WERN


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

Table of contents



us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted
us-gaap:AwardType
us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:ComprehensiveIncomeNetOfTax
us-gaap:StatementEquityComponents

us-gaap:CostsAndExpenses

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxesPaidNet

us-gaap:InterestExpense

us-gaap:InterestPaidNet

us-gaap:NetIncomeLoss

us-gaap:NonoperatingIncomeExpense

us-gaap:OperatingIncomeLoss
us-gaap:StatementBusinessSegments

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:Revenues
us-gaap:StatementBusinessSegments
us-gaap:StatementGeographical

us-gaap:Assets

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:AssetsCurrent

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:AccountsReceivableNetCurrent

us-gaap:InventoryNet

us-gaap:OtherAssetsCurrent

us-gaap:Land

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:PropertyPlantAndEquipmentNet
us-gaap:StatementGeographical

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent

us-gaap:AccountsPayableCurrent

us-gaap:AccruedIncomeTaxesCurrent

us-gaap:AccruedLiabilitiesCurrent

us-gaap:LiabilitiesCurrent

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OtherLiabilitiesCurrent

us-gaap:DeferredTaxLiabilitiesNoncurrent

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:TreasuryStockValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

us-gaap:DeferredTaxLiabilities

us-gaap:UnrecognizedTaxBenefits
us-gaap:AwardType
us-gaap:AllocatedShareBasedCompensationExpenseNetOfTax
wern:Acquiree
us-gaap:BusinessCombinationConsiderationTransferred1

us-gaap:CapitalExpendituresIncurredButNotYetPaid

us-gaap:CommonStockDividendsPerShareDeclared

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:Depreciation

us-gaap:DirectCommunicationsAndUtilitiesCosts

us-gaap:DirectOperatingMaintenanceSuppliesCosts

us-gaap:DirectTaxesAndLicensesCosts

us-gaap:DividendsCommonStockCash
us-gaap:StatementEquityComponents

us-gaap:EffectOfExchangeRateOnCashAndCashEquivalents
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense

us-gaap:EquitySecuritiesFvNiUnrealizedGain
wern:Investee

us-gaap:FuelCosts

us-gaap:GainLossOnSaleOfPropertyPlantEquipment

us-gaap:IncreaseDecreaseInAccountsPayableTrade

us-gaap:IncreaseDecreaseInFairValueOfInterestRateFairValueHedgingInstruments1

us-gaap:IncreaseDecreaseInOtherCurrentAssets

us-gaap:IncreaseDecreaseInOtherCurrentLiabilities

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:InvestmentIncomeInterest

us-gaap:LaborAndRelatedExpense

us-gaap:LeaseCost

us-gaap:NotesIssued1

us-gaap:OperatingInsuranceAndClaimsCostsProduction

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeaseLeaseIncome

us-gaap:OperatingLeasePayments

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax

us-gaap:OtherCostAndExpenseOperating

us-gaap:OtherOperatingActivitiesCashFlowStatement

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsToAcquireAdditionalInterestInSubsidiaries

us-gaap:ProceedsFromCollectionOfNotesReceivable

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

us-gaap:RepaymentsOfLinesOfCredit

us-gaap:RepaymentsOfLongTermLinesOfCredit
us-gaap:LineOfCreditFacility, us-gaap:SubsequentEventType

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue

us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensation
wern:Acquiree
us-gaap:SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions

us-gaap:TreasuryStockSharesAcquired

us-gaap:TreasuryStockValueAcquiredCostMethod
us-gaap:StatementEquityComponents

wern:IncreaseDecreaseInSelfInsuranceReservesNoncurrent

wern:PropertyAndEquipmentDisposedIncludedInOtherReceivables

wern:RentAndPurchasedTransportation

wern:ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberofSharesAwardedPerEmployeePerYear

wern:StockIssuedDuringPeriodValueStockOptionsExercisedAndTaxEffect
us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AociDerivativeQualifyingAsHedgeExcludedComponentAfterTax

us-gaap:BuildingsAndImprovementsGross

us-gaap:ContractWithCustomerAssetNet

us-gaap:ContractWithCustomerLiability

us-gaap:DeferredCompensationLiabilityClassifiedNoncurrent

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesPrepaidExpenses

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment
us-gaap:LineOfCreditFacility
us-gaap:DerivativeFixedInterestRate

us-gaap:DividendsPayableCurrentAndNoncurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
wern:Investee
us-gaap:EquitySecuritiesFVNINoncurrent

us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueAmount
us-gaap:AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyType
us-gaap:FinancingReceivableAllowanceForCreditLosses

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:LessorOperatingLeasePaymentsToBeReceived

us-gaap:LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths

us-gaap:LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear

us-gaap:LessorOperatingLeasePaymentsToBeReceivedThreeYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedTwoYears

us-gaap:LettersOfCreditOutstandingAmount
wern:EmployeeBenefits

us-gaap:LifeInsuranceCorporateOrBankOwnedAmount

us-gaap:LineOfCredit
us-gaap:LineOfCreditFacility
us-gaap:LineOfCreditFacility
us-gaap:LineOfCreditFacilityInterestRateAtPeriodEnd

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
us-gaap:LineOfCreditFacility

us-gaap:LinesOfCreditCurrent
us-gaap:AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyType
us-gaap:LoansAndLeasesReceivableGrossCarryingAmount

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo

us-gaap:LongTermLineOfCredit
us-gaap:LossContingenciesByNatureOfContingency
us-gaap:LossContingencyEstimateOfPossibleLoss

us-gaap:MinorityInterestOwnershipPercentageByNoncontrollingOwners

us-gaap:NotesAndLoansReceivableGrossCurrent

us-gaap:NotesAndLoansReceivableGrossNoncurrent
us-gaap:AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyType
us-gaap:NotesAndLoansReceivableNetCurrent
us-gaap:AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyType
us-gaap:NotesAndLoansReceivableNetNoncurrent

us-gaap:NotesReceivableGross
us-gaap:AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyType
us-gaap:AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyType
us-gaap:NotesReceivableNet

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OtherReceivables

us-gaap:PropertyPlantAndEquipmentOther
us-gaap:PropertyPlantAndEquipmentByType
us-gaap:PropertyPlantAndEquipmentSalvageValuePercentage

us-gaap:PurchaseCommitmentRemainingMinimumAmountCommitted

us-gaap:SelfInsuranceReserveCurrent

us-gaap:SelfInsuranceReserveNoncurrent
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
us-gaap:ValuationAllowancesAndReservesType
us-gaap:ValuationAllowancesAndReservesBalance
us-gaap:RelatedPartyTransactionsByRelatedParty
wern:LeaseholdImprovementstoLandTotalCost
us-gaap:RelatedPartyTransactionsByRelatedParty
wern:LeaseholdImprovementstoLandTotalCostLessAccumulatedDepreciation

wern:PrepaidTaxesLicensesAndPermits

wern:RevenueEquipmentGross

wern:SelfInsuranceRetentionLiability

Plots across concepts


IncomeStatement
Other Comprehensive Income Loss Net Of Tax
Expenses
Other Nonoperating Income Expense
Balance Sheet
Operating Lease Right Of Use Asset
Assets
Operating Lease Right Of Use Asset
Current Assets
Inventory Net
NonCurrent Assets
Operating Lease Right Of Use Asset
PropertyPlantAndEquipmentNet
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
Liabilities
Dividends Payable Current And Noncurrent
Current Liabilities
Operating Lease Liability Current
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 Investing Activities
NetCashProvidedByUsedInOperatingActivities
Share Based Compensation
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInFinancingActivities
Payments For Repurchase Of Common Stock
Shares
Weighted Average Number Of Shares Outstanding Basic
DividendsAndRepurchase
Payments For Repurchase Of Common Stock
OperatingLeaseLiability
Operating Lease Liability Current
NonoperatingIncomeExpense
Other Nonoperating Income Expense
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Undiscounted Excess Amount
AccountsReceivable
Allowance For Doubtful Accounts Receivable Current

