Revenues8.78.27.17.77.87.26.57.17.37.46.06.86.77.0
Percentage of Revenues an:UsedVehicle an:ANReportableSegmentImport100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:UsedVehicle, an:ANReportableSegmentPremiumLuxury


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value788642591576490467521519507496469463464478
Percentage of Revenues11.310.910.210.710.810.09.49.59.510.08.78.78.69.1
Percentage of Revenues11.310.910.210.710.810.09.49.59.510.08.78.78.69.1
Percentage of Revenues an:UsedVehicle an:ANReportableSegmentPremiumLuxury100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:UsedVehicle, us-gaap:CorporateAndOther


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value8058464741424240363026282722
Percentage of Revenues1.21.00.80.90.90.90.80.70.70.60.50.50.50.4
Percentage of Revenues1.21.00.80.90.90.90.80.70.70.60.50.50.50.4
Percentage of Revenues an:UsedVehicle us-gaap:CorporateAndOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductAndServiceOther, an:ANReportableSegmentDomestic


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.74.26.52.16.221166.8342713162921
Percentage of Revenues0.00.10.10.00.10.50.30.10.70.60.30.30.60.4
Percentage of Revenues0.00.10.10.00.10.50.30.10.70.60.30.30.60.4
Percentage of Revenues us-gaap:ProductAndServiceOther an:ANReportableSegmentDomestic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductAndServiceOther, an:ANReportableSegmentImport


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value4.63.75.33.24.12.22.66.32.61.73.94.88.86.4
Percentage of Revenues0.10.10.10.10.10.00.00.10.00.00.10.10.20.1
Percentage of Revenues0.10.10.10.10.10.00.00.10.00.00.10.10.20.1
Percentage of Revenues us-gaap:ProductAndServiceOther an:ANReportableSegmentImport100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductAndServiceOther, an:ANReportableSegmentPremiumLuxury


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1.30.30.20.10.00.02.11.40.02.11.31.50.10.3
Percentage of Revenues0.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues0.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues us-gaap:ProductAndServiceOther an:ANReportableSegmentPremiumLuxury100.0100.0100.0100.00.00.0100.0100.00.0100.0100.0100.0100.0100.0

us-gaap:ProductAndServiceOther, us-gaap:CorporateAndOther


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.80.20.60.20.60.81.00.20.70.80.20.10.10.1
Percentage of Revenues0.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues0.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues us-gaap:ProductAndServiceOther us-gaap:CorporateAndOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:StatementBusinessSegments

an:ANReportableSegmentDomestic


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value212418461786173414861483166617281707156817451789182617731895191218441800192120441995184817701869176416651620166016041473145014911515
Percentage of Revenues30.431.330.932.132.831.830.031.731.931.532.233.533.933.733.335.234.935.035.136.736.736.133.234.933.833.732.133.833.533.832.133.434.2
Percentage of Revenues30.431.330.932.132.831.830.031.731.931.532.233.533.933.733.335.234.935.035.136.736.736.133.234.933.833.732.133.833.533.832.133.434.2
Percentage of Revenues an:ANReportableSegmentDomestic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:ANReportableSegmentImport


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value217517691679162113251362162217221627149616461770171716521749178917021631168417791748167517261837179516781662178717171549154616951629
Percentage of Revenues31.230.029.030.029.229.229.231.530.530.030.433.131.831.430.832.932.231.730.732.032.132.732.334.334.434.032.936.435.935.534.237.936.8
Percentage of Revenues31.230.029.030.029.229.229.231.530.530.030.433.131.831.430.832.932.231.730.732.032.132.732.334.334.434.032.936.435.935.534.237.936.8
Percentage of Revenues an:ANReportableSegmentImport100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:ANReportableSegmentPremiumLuxury


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value246821032151187015641616205918201820173418941668173017171937163416441616179916801644154018041607163315631728142214311306148912471242
Percentage of Revenues35.435.637.234.634.534.637.133.334.134.835.031.232.132.734.130.131.131.532.830.230.230.133.830.031.331.634.229.029.929.932.927.928.1
Percentage of Revenues35.435.637.234.634.534.637.133.334.134.835.031.232.132.734.130.131.131.532.830.230.230.133.830.031.331.634.229.029.929.932.927.928.1
Percentage of Revenues an:ANReportableSegmentPremiumLuxury100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CorporateAndOther


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value21018416817815620420018918818212612011811510096889075635356384032363637333437363941363940393635
Percentage of Revenues3.03.12.93.33.54.43.63.53.53.72.32.22.22.21.81.81.71.81.41.11.01.10.70.80.60.70.70.80.70.80.80.80.91.00.91.01.01.11.01.0
Percentage of Revenues3.03.12.93.33.54.43.63.53.53.72.32.22.22.21.81.81.71.81.41.11.01.10.70.80.60.70.70.80.70.80.80.80.91.00.91.01.01.11.01.0
Percentage of Revenues us-gaap:CorporateAndOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:StatementBusinessSegments, us-gaap:TimingOfTransferOfGoodOrService

an:ANReportableSegmentDomestic, us-gaap:TransferredAtPointInTime


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value19441681162315631343131114961547152813981571161316531602
Percentage of Revenues27.928.528.128.929.628.127.028.328.628.129.030.230.730.5
Percentage of Revenues27.928.528.128.929.628.127.028.328.628.129.030.230.730.5
Percentage of Revenues an:ANReportableSegmentDomestic us-gaap:TransferredAtPointInTime100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:ANReportableSegmentDomestic, us-gaap:TransferredOverTime


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value180165163171142172170181178170173176172170
Percentage of Revenues2.62.82.83.23.23.73.13.33.33.43.23.33.23.2
Percentage of Revenues2.62.82.83.23.23.73.13.33.33.43.23.33.23.2
Percentage of Revenues an:ANReportableSegmentDomestic us-gaap:TransferredOverTime100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:ANReportableSegmentImport, us-gaap:TransferredAtPointInTime


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value19841604151314431187120014551543144513241475159115361475
Percentage of Revenues28.427.226.226.726.225.726.228.327.026.627.329.828.528.0
Percentage of Revenues28.427.226.226.726.225.726.228.327.026.627.329.828.528.0
Percentage of Revenues an:ANReportableSegmentImport us-gaap:TransferredAtPointInTime100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:ANReportableSegmentImport, us-gaap:TransferredOverTime


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value190165166178138161167179182171170179180177
Percentage of Revenues2.72.82.93.33.13.53.03.33.43.43.13.33.33.4
Percentage of Revenues2.72.82.93.33.13.53.03.33.43.43.13.33.33.4
Percentage of Revenues an:ANReportableSegmentImport us-gaap:TransferredOverTime100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:ANReportableSegmentPremiumLuxury, us-gaap:TransferredAtPointInTime


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value22041863191316331373138018131579157714971657144115061492
Percentage of Revenues31.631.633.130.230.329.632.728.929.530.130.626.927.928.4
Percentage of Revenues31.631.633.130.230.329.632.728.929.530.130.626.927.928.4
Percentage of Revenues an:ANReportableSegmentPremiumLuxury us-gaap:TransferredAtPointInTime100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:ANReportableSegmentPremiumLuxury, us-gaap:TransferredOverTime


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value264239237236191236245241243236236227223225
Percentage of Revenues3.84.14.14.44.25.14.44.44.64.84.44.24.14.3
Percentage of Revenues3.84.14.14.44.25.14.44.44.64.84.44.24.14.3
Percentage of Revenues an:ANReportableSegmentPremiumLuxury us-gaap:TransferredOverTime100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CorporateAndOther, us-gaap:TransferredAtPointInTime


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value129107951119710910899989240353430
Percentage of Revenues1.81.81.72.12.12.32.01.81.81.90.80.70.60.6
Percentage of Revenues1.81.81.72.12.12.32.01.81.81.90.80.70.60.6
Percentage of Revenues us-gaap:CorporateAndOther us-gaap:TransferredAtPointInTime100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CorporateAndOther, us-gaap:TransferredOverTime


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value8176726759959190899085858484
Percentage of Revenues1.21.31.31.31.32.01.71.71.71.81.61.61.61.6
Percentage of Revenues1.21.31.31.31.32.01.71.71.71.81.61.61.61.6
Percentage of Revenues us-gaap:CorporateAndOther us-gaap:TransferredOverTime100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:TimingOfTransferOfGoodOrService

us-gaap:TransferredAtPointInTime


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value62625256514647514001400148734768465043124745468147314601
Percentage of Revenues89.789.089.087.988.385.787.887.387.086.687.787.587.787.5
Percentage of Revenues89.789.089.087.988.385.787.887.387.086.687.787.587.787.5
Percentage of Revenues us-gaap:TransferredAtPointInTime100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TransferredOverTime


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value716647638653531665675692693669666667660658
Percentage of Revenues10.311.011.012.111.714.312.212.713.013.412.312.512.312.5
Percentage of Revenues10.311.011.012.111.714.312.212.713.013.412.312.512.312.5
Percentage of Revenues us-gaap:TransferredOverTime100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Selling General And Administrative Expense

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:SellingGeneralAndAdministrativeExpense


Selling
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value748647632641547600644653637623631626625626622607611595584591585588568568568557532522524500482485494473442435438432412411417407392402383373
Percentage of SellingGeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues10.711.010.911.912.112.911.612.011.912.511.711.711.611.910.911.211.611.610.710.610.811.510.610.610.911.310.510.611.011.510.710.911.211.610.611.111.211.811.211.712.512.312.112.312.313.2

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value838192679887956994481055210543104511069910914106651011910288102201027199541014910092100609687978899979558885188398438839977937871774479147374745371947203656364616332619857665935588959745407
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:StatementBusinessSegments

an:ANReportableSegmentDomestic


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value213024832684256327422573218721431895
Percentage of Assets21.523.625.225.027.326.926.027.126.3
Percentage of Assets21.523.625.225.027.326.926.027.126.3
Percentage of Assets an:ANReportableSegmentDomestic100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:ANReportableSegmentImport


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value176418421934199220652145199720301787
Percentage of Assets17.817.518.119.420.522.423.825.724.8
Percentage of Assets17.817.518.119.420.522.423.825.724.8
Percentage of Assets an:ANReportableSegmentImport100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:ANReportableSegmentPremiumLuxury


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value275231503046271626032554205116331541
Percentage of Assets27.829.928.626.425.926.724.420.621.4
Percentage of Assets27.829.928.626.425.926.724.420.621.4
Percentage of Assets an:ANReportableSegmentPremiumLuxury100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CorporateAndOther


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-31
Value3240306729992998
Percentage of Assets32.829.128.129.2
Percentage of Assets32.829.128.129.2
Percentage of Assets us-gaap:CorporateAndOther100.0100.0100.0100.0

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value838192679887956994481055210543104511069910914106651011910288102201027199541014910092100609687978899979558885188398438839977937871774479147374745371947203656364616332619857665935588959745407
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 End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value28563193323533573137284631622996288227852716261825002471236922002498243423102220215820902349226422852205207220122125206820611993188217861688163815281568189420242116213820782303
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets34.134.532.735.133.227.030.028.726.925.525.525.924.324.223.122.124.624.123.022.922.020.924.625.625.926.124.725.827.026.726.127.025.324.823.425.023.724.830.635.135.636.334.842.6

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value5.7415341291835342524201918164.0302717181817155.27873666155534342383428262427201918182.0480481
Percentage of StockholdersEquity0.21.31.61.20.90.71.11.10.90.90.80.80.80.70.21.41.10.70.80.80.80.70.23.53.23.03.02.82.52.12.11.91.91.61.61.51.81.31.00.90.90.120.80.0
Percentage of Assets0.10.40.50.40.30.20.30.30.20.20.20.20.20.20.00.30.30.20.20.20.20.20.10.90.80.80.70.70.70.60.50.50.50.40.40.40.40.30.30.30.30.08.90.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value0.81.01.01.01.01.01.01.01.01.01.01.01.01.01.01.21.21.21.21.21.21.21.21.61.61.61.61.61.61.61.61.61.61.61.61.61.61.61.61.61.61.61.91.9
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.00.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value38964308406939173735345536883530343133303238314530332936283234163319323131333018291027982702410139833868375636393533343333373228313530462963287927982719264625772506236522212023
Percentage of StockholdersEquity136.4134.9125.8116.7119.0121.4116.6117.8119.0119.5119.2120.2121.3118.8119.5155.3132.8132.7135.6135.9134.9133.9115.0181.1174.3175.4181.3180.9166.3165.9161.9162.0166.6170.5175.5175.8183.1173.4139.7127.3118.4113.896.40.0
Percentage of Assets46.546.541.240.939.532.735.033.832.130.530.431.129.528.727.634.332.732.031.131.229.728.028.346.345.145.844.746.744.944.342.243.842.142.341.143.943.342.942.744.742.239.641.10.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value-1046.1-1156.9-887.8-602.3-628.1-628.3-563.1-569.0-574.8-570.2-544.1-548.3-552.9-481.2-467.9-1247.4-849.4-815.3-842.4-816.4-771.3-724.5-359.9-1917.1-1773.4-1731.0-1747.9-1685.1-1463.7-1409.1-1320.6-1275.5-1289.9-1289.0-1302.7-1267.5-1298.6-1173.8-773.2-571.9-410.7-289.9-399.9-307.9
Percentage of StockholdersEquity-36.6-36.2-27.4-17.9-20.0-22.1-17.8-19.0-19.9-20.5-20.0-20.9-22.1-19.5-19.7-56.7-34.0-33.5-36.5-36.8-35.7-34.7-15.3-84.6-77.6-78.5-84.4-83.8-68.9-68.1-64.1-64.0-68.5-72.1-77.2-77.4-85.0-74.9-40.8-28.2-19.4-13.9-17.40.0
Percentage of Assets-12.5-12.5-9.0-6.3-6.6-6.0-5.3-5.4-5.4-5.2-5.1-5.4-5.4-4.7-4.6-12.5-8.4-8.1-8.4-8.4-7.9-7.2-3.8-21.7-20.1-20.5-20.8-21.6-18.6-18.2-16.7-17.3-17.3-17.9-18.1-19.3-20.1-18.5-12.5-9.9-6.9-4.9-7.40.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value28013666415236543520474844114398466348314884443747034646479744504646467647144421466348724711425142733985399936063728363738303358350633403361295828832781267622962489245026292268
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 Assets33.439.642.038.237.345.041.842.143.644.345.843.945.745.546.744.745.846.346.945.647.648.749.348.048.347.247.646.347.447.048.445.547.046.446.745.144.643.943.239.841.941.644.042.0

