SAIA


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

Table of contents



us-gaap:CommonStockValue

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:CostsAndExpenses

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit

us-gaap:InterestExpense

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:NonoperatingIncomeExpense

us-gaap:OperatingIncomeLoss

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:ProfitLoss

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

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:OtherAssetsCurrent

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:Goodwill

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:IntangibleAssetsNetIncludingGoodwill

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent

us-gaap:AccountsPayableCurrent

us-gaap:LiabilitiesCurrent

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OtherLiabilitiesCurrent
us-gaap:CreditFacility
us-gaap:LongTermDebt
us-gaap:CreditFacility, us-gaap:DebtInstrument

us-gaap:LongTermDebtAndCapitalLeaseObligations

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:CommonStockValue

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DepreciationDepletionAndAmortization

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:ProfitLoss

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:DeferredTaxLiabilities

us-gaap:UnrecognizedTaxBenefits
us-gaap:LossContingenciesByNatureOfContingency
saia:DecreaseInInsurancePremiumExpenses

saia:DirectorDeferredValueActivity
us-gaap:StatementEquityComponents

saia:EffectOfOtherCommonStockEquivalents

saia:FuelOperatingExpensesAndSupplies
us-gaap:UnusualRiskOrUncertaintyByNature
saia:OneTimeBonusPaidPerEmployee
us-gaap:UnusualRiskOrUncertaintyByNature
saia:OneTimeBonusPayment
us-gaap:Range
saia:PercentageOfRevenue
us-gaap:StatementEquityComponents
saia:PurchaseOfSharesByDeferredCompensationTrust

saia:PurchasedTransportation
us-gaap:StatementEquityComponents
saia:SaleOfSharesByDeferredCompensationTrust

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation
us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions
us-gaap:StatementEquityComponents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect

us-gaap:DirectTaxesAndLicensesCosts

us-gaap:FinanceLeasePrincipalPayments

us-gaap:GainLossOnSaleOfPropertyPlantEquipment

us-gaap:IncreaseDecreaseInOperatingCapital

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:LaborAndRelatedExpense

us-gaap:OperatingInsuranceAndClaimsCostsProduction

us-gaap:OtherNoncashIncomeExpense

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:ProceedsFromLinesOfCredit

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:RepaymentsOfLinesOfCredit

saia:ClaimsInsuranceAndOtherNoncurrent

saia:DeferredTaxAssetsClaimsAndInsurance

saia:DeferredTaxLeaseAssets

saia:DeferredTaxLeaseLiabilities
us-gaap:PropertyPlantAndEquipmentByType
saia:FinanceLeaseAccumulatedDepreciation
us-gaap:BalanceSheetLocation
saia:FinanceLeaseAccumulatedDepreciationAndAmortization
us-gaap:PropertyPlantAndEquipmentByType
saia:FinanceLeaseRightOfUseAssetGross

saia:LongTermDebtAndFinanceLeaseLiabiliity

saia:LongTermDebtAndFinanceLeaseLiabilityCurrent

saia:LongTermDebtAndFinanceLeaseLiabilityIncludingCurrentMaturities

saia:LongTermDebtAndFinanceLeaseLiabilityIncludingInterestOnFinanceLeases

saia:LongTermDebtAndFinanceLeaseLiabilityMaturitiesRepaymentsOfPrincipalAfterYearFive

saia:LongTermDebtAndFinanceLeaseLiabilityMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

saia:LongTermDebtAndFinanceLeaseLiabilityMaturitiesRepaymentsOfPrincipalInYearFive

saia:LongTermDebtAndFinanceLeaseLiabilityMaturitiesRepaymentsOfPrincipalInYearFour

saia:LongTermDebtAndFinanceLeaseLiabilityMaturitiesRepaymentsOfPrincipalInYearThree

saia:LongTermDebtAndFinanceLeaseLiabilityMaturitiesRepaymentsOfPrincipalInYearTwo

saia:LongTermDebtAndFinanceLeaseLiabilityMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear

us-gaap:AccruedEmployeeBenefitsCurrent

us-gaap:AccruedInsuranceCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivable

us-gaap:CommonStockIssuedEmployeeTrustDeferred

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:FinanceLeaseLiability

us-gaap:FinanceLeaseLiabilityPaymentsDue

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount
us-gaap:BalanceSheetLocation
us-gaap:FinanceLeaseRightOfUseAsset