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding ▁█68.21668.223NA69.44969.43569.609NA69.669.89370.572NA71.75272.37672.671NA72.60172.49272.447NA72.40672.36672.353NA72.47872.42472.542NA72.36472.59773.169NA73.21673.59873.782NA73.44573.41273.39NA73.23173.23973.138NA72.92272.76772.545
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic ▁█67.92667.932NA69.09769.09369.253NA69.19869.59370.274NA71.43672.14472.435NA72.29872.22772.191NA72.05872.04872.025NA71.8971.94572.067NA71.83772.09172.676NA72.62173.02273.26NA72.87972.85972.854NA72.81172.79472.704NA72.54972.2872.001
us-gaap:EarningsPerShareBasic ▅▃▄▃▃▂▃▃▃▂▃▃▂▂█▂▂▁▂▁▁▂▂▂▂▂▂▂▂▁▂▂▂▁▂▂▂▂▂▂▂▁▂▂▂▁1.060.680.880.670.570.330.70.560.620.510.770.670.530.381.950.310.320.220.30.260.250.280.510.450.440.320.450.360.360.20.310.290.350.240.360.340.420.290.40.410.380.220.330.330.290.15
us-gaap:EarningsPerShareDiluted ▅▃▄▃▃▂▃▃▃▂▃▃▂▂█▂▂▁▂▁▁▂▂▂▂▂▂▂▂▁▂▂▂▁▂▂▂▂▂▂▂▁▂▂▂▁1.060.680.880.670.560.330.70.560.620.510.770.660.530.381.940.310.320.220.30.260.250.280.510.440.440.320.450.360.350.20.30.290.350.240.350.340.420.290.40.40.380.220.330.330.290.15
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 Operating Margin us-gaap:StatementBusinessSegments wern:OtherSegment█▇▇▇▆▇▇██▇▇▇▇▆▇█▇█▇▇▇▆▆▇▇▇▆█▆▂▂▂▁▁▁▁▂▁▂▂▂▁▁▁▁16.72515.39914.73714.15613.31515.06814.38615.89616.09615.47214.11515.10714.42213.25915.48816.0215.12716.1113.91414.80415.16613.17812.51614.08713.92413.98513.47316.86812.2583.9893.8473.3682.0832.0442.3722.8723.4813.0573.1823.2743.2342.6772.5382.2622.735NA
 Operating Margin us-gaap:StatementBusinessSegments wern:TruckloadTransportationServicesSegment█▆▇▆▅▆█▇▇▆█▇▇▄▅▃▃▂▂▂▁▁▄▄▄▂▅▄▄▃▄▃▃▃▄▄▄▄▄▄▅▃▃▂▂491.2462.949475.037458.256445.053464.863486.575480.351479.959462.891494.708484.782470.277431.556439.173407.566403.502385.003397.503384.312379.249372.917419.435417.861417.015390.563440.943428.619429.39403.185423.412412.673412.869408.9428.968420.003432.888417.49424.11428.565439.944402.346400.078395.417394.563NA
 Operating Margin us-gaap:StatementBusinessSegments wern:ValueAddedServicesSegment██▇▆▅▅▆▆▇▆█▇▇▆▅▅▅▄▅▅▅▄▄▅▅▄▄▅▄▃▄▄▄▃▃▃▃▂▃▂▂▁▁▁▁141.673137.853130.113117.351110.163112.164120.145121.331130.883117.37137.224129.422134.012117.42112.414104.568100.80499.853107.171109.459103.96596.57796.715102.149103.4590.8698.5106.49100.50185.15491.23496.45591.18582.5177.66582.4984.02476.75479.67476.63571.22763.57359.83464.68365.066NA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 TTM Greenblatt ROC _ _▇▆█▆▅▂▆▅▅▄▇▆▄▂▄▃▃▁▂▂▂▂▅▅▄▃▅▃▃▁▃▂▃▂▃▃▄▂▄▄▄▁▃76.86362.47181.45162.10352.81831.06665.65453.35758.44248.01974.93163.38650.78335.11545.06135.87436.91325.97234.95629.07429.55332.48757.26152.852.2138.18552.62741.6942.3323.44136.08932.58342.36128.69343.12441.80551.11335.40249.39950.06646.76727.44240.627NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 us-gaap:AllocatedShareBasedCompensationExpense us-gaap:AwardType us-gaap:PerformanceShares▇▆█▇▃▇▅▅▇▆▆▇▆▅▅▄▄▄▁▅▅▁▆▃▆▆▅▅▄▄▃▃▃▃1.2090.9461.3541.0860.0531.010.5790.681.0010.8960.8330.9920.8420.4850.5620.3080.3060.283-0.4610.5170.53-0.4190.866-0.060.9530.7550.6740.4680.4310.2860.00.00.00.0NANANANANANANANANANANANA
 us-gaap:AllocatedShareBasedCompensationExpense us-gaap:AwardType us-gaap:RestrictedStock███▇▆▇▆▇▇▆▆▆▆▅▅▅▅▄▄▅▅▂▁▁▆▆▆▆▆▆▆▆▇▇▆▆▆▆1.5381.5491.5461.3751.091.3981.1571.311.3131.1631.0521.0281.1270.9360.8040.9410.8660.6330.5940.8130.80.13-0.074-0.0921.0241.0171.0371.0221.080.9951.0961.1731.2231.2351.1381.0381.0271.02NANANANANANANANA
us-gaap:ComprehensiveIncomeNetOfTax ▅▃▄▃▃▁▃▃▃▃▃▃▃▂█▂▂▂▂▂▁▂▃▂▂▂▂▂▂▁▂▂▂▂▂▂▂▂▂▂▂▁74.25746.22766.45247.51539.4387.56851.41336.53943.73836.59952.14949.5335.82130.41138.67721.9924.62418.6821.48318.28516.09419.41336.90629.42731.47422.21929.28124.55425.72214.34921.83521.30824.69318.47425.72726.0329.86122.4328.85827.61427.69416.841NANANANA
us-gaap:CostsAndExpenses █▇▇▆▆█▇██▇███▆▆▅▄▄▄▄▄▃▄▄▄▃▅▅▅▄▄▄▃▃▄▃▄▃▃▃▄▂▂▂▂▁572.951553.975538.851528.111516.141561.637556.133564.907569.091548.098571.434566.349568.347527.569522.304492.769482.595475.249483.876479.602469.128450.315471.522481.648482.434457.469500.559510.271499.79468.581481.831479.145464.287464.194466.57464.699470.699462.974458.538459.521469.13441.987422.587423.117427.923406.811
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments █▅▇▅▄▂▅▄▅▄▆▅▄▂▃▃▃▂▂▂▂▂▅▄▄▃▄▃▃▁▃▂▃▂▃▃▄▃▄▄▄▂▃▃▃▁96.63361.88881.14361.48452.01130.05664.12451.65857.94448.1874.53263.12150.90835.3245.42736.0637.01326.05735.17929.33430.00932.93857.70453.01752.18938.25152.75642.12142.89923.99836.65433.10642.88729.06443.66542.23251.56335.70649.98850.34646.83927.73341.04740.65635.93118.603
us-gaap:IncomeTaxExpenseBenefit █▇█▇▇▇▇▇▇▇█▇▇▇▁▇▇▇▇▇▇▇███▇███▇▇▇█▇███▇███▇██▇▇24.60115.39620.58715.15212.8796.99815.62812.61414.62612.09419.96915.60712.6447.513-95.70713.54313.79410.03813.36810.41411.70312.84621.05620.94120.34115.10920.04716.15117.2679.65914.47911.84717.04711.55317.68417.10420.88314.46120.6220.76819.32111.4416.93216.49815.0017.767
us-gaap:IncomeTaxesPaidNet █▁▄▇▁▁▂▂▇▁▂▁▂▁▂▃▂▁▁▁▂▁▁▄▄▁▄▄█▁▃▃▇▂▄▅▅▁▂▂▃▂▂▄▆▁39.5110.53617.29333.8882.3810.6118.5614.23336.2490.5565.0230.8695.1620.3016.26911.3514.090.3780.4160.0193.151.0881.00416.33916.3951.46717.77916.48941.2371.34411.60913.65836.9853.7818.64423.13225.0991.0934.9383.52314.65.7415.02820.11229.771.14
us-gaap:InterestExpense ▃▃▃▄▄▆▇█▅▃▃▄▂▂▂▂▃▃▃▃▃▂▂▂▃▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁0.7010.8380.5760.8871.1611.5912.1592.4081.4290.8580.8530.870.490.4820.3510.4920.6240.7760.7380.7490.5960.4940.4050.5110.5830.4750.5110.140.1360.0940.1180.1010.0910.1440.0630.0180.0650.1420.0420.0050.010.0280.030.0050.0030.009
us-gaap:InterestPaidNet ▂▂▁▂▃▅▆█▃▂▃0.7050.8780.5330.8861.1851.8112.082.5310.9660.8640.991NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss ▄▃▄▃▃▂▃▃▃▂▃▃▂▂█▂▂▁▂▁▁▁▂▂▂▂▂▂▂▁▂▂▂▁▂▂▂▂▂▂▂▁▂▂▂▁72.03246.49260.55646.33239.13223.05848.49639.04443.31836.08654.56347.51438.26427.807141.13422.51723.21916.01921.81118.9218.30620.09236.64832.07631.84823.14232.70925.9725.63214.33922.17521.25925.8417.51125.98125.12830.6821.24529.36829.57827.51816.29324.11524.15820.9310.836
us-gaap:NonoperatingIncomeExpense █▁▁▁▁▁▁▁▁▂▁▁▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂19.77-0.583-0.308-0.619-0.807-1.01-1.53-1.699-0.4980.161-0.399-0.2650.1250.2050.3660.1860.10.0850.2230.260.4560.4510.4430.217-0.0210.0660.1290.4310.5690.5570.5650.5230.5260.3710.5410.4270.450.3040.5890.280.0720.2910.420.5110.3850.339
us-gaap:OperatingIncomeLoss ▇▆█▆▅▂▆▅▅▄▇▆▅▃▄▃▃▂▃▂▂▃▅▅▅▃▅▄▄▂▃▃▄▂▄▄▅▃▄▅▄▂▃▃▃▁76.86362.47181.45162.10352.81831.06665.65453.35758.44248.01974.93163.38650.78335.11545.06135.87436.91325.97234.95629.07429.55332.48757.26152.852.2138.18552.62741.6942.3323.44136.08932.58342.36128.69343.12441.80551.11335.40249.39950.06646.76727.44240.62740.14535.54618.264
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax ▆▅█▆▆▁▆▅▆▆▄▆▄▇▄▅▆▇▅▅▅▆▅▅▅▅▄▅▆▆▅▆▅▆▅▆▅▆1.865-1.5685.3150.7820.929-9.8931.917-1.0650.5260.618-2.2922.011-2.5372.325-2.722-0.6271.3852.447-1.182-1.023-2.0420.056-0.352-2.044-0.698-0.836-2.679-0.9850.090.01-0.340.049-1.1470.963-0.2540.902-0.8191.185NANANANANANANANA
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▇▆█▆▆▁▇▅▆▆▅▇▅▇▅▆▇▇▆▆▅▆▆▅▆▆▅▆▆▆▆▆▆▆▆▆▆▆2.225-0.2655.8961.1830.306-15.492.917-2.5050.420.513-2.4142.016-2.4432.603-2.457-0.5271.4052.661-0.328-0.635-2.212-0.6790.258-2.649-0.374-0.923-3.428-1.4160.090.01-0.340.049-1.1470.963-0.2540.902-0.8191.185NANANANANANANANA
us-gaap:OtherNonoperatingIncomeExpense ▄▄▄▄▅▄▄▄▄▇▂▄▄▄▄▄▃▄▄▄▄▄▆▄▃▄▅▄▆▅▆▅▆▅▆▅▆▅█▄▁▅▅▆▅▅-0.054-0.042-0.04-0.055-0.023-0.045-0.049-0.047-0.0580.116-0.204-0.041-0.078-0.053-0.035-0.088-0.152-0.053-0.043-0.046-0.057-0.0450.061-0.032-0.135-0.090.031-0.0430.045-0.0040.0430.0350.0820.010.083-0.0160.0820.0240.21-0.052-0.263-0.0260.0380.0840.0330.011
us-gaap:Revenues █▇▇▆▅▆▇▇▇▆█▇▇▅▅▄▄▃▄▄▃▃▄▄▄▃▅▅▅▃▄▄▄▃▄▄▄▃▄▄▄▂▂▂▂▁649.814616.446620.302590.214568.959592.703621.787618.264627.533596.117646.365629.735619.13562.684567.365528.643519.508501.221518.832508.676498.681482.802528.783534.448534.644495.654553.186551.961542.12492.022517.92511.728506.648492.887509.694506.504521.812498.376507.937509.587515.897469.429463.214463.262463.469425.075
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:Assets █▇▇▇▆▆▇▇▇▆▆▆▆▅▅▄▄▄▅▄▄▄▄▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁2382.8672229.5262156.6762140.1362079.7132088.8982143.8642163.5392128.6172118.8322083.5042033.1361971.2541822.0451807.9911762.9411731.4551745.6681793.0031726.3791726.8671609.5651613.6841571.9721543.4151518.5241480.4621449.3811390.871372.6091354.0971351.0931320.4481322.9741334.91346.3321325.561324.4231302.4161269.2761223.1351190.4471151.552NANANA
us-gaap:LiabilitiesAndStockholdersEquity █▇▇▇▆▆▇▇▇▆▆▆▆▅▅▄▄▄▅▄▄▄▄▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁2382.8672229.5262156.6762140.1362079.7132088.8982143.8642163.5392128.6172118.8322083.5042033.1361971.2541822.0451807.9911762.9411731.4551745.6681793.0031726.3791726.8671609.5651613.6841571.9721543.4151518.5241480.4621449.3811390.871372.6091354.0971351.0931320.4481322.9741334.91346.3321325.561324.4231302.4161269.2761223.1351190.4471151.552NANANA
us-gaap:StockholdersEquity █▇▇▇▆▆▆▅▅██▇▇▇▇▅▅▅▅▄▄▄▄▄▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁1296.5831227.731195.041180.1371136.3881102.0361111.0081064.8041032.3441275.3891264.7531243.5011221.5611213.1041184.7821050.9071031.531010.384994.787978.46963.136949.97935.654903.24878.24854.765833.86804.47787.011775.023772.519752.678738.881731.075714.897796.166772.786745.241725.147735.306710.234685.005668.975NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AssetsCurrent █▅▄▄▄▄▄▄▄▄▄▃▃▃▃▃▂▂▂▃▂▂▃▃▃▃▃▃▃▃▂▂▂▂▁▂▁▁▂▂▂▂▁666.511532.909456.916464.121431.587459.643466.334436.325453.301455.454456.658419.847413.967411.267400.229381.472347.067369.817373.128377.857348.588343.778407.539400.833416.072425.594426.344414.108390.526398.68349.661348.782347.866327.874319.187328.68323.427318.193341.331366.742334.877350.888297.699NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue █▄▂▂▃▃▂▁▂▃▂▁▁▂▁▁▁▂▁▁▁▁▂▂▂▃▁▂▂▃▂▁▂▁▁▁▁▁▁▃▂▂▁▄▄▃192.12883.1329.33440.47665.38972.23726.41814.35446.4264.74233.939.659.92438.78913.62610.73322.6130.80416.96213.73615.23720.4131.83345.92147.49159.26322.60447.59827.71456.46823.67817.3524.24819.52915.42818.03718.18412.07212.41256.88523.48347.59913.96694.84879.19373.059
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents █▄▂▂▃▄▂▁▂▃▂▁▁▂▁▁▂192.12883.1329.33440.47665.38979.26133.44214.35446.4264.74233.939.659.92438.78915.13117.53129.157NA17.477NANANA35.082NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AccountsReceivableNetCurrent █▆▆▆▅▅▆▆▆▅▆▆▆▅▅▄▃▃▃▃▃▃▃▃▃▃▄▄▃▃▂▃▂▂▂▂▂▂▂▂▂▂▁391.082347.902341.104337.897299.383310.9322.846323.375331.239313.524337.927324.911333.134301.967304.174279.716250.402247.035261.372252.512239.108235.763251.023250.878258.823246.353266.727264.406261.305244.294231.647236.858223.99219.01211.133217.758219.635213.201218.712213.505213.25210.565190.264NANANA
us-gaap:InventoryNet ▂▂▂▁▁▁▁▂▂▁▂▂▂▂▂▂▂▂▂▃▃▃▄▄▄▄▄▃▃▃▃▄▅▆▆▆▇▇█▇▆▅▄11.89911.91912.0629.3548.7138.1519.2439.7510.2829.67410.0611.80511.59610.6211.69411.62411.58912.31412.76814.44614.82315.6716.41516.35516.75617.4917.82415.16715.08814.51915.74317.74520.24922.52823.2625.17226.0727.98330.21228.39924.97321.20116.868NANANA
us-gaap:OtherAssetsCurrent ▄▃▄▅▃▄▄▄▄▃▃▄▃▃▃▄▃▄▃█▃▃▃▃▃▂▃▃▃▄▃▄▄▂▂▂▁▁▃▃▃▂▂38.31232.71933.69440.12926.14233.02338.84937.13733.71731.89431.57738.59531.83130.82427.08338.89830.97937.26129.98763.56827.53227.50427.28128.93626.82725.2526.45831.52232.24834.8527.44534.66736.22521.22921.3323.76815.90718.87829.88327.31926.20421.84223.407NANANA
us-gaap:Land NANA72.103NANANA63.244NANANA59.103NANANA56.3NANANA56.261NANANA34.356NANANA32.213NANANA31.445NANANA31.62NANANA30.242NANANA30.092NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:PropertyPlantAndEquipmentGross █████▇▇█▇▇▇▇▆▆▆▅▅▅▅▅▅▄▄▄▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁2428.2682410.7912405.3352384.5372368.5432325.6152343.5362384.2542312.5942290.8022247.5772249.9112187.8962126.3072114.3372078.2292077.0512067.5552109.9912011.8882057.9861951.2581908.61885.5321850.8261820.7031786.2291764.9721724.9631705.5811727.7371712.6271671.281688.7151690.491689.9271666.9431673.9611625.0081581.121577.0671538.0171549.637NANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment █▇▇▇▇▆▅▅▄▄▄▄▄▄▄▄▃▃▃▃▃▃▃▄▄▄▄▄▄▄▃▃▂▂▁▁▁▁▁▁▂▂▂893.453873.449862.077857.106868.379846.871817.26808.906787.214776.863760.015781.262773.28776.125767.474758.331746.822744.181747.353728.503743.768750.068754.13761.2766.34770.417772.447771.188762.991758.892750.219736.984721.8715.878696.647691.418686.737689.686682.872693.694701.289710.609708.582NANANA
us-gaap:PropertyPlantAndEquipmentNet ████▇▇███▇▇▇▆▆▆▆▆▆▆▅▆▄▄▄▃▃▃▃▂▂▂▂▂▂▃▃▂▂▂▂▁▁▁1534.8151537.3421543.2581527.4311500.1641478.7441526.2761575.3481525.381513.9391487.5621468.6491414.6161350.1821346.8631319.8981330.2291323.3741362.6381283.3851314.2181201.191154.471124.3321084.4861050.2861013.782993.784961.972946.689977.518975.643949.48972.837993.843998.509980.206984.275942.136887.426875.778827.408841.055NANANA
us-gaap:OperatingLeaseRightOfUseAsset ▅▁▄█9.9779.5069.95110.417NANA11.3769.8837.917.987NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent █▇▇▇▇▇▇▇▇▇▆▆▆▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁181.541159.275156.502148.584147.962150.511151.254151.866149.936149.439139.284144.64142.67160.59660.89961.57154.15952.47757.23765.13764.06164.59751.67546.80742.85742.64440.33641.48938.37227.2426.91826.66823.10222.26321.8719.14321.92721.95518.94915.10812.4812.15112.798NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AccountsPayableCurrent ▆█▄▇▄▅▆▅▅▆▆▅▅▄▃▃▃▂▂▃▅▄▃▄▅▃▂▅▅▃▂▃▃▂▁▃▄▅▆▂▂▂▁94.367113.06483.263104.04184.26387.69894.63489.34892.71399.72597.78190.01391.91683.29573.80272.34370.71763.54666.61872.73585.54778.06970.64383.43687.98172.56564.82789.07384.90270.18766.67875.07769.33962.72456.39774.21677.15387.91493.48667.83166.04664.51957.708NANANA
us-gaap:AccruedIncomeTaxesCurrent NA19.2267.824NA15.706NA0.0NANA18.1376.693NANANANANANANANANANANANANANANANANANANANANANA14.4911.544NANANANANANANANANANANA
us-gaap:AccruedLiabilitiesCurrent █▃▁25.97225.3525.032NANANA11.072NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LiabilitiesCurrent ▅▇▆▅▄▇▇█▄█▇▇▄▃▄▃▂▃▃▂▃▂▂▃▃▂▂▃▂▂▁▂▁▂▁▁▁▂▂▁▁▁▁259.187307.761274.014256.208249.623304.671308.84331.921228.57322.599310.36297.877228.217211.797232.177214.284198.912207.063214.861194.313211.933190.64183.702209.886203.779198.25186.53206.787194.745190.498167.731181.387169.299180.775176.193177.428178.772201.795198.825176.249169.942177.657168.44NANANA
us-gaap:OperatingLeaseLiabilityCurrent ▃▇█▁3.363.4083.4213.327NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesCurrent ▃▁▇▇▆██▇▆▆▇▆▃▅▅▄▄▁▂▂▂▄▄▆▃▃▃▃▃▇▂▂▂▂▃▃▄▅▁▂▁▂▃20.10717.11228.20828.25826.59831.33631.04928.86527.94226.44830.00426.75721.63124.09524.64222.93822.30917.018.6518.24918.00621.89223.7228.09521.44520.23319.76820.38820.29230.16218.45718.87318.39418.84920.98319.90223.01724.28616.50419.11917.20319.34620.037NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:DeferredTaxLiabilitiesNoncurrent NANA237.87NANANA249.669241.433234.282233.745233.45221.552212.492201.539195.187301.199300.082296.197292.769271.206269.012252.187274.301232.878237.911240.265241.606212.632217.779221.44227.237224.865228.069226.833232.531236.232237.978239.736243.0226.764214.302201.841190.507NANANA
us-gaap:DeferredIncomeTaxLiabilitiesNet █▃▁▅▄▄▆253.259241.7237.87245.632244.545244.814249.669NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesNoncurrent ▇▇▇█▆▄▃▃▂▂▁▁▁▁▁▂▂▂▂▂▃▃▃▃▂▃▃▃▃▂▂▂▂▂▂▂▂▂▂▁▁▁▁42.56841.48543.11448.36239.33828.18621.12920.51117.42417.12910.91111.64611.94512.04512.57514.32115.32116.06416.71118.27521.06120.82319.83221.07317.9421.39920.02119.66719.08514.94814.7113.96316.79916.34115.77915.30615.07414.90114.19410.70710.90710.69410.38NANANA
us-gaap:OperatingLeaseLiabilityNoncurrent ▅▁▄█7.126.5586.9497.46NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo ▄▂▁█3.152.9342.7723.546NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree ▅▂▁█2.2611.911.7482.622NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour █▃▁▅1.8641.5071.4041.635NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive ▇▁▁█1.3330.9690.9691.404NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive ▂▁▁█0.640.4730.4731.442NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:StockholdersEquity █▇▇▇▆▆▆▅▅██▇▇▇▇▅▅▅▅▄▄▄▄▄▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁1296.5831227.731195.041180.1371136.3881102.0361111.0081064.8041032.3441275.3891264.7531243.5011221.5611213.1041184.7821050.9071031.531010.384994.787978.46963.136949.97935.654903.24878.24854.765833.86804.47787.011775.023772.519752.678738.881731.075714.897796.166772.786745.241725.147735.306710.234685.005668.975NANANA
us-gaap:AdditionalPaidInCapitalCommonStock █▇█▇▆▆▇▇▆▅▅▅▅▄▄▄▄▄▄▄▄▄▄▅▅▄▄▄▄▃▃▃▃▃▃▃▂▂▂▂▁▁▁117.069114.588116.039114.074111.634110.695112.649112.064110.102107.928107.455106.904104.799102.904102.563103.296102.553101.587101.035103.648102.489101.217102.734104.619104.909102.967101.803102.792101.41999.97398.534100.16499.68198.40397.45797.40496.62895.52494.39693.6893.02992.51691.872NANANA
us-gaap:RetainedEarningsAccumulatedDeficit █▇▇▇▆▆▆▆▅▇▇▆▆▆▆▄▄▄▄▄▄▄▄▃▃▃▃▂▂▂▂▂▂▁▁▂▂▂▁▂▁▁▁1542.4971478.6161438.9161384.4741344.3611311.4481294.6081252.3441219.5291443.5421413.7461365.5231324.4161292.6181267.8711131.8051114.3511096.191084.7961067.3151052.7181038.7361022.966990.638962.876934.622915.085885.978863.596841.561830.842812.302794.669772.464758.617846.116824.633797.596779.994790.685764.748740.87728.216NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▃▃▃▁▁▁▅▄▅▅▅▅▅▅▅▅▅▅▄▄▅▅▅▅▆▆▆▇████████▇█▇████-20.873-23.098-22.833-28.729-29.912-30.218-14.728-17.645-15.14-15.56-16.073-13.659-15.675-13.232-15.835-13.378-12.851-14.256-16.917-16.589-15.954-13.742-13.063-13.321-10.672-10.298-9.375-5.947-4.531-4.621-4.631-4.291-4.34-3.193-4.156-3.902-4.804-3.985-5.17-4.66-2.696-2.872-3.42NANANA
us-gaap:TreasuryStockValue ███▆▆▆▆▆▆▅▅▄▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁342.915343.181337.887290.487290.5290.694282.326282.764282.952261.326241.18216.072192.784169.991170.622171.621173.328173.942174.932176.719176.922177.046177.788179.501179.678173.331174.458179.158174.278162.695153.031156.302151.934137.404137.826144.257144.476144.699144.878145.204145.652146.314148.498NANANA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue █▁2.7472.502NA2.4591.1382.406NA1.9812.3142.051NA2.1181.9791.41NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▂▇▅▃█▇▅▆▄▇▆▆▄▅▃▂▅▄▆▁▄▄▄▄▃▆▂▄▁▃▃▃▁▄▂▃▂▄▃▄▃▂▃▂▂▃53.597135.86799.51359.054153.966133.37694.459111.84981.567138.769115.646120.06282.58999.86264.8944.48797.51474.947111.22230.15379.70391.31987.6289.272.586120.98641.35474.66631.33659.20961.36660.18334.30276.60656.38159.91754.79983.99964.14183.30963.2353.873.23643.83146.45464.962
us-gaap:NetCashProvidedByUsedInInvestingActivities ▅▆▄▅▄██▃▅▅▆▃▃▆▅▆▆█▂▇▁▄▄▄▅▄▅▄▆█▆▅█▇▆▆▇▄▅▆▄▇▇▇▆█-63.314-41.291-82.289-77.769-86.693-16.524-9.897-106.564-75.91-79.938-54.63-110.336-116.846-49.562-73.34-55.983-47.097-7.388-130.247-27.778-154.02-98.209-96.393-86.935-71.13-81.088-64.44-80.973-44.794-13.28-41.864-68.304-10.981-19.109-40.672-56.578-37.629-81.926-75.462-46.27-84.329-18.783-34.536-29.713-40.437-9.648
us-gaap:NetCashProvidedByUsedInFinancingActivities █▃▄▄▂▂▃▃▄▄▃▄▅▄▅▅▃▃▅▄▇▄▄▄▄▄▄▅▄▄▄▅▄▃▄▄▄▄▄▄▄▄▁▅▅▄118.208-40.361-29.554-6.225-81.223-68.96-65.838-37.157-24.16-28.064-36.151-10.1645.748-27.04511.873-0.254-58.888-54.14722.13-3.55169.571-4.78-5.24-3.559-13.112-3.081-1.59626.382-15.289-13.165-12.9651.241-18.205-53.595-18.206-3.79-10.834-2.721-33.067-3.271-3.002-1.413-119.5420.6810.622-1.035
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect █▅▂▁▂▅▄▁▂▄▄▃▁▄▂▂108.99853.796-11.142-24.913-13.87245.81919.088-32.066-18.32230.81224.28-0.274-28.86523.658-2.4-11.626NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:DeferredIncomeTaxExpenseBenefit ▇▆▆▆▆▆▆▆▆▆▇▆▇▆▁▆▆▆▇▆▇▆█▆▆▆▇▆▆▆▆▆▆▆▆▆▆▆▇▇▇▇▆▇▆▆11.5493.487-7.8750.5380.016-2.9127.9887.3250.6630.42512.588.84510.7915.478-107.440.242.8193.43320.8590.15217.2116.4141.859-0.32-0.811-2.28621.244-5.453-4.459-6.2940.029-3.960.725-5.183-1.148-2.332-2.874-2.71422.69412.44811.96210.759-7.51112.866-7.811-9.465
us-gaap:IncreaseDecreaseInAccountsReceivable █▄▄█▂▂▃▃▅▁▅▃▇▃▆▇▄▂▄▅▄▂▄▃▅▁▄▄▅▅▃▅▄▄▃▃▄▃▄▄▄▆▂▅▄▄43.186.7983.20738.514-11.517-11.946-0.529-7.86417.715-24.40313.016-8.22331.167-2.20724.45829.3143.367-14.3378.8613.4043.345-15.260.145-7.94512.47-20.3742.3213.10117.01112.647-5.21112.8684.987.877-6.625-1.8776.434-5.5115.2070.2552.68520.301-11.2219.687.7033.362
us-gaap:NetCashProvidedByUsedInOperatingActivities ▂▇▅▃█▇▅▆▄▇▆▆▄▅▃▂▅▄▆▁▄▄▄▄▃▆▂▄▁▃▃▃▁▄▂▃▂▄▃▄▃▂▃▂▂▃53.597135.86799.51359.054153.966133.37694.459111.84981.567138.769115.646120.06282.58999.86264.8944.48797.51474.947111.22230.15379.70391.31987.6289.272.586120.98641.35474.66631.33659.20961.36660.18334.30276.60656.38159.91754.79983.99964.14183.30963.2353.873.23643.83146.45464.962
us-gaap:NetIncomeLoss ▄▃▄▃▃▂▃▃▃▂▃▃▂▂█▂▂▁▂▁▁▁▂▂▂▂▂▂▂▁▂▂▂▁▂▂▂▂▂▂▂▁▂▂▂▁72.03246.49260.55646.33239.13223.05848.49639.04443.31836.08654.56347.51438.26427.807141.13422.51723.21916.01921.81118.9218.30620.09236.64832.07631.84823.14232.70925.9725.63214.33922.17521.25925.8417.51125.98125.12830.6821.24529.36829.57827.51816.29324.11524.15820.9310.836
us-gaap:ShareBasedCompensation █▇█▇▄▇▅▆▇▆▆▆▆▅▅▄▄▄▂▅▅▁▃▁▆▆▅▅▅▅▄▄▄▅▄▄▄▄▃▃▃▃▃▃▂▃2.7472.5022.92.4591.1382.4061.7311.9812.3142.0511.8872.1181.9791.411.3311.1841.1350.8960.0561.3141.326-0.3150.754-0.1481.9851.771.721.5131.5331.3040.981.2391.2891.3011.2281.1411.1111.1220.7220.730.5380.6090.4970.4570.0230.484
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▅▆▄▅▄██▃▅▅▆▃▃▆▅▆▆█▂▇▁▄▄▄▅▄▅▄▆█▆▅█▇▆▆▇▄▅▆▄▇▇▇▆█-63.314-41.291-82.289-77.769-86.693-16.524-9.897-106.564-75.91-79.938-54.63-110.336-116.846-49.562-73.34-55.983-47.097-7.388-130.247-27.778-154.02-98.209-96.393-86.935-71.13-81.088-64.44-80.973-44.794-13.28-41.864-68.304-10.981-19.109-40.672-56.578-37.629-81.926-75.462-46.27-84.329-18.783-34.536-29.713-40.437-9.648
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▅▄▅▅▅▃▂▆▅▅▅▇▇▄▅▄▄▂▆▃█▅▅▅▅▅▄▅▃▂▃▄▂▂▃▃▃▄▄▃▄▂▃▂▃▁110.42882.555118.617124.213113.00457.23145.546135.913118.932120.357107.315156.355161.96594.237110.46979.82383.39242.659149.45275.306189.656123.424116.622121.288107.452108.73590.295106.38569.10530.86461.4485.02432.94631.91958.44374.0756.47595.95493.87167.703103.15137.61556.39737.28865.71616.656
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities █▃▄▄▂▂▃▃▄▄▃▄▅▄▅▅▃▃▅▄▇▄▄▄▄▄▄▅▄▄▄▅▄▃▄▄▄▄▄▄▄▄▁▅▅▄118.208-40.361-29.554-6.225-81.223-68.96-65.838-37.157-24.16-28.064-36.151-10.1645.748-27.04511.873-0.254-58.888-54.14722.13-3.55169.571-4.78-5.24-3.559-13.112-3.081-1.59626.382-15.289-13.165-12.9651.241-18.205-53.595-18.206-3.79-10.834-2.721-33.067-3.271-3.002-1.413-119.5420.6810.622-1.035
us-gaap:PaymentsOfDividendsCommonStock ▁▁▁▁▁▁▁▁█▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▄▁▁▁▂▁▁▁▄▁▁▁6.7926.1146.2196.2196.2186.2326.2286.228267.3946.346.4086.4655.0725.0685.0635.0584.3334.334.3234.3234.3234.324.3143.5943.6053.6023.5873.5983.6193.6363.6263.6353.6643.662113.4623.6443.6433.64240.0583.643.6393.632119.863.6183.6033.595
us-gaap:PaymentsForRepurchaseOfCommonStock ▁▂█▁▁▂▁▁▄▄▅▄▄▁▁▁0.05.50747.7230.00.08.7980.00.021.75620.54525.75223.52922.8840.00.00.0NANA0.00.0NANA0.00.06.4380.00.04.98512.72212.880.04.99515.0650.00.00.0NANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value6868696969696970717272727272727272727272727273737373737373737373727272
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value6767696969696970717272727272727272717172717272727373727272727272727272
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1.060.680.880.670.570.330.70.560.620.510.770.670.530.381.950.310.320.220.30.260.250.280.510.450.440.320.450.360.360.20.310.290.350.240.360.340.420.290.40.410.380.220.330.330.290.15
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1.060.680.880.670.560.330.70.560.620.510.770.660.530.381.940.310.320.220.30.260.250.280.510.440.440.320.450.360.350.20.30.290.350.240.350.340.420.290.40.40.380.220.330.330.290.15
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:AwardType