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value59350569350257411424551484852535769535256646254477463657475676869696869466998627686678184958410116017311033
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 Assets0.73.85.83.72.73.90.40.40.50.40.50.50.50.60.70.50.50.60.60.60.60.50.80.70.70.90.90.90.90.90.90.90.90.61.01.51.01.21.41.21.41.41.60.00.00.03.20.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value593505693502574114245514949535358715655576578
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.73.85.83.72.73.90.40.40.50.50.50.50.50.60.70.60.50.60.70.8

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312018-01-01
Value572650595477493324662571553567706569625671854
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.87.06.05.05.23.16.35.55.25.26.65.66.16.60.0

Receivables Net Current

us-gaap:ReceivablesNetCurrent

us-gaap:ReceivablesNetCurrent


Receivables
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value77388384568267351291682978078297680085488311119017958301032788817767908758770778817651691663740599621590698514538518587402404425462406
Percentage of ReceivablesNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.29.58.57.17.14.98.77.97.37.29.27.98.38.610.89.17.88.210.38.18.37.79.58.68.79.29.78.48.88.69.48.18.38.29.77.88.38.29.57.06.87.27.77.5

Inventory Net

us-gaap:InventoryNet

us-gaap:InventoryNet


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value17562254259824822432367733053280351737713650338135873529336534083713369235203448366139273612322632302928289926912776271228272504262524992396214220771984180916011780173118671392
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 Assets21.024.326.325.925.734.831.431.432.934.634.233.434.934.532.834.236.636.635.035.637.439.337.836.536.534.734.534.535.335.035.734.035.234.733.332.632.231.329.227.830.029.431.325.8

us-gaap:InventoryNet us-gaap:PublicUtilitiesInventory

an:NewVehicle


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value637136317611634171628402490248227333040287426512881281225772651295729312761264528823186288825432565229122942139220222082330
Percentage of InventoryNet36.360.567.865.970.677.375.375.777.780.678.878.480.379.776.677.879.679.478.476.778.781.180.078.879.478.379.179.579.381.482.4
Percentage of Assets7.614.717.817.118.226.923.623.725.627.927.026.228.027.525.126.629.129.027.527.329.431.930.228.729.027.227.327.528.028.529.5
Percentage of Assets an:NewVehicle0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

an:PartsAndService


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value195192188189221235245237237236221212212213211201202198199196192190184172171166167
Percentage of InventoryNet11.18.57.27.69.16.47.47.26.86.36.16.35.96.16.35.95.55.45.75.75.24.85.15.35.35.75.8
Percentage of Assets2.32.11.92.02.32.22.32.32.22.22.12.12.12.12.12.02.02.02.02.02.01.91.91.91.92.02.0
Percentage of Assets an:PartsAndService0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

an:UsedVehicle


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value923698648658493600570561546494553517493503576555553562559606587551539511494470437394420355346
Percentage of InventoryNet52.631.025.026.520.316.317.217.115.513.115.215.313.814.317.116.314.915.215.917.616.014.014.915.915.316.115.114.715.113.112.3
Percentage of Assets11.07.56.66.95.25.75.45.45.14.55.25.14.84.95.65.65.55.65.66.36.05.55.65.85.65.65.25.15.34.64.4
Percentage of Assets an:UsedVehicle0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Other Assets Current

us-gaap:OtherAssetsCurrent

us-gaap:OtherAssetsCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value21217813913915714714624331322920820320917725187859797123130129117202207204207196191192192186190204196203205202193224222209205295
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 Assets2.51.91.41.51.71.41.42.32.92.12.02.02.01.72.50.90.81.01.01.31.31.31.22.32.32.42.52.52.42.52.42.52.62.82.73.13.23.23.13.93.83.63.45.5

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value47914655448841733936367733523119292127072527
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets48.544.242.140.639.138.539.939.440.643.742.3

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

an:FurnitureFixturesAndEquipment


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1040973807720659642578569545518479
Percentage of PropertyPlantAndEquipmentGross21.720.918.017.316.817.517.318.318.719.219.0
Percentage of Assets10.59.27.67.06.66.76.97.27.68.48.0
Percentage of Assets an:FurnitureFixturesAndEquipment0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:BuildingAndBuildingImprovements


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value23332306232021212009185616831552145113211210
Percentage of PropertyPlantAndEquipmentGross48.749.551.750.851.150.550.249.849.748.847.9
Percentage of Assets23.621.921.820.720.019.420.019.620.221.320.3
Percentage of Assets us-gaap:BuildingAndBuildingImprovements0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Land


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1417137613601332126711781090997924867837
Percentage of PropertyPlantAndEquipmentGross29.629.630.331.932.232.032.532.031.632.033.1
Percentage of Assets14.313.112.813.012.612.313.012.612.814.014.0
Percentage of Assets us-gaap:Land0.00.00.00.00.00.00.00.00.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value17001700165216001600150014811400140014001332130013001200121112001200110010931100105510401009981985951930942925901883879870853826813792773756738723708689
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets20.318.316.716.716.914.214.013.413.112.812.512.812.611.711.812.111.810.910.911.410.810.410.611.111.111.311.112.111.811.611.211.911.711.911.512.412.312.212.212.812.212.011.5

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value30943107313831253143316431743130311531293155308530233000296229492950289728432807277227682667249424892433242222932272224422352186212221022095200719871960195019191884188018381713
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 Assets36.933.531.732.733.330.030.130.029.128.729.630.529.429.428.829.629.128.728.329.028.327.727.928.228.228.828.829.428.929.028.229.728.529.229.130.630.831.031.533.331.731.930.831.7

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value11871184118511861181118315011498149715091513151615081513151515291527151515111492142714371394134613411321131412651257125712591254125312331237117211721172117211721172117111421122
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 Assets14.212.812.012.412.511.214.214.314.013.814.215.014.714.814.715.415.115.015.015.414.614.414.615.215.215.715.716.216.016.215.917.016.817.117.217.918.118.518.920.319.719.919.120.8

us-gaap:Goodwill us-gaap:ReportingUnit

an:ReportingUnitDomestic


Goodwillus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-312016-12-31
Value227227227227227232231252
Percentage of Goodwill19.219.119.219.215.115.415.316.7
Percentage of Assets2.32.42.42.22.22.22.32.5
Percentage of Assets an:ReportingUnitDomestic0.00.00.00.00.00.00.00.0

an:ReportingUnitImport


Goodwillus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-312016-12-31
Value500502496498498520532558
Percentage of Goodwill42.242.342.142.133.234.435.136.9
Percentage of Assets5.15.25.34.74.74.95.25.5
Percentage of Assets an:ReportingUnitImport0.00.00.00.00.00.00.00.0

an:ReportingUnitPremiumLuxury


Goodwillus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-312016-12-31
Value457457457457714717712697
Percentage of Goodwill38.638.538.738.747.647.447.046.1
Percentage of Assets4.64.84.84.36.86.76.96.9
Percentage of Assets an:ReportingUnitPremiumLuxury0.00.00.00.00.00.00.00.0

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value521521521521522522581582582596595595579587586616615600598581544554439406392369354339335334335326328289291213213217217218217216202174
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 Assets6.25.65.35.55.54.95.55.65.45.55.65.95.65.75.76.26.16.05.96.05.65.54.64.64.44.44.24.44.34.34.24.44.44.04.03.33.33.43.53.83.73.73.43.2

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value3033023093293403333333283363430.0
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets3.63.33.13.43.63.23.23.13.13.10.0

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value473485580752740599541512504503517484474472409409409402392384380364345352343329309289277269254247242228218211205200181161172170163127
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 Assets5.65.25.97.97.85.75.14.94.74.64.84.84.64.64.04.14.04.03.94.03.93.63.64.03.93.93.73.73.53.53.23.43.33.23.03.23.23.22.92.82.92.92.72.4

Equity Securities Fv Ni

us-gaap:EquitySecuritiesFvNi

us-gaap:EquitySecuritiesFvNi


Equity
Period End2020-12-312020-09-30
Value101288
Percentage of EquitySecuritiesFvNi100.0100.0
Percentage of Assets1.03.0

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value396413335344261225290267264269306274275302309276287308303304288310299282264287264251249253263233225203235218201217202169197211164151
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 Assets4.74.53.43.62.82.12.82.62.52.52.92.72.73.03.02.82.83.13.03.12.93.13.13.23.03.43.23.23.23.33.33.23.02.83.33.33.13.43.32.93.33.62.72.8

Contract With Customer Liability Current

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:ContractWithCustomerLiabilityCurrent


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312018-01-01
Value333232323232323231313131302826
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.40.30.30.30.30.30.30.30.30.30.30.30.30.0

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value30403609416537103821499551005195559058985658517154765433563561286108572258295397557658605169447343953855388235423568358337513280339932073201283327152661246221592211225023991863
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 Assets36.338.942.138.840.447.348.449.752.254.053.151.153.253.254.961.660.256.757.955.757.058.654.150.549.745.746.245.545.346.347.444.545.644.644.443.242.042.039.737.537.338.240.234.5

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent us-gaap:BalanceSheetLocation

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OtherCurrentLiabilities


Operating
Period End2020-12-312019-12-31
Value3841
Percentage of OperatingLeaseLiabilityCurrent100.0100.0
Percentage of Assets0.40.4
Percentage of Assets us-gaap:OtherCurrentLiabilities0.00.0

Other Liabilities Current

us-gaap:OtherLiabilitiesCurrent

us-gaap:OtherLiabilitiesCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value597659535535729642708752730734679688659707774659574615566566515572529530486540495499432474429416396449395386363396348386328377360329
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 Assets7.17.15.45.67.76.16.77.26.86.76.46.86.46.97.56.65.76.15.65.85.35.75.56.05.56.45.96.45.56.15.45.65.36.35.55.95.66.35.66.75.56.46.06.1

us-gaap:OtherLiabilitiesCurrent us-gaap:BalanceSheetLocation

an:ReservesforSelfInsurance


Other
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value35322929272724
Percentage of OtherLiabilitiesCurrent6.64.64.43.84.85.15.0
Percentage of Assets0.40.30.30.30.30.30.3
Percentage of Assets an:ReservesforSelfInsurance0.00.00.00.00.00.00.0

Long Term Debt And Capital Lease Obligations

us-gaap:LongTermDebtAndCapitalLeaseObligations

us-gaap:LongTermDebtAndCapitalLeaseObligations


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value179017911792178217832076157815751576157519261962195819581959129512161615161117691738174217531747180520302103191518651792180918261907194320661864200018871634139414331340
Percentage of LongTermDebtAndCapitalLeaseObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets21.419.318.118.618.919.715.015.114.714.418.119.419.019.219.113.012.016.016.018.317.817.418.319.720.424.125.024.623.723.122.924.825.627.028.728.431.029.826.424.224.122.4

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxLiabilitiesNet


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value757695110118661358971917869
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.90.81.01.21.20.61.30.80.70.90.80.8

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value338317310304273260262255249248275281276280235231227224217209218212207204206206204194187180174169166162157148147149144144143141129111
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 Assets4.03.43.13.22.92.52.52.42.32.32.62.82.72.72.32.32.22.22.22.22.22.12.22.32.32.42.42.52.42.32.22.32.22.32.22.32.32.42.32.52.42.42.22.1

us-gaap:OtherLiabilitiesNoncurrent us-gaap:BalanceSheetLocation

an:ReservesforSelfInsurance


Other
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value47484748484746
Percentage of OtherLiabilitiesNoncurrent15.118.317.220.722.322.922.8
Percentage of Assets0.50.50.40.50.50.50.6
Percentage of Assets an:ReservesforSelfInsurance0.00.00.00.00.00.00.0

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2792792863043153063053023083150.0
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets3.33.02.93.23.32.92.92.92.92.90.0

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-31
Value48
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0
Percentage of Assets0.5

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-31
Value41
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0
Percentage of Assets0.4

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-31
Value35
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0
Percentage of Assets0.4

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value33
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.3

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-31
Value235
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets2.4

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value324346342349356
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0
Percentage of Assets3.33.33.33.33.3

