MUSA


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

Table of contents



us-gaap:CommonStockValue

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:ComprehensiveIncomeNetOfTax
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
us-gaap:ConsolidationItems
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems, us-gaap:ProductOrService
us-gaap:CostOfGoodsAndServicesSold
us-gaap:ProductOrService

us-gaap:IncomeLossFromContinuingOperations
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:IncomeTaxExpenseBenefit
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:IncomeTaxesPaidNet

us-gaap:InterestExpense
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:InterestPaidNet

us-gaap:NetIncomeLoss
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems, us-gaap:StatementEquityComponents
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:NonoperatingIncomeExpense
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:OperatingExpenses
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:OperatingIncomeLoss
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax
us-gaap:StatementEquityComponents

us-gaap:OtherNonoperatingIncomeExpense
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems, us-gaap:ProductOrService
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:ProductOrService
us-gaap:ConsolidationItems, us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ProductOrService

us-gaap:SellingGeneralAndAdministrativeExpense
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:Assets
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:Liabilities
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:LiabilitiesAndStockholdersEquity
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
us-gaap:ConsolidationItems

us-gaap:StockholdersEquity
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems, us-gaap:StatementEquityComponents
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:AssetsCurrent
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:CashAndCashEquivalentsAtCarryingValue
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:AccountsReceivableNetCurrent
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:InventoryNet
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:InventoryLIFOReserve

us-gaap:InventoryRawMaterialsAndSupplies

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:PropertyPlantAndEquipmentNet
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
us-gaap:ConsolidationItems

us-gaap:Goodwill
us-gaap:BusinessAcquisition

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:AccruedIncomeTaxesCurrent
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:LiabilitiesCurrent
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:TaxesPayableCurrent

us-gaap:DebtAndCapitalLeaseObligations

us-gaap:LongTermDebtAndCapitalLeaseObligations
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:DeferredIncomeTaxLiabilitiesNet
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

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:ConsolidatedEntities, us-gaap:ConsolidationItems
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems, us-gaap:StatementEquityComponents
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapital
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:RetainedEarningsAccumulatedDeficit
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
us-gaap:ConsolidationItems

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:TreasuryStockValue
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:NetCashProvidedByUsedInInvestingActivities
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:NetCashProvidedByUsedInFinancingActivities
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInInventories

us-gaap:NetCashProvidedByUsedInOperatingActivities
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:NetIncomeLoss
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems, us-gaap:StatementEquityComponents
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInInvestingActivities
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:PaymentsToAcquireProductiveAssets
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:NetCashProvidedByUsedInFinancingActivities
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:PaymentsOfDividends

us-gaap:PaymentsForRepurchaseOfCommonStock
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:DeferredTaxLiabilities

us-gaap:UnrecognizedTaxBenefits

musa:AssetRetirementObligationAdditionalAcquired

musa:OtherComprehensiveIncomeLossCashFlowHedgeRealizedGainLossBeforeReclassificationAndTax
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeInstrumentRisk
musa:OtherComprehensiveIncomeLossCashFlowHedgeUnrealizedGainLossBeforeReclassificationAndTax

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:AssetRetirementObligationAccretionExpense
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:AssetRetirementObligationLiabilitiesIncurred

us-gaap:AssetRetirementObligationLiabilitiesSettled

us-gaap:BusinessCombinationAcquisitionRelatedCosts
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisition
us-gaap:CashAcquiredFromAcquisition

us-gaap:CommonStockDividendsPerShareDeclared

us-gaap:DeferredIncomeTaxesAndTaxCredits
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:DepreciationAndAmortization
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:DividendsCommonStock
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:DividendsShareBasedCompensation

us-gaap:EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions

us-gaap:ExciseAndSalesTaxes

us-gaap:FinanceLeaseInterestExpense

us-gaap:FinanceLeaseInterestPaymentOnLiability

us-gaap:FinanceLeasePrincipalPayments

us-gaap:FinanceLeaseRightOfUseAssetAmortization

us-gaap:GainLossOnSaleOfPropertyPlantEquipment
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:GoodwillAcquiredDuringPeriod
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
us-gaap:IncomeLossFromSubsidiariesNetOfTax
us-gaap:ConsolidationItems

us-gaap:IncomeTaxReconciliationOtherAdjustments

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable

us-gaap:IncreaseDecreaseInOperatingCapital
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:InterestIncomeOther
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:LeaseCost

us-gaap:OciBeforeReclassificationsBeforeTaxAttributableToParent

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeasePayments

us-gaap:OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax
us-gaap:DerivativeInstrumentRisk

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:OtherComprehensiveIncomeLossTaxPortionAttributableToParent1

us-gaap:OtherOperatingActivitiesCashFlowStatement
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:PaymentsForProceedsFromOtherInvestingActivities
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:PaymentsOfDebtIssuanceCosts
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
us-gaap:PaymentsOfDistributionsToAffiliates

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
us-gaap:BusinessAcquisition
us-gaap:PaymentsToAcquireBusinessesGross
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired
us-gaap:BusinessAcquisition
us-gaap:CreditFacility, us-gaap:LongtermDebtType
us-gaap:ProceedsFromRepaymentsOfSecuredDebt

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType, us-gaap:PlanName
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
us-gaap:AwardType, us-gaap:PlanName
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType, us-gaap:PlanName
us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
us-gaap:AwardType, us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems, us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation
us-gaap:StatementEquityComponents
us-gaap:ShareRepurchaseProgram
us-gaap:TreasuryStockAcquiredAverageCostPerShare

us-gaap:TreasuryStockValueAcquiredCostMethod
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:BusinessAcquisition
musa:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedExpenses
us-gaap:BusinessAcquisition
musa:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetRetirementObligation
us-gaap:BusinessAcquisition
musa:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredCreditsAndOtherLiabilities
us-gaap:BusinessAcquisition
musa:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseLiabilities
us-gaap:BusinessAcquisition
musa:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRightOfUseAssets

musa:DebtInstrumentCovenantComplianceFixedChargeCoverageRatio

musa:DebtInstrumentCovenantComplianceSecuredLeverageRatio

musa:DeferredTaxAssetOperatingLeaseRightOfUseAsset

musa:DeferredTaxLiabilitiesOperatingLeaseRightOfUseAsset

musa:FinanceLeaseLiabilityToBePaidAfterYearFour

musa:FinanceLeaseRightOfUseAssetAccumulatedDepreciation

musa:LeaseLiability

musa:LeaseRightofUseAsset

musa:LesseeOperatingLeaseLiabilityToBePaidAfterYearFour

musa:LineOfCreditFacilityDividendRestrictionShortfallOfNetIncomeAndRetainedEarnings
us-gaap:AwardType
musa:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingFairValue
us-gaap:AwardType, us-gaap:PlanName
us-gaap:AwardType, us-gaap:PlanName
musa:SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsOutstandingFairValue
us-gaap:PlanName
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
us-gaap:AccountsPayableRelatedPartiesCurrent

us-gaap:AccountsPayableTradeCurrent

us-gaap:AccrualForTaxesOtherThanIncomeTaxesCurrent

us-gaap:AccruedInsuranceCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AssetRetirementObligation

us-gaap:AssetRetirementObligationsNoncurrent
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCapitalLeaseObligation
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet
us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentCarryingAmount
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:CreditFacility, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentFaceAmount
us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentInterestRateEffectivePercentage
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentUnamortizedDiscount
us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DeferredCreditsAndOtherLiabilities
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsPropertyPlantAndEquipment

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesTaxDeferredIncome

us-gaap:DerivativeCollateralRightToReclaimCash
us-gaap:BalanceSheetLocation
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeNotionalAmount

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:ExcessOfReplacementOrCurrentCostsOverStatedLIFOValue

us-gaap:FIFOInventoryAmount

us-gaap:FinanceLeaseLiability
us-gaap:LeaseContractualTerm

us-gaap:FinanceLeaseLiabilityCurrent

us-gaap:FinanceLeaseLiabilityNoncurrent

us-gaap:FinanceLeaseLiabilityPaymentsDue

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo

us-gaap:FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount

us-gaap:FinanceLeaseRightOfUseAsset

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent

us-gaap:FiniteLivedIntangibleAssetsGross

us-gaap:InventoryRawMaterialsAndSuppliesNetOfReserves

us-gaap:LIFOInventoryAmount

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear

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

us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
us-gaap:FairValueByMeasurementBasis
us-gaap:LongTermDebtFairValue
us-gaap:LossContingenciesByNatureOfContingency
us-gaap:LossContingencyAccrualAtCarryingValue
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:OffMarketLeaseUnfavorable

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent
us-gaap:RetirementPlanType
us-gaap:OtherPostretirementDefinedBenefitPlanLiabilitiesCurrentAndNoncurrent

us-gaap:PrepaidExpenseCurrent
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:RetailRelatedInventoryMerchandise
us-gaap:CreditFacility
us-gaap:SecuredDebtCurrent
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
us-gaap:AwardType, us-gaap:PlanName
us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1

us-gaap:UnamortizedDebtIssuanceExpense

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
us-gaap:UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchased
us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnFifthAnniversary
us-gaap:UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchased
us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary
us-gaap:UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchased
us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversary
us-gaap:UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchased
us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary
us-gaap:UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchased
us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary
us-gaap:ValuationAllowancesAndReservesType
us-gaap:ValuationAllowancesAndReservesBalance

us-gaap:WorkersCompensationLiabilityCurrentAndNoncurrent

Plots across concepts


IncomeStatement
Net Income Loss
Expenses
Other Nonoperating Income Expense
Balance Sheet
Intangible Assets Net Excluding Goodwill
Assets
Cash And Cash Equivalents At Carrying Value
Current Assets
Cash And Cash Equivalents At Carrying Value
NonCurrent Assets
Other Assets Noncurrent
PropertyPlantAndEquipmentNet
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
Liabilities
Operating Lease Liability
Current Liabilities
Accrued Income Taxes Current
Noncurrent Liabilities
Deferred Income Tax Liabilities Net
Stockholders Equity
Accumulated Other Comprehensive Income Loss Net Of Tax
Per Share
Common Stock Dividends Per Share Declared
CashFlow
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInOperatingActivities
Gain Loss On Sale Of Property Plant Equipment
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInFinancingActivities
Net Cash Provided By Used In Financing Activities
Shares
Weighted Average Number Of Shares Outstanding Basic
DividendsAndRepurchase
Dividends Common Stock
OperatingLeaseLiability
Operating Lease Liability Current
NonoperatingIncomeExpense
Nonoperating Income Expense
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Remainder Of Fiscal Year
FiniteLivedIntangibleAssets
Finite Lived Intangible Assets Net
AccountsReceivable
Allowance For Doubtful Accounts Receivable Current