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:IncomeTaxesReceivable

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

us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent

us-gaap:LongTermDebtFairValue
us-gaap:LongtermDebtType
us-gaap:LongtermDebtWeightedAverageInterestRate

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLeasesFutureMinimumPaymentsDue

us-gaap:OperatingLeasesFutureMinimumPaymentsDueCurrent

us-gaap:OperatingLeasesFutureMinimumPaymentsDueInFiveYears

us-gaap:OperatingLeasesFutureMinimumPaymentsDueInFourYears

us-gaap:OperatingLeasesFutureMinimumPaymentsDueInThreeYears

us-gaap:OperatingLeasesFutureMinimumPaymentsDueInTwoYears

us-gaap:OperatingLeasesFutureMinimumPaymentsDueThereafter

us-gaap:PrepaidExpenseCurrent
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:TaxCreditCarryforwardAmount

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued

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

us-gaap:WorkersCompensationDiscountAmount

Plots across concepts


IncomeStatement
Net Income Loss
Expenses
Other Nonoperating Income Expense
Balance Sheet
Finite Lived Intangible Assets Net
Assets
Cash And Cash Equivalents At Carrying Value
Current Assets
Other Assets Current
NonCurrent Assets
Finite Lived Intangible Assets Net
PropertyPlantAndEquipmentNet
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
Liabilities
Operating Lease Liability
Current Liabilities
Operating Lease Liability Current
Noncurrent Liabilities
Long Term Debt And Capital Lease Obligations
Stockholders Equity
Common Stock Value
CashFlow
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInOperatingActivities
Gain Loss On Sale Of Property Plant Equipment
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
Shares
Weighted Average Number Of Shares Outstanding Basic
OperatingLeaseLiability
Operating Lease Liability Current
NonoperatingIncomeExpense
Nonoperating Income Expense
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Due Year Four
FiniteLivedIntangibleAssets
Finite Lived Intangible Assets Net