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-31
Value449
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0
Percentage of Assets4.5

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2020-12-31
Value124
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0
Percentage of Assets1.3

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value28563193323533573137284631622996288227852716261825002471236922002498243423102220215820902349226422852205207220122125206820611993188217861688163815281568189420242116213820782303
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets34.134.532.735.133.227.030.028.726.925.525.525.924.324.223.122.124.624.123.022.922.020.924.625.625.926.124.725.827.026.726.127.025.324.823.425.023.724.830.635.135.636.334.842.6

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value5.7415341291835342524201918164.0302717181817155.27873666155534342383428262427201918182.0480481
Percentage of StockholdersEquity0.21.31.61.20.90.71.11.10.90.90.80.80.80.70.21.41.10.70.80.80.80.70.23.53.23.03.02.82.52.12.11.91.91.61.61.51.81.31.00.90.90.120.80.0
Percentage of Assets0.10.40.50.40.30.20.30.30.20.20.20.20.20.20.00.30.30.20.20.20.20.20.10.90.80.80.70.70.70.60.50.50.50.40.40.40.40.30.30.30.30.08.90.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value0.81.01.01.01.01.01.01.01.01.01.01.01.01.01.01.21.21.21.21.21.21.21.21.61.61.61.61.61.61.61.61.61.61.61.61.61.61.61.61.61.61.61.91.9
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.00.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value38964308406939173735345536883530343133303238314530332936283234163319323131333018291027982702410139833868375636393533343333373228313530462963287927982719264625772506236522212023
Percentage of StockholdersEquity136.4134.9125.8116.7119.0121.4116.6117.8119.0119.5119.2120.2121.3118.8119.5155.3132.8132.7135.6135.9134.9133.9115.0181.1174.3175.4181.3180.9166.3165.9161.9162.0166.6170.5175.5175.8183.1173.4139.7127.3118.4113.896.40.0
Percentage of Assets46.546.541.240.939.532.735.033.832.130.530.431.129.528.727.634.332.732.031.131.229.728.028.346.345.145.844.746.744.944.342.243.842.142.341.143.943.342.942.744.742.239.641.10.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value-1046.1-1156.9-887.8-602.3-628.1-628.3-563.1-569.0-574.8-570.2-544.1-548.3-552.9-481.2-467.9-1247.4-849.4-815.3-842.4-816.4-771.3-724.5-359.9-1917.1-1773.4-1731.0-1747.9-1685.1-1463.7-1409.1-1320.6-1275.5-1289.9-1289.0-1302.7-1267.5-1298.6-1173.8-773.2-571.9-410.7-289.9-399.9-307.9
Percentage of StockholdersEquity-36.6-36.2-27.4-17.9-20.0-22.1-17.8-19.0-19.9-20.5-20.0-20.9-22.1-19.5-19.7-56.7-34.0-33.5-36.5-36.8-35.7-34.7-15.3-84.6-77.6-78.5-84.4-83.8-68.9-68.1-64.1-64.0-68.5-72.1-77.2-77.4-85.0-74.9-40.8-28.2-19.4-13.9-17.40.0
Percentage of Assets-12.5-12.5-9.0-6.3-6.6-6.0-5.3-5.4-5.4-5.2-5.1-5.4-5.4-4.7-4.6-12.5-8.4-8.1-8.4-8.4-7.9-7.2-3.8-21.7-20.1-20.5-20.8-21.6-18.6-18.2-16.7-17.3-17.3-17.9-18.1-19.3-20.1-18.5-12.5-9.9-6.9-4.9-7.40.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value800000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01200000.01200000.01200000.01200000.01200000.01200000.01200000.01200000.01600000.01600000.01600000.01600000.01600000.01600000.01600000.01600000.01600000.01600000.01600000.01600000.01600000.01600000.01600000.01600000.01600000.01600000.01600000.01600000.01900000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value5.7415341291835342524201918164.0302717181817155.2787366615553434238342826242720191818112.0480
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 Assets0.10.40.50.40.30.20.30.30.20.20.20.20.20.20.00.30.30.20.20.20.20.20.10.90.80.80.70.70.70.60.50.50.50.40.40.40.40.30.30.30.30.20.08.9

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value38964308406939173735345536883530343133303238314530332936283234163319323131333018291027982702410139833868375636393533343333373228313530462963287927982719264625772506243423652221
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 Assets46.546.541.240.939.532.735.033.832.130.530.431.129.528.727.634.332.732.031.131.229.728.028.346.345.145.844.746.744.944.342.243.842.142.341.143.943.342.942.744.742.241.339.641.1

Treasury Stock Value

us-gaap:TreasuryStockValue

us-gaap:TreasuryStockValue


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value104611568876026286285635695745705445485524814671247849815842816771724359191717731731174716851463140913201275128912891302126712981173773571410308289399
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 Assets12.512.59.06.36.66.05.35.45.45.25.15.45.44.74.612.58.48.18.48.47.97.23.821.720.120.520.821.618.618.216.717.317.317.918.119.320.118.512.59.96.95.24.97.4

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

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value6.5207.2114.59.54.9133.53.64.1142.52.6104.62.63.14.1152.83.86.3114.84.210.07.34.04.56.16.73.44.05.45.82.74.25.65.9
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value6.5207.2114.59.54.9133.53.64.1142.52.6104.62.63.14.1152.83.86.3114.84.210.07.34.04.56.16.73.44.05.45.82.74.25.65.9
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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
Value40452643270780113103240165259-24.12449219883218531853725030198312334219932242-4.721515189432354.91921910065186-28.415354656369
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 Revenues5.88.90.75.017.22.41.94.43.15.2-0.44.61.73.81.54.01.03.60.74.50.63.90.64.40.84.00.64.9-0.14.90.34.21.05.70.14.90.52.71.85.3-0.94.61.72.02.02.4

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-79.17077-26.9-32.5-92.2-2.3-16.7-48.2-48.6-123.1-89.8-69.2-13.2-22.1-48.7-81.5-76.0-32.9-130.9-15.2-310.7-256.5-62.9-110.4-79.6-226.8-53.9-53.0-42.3-46.0-80.9-91.1-39.8-184.0-39.0-50.0-24.8-31.5-46.0-40.2-88.5-66.9-90.5-21.5-21.3
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-1.11.21.3-0.5-0.7-2.0-0.0-0.3-0.9-1.0-2.3-1.7-1.3-0.3-0.4-0.9-1.5-1.5-0.6-2.4-0.3-6.1-4.8-1.2-2.1-1.6-4.5-1.1-1.1-1.0-1.0-1.8-2.1-1.0-4.4-1.0-1.3-0.7-0.9-1.3-1.2-2.7-2.1-2.8-0.7-0.8

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-615.3-816.597-149.9-901.8347-104.4-229.7-115.3-210.9143-155.1-27.9-197.7-45.1-168.824-118.1-1.7-112.2-7.986234-171.558-121.3202-189.157-173.331-110.070-218.7150-116.716-85.6-14.5-154.566-75.8238.4-100.8-61.0
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-8.8-13.81.7-2.8-19.97.4-1.9-4.2-2.2-4.22.6-2.9-0.5-3.8-0.8-3.10.5-2.3-0.0-2.0-0.11.74.4-3.21.1-2.54.0-3.91.2-4.00.7-2.51.6-5.33.6-3.00.4-2.3-0.4-4.42.0-2.30.70.3-3.2-2.2

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-290.4-219.621993-153.7368-3.0-6.42.30.2-3.9-0.5-5.1-12.2141.0-2.0-7.8
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-4.2-3.73.81.7-3.47.9-0.1-0.10.00.0-0.1-0.0-0.1-0.20.30.0-0.0-0.2

Increase Decrease In Accounts Payable

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsPayable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-16.676-9.88338-64.1193.3-5.1-35.229-0.8-26.8-0.526-11.2-21.16.7-1.915-22.22.52016-26.426101.6-4.0-0.6207.722-13.91816-15.91633-28.4-14.247-20.36.21015
Percentage of IncreaseDecreaseInAccountsPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Inventories

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInInventories


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-506.0-343.912345-1244.637123-237.8-222.7141274-203.87117754-292.71218561-258.1-208.8146278-26.227323174-95.864-115.5311-118.2951111416493175207-178.348-147.612714865107
Percentage of IncreaseDecreaseInInventories100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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
Value40452643270780113103240165259-24.12449219883218531853725030198312334219932242-4.721515189432354.91921910065186-28.415354656369
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 Revenues5.88.90.75.017.22.41.94.43.15.2-0.44.61.73.81.54.01.03.60.74.50.63.90.64.40.84.00.64.9-0.14.90.34.21.05.70.14.90.52.71.85.3-0.94.61.72.02.02.4

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value384239151182279-232.31579910092921129793151978798115107112959711811511111610610095109928983838178736970716967564755
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues5.54.12.63.46.2-5.02.81.81.91.81.72.11.81.82.71.81.71.92.11.92.11.91.82.22.22.32.32.22.12.22.42.12.02.02.02.12.02.01.92.02.22.12.11.71.51.9

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value384239182279-232.399100929211297931519787981151071129597118115111116106100951099289838381787369707169
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues5.54.13.46.2-5.01.81.91.81.72.11.81.82.71.81.71.92.11.92.11.91.82.22.22.32.32.22.12.22.42.12.02.02.02.12.02.01.92.02.22.1
Percentage of Revenues us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value6.5207.37.2114.53.09.54.9133.53.64.1142.52.6104.62.63.14.1152.83.86.3114.84.210.07.34.04.56.16.73.44.05.45.82.74.25.65.92.33.04.66.0
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-79.17077-26.9-32.5-92.2-2.3-16.7-48.2-48.6-123.1-89.8-69.2-13.2-22.1-48.7-81.5-76.0-32.9-130.9-15.2-310.7-256.5-62.9-110.4-79.6-226.8-53.9-53.0-42.3-46.0-80.9-91.1-39.8-184.0-39.0-50.0-24.8-31.5-46.0-40.2-88.5-66.9-90.5-21.5-21.3
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-1.11.21.3-0.5-0.7-2.0-0.0-0.3-0.9-1.0-2.3-1.7-1.3-0.3-0.4-0.9-1.5-1.5-0.6-2.4-0.3-6.1-4.8-1.2-2.1-1.6-4.5-1.1-1.1-1.0-1.0-1.8-2.1-1.0-4.4-1.0-1.3-0.7-0.9-1.3-1.2-2.7-2.1-2.8-0.7-0.8

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value7441423733428363626010380101101825978905669635468446866575052495040333733363550382472372614
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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-615.3-816.597-149.9-901.8347-104.4-229.7-115.3-210.9143-155.1-27.9-197.7-45.1-168.824-118.1-1.7-112.2-7.986234-171.558-121.3202-189.157-173.331-110.070-218.7150-116.716-85.6-14.5-154.566-75.8238.4-100.8-61.0
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-8.8-13.81.7-2.8-19.97.4-1.9-4.2-2.2-4.22.6-2.9-0.5-3.8-0.8-3.10.5-2.3-0.0-2.0-0.11.74.4-3.21.1-2.54.0-3.91.2-4.00.7-2.51.6-5.33.6-3.00.4-2.3-0.4-4.42.0-2.30.70.3-3.2-2.2

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock


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
Value7103102870.01.1780.00.011330.00.076239.7390350.428485137126150519.610919666116480.14.314376.413140024416411158178838237
Percentage of PaymentsForRepurchaseOfCommonStock100.0100.0100.00.0100.0100.00.00.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Debt Instrument Interest Rate Stated Percentage

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

us-gaap:DebtInstrumentInterestRateStatedPercentage

an:SeniorNotesatFourPointFivePercentDue2025, us-gaap:SeniorNotes


Debt
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
Value4.50.0450.0450.0450.0450.0450.0450.0450.0450.0450.0450.0450.0450.0450.0450.0450.0450.0450.0450.0450.045
Percentage of DebtInstrumentInterestRateStatedPercentage100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations an:SeniorNotesatFourPointFivePercentDue2025 us-gaap:SeniorNotes0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

an:SeniorNotesatThreePointEightPercentDue2027, us-gaap:SeniorNotes


Debt
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value3.80.040.0380.0380.0380.0380.0380.0380.0380.0380.0380.038
Percentage of DebtInstrumentInterestRateStatedPercentage84.488.984.484.484.484.484.484.484.484.484.484.4
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations an:SeniorNotesatThreePointEightPercentDue2027 us-gaap:SeniorNotes0.00.00.00.00.00.00.00.00.00.00.00.0

an:SeniorNotesatThreePointFivePercentDue2024, us-gaap:SeniorNotes


Debt
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value3.50.0350.0350.0350.0350.0350.0350.0350.0350.0350.0350.035
Percentage of DebtInstrumentInterestRateStatedPercentage77.877.877.877.877.877.877.877.877.877.877.877.8
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations an:SeniorNotesatThreePointFivePercentDue2024 us-gaap:SeniorNotes0.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

us-gaap:EmployeeStockOption


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value1.22.63.13.75.24.65.06.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:EmployeeStockOption