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:PerformanceShares


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value1209000.0946000.01354000.01086000.053000.01010000.0579000.0680000.01001000.0896000.0833000.0992000.0842000.0485000.0562000.0308000.0306000.0283000.0-461000.0517000.0530000.0-419000.0866000.0-60000.0953000.0755000.0674000.0468000.0431000.0286000.00000
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0
Percentage of Revenues0.20.20.20.20.00.20.10.10.20.20.10.20.10.10.10.10.10.1-0.10.10.1-0.10.2-0.00.20.20.10.10.10.10.00.00.00.0
Percentage of Revenues us-gaap:PerformanceShares0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RestrictedStock


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value1538000.01549000.01546000.01375000.01090000.01398000.01157000.01310000.01313000.01163000.01052000.01028000.01127000.0936000.0804000.0941000.0866000.0633000.0594000.0813000.0800000.0130000.0-74000.0-92000.01024000.01017000.01037000.01022000.01080000.0995000.01096000.01173000.01223000.01235000.01138000.01038000.01027000.01020000.0
Percentage of AllocatedShareBasedCompensationExpense127.2163.7114.2126.62056.6138.4199.8192.6131.2129.8126.3103.6133.8193.0143.1305.5283.0223.7-128.9157.3150.9-31.0-8.5153.3107.5134.7153.9218.4250.6347.90.00.00.00.00.00.00.00.0
Percentage of Revenues0.20.30.20.20.20.20.20.20.20.20.20.20.20.20.10.20.20.10.10.20.20.0-0.0-0.00.20.20.20.20.20.20.20.20.20.30.20.20.20.2
Percentage of Revenues us-gaap:RestrictedStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value74466647397.5685136433652493530138212418211816193629312229242514212124182526292228272716
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues11.47.510.78.16.91.38.35.97.06.18.17.95.85.424.44.24.73.74.13.63.24.07.05.55.94.55.34.44.72.94.24.24.93.75.05.15.74.55.75.45.43.6

us-gaap:ComprehensiveIncomeNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Comprehensive
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value2.225-0.2651.1830.306-15.49-2.5050.420.5132.016-2.4432.603
Percentage of ComprehensiveIncomeNetOfTax3.0-0.62.50.8-204.7-6.91.01.44.1-6.88.6
Percentage of Revenues0.3-0.00.20.1-2.6-0.40.10.10.3-0.40.5
Percentage of Revenues us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Comprehensive
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value7246463923394336473827
Percentage of ComprehensiveIncomeNetOfTax97.0100.697.599.2304.7106.999.098.695.9106.891.4
Percentage of Revenues11.17.57.96.93.96.36.96.17.56.24.9
Percentage of Revenues us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.0

Costs And Expenses

us-gaap:CostsAndExpenses

us-gaap:CostsAndExpenses


Costs
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value572553538528516561556564569548571566568527522492482475483479469450471481482457500510499468481479464464466464470462458459469441422423427406
Percentage of CostsAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues88.289.986.989.590.794.889.491.490.791.988.489.991.893.892.193.292.994.893.394.394.193.389.290.190.292.390.592.492.295.293.093.691.694.291.591.790.292.990.390.290.994.291.291.392.395.7

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value96618161523064515748746350354536372635293032575352385242422336334229434251354950462741403518
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues14.910.013.110.49.15.110.38.49.28.111.510.08.26.38.06.87.15.26.85.86.06.810.99.99.87.79.57.67.94.97.16.58.55.98.68.39.97.29.89.99.15.98.98.87.84.4

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value24152015126.998151214121915127.513-95.70713131013101112212020152016179.6591411171117172014202019111616157.767
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues3.82.53.32.62.31.22.52.02.32.03.12.52.01.3-16.92.62.72.02.62.02.32.74.03.93.83.03.62.93.22.02.82.33.42.33.53.44.02.94.14.13.72.43.73.63.21.8

Income Taxes Paid Net

us-gaap:IncomeTaxesPaidNet

us-gaap:IncomeTaxesPaidNet


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value390.53617332.3810.6118.5614.233360.5565.0230.8695.1620.3016.269114.090.3780.4160.0193.151.0881.00416161.4671716411.3441113363.781823251.0934.9383.523145.7415.02820291.14
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues6.10.12.85.70.40.11.40.75.80.10.80.10.80.11.12.10.80.10.10.00.60.20.23.13.10.33.23.07.60.32.22.77.30.83.74.64.80.21.00.72.81.21.14.36.40.3

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value701000.0838000.0576000.0887000.01161000.01591000.02159000.02408000.01429000.0858000.0853000.0870000.0490000.0482000.0351000.0492000.0624000.0776000.0738000.0749000.0596000.0494000.0405000.0511000.0583000.0475000.0511000.0140000.0136000.094000.0118000.0101000.091000.0144000.063000.018000.065000.0142000.042000.05000.010000.028000.030000.05000.03000.09000.0
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.10.10.10.20.20.30.30.40.20.10.10.10.10.10.10.10.10.20.10.10.10.10.10.10.10.10.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value705000.0878000.0533000.0886000.01185000.01811000.02080000.02531000.0966000.0864000.0991000.0
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.10.10.10.20.20.30.30.40.20.10.2

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value724660463923483943365447382714122231621181820363231233225251422212517252530212929271624242010
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues11.17.59.87.96.93.97.86.36.96.18.47.56.24.924.94.34.53.24.23.73.74.26.96.06.04.75.94.74.72.94.34.25.13.65.15.05.94.35.85.85.33.55.25.24.52.5

Nonoperating Income Expense

us-gaap:NonoperatingIncomeExpense

us-gaap:NonoperatingIncomeExpense


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value19-0.583-0.308-0.619-0.807-1.01-1.53-1.699-0.4980.161-0.399-0.2650.1250.2050.3660.1860.10.0850.2230.260.4560.4510.4430.217-0.0210.0660.1290.4310.5690.5570.5650.5230.5260.3710.5410.4270.450.3040.5890.280.0720.2910.420.5110.3850.339
Percentage of NonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues3.0-0.1-0.0-0.1-0.1-0.2-0.2-0.3-0.10.0-0.1-0.00.00.00.10.00.00.00.00.10.10.10.10.0-0.00.00.00.10.10.10.10.10.10.10.10.10.10.10.10.10.00.10.10.10.10.1