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:CommonStockValue ███████████████▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▁▁▁▁▁▁▁▁0.0260.0260.0260.0260.0260.0260.0260.0260.0260.0260.0260.0260.0260.0260.0260.0250.0250.0250.0250.0250.0250.0250.0250.0250.0250.0250.0250.0250.0250.0250.0240.0240.0240.0160.0160.0160.0160.0160.0160.0160.016NA0.016NANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding █▁26.70426.671NA26.61526.56926.492NA26.4626.40626.322NA26.35426.35426.308NA26.11326.025.971NA25.65825.58325.445NA25.55525.56125.513NA25.50525.44725.361NA25.26925.21816.632NA16.57516.51416.358NA0.016160.01618816.119NA0.0160940.016124
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic █▁26.33226.285NA26.1526.13426.07NA25.97825.95825.873NA25.79225.76625.698NA25.52725.50125.225NA25.03825.0324.998NA24.96324.93624.803NA24.52724.48424.382NA24.2224.16315.99NA15.915.88515.833NA0.01580.01579115.768NA0.0157190.015703
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount ▁█0.019250.020164NANA0.048840.069211NA0.103920.1132510.127642NA0.045150.045150.063062NA0.0631040.2046280.226164NA0.402770.5163120.554672NA0.1255360.1255360.07448NA8.7e-050.1149760.25988NA0.1486470.1021050.0NA0.108030.108030.394759NA0.4060520.199689NANANANA
us-gaap:EarningsPerShareBasic █▅▆▆▄▄▃▅▅▃▄▄▄▃▆▃▃▂▂▃▂▂▂▂▃▂▃▃▃▂▂▂▃▃▂▃▃▂▁▂▂▁▁▁▁2.371.421.541.591.091.080.821.271.430.860.981.091.180.821.870.560.690.450.410.550.530.420.460.470.770.510.550.660.550.350.330.530.560.570.340.580.750.350.160.310.210.050.0399999999999999940.160.13
us-gaap:EarningsPerShareDiluted █▅▅▆▄▄▃▅▅▃▄▄▄▃▆▃▃▂▂▃▂▂▂▂▃▂▂▃▂▂▂▂▃▃▂▃▃▂▁▂▂▁▁▁▁2.341.41.511.561.071.060.811.251.40.850.971.071.150.81.820.550.680.440.40.540.520.420.460.460.750.490.530.640.530.340.320.510.540.550.330.560.720.340.150.30.210.040.0399999999999999940.160.12
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
 TTM Greenblatt ROC _ _█▅▅▆▄▄▃▅▅▃▄▄▄▃▃▃▃▂▂▃▃▂▂▂▃▃▂▃▃▂▂▃▃▂▂▂▃▂▁▁▁▁82.92548.71450.64855.21635.68138.77627.4345.35951.16628.63133.33638.69741.56527.57922.89824.60229.71817.51917.18722.64421.72117.58417.61619.84531.28121.23320.57227.14922.74115.23114.69221.93523.25914.53210.07816.41621.19211.0486.189.628.2564.09NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:CostsAndExpenses █▆▅▅▃▄▅▅▅▃▃▃▃▂▁▁▁488.408435.36425.834426.158382.433407.62415.635423.532413.029381.953373.414386.865387.167365.226337.269332.442334.718NANANANANANANA292.199271.789289.076305.395307.658284.499264.963271.152269.298259.263254.349261.608266.346257.642246.84258.665257.645238.928222.628228.115225.468
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest █▅▅▆▄▄▃▅▅▃▄▄▄▃▃▃▃▂▂▃▃▂▂▃▄▃▃▃▃▂▂▃▃▂▂▂▃▂▁▂▁▁▁▁▁82.52147.99350.1854.43334.83836.82726.15643.51149.40327.58231.69837.42640.25326.45621.75823.4228.0916.5116.23321.56520.49316.62816.71118.76630.22120.26519.61526.06921.59913.94513.14520.2621.6713.078.44114.51919.09.1793.9237.3045.321.183-0.4834.1733.126
us-gaap:IncomeTaxExpenseBenefit █▇▆▇▆▆▆▇▇▆▆▆▆▆▁▆▇▆▆▆▆▆▆▆▇▆▆▆▆▆▆▆▆▆▅▆▆▆▅▅▅▅▅▅▅20.04710.7029.94412.8946.3848.7164.73710.54312.335.3236.3189.2319.9725.331-26.0019.01310.4875.1235.8857.7397.2186.0535.3246.98910.9747.666.0469.7918.0315.3695.0817.3528.173.9153.0355.2637.1493.6441.452.4751.9620.47-1.1881.6781.146
us-gaap:InterestExpense ▁▁▂▂▃▃▃▄▄▃▃▃▃▂▂▃▃▁▁▂▂▁▁▂▂▂▂▂▂▃▃▄▄▃▄▅▅▅▆▅██▆▆▇0.8340.8521.0071.1741.5941.4021.5341.8681.9031.3831.3281.411.4541.2261.2891.3131.5380.9110.9841.1831.2640.9630.9811.0331.0741.0191.0071.0641.1771.3161.5841.761.6181.5281.7071.9412.1951.9642.3212.1942.9552.9982.3752.4692.685