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:CommonStockValue ██████████████▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁0.50.50.50.50.50.50.50.50.50.50.50.50.50.50.4680.4680.4680.4680.4680.4680.4680.4680.4680.4680.4680.4680.4680.4680.4680.4680.467NANANANANANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding ▁█26.91727.488NA29.49929.49530.541NA31.70432.32832.42NA32.53632.84234.062NA35.74536.86136.88NA39.17439.7241.255NA42.7644.40946.036NA46.0946.52746.884NA46.75946.74346.743NA46.743NANA
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic ▁█26.57927.131NA29.11129.18130.235NA31.44732.11232.206NA32.21332.5533.698NA35.42336.52536.88NA38.89639.3640.909NA42.43744.07845.633NA45.72646.23346.75NA46.74346.74346.743NA46.743NANA
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount █▁0.1062280.101791NANA0.09660.146487NANANANANANANANANANANANANANANANANANANANANANANANANA0.05925NANANANANANA
us-gaap:EarningsPerShareBasic ▇▄▄▄█▅▃▄▂▁▄▃▃▃▅▄▃▁▃▃▃▄▃▃▂▂▄▃▃▂▄▂▃▂▂▂▃▁4.852.042.252.35.792.951.562.21.020.162.41.41.591.173.621.921.52-0.081.161.171.182.11.61.420.590.52.151.371.580.212.00.891.660.470.410.241.42-0.27
us-gaap:EarningsPerShareDiluted ▇▄▄▄█▅▃▄▂▂▄▃▃▃▅▄▃▁▃▃▃▄▃▃▂▂▄▃▃▂▄▂▃▂▂▂▃▁4.792.012.19999999999999932.275.732.921.542.181.010.162.381.381.581.163.581.91.51-0.081.141.161.172.081.581.410.590.52.131.361.570.212.00.891.660.470.410.241.42-0.27
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
 COGS Ratio us-gaap:ConsolidatedEntities,us-gaap:ConsolidationItems,us-gaap:ProductOrService srt:SubsidiaryIssuer,srt:ReportableLegalEntities,musa:MerchandiseNANANA756.8767.1687.5674.0681.1658.8606.2615.5623.7616.1567.7NANANANANANANANANANANANANANANANANANANANANANANANA
 COGS Ratio us-gaap:ConsolidatedEntities,us-gaap:ConsolidationItems,us-gaap:ProductOrService srt:SubsidiaryIssuer,srt:ReportableLegalEntities,us-gaap:ProductNANANA2056.01588.92480.22778.82965.53129.72499.82875.63151.53193.72637.62737.02580.9NANANANANANANANANANANANANANANANANANANANANANA
 COGS Ratio us-gaap:ConsolidatedEntities,us-gaap:ConsolidationItems,us-gaap:ProductOrService srt:SubsidiaryIssuer,srt:ReportableLegalEntities,us-gaap:ProductAndServiceOtherNANANA26.123.617.1NA11.011.910.4NA12.819.238.9NANANANANANANANANANANANANANANANANANANANANANANANA
 COGS Ratio us-gaap:ProductOrService musa:Merchandise█▆▄▄▅▃▃▃▃▂▂▂▂▁▁▂963.4833.2743.7756.8767.1687.5674.0681.1658.8606.2615.5623.7616.1567.7595.6605.6NANANANANANANANANANANANANANANANANANANANANANA
 COGS Ratio us-gaap:ProductOrService musa:ProductPetroleum█▁3404.52635.8NANA1588.92480.2NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 COGS Ratio us-gaap:ProductOrService us-gaap:ProductNANA2083.52056.01588.92480.22778.82965.53129.72499.82875.63151.53193.72637.62737.02580.9NANANANANANANANANANANANANANANANANANANANANANA
 COGS Ratio us-gaap:ProductOrService us-gaap:ProductAndServiceOther█▁88.168.1NA26.223.617.1NA11.011.910.4NA12.819.238.9NA49.8NANANANANANANANANANANANANANANANANANANANANANA
 EBT Margin us-gaap:ConsolidatedEntities,us-gaap:ConsolidationItems srt:GuarantorSubsidiaries,srt:ReportableLegalEntitiesNANANA0.1NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:ConsolidatedEntities,us-gaap:ConsolidationItems srt:GuarantorSubsidiaries,srt:ReportableLegalEntitiesNANANA0.1NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
 TTM Greenblatt ROC _ _▇▄▄▄█▅▃▅▃▁▄▃▃▃▃▄▄▁▃▃▃▃▃▄▃▂▅▄▄▂▂▃▄190.294.692.4100.3235.5130.873.5120.755.718.6113.070.082.160.064.612117.902101.2972.8876.96679.28184.46359.15554.369106.39254.22241.109145.172108.816117.23323.2536.09565.859114.638NANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:AllocatedShareBasedCompensationExpense ▅▅▅▆▅▅▄▅▅▅▄▄▄▄▅▄▄▄▄▄▅▄▄▄▄▄▅▅▄▄█▁3.83.63.35.42.82.82.52.62.82.62.42.22.42.22.7952.1761.3161.2082.3692.1453.21.62.2152.42.4971.9033.0352.5512.3272.5228.931-3.84NANA8.416NANANA
us-gaap:ComprehensiveIncomeNetOfTax ▆▃▃▄█▄▃▄▂▁129.055.561.267.3168.486.648.369.232.75.3NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ConsolidatedEntities,us-gaap:ConsolidationItems,us-gaap:ProductOrService srt:GuarantorSubsidiaries,srt:ReportableLegalEntities,us-gaap:ProductAndServiceOtherNANANA0.10.00.0NA0.00.00.0NA0.00.00.0NANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ConsolidatedEntities,us-gaap:ConsolidationItems,us-gaap:ProductOrService srt:SubsidiaryIssuer,srt:ReportableLegalEntities,musa:MerchandiseNANANA638.7648.7580.0568.8569.9553.3508.7513.3519.2513.8476.2NANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ConsolidatedEntities,us-gaap:ConsolidationItems,us-gaap:ProductOrService srt:SubsidiaryIssuer,srt:ReportableLegalEntities,us-gaap:ProductNANANA1862.21287.82259.82602.62749.62973.72381.52666.22991.33032.52561.12611.62419.1NANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ConsolidatedEntities,us-gaap:ConsolidationItems,us-gaap:ProductOrService srt:SubsidiaryIssuer,srt:ReportableLegalEntities,us-gaap:ProductAndServiceOtherNANANA142.8131.8135.1NA143.4145.6132.8NA139.7134.8127.4NANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService musa:Merchandise█▆▅▅▅▃▃▃▃▂▂▂▂▁▂▂778.9684.8628.3638.7648.7580.0568.8569.9553.3508.7513.3519.2513.8476.2498.5507.9NANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService musa:ProductPetroleum█▁3175.22476.1NANA1287.82259.8NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService us-gaap:ProductNANA1915.91862.21287.82259.82602.62749.62973.72381.52666.22991.33032.52561.12611.62419.1NANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService us-gaap:ProductAndServiceOther█▁208.9177.1NA142.9131.8135.1NA143.4145.6132.8NA139.7134.8127.4NA130.4NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncomeLossFromContinuingOperations NANANA66.9168.989.3NA69.232.75.3NA45.051.839.3NA67.955.5NANANANANANANANANANANANANANANANANANANANANA
 us-gaap:IncomeLossFromContinuingOperations us-gaap:ConsolidatedEntities,us-gaap:ConsolidationItems srt:GuarantorSubsidiaries,srt:ReportableLegalEntitiesNANANA-0.2-0.2-0.1NA-0.1-0.1-0.2NA0.00.00.0NA0.0NANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:IncomeLossFromContinuingOperations us-gaap:ConsolidatedEntities,us-gaap:ConsolidationItems srt:SubsidiaryIssuer,srt:ReportableLegalEntitiesNANANA67.1169.189.4NA69.332.85.5NA45.051.839.3NA67.9NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest █▁170.073.3NA88.1223.0117.3NA91.343.35.9NA57.069.147.3NA108.789.9NANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncomeTaxExpenseBenefit ▇▆▆▆█▇▆▆▆▅▆▆▆▅▁▇▇▅▆▆▇█▆▇▆▆█▇▇▅▆▆▇▆▆▆41.218.019.721.254.128.014.322.110.60.623.012.017.38.0-73.63140.78934.411-6.81123.01526.26527.78853.47115.26834.04314.8417.08948.67937.68134.3815.611.71125.79144.76514.34417.9258.8NANA
us-gaap:IncomeTaxesPaidNet NANA30.051.016.0-0.510.79.75.80.75.42.56.92.622.416.212.80.313.32842.408-1.23616.335.6718.732NANANANANANANANANANANANANANA
us-gaap:InterestExpense ██▅▅▅▅▅▆▅▅▅▅▅▅▅▅▅▄▄▄▄▄▄▄▄▄▄▄▄▄▄▃▁▁▁▁20.421.312.512.413.013.312.815.313.213.613.313.213.413.012.79212.72611.6449.4989.92410.18210.219.3888.4918.3828.3298.3298.4128.61210.5279.0959.5834.7150.0160.1270.0330.066NANA
us-gaap:InterestPaidNet ▅▇▄▆▅▆▅█▄▆▄▆▄▆▄▆▁▇▁▇▁▆13.018.410.113.610.714.710.620.59.316.29.416.19.215.79.115.30.616.51.917.12.016.1NANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss ▆▄▄▄█▅▃▄▃▂▄▃▃▃▆▄▄▁▃▃▃▅▄▄▂▂▅▄▄▂▅▃▄▂▂▂▄▁128.855.361.066.9168.989.347.669.232.75.377.545.051.839.3124.967.88755.563-3.02643.845.49146.3185.87466.760.53126.19122.93298.362.65173.2329.63393.641.72977.622.119.111.00166.2-12.7
us-gaap:NonoperatingIncomeExpense ▂▂▂▂▂▂▂▁▂▂▂▂▂▂▂▂▂▂▂▂▂█▂▂▂▃▃▂▂▂▂▃▃▃▃▃-20.2-21.3-11.7-12.2-12.5-13.5-11.6-29.4-12.4-12.7-12.5-13.0-13.0-12.7-13.403-9.226-11.323-12.717-10.134-7.525-10.36580.19-9.868-12.328-13.191-1.0881.854-8.484-9.62-8.798-9.4621.6610.4450.179-1.0270.054NANA
 us-gaap:NonoperatingIncomeExpense us-gaap:ConsolidatedEntities,us-gaap:ConsolidationItems srt:GuarantorSubsidiaries,srt:ReportableLegalEntitiesNANANA-0.2-0.2-0.1-0.1-0.1-0.2-0.2-0.50.00.00.00.00.0NANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NonoperatingIncomeExpense us-gaap:ConsolidatedEntities,us-gaap:ConsolidationItems srt:SubsidiaryIssuer,srt:ReportableLegalEntitiesNANANA-12.0-12.3-13.4-177.3-29.3-12.2-12.5-985.7-13.0-13.0-12.7-13.4-9.3NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OperatingExpenses █▁4265.73442.7NA2738.72145.43054.1NA3537.13744.73097.8NA3717.53749.83231.5NA3118.3NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OperatingIncomeLoss ▇▄▄▄█▅▃▅▃▁▄▃▃▃▃▄▄▁▃▃▃▃▃▄▃▂▅▄▄▂▂▃▄▂▂▂190.294.692.4100.3235.5130.873.5120.755.718.6113.070.082.160.064.612117.902101.2972.8876.96679.28184.46359.15554.369106.39254.22241.109145.172108.816117.23323.2536.09565.859114.63834.71940.85619.747NANA
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax ██▁0.20.2-3.0NA-0.5-2.7NANA0.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherNonoperatingIncomeExpense 0.2NA0.80.20.3-1.00.4-0.1-0.10.20.10.00.10.0-1.0893.0340.0030.2320.1142.8480.0850.033-1.0790.106-4.8545.3649.8450.1150.894NANANANANANANANANA
us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax ▇▄▂▂▁▃▄▄▅▃▄▅▅▃▄▃▃▃▃▃▃▁▂▄▄▃▄▇▇▆▆██▆███▇4456.03537.12860.92839.02379.63184.83460.23657.63800.43116.43501.73788.03829.03244.23379.53236.33211.22999.63055.83042.7383005.7622490.2622928.23382.5073517.2212962.5153608.94678.7754757.9494164.3344195.04785.744843.44358.04897.24965.9894915.04621.7
us-gaap:SellingGeneralAndAdministrativeExpense ▇▆▅█▄▅▅▄▄▄▃▃▄▄▅▃▃▄▂▃▃▃▃▃▃▃▃▃▂▂▁▆▂▃▁▂48.544.341.153.737.139.238.936.035.134.633.932.635.234.540.04331.53531.34738.24628.1230.72632.3231.50332.28233.01633.24931.45633.02730.10529.69828.07124.20946.13328.44332.23223.59727.824NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:Assets ██▄▄▄▄▄▄▄▃▃▃▃▃▃▃▂▂▂▂▂▂▁▁▁▁▂▁▁▁▁▁3986.13980.62685.72788.22860.72583.42687.22616.72571.32504.42360.82325.62292.82252.52331.0392279.5072223.1862002.7362088.742056.8292083.8462020.5351886.2411766.4931842.0341923.2671934.2571896.351909.8351888.9651881.2421872.009NANA1992.465NANANA
us-gaap:Liabilities ██▄▄▄▄▄▄▃▃▃▃▃▃▃▃▃▂▂▂▂▂▁▁▁▁▁▁▂▂▂▂3228.23200.01901.61892.51942.71836.61884.21837.71755.01706.61553.51596.71606.51547.21592.6371614.4141542.5451329.9681391.6641297.6421325.9341294.9211093.9511043.0531122.7171082.0691075.5521137.811216.3471220.7851224.9061308.541NANA888.014NANANA
us-gaap:LiabilitiesAndStockholdersEquity ██▄▄▄▄▄▄▄▃▃▃▃▃▃▃▂▂▂▂▂▂▁▁▁▁▂▁▁▁▁▁3986.13980.62685.72788.22860.72583.42687.22616.72571.32504.42360.82325.62292.82252.52331.0392279.5072223.1862002.7362088.742056.8292083.8462020.5351886.2411766.4931842.0341923.2671934.2571896.351909.8351888.9651881.2421872.009NANA1992.465NANANA
us-gaap:StockholdersEquity ▁▂▃▇█▁▃▂▄▃▃757.9780.6784.1895.7918.0746.8803.0779.0816.3797.8807.3NANANA738.4NANANA697.0NANANANANANANANANANANANA563.468NANA1104.451NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:AssetsCurrent ▇▇▅▆█▄▆▅▅▄▄▃▃▃▄▄▄▁▃▃▄▂▂▁▃▅▅▅▆▆▆▄764.7793.4625.2743.2840.3602.6710.8664.9656.3612.9570.1541.3536.5518.2614.294575.76565.744396.946515.554528.079571.981490.591435.667421.319529.024648.52665.882663.101699.909686.327682.416616.07NANA821.962NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▃▆▃▆█▄▆▅▄▄▄▂▂▃▄▄▄▁▃▄▅▄▂▂▃▆▇▆▅▇▆▂▁▂▁▂165.0304.1163.6317.5403.6200.3280.3247.7178.6180.4184.575.471.9144.1170.028169.014197.09536.256153.813206.692254.21195.701102.33565.302121.445287.671328.105294.264260.237369.424294.74164.34759.58874.32257.37364.316NANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents ▃▆▃▆█▄▆▅▄▄▄▂▂▃▄▄▄▁▃165.0304.1163.6317.5403.6200.3280.3247.7178.6180.4184.575.471.9145.2170.0169.0197.136.3153.8NANANA102.3NANANANANANANANANANANANANANANA
us-gaap:AccountsReceivableNetCurrent █▄▃▂▃▁▃▃▇▆▂▆▆▅▆▄▃▃▄▂▂▁▁▂▃▃▂▅█▅▄▆260.2182.1168.8142.7161.3136.3172.9164.3236.3227.3138.8231.2230.5198.0225.268192.443164.372156.453183.519139.692148.211128.12136.253144.208174.149165.257140.091206.956257.163212.34193.181225.736NANA529.023NANANA
us-gaap:InventoryNet █▇▇▇▆▆▅▆▅▄▅▅▅▃▄▅▄▃▃▃▃▃▃▃▅▄▄▃▃▁▄▂311.7283.0279.1268.1257.7243.5227.6233.8211.3178.7221.5215.1205.1148.5182.477200.765179.044166.476153.351152.542152.494155.45155.906165.092207.558184.972182.914145.818166.03588.9179.055114.894NANA217.394NANANA
us-gaap:InventoryLIFOReserve ▆▅▂▂▂▁▄▄▄▅▃▅▅▅▄▄▃▄▄▃▃▃▃▃▅▄▄▇███222.4192.2101.386.380.142.6160.8162.9166.3181.3115.5208.6201.0181.5167.201174.806128.515143.363153.319131.505140.417107.471102.849130.346195.891164.493144.283284.267318.135313.583307.706NANANANANANANA
us-gaap:InventoryRawMaterialsAndSupplies NANA5.46.96.36.56.26.68.211.510.45.94.513.512.9624.1624.6083.8193.1184.6033.2823.1344.0563.8475.2765.3825.3995.1425.0344.6624.7257.154NANA5.679NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment NANANA1151.31143.61107.31079.21074.81040.41013.3974.2944.4927.4905.7874.675846.212818.409792.912780.426756.305732.114714.15724.486707.119760.916746.804730.202711.125693.012673.764655.36656.604NANA590.568NANANA
us-gaap:PropertyPlantAndEquipmentNet NANANA1854.01834.31808.31807.31789.31758.91738.11748.21741.91714.61691.11679.471659.411613.2341565.161532.6551488.2611430.8161385.3371369.3181332.1821299.2061263.741253.1241215.7871204.0441194.3731190.7231248.632NANA1169.96NANANA
 us-gaap:PropertyPlantAndEquipmentNet us-gaap:ConsolidatedEntities,us-gaap:ConsolidationItems srt:GuarantorSubsidiaries,srt:ReportableLegalEntitiesNANANA11.211.09.08.26.75.54.02.32.0NANA1.2NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PropertyPlantAndEquipmentNet us-gaap:ConsolidatedEntities,us-gaap:ConsolidationItems srt:SubsidiaryIssuer,srt:ReportableLegalEntitiesNANANA1842.81823.31799.31799.11782.61753.41734.11745.91739.9NANA1678.3NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures us-gaap:ConsolidatedEntities,us-gaap:ConsolidationItems srt:ParentCompany,srt:ReportableLegalEntitiesNANANA2916.92850.02681.12591.82544.22475.02442.32437.02359.5NANA2223.4NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures us-gaap:ConsolidatedEntities,us-gaap:ConsolidationItems srt:SubsidiaryIssuer,srt:ReportableLegalEntitiesNANANA143.4143.6143.8143.9144.0144.1144.2144.4144.8NANA144.9NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures us-gaap:ConsolidationItems srt:ConsolidationEliminationsNANANA-3060.3-2993.6-2824.9-2735.7-2688.2-2619.1-2586.5-2581.4-2504.3NANA-2368.3NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:Goodwill ▁█329.1336.4NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IntangibleAssetsNetExcludingGoodwill ██▁141.2141.334.6NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:FiniteLivedIntangibleAssetsNet ▁▁█25.325.434.6NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OperatingLeaseRightOfUseAsset ██▂▂▂▁▁▁▁▁396.1395.6147.7146.3142.1128.9124.2118.1111.5110.4NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent ▁▁███▇▇▇▇▆▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁12.912.5192.9191.0186.1172.5169.1162.5156.1153.442.542.441.742.137.27544.33744.20840.6340.53140.48927.19613.67512.68512.99213.80411.00715.25117.462NANA8.103NANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent █▇▄▃▃▂▃▄▅▄▃▅▅▄▄▃▂▂▄▁▂▁▂▁▃▂▂▃▅▄▃▃670.2638.4471.1442.8461.7400.6466.2495.6557.5512.0456.9519.6529.1475.0513.464454.074394.303387.641473.37376.897401.141356.871390.341364.706456.763411.903386.999458.614524.95487.77433.228459.246NANA705.487NANANA
us-gaap:AccruedIncomeTaxesCurrent ▃▅▃▄█▂▁12.023.48.819.440.86.10.0NANANANANANA1.20.012.2160.00.00.594NA24.18412.8870.06.6656.0245.91225.637.02750.46431.94272.14635.486NANA15.605NANANA
us-gaap:LiabilitiesCurrent ██▄▄▅▃▄▄▅▄▃▄▅▃▄▃▁▂▄▂▂▁▁▁▃▂▁▄▅▄▄▄696.4675.0531.1513.4553.7457.9505.0516.9578.8533.3478.1540.8550.2496.1533.351486.009409.261454.851514.56417.368455.697400.053392.292396.237472.027428.418413.08505.094584.074544.001526.517506.398NANA733.909NANANA
us-gaap:OperatingLeaseLiabilityCurrent ██▂▂▁▁▁16.917.07.87.77.56.96.8NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAccruedLiabilitiesCurrent NANA31.5NANANA49.2NANANA43.9NANANA37.718NANANA38.459NANANA64.521NANANA65.186NANANA48.702NANANA20.298NANANA
us-gaap:TaxesPayableCurrent NANA84.1NANANA86.2NANANA89.7NANANA89.454NANANA76.552NANANA75.704NANANA71.273NANANA55.882NANANA65.349NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:DebtAndCapitalLeaseObligations ██▄▄▄▄▄▄▃▃▃▃▃▃▃▃▃▂▂▂▂▂▁▁▁1808.61810.01002.41014.41026.51038.61038.1987.7854.9859.3863.3867.8871.9876.3880.751884.694884.044687.416670.218679.382678.638688.061490.382489.911489.403NA488.25NANANANANANANANANANANA
us-gaap:LongTermDebtAndCapitalLeaseObligations ██▃▄▄▄▄▄▃▃▃▃▃▃▃▃▃▂▂▂▂▂▁▁▁▁▁1794.41796.8951.2963.2975.3987.4999.3966.4833.6838.0842.1846.6850.8856.4860.864864.975869.086620.206629.622638.911648.266657.766490.16489.729489.281488.811488.25NANANANANANANANANANANA
us-gaap:DeferredIncomeTaxLiabilitiesNet ██▄▄▄▄▄▃▃▂▂▁▁289.5281.4218.4217.5225.2221.8216.7199.0194.9189.8192.2168.1165.7NA154.2NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OperatingLeaseLiabilityNoncurrent ██▂▂▁▁▁383.9382.3142.5140.7136.3123.4118.5NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo ██▁▁40.740.015.915.6NANA14.3NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree ██▁▁40.439.715.415.1NANA13.5NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour ██▁▁39.939.314.914.6NANA13.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA14.2NANANA12.2NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA166.9NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:StockholdersEquity ▁▂▃▇█▁▃▂▄▃▃757.9780.6784.1895.7918.0746.8803.0779.0816.3797.8807.3NANANA738.4NANANA697.0NANANANANANANANANANANANA563.468NANA1104.451NANANA
us-gaap:CommonStockValue ██████████████▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁0.50.50.50.50.50.50.50.50.50.50.50.50.50.50.4680.4680.4680.4680.4680.4680.4680.4680.4680.4680.4680.4680.4680.4680.4680.4680.467NANANANANANANA
us-gaap:AdditionalPaidInCapital ▂▁▃▂▃▂▄▃▃▂▄▄▅▅▆▆▅▅▇▆▇▆██▇▇█▇▇▆▆528.4525.6533.3530.0533.0530.2538.7536.4534.4531.9539.0539.4546.1544.8549.91547.949545.887544.777555.338550.376551.977549.551558.182556.085553.677551.374557.871554.895552.6550.503548.293NANANANANANANA
us-gaap:RetainedEarningsAccumulatedDeficit ██▇▇▇▆▆▆▅▅▅▅▅▅▄▄▄▃▃▃▃▃▃▂▂▂▂▂▁▁▁1913.61791.51743.11689.11622.21453.31362.91315.31246.11213.41208.11130.61085.61033.8994.535869.695801.808746.245749.271705.454659.963613.653527.779461.093400.562374.371351.439253.092190.441117.209107.576NANANANANANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▃▃▂▂▁▂█-1.5-1.7-1.9-2.1-2.5-2.00.7NANANA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:ConsolidatedEntities,us-gaap:ConsolidationItems srt:SubsidiaryIssuer,srt:ReportableLegalEntitiesNANANA-2.1-2.5-2.00.7NANANA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:TreasuryStockValue █▇▇▆▆▆▅▅▅▅▅▅▅▅▄▄▄▃▃▃▃▃▂▂▂▁▁▁▁1683.11535.31490.91321.81235.21235.21099.81073.2964.7948.0940.3941.6945.9873.8806.511753.019667.522618.722608.001497.111454.496438.058294.139294.206235.3985.01551.07349.91550.021NANANANANANANANANA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue █▁3.83.6NA5.42.82.8NA2.62.82.62.32.22.42.22.7742.1971.3161.2082.3692.1653.1911.5892.2042.4582.451.9033.0512.5352.3272.5222.454NANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▄▇▄▄█▅▃▅▄▃▆▄▃▄▅▅▄▁▅▃▄▄▄▄▃▃▄▄▃▅▂▆▄▄101.0229.895.985.9268.2113.761.7126.776.848.1157.375.158.9107.4117.325125.986.3-45.9127.61241.22691.68876.91466.99671.02643.39834.41889.13277.88725.726112.837-13.258185.20493.31391.439NANANANA
us-gaap:NetCashProvidedByUsedInInvestingActivities ▆▁▆▆▆▆▆▆▆▇▇▆▆▆▆▆▆▆▆▇▇▇▇▆▆▇▆▇▇▇█▇▇▆-82.0-696.3-61.0-64.1-52.0-47.2-51.1-66.3-56.2-29.5-41.4-61.7-53.7-52.3-56.707-67.8-72.2-65.4-60.627-42.247-5.758-26.222-31.004-67.064-59.071-32.495-54.133-42.876-29.315-23.091129.895-21.182-28.05-67.771NANANANA
 us-gaap:NetCashProvidedByUsedInInvestingActivities us-gaap:ConsolidatedEntities,us-gaap:ConsolidationItems srt:GuarantorSubsidiaries,srt:ReportableLegalEntitiesNANANA-0.3-2.1-0.8-1.6-1.2-1.5-1.7-0.40.0-0.4-0.4-0.4NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NetCashProvidedByUsedInInvestingActivities us-gaap:ConsolidatedEntities,us-gaap:ConsolidationItems srt:SubsidiaryIssuer,srt:ReportableLegalEntitiesNANANA-63.8-49.9-46.4-49.5-65.1-54.7-27.8-41.0-61.7-53.3-51.9-56.3NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▁█▁▂▃▁▃▃▂▂▃▃▂▂▂▂▄▃-158.1607.0-188.8-107.9-12.9-146.522.08.7-22.4-22.7-6.8-9.9-78.5-79.9-59.603-86.2146.7-6.2NANANANANANANANA-1.158-0.984-105.598-15.063-84.39538.889-79.997-6.719NANANANA
 us-gaap:NetCashProvidedByUsedInFinancingActivities us-gaap:ConsolidatedEntities,us-gaap:ConsolidationItems srt:GuarantorSubsidiaries,srt:ReportableLegalEntitiesNANANA1.81.31.31.71.51.81.90.70.30.60.60.5NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NetCashProvidedByUsedInFinancingActivities us-gaap:ConsolidatedEntities,us-gaap:ConsolidationItems srt:SubsidiaryIssuer,srt:ReportableLegalEntitiesNANANA-109.7-14.2-147.8186.17.2-24.2-24.6966.2-10.2-79.1-80.5-60.1NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▁▇▁▂█▂▅▅▄▄▆▄▃▄-139.1140.5-153.9-86.1203.3-80.032.669.1-1.8-4.1109.13.5-73.3-24.8NANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect us-gaap:ConsolidatedEntities,us-gaap:ConsolidationItems srt:GuarantorSubsidiaries,srt:ReportableLegalEntitiesNANANA1.1-0.70.40.10.20.10.0-0.20.30.10.2NANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect us-gaap:ConsolidatedEntities,us-gaap:ConsolidationItems srt:SubsidiaryIssuer,srt:ReportableLegalEntitiesNANANA-87.2204.0-80.432.568.9-1.9-4.1109.33.2-73.4-25.0NANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:IncreaseDecreaseInAccountsReceivable █▆▆▅▆▅▆▄▆█▃▆▆▅▆▆▆▅▇▅▆▅▅▅▆▆▄▄▇▆▅▁▆▂▅78.15.326.1-18.624.9-37.38.0-72.19.088.5-92.60.732.5-27.232.82328.0427.907-27.09943.8-8.51820.068-8.147-8.599-28.3167.51426.544-72.946-50.20944.82419.16-28.393-163.5190.875-140.642-9.157NANANA
us-gaap:IncreaseDecreaseInInventories ▆▄▅▅▅▅▄▆▆▃▅▅▇▃▃▆▅▅▅▅▅▅▄▄▆▅▆▄█▁█▁▆▂▆28.8-20.511.110.313.616.7-6.222.532.5-42.76.410.056.5-33.9-31.08921.72112.56813.1441.2210.048-2.956-0.456-9.203-16.58922.6122.05937.095-20.21877.136-90.15581.968-81.04136.337-57.79624.198NANANA
us-gaap:NetCashProvidedByUsedInOperatingActivities ▄▇▄▄█▅▃▅▄▃▆▄▃▄▅▅▄▁▅▃▄▄▄▄▃▃▄▄▃▅▂▆▄▄101.0229.895.985.9268.2113.761.7126.776.848.1157.375.158.9107.4117.325125.986.3-45.9127.61241.22691.68876.91466.99671.02643.39834.41889.13277.88725.726112.837-13.258185.20493.31391.439NANANANA
us-gaap:NetIncomeLoss ▆▄▄▄█▅▃▄▃▂▄▃▃▃▆▄▄▁▃▃▃▅▄▄▂▂▅▄▄▂▅▃▄▂▂▂▄▁128.855.361.066.9168.989.347.669.232.75.377.545.051.839.3124.967.88755.563-3.02643.845.49146.3185.87466.760.53126.19122.93298.362.65173.2329.63393.641.72977.622.119.111.00166.2-12.7
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▆▁▆▆▆▆▆▆▆▇▇▆▆▆▆▆▆▆▆▇▇▇▇▆▆▇▆▇▇▇█▇▇▆-82.0-696.3-61.0-64.1-52.0-47.2-51.1-66.3-56.2-29.5-41.4-61.7-53.7-52.3-56.707-67.8-72.2-65.4-60.627-42.247-5.758-26.222-31.004-67.064-59.071-32.495-54.133-42.876-29.315-23.091129.895-21.182-28.05-67.771NANANANA
 us-gaap:NetCashProvidedByUsedInInvestingActivities us-gaap:ConsolidatedEntities,us-gaap:ConsolidationItems srt:GuarantorSubsidiaries,srt:ReportableLegalEntitiesNANANA-0.3-2.1-0.8-1.6-1.2-1.5-1.7-0.40.0-0.4-0.4-0.4NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NetCashProvidedByUsedInInvestingActivities us-gaap:ConsolidatedEntities,us-gaap:ConsolidationItems srt:SubsidiaryIssuer,srt:ReportableLegalEntitiesNANANA-63.8-49.9-46.4-49.5-65.1-54.7-27.8-41.0-61.7-53.3-51.9-56.3NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PaymentsToAcquireProductiveAssets █▅▅▆▅▄▄▆▅▂▃▅▅▄▅▆▆▆▆█▆▄▅▅▅▂▅▂▂▁▃▁▁▆▂83.253.661.363.759.146.651.167.156.130.541.360.753.648.756.72567.38268.25365.89763.23382.34269.28647.28353.70460.55458.75232.21554.20131.63329.31523.73942.46526.96227.63667.47329.027NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▁█▁▂▃▁▃▃▂▂▃▃▂▂▂▂▄▃-158.1607.0-188.8-107.9-12.9-146.522.08.7-22.4-22.7-6.8-9.9-78.5-79.9-59.603-86.2146.7-6.2NANANANANANANANA-1.158-0.984-105.598-15.063-84.39538.889-79.997-6.719NANANANA
 us-gaap:NetCashProvidedByUsedInFinancingActivities us-gaap:ConsolidatedEntities,us-gaap:ConsolidationItems srt:GuarantorSubsidiaries,srt:ReportableLegalEntitiesNANANA1.81.31.31.71.51.81.90.70.30.60.60.5NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NetCashProvidedByUsedInFinancingActivities us-gaap:ConsolidatedEntities,us-gaap:ConsolidationItems srt:SubsidiaryIssuer,srt:ReportableLegalEntitiesNANANA-109.7-14.2-147.8186.17.2-24.2-24.6966.2-10.2-79.1-80.5-60.1NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ProceedsFromIssuanceOfLongTermDebt ▁█0.0892.8NANA0.00.050.1NANA0.00.00.00.00.00.00.0296.2542.50.00.00.0200.00.00.0NANANANANANA0.0NANANANANANANA
us-gaap:RepaymentsOfLongTermDebt ▁█2.5214.4NA12.912.90.3NA562.45.35.4NA5.35.35.3NA0.23399.72326.178NA0.11610.0920.073NANANA0.0150.00.055.015.081.1360.010.0120.0120.011NANANA
us-gaap:PaymentsOfDividends ▁█6.76.8NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PaymentsForRepurchaseOfCommonStock ▇▃█▅▁▇▂▆▂▂▁▁▄▄▃▅▃▂▆▃▂▇▁▃▇▃▁▁148.350.0169.189.90.0140.626.7109.016.813.30.00.072.771.753.98385.67248.92617.411110.94445.22317.095150.010.058.861150.39939.4351.3270.0NANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value500000.0500000.0500000.0500000.0500000.0500000.0500000.0500000.0500000.0500000.0500000.0500000.0500000.0500000.0468000.0468000.0468000.0468000.0468000.0468000.0468000.0468000.0468000.0468000.0468000.0468000.0468000.0468000.0468000.0468000.0467000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-30
Value262729293031323232323435363639394142444646464646464646
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-30
Value262729293031323232323335363638394042444545464646464646
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


Antidilutive
Period End2021-06-302021-03-312020-06-302020-03-312013-09-30
Value106230.0101790.096600.0146490.059250.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:EmployeeStockOption


Antidilutive
Period End2021-06-302021-03-312020-06-302020-03-31
Value84600.081300.075600.075600.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount79.679.978.351.6

us-gaap:RestrictedStockUnitsRSU


Antidilutive
Period End2021-06-302021-03-312020-06-302020-03-31
Value21628.020491.021000.070887.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount20.420.121.748.4

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value4.852.042.252.35.792.951.562.21.020.162.41.41.591.173.621.921.52-0.081.161.171.182.11.61.420.590.52.151.371.580.212.00.891.660.470.410.241.42-0.27
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value4.792.012.22.275.732.921.542.181.010.162.381.381.581.163.581.91.51-0.081.141.161.172.081.581.410.590.52.131.361.570.212.00.891.660.470.410.241.42-0.27
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:AllocatedShareBasedCompensationExpense


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value3.83.63.35.42.82.82.52.62.82.62.42.22.42.22.7952.1761.3161.2082.3692.1453.21.62.2152.42.4971.9033.0352.5512.3272.5228.931-3.848.416
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.00.10.10.10.10.00.00.10.10.10.10.10.10.10.10.10.10.00.10.2-0.10.2

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value129556167168864869325.3
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.0

us-gaap:ComprehensiveIncomeNetOfTax us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Comprehensive
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-0.2-0.2-0.1-0.1-0.1-0.1-0.2
Percentage of ComprehensiveIncomeNetOfTax-0.3-0.1-0.1-0.2-0.1-0.3-3.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:GuarantorSubsidiaries srt:ReportableLegalEntities0.00.00.00.00.00.00.0

srt:ParentCompany, srt:ReportableLegalEntities


Comprehensive
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value661688921369325.3
Percentage of ComprehensiveIncomeNetOfTax99.4100.3103.1441.8100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:ParentCompany srt:ReportableLegalEntities0.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Comprehensive
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value6716886-117.569325.3
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0-243.3100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:SubsidiaryIssuer srt:ReportableLegalEntities0.00.00.00.00.00.00.0

us-gaap:ComprehensiveIncomeNetOfTax us-gaap:ConsolidationItems

srt:ConsolidationEliminations


Comprehensive
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-66.7-168.7-89.2-47.5-69.1-32.6-5.1
Percentage of ComprehensiveIncomeNetOfTax-99.1-100.2-103.0-98.3-99.9-99.7-96.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:ConsolidationEliminations0.00.00.00.00.00.00.0