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value76628162523165535848746350354535362534292932575252385241422336324228434151354950462740403518
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues11.810.113.110.59.35.210.68.69.38.111.610.18.26.27.96.87.15.26.75.75.96.710.89.99.87.79.57.67.84.87.06.48.45.88.58.39.87.19.79.89.15.88.88.77.74.3

us-gaap:OperatingIncomeLoss us-gaap:StatementBusinessSegments

wern:CorporateSegment


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value-1.835-0.597-0.702-0.691-1.012-2.0082.761-0.25-0.698-0.8241.741-0.861.506-0.678-0.948-0.454-0.867-0.688-0.8055.5252.053-2.9730.3630.3860.1330.3390.7061.1261.3980.322-1.1890.341.8070.56-0.3040.9650.882-0.4520.013-0.2680.187-0.515-0.5280.751.058
Percentage of OperatingIncomeLoss-2.4-1.0-0.9-1.1-1.9-6.54.2-0.5-1.2-1.72.3-1.43.0-1.9-2.1-1.3-2.3-2.6-2.319.06.9-9.20.60.70.30.91.32.73.31.4-3.31.04.32.0-0.72.31.7-1.30.0-0.50.4-1.9-1.31.93.0
Percentage of Revenues-0.3-0.1-0.1-0.1-0.2-0.30.4-0.0-0.1-0.10.3-0.10.2-0.1-0.2-0.1-0.2-0.1-0.21.10.4-0.60.10.10.00.10.10.20.30.1-0.20.10.40.1-0.10.20.2-0.10.0-0.10.0-0.1-0.10.20.2
Percentage of Revenues wern:CorporateSegment-448.7-157.50.0-143.7-229.0-324.40.0-36.4-111.0-139.90.0-136.1238.7-74.80.0-76.6-165.5-163.00.01765.2334.4-797.10.060.918.365.10.0163.7168.657.70.033.3181.486.20.084.762.2-42.00.0-24.112.5-61.80.083.395.7

wern:OtherSegment


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value1.6630.8660.9070.566-0.5342.90.3541.7092.2931.179-0.8860.5760.243-0.386-0.571.001-0.5410.145-1.213-1.191-1.839-1.934-5.475-1.354-0.239-0.445-5.2360.4040.3570.4840.470.9491.6230.905-0.5490.4020.8550.5040.6940.545-1.9030.2810.095-0.6930.055
Percentage of OperatingIncomeLoss2.21.41.10.9-1.09.30.53.23.92.5-1.20.90.5-1.1-1.32.8-1.50.6-3.5-4.1-6.2-6.0-9.6-2.6-0.5-1.2-9.91.00.82.11.32.93.83.2-1.31.01.71.41.41.1-4.11.00.2-1.70.2
Percentage of Revenues0.30.10.10.1-0.10.50.10.30.40.2-0.10.10.0-0.1-0.10.2-0.10.0-0.2-0.2-0.4-0.4-1.0-0.3-0.0-0.1-0.90.10.10.10.10.20.30.2-0.10.10.20.10.10.1-0.40.10.0-0.10.0
Percentage of Revenues wern:OtherSegment9.95.60.04.0-4.019.20.010.814.27.60.03.81.7-2.90.06.2-3.60.90.0-8.0-12.1-14.70.0-9.6-1.7-3.20.02.42.912.10.028.277.944.30.014.024.616.50.016.6-58.810.50.0-30.62.0

wern:TruckloadTransportationServicesSegment


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value735778635129594851426658433344343623321922325748473554393820342734234036453142454424383732
Percentage of OperatingIncomeLoss95.192.296.5101.697.093.690.191.688.489.589.292.985.595.298.994.897.690.493.768.377.099.6101.292.390.693.9104.093.990.588.695.483.281.382.392.987.788.288.686.891.395.788.494.392.990.3
Percentage of Revenues11.39.312.710.79.04.99.57.98.27.210.39.47.05.97.96.46.94.76.33.94.66.711.09.18.87.29.97.17.14.26.65.36.84.87.97.28.66.38.49.08.75.28.38.06.9
Percentage of Revenues wern:TruckloadTransportationServicesSegment14.912.40.013.811.56.30.010.210.89.30.012.19.27.70.08.38.96.10.05.26.08.70.011.711.39.20.09.18.95.20.06.68.35.80.08.710.47.50.010.710.26.00.09.48.1

wern:ValueAddedServicesSegment


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value3.9274.5742.633-0.8523.1391.0853.3673.0285.1824.7117.2434.7765.6022.7572.0311.3182.2853.0494.2324.8946.5735.0354.4245.0215.0042.4492.4031.0222.2551.8552.3694.1934.4893.6133.9323.7794.3023.9865.8334.0743.7193.412.7622.8132.346
Percentage of OperatingIncomeLoss5.17.33.2-1.45.93.55.15.78.99.89.77.511.07.94.53.76.211.712.116.822.215.57.79.59.66.44.62.55.37.96.612.910.612.69.19.08.411.311.88.18.012.46.87.06.6
Percentage of Revenues0.60.70.4-0.10.60.20.50.50.80.81.10.80.90.50.40.20.40.60.81.01.31.00.80.90.90.50.40.20.40.40.50.80.90.70.80.70.80.81.10.80.70.70.60.60.5
Percentage of Revenues wern:ValueAddedServicesSegment2.83.30.0-0.72.81.00.02.54.04.00.03.74.22.30.01.32.33.10.04.56.35.20.04.94.82.70.01.02.22.20.04.34.94.40.04.65.15.20.05.35.25.40.04.33.6

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

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value1865000.0-1568000.05315000.0782000.0929000.0-9893000.01917000.0-1065000.0526000.0618000.0-2292000.02011000.0-2537000.02325000.0-2722000.0-627000.01385000.02447000.0-1182000.0-1023000.0-2042000.056000.0-352000.0-2044000.0-698000.0-836000.0-2679000.0-985000.090000.010000.0-340000.049000.0-1147000.0963000.0-254000.0902000.0-819000.01185000.0
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.3-0.30.90.10.2-1.70.3-0.20.10.1-0.40.3-0.40.4-0.5-0.10.30.5-0.2-0.2-0.40.0-0.1-0.4-0.1-0.2-0.5-0.20.00.0-0.10.0-0.20.2-0.00.2-0.20.2

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value2225000.0-265000.05896000.01183000.0306000.0-15490000.02917000.0-2505000.0420000.0513000.0-2414000.02016000.0-2443000.02603000.0-2457000.0-527000.01405000.02661000.0-328000.0-635000.0-2212000.0-679000.0258000.0-2649000.0-374000.0-923000.0-3428000.0-1416000.090000.010000.0-340000.049000.0-1147000.0963000.0-254000.0902000.0-819000.01185000.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.3-0.01.00.20.1-2.60.5-0.40.10.1-0.40.3-0.40.5-0.4-0.10.30.5-0.1-0.1-0.4-0.10.0-0.5-0.1-0.2-0.6-0.30.00.0-0.10.0-0.20.2-0.00.2-0.20.2

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-54000.0-42000.0-40000.0-55000.0-23000.0-45000.0-49000.0-47000.0-58000.0116000.0-204000.0-41000.0-78000.0-53000.0-35000.0-88000.0-152000.0-53000.0-43000.0-46000.0-57000.0-45000.061000.0-32000.0-135000.0-90000.031000.0-43000.045000.0-4000.043000.035000.082000.010000.083000.0-16000.082000.024000.0210000.0-52000.0-263000.0-26000.038000.084000.033000.011000.0
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.00.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.00.0-0.0-0.0-0.00.0-0.00.0-0.00.00.00.00.00.0-0.00.00.00.0-0.0-0.1-0.00.00.00.00.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value649616620590568592621618627596646629619562567528519501518508498482528534534495553551542492517511506492509506521498507509515469463463463425
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:StatementBusinessSegments

us-gaap:IntersegmentElimination


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-0.193-0.134-0.052-0.03-0.014-0.011-0.003-0.001-0.034-0.205-0.271-0.208-0.212-0.458-0.109-0.104-0.449-0.167-0.205-0.212-0.313-0.243-0.3-0.283-0.47-0.275-0.458-0.704-0.858-0.864-0.987-1.789-0.485-1.217-0.651-0.723-1.085-0.763
Percentage of Revenues-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.1-0.0-0.0-0.1-0.0-0.0-0.0-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.2-0.2-0.2-0.3-0.1-0.2-0.1-0.1-0.2-0.2
Percentage of Revenues-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.1-0.0-0.0-0.1-0.0-0.0-0.0-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.2-0.2-0.2-0.3-0.1-0.2-0.1-0.1-0.2-0.2
Percentage of Revenues us-gaap:IntersegmentElimination100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wern:CorporateSegment


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value0.4090.3790.4670.4810.4420.6190.6840.6870.6290.5890.5890.6320.6310.9070.3990.5930.5240.4220.4490.3130.6140.3730.4170.6340.7250.5210.7280.6880.8290.5580.4141.0210.9960.650.6891.1391.4191.0750.9711.1131.4920.8330.7640.91.105
Percentage of Revenues0.10.10.10.10.10.10.10.10.10.10.10.10.10.20.10.10.10.10.10.10.10.10.10.10.10.10.10.10.20.10.10.20.20.10.10.20.30.20.20.20.30.20.20.20.2
Percentage of Revenues0.10.10.10.10.10.10.10.10.10.10.10.10.10.20.10.10.10.10.10.10.10.10.10.10.10.10.10.10.20.10.10.20.20.10.10.20.30.20.20.20.30.20.20.20.2
Percentage of Revenues wern:CorporateSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wern:OtherSegment


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value16151414131514151615141514131516151613141513121413131316123.9893.8473.3682.0832.0442.3722.8723.4813.0573.1823.2743.2342.6772.5382.2622.735
Percentage of Revenues2.62.52.42.42.32.52.32.62.62.62.22.42.32.42.73.02.93.22.72.93.02.72.42.62.62.82.43.12.30.80.70.70.40.40.50.60.70.60.60.60.60.60.50.50.6
Percentage of Revenues2.62.52.42.42.32.52.32.62.62.62.22.42.32.42.73.02.93.22.72.93.02.72.42.62.62.82.43.12.30.80.70.70.40.40.50.60.70.60.60.60.60.60.50.50.6
Percentage of Revenues wern:OtherSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wern:Otherrevenuerecognitionsegments


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value171515141315151616161415151415161516
Percentage of Revenues2.62.62.52.52.42.62.42.72.72.72.32.52.42.52.83.13.03.3
Percentage of Revenues2.62.62.52.52.42.62.42.72.72.72.32.52.42.52.83.13.03.3
Percentage of Revenues wern:Otherrevenuerecognitionsegments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wern:Subtotal


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value650616620590568592621618627596646629619563567528519501519508498483529534535495553552542492518513507494510507522499
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.1100.0100.0100.1100.0100.0100.0100.1100.1100.1100.1100.1100.1100.1100.1100.2100.2100.2100.3100.1100.2100.1100.1100.2100.2
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.1100.0100.0100.1100.0100.0100.0100.1100.1100.1100.1100.1100.1100.1100.1100.2100.2100.2100.3100.1100.2100.1100.1100.2100.2
Percentage of Revenues wern:Subtotal100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wern:TransportationServices


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value632600605575555577606601610580631613604548551512503484
Percentage of Revenues97.497.497.597.597.697.497.697.397.397.397.797.597.697.597.296.997.096.7
Percentage of Revenues97.497.497.597.597.697.497.697.397.397.397.797.597.697.597.296.997.096.7
Percentage of Revenues wern:TransportationServices100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wern:TruckloadTransportationServicesSegment


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value491462475458445464486480479462494484470431439407403385397384379372419417417390440428429403423412412408428420432417424428439402400395394
Percentage of Revenues75.675.176.677.678.278.478.377.776.577.776.577.076.076.777.477.177.776.876.675.676.177.279.378.278.078.879.777.779.281.981.880.681.583.084.282.983.083.883.584.185.385.786.485.485.1
Percentage of Revenues75.675.176.677.678.278.478.377.776.577.776.577.076.076.777.477.177.776.876.675.676.177.279.378.278.078.879.777.779.281.981.880.681.583.084.282.983.083.883.584.185.385.786.485.485.1
Percentage of Revenues wern:TruckloadTransportationServicesSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wern:ValueAddedServicesSegment


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value141137130117110112120121130117137129134117112104100991071091039696102103909810610085919691827782847679767163596465
Percentage of Revenues21.822.421.019.919.418.919.319.620.919.721.220.621.620.919.819.819.419.920.721.520.820.018.319.119.318.317.819.318.517.317.618.818.016.715.216.316.115.415.715.013.813.512.914.014.0
Percentage of Revenues21.822.421.019.919.418.919.319.620.919.721.220.621.620.919.819.819.419.920.721.520.820.018.319.119.318.317.819.318.517.317.618.818.016.715.216.316.115.415.715.013.813.512.914.014.0
Percentage of Revenues wern:ValueAddedServicesSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:StatementGeographical

country:MX


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value393838363143434951525561595654545150
Percentage of Revenues6.16.36.26.25.57.37.07.98.38.98.79.79.610.09.610.39.810.0
Percentage of Revenues6.16.36.26.25.57.37.07.98.38.98.79.79.610.09.610.39.810.0
Percentage of Revenues country:MX100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

country:US


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value602555562534516530559551554526567548540488495454452434
Percentage of Revenues92.790.190.790.690.889.490.089.188.388.387.987.287.386.787.486.087.186.7
Percentage of Revenues92.790.190.790.690.889.490.089.188.388.387.987.287.386.787.486.087.186.7
Percentage of Revenues country:US100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wern:Others


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value8.3432219182119181821162219191817191616
Percentage of Revenues1.33.63.13.13.83.23.02.93.42.83.53.13.13.23.03.73.13.2
Percentage of Revenues1.33.63.13.13.83.23.02.93.42.83.53.13.13.23.03.73.13.2
Percentage of Revenues wern:Others100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value23822229215621402079208821432163212821182083203319711822180717621731174517931726172616091613157115431518148014491390137213541351132013221334134613251324130212691223119011511173
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value23822229215621402079208821432163212821182083203319711822180717621731174517931726172616091613157115431518148014491390137213541351132013221334134613251324130212691223119011511173
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value129612271195118011361102111110641032127512641243122112131184105010311010994978963949935903878854833804787775772752738731714796772745725735710685668704745832
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets54.455.155.455.154.652.851.849.248.560.260.761.262.066.665.559.659.657.955.556.755.859.058.057.556.956.356.355.556.656.557.155.756.055.353.659.158.356.355.757.958.157.558.160.10.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value-20.873-23.098-22.833-28.729-29.912-30.218-14.728-17.645-15.14-15.56-16.073-13.659-15.675-13.232-15.835-16.917-13.063-9.375-4.631-4.156-5.17-3.42-5.556-7.146-0.169
Percentage of StockholdersEquity-1.6-1.9-1.9-2.4-2.6-2.7-1.3-1.7-1.5-1.2-1.3-1.1-1.3-1.1-1.3-1.7-1.4-1.1-0.6-0.6-0.7-0.5-0.8-1.0-0.0
Percentage of Assets-0.9-1.0-1.1-1.3-1.4-1.4-0.7-0.8-0.7-0.7-0.8-0.7-0.8-0.7-0.9-0.9-0.8-0.6-0.3-0.3-0.4-0.3-0.50.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value117114116114111110112112110107107106104102102101102101989794919293101
Percentage of StockholdersEquity9.09.39.79.79.810.010.110.510.78.58.58.68.68.58.710.211.012.212.813.613.013.713.112.512.1
Percentage of Assets4.95.15.45.35.45.35.35.25.25.15.25.35.35.65.75.66.46.97.37.37.28.07.90.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value15421478143813841344131112941252121914431413136513241292126710841022915830758779728778826923
Percentage of StockholdersEquity119.0120.4120.4117.3118.3119.0116.5117.6118.1113.2111.8109.8108.4106.6107.0109.0109.3109.7107.5106.1107.6108.9110.5110.9110.9
Percentage of Assets64.766.366.764.764.662.860.457.957.368.167.967.267.270.970.160.563.461.861.456.859.963.266.40.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value-342.915-343.181-337.887-290.487-290.5-290.694-282.326-282.764-282.952-261.326-241.18-216.072-192.784-169.991-170.622-174.932-177.788-174.458-153.031-137.826-144.878-148.498-161.878-167.983-192.283
Percentage of StockholdersEquity-26.4-28.0-28.3-24.6-25.6-26.4-25.4-26.6-27.4-20.5-19.1-17.4-15.8-14.0-14.4-17.6-19.0-20.9-19.8-19.3-20.0-22.2-23.0-22.5-23.1
Percentage of Assets-14.4-15.4-15.7-13.6-14.0-13.9-13.2-13.1-13.3-12.3-11.6-10.6-9.8-9.3-9.4-9.8-11.0-11.8-11.3-10.3-11.1-12.9-13.80.00.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value666532456464431459466436453455456419413411400381347369373377348343407400416425426414390398349348347327319328323318341366334350297284
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets28.023.921.221.720.822.021.820.221.321.521.920.721.022.622.121.620.021.220.821.920.221.425.325.527.028.028.828.628.129.025.825.826.324.823.924.424.424.026.228.927.429.525.924.3