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value52.7852.2950.248.4946.9945.0736.4328.48
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet

us-gaap:DeferredTaxAssetsNet


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value228151150146221204183162142134
Percentage of DeferredTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value7000000.05300000.04300000.06400000.05800000.05600000.04900000.04800000.06800000.06400000.06900000.02500000.09600000.0
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value4800000.04500000.08900000.05400000.02500000.02400000.02500000.02700000.06500000.06500000.07400000.0
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsValuationAllowance us-gaap:ValuationAllowanceByDeferredTaxAsset

an:DeferredTaxAssetLossCarryForwards


Deferred
Period End2020-12-312019-12-312018-12-312017-12-31
Value4800000.04500000.04300000.03600000.0
Percentage of DeferredTaxAssetsValuationAllowance100.0100.048.366.7

an:CorporateAndOtherIncomeAndAdjustments

an:CorporateAndOtherIncomeAndAdjustments


Corporate
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value-74800000.0-75400000.0-118700000.0-74500000.0-445000000.0-85700000.0-76500000.0-61300000.0-58500000.0-71300000.0-63300000.0-44300000.0-42700000.0-47200000.0-28400000.0-7900000.0-43300000.0-45900000.0-48000000.0-67000000.0-44500000.0-51500000.0-46700000.0-45500000.0-43500000.0-49300000.0-36600000.0-35300000.0-36600000.0-47400000.0-41900000.0-38300000.0-31500000.0-35700000.0-32400000.0-33600000.0-26800000.0-35200000.0
Percentage of CorporateAndOtherIncomeAndAdjustments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:DepreciationAndAmortizationExcludingDebtFinancingCostsAndDiscounts

an:DepreciationAndAmortizationExcludingDebtFinancingCostsAndDiscounts


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value47474951494846454444424241404041393736363534333232282727262525242322222220212120
Percentage of DepreciationAndAmortizationExcludingDebtFinancingCostsAndDiscounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:FloorplanInterestExpense

an:FloorplanInterestExpense


Floorplan
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value6.69.4101116252933373937323228262524212018191816141413131313131412131212111010109.7101112109.79.6
Percentage of FloorplanInterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:IncreaseDecreaseInVehicleFloorPlanPayableNonTradeNet

an:IncreaseDecreaseInVehicleFloorPlanPayableNonTradeNet


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-110.8-206.1376-178.3-461.53045-62.7-104.8-12.5113-58.435-124.2114-63.6374175-66.11213299-102.743-54.1114-45.234-41.9101-41.197-68.3322.0356768-43.358-43.1555431-23.3
Percentage of IncreaseDecreaseInVehicleFloorPlanPayableNonTradeNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:IncreaseDecreaseInVehicleFloorplanPayableTradeNet

an:IncreaseDecreaseInVehicleFloorplanPayableTradeNet


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-624.1-256.582-40.3-698.17647-185.8-168.165284-180.17463148-188.1-16.2-8.4221-237.4-194.513319-36.5248-43.6184-59.1-9.2-143.2316-104.57675206767049319-118.4-37.1-181.2178812665
Percentage of IncreaseDecreaseInVehicleFloorplanPayableTradeNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:OtherFinancingPropertyEquipment

an:OtherFinancingPropertyEquipment


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value800000.0100000.0400000.0400000.0500000.0900000.01200000.0700000.0
Percentage of OtherFinancingPropertyEquipment100.0100.0100.0100.0100.0100.0100.0100.0

an:PercentageOfNewVehicleSalesCoreBrands

an:PercentageOfNewVehicleSalesCoreBrands


Percentage
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value090.0088.1100.890000.92-0.01
Percentage of PercentageOfNewVehicleSalesCoreBrands0.0100.00.0100.00.0100.00.00.00.0100.0100.0

an:PercentageofRevenueCertainStates

an:PercentageofRevenueCertainStates


Percentageof
Period End2021-06-302021-03-312020-12-31
Value064.01.0
Percentage of PercentageofRevenueCertainStates0.0100.0100.0

an:SegmentIncomeLoss

an:SegmentIncomeLoss


Segment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value598402-339.7379259200-16.7246242213-32.8229230220247228219213224244253236251265259248258237233212223211214198194183189138132134133128122110116
Percentage of SegmentIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:SegmentIncomeLoss us-gaap:StatementBusinessSegments

an:ANReportableSegmentDomestic


Segment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value1691181071118254657065565467676066696061648385777894847974767063576466
Percentage of SegmentIncomeLoss28.229.4-31.529.531.627.0-390.428.627.226.4-166.829.329.227.326.930.227.428.728.634.433.832.731.135.632.731.928.632.330.230.025.830.430.8

an:ANReportableSegmentImport


Segment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value2031251081238865778681726885787275817571667974767085807571777765637272
Percentage of SegmentIncomeLoss34.031.2-32.032.634.032.9-465.335.333.634.1-208.837.233.933.030.435.434.333.629.832.529.532.228.232.230.930.227.632.433.130.828.434.434.0

an:ANReportableSegmentPremiumLuxury


Segment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value225158164143898011289958491768487105788380938092831028594941138485831027475
Percentage of SegmentIncomeLoss37.739.3-48.537.934.440.1-673.736.139.339.6-278.733.536.939.742.734.438.337.741.633.136.735.140.732.236.437.943.735.336.739.245.935.135.3

an:VehicleFloorplanFacilityInterestRateDuringPeriod an:FloorplanFacilitiesNewVehicleUsedVehicle

an:VehicleFloorplanFacilityInterestRateDuringPeriod

an:NewVehicleFloorplanFacilities


Vehicle
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value01.701.977-0.0050.028-0.001-0.001-0.0010.040.0010.0010.0020.031-0.0010.0030.0010.0230000.020.001000.0170000.018-0.001000.020-0.00100.022
Percentage of VehicleFloorplanFacilityInterestRateDuringPeriod0.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.00.00.0100.00.00.00.0100.0100.00.00.0100.00.0100.00.0100.0

an:UsedVehicleFloorplanFacilities


Vehicle
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value0.11.7-0.12.374-0.0050.031-0.0020-0.0010.0390.0010.0020.0010.031-0.0020.0040.0010.0220.00100.0010.0190000.0170000.0170000.018-0.0010-0.0010.022
Percentage of VehicleFloorplanFacilityInterestRateDuringPeriod0.0100.00.0120.1100.0110.7200.0-0.0100.097.5100.0200.050.0100.0200.0133.3100.095.70.00.00.095.00.00.00.0100.00.00.00.094.4-0.00.00.090.00.0-0.00.0100.0

us-gaap:AmortizationOfFinancingCostsAndDiscounts

us-gaap:AmortizationOfFinancingCostsAndDiscounts


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
Value1100000.01100000.01200000.01200000.01100000.01200000.01300000.01300000.01300000.01300000.01200000.01200000.01300000.01700000.01400000.01400000.01400000.01400000.01400000.01300000.01400000.01300000.01300000.01200000.01100000.01100000.01400000.01400000.01500000.01400000.01400000.01500000.01400000.01400000.01400000.01400000.01500000.01300000.01100000.01100000.01000000.01100000.01100000.01000000.0800000.0600000.0
Percentage of AmortizationOfFinancingCostsAndDiscounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CapitalExpendituresIncurredButNotYetPaid

us-gaap:CapitalExpendituresIncurredButNotYetPaid


Capital
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-0.6121.5-0.6-8.5174.3-1.14.5214.48.61.92625-3.23.52214-0.2-1.7168.81.32.4120.61.90.613173.7-1.79.0
Percentage of CapitalExpendituresIncurredButNotYetPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations

us-gaap:CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations


Cash
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
Value-0.1-0.10.00.00.00.00.00.00.00.00.60.00.00.0-0.1-0.2-0.5-0.3-0.3-0.2-0.2-0.3-0.3-0.2-0.2-0.4-0.2-0.3-0.2-0.31.83.9-0.3-0.2-0.60.10.20.00.20.14.00.22.0-0.9
Percentage of CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations100.0100.00.00.00.00.00.00.00.00.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerAssetReclassifiedToReceivable

us-gaap:ContractWithCustomerAssetReclassifiedToReceivable


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value7.0171.70.09.9142.50.52.624
Percentage of ContractWithCustomerAssetReclassifiedToReceivable100.0100.0100.00.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:ContractWithCustomerLiabilityRevenueRecognized


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value8.28.76.35.9108.56.27.48.5138.16.87.4
Percentage of ContractWithCustomerLiabilityRevenueRecognized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod

us-gaap:ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value5.75.45.29.93.90.00.52.02.34.67.64.16.0
Percentage of ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxesAndTaxCredits

us-gaap:DeferredIncomeTaxesAndTaxCredits


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value-0.9-19.6-13.9-7.951-68.69.0341.20.82.1100.71.0-26.7-0.43.94.21.1-8.36.14.8-13.1155.42.7-2.45.35.11.5-5.57.63.54.3117.25.03.215111.73.0
Percentage of DeferredIncomeTaxesAndTaxCredits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss

us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss


Equity
Period End2020-09-30
Value-2.0
Percentage of EquitySecuritiesFvNiUnrealizedGainLoss100.0

us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount

us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount


Equity
Period End2021-06-30
Value3.4
Percentage of EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount100.0

us-gaap:GainLossOnDispositionOfAssets1

us-gaap:GainLossOnDispositionOfAssets1


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value1.70.75.50.91.50.0256.44.48.319188.2125114209.63211126.17.09.75.61.51.44.00.18.37.70.02.2-0.1
Percentage of GainLossOnDispositionOfAssets1100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0

us-gaap:GoodwillImpairmentLoss

us-gaap:GoodwillImpairmentLoss


Goodwill
Period End2020-12-312020-09-302020-06-302020-03-312019-06-302019-03-312014-09-302014-06-302013-12-312013-09-302013-06-302012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value0.00.00.03180.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of GoodwillImpairmentLoss0.00.00.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:GoodwillImpairmentLoss us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsNonrecurring


Goodwill
Period End2020-12-312020-09-302020-06-302020-03-312019-06-302019-03-312015-12-312015-09-302015-06-302014-12-312014-09-302014-06-30
Value0.00.00.03180.00.00.00.00.00.00.00.0
Percentage of GoodwillImpairmentLoss0.00.00.0100.00.00.00.00.00.00.00.00.0

us-gaap:GoodwillImpairmentLoss us-gaap:ReportingUnit

an:ReportingUnitCollisionCenters


Goodwill
Period End2020-09-302020-06-302020-03-31
Value0.00.041
Percentage of GoodwillImpairmentLoss0.00.013.1

an:ReportingUnitPartsCenters


Goodwill
Period End2020-09-302020-06-302020-03-31
Value0.00.019
Percentage of GoodwillImpairmentLoss0.00.06.1

an:ReportingUnitPremiumLuxury


Goodwill
Period End2020-09-302020-06-302020-03-31
Value-2.980232238769531e-140.0257
Percentage of GoodwillImpairmentLoss0.00.080.9

us-gaap:GoodwillOtherIncreaseDecrease

us-gaap:GoodwillOtherIncreaseDecrease


Goodwill
Period End2020-09-302020-06-302020-03-31
Value5200000.0-2300000.00
Percentage of GoodwillOtherIncreaseDecrease100.0100.00.0

us-gaap:GoodwillOtherIncreaseDecrease us-gaap:ReportingUnit

an:ReportingUnitCollisionCenters


Goodwill
Period End2020-09-302020-06-302020-03-31
Value00-100000.0
Percentage of GoodwillOtherIncreaseDecrease0.0-0.00.0

an:ReportingUnitDomestic


Goodwill
Period End2020-09-302020-06-302020-03-31
Value0-100000.00
Percentage of GoodwillOtherIncreaseDecrease0.04.30.0

an:ReportingUnitImport


Goodwill
Period End2020-09-302020-06-302020-03-31
Value5200000.0-1900000.0-100000.0
Percentage of GoodwillOtherIncreaseDecrease100.082.60.0

an:ReportingUnitPartsCenters


Goodwill
Period End2020-09-302020-06-302020-03-31
Value00200000.0
Percentage of GoodwillOtherIncreaseDecrease0.0-0.00.0

an:ReportingUnitPremiumLuxury


Goodwill
Period End2020-09-302020-06-302020-03-31
Value0-300000.00
Percentage of GoodwillOtherIncreaseDecrease0.013.00.0

us-gaap:ImpairmentOfIntangibleAssetsExcludingGoodwill us-gaap:FairValueByMeasurementFrequency

us-gaap:ImpairmentOfIntangibleAssetsExcludingGoodwill

us-gaap:FairValueMeasurementsNonrecurring


Impairment
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value0.00.00.0590.00.39.60.00.0
Percentage of ImpairmentOfIntangibleAssetsExcludingGoodwill0.00.00.0100.00.0100.0100.00.00.0

us-gaap:ImpairmentOfIntangibleAssetsFinitelived us-gaap:FairValueByMeasurementFrequency, us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:ImpairmentOfIntangibleAssetsFinitelived

us-gaap:FairValueMeasurementsNonrecurring, us-gaap:OtherIntangibleAssets


Impairment
Period End2020-12-312020-09-302020-06-302020-03-31
Value0002400000.0
Percentage of ImpairmentOfIntangibleAssetsFinitelived0.00.00.0100.0

us-gaap:ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill

us-gaap:ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill


Impairment
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302016-12-312016-09-302013-12-312013-09-302013-06-302012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value0.00.00.0570.00.09.60.00.00.08.10.00.00.00.00.00.00.00.00.00.04.20.00.00.00.00.00.00.0
Percentage of ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill0.00.00.0100.00.00.0100.00.00.00.0100.00.00.00.00.00.00.00.00.00.00.0100.00.00.00.00.00.00.00.0

us-gaap:ImpairmentOfLongLivedAssetsHeldForUse us-gaap:FairValueByMeasurementFrequency

us-gaap:ImpairmentOfLongLivedAssetsHeldForUse

us-gaap:FairValueMeasurementsNonrecurring


Impairment
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value700000.0900000.01100000.0100000.05700000.0100000.000600000.001000000.0
Percentage of ImpairmentOfLongLivedAssetsHeldForUse100.0100.0100.0100.0100.0100.00.00.0100.00.0100.0