Cost Of Goods And Services Sold

us-gaap:CostOfGoodsAndServicesSold us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems, us-gaap:ProductOrService

us-gaap:CostOfGoodsAndServicesSold

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities, us-gaap:ProductAndServiceOther


Cost
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value0.10.00.00.00.00.00.00.00.0
Percentage of CostOfGoodsAndServicesSold100.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:GuarantorSubsidiaries srt:ReportableLegalEntities us-gaap:ProductAndServiceOther0.00.00.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities, musa:Merchandise


Cost
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value638648580568569553508513519513476
Percentage of CostOfGoodsAndServicesSold638700.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.013.414.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:SubsidiaryIssuer srt:ReportableLegalEntities musa:Merchandise0.00.00.00.00.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities, us-gaap:Product


Cost
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1862128722592602274929732381266629913032256126112419
Percentage of CostOfGoodsAndServicesSold1862200.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.079.278.977.374.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:SubsidiaryIssuer srt:ReportableLegalEntities us-gaap:Product0.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities, us-gaap:ProductAndServiceOther


Cost
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value142131135143145132139134127
Percentage of CostOfGoodsAndServicesSold142800.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.03.53.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:SubsidiaryIssuer srt:ReportableLegalEntities us-gaap:ProductAndServiceOther0.00.00.00.00.00.00.00.00.0

us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService

musa:Merchandise


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
Value778684628638648580568569553508513519513476498507
Percentage of CostOfGoodsAndServicesSold0.00.00.0638700.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.013.414.714.815.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax musa:Merchandise0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

musa:ProductPetroleum


Cost
Period End2021-06-302021-03-312020-06-302020-03-31
Value3175247612872259
Percentage of CostOfGoodsAndServicesSold0.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax musa:ProductPetroleum0.00.00.00.0

us-gaap:Product


Cost
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value19151862128722592602274929732381266629913032256126112419
Percentage of CostOfGoodsAndServicesSold0.01862200.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.079.278.977.374.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Product0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProductAndServiceOther


Cost
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value208177142131135143145132139134127130
Percentage of CostOfGoodsAndServicesSold0.00.0142900.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.03.53.94.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductAndServiceOther0.00.00.00.00.00.00.00.00.00.00.00.0

Income Loss From Continuing Operations

us-gaap:IncomeLossFromContinuingOperations

us-gaap:IncomeLossFromContinuingOperations


Income
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value661688969325.34551396755
Percentage of IncomeLossFromContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.01.41.22.11.7

us-gaap:IncomeLossFromContinuingOperations us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Income
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value-0.2-0.2-0.1-0.1-0.1-0.20.00.00.00.0
Percentage of IncomeLossFromContinuingOperations-0.3-0.1-0.1-0.1-0.3-3.80.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:GuarantorSubsidiaries srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Income
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value671698969325.545513967
Percentage of IncomeLossFromContinuingOperations100.3100.1100.1100.1100.3103.8100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.01.41.22.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:SubsidiaryIssuer srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.0

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value170738822311791435.957694710889
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.01.81.53.42.8

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Income
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value-0.3-0.3-0.1-0.1-0.2-0.20.00.00.00.0
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest-0.3-0.1-0.1-0.1-0.5-3.40.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:GuarantorSubsidiaries srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Income
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value8822311791436.1576947108
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.3100.1100.1100.1100.5103.4100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.01.81.53.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:SubsidiaryIssuer srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.0

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value4118192154281422100.62312178.0-73.6314034-6.81123262753153414174837345.611254414178.8
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.00.50.2-2.21.31.1-0.20.80.90.92.10.51.00.40.61.30.80.70.10.30.50.90.30.40.2

us-gaap:IncomeTaxExpenseBenefit us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Income
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-0.1-0.10.0-0.10.0-0.10.0-0.10.00.00.00.00.0
Percentage of IncomeTaxExpenseBenefit-0.5-0.20.0-0.70.0-0.90.0-0.40.00.00.0-0.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:GuarantorSubsidiaries srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Income
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value2154281422100.62312178.0-73.640
Percentage of IncomeTaxExpenseBenefit100.5100.2100.0100.7100.0100.9100.0100.4100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.50.2-2.21.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:SubsidiaryIssuer srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.00.00.00.0

Income Taxes Paid Net

us-gaap:IncomeTaxesPaidNet

us-gaap:IncomeTaxesPaidNet


Income
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value305116-0.5109.75.80.75.42.56.92.62216120.31342-1.236163518
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.20.10.70.50.40.00.41.4-0.00.71.20.6

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value20211212131312151313131313131212119.4989.92410109.3888.4918.3828.3298.3298.4128.612109.0959.5834.7150.0160.1270.0330.066
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.00.30.40.40.40.40.30.30.30.30.40.30.20.20.30.20.20.20.20.20.10.00.00.00.0

us-gaap:InterestExpense us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Interest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value12131312151313131313131212
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.899.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.30.40.40.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:SubsidiaryIssuer srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.00.00.00.0

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value13181013101410209.3169.4169.2159.1150.6161.9172.016
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.00.20.50.30.50.00.60.10.60.10.6

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value128556166168894769325.3774551391246755-3.02643454685666026229862739.63393417722191166-12.7
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.01.41.23.72.11.7-0.11.41.51.53.42.31.80.70.82.71.31.50.22.20.91.60.50.40.21.3-0.3

us-gaap:NetIncomeLoss us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Net
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-0.2-0.2-0.1-0.1-0.1-0.1-0.2-0.40.00.00.00.00.0
Percentage of NetIncomeLoss-0.3-0.1-0.1-0.2-0.1-0.3-3.8-0.50.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:GuarantorSubsidiaries srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:ParentCompany, srt:ReportableLegalEntities


Net
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value661688921369325.3105145513912467
Percentage of NetIncomeLoss100.0100.0100.0448.3100.0100.0100.01356.4100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.01.41.23.72.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:ParentCompany srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Net
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value6616889-118.269325.3-896.245513912467
Percentage of NetIncomeLoss100.0100.0100.0-248.3100.0100.0100.0-1156.4100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.01.41.23.72.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:SubsidiaryIssuer srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems, us-gaap:StatementEquityComponents

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities, us-gaap:RetainedEarnings


Net
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value-0.2-0.2-0.1-0.1-0.1-0.2-0.40.0-0.10.00.0
Percentage of NetIncomeLoss-0.3-0.1-0.1-0.1-0.3-3.8-0.50.0-0.20.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.0-0.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:GuarantorSubsidiaries srt:ReportableLegalEntities us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.0

srt:ParentCompany, srt:ReportableLegalEntities, us-gaap:RetainedEarnings


Net
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value661688969325.31051455139124
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.01356.4100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.01.41.23.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:ParentCompany srt:ReportableLegalEntities us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities, us-gaap:RetainedEarnings


Net
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value661688969325.3-896.2455139124
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0-1156.4100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.01.41.23.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:SubsidiaryIssuer srt:ReportableLegalEntities us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:ConsolidationItems

musa:CorporateAndReconcilingItems


Net
Period End2021-06-302021-03-312020-06-302020-03-31
Value-16.8-25.1-10.7-11.6
Percentage of NetIncomeLoss-13.0-45.4-6.3-13.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax musa:CorporateAndReconcilingItems0.00.00.00.0

srt:ConsolidationEliminations


Net
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-66.7-168.7-89.2-47.5-69.1-32.6-5.1-77.1-45.0-51.8-39.3-124.9-67.9
Percentage of NetIncomeLoss-99.7-99.9-99.9-99.8-99.9-99.7-96.2-99.5-100.0-100.0-100.0-100.0-100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.0-1.4-1.2-3.7-2.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:ConsolidationEliminations0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CorporateNonSegment


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-19.0-14.8-10.7-11.6-12.7-24.8-11.8-10.9-10.6-9.6-9.028-30.28-7.943-8.2-3.6-7.353-7.264
Percentage of NetIncomeLoss-31.1-22.1-6.3-13.0-26.7-35.8-36.1-205.7-13.7-21.3-17.472.8-24.2-11.7-14.8119.0-16.8-16.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.0-0.20.9-0.9-0.2-0.3-0.1-0.2-0.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.0-9000.07150.00.00.00.0-1800.00.00.0

us-gaap:NetIncomeLoss us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, musa:MarketingSegment


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302013-09-302012-09-30
Value145808081179100609444168854601015575630.651524020
Percentage of NetIncomeLoss113.0145.4131.1122.1106.3113.0126.7135.8136.1305.7113.7121.3117.427.2124.2111.7114.6-19.8116.8116.098.1186.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.01.60.34.62.32.00.01.71.70.90.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments musa:MarketingSegment0.00.00.00.00.00.00.00.00.00.00.00.01.60.30.00.02.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:ConsolidationItems, us-gaap:StatementEquityComponents

srt:ConsolidationEliminations, us-gaap:RetainedEarnings


Net
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value-66.7-168.7-89.2-69.1-32.6-5.1-77.1-45.0-51.7-39.3-124.9
Percentage of NetIncomeLoss-99.7-99.9-99.9-99.9-99.7-96.2-99.5-100.0-99.8-100.0-100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.0-1.4-1.2-3.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:ConsolidationEliminations us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Net
Period End2020-09-302020-06-30
Value0.4-0.5
Percentage of NetIncomeLoss0.6-0.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedOtherComprehensiveIncome0.00.0

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value12855661688969325.3774551391246755-3.02643454685666026229862739.63393
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.01.41.23.72.11.7-0.11.41.51.53.42.31.80.70.82.71.31.50.22.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Nonoperating Income Expense

us-gaap:NonoperatingIncomeExpense

us-gaap:NonoperatingIncomeExpense


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-20.2-21.3-11.7-12.2-12.5-13.5-11.6-29.4-12.4-12.7-12.5-13.0-13.0-12.7-13.403-9.226-11.323-12.717-10.134-7.525-10.36580-9.868-12.328-13.191-1.0881.854-8.484-9.62-8.798-9.4621.6610.4450.179-1.0270.054
Percentage of NonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.0-0.3-0.4-0.4-0.3-0.4-0.4-0.3-0.2-0.33.2-0.3-0.4-0.4-0.00.1-0.2-0.2-0.2-0.20.00.00.0-0.00.0

us-gaap:NonoperatingIncomeExpense us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Nonoperating
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-0.2-0.2-0.1-0.1-0.1-0.2-0.2-0.50.00.00.00.00.0
Percentage of NonoperatingIncomeExpense1.61.60.70.90.31.61.64.0-0.0-0.0-0.0-0.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:GuarantorSubsidiaries srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Nonoperating
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-12.0-12.3-13.4-177.3-29.3-12.2-12.5-985.7-13.0-13.0-12.7-13.4-9.3
Percentage of NonoperatingIncomeExpense98.498.499.31528.499.798.498.47885.6100.0100.0100.0100.0100.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.0-0.3-0.4-0.4-0.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:SubsidiaryIssuer srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.00.00.00.0

Operating Expenses

us-gaap:OperatingExpenses

us-gaap:OperatingExpenses


Operating
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value426534422738214530543537374430973717374932313118
Percentage of OperatingExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.097.999.696.4

us-gaap:OperatingExpenses us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Operating
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value0.20.10.00.00.00.00.00.00.00.0
Percentage of OperatingExpenses0.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:GuarantorSubsidiaries srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Operating
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value2738214530543537374430973717374932313118
Percentage of OperatingExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.097.999.696.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:SubsidiaryIssuer srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.0

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value1909492100235130731205518113708260641171012.8876798459541065441145108117233665114344019
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.02.11.81.93.63.20.12.52.62.82.41.93.11.51.44.02.32.50.60.91.42.40.80.80.4

us-gaap:OperatingIncomeLoss us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Operating
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-0.1-0.10.0-0.10.00.00.00.00.00.00.00.00.0
Percentage of OperatingIncomeLoss-0.1-0.00.0-0.10.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:GuarantorSubsidiaries srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Operating
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value10023513073120551811370826064118
Percentage of OperatingIncomeLoss100.1100.0100.0100.1100.0100.0100.0100.0100.0100.0100.0100.1100.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.02.11.81.93.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:SubsidiaryIssuer srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax


Other
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-06-302019-03-31
Value200000.0200000.0-3000000.0-500000.0-2700000.000
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax100.0100.0100.0100.0100.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-12-312020-06-302020-03-31
Value200000.0200000.0-3000000.0-500000.0-2700000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.0

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


Other
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value0.20.80.20.3-1.00.4-0.1-0.10.20.10.00.10.0-1.0893.0340.0030.2320.1142.8480.0850.033-1.0790.106-4.8545.3649.8450.1150.894
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.00.0-0.00.10.00.00.00.10.00.0-0.00.0-0.10.20.30.00.0

us-gaap:OtherNonoperatingIncomeExpense us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Other
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-0.2-0.2-0.1-0.1-0.1-0.2-0.2-0.50.00.00.00.00.0
Percentage of OtherNonoperatingIncomeExpense-100.0-66.710.0-25.0100.0200.0-100.0-500.00.00.00.0-0.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:GuarantorSubsidiaries srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Other
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.40.5-0.9-165.30.00.10.4-973.10.00.10.0-1.03.0
Percentage of OtherNonoperatingIncomeExpense200.0166.790.0-41325.0-0.0-100.0200.0-973100.00.0100.00.091.898.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.0-0.00.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:SubsidiaryIssuer srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.00.00.00.0

Revenue From Contract With Customer Including Assessed Tax

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value44563537286028392379318434603657380031163501378838293244337932363211299930553042300524902928338235172962360846784757416441954785484343584897496549154621
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Revenue
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.10.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:GuarantorSubsidiaries srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Revenue
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value2838237931843460365738003116350137883829324433793236
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:SubsidiaryIssuer srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems, us-gaap:ProductOrService

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities, us-gaap:ProductAndServiceOther


Revenue
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.10.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:GuarantorSubsidiaries srt:ReportableLegalEntities us-gaap:ProductAndServiceOther0.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities, musa:Merchandise


Revenue
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value756767687674681658606615623616567595605
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax26.732.221.619.518.617.319.517.616.516.117.517.618.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.016.117.517.618.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:SubsidiaryIssuer srt:ReportableLegalEntities musa:Merchandise0.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities, us-gaap:Product


Revenue
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value2056158824802778296531292499287531513193263727372580
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax72.466.877.980.381.182.480.282.183.283.481.381.079.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.083.481.381.079.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:SubsidiaryIssuer srt:ReportableLegalEntities us-gaap:Product0.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities, us-gaap:ProductAndServiceOther


Revenue
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value2623177.4111110101219384749
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.91.00.50.20.30.30.30.30.30.51.21.41.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.51.21.41.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:SubsidiaryIssuer srt:ReportableLegalEntities us-gaap:ProductAndServiceOther0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ConsolidationItems

musa:CorporateAndReconcilingItems


Revenue
Period End2021-06-302020-06-302020-03-31
Value0.10.00.1
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax musa:CorporateAndReconcilingItems0.00.00.0

us-gaap:CorporateNonSegment


Revenue
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-0.10.00.10.20.00.00.10.10.00.10.40.20.00.00.20.0730.011
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.0100.0100.00.00.00.0100.00.00.0

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ConsolidationItems, us-gaap:ProductOrService

musa:CorporateAndReconcilingItems, musa:RevenueOther


Revenue
Period End2021-06-302020-06-302020-03-31
Value0.10.00.1
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax musa:CorporateAndReconcilingItems musa:RevenueOther0.00.00.0

us-gaap:CorporateNonSegment, musa:RevenueOther


Revenue
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value-0.10.00.10.00.00.10.00.10.40.00.00.2
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-0.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment musa:RevenueOther0.00.00.00.00.00.00.0100.0100.00.00.0100.0

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

us-gaap:OperatingSegments, musa:Merchandise, musa:MarketingSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-30
Value963833743756767687674681658606615623616567605
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax21.623.626.026.732.221.619.518.617.319.517.616.516.117.518.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.016.117.518.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments musa:Merchandise musa:MarketingSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, musa:ProductPetroleum, musa:MarketingSegment


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value3404263515882480
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax76.474.566.877.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments musa:ProductPetroleum musa:MarketingSegment0.00.00.00.0

us-gaap:OperatingSegments, musa:ProductSalesPetroleum, musa:MarketingSegment


Revenue
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value208320561588248027782965312924992875315131932637258025672402
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax72.872.466.877.980.381.182.480.282.183.283.481.379.780.080.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.083.481.379.780.080.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments musa:ProductSalesPetroleum musa:MarketingSegment0.00.00.00.00.00.00.00.00.00.0100.0100.00.0100.0100.0

us-gaap:OperatingSegments, musa:ProductSalesPetroleumRetail, musa:MarketingSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value30622384188518671444224624662660281822382548277028002339228122682133
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax68.767.465.965.860.770.571.372.774.271.872.873.173.172.170.570.671.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.073.172.170.570.671.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments musa:ProductSalesPetroleumRetail musa:MarketingSegment0.00.00.00.00.00.00.00.00.00.00.00.0100.0100.00.0100.0100.0

us-gaap:OperatingSegments, musa:ProductSalesPetroleumWholesale, musa:MarketingSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value342251197188144234312304311261327381392297299299268
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax7.77.16.96.66.17.39.08.38.28.49.310.110.39.29.29.38.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.010.39.29.29.38.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments musa:ProductSalesPetroleumWholesale musa:MarketingSegment0.00.00.00.00.00.00.00.00.00.00.00.0100.0100.00.0100.0100.0

us-gaap:OperatingSegments, musa:RenewableIdentificationNumbers, musa:MarketingSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value8666322522156.28.6109.17.9111837483629
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax1.91.91.10.90.90.50.20.20.30.30.20.30.51.21.51.11.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.00.51.21.51.11.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments musa:RenewableIdentificationNumbers musa:MarketingSegment0.00.00.00.00.00.00.00.00.00.00.00.0100.0100.00.0100.0100.0

us-gaap:OperatingSegments, musa:RevenueOther, musa:MarketingSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1.61.41.21.11.01.51.02.41.01.22.61.20.81.11.01.10.92.4
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.00.00.00.00.00.00.00.10.00.00.10.00.00.00.00.00.00.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments musa:RevenueOther musa:MarketingSegment0.00.00.00.00.00.00.00.00.00.00.00.0100.0100.00.00.0100.0100.0

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, musa:MarketingSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-30
Value44553537286028392379318434603657380031163501378838283243337932363211299930553042346729204622469341154622475942924788
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.098.698.698.898.798.896.698.398.596.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.098.698.698.898.798.896.698.398.596.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments musa:MarketingSegment0.00.00.00.00.00.00.00.00.00.00.00.0100.0100.00.00.0100.0100.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService

musa:Merchandise


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value963833743756767687674681658606615623616567595605
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax21.623.626.026.732.221.619.518.617.319.517.616.516.117.517.618.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.016.117.517.618.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax musa:Merchandise0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

musa:ProductPetroleum


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value3404263515882480
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax76.474.566.877.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax musa:ProductPetroleum0.00.00.00.0

musa:ProductSalesPetroleum


Revenue
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value205615882480296531292499315131932637258025672402
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax72.466.877.981.182.480.283.283.481.379.780.080.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.083.481.379.780.080.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax musa:ProductSalesPetroleum0.00.00.00.00.00.00.0100.0100.00.0100.0100.0

musa:ProductSalesPetroleumRetail


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value30622384186714442246266028182238277028002339228122682133
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax68.767.465.860.770.572.774.271.873.173.172.170.570.671.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.073.172.170.570.671.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax musa:ProductSalesPetroleumRetail0.00.00.00.00.00.00.00.00.0100.0100.00.0100.0100.0

musa:ProductSalesPetroleumWholesale


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value342251188144234304311261381392297299299268
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax7.77.16.66.17.38.38.28.410.110.39.29.29.38.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.010.39.29.29.38.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax musa:ProductSalesPetroleumWholesale0.00.00.00.00.00.00.00.00.0100.0100.00.0100.0100.0

musa:RenewableIdentificationNumbers


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value86662522158.6109.1111837483629
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax1.91.90.90.90.50.20.30.30.30.51.21.51.11.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.51.21.51.11.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax musa:RenewableIdentificationNumbers0.00.00.00.00.00.00.00.00.0100.0100.00.0100.0100.0

musa:RevenueOther


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value1.71.41.01.01.62.41.01.31.20.91.51.10.92.6
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.00.00.00.00.10.10.00.00.00.00.00.00.00.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.00.00.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax musa:RevenueOther0.00.00.00.00.00.00.00.00.0100.0100.00.0100.0100.0

us-gaap:Product


Revenue
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value20832056158824802778296531292499287531513193263727372580
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax72.872.466.877.980.381.182.480.282.183.283.481.381.079.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.083.481.381.079.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Product0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProductAndServiceOther


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value8868332623177.4111110101219384749
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax2.01.91.20.91.00.50.20.30.30.30.30.30.51.21.41.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.00.51.21.41.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductAndServiceOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Selling General And Administrative Expense

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:SellingGeneralAndAdministrativeExpense


Selling
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value484441533739383635343332353440313138283032313233333133302928244628322327
Percentage of SellingGeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.00.91.11.21.01.01.30.91.01.11.31.11.00.91.10.90.60.60.70.61.00.60.70.50.6

us-gaap:SellingGeneralAndAdministrativeExpense us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Selling
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value53373938363534333235344031
Percentage of SellingGeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.199.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.91.11.21.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:SubsidiaryIssuer srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-312011-12-31
Value3986398026852788286025832687261625712504236023252292225223312279222320022088205620832020188617661842192319341896190918881881187219921784
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Assetsus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value1311109.47.66.44.73.02.71.3
Percentage of Assets0.50.40.40.30.30.20.20.10.10.1
Percentage of Assets0.50.40.40.30.30.20.20.10.10.1
Percentage of Assets srt:GuarantorSubsidiaries srt:ReportableLegalEntities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:ParentCompany, srt:ReportableLegalEntities


Assetsus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value2916285026812591254424752442243723592223
Percentage of Assets104.699.6103.896.497.296.397.5103.2101.595.4
Percentage of Assets104.699.6103.896.497.296.397.5103.2101.595.4
Percentage of Assets srt:ParentCompany srt:ReportableLegalEntities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Assetsus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value2918299227172821275327092643250224672474
Percentage of Assets104.7104.6105.2105.0105.2105.4105.6106.0106.1106.2
Percentage of Assets104.7104.6105.2105.0105.2105.4105.6106.0106.1106.2
Percentage of Assets srt:SubsidiaryIssuer srt:ReportableLegalEntities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidationItems

musa:CorporateAndReconcilingItems


Assetsus-gaap:
Period End2021-06-302021-03-31
Value290413
Percentage of Assets7.310.4
Percentage of Assets7.310.4
Percentage of Assets musa:CorporateAndReconcilingItems100.0100.0

srt:ConsolidationEliminations


Assetsus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value-3060.3-2993.6-2824.9-2735.7-2688.2-2619.1-2586.5-2581.4-2504.3-2368.3
Percentage of Assets-109.8-104.6-109.3-101.8-102.7-101.9-103.3-109.3-107.7-101.6
Percentage of Assets-109.8-104.6-109.3-101.8-102.7-101.9-103.3-109.3-107.7-101.6
Percentage of Assets srt:ConsolidationEliminations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CorporateNonSegment