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value192832940657226144664339.659.924381310223016131520314547592247275623172419151818121256234713947973184825
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.13.71.41.93.13.51.20.72.23.11.60.50.52.10.80.61.31.80.90.80.91.32.02.93.13.91.53.32.04.11.71.31.81.51.21.31.40.91.04.51.94.01.20.00.00.01.60.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-31
Value192832940657933144664339.659.924381517291735
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.13.71.41.93.13.81.60.72.23.11.60.50.52.10.81.01.71.02.2

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value391347341337299310322323331313337324333301304279250247261252239235251250258246266264261244231236223219211217219213218213213210190180
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets16.415.615.815.814.414.915.114.915.614.816.216.016.916.616.815.914.514.214.614.613.814.615.616.016.816.218.018.218.817.817.117.517.016.615.816.216.616.116.816.817.417.716.515.4

Inventory Net

us-gaap:InventoryNet

us-gaap:InventoryNet


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1111129.3548.7138.1519.2439.75109.67410111110111111121214141516161617171515141517202223252627302824211612
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.50.60.40.40.40.40.50.50.50.50.60.60.60.60.70.70.70.70.80.91.01.01.01.11.21.21.01.11.11.21.31.51.71.71.92.02.12.32.22.01.81.51.1

Other Assets Current

us-gaap:OtherAssetsCurrent

us-gaap:OtherAssetsCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value3832334026333837333131383130273830372963272727282625263132342734362121231518292726212322
Percentage of OtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.61.51.61.91.31.61.81.71.61.51.51.91.61.71.52.21.82.11.73.71.61.71.71.81.71.71.82.22.32.52.02.62.71.61.61.81.21.42.32.22.11.82.01.9

Land

us-gaap:Land

us-gaap:Land


Land
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value726359565634323131303028
Percentage of Land100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.33.02.83.13.12.12.22.32.42.32.62.4

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value24282410240523842368232523432384231222902247224921872126211420782077206721092011205719511908188518501820178617641724170517271712167116881690168916661673162515811577153815491580
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets101.9108.1111.5111.4113.9111.3109.3110.2108.6108.1107.9110.7111.0116.7116.9117.9120.0118.4117.7116.5119.2121.2118.3119.9119.9119.9120.7121.8124.0124.3127.6126.8126.6127.6126.6125.5125.8126.4124.8124.6128.9129.2134.6134.8

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value893873862857868846817808787776760781773776767758746744747728743750754761766770772771762758750736721715696691686689682693701710708708
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets37.539.240.040.041.840.538.137.437.036.736.538.439.242.642.443.043.142.641.742.243.146.646.748.449.750.752.253.254.955.355.454.554.754.152.251.451.852.152.454.757.359.761.560.4

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value153415371543152715001478152615751525151314871468141413501346131913301323136212831314120111541124108410501013993961946977975949972993998980984942887875827841871
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets64.469.071.671.472.170.871.272.871.771.571.472.271.874.174.574.976.875.876.074.376.174.671.571.570.369.268.568.669.269.072.272.271.973.574.574.273.974.372.369.971.669.573.074.3

us-gaap:PropertyPlantAndEquipmentNet us-gaap:StatementGeographical

country:MX


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value363834252019232113
Percentage of PropertyPlantAndEquipmentNet2.32.52.31.91.51.72.32.21.4
Percentage of Assets1.71.81.71.41.11.21.61.61.0
Percentage of Assets country:MX0.00.00.00.00.00.00.00.00.0

country:US


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value150614871452132113411134989955979
Percentage of PropertyPlantAndEquipmentNet97.697.597.698.198.598.397.697.898.6
Percentage of Assets69.969.469.773.174.870.366.970.673.4
Percentage of Assets country:US0.00.00.00.00.00.00.00.00.0

wern:Others


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value0.1740.2570.2890.3480.3210.1580.2330.3210.3860.4850.2870.229
Percentage of PropertyPlantAndEquipmentNet0.00.00.00.00.00.00.00.00.00.10.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets wern:Others0.00.00.00.00.00.00.00.00.00.00.00.0

wern:TotalForeignCountries


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value363835252020232114101618
Percentage of PropertyPlantAndEquipmentNet2.42.52.41.91.51.72.42.21.41.12.02.1
Percentage of Assets1.71.81.71.41.21.21.61.61.10.81.41.5
Percentage of Assets wern:TotalForeignCountries0.00.00.00.00.00.00.00.00.00.00.00.0

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302019-06-302019-03-312019-01-01
Value9.9779.5069.95110119.8837.917.9878.7
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.40.50.50.50.50.40.40.0

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value18115915614814715015115114914913914414260606154525765646451464242404138272626232221192121181512121216
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.67.17.36.97.17.27.17.07.07.16.77.17.23.33.43.53.13.03.23.83.74.03.23.02.82.82.72.92.82.02.02.01.71.71.61.41.71.71.51.21.01.01.11.4

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value941138310484879489929997909183737270636672857870838772648984706675696256747787936766645747
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.05.13.94.94.14.24.44.14.44.74.74.44.74.64.14.14.13.63.74.25.04.94.45.35.74.84.46.16.15.14.95.65.34.74.25.55.86.67.25.35.45.45.04.0

Accrued Income Taxes Current

us-gaap:AccruedIncomeTaxesCurrent

us-gaap:AccruedIncomeTaxesCurrent


Accrued
Period End2021-03-312020-12-312020-06-302019-12-312019-03-312018-12-312013-03-312012-12-31
Value197.824150.0186.693141.544
Percentage of AccruedIncomeTaxesCurrent100.0100.0100.00.0100.0100.0100.0100.0
Percentage of Assets0.90.40.80.00.90.31.10.1

Accrued Liabilities Current

us-gaap:AccruedLiabilitiesCurrent

us-gaap:AccruedLiabilitiesCurrent


Accrued
Period End2021-06-302021-03-312020-12-312019-12-31
Value25252511
Percentage of AccruedLiabilitiesCurrent100.0100.0100.0100.0
Percentage of Assets1.11.11.20.5

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value259307274256249304308331228322310297228211232214198207214194211190183209203198186206194190167181169180176177178201198176169177168146
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets10.913.812.712.012.014.614.415.310.715.214.914.711.611.612.812.211.511.912.011.312.311.811.413.413.213.112.614.314.013.912.413.412.813.713.213.213.515.215.313.913.914.914.612.5

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-30
Value3360000.03408000.03421000.03327000.0
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0
Percentage of Assets0.10.20.20.2

Other Liabilities Current

us-gaap:OtherLiabilitiesCurrent

us-gaap:OtherLiabilitiesCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value2017282826313128272630262124242222171818182123282120192020301818181820192324161917192016
Percentage of OtherLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.80.81.31.31.31.51.41.31.31.21.41.31.11.31.41.31.31.01.01.11.01.41.51.81.41.31.31.41.52.21.41.41.41.41.61.51.71.81.31.51.41.61.71.4

Deferred Tax Liabilities Noncurrent

us-gaap:DeferredTaxLiabilitiesNoncurrent

us-gaap:DeferredTaxLiabilitiesNoncurrent


Deferred
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value237249241234233233221212201195301300296292271269252274232237240241212217221227224228226232236237239243226214201190199
Percentage of DeferredTaxLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.011.611.211.011.011.210.910.811.110.817.117.317.016.315.715.615.717.014.815.415.816.314.715.716.116.816.617.317.117.417.518.018.118.717.917.517.016.517.0

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxLiabilitiesNet


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value253241237245244244249
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets10.610.811.011.511.811.711.6

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value424143483928212017171011111212141516161821201921172120191914141316161515151414101010108.76
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.81.92.02.31.91.31.00.90.80.80.50.60.60.70.70.80.90.90.91.11.21.31.21.31.21.41.41.41.41.11.11.01.31.21.21.11.11.11.10.80.90.90.90.7

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-30
Value7120000.06558000.06949000.07460000.0
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0
Percentage of Assets0.30.30.30.3

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value3150000.02934000.02772000.03546000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0100.0100.0100.0
Percentage of Assets0.10.10.10.2

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value2261000.01910000.01748000.02622000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0100.0100.0100.0
Percentage of Assets0.10.10.10.1

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value1864000.01507000.01404000.01635000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0100.0100.0100.0
Percentage of Assets0.10.10.10.1

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value1333000.0969000.0969000.01404000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0100.0100.0100.0
Percentage of Assets0.10.00.00.1

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value640000.0473000.0473000.01442000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0100.0100.0100.0
Percentage of Assets0.00.00.00.1

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312019-01-01
Value109.9661010101111108.1818.2678.7
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.40.50.50.50.60.50.50.40.40.0

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value11101111
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0100.0100.0100.0
Percentage of Assets0.50.50.50.5

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value656000.0633000.0692000.0766000.0
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0100.0100.0100.0
Percentage of Assets0.00.00.00.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value129612271195118011361102111110641032127512641243122112131184105010311010994978963949935903878854833804787775772752738731714796772745725735710685668704745832
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets54.455.155.455.154.652.851.849.248.560.260.761.262.066.665.559.659.657.955.556.755.859.058.057.556.956.356.355.556.656.557.155.756.055.353.659.158.356.355.757.958.157.558.160.10.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value-20.873-23.098-22.833-28.729-29.912-30.218-14.728-17.645-15.14-15.56-16.073-13.659-15.675-13.232-15.835-16.917-13.063-9.375-4.631-4.156-5.17-3.42-5.556-7.146-0.169
Percentage of StockholdersEquity-1.6-1.9-1.9-2.4-2.6-2.7-1.3-1.7-1.5-1.2-1.3-1.1-1.3-1.1-1.3-1.7-1.4-1.1-0.6-0.6-0.7-0.5-0.8-1.0-0.0
Percentage of Assets-0.9-1.0-1.1-1.3-1.4-1.4-0.7-0.8-0.7-0.7-0.8-0.7-0.8-0.7-0.9-0.9-0.8-0.6-0.3-0.3-0.4-0.3-0.50.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value117114116114111110112112110107107106104102102101102101989794919293101
Percentage of StockholdersEquity9.09.39.79.79.810.010.110.510.78.58.58.68.68.58.710.211.012.212.813.613.013.713.112.512.1
Percentage of Assets4.95.15.45.35.45.35.35.25.25.15.25.35.35.65.75.66.46.97.37.37.28.07.90.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value15421478143813841344131112941252121914431413136513241292126710841022915830758779728778826923
Percentage of StockholdersEquity119.0120.4120.4117.3118.3119.0116.5117.6118.1113.2111.8109.8108.4106.6107.0109.0109.3109.7107.5106.1107.6108.9110.5110.9110.9
Percentage of Assets64.766.366.764.764.662.860.457.957.368.167.967.267.270.970.160.563.461.861.456.859.963.266.40.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value-342.915-343.181-337.887-290.487-290.5-290.694-282.326-282.764-282.952-261.326-241.18-216.072-192.784-169.991-170.622-174.932-177.788-174.458-153.031-137.826-144.878-148.498-161.878-167.983-192.283
Percentage of StockholdersEquity-26.4-28.0-28.3-24.6-25.6-26.4-25.4-26.6-27.4-20.5-19.1-17.4-15.8-14.0-14.4-17.6-19.0-20.9-19.8-19.3-20.0-22.2-23.0-22.5-23.1
Percentage of Assets-14.4-15.4-15.7-13.6-14.0-13.9-13.2-13.1-13.3-12.3-11.6-10.6-9.8-9.3-9.4-9.8-11.0-11.8-11.3-10.3-11.1-12.9-13.80.00.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1171141161141111101121121101071071061041021021031021011011031021011021041041021011021019998100999897979695949393929192
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.95.15.45.35.45.35.35.25.25.15.25.35.35.65.75.95.95.85.66.05.96.36.46.76.86.86.97.17.37.37.37.47.57.47.37.27.37.27.27.47.67.88.07.9

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value15421478143813841344131112941252121914431413136513241292126711311114109610841067105210381022990962934915885863841830812794772758846824797779790764740728778
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets64.766.366.764.764.662.860.457.957.368.167.967.267.270.970.164.264.462.860.561.861.064.563.463.062.461.561.861.162.161.361.460.160.258.456.862.862.260.259.962.362.562.263.266.4

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value-20873000.0-23098000.0-22833000.0-28729000.0-29912000.0-30218000.0-14728000.0-17645000.0-15140000.0-15560000.0-16073000.0-13659000.0-15675000.0-13232000.0-15835000.0-13378000.0-12851000.0-14256000.0-16917000.0-16589000.0-15954000.0-13742000.0-13063000.0-13321000.0-10672000.0-10298000.0-9375000.0-5947000.0-4531000.0-4621000.0-4631000.0-4291000.0-4340000.0-3193000.0-4156000.0-3902000.0-4804000.0-3985000.0-5170000.0-4660000.0-2696000.0-2872000.0-3420000.0-5556000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.9-1.0-1.1-1.3-1.4-1.4-0.7-0.8-0.7-0.7-0.8-0.7-0.8-0.7-0.9-0.8-0.7-0.8-0.9-1.0-0.9-0.9-0.8-0.8-0.7-0.7-0.6-0.4-0.3-0.3-0.3-0.3-0.3-0.2-0.3-0.3-0.4-0.3-0.4-0.4-0.2-0.2-0.3-0.5

Treasury Stock Value

us-gaap:TreasuryStockValue

us-gaap:TreasuryStockValue


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value342343337290290290282282282261241216192169170171173173174176176177177179179173174179174162153156151137137144144144144145145146148161
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets14.415.415.713.614.013.913.213.113.312.311.610.69.89.39.49.710.010.09.810.210.211.011.011.411.611.411.812.412.511.911.311.611.510.410.310.710.910.911.111.411.912.312.913.8

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

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value2747000.02502000.02459000.01138000.02406000.01981000.02314000.02051000.02118000.01979000.01410000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value2747000.02502000.02459000.01138000.02406000.01981000.02314000.02051000.02118000.01979000.01410000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value53135995915313394111811381151208299644497741113079918789721204174315961603476565954836483635373434664
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues8.222.016.010.027.122.515.218.113.023.317.919.113.317.711.48.418.815.021.45.916.018.916.616.713.624.47.513.55.812.011.811.86.815.511.111.810.516.912.616.312.311.515.89.510.015.3

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-63314000.0-41291000.0-82289000.0-77769000.0-86693000.0-16524000.0-9897000.0-106560000.0-75910000.0-79938000.0-54630000.0-110340000.0-116850000.0-49562000.0-73340000.0-55983000.0-47097000.0-7388000.0-130250000.0-27778000.0-154020000.0-98209000.0-96393000.0-86935000.0-71130000.0-81088000.0-64440000.0-80973000.0-44794000.0-13280000.0-41864000.0-68304000.0-10981000.0-19109000.0-40672000.0-56578000.0-37629000.0-81926000.0-75462000.0-46270000.0-84329000.0-18783000.0-34536000.0-29713000.0-40437000.0-9648000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-9.7-6.7-13.3-13.2-15.2-2.8-1.6-17.2-12.1-13.4-8.5-17.5-18.9-8.8-12.9-10.6-9.1-1.5-25.1-5.5-30.9-20.3-18.2-16.3-13.3-16.4-11.6-14.7-8.3-2.7-8.1-13.3-2.2-3.9-8.0-11.2-7.2-16.4-14.9-9.1-16.3-4.0-7.5-6.4-8.7-2.3