us-gaap:NetIncomeLoss █▅▅▆▄▄▃▅▅▃▄▄▄▃▆▃▃▂▂▂▂▂▂▂▃▂▂▃▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁62.47437.29140.23641.53928.45428.11121.41932.96837.07322.25925.3828.19530.28121.12547.75914.40717.60311.38710.34813.82613.27510.57511.38711.77719.24712.60513.56916.27813.5688.5768.06412.90813.59.1555.4069.25611.8515.5352.4734.8293.3580.7130.7052.4951.98
us-gaap:NonoperatingIncomeExpense █▇█▇▇▄▆▄▄▆▅▆▅▆▆▆▅▆▆▆▆▆▇▆▆▆▆▆▆▆▅▄▅▅▅▄▃▄▃▃▁▁▃▃▂-0.404-0.721-0.468-0.783-0.843-1.949-1.274-1.848-1.763-1.049-1.638-1.271-1.312-1.123-1.14-1.182-1.628-1.009-0.954-1.079-1.228-0.956-0.905-1.079-1.06-0.968-0.957-1.08-1.142-1.286-1.547-1.675-1.589-1.462-1.637-1.897-2.192-1.869-2.257-2.316-2.936-2.907-2.287-2.374-2.748
us-gaap:OperatingIncomeLoss █▅▅▆▄▄▃▅▅▃▄▄▄▃▃▃▃▂▂▃▃▂▂▃▄▃▃▃▃▂▂▃▃▂▂▂▃▂▁▂▂▁▁▁▁82.92548.71450.64855.21635.68138.77627.4345.35951.16628.63133.33638.69741.56527.57922.89824.60229.71817.51917.18722.64421.72117.58417.61619.84531.28121.23320.57227.14922.74115.23114.69221.93523.25914.53210.07816.41621.19211.0486.189.628.2564.091.8046.5475.874
us-gaap:OtherNonoperatingIncomeExpense ▆▅▇▆█▁▅▄▅▆▂▅▅▅▅▅▃▃▄▅▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▃▄▄▄▄▄0.430.1310.5390.3910.751-0.5470.260.020.140.334-0.310.1390.1420.1030.1490.131-0.09-0.0980.030.1040.0360.0070.076-0.0460.0140.0510.05-0.0160.0350.030.0370.0850.0290.0660.070.0440.0030.0950.064-0.1220.0190.0910.0880.095-0.063
us-gaap:ProfitLoss █▄▅▅▃▃▂▄▄▂▃▃▃▂▆▁62.47437.29140.23641.53928.45428.11121.41932.96837.07322.25925.3828.19530.28121.12547.7914.373NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax █▆▆▆▅▅▅▆▆▅▅▅▅▄▄▄▄▃▃▃▃▂▂▃▃▂▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁571.333484.074476.482481.374418.114446.396443.065468.891464.195410.584406.75425.562428.732392.805360.196357.01364.404323.09300.223316.442311.905289.911287.61317.199323.48293.022309.648332.544330.399299.73279.655293.087292.557273.795264.427278.024287.538268.69253.02268.285265.901243.018224.432234.662231.342
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:Assets ██▇█▇█▇▇▆▆▅▅▅▄▄▄▄▄▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁1647.3951610.5851548.7741565.681538.21577.2591415.6931422.2721352.121246.8571133.7431088.0921085.9581015.547967.647952.719940.33927.196800.37808.612828.907795.705729.193750.987756.339739.523686.445679.494682.691643.845616.801605.675600.517535.054519.688542.262531.864514.924474.886474.0460.149NA452.157NANA
us-gaap:LiabilitiesAndStockholdersEquity ██▇█▇█▇▇▆▆▅▅▅▄▄▄▄▄▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁1647.3951610.5851548.7741565.681538.21577.2591415.6931422.2721352.121246.8571133.7431088.0921085.9581015.547967.647952.719940.33927.196800.37808.612828.907795.705729.193750.987756.339739.523686.445679.494682.691643.845616.801605.675600.517535.054519.688542.262531.864514.924474.886474.0460.149NA452.157NANA