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTax

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTax


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-100000.0-100000.000-100000.0-100000.00-500000.0-200000.0-100000.0-200000.0-300000.0200000.0400000.0-200000.0-100000.00-100000.0-300000.0-500000.0-100000.0-300000.0-300000.0-500000.0-100000.0-200000.0-200000.0-200000.0-300000.0-400000.0-300000.0-200000.0-200000.0-200000.0300000.0-300000.0-400000.0-500000.0-500000.00-1400000.0-900000.0-800000.0-1600000.0-2800000.0-3600000.0
Percentage of IncomeLossFromDiscontinuedOperationsNetOfTax100.0100.00.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsAndOtherReceivables

us-gaap:IncreaseDecreaseInAccountsAndOtherReceivables


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-110.03816211158-403.487481.0-193.3175-52.3-42.5-214.620589-31.6-201.6236-26.149-161.2151-12.9-8.0-38.5165-34.623-74.0141-19.932-108.1183-23.620-68.8184-2.4-19.1-36.067-1.3-7.8-2.7
Percentage of IncreaseDecreaseInAccountsAndOtherReceivables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherOperatingAssets

us-gaap:IncreaseDecreaseInOtherOperatingAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-26.88.2-4.0-6.5-78.63.5-15.4-12.011-33.26.62.1257415-6.41116-4.6-3.71823-1.1-6.317-1.4156.37.1117.62.77.73.5101.89.21413-1.83.09.3-1.4-10.3-13.1-3.8
Percentage of IncreaseDecreaseInOtherOperatingAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-27.500000000000014129-14.94798-68.3-31.838-31.02.2-9.018-45.5334280-43.258-4.851-43.840-6.340-48.2544636-30.0651623-41.6646.526-29.3515.641-47.515-5.524-11.80.1
Percentage of IncreaseDecreaseInOtherOperatingLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements


Incremental
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value800000.0800000.0200000.0600000.0200000.00100000.0500000.0300000.0200000.0-100000.0400000.0500000.0600000.00400000.0300000.0500000.00700000.0700000.0700000.0-100000.01200000.01300000.01500000.0-100000.01500000.01700000.01800000.002000000.01900000.02000000.002200000.02000000.02000000.0-100000.02600000.02600000.02700000.0300000.02100000.01300000.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeInterest

us-gaap:InvestmentIncomeInterest


Investment
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0100000.0100000.0100000.0100000.0100000.0100000.0200000.0300000.0300000.0300000.0200000.0200000.0200000.0200000.0400000.0300000.0300000.0400000.0100000.0000100000.00100000.0100000.000100000.00100000.0100000.00100000.0100000.0100000.00300000.0300000.0600000.0300000.0300000.0200000.0
Percentage of InvestmentIncomeInterest0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.00.0100.0100.00.00.0100.00.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0

us-gaap:MaturitiesOfSeniorDebt

us-gaap:MaturitiesOfSeniorDebt


Maturities
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-30
Value0.00.03500.00.00.00.00.00.00.00.0
Percentage of MaturitiesOfSeniorDebt0.00.0100.00.00.00.00.00.00.00.00.0

us-gaap:MaturitiesOfSeniorDebt us-gaap:DebtInstrument

an:SeniorNotesatThreePointThreeFivePercentDue2021


Maturities
Period End2021-06-302021-03-31
Value0.0300
Percentage of MaturitiesOfSeniorDebt0.00.0

us-gaap:MaturitiesOfSeniorDebt us-gaap:DebtInstrument, us-gaap:LongtermDebtType

an:SeniorNotesatFivePointFivePercentDue2020, us-gaap:SeniorNotes


Maturities
Period End2020-09-302020-06-302020-02-292020-03-31
Value0.00.0350350
Percentage of MaturitiesOfSeniorDebt0.00.0100.00.0

an:SeniorNotesatThreePointThreeFivePercentDue2021, us-gaap:SeniorNotes


Maturities
Period End2021-01-31
Value300
Percentage of MaturitiesOfSeniorDebt0.0

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

an:SeniorNotesatThreePointThreeFivePercentDue2021, us-gaap:SeniorNotes, us-gaap:SubsequentEvent


Maturities
Period End2021-01-31
Value300
Percentage of MaturitiesOfSeniorDebt0.0

us-gaap:NetCashProvidedByUsedInFinancingActivitiesContinuingOperations

us-gaap:NetCashProvidedByUsedInFinancingActivitiesContinuingOperations


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-615.3-816.597-149.9-901.8347-104.4-229.7-115.3-210.9143-155.1-27.9-197.7-45.1-168.824-118.1-1.7-112.2-7.986234-171.558-121.3202-189.157-173.331-110.071-213.2150-116.716-85.6-14.5-154.566-75.8279.1-100.2-62.2
Percentage of NetCashProvidedByUsedInFinancingActivitiesContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NetCashProvidedByUsedInInvestingActivitiesContinuingOperations

us-gaap:NetCashProvidedByUsedInInvestingActivitiesContinuingOperations


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-79.17077-26.9-32.5-92.2-2.3-16.7-48.2-48.6-123.1-89.8-69.2-13.2-22.1-48.7-81.5-76.0-32.9-130.9-15.2-310.7-256.5-62.9-110.4-79.6-226.8-53.9-53.0-42.3-46.0-80.9-91.1-39.8-184.0-39.0-50.0-24.8-31.5-46.0-40.1-88.6-67.0-90.5-21.5-21.0
Percentage of NetCashProvidedByUsedInInvestingActivitiesContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinuingOperations

us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinuingOperations


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
Value40452643270780113103240165259-24.12449119883218531853725030198322334319932242-4.521516189412315.21922010065186-28.615350646170
Percentage of NetCashProvidedByUsedInOperatingActivitiesContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseImpairmentLoss us-gaap:FairValueByMeasurementFrequency

us-gaap:OperatingLeaseImpairmentLoss

us-gaap:FairValueMeasurementsNonrecurring


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0100000.01100000.01700000.00400000.0000200000.00000
Percentage of OperatingLeaseImpairmentLoss0.0100.0100.0100.00.0100.00.00.00.0100.00.00.00.00.0

us-gaap:OtherNoncashIncomeExpense

us-gaap:OtherNoncashIncomeExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value5.63.17.07.8-0.2-3.62.72.4-0.32.0-3.30.81.60.12.11.4-3.57.38.21.94.3-3.81.8-4.91.00.8-0.6-2.84.21.23.5-0.91.32.91.42.4-1.71.9-0.5-2.30.32.2-1.1-0.4
Percentage of OtherNoncashIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherOperatingIncomeExpenseNet

us-gaap:OtherOperatingIncomeExpenseNet


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value0.7-0.14.6-6.63.4-7.9315.13.78.7231713102414201948105.85.05.87.03.81.32.94.03.78.07.3-0.2
Percentage of OtherOperatingIncomeExpenseNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsForProceedsFromOtherInvestingActivities


Payments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-03-31
Value3.3-0.6-0.1-0.30.8-0.1-0.1-1.92.00.1-0.30.10.80.10.90.20.9-0.1-0.1-0.20.5-0.91.72.41.41.83.42.73.32.01.21.31.1-0.11.31.60.1-1.8-5.33.12.0-2.10.0
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:PaymentsForRestructuring us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan

us-gaap:PaymentsForRestructuring

an:ContractTerminationChargesOtherAssociatedClosingCostsAndInvoluntaryTerminationBenefits, an:AutoNationCollisionPartsClosure


Payments
Period End2021-06-302021-03-31
Value03300000.0
Percentage of PaymentsForRestructuring0.0100.0

us-gaap:ContractTermination, an:AutoNationCollisionPartsClosure


Payments
Period End2021-06-302021-03-31
Value0200000.0
Percentage of PaymentsForRestructuring0.06.1

us-gaap:EmployeeSeverance, an:AutoNationCollisionPartsClosure


Payments
Period End2021-06-302021-03-31
Value0700000.0
Percentage of PaymentsForRestructuring0.021.2

us-gaap:OtherRestructuring, an:AutoNationCollisionPartsClosure


Payments
Period End2021-06-302021-03-31
Value02400000.0
Percentage of PaymentsForRestructuring0.072.7

us-gaap:PaymentsOfDebtIssuanceCosts

us-gaap:PaymentsOfDebtIssuanceCosts


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-06-302019-03-312016-12-312015-12-312014-12-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value0.00.54.46.10.00.00.00.96.00.00.00.00.00.00.00.06.0130.00.00.00.0
Percentage of PaymentsOfDebtIssuanceCosts0.0100.0100.0100.00.00.00.0100.0100.00.00.00.00.00.00.00.0100.0100.00.00.00.00.0

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.017-0.099999999999999060.099999999999999060.27.90.00.00.32.70.00.00.42.30.00.10.60.4
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation0.0100.0100.0100.0100.0100.00.00.0100.0100.00.00.0100.0100.00.0100.0100.0100.0

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.00.00.00.40.00.40.04.3-0.7650.81.9194.0475.847996.3256197504527191130.00.0150.4692.81410.00.00.00.00.00.0640.0600.012
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired0.00.00.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.00.00.00.00.00.00.0100.00.0100.00.0100.0

us-gaap:PaymentsToAcquireOtherInvestments

us-gaap:PaymentsToAcquireOtherInvestments


Payments
Period End2020-09-302020-06-302020-03-312019-06-302019-03-31
Value0.00.0500.00.0
Percentage of PaymentsToAcquireOtherInvestments0.00.0100.00.00.0

us-gaap:ProceedsFromDivestitureOfBusinessesNetOfCashDivested

us-gaap:ProceedsFromDivestitureOfBusinessesNetOfCashDivested


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
Value2.41.96.82.20.00.048444.91729477.6895613249.96237436.17.7200.0151911-0.210.00.00.0100.06.80.00.00.00.03.70.01.20.67.61.92.9
Percentage of ProceedsFromDivestitureOfBusinessesNetOfCashDivested100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.00.00.0100.00.0100.00.00.00.00.0100.00.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromInsuranceSettlementInvestingActivities

us-gaap:ProceedsFromInsuranceSettlementInvestingActivities


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-312012-12-312011-12-312011-03-312010-12-312010-03-31
Value0400000.0300000.01200000.0200000.003000000.0300000.0001100000.00500000.0001200000.03100000.00001000000.0-1000000.0300000.00100000.0001800000.0
Percentage of ProceedsFromInsuranceSettlementInvestingActivities0.0100.0100.0100.0100.00.0100.0100.00.00.0100.00.0100.00.00.0100.0100.00.00.00.0100.0100.0100.00.0100.00.00.0100.0

us-gaap:ProceedsFromIssuanceOfSeniorLongTermDebt

us-gaap:ProceedsFromIssuanceOfSeniorLongTermDebt


Proceeds
Period End2020-09-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value0.00.00.00.00.00.00.00.03500.00.00.00.00.0
Percentage of ProceedsFromIssuanceOfSeniorLongTermDebt0.00.00.00.00.00.00.00.0100.00.00.00.00.00.0

us-gaap:ProceedsFromLongTermLinesOfCredit

us-gaap:ProceedsFromLongTermLinesOfCredit


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.010.03107900.00.00.00.00.00.040046718026028029032044010023054054018203503202901952452701054601053104056405018565-20.01301950.0
Percentage of ProceedsFromLongTermLinesOfCredit0.0100.0100.0100.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:ProceedsFromRepaymentsOfCommercialPaper

us-gaap:ProceedsFromRepaymentsOfCommercialPaper


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value0.00.0-140.0-30.0-130.0-170.00.0-160.030-90.0420-60.0-665.020525-177.0-33.016323261641362980.00.00.0
Percentage of ProceedsFromRepaymentsOfCommercialPaper0.00.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:ProceedsFromSaleAndMaturityOfMarketableSecurities

us-gaap:ProceedsFromSaleAndMaturityOfMarketableSecurities


Proceeds
Period End2021-06-302021-03-31
Value0.0109
Percentage of ProceedsFromSaleAndMaturityOfMarketableSecurities0.0100.0

us-gaap:ProceedsFromSaleAndMaturityOfMarketableSecurities us-gaap:SubsequentEventType

us-gaap:SubsequentEvent


Proceeds
Period End2021-03-31
Value109
Percentage of ProceedsFromSaleAndMaturityOfMarketableSecurities100.0

us-gaap:ProceedsFromSaleOfPropertyHeldForSale

us-gaap:ProceedsFromSaleOfPropertyHeldForSale


Proceeds
Period End2020-12-312020-09-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value8.28.2312.34.20.0108.00.41.83.30.021134.80.00.00.01.41.48.70.00.00.22.20.2200.00.01.83.51.10.0101.99.00.00.06.6
Percentage of ProceedsFromSaleOfPropertyHeldForSale100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.00.0100.0100.0100.00.00.00.0100.0100.0100.00.00.0100.0100.0100.0100.00.00.0100.0100.0100.00.0100.0100.0100.00.00.0100.0