Assetsus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value267430507301382417353349348235229286307248230
Percentage of Assets10.015.417.711.714.215.913.713.914.810.110.012.713.210.911.0
Percentage of Assets10.015.417.711.714.215.913.713.914.810.110.012.713.210.911.0
Percentage of Assets us-gaap:CorporateNonSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:OperatingSegments, musa:MarketingSegment


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312015-06-302015-03-312014-09-302014-06-302014-03-312013-09-30
Value36953567241823582353228223042199221821552012209020631966202320311858165615851836185118311724
Percentage of Assets92.789.690.084.682.388.385.884.186.386.185.289.990.087.386.889.189.089.982.496.897.097.092.1
Percentage of Assets92.789.690.084.682.388.385.884.186.386.185.289.990.087.386.889.189.089.982.496.897.097.092.1
Percentage of Assets us-gaap:OperatingSegments musa:MarketingSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value32283200190118921942183618841837175517061553159616061547159216141542132913911297132512941093104311221082107511371216122012241308888
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets81.080.470.867.967.971.170.170.268.368.165.868.770.168.768.370.869.466.466.663.163.664.158.059.060.956.355.660.063.764.665.169.944.6

us-gaap:Liabilities us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Liabilitiesus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value-37.5-39.0-40.8-41.7-43.6-44.9-46.7-48.6-49.3-50.8
Percentage of Liabilities-2.0-2.0-2.2-2.2-2.4-2.6-2.7-3.1-3.1-3.2
Percentage of Assets-1.3-1.4-1.6-1.6-1.7-1.7-1.9-2.1-2.1-2.2
Percentage of Assets srt:GuarantorSubsidiaries srt:ReportableLegalEntities-286.3-330.5-400.0-443.6-573.7-701.6-993.6-1620.0-1825.9-3907.7

srt:ParentCompany, srt:ReportableLegalEntities


Liabilitiesus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value230141141-0.11393013-0.1973829
Percentage of Liabilities12.27.37.7-0.07.61.70.8-0.061.052.1
Percentage of Assets8.34.95.5-0.05.31.20.5-0.041.935.6
Percentage of Assets srt:ParentCompany srt:ReportableLegalEntities7.94.95.3-0.05.51.20.5-0.041.337.3

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Liabilitiesus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value18531995189020801896192418941756826968
Percentage of Liabilities97.9102.7102.9110.4103.2109.6111.0113.151.860.8
Percentage of Assets66.569.773.277.472.574.875.674.435.541.5
Percentage of Assets srt:SubsidiaryIssuer srt:ReportableLegalEntities63.566.769.673.768.971.071.770.233.539.1

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value398639802685278828602583268726162571250423602325229222522331227922232002208820562083202018861766184219231934189619091888188118721992
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesAndStockholdersEquity us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Liabilities
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value1311109.47.66.44.73.02.71.3
Percentage of LiabilitiesAndStockholdersEquity0.50.40.40.30.30.20.20.10.10.1
Percentage of Assets0.50.40.40.30.30.20.20.10.10.1
Percentage of Assets srt:GuarantorSubsidiaries srt:ReportableLegalEntities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:ParentCompany, srt:ReportableLegalEntities


Liabilities
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value2916285026812591254424752442243723592223
Percentage of LiabilitiesAndStockholdersEquity104.699.6103.896.497.296.397.5103.2101.595.4
Percentage of Assets104.699.6103.896.497.296.397.5103.2101.595.4
Percentage of Assets srt:ParentCompany srt:ReportableLegalEntities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Liabilities
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value2918299227172821275327092643250224672474
Percentage of LiabilitiesAndStockholdersEquity104.7104.6105.2105.0105.2105.4105.6106.0106.1106.2
Percentage of Assets104.7104.6105.2105.0105.2105.4105.6106.0106.1106.2
Percentage of Assets srt:SubsidiaryIssuer srt:ReportableLegalEntities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesAndStockholdersEquity us-gaap:ConsolidationItems

srt:ConsolidationEliminations


Liabilities
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value-3060.3-2993.6-2824.9-2735.7-2688.2-2619.1-2586.5-2581.4-2504.3-2368.3
Percentage of LiabilitiesAndStockholdersEquity-109.8-104.6-109.3-101.8-102.7-101.9-103.3-109.3-107.7-101.6
Percentage of Assets-109.8-104.6-109.3-101.8-102.7-101.9-103.3-109.3-107.7-101.6
Percentage of Assets srt:ConsolidationEliminations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-312013-09-302012-12-31
Value7577807848959187468037798167978077386975631104
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets19.019.629.232.132.128.929.929.831.731.934.231.733.430.155.4

us-gaap:StockholdersEquity us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Stockholders
Period End2020-09-302020-06-302019-12-312018-12-31
Value50505151
Percentage of StockholdersEquity5.65.56.46.4
Percentage of Assets1.81.81.92.2
Percentage of Assets srt:GuarantorSubsidiaries srt:ReportableLegalEntities386.3430.5543.61720.0

srt:ParentCompany, srt:ReportableLegalEntities


Stockholders
Period End2020-09-302020-06-302019-12-312018-12-31
Value2686270925912437
Percentage of StockholdersEquity299.9295.1322.8301.9
Percentage of Assets96.394.796.5103.2
Percentage of Assets srt:ParentCompany srt:ReportableLegalEntities92.195.1100.0100.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Stockholders
Period End2020-09-302020-06-302019-12-312018-12-31
Value1065997741745
Percentage of StockholdersEquity118.9108.792.392.4
Percentage of Assets38.234.927.631.6
Percentage of Assets srt:SubsidiaryIssuer srt:ReportableLegalEntities36.533.326.329.8

us-gaap:StockholdersEquity us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems, us-gaap:StatementEquityComponents

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities, us-gaap:RetainedEarnings


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value-1.5-1.3-1.1-1.0-0.9-0.8-0.7-0.50.00.0
Percentage of StockholdersEquity-0.2-0.1-0.1-0.1-0.1-0.1-0.1-0.10.00.0
Percentage of Assets-0.1-0.0-0.0-0.0-0.0-0.0-0.0-0.00.00.0
Percentage of Assets srt:GuarantorSubsidiaries srt:ReportableLegalEntities us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.0

srt:ParentCompany, srt:ReportableLegalEntities, us-gaap:AdditionalPaidInCapital


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value1179118311831188118811891189119512051213
Percentage of StockholdersEquity131.7128.9158.4148.0152.6145.7149.1148.0163.3174.0
Percentage of Assets42.341.445.844.245.446.347.550.651.758.1
Percentage of Assets srt:ParentCompany srt:ReportableLegalEntities us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.0

srt:ParentCompany, srt:ReportableLegalEntities, us-gaap:RetainedEarnings


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value28272760259125022289221921872181994749
Percentage of StockholdersEquity315.7300.7347.0311.6293.8271.9274.1270.3134.7107.5
Percentage of Assets101.496.5100.393.187.586.387.392.442.735.9
Percentage of Assets srt:ParentCompany srt:ReportableLegalEntities us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.0

srt:ParentCompany, srt:ReportableLegalEntities, us-gaap:TreasuryStock


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value-1321.8-1235.2-1235.2-1099.8-1073.2-964.7-948.0-940.3-806.5-608.0
Percentage of StockholdersEquity-147.6-134.6-165.4-137.0-137.8-118.2-118.8-116.5-109.2-87.2
Percentage of Assets-47.4-43.2-47.8-40.9-41.0-37.5-37.9-39.8-34.6-29.1
Percentage of Assets srt:ParentCompany srt:ReportableLegalEntities us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities, us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-06-302019-03-312018-12-312017-12-312016-12-31
Value-2.1-2.5-2.00.70.00.00.00.00.0
Percentage of StockholdersEquity-0.2-0.3-0.30.10.00.00.00.00.0
Percentage of Assets-0.1-0.1-0.10.00.00.00.00.00.0
Percentage of Assets srt:SubsidiaryIssuer srt:ReportableLegalEntities us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities, us-gaap:AdditionalPaidInCapital


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value579578576578576573571572573571
Percentage of StockholdersEquity64.763.177.172.174.070.371.671.077.681.9
Percentage of Assets20.820.222.321.522.022.322.824.324.627.3
Percentage of Assets srt:SubsidiaryIssuer srt:ReportableLegalEntities us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities, us-gaap:RetainedEarnings


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value488421252161280210178172933687
Percentage of StockholdersEquity54.545.933.820.236.025.822.321.4126.498.7
Percentage of Assets17.514.79.86.010.78.27.17.340.032.9
Percentage of Assets srt:SubsidiaryIssuer srt:ReportableLegalEntities us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.0

us-gaap:StockholdersEquity us-gaap:ConsolidationItems

srt:ConsolidationEliminations


Stockholders
Period End2020-09-302020-06-302019-12-312018-12-31
Value-3060.3-2993.6-2735.7-2581.4
Percentage of StockholdersEquity-341.7-326.1-340.7-319.8
Percentage of Assets-109.8-104.6-101.8-109.3
Percentage of Assets srt:ConsolidationEliminations100.0100.0100.0100.0

us-gaap:StockholdersEquity us-gaap:ConsolidationItems, us-gaap:StatementEquityComponents

srt:ConsolidationEliminations, us-gaap:RetainedEarnings


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value-1691.8-1625.1-1456.4-1367.2-1319.7-1250.6-1218.0-1212.9-999.8-754.5
Percentage of StockholdersEquity-188.9-177.0-195.0-170.3-169.4-153.2-152.7-150.2-135.4-108.2
Percentage of Assets-60.7-56.8-56.4-50.9-50.4-48.6-48.6-51.4-42.9-36.1
Percentage of Assets srt:ConsolidationEliminations us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-06-302019-03-312018-12-312017-12-312016-12-31
Value-1.5-1.7-1.9-2.1-2.5-2.00.70.00.00.00.00.0
Percentage of StockholdersEquity-0.2-0.2-0.2-0.2-0.3-0.30.10.00.00.00.00.0
Percentage of Assets-0.0-0.0-0.1-0.1-0.1-0.10.00.00.00.00.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-312013-09-30
Value528525533530533530538536534531539549555549
Percentage of StockholdersEquity69.767.368.059.258.171.067.168.965.566.766.874.579.797.4
Percentage of Assets13.313.219.919.018.620.520.020.520.821.222.823.626.629.3
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-312013-09-30
Value0.50.50.50.50.50.50.50.50.50.50.50.50.50.467
Percentage of StockholdersEquity0.10.10.10.10.10.10.10.10.10.10.10.10.10.1
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-312013-09-30
Value1913179117431689162214531362131512461213120899474913
Percentage of StockholdersEquity252.5229.5222.3188.6176.7194.6169.7168.8152.7152.1149.6134.7107.52.5
Percentage of Assets48.045.064.960.656.756.350.750.348.548.551.242.735.90.7
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value-1683.1-1535.3-1490.9-1321.8-1235.2-1235.2-1099.8-1073.2-964.7-948.0-940.3-806.5-608.0
Percentage of StockholdersEquity-222.1-196.7-190.1-147.6-134.6-165.4-137.0-137.8-118.2-118.8-116.5-109.2-87.2
Percentage of Assets-42.2-38.6-55.5-47.4-43.2-47.8-40.9-41.0-37.5-37.9-39.8-34.6-29.1
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value764793625743840602710664656612570541536518614575565396515528571490435421529648665663699686682616821
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets19.219.923.326.729.423.326.525.425.524.524.123.323.423.026.425.325.419.824.725.727.424.323.123.928.733.734.435.036.636.336.332.941.3

us-gaap:AssetsCurrent us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Assets
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value1.90.81.21.20.90.90.70.70.70.1
Percentage of AssetsCurrent0.30.10.20.20.10.10.10.10.10.0
Percentage of Assets0.10.00.00.00.00.00.00.00.00.0
Percentage of Assets srt:GuarantorSubsidiaries srt:ReportableLegalEntities14.56.811.812.811.814.114.923.325.97.7

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Assets
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value741839601709664655612569540614
Percentage of AssetsCurrent99.799.999.899.899.999.999.999.999.9100.0
Percentage of Assets26.629.323.326.425.425.524.424.123.226.3
Percentage of Assets srt:SubsidiaryIssuer srt:ReportableLegalEntities25.428.122.125.124.124.223.222.821.924.8

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302011-12-312010-12-31
Value1653041633174032002802471781801847571144170169197361532062541951026512128732829426036929464597457643656
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.17.66.111.414.17.810.49.56.97.27.83.23.16.47.37.48.91.87.410.012.29.75.43.76.615.017.015.513.619.615.73.40.00.02.90.02.10.0

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Cash
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312015-12-31
Value1.70.61.30.90.80.60.50.50.70.40.30.10.00.00.0
Percentage of CashAndCashEquivalentsAtCarryingValue0.50.10.60.30.30.30.30.30.90.60.20.10.00.00.0
Percentage of Assets0.10.00.10.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets srt:GuarantorSubsidiaries srt:ReportableLegalEntities13.05.112.79.610.59.410.616.725.90.00.07.70.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Cash
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312015-12-31
Value315403199279246178179184747114316916915333
Percentage of CashAndCashEquivalentsAtCarryingValue99.599.999.499.799.799.799.799.799.199.499.899.9100.0100.032.9
Percentage of Assets11.314.17.710.49.46.97.27.83.23.16.47.37.47.41.8
Percentage of Assets srt:SubsidiaryIssuer srt:ReportableLegalEntities10.813.57.39.99.06.66.87.43.00.00.06.90.00.00.0

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
Value165304163317403200280247178180184757114517016919736153102
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 Assets4.17.66.111.414.17.810.49.56.97.27.83.23.16.47.37.48.91.87.45.4

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Cash
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312015-12-31
Value1.70.61.30.90.80.60.50.50.70.40.30.10.00.00.0
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents0.50.10.60.30.30.30.30.30.90.60.20.10.00.00.0
Percentage of Assets0.10.00.10.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets srt:GuarantorSubsidiaries srt:ReportableLegalEntities13.05.112.79.610.59.410.616.725.90.00.07.70.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Cash
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312015-12-31
Value3154031992792461781791847471144169169153102
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents99.599.999.499.799.799.799.799.799.199.499.899.9100.0100.0100.0
Percentage of Assets11.314.17.710.49.46.97.27.83.23.16.47.37.47.45.4
Percentage of Assets srt:SubsidiaryIssuer srt:ReportableLegalEntities10.813.57.39.99.06.66.87.43.00.00.06.90.00.00.0

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value260182168142161136172164236227138231230198225192164156183139148128136144174165140206257212193225529
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.54.66.35.15.65.36.46.39.29.15.99.910.18.89.78.47.47.88.86.87.16.37.28.29.58.67.210.913.511.210.312.126.6

us-gaap:AccountsReceivableNetCurrent us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

musa:TradeAccountsReceivableCustomer


Accounts
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value88748161969617316979171164144145
Percentage of AccountsReceivableNetCurrent52.351.950.545.355.558.673.674.757.274.071.172.964.6
Percentage of Assets3.32.72.82.43.63.76.86.83.47.47.26.46.2
Percentage of Assets musa:TradeAccountsReceivableCustomer0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TradeAccountsReceivable


Accounts
Period End2021-06-302021-03-312020-12-31
Value14411188
Percentage of AccountsReceivableNetCurrent55.561.052.3
Percentage of Assets3.62.83.3
Percentage of Assets us-gaap:TradeAccountsReceivable0.00.00.0

us-gaap:AccountsReceivableNetCurrent us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Accounts
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value0.10.2-0.1-0.1-0.10.00.00.00.00.0
Percentage of AccountsReceivableNetCurrent0.10.1-0.1-0.1-0.10.00.00.00.00.0
Percentage of Assets0.00.0-0.0-0.0-0.00.00.00.00.00.0
Percentage of Assets srt:GuarantorSubsidiaries srt:ReportableLegalEntities0.81.7-1.0-1.1-1.30.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Accounts
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value142161136173164236227138231225
Percentage of AccountsReceivableNetCurrent99.999.9100.1100.1100.1100.0100.0100.0100.0100.0
Percentage of Assets5.15.65.36.46.39.29.15.99.99.7
Percentage of Assets srt:SubsidiaryIssuer srt:ReportableLegalEntities4.95.45.06.16.08.78.65.59.49.1

Inventory Net

us-gaap:InventoryNet

us-gaap:InventoryNet


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value31128327926825724322723321117822121520514818220017916615315215215515516520718418214516688179114217
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.87.110.49.69.09.48.58.98.27.19.49.28.96.67.88.88.18.37.37.47.37.78.39.311.39.69.57.78.74.79.56.110.9

us-gaap:InventoryNet us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Inventory
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value268257243227233211178221215182
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.69.09.48.58.98.27.19.49.27.8
Percentage of Assets srt:SubsidiaryIssuer srt:ReportableLegalEntities9.28.69.08.18.57.86.88.98.77.4

Inventory L I F O Reserve

us-gaap:InventoryLIFOReserve

us-gaap:InventoryLIFOReserve


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
Value222192101868042160162166181115208201181167174128143153131140107102130195164144284318313307
Percentage of InventoryLIFOReserve100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.64.83.83.12.81.66.06.26.57.24.99.08.88.17.27.75.87.27.36.46.75.35.57.410.68.67.515.016.716.616.4

Inventory Raw Materials And Supplies

us-gaap:InventoryRawMaterialsAndSupplies

us-gaap:InventoryRawMaterialsAndSupplies


Inventory
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value5.46.96.36.56.26.68.211105.94.513124.1624.6083.8193.1184.6033.2823.1344.0563.8475.2765.3825.3995.1425.0344.6624.7257.1545.679
Percentage of InventoryRawMaterialsAndSupplies100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.20.20.30.20.30.30.50.40.30.20.60.60.20.20.20.10.20.20.20.20.20.30.30.30.30.30.20.30.40.3

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value1151114311071079107410401013974944927905874846818792780756732714724707760746730711693673655656590
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets41.340.042.940.241.140.540.541.340.640.440.237.537.136.839.637.436.835.135.338.440.041.338.837.837.536.335.734.835.129.6

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value185418341808180717891758173817481741171416911679165916131565153214881430138513691332129912631253121512041194119012481169
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets66.564.170.067.368.468.469.474.174.974.875.172.072.872.678.273.472.468.768.672.675.470.565.764.864.163.063.263.366.758.7

us-gaap:PropertyPlantAndEquipmentNet us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Property
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value11119.08.26.75.54.02.32.01.2
Percentage of PropertyPlantAndEquipmentNet0.60.60.50.50.40.30.20.10.10.1
Percentage of Assets0.40.40.30.30.30.20.20.10.10.1
Percentage of Assets srt:GuarantorSubsidiaries srt:ReportableLegalEntities85.593.288.287.288.285.985.176.774.192.3

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Property
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value1842182317991799178217531734174517391678
Percentage of PropertyPlantAndEquipmentNet99.499.499.599.599.699.799.899.999.999.9
Percentage of Assets66.163.769.667.068.168.269.274.074.872.0
Percentage of Assets srt:SubsidiaryIssuer srt:ReportableLegalEntities63.160.966.263.864.764.765.669.870.567.8

Investments In Affiliates Subsidiaries Associates And Joint Ventures

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures

srt:ParentCompany, srt:ReportableLegalEntities


Investments
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value2916285026812591254424752442243723592223
Percentage of InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets104.699.6103.896.497.296.397.5103.2101.595.4
Percentage of Assets srt:ParentCompany srt:ReportableLegalEntities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Investments
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value143143143143144144144144144144
Percentage of InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures4.95.05.45.65.75.85.95.96.16.5
Percentage of Assets5.15.05.65.45.55.65.86.16.26.2
Percentage of Assets srt:SubsidiaryIssuer srt:ReportableLegalEntities4.94.85.35.15.25.35.55.85.95.9

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures us-gaap:ConsolidationItems

srt:ConsolidationEliminations


Investments
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value-3060.3-2993.6-2824.9-2735.7-2688.2-2619.1-2586.5-2581.4-2504.3-2368.3
Percentage of InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures-104.9-105.0-105.4-105.6-105.7-105.8-105.9-105.9-106.1-106.5
Percentage of Assets-109.8-104.6-109.3-101.8-102.7-101.9-103.3-109.3-107.7-101.6
Percentage of Assets srt:ConsolidationEliminations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-06-302021-03-31
Value329336
Percentage of Goodwill100.0100.0
Percentage of Assets8.38.5

us-gaap:Goodwill us-gaap:BusinessAcquisition

musa:QuickChek


Goodwillus-gaap:
Period End2021-01-29
Value336
Percentage of Goodwill0.0
Percentage of Assets0.0
Percentage of Assets musa:QuickChek0.0

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


Intangible
Period End2021-06-302021-03-312020-12-31
Value14114134
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0
Percentage of Assets3.53.51.3

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:FiniteLivedIntangibleAssetsNet


Finite
Period End2021-06-302021-03-312020-12-31
Value252534
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0
Percentage of Assets0.60.61.3

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:LeasesAcquiredInPlace


Finite
Period End2021-03-31
Value9.0
Percentage of FiniteLivedIntangibleAssetsNet35.4
Percentage of Assets0.2
Percentage of Assets us-gaap:LeasesAcquiredInPlace0.0

us-gaap:UseRights


Finite
Period End2021-06-302021-03-312020-12-31
Value343434
Percentage of FiniteLivedIntangibleAssetsNet134.8135.4100.0
Percentage of Assets0.90.91.3
Percentage of Assets us-gaap:UseRights0.00.00.0

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value396395147146142128124118111110
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.99.95.55.25.05.04.64.54.34.4

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-31
Value12121921911861721691621561534242414237444440404027131212131115178.103
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.37.26.96.56.76.36.26.16.11.81.81.81.91.61.92.02.01.92.01.30.70.70.70.70.60.80.90.4

us-gaap:OtherAssetsNoncurrent us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Other
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value191186172169162156153424237
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.1
Percentage of Assets6.96.56.76.36.26.16.11.81.81.6
Percentage of Assets srt:SubsidiaryIssuer srt:ReportableLegalEntities6.56.26.36.05.95.85.81.71.71.5

Accounts Payable And Accrued Liabilities Current

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value670638471442461400466495557512456519529475513454394387473376401356390364456411386458524487433459705
Percentage of AccountsPayableAndAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets16.816.017.515.916.115.517.318.921.720.419.422.323.121.122.019.917.719.422.718.319.317.720.720.624.821.420.024.227.525.823.024.535.4

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Accounts
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value0.30.5-0.10.00.00.00.00.00.00.0
Percentage of AccountsPayableAndAccruedLiabilitiesCurrent0.10.1-0.00.00.00.00.00.00.00.0
Percentage of Assets0.00.0-0.00.00.00.00.00.00.00.0
Percentage of Assets srt:GuarantorSubsidiaries srt:ReportableLegalEntities2.34.2-1.00.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Accounts
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value442461400466495557512456519513
Percentage of AccountsPayableAndAccruedLiabilitiesCurrent99.999.9100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets15.916.115.517.318.921.720.419.422.322.0
Percentage of Assets srt:SubsidiaryIssuer srt:ReportableLegalEntities15.215.414.716.518.020.619.418.321.120.7

Accrued Income Taxes Current

us-gaap:AccruedIncomeTaxesCurrent

us-gaap:AccruedIncomeTaxesCurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value12238.819406.10.01.20.0120.00.00.59424120.06.6656.0245.91225375031723515
Percentage of AccruedIncomeTaxesCurrent100.0100.0100.0100.0100.0100.00.0100.00.0100.00.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.60.30.71.40.20.00.10.00.50.00.00.01.20.60.00.40.30.31.32.02.61.73.81.90.8

us-gaap:AccruedIncomeTaxesCurrent us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Accrued
Period End2020-09-302020-06-302020-03-31
Value19416.5
Percentage of AccruedIncomeTaxesCurrent102.1101.0106.6
Percentage of Assets0.71.40.3
Percentage of Assets srt:SubsidiaryIssuer srt:ReportableLegalEntities0.71.40.2