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value118-40.361-29.554-6.225-81.223-68.96-65.838-37.157-24.16-28.064-36.151-10.1645.748-27.04511-0.254-58.888-54.14722-3.55169-4.78-5.24-3.559-13.112-3.081-1.59626-15.289-13.165-12.9651.241-18.205-53.595-18.206-3.79-10.834-2.721-33.067-3.271-3.002-1.413-119.5420.6810.622-1.035
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues18.2-6.5-4.8-1.1-14.3-11.6-10.6-6.0-3.8-4.7-5.6-1.60.9-4.82.1-0.0-11.3-10.84.3-0.714.0-1.0-1.0-0.7-2.5-0.6-0.34.8-2.8-2.7-2.50.2-3.6-10.9-3.6-0.7-2.1-0.5-6.5-0.6-0.6-0.3-25.80.10.1-0.2

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value10853-11.142-24.913-13.8724519-32.066-18.3223024-0.274-28.86523-2.4-11.626
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues16.88.7-1.8-4.2-2.47.73.1-5.2-2.95.23.8-0.0-4.74.2-0.4-2.2

Deferred Income Tax Expense Benefit

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DeferredIncomeTaxExpenseBenefit


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value113.487-7.8750.5380.016-2.9127.9887.3250.6630.425128.845105.478-107.440.242.8193.433200.152176.4141-0.32-0.811-2.28621-5.453-4.459-6.2940.029-3.960.725-5.183-1.148-2.332-2.874-2.71422121110-7.51112-7.811-9.465
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value436.7983.20738-11.517-11.946-0.529-7.86417-24.40313-8.22331-2.20724293.367-14.3378.86133.345-15.260.145-7.94512-20.3742.3213.1011712-5.211124.987.877-6.625-1.8776.434-5.5115.2070.2552.68520-11.2219.687.7033.362
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value53135995915313394111811381151208299644497741113079918789721204174315961603476565954836483635373434664
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues8.222.016.010.027.122.515.218.113.023.317.919.113.317.711.48.418.815.021.45.916.018.916.616.713.624.47.513.55.812.011.811.86.815.511.111.810.516.912.616.312.311.515.89.510.015.3

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value724660463923483943365447382714122231621181820363231233225251422212517252530212929271624242010
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues11.17.59.87.96.93.97.86.36.96.18.47.56.24.924.94.34.53.24.23.73.74.26.96.06.04.75.94.74.72.94.34.25.13.65.15.05.94.35.85.85.33.55.25.24.52.5

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2747000.02502000.02900000.02459000.01138000.02406000.01731000.01981000.02314000.02051000.01887000.02118000.01979000.01410000.01331000.01184000.01135000.0896000.056000.01314000.01326000.0-315000.0754000.0-148000.01985000.01770000.01720000.01513000.01533000.01304000.0980000.01239000.01289000.01301000.01228000.01141000.01111000.01122000.0722000.0730000.0538000.0609000.0497000.0457000.023000.0484000.0
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-63314000.0-41291000.0-82289000.0-77769000.0-86693000.0-16524000.0-9897000.0-106560000.0-75910000.0-79938000.0-54630000.0-110340000.0-116850000.0-49562000.0-73340000.0-55983000.0-47097000.0-7388000.0-130250000.0-27778000.0-154020000.0-98209000.0-96393000.0-86935000.0-71130000.0-81088000.0-64440000.0-80973000.0-44794000.0-13280000.0-41864000.0-68304000.0-10981000.0-19109000.0-40672000.0-56578000.0-37629000.0-81926000.0-75462000.0-46270000.0-84329000.0-18783000.0-34536000.0-29713000.0-40437000.0-9648000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-9.7-6.7-13.3-13.2-15.2-2.8-1.6-17.2-12.1-13.4-8.5-17.5-18.9-8.8-12.9-10.6-9.1-1.5-25.1-5.5-30.9-20.3-18.2-16.3-13.3-16.4-11.6-14.7-8.3-2.7-8.1-13.3-2.2-3.9-8.0-11.2-7.2-16.4-14.9-9.1-16.3-4.0-7.5-6.4-8.7-2.3

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1108211812411357451351181201071561619411079834214975189123116121107108901066930618532315874569593671033756376516
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value118-40.361-29.554-6.225-81.223-68.96-65.838-37.157-24.16-28.064-36.151-10.1645.748-27.04511-0.254-58.888-54.14722-3.55169-4.78-5.24-3.559-13.112-3.081-1.59626-15.289-13.165-12.9651.241-18.205-53.595-18.206-3.79-10.834-2.721-33.067-3.271-3.002-1.413-119.5420.6810.622-1.035
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues18.2-6.5-4.8-1.1-14.3-11.6-10.6-6.0-3.8-4.7-5.6-1.60.9-4.82.1-0.0-11.3-10.84.3-0.714.0-1.0-1.0-0.7-2.5-0.6-0.34.8-2.8-2.7-2.50.2-3.6-10.9-3.6-0.7-2.1-0.5-6.5-0.6-0.6-0.3-25.80.10.1-0.2

Payments Of Dividends Common Stock

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsOfDividendsCommonStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value6.7926.1146.2196.2196.2186.2326.2286.2282676.346.4086.4655.0725.0685.0635.0584.3334.334.3234.3234.3234.324.3143.5943.6053.6023.5873.5983.6193.6363.6263.6353.6643.6621133.6443.6433.642403.643.6393.6321193.6183.6033.595
Percentage of PaymentsOfDividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312016-09-302015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value0.05.507470.00.08.7980.00.021202523220.00.00.00.00.00.00.06.4380.00.04.98512120.04.995150.00.00.0
Percentage of PaymentsForRepurchaseOfCommonStock0.0100.0100.00.00.0100.00.00.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.0100.00.00.0100.0100.0100.00.0100.0100.00.00.00.0

Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

us-gaap:PerformanceShares


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value074000.033000.000100000.066000.00097000.000084000.000069000.0000110000.0000202000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod0.0100.0100.00.00.0100.0100.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.0

us-gaap:RestrictedStock


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312013-12-312013-09-302013-06-302012-12-312012-09-302012-06-30
Value13000.0114000.030000.04000.014000.0133000.028000.02000.013000.0132000.035000.01000.09000.0115000.029000.01000.011000.069000.067000.0000126000.0000115000.000223000.040000.05000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod0.0154.190.90.00.0133.042.40.00.0136.10.00.00.0136.90.00.00.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value237249233195292246305292297305247
Percentage of DeferredTaxLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value2.3632.5412.5772.8836.0557.7178.5838.64411107.4827.531
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllocatedShareBasedCompensationExpenseNetOfTax us-gaap:AwardType

us-gaap:AllocatedShareBasedCompensationExpenseNetOfTax

us-gaap:PerformanceShares


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value900000.0705000.01009000.0809000.040000.0752000.0433000.0507000.0745000.0668000.0620000.0739000.0628000.0361000.0343000.0188000.0186000.0173000.0-279000.0315000.0324000.0-256000.0549000.0-36000.0576000.0457000.0418000.0289000.0257000.0171000.00000
Percentage of AllocatedShareBasedCompensationExpenseNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:RestrictedStock


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value1146000.01154000.01152000.01024000.0812000.01042000.0865000.0975000.0979000.0866000.0784000.0766000.0840000.0697000.0491000.0574000.0526000.0388000.0388000.0496000.0487000.080000.0-26000.0-56000.0620000.0615000.0643000.0629000.0646000.0594000.0663000.0752000.0737000.0744000.0677000.0618000.0611000.0607000.0
Percentage of AllocatedShareBasedCompensationExpenseNetOfTax127.3163.7114.2126.62030.0138.6199.8192.3131.4129.6126.5103.7133.8193.1143.1305.3282.8224.3-139.1157.5150.3-31.2-4.7155.6107.6134.6153.8217.6251.4347.40.00.00.00.00.00.00.00.0

us-gaap:BusinessCombinationConsiderationTransferred1 wern:Acquiree

us-gaap:BusinessCombinationConsiderationTransferred1

wern:ECMTransportGroup


Business
Period End2021-07-01
Value142
Percentage of BusinessCombinationConsiderationTransferred1100.0

us-gaap:CapitalExpendituresIncurredButNotYetPaid

us-gaap:CapitalExpendituresIncurredButNotYetPaid


Capital
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value-16.85523-11.81811-1.75813122.721-8.9241511-2.91.6985.9992.735-3.7223.5430.6711.053-11.0834.6647.24-9.8861.5468.3820.5851.607-8.9478.90.5072.707-1.193.8610.025-7.882-1.55-3.72413130.6510.8872.485
Percentage of CapitalExpendituresIncurredButNotYetPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStockDividendsPerShareDeclared

us-gaap:CommonStockDividendsPerShareDeclared


Common
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.120.10.090.090.090.093.840.090.090.090.090.070.070.070.070.060.060.060.060.060.060.060.050.050.050.050.050.050.050.050.050.051.550.050.050.050.550.050.050.051.650.050.050.05
Percentage of CommonStockDividendsPerShareDeclared100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:ContractWithCustomerLiabilityRevenueRecognized


Contract
Period End2021-06-302021-03-312020-12-31
Value01500000.00
Percentage of ContractWithCustomerLiabilityRevenueRecognized0.0100.00.0

us-gaap:Depreciation

us-gaap:Depreciation


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value63636362676864626160595856555553535556515050504948454544444345424242424141403940393939373738
Percentage of Depreciation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DirectCommunicationsAndUtilitiesCosts

us-gaap:DirectCommunicationsAndUtilitiesCosts


Direct
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3.3333.0223.3333.7973.5363.8083.4973.8923.9034.0114.0353.9933.9284.1073.9474.1993.8874.0723.9964.2063.9953.9093.823.7863.8373.6783.6233.6893.4093.4993.4233.7543.1873.1423.23.3823.3443.8193.5693.8463.8433.9233.8674.0133.4943.749
Percentage of DirectCommunicationsAndUtilitiesCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DirectOperatingMaintenanceSuppliesCosts

us-gaap:DirectOperatingMaintenanceSuppliesCosts


Direct
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value49464244434545464445464745454441403840414247455046474848454545464343414444414044434138403937
Percentage of DirectOperatingMaintenanceSuppliesCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DirectTaxesAndLicensesCosts

us-gaap:DirectTaxesAndLicensesCosts


Direct
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value2323242423222424232223182222222121
Percentage of DirectTaxesAndLicensesCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsCommonStockCash

us-gaap:DividendsCommonStockCash


Dividends
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value8.1516.7926.2196.2196.2186.2292676.296.4076.4665.071
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsCommonStockCash us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Dividends
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value8.1516.7926.2196.2196.2186.2292676.296.4076.4665.071
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectOfExchangeRateOnCashAndCashEquivalents

us-gaap:EffectOfExchangeRateOnCashAndCashEquivalents


Effect
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value507000.0-419000.01188000.027000.078000.0-2073000.0364000.0-194000.0181000.045000.0-585000.0164000.0-356000.0403000.0-530000.0-127000.0277000.0430000.0121000.0-325000.0-427000.0247000.0-75000.0-276000.0-116000.0-158000.0-312000.0-191000.0-7000.026000.0-209000.0-18000.0-397000.0199000.0-112000.0304000.0-224000.0308000.0-85000.0-366000.0-15000.029000.0-40000.0856000.0-505000.0350000.0
Percentage of EffectOfExchangeRateOnCashAndCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense us-gaap:AwardType

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense

us-gaap:PerformanceShares


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value309000.0241000.0345000.0277000.013000.0258000.0146000.0173000.0256000.0228000.0213000.0253000.0214000.0124000.0219000.0120000.0120000.0110000.0-182000.0202000.0206000.0-163000.0317000.0-24000.0377000.0298000.0256000.0179000.0174000.0115000.00000
Percentage of EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:RestrictedStock


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value392000.0395000.0394000.0351000.0278000.0356000.0292000.0335000.0334000.0297000.0268000.0262000.0287000.0239000.0313000.0367000.0340000.0245000.0206000.0317000.0313000.050000.0-48000.0-36000.0404000.0402000.0394000.0393000.0434000.0401000.0433000.0421000.0486000.0491000.0461000.0420000.0416000.0413000.0
Percentage of EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense126.9163.9114.2126.72138.5138.0200.0193.6130.5130.3125.8103.6134.1192.7142.9305.8283.3222.7-113.2156.9151.9-30.7-15.1150.0107.2134.9153.9219.6249.4348.70.00.00.00.00.00.00.00.0

us-gaap:EquitySecuritiesFvNiUnrealizedGain

us-gaap:EquitySecuritiesFvNiUnrealizedGain


Equity
Period End2021-06-30
Value20
Percentage of EquitySecuritiesFvNiUnrealizedGain100.0

us-gaap:EquitySecuritiesFvNiUnrealizedGain wern:Investee

wern:TuSimple


Equity
Period End2021-06-30
Value20
Percentage of EquitySecuritiesFvNiUnrealizedGain100.0

us-gaap:FuelCosts

us-gaap:FuelCosts


Fuel
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value5850393730485959615662676559585045454340393243505752768692919192909610098991021001031109785757873
Percentage of FuelCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnSaleOfPropertyPlantEquipment

us-gaap:GainLossOnSaleOfPropertyPlantEquipment


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value13103.9783.8820.9422.4697.0274.1474.4545.9298.9764.5768.6382.7080.7672.1772.4621.3923.1823.1036.7823.3654.366.6896.6875.5044.9934.4525.1684.6473.7072.6556.5133.5334.7355.3525.6994.7474.8366.0325.6474.7752.8211.4370.5381.111
Percentage of GainLossOnSaleOfPropertyPlantEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsPayableTrade

us-gaap:IncreaseDecreaseInAccountsPayableTrade


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-1.84218-8.967.8-1.6770.354-7.005-6.0861.9123.642-4.1830.9976.9233.822-1.2765.3483.628-1.869-7.17-1.7292.8140.813-2.907-6.0917.0349.22-25.853132.8338.405-11.1064.7342.7546.411-9.937-1.387-7.037-1.811121.1340.644.9552.2812.8330.5525.173
Percentage of IncreaseDecreaseInAccountsPayableTrade100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInFairValueOfInterestRateFairValueHedgingInstruments1

us-gaap:IncreaseDecreaseInFairValueOfInterestRateFairValueHedgingInstruments1


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value360000.01303000.0581000.0401000.0-623000.0-5597000.01000000.0-1440000.0-106000.0-105000.0-122000.05000.094000.0278000.0265000.0100000.020000.0214000.0854000.0388000.0-170000.0-735000.0610000.0-605000.0150000.087000.0-749000.0-431000.0000
Percentage of IncreaseDecreaseInFairValueOfInterestRateFairValueHedgingInstruments1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:IncreaseDecreaseInOtherCurrentAssets

us-gaap:IncreaseDecreaseInOtherCurrentAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-2.593-0.5516.05515-2.32-12.1954.6921.361-0.812-6.2160.444131.529-5.32-3.9992.993-17.889-0.288-16.626176.295-12.00620-0.962-9.223-19.361270.505-4.7472.65-2.83-4.2228.81-5.1563.7744.714-9.262-16.807210.7470.92-1.666-3.57917
Percentage of IncreaseDecreaseInOtherCurrentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherCurrentLiabilities

us-gaap:IncreaseDecreaseInOtherCurrentLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-20.4651213-13.5222313-9.7871.898-12.137.9247.7467.152-3.362.509-0.4910.0335.607-5.2899.323-0.5329.99-0.49-13.3979.932-9.8763.9794.0527.88-22.27119-5.1536.07-18.06418-3.4351.59-4.8567.804-9.7534.456-9.32.3987.928-6.968
Percentage of IncreaseDecreaseInOtherCurrentLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements


Incremental
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value290000.0291000.057000.0352000.0342000.0356000.090000.0402000.0300000.0298000.064000.0316000.0232000.0236000.010000.0303000.0265000.0256000.015000.0348000.0318000.0328000.020000.0588000.0479000.0475000.0108000.0527000.0506000.0493000.0-3000.0595000.0576000.0522000.0-6000.0566000.0553000.0536000.05000.0420000.0445000.0434000.0-30000.0373000.0487000.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeInterest

us-gaap:InvestmentIncomeInterest


Investment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value334000.0297000.0308000.0323000.0377000.0626000.0678000.0756000.0989000.0903000.0658000.0646000.0693000.0740000.0752000.0766000.0876000.0914000.01004000.01055000.01109000.0990000.0787000.0760000.0697000.0631000.0609000.0614000.0660000.0655000.0640000.0589000.0535000.0505000.0521000.0461000.0433000.0422000.0421000.0337000.0345000.0345000.0412000.0432000.0355000.0337000.0
Percentage of InvestmentIncomeInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LaborAndRelatedExpense

us-gaap:LaborAndRelatedExpense


Labor
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value210204197197194205200209206202200201196182180170169160156162159156160167160151155149144134139137135133137134138133136132135132130134134128
Percentage of LaborAndRelatedExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LeaseCost

us-gaap:LeaseCost


Lease
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value3500000.03600000.002700000.02100000.02000000.02300000.02000000.02000000.02200000.0
Percentage of LeaseCost100.0100.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NotesIssued1

us-gaap:NotesIssued1


Notes
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value1.6580.9881.1580.8540.331.0991.2221.811.642.0925.0864.2381.6382.1781.7581.4591.7270.8722.4974.2094.69214149.2436.6325.9174.9583.0942.8813.4524.4095.4633.7493.4893.2782.6933.0761.5173.1193.8881.1371.0281.11.092
Percentage of NotesIssued1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingInsuranceAndClaimsCostsProduction

us-gaap:OperatingInsuranceAndClaimsCostsProduction


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value20222423253623212022242230211920191924192118201720222119192017161719161415191715161818151816
Percentage of OperatingInsuranceAndClaimsCostsProduction100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap: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
Value1000000.01000000.01000000.0900000.0900000.01000000.01100000.0900000.0900000.0900000.0
Percentage of OperatingLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseLeaseIncome

us-gaap:OperatingLeaseLeaseIncome


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value3.03.13.23.03.03.33.53.63.53.3
Percentage of OperatingLeaseLeaseIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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
Value1000000.0900000.0900000.0900000.01100000.01000000.01100000.0900000.0900000.0900000.0
Percentage of OperatingLeasePayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value360000.01303000.0581000.0401000.0-623000.0-5597000.01000000.0-1440000.0-106000.0-105000.0-122000.05000.094000.0278000.0265000.0100000.020000.0214000.0854000.0388000.0-170000.0-735000.0610000.0-605000.0324000.0-87000.0-749000.0-431000.000
Percentage of OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

us-gaap:OtherCostAndExpenseOperating

us-gaap:OtherCostAndExpenseOperating


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-7.662-6.6181.7333.0535.4883.147-0.9781.4131.5040.26-3.938-0.184-4.3660.8185.4764.0754.1744.5633.5244.5661.7173.023.5-1.652-2.142-0.6863.9392.7450.554-2.367-1.158-0.396-4.594-2.048-1.267-3.116-3.292-2.404-2.393-4.377-1.361-3.22-1.4590.0510.881-0.094
Percentage of OtherCostAndExpenseOperating100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherOperatingActivitiesCashFlowStatement

us-gaap:OtherOperatingActivitiesCashFlowStatement


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-0.4431.285-8.1310100.0881.167-1.162-0.617-2.7480.307-2.286-1.016-1.779-3.202-0.549-4.309-3.8975.13-3.288-0.206-5.0063.8153.1022.376-0.194.588-3.061-0.6230.2030.698-1.270.244-0.213-1.6031.8150.94-1.389-0.229-0.7-0.6220.478-0.9470.525
Percentage of OtherOperatingActivitiesCashFlowStatement100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value03740000.0612000.06000.05000.03930000.0708000.02000.010000.01179000.0692000.0012000.0667000.01187000.085000.019000.0341000.01209000.064000.019000.0540000.01263000.068000.025000.0368000.01881000.065000.031000.001244000.0394000.09000.0157000.0528000.0146000.0000
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:PaymentsToAcquireAdditionalInterestInSubsidiaries

us-gaap:PaymentsToAcquireAdditionalInterestInSubsidiaries


Payments
Period End2021-06-302021-03-31
Value05000000.0
Percentage of PaymentsToAcquireAdditionalInterestInSubsidiaries0.0100.0

us-gaap:ProceedsFromCollectionOfNotesReceivable

us-gaap:ProceedsFromCollectionOfNotesReceivable


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1.7671.5751.6891.8852.0762.3162.3192.7423.0793.4265.0524.1195.7835.9444.44.1474.2847.2065.3465.714.9033.3947.5614.7683.4113.7773.2553.0595.312.7663.5842.6562.2422.1974.0081.7431.7480.6233.1361.391.5571.2711.41.0691.0041.226
Percentage of ProceedsFromCollectionOfNotesReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value454439442438332639364741423832243228134130211629322324222214151319101315171315201717206.506245.782
Percentage of ProceedsFromSaleOfPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfLinesOfCredit

us-gaap:RepaymentsOfLinesOfCredit


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.025150.00.00.00.0400.00.00.00.025200.0200.00.010.010.00.00.00.00.00.00.02020204080300.00.020400.00.010.0
Percentage of RepaymentsOfLinesOfCredit0.0100.0100.00.00.00.00.0100.00.00.00.00.0100.0100.00.0100.00.00.0100.0100.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.00.00.0100.0100.00.00.0100.0

us-gaap:RepaymentsOfLongTermLinesOfCredit

us-gaap:RepaymentsOfLongTermLinesOfCredit


Repayments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value0.00.00.05050500.00.00.0200.00.00.00.030300.0400.00.00.00.0400.00.010.00.00.0300.00.00.00.0
Percentage of RepaymentsOfLongTermLinesOfCredit0.00.00.0100.0100.0100.00.00.00.0100.00.00.00.00.0100.0100.00.0100.00.00.00.00.0100.00.00.0100.00.00.0100.00.00.00.00.0

us-gaap:RepaymentsOfLongTermLinesOfCredit us-gaap:LineOfCreditFacility, us-gaap:SubsequentEventType

wern:WellsFargoBankN.A.LineofCreditFacilityMatureDateatMayFourteenTwoThousandandTwentyFour, us-gaap:SubsequentEvent


Repayments
Period End2021-01-062020-02-13
Value2550
Percentage of RepaymentsOfLongTermLinesOfCredit0.00.0

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability


Right
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312019-01-01
Value1600000.0500000.0400000.0900000.0600000.0900000.02500000.02800000.0700000.0100000.08700000.0
Percentage of RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod

us-gaap:PerformanceShares


Share
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value0047000.008000.000000000000109000.00075000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod0.00.0100.00.0100.00.00.00.00.00.00.00.00.00.00.00.0100.00.00.0100.0

us-gaap:RestrictedStock


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value9000.02000.02000.07000.036000.01000.010000.04000.02000.03000.06000.06000.02000.02000.01000.01000.01000.08000.014000.02000.03000.041000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod0.00.00.00.076.60.0125.00.00.00.00.00.00.00.00.00.00.00.012.80.00.054.7

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue

us-gaap:PerformanceShares


Share
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-1.49034.44029.3300000000000-0.670027.45
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue100.00.0100.00.0100.00.00.00.00.00.00.00.00.00.00.00.0100.00.00.0100.0

us-gaap:RestrictedStock


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value1.3135.53-0.09-0.424.331.640.390.610.1630.780.40.33-0.2328.950.02-0.110.3726.610.840.30.3320.88
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue0.00.06.00.012.50.01.30.00.00.00.00.00.00.00.00.00.00.0-125.40.00.076.1

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:PerformanceShares


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value040.93-4.690037.65-4.050032.8800037.4800026.8900026.53
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.0100.0100.00.00.0100.0100.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.0

us-gaap:RestrictedStock


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value0.5941.30.30.130.338.00.560.01-0.5133.05-1.12-0.01-0.237.632.020.05-0.1627.0126.54000
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.0100.9-6.40.00.0100.9-13.80.00.0100.50.00.00.0100.40.00.00.0100.40.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod

us-gaap:PerformanceShares


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value0100000.0000151000.000035000.000035000.000035000.000060000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod0.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.0

us-gaap:RestrictedStock


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value14000.0107000.050000.01000.010000.076000.060000.01000.07000.045000.069000.01000.04000.017000.0103000.012000.04000.00149000.08000.02000.00
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod0.0107.00.00.00.050.30.00.00.0128.60.00.00.048.60.00.00.00.00.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue

us-gaap:PerformanceShares


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value04100000.00005800000.00001200000.00001300000.00001000000.00001600000.00001100000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue0.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.0

us-gaap:RestrictedStock


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value600000.04500000.02000000.00500000.02900000.02200000.00200000.01600000.02307000.015000.0158000.0620000.03900000.0393000.0107000.004000000.0200000.054000.004200000.0200000.070000.00
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue0.0109.80.00.00.050.00.00.00.0133.30.00.00.047.70.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue

us-gaap:PerformanceShares


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value033.0400023.6100027.0700027.0700027.0700027.11
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue0.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.0

us-gaap:RestrictedStock


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value0.0234.96-1.030.01-0.5433.39-2.20-0.5833.620.460.07-0.2727.010.36-1.2125.550-0.01-1.1224.080
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue0.0105.80.00.00.0141.40.00.00.0124.20.00.00.099.80.00.00.00.00.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue


Share
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value00136000.0000249000.015000.0220000.0122000.0964000.0329000.0307000.024000.024000.040000.031000.0-45000.0100000.00600000.01687000.06000.0500000.01400000.0596000.0100000.0200000.0100000.01337000.00100000.0100000.0128000.0300000.0500000.01200000.089000.03800000.03500000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue0.00.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensation

us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensation


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value13725.0116870.0893.010297.0125200.09712.06901.046129.012267.04935.044980.0
Percentage of StockIssuedDuringPeriodSharesShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions wern:Acquiree

us-gaap:SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions

wern:ECMTransportGroup


Subsidiary
Period End2021-07-01
Value80.0
Percentage of SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions100.0

us-gaap:TreasuryStockSharesAcquired

us-gaap:TreasuryStockSharesAcquired


Treasury
Period End2021-06-302021-03-312020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value0130450.00282990.00700000.0600000.0649450.0627650.00
Percentage of TreasuryStockSharesAcquired0.0100.00.0100.00.0100.0100.0100.0100.00.0

us-gaap:TreasuryStockValueAcquiredCostMethod

us-gaap:TreasuryStockValueAcquiredCostMethod


Treasury
Period End2021-03-312020-03-312019-06-302019-03-312018-09-302018-06-30
Value5.5078.79821202322
Percentage of TreasuryStockValueAcquiredCostMethod100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStockValueAcquiredCostMethod us-gaap:StatementEquityComponents

us-gaap:TreasuryStock


Treasury
Period End2021-03-312020-03-312019-06-302019-03-312018-09-302018-06-30
Value5.5078.79821202322
Percentage of TreasuryStockValueAcquiredCostMethod100.0100.0100.0100.0100.0100.0

wern:IncreaseDecreaseInSelfInsuranceReservesNoncurrent

wern:IncreaseDecreaseInSelfInsuranceReservesNoncurrent


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-0.42-4.2123.1590.022-0.628-5.9731.652-3.873-6.027-5.94-5.47-7.019-13.791-0.29-1.043.380.352.9150.252.64.224.254.70.65-1.7-5.47.381.425-1.551.2-3.7-0.80.55-2.45-4.3-0.251.8-1.5-1.0-2.5-2.5-2.04.0-1.25-2.0-1.0
Percentage of IncreaseDecreaseInSelfInsuranceReservesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wern:PropertyAndEquipmentDisposedIncludedInOtherReceivables

wern:PropertyAndEquipmentDisposedIncludedInOtherReceivables


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value0.0150.017-5.1533.2010.7311.251171.486-0.0720.072-0.3330.7420.1980.067-0.6461.1970.0920.011-0.104-0.3470.130.4760.0210.0-0.0680.068-0.351-0.3450.2270.469-0.262-0.4080.0881.016-0.1-0.1760.2440.343-1.29-2.9883.8580.678
Percentage of PropertyAndEquipmentDisposedIncludedInOtherReceivables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wern:RentAndPurchasedTransportation

wern:RentAndPurchasedTransportation


Rent
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value150146140131120126135134146132153147151135132126124126133133127117119122124113125133128111117117115106103107108100100100988884919184
Percentage of RentAndPurchasedTransportation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wern:ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberofSharesAwardedPerEmployeePerYear

wern:ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberofSharesAwardedPerEmployeePerYear


Share
Period End2021-06-302021-03-312020-12-31
Value0500000.00
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberofSharesAwardedPerEmployeePerYear0.0100.00.0

wern:StockIssuedDuringPeriodValueStockOptionsExercisedAndTaxEffect

wern:StockIssuedDuringPeriodValueStockOptionsExercisedAndTaxEffect


Stock
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value-3.74-0.006-0.005-3.930.169-0.01-1.1790.2280.007-0.438
Percentage of StockIssuedDuringPeriodValueStockOptionsExercisedAndTaxEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wern:StockIssuedDuringPeriodValueStockOptionsExercisedAndTaxEffect us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value-0.266-3.953-0.019-0.199-4.36-0.019-0.14-1.578-0.013-0.084-1.069
Percentage of StockIssuedDuringPeriodValueStockOptionsExercisedAndTaxEffect0.0105.7316.73980.0110.9-11.21400.0133.8-5.7-1200.0244.1

us-gaap:TreasuryStock


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value0.2660.2130.0130.1940.430.1880.130.3990.2410.0910.631
Percentage of StockIssuedDuringPeriodValueStockOptionsExercisedAndTaxEffect0.0-5.7-216.7-3880.0-10.9111.2-1300.0-33.8105.71300.0-144.1

us-gaap:AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax


Accumulated
Period End2020-12-31
Value17198.0
Percentage of AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent


Allowance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value8.9888.8978.6868.8548.728.6787.9218.2468.4098.4578.6138.758.5488.4368.258.418.4349.3019.1839.088.978.797109.719.6169.933101010109.939101010101010101010109.9079.4849.167
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AociDerivativeQualifyingAsHedgeExcludedComponentAfterTax

us-gaap:AociDerivativeQualifyingAsHedgeExcludedComponentAfterTax


Aoci
Period End2020-12-31
Value5635.0
Percentage of AociDerivativeQualifyingAsHedgeExcludedComponentAfterTax100.0

us-gaap:BuildingsAndImprovementsGross

us-gaap:BuildingsAndImprovementsGross


Buildings
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value253199188171148134130132132130128128
Percentage of BuildingsAndImprovementsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerAssetNet

us-gaap:ContractWithCustomerAssetNet


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-01-01
Value8.98.96.97.87.17.35.97.99.410.07.4118.87.8
Percentage of ContractWithCustomerAssetNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiability

us-gaap:ContractWithCustomerLiability


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value2000000.01700000.01500000.01000000.01300000.01300000.01300000.01600000.02300000.02600000.01700000.02900000.02400000.02100000.0
Percentage of ContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredCompensationLiabilityClassifiedNoncurrent

us-gaap:DeferredCompensationLiabilityClassifiedNoncurrent


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value119.5887.2027.6826.927.0686.7855.7734.3113.4482.915
Percentage of DeferredCompensationLiabilityClassifiedNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredIncomeTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value318311293249387340305
Percentage of DeferredIncomeTaxLiabilities100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsGross


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value8062595494939790908785
Percentage of DeferredTaxAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value5.3741.8631.8961.9794.16816148.4379.4168.3827.087
Percentage of DeferredTaxAssetsOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value168.0677.4136.7971010
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value4070000.03690000.03628000.03599000.06135000.06138000.08260000.05672000.07813000.06913000.05648000.0
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value5448474174717476737272
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value3803000.01323000.01585000.01367000.02313000.02356000.02634000.03079000.03026000.02964000.02590000.0
Percentage of DeferredTaxLiabilitiesOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesPrepaidExpenses

us-gaap:DeferredTaxLiabilitiesPrepaidExpenses


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value6333000.04928000.04772000.04699000.07737000.07229000.06913000.06906000.06774000.06710000.0
Percentage of DeferredTaxLiabilitiesPrepaidExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value308305287243377330295282288295238
Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeFixedInterestRate us-gaap:LineOfCreditFacility

us-gaap:DerivativeFixedInterestRate

wern:BMOHarrisBankN.A.LineofCreditFacilityMatureDateatMayFourteenTwoThousandandTwentyFour


Derivative
Period End2020-12-312020-06-302020-03-312019-12-312019-09-30
Value2.360.02360.02360.02360.0236
Percentage of DerivativeFixedInterestRate100.0100.0100.0100.0100.0

wern:WellsFargoBankN.A.LineofCreditFacilityMatureDateatMayFourteenTwoThousandandTwentyFour