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ProceedsFromStockOptionsExercised


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
Value7.72121300.01.04.74.92.90.31.81.80.913151.91.3210.64.62.60.65.95.46.4125.57.56.8152.29.92.77.99.9191.40.311268.03119245.30.2
Percentage of ProceedsFromStockOptionsExercised100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfLongTermLinesOfCredit

us-gaap:RepaymentsOfLongTermLinesOfCredit


Repayments
Period End2020-12-312020-09-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-03-31
Value0.010.00.00.00.00.04823851802602802903204401001030775615112030524030521532529022531524018050044525758010.00.0
Percentage of RepaymentsOfLongTermLinesOfCredit0.0100.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:RepaymentsOfOtherDebt

us-gaap:RepaymentsOfOtherDebt


Repayments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value1.83.81.52.01.11.81.82.68.54.21.2
Percentage of RepaymentsOfOtherDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestructuringAndRelatedCostIncurredCost us-gaap:IncomeStatementLocation, us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan

us-gaap:RestructuringAndRelatedCostIncurredCost

an:DepreciationAndAmortization, an:AcceleratedDepreciation, an:AutoNationCollisionPartsClosure


Restructuring
Period End2020-09-30
Value2.9
Percentage of RestructuringAndRelatedCostIncurredCost100.0

us-gaap:OtherOperatingIncomeExpense, an:AssetImpairmentCharges, an:AutoNationCollisionPartsClosure


Restructuring
Period End2020-09-30
Value2.8
Percentage of RestructuringAndRelatedCostIncurredCost96.6

us-gaap:OtherOperatingIncomeExpense, us-gaap:ContractTermination, an:AutoNationCollisionPartsClosure


Restructuring
Period End2020-09-30
Value7.3
Percentage of RestructuringAndRelatedCostIncurredCost251.7

us-gaap:SellingGeneralAndAdministrativeExpenses, an:AcceleratedAmortization, an:AutoNationCollisionPartsClosure


Restructuring
Period End2020-09-30
Value2.1
Percentage of RestructuringAndRelatedCostIncurredCost72.4

us-gaap:SellingGeneralAndAdministrativeExpenses, us-gaap:EmployeeSeverance, an:AutoNationCollisionPartsClosure


Restructuring
Period End2020-09-30
Value0.8
Percentage of RestructuringAndRelatedCostIncurredCost27.6

us-gaap:RestructuringAndRelatedCostIncurredCost us-gaap:ProductOrService, us-gaap:IncomeStatementLocation, us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan

an:PartsAndService, us-gaap:CostOfSales, an:InventoryValuationAdjustment, an:AutoNationCollisionPartsClosure


Restructuring
Period End2020-09-30
Value20
Percentage of RestructuringAndRelatedCostIncurredCost710.3

us-gaap:RestructuringAndRelatedCostIncurredCost us-gaap:RestructuringPlan

an:AutoNationCollisionPartsClosure


Restructuring
Period End2020-09-30
Value36
Percentage of RestructuringAndRelatedCostIncurredCost1258.6

us-gaap:RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability


Right
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value9.67.7237.41015128.11411
Percentage of RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability


Right
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value102.8-9.6-1.41611153.92.59.6
Percentage of RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value51.150.573.5448.86018.120.1735.6131.7625.93-3.9516.6722.551.154.0835.2728.5534.030.2835.5526.9322.940.7826.9424.9620.150.9117.5419.4420.84-0.1520.3224.5419.490.8718.5617.1518.80.218.35
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SharesPaidForTaxWithholdingForShareBasedCompensation us-gaap:AwardType

us-gaap:SharesPaidForTaxWithholdingForShareBasedCompensation

an:RestrictedStockAndRestrictedStockUnits


Shares
Period End2021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value200000.02260.0200000.00899.06601.077831.0607.009730.045690.0453.0141.017796.08124.01233.04788.024125.0
Percentage of SharesPaidForTaxWithholdingForShareBasedCompensation100.0100.0100.00.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensationGross us-gaap:AwardType

us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensationGross

us-gaap:RestrictedStockUnitsRSU


Stock
Period End2021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value600000.07340.0500000.002045.071171.0233130.0009837.0112820.0
Percentage of StockIssuedDuringPeriodSharesShareBasedCompensationGross100.0100.0100.00.0100.0100.0100.00.00.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value200000.0400000.0400000.0600000.0055000.0200000.0100000.090248.011227.0100000.0100000.042092.0300000.0300000.0100000.046817.0632040.00100000.0100000.026261.0200000.0200000.0300000.0600000.0200000.0400000.0300000.0700000.0100000.0500000.0100000.0400000.0500000.01100000.0100000.016489.0600000.01400000.0400000.01900000.01200000.01600000.0300000.0
Percentage of StockIssuedDuringPeriodSharesStockOptionsExercised100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value7.74.130-0.2-6.94.82.6-2.41.81.80.411151.91.3210.54.62.71.2107.310.0208.11211213.7144.11012253.30.415301143
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value-1.2-32.94.6-0.4-21.7-1.0-4.0-9.8-2.4-2.8-1.3-2.21.5-0.2-0.1-6.00.0-0.5-1.7-5.32.41.00.7-6.01.4-2.40.4-6.70.0-0.60.8-5.3-1.4-6.40.9-4.7-1.1-4.92.13.1
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation-15.6-802.415.1200.0314.5-20.8-153.8408.3-133.3-155.6-325.0-19.810.0-10.5-7.7-27.90.0-10.9-63.0-441.723.813.77.0-29.317.3-19.73.4-31.90.0-4.319.5-48.6-11.2-25.627.3-1175.0-7.1-16.217.97.2

us-gaap:TreasuryStock


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value8.937250.2145.86.67.44.24.61.713132.11.4270.55.14.46.57.76.39.3266.71411273.7143.31613312.45.116359.640
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation115.6902.484.9-100.0-214.5120.8253.8-308.3233.3255.6425.0119.890.0110.5107.7127.9100.0110.9163.0541.776.286.393.0129.382.7119.796.6131.9100.0104.380.5148.6111.2125.672.71275.0107.1116.282.192.8

us-gaap:TangibleAssetImpairmentCharges

us-gaap:TangibleAssetImpairmentCharges


Tangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-31
Value0.71.03.32.80.18.50.00.91.10.21.00.60.31.3260.2-0.20.00.06.26.90.91.62.02.30.20.80.00.00.30.70.00.00.00.52.20.0
Percentage of TangibleAssetImpairmentCharges100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.00.00.00.0100.0100.00.0

us-gaap:TreasuryStockAcquiredAverageCostPerShare us-gaap:ShareRepurchaseProgram

us-gaap:TreasuryStockAcquiredAverageCostPerShare

an:StockRepurchaseProgramBoardAuthorizedRepurchases


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value98.1779.7620.810031.950039.5434.340047.348.38043.2839.920-0.1848.6248.5147.2-0.0559.8362.78
Percentage of TreasuryStockAcquiredAverageCostPerShare100.0100.0100.00.00.0100.00.00.0100.0100.00.00.0100.0100.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStockRetiredCostMethodAmount us-gaap:StatementEquityComponents

us-gaap:TreasuryStockRetiredCostMethodAmount

us-gaap:AdditionalPaidInCapital


Treasury
Period End2021-06-30
Value40
Percentage of TreasuryStockRetiredCostMethodAmount100.0

us-gaap:CommonStock


Treasury
Period End2021-06-30
Value0.2
Percentage of TreasuryStockRetiredCostMethodAmount0.5

us-gaap:RetainedEarnings


Treasury
Period End2021-06-30
Value797
Percentage of TreasuryStockRetiredCostMethodAmount1963.5

us-gaap:TreasuryStock


Treasury
Period End2021-06-30
Value-838.0
Percentage of TreasuryStockRetiredCostMethodAmount-2064.0

us-gaap:TreasuryStockSharesAcquired us-gaap:ShareRepurchaseProgram

us-gaap:TreasuryStockSharesAcquired

an:StockRepurchaseProgramBoardAuthorizedRepurchases


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value7.53.84.70.00.02.50.00.00.31.00.00.01.60.50.09.20.90.00.61.01.07.90.42.50.8
Percentage of TreasuryStockSharesAcquired100.0100.0100.00.00.0100.00.00.0100.0100.00.00.0100.0100.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStockSharesRetired

us-gaap:TreasuryStockSharesRetired


Treasury
Period End2021-04-302017-11-302015-10-312010-10-31
Value16184330
Percentage of TreasuryStockSharesRetired100.0100.0100.0100.0

us-gaap:TreasuryStockValueAcquiredCostMethod

us-gaap:TreasuryStockValueAcquiredCostMethod


Treasury
Period End2021-06-302021-03-312020-03-312019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value7363068011330.00.073260.0400350.426505137126150519.66923666116480.24.22.5490.312740521719611158
Percentage of TreasuryStockValueAcquiredCostMethod100.0100.0100.0100.0100.00.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStockValueAcquiredCostMethod us-gaap:ShareRepurchaseProgram

an:StockRepurchaseProgramBoardAuthorizedRepurchases


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value7363063020.00.0800.00.011330.00.073260.0400340.02650503702615050
Percentage of TreasuryStockValueAcquiredCostMethod100.0100.00.00.00.0100.00.00.0100.0100.00.00.0100.0100.00.0100.098.30.099.699.697.799.9100.0100.096.7

us-gaap:TreasuryStockValueAcquiredCostMethod us-gaap:StatementEquityComponents

us-gaap:TreasuryStock


Treasury
Period End2021-06-302021-03-312020-03-312019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value7363068011330.00.073260.0400350.426505137126150519.66923666116480.24.22.5490.312740521719611158
Percentage of TreasuryStockValueAcquiredCostMethod100.0100.0100.0100.0100.00.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnrealizedGainLossOnInvestments

us-gaap:UnrealizedGainLossOnInvestments


Unrealized
Period End2020-12-312020-09-30
Value-144.6-2.0
Percentage of UnrealizedGainLossOnInvestments100.0100.0

an:CommercialPaperMaximumAggregateAmount

an:CommercialPaperMaximumAggregateAmount


Commercial
Period End2021-06-302021-03-312020-12-312020-09-302015-08-042015-05-22
Value10001000100010001000300
Percentage of CommercialPaperMaximumAggregateAmount100.0100.0100.0100.0100.0100.0

an:ContractsInTransitAndVehicleReceivables

an:ContractsInTransitAndVehicleReceivables


Contracts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value397495445338367189506415413423568431455485655461390438595364398395508376405441460330370387424317329323404260262272306171171210
Percentage of ContractsInTransitAndVehicleReceivables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:CreditSpreadImpactLeverageRatioCreditAgreement us-gaap:DebtInstrument

an:CreditSpreadImpactLeverageRatioCreditAgreement

an:RevolvingCreditFacilityDue2025


Credit
Period End2020-12-31
Value0.00125
Percentage of CreditSpreadImpactLeverageRatioCreditAgreement100.0

an:DeferredTaxAssetsLeaseLiabilities

an:DeferredTaxAssetsLeaseLiabilities


Deferred
Period End2020-12-312019-12-31
Value8085
Percentage of DeferredTaxAssetsLeaseLiabilities100.0100.0

an:DeferredTaxAssetsOperatingLossCarryforwardsAndCapitalLossCarryforwards

an:DeferredTaxAssetsOperatingLossCarryforwardsAndCapitalLossCarryforwards


Deferred
Period End2020-12-31
Value6800000.0
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsAndCapitalLossCarryforwards100.0

an:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccountsAndProvisionForLoanLosses

an:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccountsAndProvisionForLoanLosses


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1000000.0200000.01400000.01900000.03300000.02900000.03000000.03000000.04000000.04500000.05400000.0
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccountsAndProvisionForLoanLosses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantySelfInsuranceAndChargebacks

an:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantySelfInsuranceAndChargebacks


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value5350484771635749423838
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantySelfInsuranceAndChargebacks100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:DeferredTaxLiabilitiesPropertyPlantAndEquipmentAndIntangibleAssets

an:DeferredTaxLiabilitiesPropertyPlantAndEquipmentAndIntangibleAssets


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value219269225207293263233200170142107
Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipmentAndIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:DeferredTaxLiabilitiesRightOfUseAsset

an:DeferredTaxLiabilitiesRightOfUseAsset


Deferred
Period End2020-12-312019-12-31
Value7580
Percentage of DeferredTaxLiabilitiesRightOfUseAsset100.0100.0

an:FinanceLeasesIncludedInLongtermDebt us-gaap:DebtInstrument

an:FinanceLeasesIncludedInLongtermDebt

an:OtherDebt


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value11111211610510610193130131131
Percentage of FinanceLeasesIncludedInLongtermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:LeaseRightofUseAssets

an:LeaseRightofUseAssets


Lease
Period End2020-12-312019-12-31
Value412415
Percentage of LeaseRightofUseAssets100.0100.0

an:Leaseliabilities

an:Leaseliabilities


Leaseliabilities
Period End2020-12-312019-12-31
Value459459
Percentage of Leaseliabilities100.0100.0

an:ManufacturerReceivables

an:ManufacturerReceivables


Manufacturer
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value161186210181152172234203198198242201206217253222195203234213204189221200180180198151153138172136138137159124134125138107115127
Percentage of ManufacturerReceivables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:MultiemployerPlansPotentialWithdrawalObligationCeaseParticipation us-gaap:RetirementPlanName

an:MultiemployerPlansPotentialWithdrawalObligationCeaseParticipation

an:AutomotiveIndustriesPensionPlan


Multiemployer
Period End2020-12-31
Value15
Percentage of MultiemployerPlansPotentialWithdrawalObligationCeaseParticipation100.0

an:IAMNationalPensionPlan


Multiemployer
Period End2020-12-31
Value3.0
Percentage of MultiemployerPlansPotentialWithdrawalObligationCeaseParticipation20.0

an:ReceivablesBeforeAllowanceforCreditLossCurrent

an:ReceivablesBeforeAllowanceforCreditLossCurrent


Receivables
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value777887848686676513917
Percentage of ReceivablesBeforeAllowanceforCreditLossCurrent100.0100.0100.0100.0100.0100.0100.0

an:RightofUseAssetFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

an:RightofUseAssetFairValueDisclosure

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsNonrecurring


Rightof
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value5000000.05000000.01400000.01400000.0100000.0100000.0100000.0100000.00000
Percentage of RightofUseAssetFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

an:SuretyBondsLettersOfCreditAndCashDepositsTotal

an:SuretyBondsLettersOfCreditAndCashDepositsTotal


Surety
Period End2021-06-302021-03-312020-12-312020-09-30
Value100100102101
Percentage of SuretyBondsLettersOfCreditAndCashDepositsTotal100.0100.0100.0100.0

an:TradeReceivables

an:TradeReceivables


Trade
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value1601471381281221171361311221321301261301451621471421441471391371371331271251251251171091101101051041019796919394918789
Percentage of TradeReceivables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:UnrecognizedTaxBenefitsDeferredTaxAssets

an:UnrecognizedTaxBenefitsDeferredTaxAssets


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value3400000.02800000.02400000.02800000.04200000.04000000.03600000.03600000.05500000.05200000.04800000.02000000.0
Percentage of UnrecognizedTaxBenefitsDeferredTaxAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:UsedVehicleFloorplanFacilityCurrentBorrowingCapacity

an:UsedVehicleFloorplanFacilityCurrentBorrowingCapacity


Used
Period End2021-06-302021-03-312020-12-312020-09-30
Value0.20.50.3251
Percentage of UsedVehicleFloorplanFacilityCurrentBorrowingCapacity100.0100.0100.0100.0

an:UsedVehicleFloorplanFacilityRemainingBorrowingCapacity

an:UsedVehicleFloorplanFacilityRemainingBorrowingCapacity


Used
Period End2021-06-302021-03-312020-12-312020-09-30
Value245844288
Percentage of UsedVehicleFloorplanFacilityRemainingBorrowingCapacity100.0100.0100.0100.0

an:VehicleFloorplanFacilityMaximumBorrowingCapacity an:FloorplanFacilitiesNewVehicleUsedVehicle

an:VehicleFloorplanFacilityMaximumBorrowingCapacity

an:NewVehicleFloorplanFacilities


Vehicle
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value47004700470048004800470047004800480049004800480047004800470047004700460047004600460046004300410039003800360035003400330033003000300030002900
Percentage of VehicleFloorplanFacilityMaximumBorrowingCapacity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:UsedVehicleFloorplanFacilities


Vehicle
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value562482482482482482515515515515515500500500500510490450430395395360350335335315315275275275275275275275275
Percentage of VehicleFloorplanFacilityMaximumBorrowingCapacity12.010.310.310.010.010.311.010.710.710.510.710.410.610.410.610.910.49.89.18.68.67.88.18.28.68.38.87.98.18.38.39.29.29.29.5

an:VehicleFloorplanPayable

an:VehicleFloorplanPayable


Vehicle
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value157122982759230825223682357534813731403139973603383937393806363038943868384935393802403937273203332130023097277428692844302926002748254125402200212220161898151116731866
Percentage of VehicleFloorplanPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:VehicleFloorplanPayable an:FloorplanFacilitiesNewVehicleUsedVehicle

an:NewVehicleFloorplanFacilities


Vehicle
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value10001900230021002200330032003100330037003600320035003400340032003500350035003200340037003500310031002800290026002700270029002400260025002400
Percentage of VehicleFloorplanPayable63.682.783.391.087.289.689.589.188.491.890.188.891.190.989.388.189.990.590.990.489.491.693.996.893.393.393.693.794.194.995.792.394.698.494.5

an:UsedVehicleFloorplanFacilities


Vehicle
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value53742343719333738342441640837741336737433343939439737237737336431821214823218223618919916117717418280119
Percentage of VehicleFloorplanPayable34.218.415.98.413.410.411.912.010.99.410.310.29.78.911.610.910.29.69.810.59.67.95.74.67.06.17.66.86.95.75.96.76.63.24.7

an:VehicleFloorplanPayable an:FloorplanPayable

an:NonTrade


Vehicle
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value90110121218841102314851455140714731577160914951538150616271561162915811540144214621467116195010319611006862891857898763804699773641639604536468511486
Percentage of VehicleFloorplanPayable57.444.144.136.440.640.340.740.439.539.140.341.540.140.342.843.041.840.940.040.838.436.331.229.731.132.032.531.131.130.129.729.329.327.530.529.130.130.028.331.030.626.1

an:Trade


Vehicle
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value66912851541146714992197212020732257245323882107230122332179206922642286230820962340257225652253228920412090191219771986213018371944184117661559148214121362104311611379
Percentage of VehicleFloorplanPayable42.655.955.963.659.459.759.359.660.560.959.758.559.959.757.257.058.259.160.059.261.663.768.870.368.968.067.568.968.969.970.370.770.772.569.570.969.970.071.769.069.473.9

us-gaap:AccountsReceivableGrossCurrent

us-gaap:AccountsReceivableGrossCurrent


Accounts
Period End2020-12-312019-12-31
Value848917
Percentage of AccountsReceivableGrossCurrent100.0100.0

us-gaap:AccruedIncomeTaxes

us-gaap:AccruedIncomeTaxes


Accrued
Period End2021-06-302021-03-312020-12-312020-09-30
Value471101325
Percentage of AccruedIncomeTaxes100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent


Allowance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value3800000.03700000.03700000.03700000.03500000.0700000.0500000.0400000.04000000.04300000.04600000.04000000.04200000.04500000.05500000.05100000.04600000.05000000.05800000.05300000.04600000.04100000.04500000.04300000.03800000.04000000.03700000.03600000.03300000.03200000.04000000.03600000.03400000.03200000.03400000.03100000.02800000.02800000.03000000.02700000.03400000.03700000.0
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent us-gaap:FairValueByMeasurementBasis, us-gaap:StatementOperatingActivitiesSegment

us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent

us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:SegmentContinuingOperations


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value81562521373640114174986783836116941
Percentage of AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CapitalizedContractCostNetNoncurrent

us-gaap:CapitalizedContractCostNetNoncurrent


Capitalized
Period End2020-12-312019-12-312018-12-31
Value9000000.09100000.09400000.0
Percentage of CapitalizedContractCostNetNoncurrent100.0100.0100.0

us-gaap:CommercialPaper

us-gaap:CommercialPaper


Commercial
Period End2021-06-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value2000.01401703004704706306006902703309957907659429759589265994352980.0
Percentage of CommercialPaper100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:ContractWithCustomerAssetNetCurrent

us-gaap:ContractWithCustomerAssetNetCurrent


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312018-01-01
Value291825262121262526262824231918
Percentage of ContractWithCustomerAssetNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerAssetNetNoncurrent

us-gaap:ContractWithCustomerAssetNetNoncurrent


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312018-01-01
Value6.85.3106.82.37.27.0108.69.017139.75.91.4
Percentage of ContractWithCustomerAssetNetNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityNoncurrent

us-gaap:ContractWithCustomerLiabilityNoncurrent


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312018-01-01
Value585656555557575857576164646363
Percentage of ContractWithCustomerLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:DebtInstrumentCarryingAmount

an:SeniorNotesatFourPointSevenFivePercentDue2030Member, us-gaap:SeniorNotes


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-05-212019-12-31
Value5005005005005005000.0
Percentage of DebtInstrumentCarryingAmount100.0100.0100.0100.0100.0100.00.0

an:SeniorNotesatThreePointEightPercentDue2027, us-gaap:SeniorNotes


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-11-072016-12-31
Value3003003003003003003003003003003003003003003003000.0
Percentage of DebtInstrumentCarryingAmount60.060.060.060.060.00.00.00.00.00.00.00.00.00.00.00.00.0

an:SeniorNotesatThreePointFivePercentDue2024, us-gaap:SeniorNotes


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-11-072016-12-31
Value4504504504504504504504504504504504504504504504500.0
Percentage of DebtInstrumentCarryingAmount90.090.090.090.090.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value13141415169.29.810111112131314158.89.5-10.21013
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredCompensationLiabilityCurrentAndNoncurrent us-gaap:DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensation

us-gaap:DeferredCompensationLiabilityCurrentAndNoncurrent

us-gaap:DeferredCompensationArrangementWithIndividualByTypeOfCompensationPensionAndOtherPostretirementBenefits


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value9985787868
Percentage of DeferredCompensationLiabilityCurrentAndNoncurrent100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredIncomeTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value324287240218313283252221186151
Percentage of DeferredIncomeTaxLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsGross


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value233156159151224207186165148140156
Percentage of DeferredTaxAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsInventory

us-gaap:DeferredTaxAssetsInventory


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value2025232236352824201110
Percentage of DeferredTaxAssetsInventory100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value6.86.87.06.55.4137.210131415
Percentage of DeferredTaxAssetsOperatingLossCarryforwards100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value4.69.58.810176.81312151816
Percentage of DeferredTaxAssetsOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value242019183128241912
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1014211825242624201821
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value3127302533322521313547
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesInvestments

us-gaap:DeferredTaxLiabilitiesInvestments


Deferred
Period End2020-12-312019-12-31
Value196.3
Percentage of DeferredTaxLiabilitiesInvestments100.0100.0

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value10.017141120191921169.44.8
Percentage of DeferredTaxLiabilitiesOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentCurrent us-gaap:FairValueByMeasurementBasis, us-gaap:StatementOperatingActivitiesSegment

us-gaap:DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentCurrent

us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:SegmentDiscontinuedOperations


Disposal
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-31
Value1.11.18.08.08.08.08.013131314141414141313131515212222222323233434
Percentage of DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent


Employee
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value269231225214178
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized


Employee
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value19202317222420201917
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueAmount

us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueAmount


Equity
Period End2021-06-302021-03-312020-12-312020-09-30
Value56505050
Percentage of EquitySecuritiesWithoutReadilyDeterminableFairValueAmount100.0100.0100.0100.0

us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueAmount us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsNonrecurring


Equity
Period End2021-06-302019-12-312018-12-31
Value53750.0
Percentage of EquitySecuritiesWithoutReadilyDeterminableFairValueAmount94.20.00.0

us-gaap:FinanceLeaseLiability

us-gaap:FinanceLeaseLiability


Finance
Period End2020-12-31
Value134
Percentage of FinanceLeaseLiability100.0

us-gaap:FinanceLeaseLiabilityCurrent

us-gaap:FinanceLeaseLiabilityCurrent


Finance
Period End2020-12-312019-12-31
Value2726
Percentage of FinanceLeaseLiabilityCurrent100.0100.0

us-gaap:FinanceLeaseLiabilityNoncurrent us-gaap:BalanceSheetLocation

us-gaap:FinanceLeaseLiabilityNoncurrent

an:LongTermDebtNetOfCurrentMaturities


Finance
Period End2020-12-312019-12-31
Value10787
Percentage of FinanceLeaseLiabilityNoncurrent100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDue

us-gaap:FinanceLeaseLiabilityPaymentsDue


Finance
Period End2020-12-31
Value190
Percentage of FinanceLeaseLiabilityPaymentsDue100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive


Finance
Period End2020-12-31
Value110
Percentage of FinanceLeaseLiabilityPaymentsDueAfterYearFive100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths


Finance
Period End2020-12-31
Value33
Percentage of FinanceLeaseLiabilityPaymentsDueNextTwelveMonths100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive


Finance
Period End2020-12-31
Value11
Percentage of FinanceLeaseLiabilityPaymentsDueYearFive100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour


Finance
Period End2020-12-31
Value11
Percentage of FinanceLeaseLiabilityPaymentsDueYearFour100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree


Finance
Period End2020-12-31
Value11
Percentage of FinanceLeaseLiabilityPaymentsDueYearThree100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo


Finance
Period End2020-12-31
Value11
Percentage of FinanceLeaseLiabilityPaymentsDueYearTwo100.0

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount


Finance
Period End2020-12-31
Value55
Percentage of FinanceLeaseLiabilityUndiscountedExcessAmount100.0

us-gaap:FinanceLeaseRightOfUseAsset

us-gaap:FinanceLeaseRightOfUseAsset


Finance
Period End2020-12-312019-12-31
Value10282
Percentage of FinanceLeaseRightOfUseAsset100.0100.0