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value696675531513553457505516578533478540550496533486409454514417455400392396472428413505584544526506733
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets17.517.019.818.419.417.718.819.822.521.320.323.324.022.022.921.318.422.724.620.321.919.820.822.425.622.321.426.630.628.828.027.136.8

us-gaap:LiabilitiesCurrent us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Liabilities
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value-37.5-39.0-40.8-41.7-43.6-44.9-46.7-48.6-49.3-50.8
Percentage of LiabilitiesCurrent-7.3-7.0-8.9-8.3-8.4-7.8-8.8-10.2-9.1-9.5
Percentage of Assets-1.3-1.4-1.6-1.6-1.7-1.7-1.9-2.1-2.1-2.2
Percentage of Assets srt:GuarantorSubsidiaries srt:ReportableLegalEntities-286.3-330.5-400.0-443.6-573.7-701.6-993.6-1620.0-1825.9-3907.7

srt:ParentCompany, srt:ReportableLegalEntities


Liabilities
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value230141141-0.11393013-0.1973829
Percentage of LiabilitiesCurrent45.025.530.8-0.026.95.22.5-0.0180.0155.5
Percentage of Assets8.34.95.5-0.05.31.20.5-0.041.935.6
Percentage of Assets srt:ParentCompany srt:ReportableLegalEntities7.94.95.3-0.05.51.20.5-0.041.337.3

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Liabilities
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value474606512701575748721681-229.2-90.8
Percentage of LiabilitiesCurrent92.4109.4111.8138.8111.4129.2135.2142.5-42.4-17.0
Percentage of Assets17.021.219.826.122.029.128.828.9-9.9-3.9
Percentage of Assets srt:SubsidiaryIssuer srt:ReportableLegalEntities16.320.318.824.820.927.627.327.2-9.3-3.7

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value16177.87.77.56.96.8
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.40.30.30.30.30.3

Other Accrued Liabilities Current

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:OtherAccruedLiabilitiesCurrent


Other
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value314943373864654820
Percentage of OtherAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.21.81.91.61.83.43.42.61.0

Taxes Payable Current

us-gaap:TaxesPayableCurrent

us-gaap:TaxesPayableCurrent


Taxes
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value848689897675715565
Percentage of TaxesPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.13.23.83.83.74.03.73.03.3

Debt And Capital Lease Obligations

us-gaap:DebtAndCapitalLeaseObligations

us-gaap:DebtAndCapitalLeaseObligations


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value1808181010021014102610381038987854859863867871876880884884687670679678688490489489488
Percentage of DebtAndCapitalLeaseObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets45.445.537.336.435.940.238.637.733.234.336.637.338.038.937.838.839.834.332.133.032.634.126.027.726.625.2

Long Term Debt And Capital Lease Obligations

us-gaap:LongTermDebtAndCapitalLeaseObligations

us-gaap:LongTermDebtAndCapitalLeaseObligations


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value17941796951963975987999966833838842846850856860864869620629638648657490489489488488
Percentage of LongTermDebtAndCapitalLeaseObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets45.045.135.434.534.138.237.236.932.433.535.736.437.138.036.937.939.131.030.131.131.132.626.027.726.625.425.2

us-gaap:LongTermDebtAndCapitalLeaseObligations us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Long
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value963975987999966833838842846860
Percentage of LongTermDebtAndCapitalLeaseObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets34.534.138.237.236.932.433.535.736.436.9
Percentage of Assets srt:SubsidiaryIssuer srt:ReportableLegalEntities33.032.636.335.435.130.831.733.734.334.8

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxLiabilitiesNet


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value289281218217225221216199194189192168165154
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.37.18.17.87.98.68.17.67.67.68.17.27.26.6

us-gaap:DeferredIncomeTaxLiabilitiesNet us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Deferred
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value217225221216199194189192168154
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.87.98.68.17.67.67.68.17.26.6
Percentage of Assets srt:SubsidiaryIssuer srt:ReportableLegalEntities7.57.58.27.77.27.27.27.76.86.2

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value383382142140136123118
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.69.65.35.04.84.84.4

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value4040151514
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0100.0100.0100.0100.0
Percentage of Assets1.01.00.60.60.5

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value4039151513
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0100.0100.0100.0100.0
Percentage of Assets1.01.00.60.50.5

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value3939141413
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0100.0100.0100.0100.0
Percentage of Assets1.01.00.60.50.5

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-312019-12-31
Value1412
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0100.0
Percentage of Assets0.50.5

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-31
Value166
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets6.2

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302019-06-302019-03-31
Value400399150148125119112110
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets10.110.05.65.34.74.54.44.4

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value664658244242
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0100.0100.0100.0
Percentage of Assets16.716.69.18.7

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value2632599394
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0100.0100.0100.0
Percentage of Assets6.66.53.53.4

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-312013-09-302012-12-31
Value7577807848959187468037798167978077386975631104
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets19.019.629.232.132.128.929.929.831.731.934.231.733.430.155.4

us-gaap:StockholdersEquity us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Stockholders
Period End2020-09-302020-06-302019-12-312018-12-31
Value50505151
Percentage of StockholdersEquity5.65.56.46.4
Percentage of Assets1.81.81.92.2
Percentage of Assets srt:GuarantorSubsidiaries srt:ReportableLegalEntities386.3430.5543.61720.0

srt:ParentCompany, srt:ReportableLegalEntities


Stockholders
Period End2020-09-302020-06-302019-12-312018-12-31
Value2686270925912437
Percentage of StockholdersEquity299.9295.1322.8301.9
Percentage of Assets96.394.796.5103.2
Percentage of Assets srt:ParentCompany srt:ReportableLegalEntities92.195.1100.0100.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Stockholders
Period End2020-09-302020-06-302019-12-312018-12-31
Value1065997741745
Percentage of StockholdersEquity118.9108.792.392.4
Percentage of Assets38.234.927.631.6
Percentage of Assets srt:SubsidiaryIssuer srt:ReportableLegalEntities36.533.326.329.8

us-gaap:StockholdersEquity us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems, us-gaap:StatementEquityComponents

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities, us-gaap:RetainedEarnings


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value-1.5-1.3-1.1-1.0-0.9-0.8-0.7-0.50.00.0
Percentage of StockholdersEquity-0.2-0.1-0.1-0.1-0.1-0.1-0.1-0.10.00.0
Percentage of Assets-0.1-0.0-0.0-0.0-0.0-0.0-0.0-0.00.00.0
Percentage of Assets srt:GuarantorSubsidiaries srt:ReportableLegalEntities us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.0

srt:ParentCompany, srt:ReportableLegalEntities, us-gaap:AdditionalPaidInCapital


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value1179118311831188118811891189119512051213
Percentage of StockholdersEquity131.7128.9158.4148.0152.6145.7149.1148.0163.3174.0
Percentage of Assets42.341.445.844.245.446.347.550.651.758.1
Percentage of Assets srt:ParentCompany srt:ReportableLegalEntities us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.0

srt:ParentCompany, srt:ReportableLegalEntities, us-gaap:RetainedEarnings


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value28272760259125022289221921872181994749
Percentage of StockholdersEquity315.7300.7347.0311.6293.8271.9274.1270.3134.7107.5
Percentage of Assets101.496.5100.393.187.586.387.392.442.735.9
Percentage of Assets srt:ParentCompany srt:ReportableLegalEntities us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.0

srt:ParentCompany, srt:ReportableLegalEntities, us-gaap:TreasuryStock


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value-1321.8-1235.2-1235.2-1099.8-1073.2-964.7-948.0-940.3-806.5-608.0
Percentage of StockholdersEquity-147.6-134.6-165.4-137.0-137.8-118.2-118.8-116.5-109.2-87.2
Percentage of Assets-47.4-43.2-47.8-40.9-41.0-37.5-37.9-39.8-34.6-29.1
Percentage of Assets srt:ParentCompany srt:ReportableLegalEntities us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities, us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-06-302019-03-312018-12-312017-12-312016-12-31
Value-2.1-2.5-2.00.70.00.00.00.00.0
Percentage of StockholdersEquity-0.2-0.3-0.30.10.00.00.00.00.0
Percentage of Assets-0.1-0.1-0.10.00.00.00.00.00.0
Percentage of Assets srt:SubsidiaryIssuer srt:ReportableLegalEntities us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities, us-gaap:AdditionalPaidInCapital


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value579578576578576573571572573571
Percentage of StockholdersEquity64.763.177.172.174.070.371.671.077.681.9
Percentage of Assets20.820.222.321.522.022.322.824.324.627.3
Percentage of Assets srt:SubsidiaryIssuer srt:ReportableLegalEntities us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities, us-gaap:RetainedEarnings


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value488421252161280210178172933687
Percentage of StockholdersEquity54.545.933.820.236.025.822.321.4126.498.7
Percentage of Assets17.514.79.86.010.78.27.17.340.032.9
Percentage of Assets srt:SubsidiaryIssuer srt:ReportableLegalEntities us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.0

us-gaap:StockholdersEquity us-gaap:ConsolidationItems

srt:ConsolidationEliminations


Stockholders
Period End2020-09-302020-06-302019-12-312018-12-31
Value-3060.3-2993.6-2735.7-2581.4
Percentage of StockholdersEquity-341.7-326.1-340.7-319.8
Percentage of Assets-109.8-104.6-101.8-109.3
Percentage of Assets srt:ConsolidationEliminations100.0100.0100.0100.0

us-gaap:StockholdersEquity us-gaap:ConsolidationItems, us-gaap:StatementEquityComponents

srt:ConsolidationEliminations, us-gaap:RetainedEarnings


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value-1691.8-1625.1-1456.4-1367.2-1319.7-1250.6-1218.0-1212.9-999.8-754.5
Percentage of StockholdersEquity-188.9-177.0-195.0-170.3-169.4-153.2-152.7-150.2-135.4-108.2
Percentage of Assets-60.7-56.8-56.4-50.9-50.4-48.6-48.6-51.4-42.9-36.1
Percentage of Assets srt:ConsolidationEliminations us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-06-302019-03-312018-12-312017-12-312016-12-31
Value-1.5-1.7-1.9-2.1-2.5-2.00.70.00.00.00.00.0
Percentage of StockholdersEquity-0.2-0.2-0.2-0.2-0.3-0.30.10.00.00.00.00.0
Percentage of Assets-0.0-0.0-0.1-0.1-0.1-0.10.00.00.00.00.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-312013-09-30
Value528525533530533530538536534531539549555549
Percentage of StockholdersEquity69.767.368.059.258.171.067.168.965.566.766.874.579.797.4
Percentage of Assets13.313.219.919.018.620.520.020.520.821.222.823.626.629.3
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-312013-09-30
Value0.50.50.50.50.50.50.50.50.50.50.50.50.50.467
Percentage of StockholdersEquity0.10.10.10.10.10.10.10.10.10.10.10.10.10.1
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-312013-09-30
Value1913179117431689162214531362131512461213120899474913
Percentage of StockholdersEquity252.5229.5222.3188.6176.7194.6169.7168.8152.7152.1149.6134.7107.52.5
Percentage of Assets48.045.064.960.656.756.350.750.348.548.551.242.735.90.7
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value-1683.1-1535.3-1490.9-1321.8-1235.2-1235.2-1099.8-1073.2-964.7-948.0-940.3-806.5-608.0
Percentage of StockholdersEquity-222.1-196.7-190.1-147.6-134.6-165.4-137.0-137.8-118.2-118.8-116.5-109.2-87.2
Percentage of Assets-42.2-38.6-55.5-47.4-43.2-47.8-40.9-41.0-37.5-37.9-39.8-34.6-29.1
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value500000.0500000.0500000.0500000.0500000.0500000.0500000.0500000.0500000.0500000.0500000.0500000.0500000.0500000.0468000.0468000.0468000.0468000.0468000.0468000.0468000.0468000.0468000.0468000.0468000.0468000.0468000.0468000.0468000.0468000.0467000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Additional Paid In Capital

us-gaap:AdditionalPaidInCapital

us-gaap:AdditionalPaidInCapital


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value528525533530533530538536534531539539546544549547545544555550551549558556553551557554552550548
Percentage of AdditionalPaidInCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets13.313.219.919.018.620.520.020.520.821.222.823.223.824.223.624.024.627.226.626.826.527.229.631.530.128.728.829.328.929.129.1

us-gaap:AdditionalPaidInCapital us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:ParentCompany, srt:ReportableLegalEntities


Additional
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value1179118311831188118811891189119511961205
Percentage of AdditionalPaidInCapital222.6222.0223.1220.7221.6222.6223.6221.7221.8219.3
Percentage of Assets42.341.445.844.245.446.347.550.651.451.7
Percentage of Assets srt:ParentCompany srt:ReportableLegalEntities40.441.544.145.946.748.148.749.050.754.2

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Additional
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value579578576578576573571572571573
Percentage of AdditionalPaidInCapital109.3108.6108.6107.4107.5107.4107.4106.3106.0104.2
Percentage of Assets20.820.222.321.522.022.322.824.324.624.6
Percentage of Assets srt:SubsidiaryIssuer srt:ReportableLegalEntities19.819.321.220.520.921.221.622.923.223.2

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value19131791174316891622145313621315124612131208113010851033994869801746749705659613527461400374351253190117107
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets48.045.064.960.656.756.350.750.348.548.551.248.647.345.942.738.236.137.335.934.331.730.428.026.121.719.518.213.310.06.25.7

us-gaap:RetainedEarningsAccumulatedDeficit us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Retained
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value-1.5-1.3-1.1-1.0-0.9-0.8-0.7-0.5-0.10.0
Percentage of RetainedEarningsAccumulatedDeficit-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.0-0.00.0
Percentage of Assets-0.1-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.00.0
Percentage of Assets srt:GuarantorSubsidiaries srt:ReportableLegalEntities-11.5-11.0-10.8-10.6-11.8-12.5-14.9-16.7-3.70.0

srt:ParentCompany, srt:ReportableLegalEntities


Retained
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value282727602591250222892219218721811130994
Percentage of RetainedEarningsAccumulatedDeficit167.4170.2178.3183.6174.0178.1180.2180.6100.0100.0
Percentage of Assets101.496.5100.393.187.586.387.392.448.642.7
Percentage of Assets srt:ParentCompany srt:ReportableLegalEntities96.996.996.796.690.089.789.689.547.944.7

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Retained
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value4884212521612802101781721069933
Percentage of RetainedEarningsAccumulatedDeficit28.926.017.411.921.316.914.714.394.693.8
Percentage of Assets17.514.79.86.010.78.27.17.346.040.0
Percentage of Assets srt:SubsidiaryIssuer srt:ReportableLegalEntities16.714.19.35.710.27.86.76.943.337.7

us-gaap:RetainedEarningsAccumulatedDeficit us-gaap:ConsolidationItems

srt:ConsolidationEliminations


Retained
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value-1691.8-1625.1-1456.4-1367.2-1319.7-1250.6-1218.0-1212.9-1135.8-999.8
Percentage of RetainedEarningsAccumulatedDeficit-100.2-100.2-100.2-100.3-100.3-100.4-100.4-100.4-100.5-100.5
Percentage of Assets-60.7-56.8-56.4-50.9-50.4-48.6-48.6-51.4-48.8-42.9
Percentage of Assets srt:ConsolidationEliminations55.354.351.650.049.147.747.147.045.442.2

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value-1500000.0-1700000.0-1900000.0-2100000.0-2500000.0-2000000.0700000.00
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets-0.0-0.0-0.1-0.1-0.1-0.10.00.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Accumulated
Period End2020-09-302020-06-302020-03-312019-12-312018-12-31
Value-2100000.0-2500000.0-2000000.0700000.00
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.00.0
Percentage of Assets-0.1-0.1-0.10.00.0
Percentage of Assets srt:SubsidiaryIssuer srt:ReportableLegalEntities-0.1-0.1-0.10.00.0

Treasury Stock Value

us-gaap:TreasuryStockValue

us-gaap:TreasuryStockValue


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value1683153514901321123512351099107396494894094194587380675366761860849745443829429423585514950
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets42.238.655.547.443.247.840.941.037.537.939.840.541.338.834.633.030.030.929.124.221.821.715.616.712.84.42.62.62.6

us-gaap:TreasuryStockValue us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:ParentCompany, srt:ReportableLegalEntities


Treasury
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value13211235123510991073964948940941806
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets47.443.247.840.941.037.537.939.840.534.6
Percentage of Assets srt:ParentCompany srt:ReportableLegalEntities45.343.346.142.442.239.038.838.639.936.3

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

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value3.83.65.42.82.82.62.82.62.32.22.42.22.7742.1971.3161.2082.3692.1653.1911.5892.2042.4582.451.9033.0512.5352.3272.5222.454
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems, us-gaap:StatementEquityComponents

srt:SubsidiaryIssuer, srt:ReportableLegalEntities, us-gaap:AdditionalPaidInCapital


Adjustments
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value5.42.82.82.62.82.62.32.22.42.22.9
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0104.5
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets srt:SubsidiaryIssuer srt:ReportableLegalEntities us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value3.83.65.42.82.82.62.82.62.32.22.42.22.7742.1971.3161.2082.3692.1653.1911.5892.2042.4582.451.9033.0512.5352.3272.5222.454
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value1012299585268113611267648157755810711712586-45.912741917666714334897725112-13.2581859391
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.01.53.33.53.92.7-1.54.21.43.13.12.32.11.21.22.51.70.52.7-0.33.91.92.1

us-gaap:NetCashProvidedByUsedInOperatingActivities us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Net
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
Value-0.40.1-0.10.0-0.1-0.2-0.2-0.50.0-0.10.00.0
Percentage of NetCashProvidedByUsedInOperatingActivities-0.50.0-0.10.0-0.1-0.3-0.4-0.30.0-0.20.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.0-0.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:GuarantorSubsidiaries srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Net
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
Value86268113-104.11267748-815.97559107117
Percentage of NetCashProvidedByUsedInOperatingActivities100.5100.0100.1-168.7100.1100.3100.4-518.7100.0100.2100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.01.53.33.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:SubsidiaryIssuer srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-82.0-696.3-61.0-64.1-52.0-47.2-51.1-66.3-56.2-29.5-41.4-61.7-53.7-52.3-56.707-67.8-72.2-65.4-60.627-42.247-5.758-26.222-31.004-67.064-59.071-32.495-54.133-42.876-29.315-23.091129-21.182-28.05-67.771
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.0-1.4-1.6-1.7-2.1-2.2-2.2-2.0-1.4-0.2-1.1-1.1-2.0-1.7-1.1-1.5-0.9-0.6-0.63.1-0.4-0.6-1.6

us-gaap:NetCashProvidedByUsedInInvestingActivities us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Net
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
Value-0.3-2.1-0.8-1.6-1.2-1.5-1.7-0.40.0-0.4-0.4-0.4
Percentage of NetCashProvidedByUsedInInvestingActivities0.54.01.73.11.82.75.81.0-0.00.70.80.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.0-0.0-0.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:GuarantorSubsidiaries srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Net
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
Value-63.8-49.9-46.4-49.5-65.1-54.7-27.8-41.0-61.7-53.3-51.9-56.3
Percentage of NetCashProvidedByUsedInInvestingActivities99.596.098.396.998.297.394.299.0100.099.399.299.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.0-1.4-1.6-1.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:SubsidiaryIssuer srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-158.1607-188.8-107.9-12.9-146.5228.7-22.4-22.7-6.8-9.9-78.5-79.9-59.603-86.2146-6.2-1.158-0.984-105.598-15.063-84.39538-79.997-6.719
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.0-2.1-2.5-1.8-2.74.6-0.2-0.0-0.0-2.2-0.4-2.00.8-1.7-0.2

us-gaap:NetCashProvidedByUsedInFinancingActivities us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Net
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
Value1.81.31.31.71.51.81.90.70.30.60.60.5
Percentage of NetCashProvidedByUsedInFinancingActivities-1.7-10.1-0.97.717.2-8.0-8.4-10.3-3.0-0.8-0.8-0.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:GuarantorSubsidiaries srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Net
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
Value-109.7-14.2-147.81867.2-24.2-24.6966-10.2-79.1-80.5-60.1
Percentage of NetCashProvidedByUsedInFinancingActivities101.7110.1100.9845.982.8108.0108.4-14208.8103.0100.8100.8100.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.0-2.1-2.5-1.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:SubsidiaryIssuer srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-139.1140-153.9-86.1203-80.03269-1.8-4.11093.5-73.3-24.8
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.0-1.9-0.8

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Cash
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1.1-0.70.40.10.20.10.0-0.20.30.10.2
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect-1.3-0.3-0.50.30.3-5.6-0.0-0.28.6-0.1-0.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:GuarantorSubsidiaries srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Cash
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-87.2204-80.43268-1.9-4.11093.2-73.4-25.0
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect101.3100.3100.599.799.7105.6100.0100.291.4100.1100.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.0-1.9-0.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:SubsidiaryIssuer srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.00.0

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value785.326-18.624-37.38.0-72.19.088-92.60.732-27.232287.907-27.09943-8.51820-8.147-8.599-28.3167.51426-72.946-50.2094419-28.393-163.5190.875-140.642-9.157
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Inventories

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInInventories


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value28-20.511101316-6.22232-42.76.410.056-33.9-31.0892112131.2210.048-2.956-0.456-9.203-16.589222.05937-20.21877-90.15581-81.04136-57.79624
Percentage of IncreaseDecreaseInInventories100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value1012299585268113611267648157755810711712586-45.912741917666714334897725112-13.2581859391
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.01.53.33.53.92.7-1.54.21.43.13.12.32.11.21.22.51.70.52.7-0.33.91.92.1

us-gaap:NetCashProvidedByUsedInOperatingActivities us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Net
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
Value-0.40.1-0.10.0-0.1-0.2-0.2-0.50.0-0.10.00.0
Percentage of NetCashProvidedByUsedInOperatingActivities-0.50.0-0.10.0-0.1-0.3-0.4-0.30.0-0.20.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.0-0.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:GuarantorSubsidiaries srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Net
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
Value86268113-104.11267748-815.97559107117
Percentage of NetCashProvidedByUsedInOperatingActivities100.5100.0100.1-168.7100.1100.3100.4-518.7100.0100.2100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.01.53.33.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:SubsidiaryIssuer srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.00.00.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value128556166168894769325.3774551391246755-3.02643454685666026229862739.63393417722191166-12.7
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.01.41.23.72.11.7-0.11.41.51.53.42.31.80.70.82.71.31.50.22.20.91.60.50.40.21.3-0.3

us-gaap:NetIncomeLoss us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Net
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-0.2-0.2-0.1-0.1-0.1-0.1-0.2-0.40.00.00.00.00.0
Percentage of NetIncomeLoss-0.3-0.1-0.1-0.2-0.1-0.3-3.8-0.50.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:GuarantorSubsidiaries srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:ParentCompany, srt:ReportableLegalEntities


Net
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value661688921369325.3105145513912467
Percentage of NetIncomeLoss100.0100.0100.0448.3100.0100.0100.01356.4100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.01.41.23.72.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:ParentCompany srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Net
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value6616889-118.269325.3-896.245513912467
Percentage of NetIncomeLoss100.0100.0100.0-248.3100.0100.0100.0-1156.4100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.01.41.23.72.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:SubsidiaryIssuer srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems, us-gaap:StatementEquityComponents

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities, us-gaap:RetainedEarnings