Derivative
Period End2020-12-312020-06-302020-03-312019-12-312019-09-30
Value2.320.02320.02320.02320.0232
Percentage of DerivativeFixedInterestRate98.398.398.398.398.3

us-gaap:DividendsPayableCurrentAndNoncurrent

us-gaap:DividendsPayableCurrentAndNoncurrent


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value8151000.06792000.06114000.06219000.06219000.06218000.06232000.06229000.06227000.06290000.06340000.06407000.06466000.05071000.05069000.0
Percentage of DividendsPayableCurrentAndNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value4841354242373838373340373530323130272629282525373231283227252228242321262322192421201817
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized


Employee
Period End2021-06-302021-03-312020-12-312020-09-30
Value15161011
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized100.0100.0100.0100.0

us-gaap:EquitySecuritiesFVNINoncurrent wern:Investee

us-gaap:EquitySecuritiesFVNINoncurrent

wern:TuSimple


Equity
Period End2021-06-30
Value25
Percentage of EquitySecuritiesFVNINoncurrent100.0

us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueAmount

us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueAmount


Equity
Period End2020-12-31
Value5000000.0
Percentage of EquitySecuritiesWithoutReadilyDeterminableFairValueAmount100.0

us-gaap:FinancingReceivableAllowanceForCreditLosses us-gaap:AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyType

us-gaap:FinancingReceivableAllowanceForCreditLosses

us-gaap:StudentLoan


Financing
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value19211921158.622
Percentage of FinancingReceivableAllowanceForCreditLosses100.0100.0100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2020-12-31
Value3696000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear


Lessee
Period End2021-06-302021-03-312020-09-30
Value1888000.02806000.0904000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear100.0100.0100.0

us-gaap:LessorOperatingLeasePaymentsToBeReceived

us-gaap:LessorOperatingLeasePaymentsToBeReceived


Lessor
Period End2021-06-302021-03-312020-12-312020-09-30
Value9444000.09317000.09703000.09611000.0
Percentage of LessorOperatingLeasePaymentsToBeReceived100.0100.0100.0100.0

us-gaap:LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths

us-gaap:LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths


Lessor
Period End2020-12-31
Value9210000.0
Percentage of LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths100.0

us-gaap:LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear

us-gaap:LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear


Lessor
Period End2021-06-302021-03-312020-09-30
Value5788000.07206000.02746000.0
Percentage of LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear100.0100.0100.0

us-gaap:LessorOperatingLeasePaymentsToBeReceivedThreeYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedThreeYears


Lessor
Period End2020-09-30
Value56000.0
Percentage of LessorOperatingLeasePaymentsToBeReceivedThreeYears100.0

us-gaap:LessorOperatingLeasePaymentsToBeReceivedTwoYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedTwoYears


Lessor
Period End2021-06-302021-03-312020-12-312020-09-30
Value3656000.02111000.0493000.06809000.0
Percentage of LessorOperatingLeasePaymentsToBeReceivedTwoYears100.0100.0100.0100.0

us-gaap:LettersOfCreditOutstandingAmount

us-gaap:LettersOfCreditOutstandingAmount


Letters
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312015-12-31
Value505050443231
Percentage of LettersOfCreditOutstandingAmount100.0100.0100.0100.0100.0100.0

us-gaap:LettersOfCreditOutstandingAmount wern:EmployeeBenefits

wern:InsuranceCarriersLettersOfCredit


Letters
Period End2020-12-31
Value39
Percentage of LettersOfCreditOutstandingAmount76.6

us-gaap:LifeInsuranceCorporateOrBankOwnedAmount

us-gaap:LifeInsuranceCorporateOrBankOwnedAmount


Life
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value9104000.08284000.06588000.07059000.05821000.06216000.06055000.05186000.03971000.03147000.02663000.0
Percentage of LifeInsuranceCorporateOrBankOwnedAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LineOfCredit

us-gaap:LineOfCredit


Line
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value3001752001751752503003503901251251259575757575130180150145757575757575754040
Percentage of LineOfCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LineOfCredit us-gaap:LineOfCreditFacility

wern:AdditionalOutstandingDebtUnderCreditFacilities


Line
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-03-312016-12-312016-09-302016-06-30
Value2550252510015020031550505020551057570
Percentage of LineOfCredit14.325.014.314.340.050.057.180.840.040.040.021.142.358.350.048.3

wern:AdditionalOutstandingDebtUnderCreditFacilitiesBMO


Line
Period End2021-06-30
Value100
Percentage of LineOfCredit33.3

wern:AdditionalOutstandingDebtUnderCreditFacilitiesWellsFargo


Line
Period End2021-06-30
Value50
Percentage of LineOfCredit16.7

us-gaap:LineOfCreditFacilityInterestRateAtPeriodEnd us-gaap:LineOfCreditFacility

us-gaap:LineOfCreditFacilityInterestRateAtPeriodEnd

wern:AdditionalOutstandingDebtUnderCreditFacilities


Line
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-03-312016-12-312016-09-302016-06-30
Value0.780.820.830.00860.0150.02330.02670.03070.03030.03010.02680.0270.01530.0130.01080.010257
Percentage of LineOfCreditFacilityInterestRateAtPeriodEnd100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wern:AdditionalOutstandingDebtUnderCreditFacilitiesBMO


Line
Period End2021-06-30
Value1.28
Percentage of LineOfCreditFacilityInterestRateAtPeriodEnd0.0

wern:AdditionalOutstandingDebtUnderCreditFacilitiesWellsFargo


Line
Period End2021-06-30
Value0.77
Percentage of LineOfCreditFacilityInterestRateAtPeriodEnd0.0

wern:BMOHarrisBankN.A.LineofCreditFacilityMatureDateatMayFourteenTwoThousandandTwentyFour


Line
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value0.790.810.850.860.00880.02220.0240.0279
Percentage of LineOfCreditFacilityInterestRateAtPeriodEnd0.0103.8103.7103.6102.3148.0103.0104.5

wern:WellsFargoBankN.A.LineofCreditFacilityMatureDateatMayFourteenTwoThousandandTwentyFour


Line
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value0.760.780.830.830.00850.01680.02390.0272
Percentage of LineOfCreditFacilityInterestRateAtPeriodEnd0.0100.0101.2100.098.8112.0102.6101.9

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity


Line
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value600500500500575575575575575325325325325325325325325325325325325325325325325325325325250250250250250250250250250225225225225
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity us-gaap:LineOfCreditFacility

wern:AdditionalOutstandingDebtUnderCreditFacilitiesBMO


Line
Period End2021-06-30
Value100
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity16.7

us-gaap:LinesOfCreditCurrent

us-gaap:LinesOfCreditCurrent


Lines
Period End2021-06-302020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value5.0250.07575750.07575750.00.00.025200.00.00.00.00.00.0200.00.00.00.0
Percentage of LinesOfCreditCurrent100.0100.00.0100.0100.0100.00.0100.0100.0100.00.00.00.0100.0100.00.00.00.00.00.00.0100.00.00.00.00.0

us-gaap:LoansAndLeasesReceivableGrossCarryingAmount us-gaap:AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyType

us-gaap:LoansAndLeasesReceivableGrossCarryingAmount

us-gaap:StudentLoan


Loans
Period End2020-12-312019-12-312018-12-31
Value606153
Percentage of LoansAndLeasesReceivableGrossCarryingAmount100.0100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths


Long
Period End2021-06-302020-12-31
Value2.525
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive


Long
Period End2020-09-30
Value175
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour


Long
Period End2021-06-302021-03-312020-12-31
Value287175175
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour100.0100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree


Long
Period End2021-06-30
Value5000000.0
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo


Long
Period End2021-06-30
Value5000000.0
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo100.0

us-gaap:LongTermLineOfCredit

us-gaap:LongTermLineOfCredit


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value295175175175175175225275390505050957575757510516015014575757575757575404040504040700.00.00.00.0
Percentage of LongTermLineOfCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:LossContingencyEstimateOfPossibleLoss us-gaap:LossContingenciesByNatureOfContingency

us-gaap:LossContingencyEstimateOfPossibleLoss

wern:May172018Verdict


Loss
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2624232221201817171615
Percentage of LossContingencyEstimateOfPossibleLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:MinorityInterestOwnershipPercentageByNoncontrollingOwners

us-gaap:MinorityInterestOwnershipPercentageByNoncontrollingOwners


Minority
Period End2020-12-31
Value5.0
Percentage of MinorityInterestOwnershipPercentageByNoncontrollingOwners100.0

us-gaap:NotesAndLoansReceivableGrossCurrent

us-gaap:NotesAndLoansReceivableGrossCurrent


Notes
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value3.8075.6957.563111411-8.464-8.8955.514-4.9-7.567
Percentage of NotesAndLoansReceivableGrossCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NotesAndLoansReceivableGrossNoncurrent

us-gaap:NotesAndLoansReceivableGrossNoncurrent


Notes
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value151922253734171613127.548
Percentage of NotesAndLoansReceivableGrossNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NotesAndLoansReceivableNetCurrent us-gaap:AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyType

us-gaap:NotesAndLoansReceivableNetCurrent

us-gaap:StudentLoan


Notes
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value12118.3936.3267.354.747
Percentage of NotesAndLoansReceivableNetCurrent100.0100.0100.0100.0100.0100.0

us-gaap:NotesAndLoansReceivableNetNoncurrent us-gaap:AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyType

us-gaap:NotesAndLoansReceivableNetNoncurrent

us-gaap:StudentLoan


Notes
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value28282520116.067
Percentage of NotesAndLoansReceivableNetNoncurrent100.0100.0100.0100.0100.0100.0

us-gaap:NotesReceivableGross

us-gaap:NotesReceivableGross


Notes
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1924293752452525191615
Percentage of NotesReceivableGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NotesReceivableGross us-gaap:AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyType

wern:IndependentContractors


Notes
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1015182846381918129.3047.264
Percentage of NotesReceivableGross52.360.562.377.190.083.773.771.664.454.948.1

wern:OtherDebtors


Notes
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value9.4259.805118.4895.1897.4746.787.3316.9077.6297.851
Percentage of NotesReceivableGross47.739.537.722.910.016.326.328.435.645.151.9

us-gaap:NotesReceivableNet us-gaap:AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyType

us-gaap:NotesReceivableNet

us-gaap:StudentLoan


Notes
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value403933271810
Percentage of NotesReceivableNet100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent


Operating
Period End2021-06-302021-03-312020-12-312020-09-30
Value3.183.33.33.38
Percentage of OperatingLeaseWeightedAverageDiscountRatePercent100.0100.0100.0100.0

us-gaap:OtherReceivables

us-gaap:OtherReceivables


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value2544232824225244232226271917262715151513201717202122202220111012109.6218.0049.9579.6939.3749.2137.67910101010
Percentage of OtherReceivables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PropertyPlantAndEquipmentOther

us-gaap:PropertyPlantAndEquipmentOther


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value281268250256229209210200190180170177
Percentage of PropertyPlantAndEquipmentOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PropertyPlantAndEquipmentSalvageValuePercentage us-gaap:PropertyPlantAndEquipmentByType

us-gaap:PropertyPlantAndEquipmentSalvageValuePercentage

wern:Tractors


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value00000000000.25
Percentage of PropertyPlantAndEquipmentSalvageValuePercentage0.00.00.00.00.00.00.00.00.00.0100.0

us-gaap:PurchaseCommitmentRemainingMinimumAmountCommitted

us-gaap:PurchaseCommitmentRemainingMinimumAmountCommitted


Purchase
Period End2021-06-302021-03-312020-12-312020-09-30
Value269164131133
Percentage of PurchaseCommitmentRemainingMinimumAmountCommitted100.0100.0100.0100.0

us-gaap:SelfInsuranceReserveCurrent

us-gaap:SelfInsuranceReserveCurrent


Self
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-31
Value65917681807269917069676564737984757483717265647359
Percentage of SelfInsuranceReserveCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SelfInsuranceReserveNoncurrent

us-gaap:SelfInsuranceReserveNoncurrent


Self
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-31
Value236235231234234234228229225219214208202108108107110110113114116120125123131
Percentage of SelfInsuranceReserveNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber

us-gaap:PerformanceShares


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value236000.0236000.0262000.0229000.0229000.0276000.0327000.0269000.0269000.0269000.0207000.0207000.0207000.0207000.0158000.0158000.0158000.0158000.0124000.0233000.0233000.0233000.0258000.0183000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStock


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value362000.0372000.0367000.0389000.0393000.0425000.0369000.0411000.0414000.0410000.0326000.0366000.0372000.0369000.0273000.0348000.0360000.0354000.0293000.0389000.0399000.0404000.0445000.0643000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber153.4157.6140.1169.9171.6154.0112.8152.8153.9152.4157.5176.8179.7178.3172.8220.3227.8224.1236.3167.0171.2173.4172.5351.4

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:PerformanceShares


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value34.6135.4232.9634.6834.6834.6428.7530.429.8329.8327.9228.330.3131.3927.227.227.227.227.3326.8626.8626.8627.2325.06
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStock


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value38.1637.735.7834.734.5734.3532.8332.0232.0232.1231.9331.0330.9830.8127.6926.2426.1526.1725.9824.6924.6624.6724.3222.92
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue110.3106.4108.6100.199.799.2114.2105.3107.3107.7114.4109.6102.298.2101.896.596.196.295.191.991.891.889.391.5

us-gaap:UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued

us-gaap:UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value400000.0400000.0400000.0400000.01100000.01400000.01700000.01700000.03600000.03384000.02995000.0
Percentage of UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1800000.02000000.02000000.02300000.03900000.05000000.05500000.05500000.07400000.06920000.04761000.0
Percentage of UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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
Value8.6867.9218.6138.259.18310
Percentage of ValuationAllowancesAndReservesBalance100.0100.0100.0100.0100.0100.0

us-gaap:StudentLoan


Valuation
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value19211921158.6221714
Percentage of ValuationAllowancesAndReservesBalance223.9269.1224.8254.9170.883.70.00.0

wern:LeaseholdImprovementstoLandTotalCost us-gaap:RelatedPartyTransactionsByRelatedParty

wern:LeaseholdImprovementstoLandTotalCost

us-gaap:PrincipalOwner


Leasehold
Period End2020-12-31
Value7000000.0
Percentage of LeaseholdImprovementstoLandTotalCost100.0

wern:LeaseholdImprovementstoLandTotalCostLessAccumulatedDepreciation us-gaap:RelatedPartyTransactionsByRelatedParty

wern:LeaseholdImprovementstoLandTotalCostLessAccumulatedDepreciation

us-gaap:PrincipalOwner


Leasehold
Period End2020-12-31
Value2400000.0
Percentage of LeaseholdImprovementstoLandTotalCostLessAccumulatedDepreciation100.0

wern:PrepaidTaxesLicensesAndPermits

wern:PrepaidTaxesLicensesAndPermits


Prepaid
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value7.9712177.3287.912167.4628.00812167.3277.69811156.9357.36511156.9497.6211156.9747.37411146.5036.89411156.5977.03911146.5687.03711153.7187.298111414
Percentage of PrepaidTaxesLicensesAndPermits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wern:RevenueEquipmentGross

wern:RevenueEquipmentGross


Revenue
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value179818121750163016761530141313641335128412201246
Percentage of RevenueEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wern:SelfInsuranceRetentionLiability

wern:SelfInsuranceRetentionLiability


Self
Period End2020-12-312019-12-312018-12-312017-12-312017-07-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value10000000.03000000.03000000.03000000.02000000.02000000.02000000.02000000.02000000.02000000.02000000.02000000.02000000.0
Percentage of SelfInsuranceRetentionLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Line plots across dimensions of each concept


Operating Margin
us-gaap:StatementBusinessSegments
(None,)
Operating  Marginus-gaap: Statement Business Segments
TTM Greenblatt ROC
_
(None,)
T T M  Greenblatt  R O C_
us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:AwardType
(None,)
Allocated Share Based Compensation Expenseus-gaap: Award Type
us-gaap:ComprehensiveIncomeNetOfTax
us-gaap:StatementEquityComponents
(None,)
Comprehensive Income Net Of Taxus-gaap: Statement Equity Components
us-gaap:OperatingIncomeLoss
us-gaap:StatementBusinessSegments
(None,)
Operating Income Lossus-gaap: Statement Business Segments
us-gaap:Revenues
us-gaap:StatementBusinessSegments
(None,)
Revenuesus-gaap: Statement Business Segments
us-gaap:Revenues
us-gaap:StatementGeographical
(None,)
Revenuesus-gaap: Statement Geographical
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components
us-gaap:PropertyPlantAndEquipmentNet
us-gaap:StatementGeographical
(None,)
Property Plant And Equipment Netus-gaap: Statement Geographical
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components