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent


Finance
Period End2020-12-312019-12-31
Value6.469.09
Percentage of FinanceLeaseWeightedAverageDiscountRatePercent100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value7400000.07400000.07100000.08400000.08200000.07900000.08300000.08400000.07700000.07300000.06900000.09900000.09500000.09000000.08700000.08300000.08000000.07700000.07500000.07300000.07200000.07000000.06800000.06600000.06400000.06200000.06000000.05800000.05600000.05500000.05300000.05100000.04900000.04600000.04300000.04100000.03800000.03500000.03200000.03000000.03100000.02700000.0
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:FiniteLivedIntangibleAssetsGross

us-gaap:FiniteLivedIntangibleAssetsGross


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value1919192121212323232322252424232019181615151414141312121211111111109.99.98.98.48.48.48.48.35.6
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:GoodwillFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:GoodwillFairValueDisclosure

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsNonrecurring


Goodwill
Period End2020-12-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value4574574574570.00.0
Percentage of GoodwillFairValueDisclosure100.0100.0100.0100.00.00.0

us-gaap:GoodwillImpairedAccumulatedImpairmentLoss us-gaap:ReportingUnit

us-gaap:GoodwillImpairedAccumulatedImpairmentLoss

an:ReportingUnitPremiumLuxury


Goodwill
Period End2020-12-312020-09-302020-06-302020-03-31
Value257257257257
Percentage of GoodwillImpairedAccumulatedImpairmentLoss100.0100.0100.0100.0

us-gaap:GuaranteeObligationsMaximumExposure

us-gaap:GuaranteeObligationsMaximumExposure


Guarantee
Period End2021-06-302021-03-312020-12-312020-09-30
Value10.0111112
Percentage of GuaranteeObligationsMaximumExposure100.0100.0100.0100.0

us-gaap:IndefiniteLivedFranchiseRights

us-gaap:IndefiniteLivedFranchiseRights


Indefinite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value509509509509509509566566566580580580564572572603603589589572536546432399385362348332328329329320322284285208208212212212212199
Percentage of IndefiniteLivedFranchiseRights100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IndefiniteLivedFranchiseRights us-gaap:StatementBusinessSegments

an:ANReportableSegmentDomestic


Indefinite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value1361511601681986725
Percentage of IndefiniteLivedFranchiseRights26.826.727.729.433.615.77.4

an:ANReportableSegmentImport


Indefinite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value105106108108110120122
Percentage of IndefiniteLivedFranchiseRights20.818.918.819.018.728.035.3

an:ANReportableSegmentPremiumLuxury


Indefinite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value266308310295281243199
Percentage of IndefiniteLivedFranchiseRights52.454.453.651.647.756.357.3

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwillFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwillFairValueDisclosure

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsNonrecurring


Indefinite
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value262626268.98.98.90.03131
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwillFairValueDisclosure100.0100.0100.0100.0100.0100.0100.00.0100.0100.0

us-gaap:IntangibleAssetsGrossExcludingGoodwill

us-gaap:IntangibleAssetsGrossExcludingGoodwill


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value528528528530530530589590590604602605588596595624623608605588551561446413398375360344340340340
Percentage of IntangibleAssetsGrossExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2020-12-31
Value54
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths100.0

us-gaap:LettersOfCreditOutstandingAmount

us-gaap:LettersOfCreditOutstandingAmount


Letters
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value393939393939394141414147
Percentage of LettersOfCreditOutstandingAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent

us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value7.07.1309307307305355394393393445.312414414566562165167131211132224252517171130292913292828311293118.1
Percentage of LongTermDebtAndCapitalLeaseObligationsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities

us-gaap:LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-31
Value18111812211621052106239119431980198119811983198019832388238918711787179117891782175017541767177018302055212819331839
Percentage of LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongTermDebtFairValue us-gaap:DebtInstrument, us-gaap:FairValueByMeasurementBasis

us-gaap:LongTermDebtFairValue

an:FixedRateDebt, us-gaap:CarryingReportedAmountFairValueDisclosure


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value17971798210120892090159219341969197019691970196719702373237317801778
Percentage of LongTermDebtFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

an:FixedRateDebt, us-gaap:EstimateOfFairValueFairValueDisclosure


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value20171999234123062216152720012027200119551908194419492385244218571862
Percentage of LongTermDebtFairValue112.3111.2111.4110.4106.195.9103.5102.9101.699.396.998.899.0100.5102.9104.3104.7

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive


Long
Period End2020-12-31
Value884
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths


Long
Period End2020-12-31
Value307
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive


Long
Period End2020-12-31
Value456
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour


Long
Period End2020-12-31
Value456
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree


Long
Period End2020-12-31
Value5800000.0
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo


Long
Period End2020-12-31
Value5700000.0
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo100.0

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent


Operating
Period End2020-12-312019-12-31
Value5.175.27
Percentage of OperatingLeaseWeightedAverageDiscountRatePercent100.0100.0

us-gaap:OperatingLossCarryforwards

us-gaap:OperatingLossCarryforwards


Operating
Period End2020-12-31
Value104
Percentage of OperatingLossCarryforwards100.0

us-gaap:OtherLiabilities us-gaap:BalanceSheetLocation

us-gaap:OtherLiabilities

an:ReservesforSelfInsurance


Other
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value82807778757471
Percentage of OtherLiabilities100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherReceivablesGrossCurrent

us-gaap:OtherReceivablesGrossCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302011-12-31
Value57575538333538393532313242394474454948655750383640353746353036343931393641
Percentage of OtherReceivablesGrossCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PropertyPlantAndEquipmentFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:PropertyPlantAndEquipmentFairValueDisclosure

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsNonrecurring


Property
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value106.01.81.81.80.00.00.00.00.00.0
Percentage of PropertyPlantAndEquipmentFairValueDisclosure100.0100.0100.0100.0100.00.00.00.00.00.00.0

us-gaap:PropertyPlantAndEquipmentFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:StatementOperatingActivitiesSegment

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsNonrecurring, us-gaap:SegmentContinuingOperations


Property
Period End2020-12-312019-12-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312015-09-302015-06-302014-12-312014-09-30
Value1.80.00.00.00.00.00.00.00.00.05.95.94.22410150.00.0
Percentage of PropertyPlantAndEquipmentFairValueDisclosure0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue

us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue


Restricted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value200000.0100000.0100000.0100000.0100000.0100000.0500000.0500000.0800000.0900000.0800000.0700000.0700000.01400000.01900000.0
Percentage of RestrictedCashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestructuringAndRelatedCostExpectedCost1 us-gaap:IncomeStatementLocation, us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan

us-gaap:RestructuringAndRelatedCostExpectedCost1

us-gaap:OtherOperatingIncomeExpense, an:AssetImpairmentCharges, an:AutoNationCollisionPartsClosure


Restructuring
Period End2020-12-312020-09-30
Value5.13.0
Percentage of RestructuringAndRelatedCostExpectedCost1100.0100.0

us-gaap:OtherOperatingIncomeExpense, us-gaap:ContractTermination, an:AutoNationCollisionPartsClosure


Restructuring
Period End2020-12-312020-09-30
Value3.27.3
Percentage of RestructuringAndRelatedCostExpectedCost162.7243.3

us-gaap:SellingGeneralAndAdministrativeExpenses, us-gaap:EmployeeSeverance, an:AutoNationCollisionPartsClosure


Restructuring
Period End2020-12-312020-09-30
Value1.11.2
Percentage of RestructuringAndRelatedCostExpectedCost121.640.0

us-gaap:SellingGeneralAndAdministrativeExpenses, us-gaap:OtherRestructuring, an:AutoNationCollisionPartsClosure


Restructuring
Period End2020-12-312020-09-30
Value2.64.5
Percentage of RestructuringAndRelatedCostExpectedCost151.0150.0

us-gaap:RestructuringAndRelatedCostExpectedCost1 us-gaap:ProductOrService, us-gaap:IncomeStatementLocation, us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan

an:PartsAndService, us-gaap:CostOfSales, an:InventoryValuationAdjustment, an:AutoNationCollisionPartsClosure


Restructuring
Period End2020-12-312020-09-30
Value1720
Percentage of RestructuringAndRelatedCostExpectedCost1345.1686.7

us-gaap:RestructuringAndRelatedCostExpectedCost1 us-gaap:RestructuringPlan

an:AutoNationCollisionPartsClosure


Restructuring
Period End2020-12-312020-09-30
Value3643
Percentage of RestructuringAndRelatedCostExpectedCost1719.61456.7

us-gaap:RestructuringReserve us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan

us-gaap:RestructuringReserve

an:ContractTerminationChargesOtherAssociatedClosingCostsAndInvoluntaryTerminationBenefits, an:AutoNationCollisionPartsClosure


Restructuring
Period End2021-06-302021-03-312020-12-31
Value100000.0100000.03400000.0
Percentage of RestructuringReserve100.0100.0100.0

us-gaap:ContractTermination, an:AutoNationCollisionPartsClosure


Restructuring
Period End2020-12-31
Value200000.0
Percentage of RestructuringReserve5.9

us-gaap:EmployeeSeverance, an:AutoNationCollisionPartsClosure


Restructuring
Period End2021-06-302021-03-312020-12-31
Value100000.0100000.0800000.0
Percentage of RestructuringReserve100.0100.023.5

us-gaap:OtherRestructuring, an:AutoNationCollisionPartsClosure


Restructuring
Period End2020-12-31
Value2400000.0
Percentage of RestructuringReserve70.6

us-gaap:RevenueRemainingPerformanceObligation

us-gaap:RevenueRemainingPerformanceObligation


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value9188888787898989888892952928
Percentage of RevenueRemainingPerformanceObligation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber

us-gaap:RestrictedStockUnitsRSU


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value1900000.01661200.01028500.0519610.00
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber100.0100.0100.0100.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:RestrictedStockUnitsRSU


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value41.3640.5646.6943.220
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0100.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant

us-gaap:EmployeeStockOption


Share
Period End2020-12-312016-12-31
Value3100000.03300000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:EmployeeStockOption


Share
Period End2020-12-31
Value19
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue100.0

us-gaap:ShortTermDebtWeightedAverageInterestRate us-gaap:ShortTermDebtType

us-gaap:ShortTermDebtWeightedAverageInterestRate

us-gaap:CommercialPaper


Short
Period End2021-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value0.250.0330.02130.02410.02870.02970.03220.02770.02640.02260.01970.0180.01720.0126
Percentage of ShortTermDebtWeightedAverageInterestRate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1 us-gaap:ShareRepurchaseProgram

us-gaap:StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1

an:StockRepurchaseProgramBoardAuthorizedRepurchases


Stock
Period End2021-06-302021-03-312020-12-31
Value155891197
Percentage of StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1100.0100.0100.0

us-gaap:StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1 us-gaap:ShareRepurchaseProgram, us-gaap:SubsequentEventType

an:StockRepurchaseProgramBoardAuthorizedRepurchases, us-gaap:SubsequentEvent


Stock
Period End2020-10-19
Value500
Percentage of StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount10.0

us-gaap:TaxCreditCarryforwardAmount

us-gaap:TaxCreditCarryforwardAmount


Tax
Period End2020-12-31
Value1900000.0
Percentage of TaxCreditCarryforwardAmount100.0

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value8400000.07500000.06600000.06800000.06100000.05500000.05300000.05100000.04500000.04000000.03700000.03100000.0
Percentage of UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value1210.08.5107.77.16.66.35.85.25.73.6
Percentage of UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ValuationAllowancesAndReservesBalance us-gaap:ValuationAllowancesAndReservesType

us-gaap:ValuationAllowancesAndReservesBalance

an:ChargebacksReserves


Valuation
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value1421341281201169784675646424861
Percentage of ValuationAllowancesAndReservesBalance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Line plots across dimensions of each concept


Cost Ratio
us-gaap:ProductOrService
(None,)
Cost  Ratious-gaap: Product Or Service
Gross Margin
us-gaap:ProductOrService
(None,)
Gross  Marginus-gaap: Product Or Service
TTM Greenblatt ROC
_
(None,)
T T M  Greenblatt  R O C_
us-gaap:CostOfRevenue
us-gaap:ProductOrService
(None,)
Cost Of Revenueus-gaap: Product Or Service
us-gaap:GrossProfit
us-gaap:ProductOrService
(None,)
Gross Profitus-gaap: Product Or Service
us-gaap:Revenues
us-gaap:StatementBusinessSegments
(None,)
Revenuesus-gaap: Statement Business Segments
us-gaap:Revenues
us-gaap:ProductOrService
(None,)
Revenuesus-gaap: Product Or Service
us-gaap:Revenues
us-gaap:TimingOfTransferOfGoodOrService
(None,)
Revenuesus-gaap: Timing Of Transfer Of Good Or Service
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:InventoryNet
us-gaap:PublicUtilitiesInventory
(None,)
Inventory Netus-gaap: Public Utilities Inventory
us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType
(None,)
Property Plant And Equipment Grossus-gaap: Property Plant And Equipment By Type
us-gaap:Goodwill
us-gaap:ReportingUnit
(None,)
Goodwillus-gaap: Reporting Unit
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components
us-gaap:DebtInstrumentInterestRateStatedPercentage
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
(None, 'us-gaap:SeniorNotes')
Debt Instrument Interest Rate Stated Percentageus-gaap: Debt Instrument, us-gaap: Longterm Debt Type