Net
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value-0.2-0.2-0.1-0.1-0.1-0.2-0.40.0-0.10.00.0
Percentage of NetIncomeLoss-0.3-0.1-0.1-0.1-0.3-3.8-0.50.0-0.20.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.0-0.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:GuarantorSubsidiaries srt:ReportableLegalEntities us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.0

srt:ParentCompany, srt:ReportableLegalEntities, us-gaap:RetainedEarnings


Net
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value661688969325.31051455139124
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.01356.4100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.01.41.23.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:ParentCompany srt:ReportableLegalEntities us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities, us-gaap:RetainedEarnings


Net
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value661688969325.3-896.2455139124
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0-1156.4100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.01.41.23.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:SubsidiaryIssuer srt:ReportableLegalEntities us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:ConsolidationItems

musa:CorporateAndReconcilingItems


Net
Period End2021-06-302021-03-312020-06-302020-03-31
Value-16.8-25.1-10.7-11.6
Percentage of NetIncomeLoss-13.0-45.4-6.3-13.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax musa:CorporateAndReconcilingItems0.00.00.00.0

srt:ConsolidationEliminations


Net
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-66.7-168.7-89.2-47.5-69.1-32.6-5.1-77.1-45.0-51.8-39.3-124.9-67.9
Percentage of NetIncomeLoss-99.7-99.9-99.9-99.8-99.9-99.7-96.2-99.5-100.0-100.0-100.0-100.0-100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.0-1.4-1.2-3.7-2.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:ConsolidationEliminations0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CorporateNonSegment


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-19.0-14.8-10.7-11.6-12.7-24.8-11.8-10.9-10.6-9.6-9.028-30.28-7.943-8.2-3.6-7.353-7.264
Percentage of NetIncomeLoss-31.1-22.1-6.3-13.0-26.7-35.8-36.1-205.7-13.7-21.3-17.472.8-24.2-11.7-14.8119.0-16.8-16.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.0-0.20.9-0.9-0.2-0.3-0.1-0.2-0.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.0-9000.07150.00.00.00.0-1800.00.00.0

us-gaap:NetIncomeLoss us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, musa:MarketingSegment


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302013-09-302012-09-30
Value145808081179100609444168854601015575630.651524020
Percentage of NetIncomeLoss113.0145.4131.1122.1106.3113.0126.7135.8136.1305.7113.7121.3117.427.2124.2111.7114.6-19.8116.8116.098.1186.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.01.60.34.62.32.00.01.71.70.90.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments musa:MarketingSegment0.00.00.00.00.00.00.00.00.00.00.00.01.60.30.00.02.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:ConsolidationItems, us-gaap:StatementEquityComponents

srt:ConsolidationEliminations, us-gaap:RetainedEarnings


Net
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value-66.7-168.7-89.2-69.1-32.6-5.1-77.1-45.0-51.7-39.3-124.9
Percentage of NetIncomeLoss-99.7-99.9-99.9-99.9-99.7-96.2-99.5-100.0-99.8-100.0-100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.0-1.4-1.2-3.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:ConsolidationEliminations us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Net
Period End2020-09-302020-06-30
Value0.4-0.5
Percentage of NetIncomeLoss0.6-0.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedOtherComprehensiveIncome0.00.0

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value12855661688969325.3774551391246755-3.02643454685666026229862739.63393
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.01.41.23.72.11.7-0.11.41.51.53.42.31.80.70.82.71.31.50.22.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-82.0-696.3-61.0-64.1-52.0-47.2-51.1-66.3-56.2-29.5-41.4-61.7-53.7-52.3-56.707-67.8-72.2-65.4-60.627-42.247-5.758-26.222-31.004-67.064-59.071-32.495-54.133-42.876-29.315-23.091129-21.182-28.05-67.771
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.0-1.4-1.6-1.7-2.1-2.2-2.2-2.0-1.4-0.2-1.1-1.1-2.0-1.7-1.1-1.5-0.9-0.6-0.63.1-0.4-0.6-1.6

us-gaap:NetCashProvidedByUsedInInvestingActivities us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Net
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
Value-0.3-2.1-0.8-1.6-1.2-1.5-1.7-0.40.0-0.4-0.4-0.4
Percentage of NetCashProvidedByUsedInInvestingActivities0.54.01.73.11.82.75.81.0-0.00.70.80.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.0-0.0-0.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:GuarantorSubsidiaries srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Net
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
Value-63.8-49.9-46.4-49.5-65.1-54.7-27.8-41.0-61.7-53.3-51.9-56.3
Percentage of NetCashProvidedByUsedInInvestingActivities99.596.098.396.998.297.394.299.0100.099.399.299.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.0-1.4-1.6-1.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:SubsidiaryIssuer srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.00.00.0

Payments To Acquire Productive Assets

us-gaap:PaymentsToAcquireProductiveAssets

us-gaap:PaymentsToAcquireProductiveAssets


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value8353616359465167563041605348566768656382694753605832543129234226276729
Percentage of PaymentsToAcquireProductiveAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireProductiveAssets us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Payments
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
Value0.32.10.81.61.21.51.70.40.00.40.40.4
Percentage of PaymentsToAcquireProductiveAssets0.53.61.73.11.82.75.61.00.00.70.80.7

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Payments
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
Value635745496554284060534856
Percentage of PaymentsToAcquireProductiveAssets99.596.498.396.998.297.394.499.0100.099.399.299.4

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-158.1607-188.8-107.9-12.9-146.5228.7-22.4-22.7-6.8-9.9-78.5-79.9-59.603-86.2146-6.2-1.158-0.984-105.598-15.063-84.39538-79.997-6.719
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.0-2.1-2.5-1.8-2.74.6-0.2-0.0-0.0-2.2-0.4-2.00.8-1.7-0.2

us-gaap:NetCashProvidedByUsedInFinancingActivities us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Net
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
Value1.81.31.31.71.51.81.90.70.30.60.60.5
Percentage of NetCashProvidedByUsedInFinancingActivities-1.7-10.1-0.97.717.2-8.0-8.4-10.3-3.0-0.8-0.8-0.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:GuarantorSubsidiaries srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Net
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
Value-109.7-14.2-147.81867.2-24.2-24.6966-10.2-79.1-80.5-60.1
Percentage of NetCashProvidedByUsedInFinancingActivities101.7110.1100.9845.982.8108.0108.4-14208.8103.0100.8100.8100.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.0-2.1-2.5-1.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:SubsidiaryIssuer srt:ReportableLegalEntities0.00.00.00.00.00.00.00.00.00.00.00.0

Proceeds From Issuance Of Long Term Debt

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:ProceedsFromIssuanceOfLongTermDebt


Proceeds
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302013-12-31
Value0.08920.00.0500.00.00.00.00.00.00.0296420.00.00.02000.00.00.0
Percentage of ProceedsFromIssuanceOfLongTermDebt0.0100.00.00.0100.00.00.00.00.00.00.00.0100.0100.00.00.00.0100.00.00.00.0

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt


Repayments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value2.521412120.35625.35.45.35.35.30.23399260.116100.0730.0150.00.05515810.010.0120.0120.011
Percentage of RepaymentsOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfLongTermDebt us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Repayments
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value12120.35625.35.45.35.35.3
Percentage of RepaymentsOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments Of Dividends

us-gaap:PaymentsOfDividends

us-gaap:PaymentsOfDividends


Payments
Period End2021-06-302021-03-31
Value6.76.8
Percentage of PaymentsOfDividends100.0100.0

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value14850169890.01402610916130.00.072715385481711045171500.058150391.3270.0
Percentage of PaymentsForRepurchaseOfCommonStock100.0100.0100.0100.00.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.00.0

us-gaap:PaymentsForRepurchaseOfCommonStock us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:ParentCompany, srt:ReportableLegalEntities


Payments
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
Value890.01402610916130.00.0727154
Percentage of PaymentsForRepurchaseOfCommonStock100.00.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:EffectiveIncomeTaxRateContinuingOperations


Effective
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-30
Value24.224.624.10.2430.2390.2420.2450.1090.2110.250.1680.3750.382-0.6920.3660.3750.3840.3620.3620.4270.3760.3190.3870.3820.3890.4110.444
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value90.1888.9479.679.674.7574.7568.5265.7152.3947.8842.2236.035.13
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value218216192154204162119122142
Percentage of DeferredTaxLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value400000.0600000.0700000.04438000.07874000.05450000.06101000.00
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.00.0

musa:AssetRetirementObligationAdditionalAcquired

musa:AssetRetirementObligationAdditionalAcquired


Asset
Period End2021-06-302021-03-31
Value01200000.0
Percentage of AssetRetirementObligationAdditionalAcquired0.0100.0

musa:OtherComprehensiveIncomeLossCashFlowHedgeRealizedGainLossBeforeReclassificationAndTax

musa:OtherComprehensiveIncomeLossCashFlowHedgeRealizedGainLossBeforeReclassificationAndTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value0-100000.0-400000.0-400000.0-200000.0100000.000
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeRealizedGainLossBeforeReclassificationAndTax0.0100.0100.0100.0100.0100.00.00.0

musa:OtherComprehensiveIncomeLossCashFlowHedgeRealizedGainLossBeforeReclassificationAndTax us-gaap:DerivativeInstrumentRisk

us-gaap:InterestRateSwap


Other
Period End2021-03-31
Value200000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeRealizedGainLossBeforeReclassificationAndTax-200.0

musa:OtherComprehensiveIncomeLossCashFlowHedgeUnrealizedGainLossBeforeReclassificationAndTax us-gaap:DerivativeInstrumentRisk

musa:OtherComprehensiveIncomeLossCashFlowHedgeUnrealizedGainLossBeforeReclassificationAndTax

us-gaap:InterestRateSwap


Other
Period End2021-03-31
Value-400000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeUnrealizedGainLossBeforeReclassificationAndTax100.0

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value0.55.85.10.05.60.10.24.11.44.60.52.90.3190.0710.085.079-2.6471.1580.1084.1290.040.0050.1232.907-0.0940.134
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems, us-gaap:StatementEquityComponents

srt:SubsidiaryIssuer, srt:ReportableLegalEntities, us-gaap:AdditionalPaidInCapital


Adjustments
Period End2020-09-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value5.15.60.10.24.11.44.60.52.90.4
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0125.4

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value0.55.85.10.05.60.10.24.11.44.60.52.90.3190.0710.085.079-2.6471.1580.1084.1290.040.0050.1232.907-0.0940.134
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetRetirementObligationAccretionExpense

us-gaap:AssetRetirementObligationAccretionExpense


Asset
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value700000.0600000.0600000.0600000.0500000.0600000.0500000.0600000.0500000.0500000.0500000.0500000.0500000.0500000.0450000.0447000.0446000.0442000.0414000.0411000.0412000.0413000.0384000.0380000.0379000.0378000.0303000.0300000.0300000.0297000.0275000.0274000.0278000.0269000.0244000.0245000.0
Percentage of AssetRetirementObligationAccretionExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetRetirementObligationAccretionExpense us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Asset
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value600000.0500000.0600000.0500000.0600000.0500000.0500000.0500000.0500000.0500000.0500000.0500000.0400000.0
Percentage of AssetRetirementObligationAccretionExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0111.189.5

us-gaap:AssetRetirementObligationLiabilitiesIncurred

us-gaap:AssetRetirementObligationLiabilitiesIncurred


Asset
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value600000.0100000.0100000.00200000.0100000.0100000.00200000.00600000.00221000.063000.0125000.042000.0149000.0224000.006000.0259000.081000.0160000.079000.03518000.047000.0172000.0178000.0142000.0
Percentage of AssetRetirementObligationLiabilitiesIncurred100.0100.0100.00.0100.0100.0100.00.0100.00.0100.00.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetRetirementObligationLiabilitiesSettled

us-gaap:AssetRetirementObligationLiabilitiesSettled


Asset
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value300000.0200000.0100000.0400000.0100000.0200000.0200000.0100000.0100000.000100000.00200000.01000.0-1000.0-124000.0401000.0010000.035000.0129000.0
Percentage of AssetRetirementObligationLiabilitiesSettled100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.00.0100.0100.0100.0100.0100.00.0100.0100.0100.0

us-gaap:BusinessCombinationAcquisitionRelatedCosts

us-gaap:BusinessCombinationAcquisitionRelatedCosts


Business
Period End2021-06-302021-03-31
Value200000.08800000.0
Percentage of BusinessCombinationAcquisitionRelatedCosts100.0100.0

us-gaap:BusinessCombinationAcquisitionRelatedCosts us-gaap:BusinessAcquisition

musa:QuickChek


Business
Period End2021-06-302021-03-31
Value200000.08800000.0
Percentage of BusinessCombinationAcquisitionRelatedCosts100.0100.0

us-gaap:CashAcquiredFromAcquisition us-gaap:BusinessAcquisition

us-gaap:CashAcquiredFromAcquisition

musa:QuickChek


Cash
Period End2021-01-29
Value800000.0
Percentage of CashAcquiredFromAcquisition100.0

us-gaap:CommonStockDividendsPerShareDeclared

us-gaap:CommonStockDividendsPerShareDeclared


Common
Period End2021-03-31
Value0.25
Percentage of CommonStockDividendsPerShareDeclared100.0

us-gaap:DeferredIncomeTaxesAndTaxCredits

us-gaap:DeferredIncomeTaxesAndTaxCredits


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value8.03.70.8-7.73.55.9164.25.1-2.4242.5101.1-67.844.4157.4025.6122.77123-14.252852-2.542-4.276-5.1219.5480.358-6.382-4.5565.21-5.784-5.416-1.272-9.297
Percentage of DeferredIncomeTaxesAndTaxCredits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxesAndTaxCredits us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Deferred
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
Value-7.73.55.9164.25.1-2.4242.5101.1-67.8
Percentage of DeferredIncomeTaxesAndTaxCredits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.099.9

us-gaap:DepreciationAndAmortization

us-gaap:DepreciationAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value535141403939383736393534333133282727252523232221212120191919151918181419
Percentage of DepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationAndAmortization us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Depreciation
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.10.10.00.10.00.00.00.00.00.00.00.00.0
Percentage of DepreciationAndAmortization0.20.30.00.30.00.00.00.00.00.00.00.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Depreciation
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value40393938373639353433313329
Percentage of DepreciationAndAmortization99.899.7100.099.7100.0100.0100.0100.0100.0100.0100.099.8100.0

us-gaap:DividendsCommonStock

us-gaap:DividendsCommonStock


Dividends
Period End2021-06-302021-03-31
Value6700000.06800000.0
Percentage of DividendsCommonStock100.0100.0

us-gaap:DividendsCommonStock us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Dividends
Period End2021-06-302021-03-31
Value6700000.06800000.0
Percentage of DividendsCommonStock100.0100.0

us-gaap:DividendsShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:DividendsShareBasedCompensation

us-gaap:AdditionalPaidInCapital


Dividends
Period End2021-03-31
Value-100000.0
Percentage of DividendsShareBasedCompensation100.0

us-gaap:RetainedEarnings


Dividends
Period End2021-03-31
Value100000.0
Percentage of DividendsShareBasedCompensation-100.0

us-gaap:EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount

us-gaap:EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount


Effective
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-2000000.0900000.0800000.0800000.00600000.0-800000.00100000.0800000.0-300000.01800000.0300000.0700000.0
Percentage of EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions


Employee
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value-100000.0800000.00000100000.0001900000.0100000.0100000.0400000.00100000.0100000.0-100000.0
Percentage of EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions100.0100.00.00.00.00.0100.00.00.0100.0100.0100.0100.00.0100.0100.0100.0

us-gaap:ExciseAndSalesTaxes

us-gaap:ExciseAndSalesTaxes


Excise
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value524469459447380473480498498455474464466434499488504480495505487472508513483462500501483445464483492443531497
Percentage of ExciseAndSalesTaxes100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseInterestExpense

us-gaap:FinanceLeaseInterestExpense


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2200000.01400000.000000000
Percentage of FinanceLeaseInterestExpense100.0100.00.00.00.00.00.00.00.00.0

us-gaap:FinanceLeaseInterestPaymentOnLiability

us-gaap:FinanceLeaseInterestPaymentOnLiability


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2200000.01400000.000100000.0000100000.00
Percentage of FinanceLeaseInterestPaymentOnLiability100.0100.00.00.0100.00.00.00.0100.00.0

us-gaap:FinanceLeasePrincipalPayments

us-gaap:FinanceLeasePrincipalPayments


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2500000.01800000.0300000.0400000.0300000.0400000.0300000.0400000.0300000.0400000.0
Percentage of FinanceLeasePrincipalPayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseRightOfUseAssetAmortization

us-gaap:FinanceLeaseRightOfUseAssetAmortization


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value3800000.02600000.0300000.0300000.0300000.0300000.0300000.0300000.0300000.0300000.0
Percentage of FinanceLeaseRightOfUseAssetAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnSaleOfPropertyPlantEquipment

us-gaap:GainLossOnSaleOfPropertyPlantEquipment


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-0.10.2-0.10.01.30.10.00.20.0-0.1-0.4-0.5-0.50.3-0.524-0.0580.13-3.498-0.428-0.335-0.4989-0.567-4.072-0.0230.0040.0240.00.00.170.0155.9720.00.008-1.1680.089
Percentage of GainLossOnSaleOfPropertyPlantEquipment100.0100.0100.00.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.00.0100.0100.0100.0

us-gaap:GainLossOnSaleOfPropertyPlantEquipment us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Gain
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.01.30.10.00.20.0-0.1-0.4-0.5-0.50.3-0.50.0
Percentage of GainLossOnSaleOfPropertyPlantEquipment0.0100.0100.00.0100.00.0100.0100.0100.0100.0100.095.4-0.0

us-gaap:GoodwillAcquiredDuringPeriod

us-gaap:GoodwillAcquiredDuringPeriod


Goodwill
Period End2021-03-31
Value336
Percentage of GoodwillAcquiredDuringPeriod100.0

us-gaap:IncomeLossFromSubsidiariesNetOfTax us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:IncomeLossFromSubsidiariesNetOfTax

srt:ParentCompany, srt:ReportableLegalEntities


Income
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value661688969325.345513967
Percentage of IncomeLossFromSubsidiariesNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Income
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value-0.2-0.2-0.1-0.1-0.1-0.20.00.00.00.0
Percentage of IncomeLossFromSubsidiariesNetOfTax-0.3-0.1-0.1-0.1-0.3-3.80.00.00.00.0

us-gaap:IncomeLossFromSubsidiariesNetOfTax us-gaap:ConsolidationItems

srt:ConsolidationEliminations


Income
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value-66.7-168.7-89.2-69.1-32.6-5.1-45.0-51.8-39.3-67.9
Percentage of IncomeLossFromSubsidiariesNetOfTax-99.7-99.9-99.9-99.9-99.7-96.2-100.0-100.0-100.0-100.0

us-gaap:IncomeTaxReconciliationOtherAdjustments

us-gaap:IncomeTaxReconciliationOtherAdjustments


Income
Period End2021-06-302021-01-292021-03-312020-09-302020-06-302020-03-31
Value2000000.0-400000.0-1000000.03500000.0-1400000.0-400000.0
Percentage of IncomeTaxReconciliationOtherAdjustments100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value328135-15.254-66.1-33.1-64.24248-62.4-10.050-35.251523.627-80.86989-24.24444-26.31517-83.5514026-76.116-66.3363753-17.597-137.18428-146.01121
Percentage of IncreaseDecreaseInAccountsPayableAndAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable

us-gaap:IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value-11.514-10.6-21.4346.10.00.00.00.0-1.21.2-12.216120.0-0.5941.878-24.1841112-13.9047.880.112-19.6874.758-13.43718-40.626-24.224261.2823.65410
Percentage of IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable100.0100.0100.0100.0100.0100.00.00.00.00.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOperatingCapital

us-gaap:IncreaseDecreaseInOperatingCapital


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value90-108.01025-48.925453.22.2-1.7-18.11140-36.0-21.32-26.4444.31980-48.34452-32.58-24.84713196.0817.811438.14465-84.752100-129.4499.683-55.205-19.79
Percentage of IncreaseDecreaseInOperatingCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOperatingCapital us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Increase
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
Value0.3-0.20.00.00.00.10.00.10.00.00.00.0
Percentage of IncreaseDecreaseInOperatingCapital1.20.40.00.00.04.5-0.0-0.60.00.0-0.0-0.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Increase
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
Value25-48.725453.22.1-1.7-18.21140-36.0-21.4
Percentage of IncreaseDecreaseInOperatingCapital98.899.6100.0100.0100.095.5100.0100.6100.0100.0100.0100.4

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value4.83.3-1.3000000000000018-2.91.3-13.710-11.43.51.15.7-9.51.3-8.916-11.902-12.52912-1.814125.875-29.85327-11.03614-3.574-1.091-0.449
Percentage of IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements


Incremental
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value338000.0357000.053000.0388000.0314000.0306000.036000.0257000.0216000.0214000.0-18000.0323000.0292000.0364000.014000.0322000.0336000.00107000.0278000.0360000.0346000.09000.0323000.0331000.0403000.046000.0364000.0294000.0134000.099000.016000.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestIncomeOther

us-gaap:InterestIncomeOther


Interest
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value00200000.0800000.0800000.0800000.0900000.0700000.0700000.0200000.0300000.0300000.0478000.0466000.0318000.047000.0104000.0144000.0250000.080000.0269000.020000.015000.01873000.0203000.013000.013000.015000.011000.0354000.0453000.0281000.0
Percentage of InterestIncomeOther0.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestIncomeOther us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Interest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0200000.0800000.0800000.0800000.0900000.0700000.0700000.0200000.0300000.0300000.0500000.0400000.0
Percentage of InterestIncomeOther0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0104.685.8

us-gaap:LeaseCost

us-gaap:LeaseCost


Lease
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value16124.54.74.44.24.04.03.93.8
Percentage of LeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OciBeforeReclassificationsBeforeTaxAttributableToParent

us-gaap:OciBeforeReclassificationsBeforeTaxAttributableToParent


Oci
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value300000.0300000.0500000.0-600000.0-3600000.000
Percentage of OciBeforeReclassificationsBeforeTaxAttributableToParent100.0100.0100.0100.0100.00.00.0

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeaseCost


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value108.94.2000000000000024.44.13.93.73.73.63.5
Percentage of OperatingLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeasePayments

us-gaap:OperatingLeasePayments


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value178.24.13.93.83.73.63.53.43.3
Percentage of OperatingLeasePayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent


Other
Period End2021-06-302020-06-30
Value200000.0-600000.0
Percentage of OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value0100000.0300000.0500000.0-600000.0-3600000.000
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax0.0100.0100.0100.0100.0100.00.00.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax us-gaap:DerivativeInstrumentRisk

us-gaap:InterestRateSwap


Other
Period End2021-06-302021-03-31
Value-300000.02300000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax0.02300.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value0-100000.0-400000.0-400000.0-200000.0100000.000
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax0.0100.0100.0100.0100.0100.00.00.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value200000.0200000.0200000.0400000.0-500000.0-2700000.000
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.00.00.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Other
Period End2020-09-302020-06-302020-03-312019-06-302019-03-31
Value400000.0-500000.0-2700000.000
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.00.00.0

us-gaap:OtherComprehensiveIncomeLossTaxPortionAttributableToParent1

us-gaap:OtherComprehensiveIncomeLossTaxPortionAttributableToParent1


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value0100000.0100000.0100000.0-100000.0-900000.000
Percentage of OtherComprehensiveIncomeLossTaxPortionAttributableToParent10.0100.0100.0100.0100.0100.00.00.0

us-gaap:OtherOperatingActivitiesCashFlowStatement

us-gaap:OtherOperatingActivitiesCashFlowStatement


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value0.8112.8108.24.33.43.74.23.21.83.63.4-1.04.513-2.316-0.0860.9145.975-1.5732.4612.9043.989-2.5825.4912.5193.5462.7744.5133.6981.3181.02111-0.178-1.691
Percentage of OtherOperatingActivitiesCashFlowStatement100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherOperatingActivitiesCashFlowStatement us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Other
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
Value108.24.33.43.74.23.21.83.63.4-1.04.4
Percentage of OtherOperatingActivitiesCashFlowStatement100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.097.5

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsForProceedsFromOtherInvestingActivities


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312013-12-31
Value0.30.90.10.50.30.80.10.20.40.10.11.00.24.70.1380.4564.1430.00.07513131.30.02.8890.00.00.0
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.00.0100.00.00.00.0

us-gaap:PaymentsForProceedsFromOtherInvestingActivities us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Payments
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
Value0.50.30.80.10.20.40.10.11.00.24.70.1
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.072.5

us-gaap:PaymentsOfDebtIssuanceCosts

us-gaap:PaymentsOfDebtIssuanceCosts


Payments
Period End2021-06-302021-03-312019-12-312019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value100000.08800000.01000000.0000000165000.0935000.0000126000.03114000.0058000.000-75000.0851000.036000.063000.044000.0
Percentage of PaymentsOfDebtIssuanceCosts100.0100.0100.00.00.00.00.00.00.0100.0100.00.00.00.0100.0100.00.0100.00.00.0100.0100.0100.0100.0100.0

us-gaap:PaymentsOfDistributionsToAffiliates us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:PaymentsOfDistributionsToAffiliates

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Payments
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
Value-1.8-1.3-1.3-1.7-1.5-1.8-1.9-0.7-0.3-0.6-0.6-0.5
Percentage of PaymentsOfDistributionsToAffiliates100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:ParentCompany, srt:ReportableLegalEntities


Payments
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
Value-89.90.0-140.6139-109.0-16.8-13.39730.0-72.7-71.7-54.0
Percentage of PaymentsOfDistributionsToAffiliates4994.4-0.010815.4-8182.47266.7933.3700.0-139100.0-0.012116.711950.010800.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Payments
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
Value911.3141-137.41101815-973.00.3737254
Percentage of PaymentsOfDistributionsToAffiliates-5094.4-100.0-10915.48082.4-7366.7-1033.3-800.0139000.0-100.0-12216.7-12050.0-10900.0

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value0.55.80.05.10.05.60.10.10.34.01.44.60.52.90.3190.0710.085.079-1.2371.1580.1084.1290.0390.0060.1232.907-0.0940.133
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Payments
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
Value5.10.05.60.10.10.34.01.44.60.52.90.4
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0125.4

us-gaap:PaymentsToAcquireBusinessesGross us-gaap:BusinessAcquisition

us-gaap:PaymentsToAcquireBusinessesGross

musa:QuickChek


Payments
Period End2021-01-29
Value642
Percentage of PaymentsToAcquireBusinessesGross100.0

us-gaap:PaymentsToAcquireBusinessesGross us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

musa:QuickChek, us-gaap:SubsequentEvent


Payments
Period End2021-01-29
Value645
Percentage of PaymentsToAcquireBusinessesGross100.3

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired


Payments
Period End2021-06-302021-01-292021-03-31
Value-1.0642642
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired100.0100.0100.0

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired us-gaap:BusinessAcquisition

musa:QuickChek


Payments
Period End2021-01-29
Value641
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired99.8

us-gaap:ProceedsFromRepaymentsOfSecuredDebt us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:ProceedsFromRepaymentsOfSecuredDebt

musa:TermFacility, us-gaap:SecuredDebt


Proceeds
Period End2021-01-29
Value400
Percentage of ProceedsFromRepaymentsOfSecuredDebt100.0

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value0.50.30.40.17.40.20.11.00.31.10.00.00.11.10.198-0.0260.260.4550.326-1.2970.287860.0040.6340.0090.0820.0970.00.00.2790.0396.0380.0140.0220.17
Percentage of ProceedsFromSaleOfPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Proceeds
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
Value0.17.40.20.11.00.31.10.00.00.11.10.2
Percentage of ProceedsFromSaleOfPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0101.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue

musa:TimeBasedRestrictedStockUnits


Share
Period End2021-06-302021-03-312020-09-302020-06-302020-03-31
Value3.4280.06-0.950.6878.33
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0

us-gaap:PerformanceShares


Share
Period End2020-09-302020-06-302020-03-31
Value0065.75
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue-0.00.083.9

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

musa:TimeBasedRestrictedStockUnits


Share
Period End2021-06-302021-03-312020-09-302020-06-302020-03-31
Value-0.74132.630090.64
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue100.0100.00.00.0100.0

us-gaap:PerformanceShares


Share
Period End2021-03-312020-09-302020-06-302020-03-31
Value145.9101.09122.56
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue110.00.00.0135.2

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType, us-gaap:PlanName

musa:ReturnOnAverageCapitalEmployedPerformanceUnits, musa:TwoThousandThirteenLongTermIncentivePlan


Share
Period End2021-02-282020-02-292019-02-062018-02-072017-02-082016-02-102015-02-102014-02-11
Value126.0106.7276.1571.065.7559.1170.5739.46
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.00.00.00.00.00.00.00.0

musa:TotalShareholderReturnPerformanceUnits, musa:TwoThousandThirteenLongTermIncentivePlan


Share
Period End2021-02-282020-02-292019-02-062018-02-072017-02-082016-02-102015-02-102014-02-11
Value168.42142.07100.6587.694.5182.94100.3343.41
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.00.00.00.00.00.00.00.0

us-gaap:RestrictedStockUnitsRSU, musa:TwoThousandThirteenStockPlanForNonEmployeeDirectors


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-03-312018-03-312017-03-312016-06-302016-03-312015-03-312014-03-31
Value-0.74125.0400-5.53110.8676.6369.4266.01059.1471.5139.07
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue100.094.30.00.00.0122.30.00.00.00.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue

musa:TimeBasedRestrictedStockUnits


Share
Period End2021-06-302021-03-312020-09-302020-06-302020-03-31
Value300000.06600000.0500000.005900000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue100.0100.0100.00.0100.0

us-gaap:PerformanceShares


Share
Period End2021-03-312020-09-302020-06-302020-03-31
Value7300000.0007000000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue110.60.00.0118.6

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue us-gaap:AwardType, us-gaap:PlanName

us-gaap:RestrictedStockUnitsRSU, musa:TwoThousandThirteenStockPlanForNonEmployeeDirectors


Share
Period End2021-06-302021-03-312020-09-302020-06-302020-03-31
Value01200000.0001300000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue0.018.20.00.022.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue

musa:TimeBasedRestrictedStockUnits


Share
Period End2021-06-302021-03-312020-09-302020-06-302020-03-31
Value0.0771.950.45065.86
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue100.0100.0100.00.0100.0

us-gaap:PerformanceShares


Share
Period End2021-03-312020-09-302020-06-302020-03-31
Value76.780085.04
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue106.70.00.0129.1

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType, us-gaap:PlanName

us-gaap:RestrictedStockUnitsRSU, musa:TwoThousandThirteenStockPlanForNonEmployeeDirectors


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value069.3700066.01
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue0.096.40.00.00.0100.2

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate

musa:TwoThousandThirteenLongTermIncentivePlan


Share
Period End2021-02-282020-02-29
Value32.328.1
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate

musa:TwoThousandThirteenLongTermIncentivePlan


Share
Period End2021-02-282020-02-29
Value0.41.5
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType, us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

musa:NonqualifiedStockOptions, musa:TwoThousandThirteenLongTermIncentivePlan


Share
Period End2021-02-282020-02-29
Value32.028.28
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue100.0100.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice


Share
Period End2020-12-31
Value0
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice0.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice


Share
Period End2021-06-302021-03-312020-12-31
Value0.47126.00
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice100.0100.00.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems, us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation

srt:ParentCompany, srt:ReportableLegalEntities, us-gaap:AdditionalPaidInCapital


Stock
Period End2020-09-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value-3.3-5.7-0.5-0.1-5.6-1.3-4.3-0.6-4.4-0.5
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:ParentCompany, srt:ReportableLegalEntities, us-gaap:TreasuryStock


Stock
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value3.30.05.20.50.15.61.34.30.64.40.5
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation-100.00.0-91.2-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-09-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value-0.5-5.6-3.3-5.7-0.5-0.1-5.6-1.3-4.3-0.6-4.414-0.064-0.126-6.69-0.054-2.608-0.657-6.091-0.067-0.045-0.024-5.493-0.169
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation0.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0-2850.80.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value0.55.63.30.05.20.50.15.61.34.30.64.40.4910.1750.1266.690.0542.6080.6576.0910.0670.0450.0245.4930.169
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation0.00.0-100.00.0-91.2-100.0-100.0-100.0-100.0-100.0-100.0-100.0-98.20.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStockAcquiredAverageCostPerShare us-gaap:ShareRepurchaseProgram

us-gaap:TreasuryStockAcquiredAverageCostPerShare

musa:January2016ShareRepurchaseProgram


Treasury
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312019-01-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value125.6710.990103.177.774.4674.8666.7600-4.7977.180
Percentage of TreasuryStockAcquiredAverageCostPerShare100.0100.00.0100.0100.0100.0100.0100.00.00.0100.0100.00.0

us-gaap:TreasuryStockValueAcquiredCostMethod

us-gaap:TreasuryStockValueAcquiredCostMethod


Treasury
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value14850890.014010916130.00.072715385481711045171500.058150391.3270.0
Percentage of TreasuryStockValueAcquiredCostMethod100.0100.0100.00.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.00.0

us-gaap:TreasuryStockValueAcquiredCostMethod us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems, us-gaap:StatementEquityComponents

srt:ParentCompany, srt:ReportableLegalEntities, us-gaap:TreasuryStock


Treasury
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-31
Value890.014010916130.0727154
Percentage of TreasuryStockValueAcquiredCostMethod100.00.0100.0100.0100.0100.00.0100.0100.0100.0

us-gaap:TreasuryStockValueAcquiredCostMethod us-gaap:StatementEquityComponents

us-gaap:TreasuryStock


Treasury
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value14850890.014010916130.00.072715385481711045171500.058150391.3270.0
Percentage of TreasuryStockValueAcquiredCostMethod100.0100.0100.00.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.00.0

musa:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedExpenses us-gaap:BusinessAcquisition

musa:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedExpenses

musa:QuickChek


Business
Period End2021-01-29
Value68
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedExpenses100.0

musa:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetRetirementObligation us-gaap:BusinessAcquisition

musa:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetRetirementObligation

musa:QuickChek


Business
Period End2021-01-29
Value1200000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetRetirementObligation100.0

musa:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredCreditsAndOtherLiabilities us-gaap:BusinessAcquisition

musa:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredCreditsAndOtherLiabilities

musa:QuickChek


Business
Period End2021-01-29
Value7400000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredCreditsAndOtherLiabilities100.0

musa:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseLiabilities us-gaap:BusinessAcquisition

musa:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseLiabilities

musa:QuickChek


Business
Period End2021-01-29
Value238
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseLiabilities100.0

musa:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRightOfUseAssets us-gaap:BusinessAcquisition

musa:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRightOfUseAssets

musa:QuickChek


Business
Period End2021-01-29
Value238
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRightOfUseAssets100.0

musa:DebtInstrumentCovenantComplianceFixedChargeCoverageRatio

musa:DebtInstrumentCovenantComplianceFixedChargeCoverageRatio


Debt
Period End2020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value0.91.210.910.931.11.371.251.10.810.750.720.670.630.570.570.580.640.70.540.590.750.821.171.31.01.031.321.182.48
Percentage of DebtInstrumentCovenantComplianceFixedChargeCoverageRatio100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

musa:DebtInstrumentCovenantComplianceSecuredLeverageRatio

musa:DebtInstrumentCovenantComplianceSecuredLeverageRatio


Debt
Period End2020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312014-03-312013-12-312013-09-30
Value0.290.330.460.580.430.150.160.156760.190.180.190.230.230.260.550.440.170.20.39
Percentage of DebtInstrumentCovenantComplianceSecuredLeverageRatio100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

musa:DeferredTaxAssetOperatingLeaseRightOfUseAsset

musa:DeferredTaxAssetOperatingLeaseRightOfUseAsset


Deferred
Period End2020-12-312019-12-31
Value3125
Percentage of DeferredTaxAssetOperatingLeaseRightOfUseAsset100.0100.0

musa:DeferredTaxLiabilitiesOperatingLeaseRightOfUseAsset

musa:DeferredTaxLiabilitiesOperatingLeaseRightOfUseAsset


Deferred
Period End2020-12-312019-12-31
Value3124
Percentage of DeferredTaxLiabilitiesOperatingLeaseRightOfUseAsset100.0100.0

musa:FinanceLeaseLiabilityToBePaidAfterYearFour

musa:FinanceLeaseLiabilityToBePaidAfterYearFour


Finance
Period End2021-06-302021-03-31
Value147148
Percentage of FinanceLeaseLiabilityToBePaidAfterYearFour100.0100.0

musa:FinanceLeaseRightOfUseAssetAccumulatedDepreciation

musa:FinanceLeaseRightOfUseAssetAccumulatedDepreciation


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value8400000.05000000.02800000.02700000.02500000.02400000.02200000.01800000.0
Percentage of FinanceLeaseRightOfUseAssetAccumulatedDepreciation100.0100.0100.0100.0100.0100.0100.0100.0

musa:LeaseLiability

musa:LeaseLiability


Lease
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value5355361521501461321272.3
Percentage of LeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0

musa:LeaseRightofUseAsset

musa:LeaseRightofUseAsset


Lease
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value5295321501481451311272.9
Percentage of LeaseRightofUseAsset100.0100.0100.0100.0100.0100.0100.0100.0

musa:LesseeOperatingLeaseLiabilityToBePaidAfterYearFour

musa:LesseeOperatingLeaseLiabilityToBePaidAfterYearFour


Lessee
Period End2021-06-302021-03-312020-09-30
Value480468176
Percentage of LesseeOperatingLeaseLiabilityToBePaidAfterYearFour100.0100.0100.0

musa:LineOfCreditFacilityDividendRestrictionShortfallOfNetIncomeAndRetainedEarnings

musa:LineOfCreditFacilityDividendRestrictionShortfallOfNetIncomeAndRetainedEarnings


Line
Period End2020-12-31
Value82
Percentage of LineOfCreditFacilityDividendRestrictionShortfallOfNetIncomeAndRetainedEarnings100.0

musa:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingFairValue us-gaap:AwardType

musa:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingFairValue

musa:TimeBasedRestrictedStockUnits


Share
Period End2021-06-302021-03-312020-09-302020-06-302020-03-31
Value2527232116
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingFairValue100.0100.0100.0100.0100.0

us-gaap:PerformanceShares


Share
Period End2021-03-312020-09-302020-06-302020-03-31
Value19161410
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingFairValue71.069.567.166.5

musa:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingFairValue us-gaap:AwardType, us-gaap:PlanName

us-gaap:PerformanceShares, musa:TwoThousandThirteenLongTermIncentivePlan


Share
Period End2021-06-30
Value18
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingFairValue72.4

us-gaap:RestrictedStockUnitsRSU, musa:TwoThousandThirteenStockPlanForNonEmployeeDirectors


Share
Period End2021-06-302021-03-312020-09-302020-06-302020-03-31
Value4.04.44.03.52.6
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingFairValue16.015.916.716.215.9

musa:SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsOutstandingFairValue us-gaap:AwardType, us-gaap:PlanName

musa:SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsOutstandingFairValue

us-gaap:PerformanceShares, musa:MurphyUsaTwoThousandThirteenPlan


Sharebased
Period End2020-12-312019-12-31
Value1615
Percentage of SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsOutstandingFairValue100.0100.0

us-gaap:RestrictedStockUnitsRSU, musa:TwoThousandThirteenStockPlanForNonEmployeeDirectors


Sharebased
Period End2020-12-312019-12-31
Value4.13.9
Percentage of SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsOutstandingFairValue24.325.3

musa:SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsOutstandingFairValue us-gaap:PlanName

musa:MurphyUsaTwoThousandThirteenPlan


Sharebased
Period End2020-12-312019-12-31
Value2323
Percentage of SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsOutstandingFairValue141.4151.3

us-gaap:AccountsPayableRelatedPartiesCurrent us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

us-gaap:AccountsPayableRelatedPartiesCurrent

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Accounts
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value-37.4-39.1-40.3-41.7-43.6-44.9-46.7-48.6-49.3-50.8
Percentage of AccountsPayableRelatedPartiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:ParentCompany, srt:ReportableLegalEntities


Accounts
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value230141141-0.11393013-0.1973829
Percentage of AccountsPayableRelatedPartiesCurrent-617.4-360.6-349.90.2-318.8-66.8-28.30.2-1974.8-1632.3

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Accounts
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value-39.2525319658169187203-770.0-624.1
Percentage of AccountsPayableRelatedPartiesCurrent104.8-134.0-133.0-470.3-135.1-376.8-402.1-417.71561.91228.5

us-gaap:AccountsPayableTradeCurrent

us-gaap:AccountsPayableTradeCurrent


Accounts
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value261280274339309226230311612
Percentage of AccountsPayableTradeCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccrualForTaxesOtherThanIncomeTaxesCurrent

us-gaap:AccrualForTaxesOtherThanIncomeTaxesCurrent


Accrual
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value312526252626
Percentage of AccrualForTaxesOtherThanIncomeTaxesCurrent100.0100.0100.0100.0100.0100.0

us-gaap:AccruedInsuranceCurrent

us-gaap:AccruedInsuranceCurrent


Accrued
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value30242121212319177.085
Percentage of AccruedInsuranceCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent


Allowance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value100000.0100000.0100000.0100000.0100000.0100000.01200000.01200000.01100000.01100000.01100000.01100000.01100000.01100000.01094000.01094000.01921000.01891000.01891000.01988000.01988000.01982000.01963000.04456000.04456000.04456000.04456000.04456000.04456000.04456000.04456000.04548000.04576000.0
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetRetirementObligation

us-gaap:AssetRetirementObligation


Asset
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-312011-12-31
Value37363534333332323131303029282827262626252524242323222218181717161513
Percentage of AssetRetirementObligation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetRetirementObligationsNoncurrent

us-gaap:AssetRetirementObligationsNoncurrent


Asset
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value373635343333323231313030292828272626262525242423232222181817171615
Percentage of AssetRetirementObligationsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetRetirementObligationsNoncurrent us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Asset
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value34333332323131303028
Percentage of AssetRetirementObligationsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.1

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCapitalLeaseObligation us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCapitalLeaseObligation

musa:QuickChek


Business
Period End2021-01-29
Value136
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCapitalLeaseObligation100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets

musa:QuickChek


Business
Period End2021-01-29
Value5600000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables

musa:QuickChek


Business
Period End2021-01-29
Value8000000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities

musa:QuickChek


Business
Period End2021-01-29
Value59
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill

musa:QuickChek


Business
Period End2021-01-29
Value106
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory

musa:QuickChek


Business
Period End2021-01-29
Value24
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet

musa:QuickChek


Business
Period End2021-01-29
Value305
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets

musa:QuickChek


Business
Period End2021-01-29
Value5400000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment

musa:QuickChek


Business
Period End2021-01-29
Value429
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet

musa:QuickChek


Business
Period End2021-01-29
Value642
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet100.0

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

us-gaap:DebtInstrumentCarryingAmount

musa:TermFacility, musa:TermCreditAgreement, us-gaap:SecuredDebt


Debt
Period End2021-06-302021-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value3993990.00.06267727782879297971701801901902000.0
Percentage of DebtInstrumentCarryingAmount100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

musa:TermFacility, musa:TermCreditAgreementDue2023, us-gaap:SecuredDebt


Debt
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value2122252372502502000.0
Percentage of DebtInstrumentCarryingAmount0.00.00.00.00.00.00.0

us-gaap:LineOfCredit, musa:SeniorNotes4.75Due2029, us-gaap:SecuredDebt


Debt
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value4944944944934930.0
Percentage of DebtInstrumentCarryingAmount0.00.00.00.00.00.0

us-gaap:LineOfCredit, musa:SeniorNotes4.75Due2029, us-gaap:SeniorNotes


Debt
Period End2021-06-302021-03-312020-12-31
Value494494494
Percentage of DebtInstrumentCarryingAmount124.0124.00.0

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

musa:SeniorNotes375PercentDue2031, us-gaap:SeniorNotes


Debt
Period End2021-06-302021-03-31
Value494493
Percentage of DebtInstrumentCarryingAmount123.8123.8

musa:SeniorNotes4.75PercentDue2029, us-gaap:SeniorNotes


Debt
Period End2020-12-312019-12-312018-12-31
Value4944930.0
Percentage of DebtInstrumentCarryingAmount0.00.00.0

musa:SeniorNotes5.625PercentDue2027, us-gaap:SeniorNotes


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value2972972972972972972972972972972962962962962962962960.0
Percentage of DebtInstrumentCarryingAmount74.674.60.00.00.00.00.00.0479.2443.3412.4385.5361.8340.9322.3305.6305.50.0

musa:TermCreditAgreementDue2023, us-gaap:SecuredDebt


Debt
Period End2020-12-312019-12-31
Value212250
Percentage of DebtInstrumentCarryingAmount0.00.0

us-gaap:DebtInstrumentFaceAmount us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentFaceAmount

musa:TermFacility, us-gaap:SecuredDebt


Debt
Period End2021-01-29
Value400
Percentage of DebtInstrumentFaceAmount100.0

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

us-gaap:DebtInstrumentInterestRateEffectivePercentage

musa:TermFacility, musa:TermCreditAgreementDue2023, us-gaap:SecuredDebt


Debt
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value2.673.350.03350.03910.04310.04570.043
Percentage of DebtInstrumentInterestRateEffectivePercentage100.0100.0100.0100.0100.0100.0100.0

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

musa:TermCreditAgreementDue2023, us-gaap:SecuredDebt


Debt
Period End2020-12-312019-12-31
Value2.674.31
Percentage of DebtInstrumentInterestRateEffectivePercentage100.010000.0

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

us-gaap:DebtInstrumentUnamortizedDiscount

musa:TermFacility, musa:TermCreditAgreement, us-gaap:SecuredDebt


Debt
Period End2021-06-302021-03-31
Value900000.01000000.0
Percentage of DebtInstrumentUnamortizedDiscount100.0100.0

us-gaap:LineOfCredit, musa:SeniorNotes4.75Due2029, us-gaap:SecuredDebt


Debt
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value5300000.05400000.05600000.05800000.05900000.06100000.06200000.0
Percentage of DebtInstrumentUnamortizedDiscount530.00.00.00.00.00.00.0

us-gaap:LineOfCredit, musa:SeniorNotes4.75Due2029, us-gaap:SeniorNotes


Debt
Period End2021-06-302020-12-31
Value5100000.05400000.0
Percentage of DebtInstrumentUnamortizedDiscount566.70.0

us-gaap:DebtInstrumentUnamortizedDiscount us-gaap:DebtInstrument, us-gaap:LongtermDebtType

musa:SeniorNotes375PercentDue2031, us-gaap:SeniorNotes


Debt
Period End2021-06-302021-03-31
Value6000000.06100000.0
Percentage of DebtInstrumentUnamortizedDiscount666.7610.0

musa:SeniorNotes4.75PercentDue2029, us-gaap:SeniorNotes


Debt
Period End2020-12-312019-12-31
Value5400000.06100000.0
Percentage of DebtInstrumentUnamortizedDiscount0.00.0

musa:SeniorNotes5.625PercentDue2027, us-gaap:SeniorNotes


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value2200000.02300000.02400000.02500000.02600000.02700000.02700000.02800000.02900000.03000000.03100000.03200000.03300000.03400000.03496000.03589000.03682000.0
Percentage of DebtInstrumentUnamortizedDiscount244.4230.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DeferredCreditsAndOtherLiabilities

us-gaap:DeferredCreditsAndOtherLiabilities


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value2627165164154136130123116114101116
Percentage of DeferredCreditsAndOtherLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredCreditsAndOtherLiabilities us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Deferred
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value164154136130123116114101116
Percentage of DeferredCreditsAndOtherLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredIncomeTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value269253204164227182139143160
Percentage of DeferredIncomeTaxLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsGross


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value513612102219202117
Percentage of DeferredTaxAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value7200000.02100000.02600000.03436000.07623000.07297000.08995000.09479000.05507000.0
Percentage of DeferredTaxAssetsOther100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsPropertyPlantAndEquipment

us-gaap:DeferredTaxAssetsPropertyPlantAndEquipment


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value4500000.03700000.03300000.02833000.04059000.02666000.01692000.06456000.05729000.0
Percentage of DeferredTaxAssetsPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value8.06.16.34.382109.6479.7123.09
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value5.39.76.93.871108.2118.8371118
Percentage of DeferredTaxLiabilitiesOther100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value213191171142197157
Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesTaxDeferredIncome

us-gaap:DeferredTaxLiabilitiesTaxDeferredIncome


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value202725181817
Percentage of DeferredTaxLiabilitiesTaxDeferredIncome100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeCollateralRightToReclaimCash

us-gaap:DerivativeCollateralRightToReclaimCash


Derivative
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value0.61.01.02.71.81.62.22.32.83.22.82.02.912
Percentage of DerivativeCollateralRightToReclaimCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeCollateralRightToReclaimCash us-gaap:BalanceSheetLocation

us-gaap:PrepaidExpensesAndOtherCurrentAssets


Derivative
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value0.80.90.61.52.31.01.01.51.51.01.72.02.02.72.82.52.91.81.72.01.01.6
Percentage of DerivativeCollateralRightToReclaimCash0.00.0100.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.0

us-gaap:DerivativeNotionalAmount us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeNotionalAmount

us-gaap:InterestRateSwap


Derivative
Period End2020-12-312020-09-302020-06-302019-09-272019-08-27
Value127127135150150
Percentage of DerivativeNotionalAmount100.0100.0100.0100.0100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent


Employee
Period End2020-12-312019-12-31
Value3226
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized


Employee
Period End2020-12-31
Value18
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized100.0

us-gaap:ExcessOfReplacementOrCurrentCostsOverStatedLIFOValue

us-gaap:ExcessOfReplacementOrCurrentCostsOverStatedLIFOValue


Excess
Period End2021-06-302021-03-312020-12-312017-12-312017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value222192101167143153131140107102130195164144284318313307304303
Percentage of ExcessOfReplacementOrCurrentCostsOverStatedLIFOValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FIFOInventoryAmount

us-gaap:FIFOInventoryAmount


F
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value349300223203188145259276259247219319297218231271202208207188197168159196291236205314373294372
Percentage of FIFOInventoryAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseLiability

us-gaap:FinanceLeaseLiability


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value1351372.12.12.42.4
Percentage of FinanceLeaseLiability100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseLiability us-gaap:LeaseContractualTerm

musa:AutosAndEquipmentDueThrough2025


Finance
Period End2021-06-302021-03-312020-12-31
Value2.93.22.1
Percentage of FinanceLeaseLiability2.12.3100.0

musa:BuildingsDueThrough2055


Finance
Period End2021-06-302021-03-31
Value132134
Percentage of FinanceLeaseLiability97.997.7

us-gaap:FinanceLeaseLiabilityCurrent

us-gaap:FinanceLeaseLiabilityCurrent


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value10101.21.21.21.21.2
Percentage of FinanceLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityNoncurrent

us-gaap:FinanceLeaseLiabilityNoncurrent


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value1241270.90.91.21.11.2
Percentage of FinanceLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDue

us-gaap:FinanceLeaseLiabilityPaymentsDue


Finance
Period End2021-06-302021-03-312020-12-312020-09-30
Value2202272.22.2
Percentage of FinanceLeaseLiabilityPaymentsDue100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths


Finance
Period End2021-06-302021-03-312020-12-312020-09-30
Value18181.21.1
Percentage of FinanceLeaseLiabilityPaymentsDueNextTwelveMonths100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour


Finance
Period End2021-06-302021-03-31
Value1414
Percentage of FinanceLeaseLiabilityPaymentsDueYearFour100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree


Finance
Period End2021-06-302021-03-312020-12-312020-09-30
Value15150.30.1
Percentage of FinanceLeaseLiabilityPaymentsDueYearThree100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo


Finance
Period End2021-06-302021-03-312020-12-312020-09-30
Value16160.70.6
Percentage of FinanceLeaseLiabilityPaymentsDueYearTwo100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear


Finance
Period End2021-06-302021-03-312020-09-30
Value9.5140.4
Percentage of FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear100.0100.0100.0

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount


Finance
Period End2021-06-302021-03-312020-12-312020-09-30
Value85900.10.1
Percentage of FinanceLeaseLiabilityUndiscountedExcessAmount100.0100.0100.0100.0

us-gaap:FinanceLeaseRightOfUseAsset

us-gaap:FinanceLeaseRightOfUseAsset


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value1331372.62.62.92.93.02.9
Percentage of FinanceLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent


Finance
Period End2021-06-302021-03-312020-12-312020-09-30
Value6.75.24.24.6
Percentage of FinanceLeaseWeightedAverageDiscountRatePercent100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsGross

us-gaap:FiniteLivedIntangibleAssetsGross


Finite
Period End2021-06-302021-03-312020-12-31
Value303039
Percentage of FiniteLivedIntangibleAssetsGross100.0100.0100.0

us-gaap:InventoryRawMaterialsAndSuppliesNetOfReserves

us-gaap:InventoryRawMaterialsAndSuppliesNetOfReserves


Inventory
Period End2021-06-302021-03-312020-12-31
Value7400000.06200000.05400000.0
Percentage of InventoryRawMaterialsAndSuppliesNetOfReserves100.0100.0100.0

us-gaap:LIFOInventoryAmount

us-gaap:LIFOInventoryAmount


L
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value1271071211171081039811393651031119637649674645457566056669672602955-19.23664
Percentage of LIFOInventoryAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value41411616
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear


Lessee
Period End2021-06-302021-03-312020-09-302019-12-31
Value20304.114
Percentage of LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear100.0100.0100.0100.0

us-gaap:LettersOfCreditOutstandingAmount

us-gaap:LettersOfCreditOutstandingAmount


Letters
Period End2021-06-302021-03-312020-12-312020-09-30
Value10131313
Percentage of LettersOfCreditOutstandingAmount100.0100.0100.0100.0

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity us-gaap:CreditFacility

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity

musa:AssetBasedLoanFacility


Line
Period End2020-12-312020-03-312019-12-31
Value10091100
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity100.0100.0100.0

us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent

us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value141351515151382121212121211919191467404030300.2220.1820.1220.0770.0
Percentage of LongTermDebtAndCapitalLeaseObligationsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Long
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value51515138212121212119
Percentage of LongTermDebtAndCapitalLeaseObligationsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.1

us-gaap:LongTermDebtFairValue us-gaap:FairValueByMeasurementBasis

us-gaap:LongTermDebtFairValue

us-gaap:CarryingReportedAmountFairValueDisclosure


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value1673167210021014102610381038987854859863867871876880670
Percentage of LongTermDebtFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EstimateOfFairValueFairValueDisclosure


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value17121710102910431044103110691011870874866881882893904690
Percentage of LongTermDebtFairValue102.3102.3102.7102.9101.799.3103.0102.4101.8101.8100.4101.6101.2101.9102.7103.0

us-gaap:LossContingencyAccrualAtCarryingValue us-gaap:LossContingenciesByNatureOfContingency

us-gaap:LossContingencyAccrualAtCarryingValue

us-gaap:InsuranceClaims


Loss
Period End2021-06-302021-03-312020-09-30
Value373726
Percentage of LossContingencyAccrualAtCarryingValue100.0100.0100.0

us-gaap:OffMarketLeaseUnfavorable us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:OffMarketLeaseUnfavorable

us-gaap:LeasesAcquiredInPlace


Off
Period End2021-06-30
Value8800000.0
Percentage of OffMarketLeaseUnfavorable100.0

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent


Operating
Period End2021-06-302021-03-312020-12-312020-09-30
Value6.36.05.75.8
Percentage of OperatingLeaseWeightedAverageDiscountRatePercent100.0100.0100.0100.0

us-gaap:OtherPostretirementDefinedBenefitPlanLiabilitiesCurrentAndNoncurrent us-gaap:RetirementPlanType

us-gaap:OtherPostretirementDefinedBenefitPlanLiabilitiesCurrentAndNoncurrent

us-gaap:SupplementalEmployeeRetirementPlanDefinedBenefit


Other
Period End2020-12-312019-12-31
Value3700000.02100000.0
Percentage of OtherPostretirementDefinedBenefitPlanLiabilitiesCurrentAndNoncurrent100.0100.0

us-gaap:PrepaidExpenseCurrent

us-gaap:PrepaidExpenseCurrent


Prepaid
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value272413141722301930262519292736132537242917114111251014161615151218
Percentage of PrepaidExpenseCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PrepaidExpenseCurrent us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

srt:GuarantorSubsidiaries, srt:ReportableLegalEntities


Prepaid
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value0.10.00.00.40.20.30.20.20.00.0
Percentage of PrepaidExpenseCurrent0.70.00.01.31.01.00.80.80.00.0

srt:SubsidiaryIssuer, srt:ReportableLegalEntities


Prepaid
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value14172229182926251936
Percentage of PrepaidExpenseCurrent99.3100.0100.098.799.099.099.299.2100.099.9

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization


Property
Period End2021-06-302021-03-312020-12-312019-12-31
Value1286123311911079
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization100.0100.0100.0100.0

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization


Property
Period End2021-06-302021-03-312020-12-312019-12-31
Value2342230118671807
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization100.0100.0100.0100.0

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization us-gaap:PropertyPlantAndEquipmentByType

musa:PipelineAndTerminalFacilities


Property
Period End2020-12-312019-12-31
Value4343
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization2.32.4

musa:RetailGasolineStations


Property
Period End2020-12-312019-12-31
Value11231073
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization60.159.4

us-gaap:Building


Property
Period End2020-12-312019-12-31
Value4844
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization2.62.5

us-gaap:Land


Property
Period End2020-12-312019-12-31
Value609598
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization32.633.1

us-gaap:OtherCapitalizedPropertyPlantAndEquipment


Property
Period End2020-12-312019-12-31
Value4246
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization2.32.6

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization


Property
Period End2020-12-312019-12-31
Value30592886
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization100.0100.0

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization us-gaap:PropertyPlantAndEquipmentByType

musa:PipelineAndTerminalFacilities


Property
Period End2020-12-312019-12-31
Value7977
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization2.62.7

musa:RetailGasolineStations


Property
Period End2020-12-312019-12-31
Value21792034
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization71.370.5

us-gaap:Building


Property
Period End2020-12-312019-12-31
Value6660
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization2.22.1

us-gaap:Land


Property
Period End2020-12-312019-12-31
Value609598
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization19.920.7

us-gaap:OtherCapitalizedPropertyPlantAndEquipment


Property
Period End2020-12-312019-12-31
Value123115
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization4.04.0

us-gaap:RetailRelatedInventoryMerchandise

us-gaap:RetailRelatedInventoryMerchandise


Retail
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value177169152143142133123113109101107981049710410010097959092919494989698979391978896
Percentage of RetailRelatedInventoryMerchandise100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SecuredDebtCurrent us-gaap:CreditFacility

us-gaap:SecuredDebtCurrent

musa:TermFacility


Secured
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value2122252372502502006267778287
Percentage of SecuredDebtCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

musa:TimeBasedRestrictedStockUnits


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value94.8394.6177.3877.5677.4677.4970.58
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0

us-gaap:PerformanceShares


Share
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value117.4297.0197.1997.1996.8382.98
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue124.1125.4125.3125.5125.0117.6

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

us-gaap:PerformanceShares, musa:MurphyUsaTwoThousandThirteenPlan


Share
Period End2020-12-312019-12-312018-12-31
Value97.0182.9876.58
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue125.4117.60.0

us-gaap:PerformanceShares, musa:TwoThousandThirteenLongTermIncentivePlan


Share
Period End2021-06-302020-12-31
Value117.5597.01
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue124.0125.4

us-gaap:RestrictedStockUnitsRSU, musa:TwoThousandThirteenStockPlanForNonEmployeeDirectors


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value99.6299.7983.3183.4683.4685.270.6864.27
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue105.1105.5107.7107.6107.7109.9100.10.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue us-gaap:PlanName

musa:MurphyUsaTwoThousandThirteenPlan


Share
Period End2020-12-312019-12-312018-12-31
Value77.3870.5864.02
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice


Share
Period End2021-06-302021-03-312020-12-312020-09-302018-12-312017-12-312016-12-312015-12-312014-12-31
Value69.969.9266.9166.9164.1742.838.3236.7134.54
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue


Share
Period End2021-06-302021-03-312020-12-312020-09-30
Value16221615
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue100.0100.0100.0100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1


Sharebased
Period End2021-06-302021-03-312020-12-312020-09-302018-12-312017-12-312016-12-312015-12-312014-12-31
Value11147.16.81.2554549.5535415.0686643.0539973.035013
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnamortizedDebtIssuanceExpense

us-gaap:UnamortizedDebtIssuanceExpense


Unamortized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value12124.44.65.05.25.55.73.13.43.84.14.54.85.1555.5025.7915.0885.4075.7276.0466.2393.5263.7063.8384.0164.193
Percentage of UnamortizedDebtIssuanceExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate


Unrecognized
Period End2020-12-312019-12-31
Value300000.0500000.0
Percentage of UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate100.0100.0

us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnFifthAnniversary us-gaap:UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchased

us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnFifthAnniversary

musa:TakeOrPayContracts


Unrecorded
Period End2020-12-31
Value4000000.0
Percentage of UnrecordedUnconditionalPurchaseObligationBalanceOnFifthAnniversary100.0

us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary us-gaap:UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchased

us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary

musa:TakeOrPayContracts


Unrecorded
Period End2020-12-31
Value9100000.0
Percentage of UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary100.0

us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversary us-gaap:UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchased

us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversary

musa:TakeOrPayContracts


Unrecorded
Period End2020-12-31
Value4000000.0
Percentage of UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversary100.0

us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary us-gaap:UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchased

us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary

musa:TakeOrPayContracts


Unrecorded
Period End2020-12-31
Value4000000.0
Percentage of UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary100.0

us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary us-gaap:UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchased

us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary

musa:TakeOrPayContracts


Unrecorded
Period End2020-12-31
Value4000000.0
Percentage of UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary100.0

us-gaap:ValuationAllowancesAndReservesBalance us-gaap:ValuationAllowancesAndReservesType

us-gaap:ValuationAllowancesAndReservesBalance

us-gaap:AllowanceForCreditLoss


Valuation
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value100000.01200000.01100000.01100000.01900000.02000000.0
Percentage of ValuationAllowancesAndReservesBalance100.0100.0100.0100.0100.0100.0

us-gaap:WorkersCompensationLiabilityCurrentAndNoncurrent

us-gaap:WorkersCompensationLiabilityCurrentAndNoncurrent


Workers
Period End2020-12-31
Value27
Percentage of WorkersCompensationLiabilityCurrentAndNoncurrent100.0

Line plots across dimensions of each concept


us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities
(None,)
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amountus-gaap: Antidilutive Securities Excluded From Computation Of Earnings Per Share By Antidilutive Securities
COGS Ratio
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems, us-gaap:ProductOrService
('srt:SubsidiaryIssuer', 'srt:ReportableLegalEntities', None)
C O G S  Ratious-gaap: Consolidated Entities, us-gaap: Consolidation Items, us-gaap: Product Or Service
COGS Ratio
us-gaap:ProductOrService
(None,)
C O G S  Ratious-gaap: Product Or Service
TTM Greenblatt ROC
_
(None,)
T T M  Greenblatt  R O C_
us-gaap:ComprehensiveIncomeNetOfTax
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Comprehensive Income Net Of Taxus-gaap: Consolidated Entities, us-gaap: Consolidation Items
us-gaap:CostOfGoodsAndServicesSold
us-gaap:ProductOrService
(None,)
Cost Of Goods And Services Soldus-gaap: Product Or Service
us-gaap:IncomeLossFromContinuingOperations
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Income Loss From Continuing Operationsus-gaap: Consolidated Entities, us-gaap: Consolidation Items
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Income Loss From Continuing Operations 
Before Income Taxes Extraordinary Items Noncontrolling Interestus-gaap: Consolidated Entities, us-gaap: Consolidation Items
us-gaap:IncomeTaxExpenseBenefit
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Income Tax Expense Benefitus-gaap: Consolidated Entities, us-gaap: Consolidation Items
us-gaap:NetIncomeLoss
us-gaap:ConsolidationItems
(None,)
Net Income Lossus-gaap: Consolidation Items
us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents
(None,)
Net Income Lossus-gaap: Statement Equity Components
us-gaap:NetIncomeLoss
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Net Income Lossus-gaap: Consolidated Entities, us-gaap: Consolidation Items
us-gaap:NetIncomeLoss
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems, us-gaap:StatementEquityComponents
(None, 'srt:ReportableLegalEntities', 'us-gaap:RetainedEarnings')
Net Income Lossus-gaap: Consolidated Entities, us-gaap: Consolidation Items, us-gaap: Statement Equity Components
us-gaap:NonoperatingIncomeExpense
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Nonoperating Income Expenseus-gaap: Consolidated Entities, us-gaap: Consolidation Items
us-gaap:OperatingExpenses
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Operating Expensesus-gaap: Consolidated Entities, us-gaap: Consolidation Items
us-gaap:OperatingIncomeLoss
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Operating Income Lossus-gaap: Consolidated Entities, us-gaap: Consolidation Items
us-gaap:OtherNonoperatingIncomeExpense
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Other Nonoperating Income Expenseus-gaap: Consolidated Entities, us-gaap: Consolidation Items
us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Revenue From Contract With Customer Including Assessed Taxus-gaap: Consolidated Entities, us-gaap: Consolidation Items
us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax
us-gaap:ConsolidationItems
(None,)
Revenue From Contract With Customer Including Assessed Taxus-gaap: Consolidation Items
us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax
us-gaap:ConsolidationItems, us-gaap:ProductOrService
(None, 'musa:RevenueOther')
Revenue From Contract With Customer Including Assessed Taxus-gaap: Consolidation Items, us-gaap: Product Or Service
us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax
us-gaap:ConsolidationItems, us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None, 'musa:MarketingSegment')
Revenue From Contract With Customer Including Assessed Taxus-gaap: Consolidation Items, us-gaap: Product Or Service, us-gaap: Statement Business Segments
us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax
us-gaap:ProductOrService
(None,)
Revenue From Contract With Customer Including Assessed Taxus-gaap: Product Or Service
us-gaap:Assets
us-gaap:ConsolidationItems
(None,)
Assetsus-gaap: Consolidation Items
us-gaap:Assets
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Assetsus-gaap: Consolidated Entities, us-gaap: Consolidation Items
us-gaap:Liabilities
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Liabilitiesus-gaap: Consolidated Entities, us-gaap: Consolidation Items
us-gaap:LiabilitiesAndStockholdersEquity
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Liabilities And Stockholders Equityus-gaap: Consolidated Entities, us-gaap: Consolidation Items
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components
us-gaap:StockholdersEquity
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Stockholders Equityus-gaap: Consolidated Entities, us-gaap: Consolidation Items
us-gaap:AssetsCurrent
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Assets Currentus-gaap: Consolidated Entities, us-gaap: Consolidation Items
us-gaap:CashAndCashEquivalentsAtCarryingValue
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Cash And Cash Equivalents At Carrying Valueus-gaap: Consolidated Entities, us-gaap: Consolidation Items
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalentsus-gaap: Consolidated Entities, us-gaap: Consolidation Items
us-gaap:AccountsReceivableNetCurrent
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Accounts Receivable Net Currentus-gaap: Consolidated Entities, us-gaap: Consolidation Items
us-gaap:AccountsReceivableNetCurrent
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
(None,)
Accounts Receivable Net Currentus-gaap: Accounts Notes Loans And Financing Receivable By Receivable Type
us-gaap:PropertyPlantAndEquipmentNet
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Property Plant And Equipment Netus-gaap: Consolidated Entities, us-gaap: Consolidation Items
us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Investments In Affiliates Subsidiaries Associates And Joint Venturesus-gaap: Consolidated Entities, us-gaap: Consolidation Items
us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Accounts Payable And Accrued Liabilities Currentus-gaap: Consolidated Entities, us-gaap: Consolidation Items
us-gaap:LiabilitiesCurrent
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Liabilities Currentus-gaap: Consolidated Entities, us-gaap: Consolidation Items
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components
us-gaap:StockholdersEquity
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Stockholders Equityus-gaap: Consolidated Entities, us-gaap: Consolidation Items
us-gaap:AdditionalPaidInCapital
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Additional Paid In Capitalus-gaap: Consolidated Entities, us-gaap: Consolidation Items
us-gaap:RetainedEarningsAccumulatedDeficit
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Retained Earnings Accumulated Deficitus-gaap: Consolidated Entities, us-gaap: Consolidation Items
us-gaap:NetCashProvidedByUsedInOperatingActivities
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Net Cash Provided By Used In Operating Activitiesus-gaap: Consolidated Entities, us-gaap: Consolidation Items
us-gaap:NetCashProvidedByUsedInInvestingActivities
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Net Cash Provided By Used In Investing Activitiesus-gaap: Consolidated Entities, us-gaap: Consolidation Items
us-gaap:NetCashProvidedByUsedInFinancingActivities
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Net Cash Provided By Used In Financing Activitiesus-gaap: Consolidated Entities, us-gaap: Consolidation Items
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effectus-gaap: Consolidated Entities, us-gaap: Consolidation Items
us-gaap:NetCashProvidedByUsedInOperatingActivities
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Net Cash Provided By Used In Operating Activitiesus-gaap: Consolidated Entities, us-gaap: Consolidation Items
us-gaap:NetIncomeLoss
us-gaap:ConsolidationItems
(None,)
Net Income Lossus-gaap: Consolidation Items
us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents
(None,)
Net Income Lossus-gaap: Statement Equity Components
us-gaap:NetIncomeLoss
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Net Income Lossus-gaap: Consolidated Entities, us-gaap: Consolidation Items
us-gaap:NetIncomeLoss
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems, us-gaap:StatementEquityComponents
(None, 'srt:ReportableLegalEntities', 'us-gaap:RetainedEarnings')
Net Income Lossus-gaap: Consolidated Entities, us-gaap: Consolidation Items, us-gaap: Statement Equity Components
us-gaap:NetCashProvidedByUsedInInvestingActivities
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Net Cash Provided By Used In Investing Activitiesus-gaap: Consolidated Entities, us-gaap: Consolidation Items
us-gaap:PaymentsToAcquireProductiveAssets
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Payments To Acquire Productive Assetsus-gaap: Consolidated Entities, us-gaap: Consolidation Items
us-gaap:NetCashProvidedByUsedInFinancingActivities
us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
(None, 'srt:ReportableLegalEntities')
Net Cash Provided By Used In Financing Activitiesus-gaap: Consolidated Entities, us-gaap: Consolidation Items