us-gaap:StockholdersEquity █▇▇▇▆▆▆▆▅▅▅▅▅▄▄▄▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁1063.158997.618961.288918.466875.09843.387815.226792.371757.502717.65695.864669.291639.974607.394582.547531.753515.0495.467483.078468.89454.196438.768427.889413.828400.992379.253366.906349.103330.238314.734304.792294.842281.246264.003254.519248.279238.196225.576219.301216.539211.376NA206.358NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:AssetsCurrent ██▅▆▅▆▄▅▅▄▃▄▄▄▃▃▃▂▂▂▂▂▂▂▃▃▃▃▃▂▂▂▂▂▁▁▁▁▁▁▁353.881348.315271.696280.117269.643305.908232.379249.709261.389241.087213.373224.657232.687225.999203.581200.599197.63184.648166.479166.402172.141175.435158.989185.737193.997196.018189.636193.46194.515186.368170.253169.153167.402159.619144.163156.741151.692150.018142.816147.999155.396NA153.496NANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ██▄▄▅▇▁▁▁▁▁▁▁▁▂▁▁▁▁▁▁▁▁▂▁▁▂▂▁▁▁▂▁▁▁▁▁▁▁▁▂▄▅▅▃52.8653.2625.30825.46929.2846.9090.2480.0150.5030.0312.1940.5291.1890.4964.720.0810.3990.7111.5390.7890.360.2380.1244.543.6630.1964.3677.2441.7880.8420.1594.062.8720.4370.3210.8040.8260.061.3173.52210.71622.00129.04527.20813.629
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents ██▄▄▅▇▁▁▁▁▁▁52.8653.2625.30825.46929.2846.9090.2480.0150.5030.0312.1940.529NANA4.72NANANA1.539NANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AccountsReceivableNetCurrent █▇▆▆▅▆▅▆▆▅▄▅▅▅▄▄▄▃▂▃▃▂▂▂▃▃▂▃▃▃▂▂▂▂▁▂▂▂▁▁▁261.113242.895216.899226.677205.131210.894196.119218.0227.046202.133181.612197.973200.644191.437170.61172.119167.012148.968135.083143.461142.331137.607124.222139.041146.202140.33128.367146.597148.85141.917117.937127.542130.929126.597106.814124.822123.697120.743107.436115.166114.661NA94.569NANA
us-gaap:OtherAssetsCurrent NANA9.888NANANA9.182NANANA7.121NANANA7.047NANANA5.499NANANA4.701NANANA5.42NANANA5.083NANANA4.341NANANA5.127NANANA4.887NANA
us-gaap:PrepaidExpenseAndOtherAssetsCurrent ▅▇▄▄▅▆▄▄▅▅▄▃▄▅▂▄▄▅▂▃▄▅▁▆▆█▁▅▆▆▁▅▅▄▁▄▃▄▁▄▄38.3152.1629.39327.97134.08241.56327.72431.69433.8438.92329.56726.15530.85434.06617.5428.39930.21934.96917.36922.15229.4537.5914.19742.15644.13255.49213.68739.61943.87743.60913.15637.55133.60132.58511.5431.11527.16929.21511.57229.31130.019NA29.882NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:PropertyPlantAndEquipmentGross ████▇▇▇▇▆▆▆▅▅▅▄▄▄▄▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁1983.9231918.2791901.2441903.3831862.0481834.7681739.2221735.0191665.5571553.9381521.3411445.0491419.3591334.5571289.9941260.8561233.9061216.7111101.9461104.4951107.0011056.435995.514975.874957.345924.466891.145869.573863.193820.386797.527787.677787.616722.265718.527722.128718.956700.132669.345659.406632.669NA610.572NANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment ██▇▇▇▆▆▆▆▅▅▅▅▄▄▄▄▃▃▃▃▃▃▃▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁826.983796.511765.217762.264743.345712.882686.623693.895674.22648.408628.283609.324594.678573.699554.214538.065520.682504.324497.827492.577481.088467.212456.335443.33429.698417.271407.505397.458389.041377.108365.301365.798369.346361.364356.823353.328346.762342.987344.89340.583335.177NA319.634NANA
us-gaap:PropertyPlantAndEquipmentNet ██████▇▇▇▆▆▅▅▅▅▄▄▄▃▄▄▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▁▁▁▁1156.941121.7681136.0271141.1191118.7031121.8861052.5991041.124991.337905.53893.058835.725824.681760.858735.78722.791713.224712.387604.119611.918625.913589.223539.179532.544527.647507.195483.64472.115474.152443.278432.226421.879418.27360.901361.704368.8372.194357.145324.455318.823297.492NA290.938NANA
us-gaap:Goodwill NANA12.105NANANA12.105NANANA12.105NANANA12.105NANANA12.10525.81526.23226.64912.02527.38129.4230.9875.2318.3288.4818.6355.2318.9439.0989.255.2315.231NANANANANANANANANA
us-gaap:FiniteLivedIntangibleAssetsNet NANA8.216NANANA9.379NANANA10.559NANANA11.922NANANA13.293NANANA14.961NANANA2.943NANANA3.558NANANA4.1739.5581.3051.3781.451.5481.645NA1.84NANA
us-gaap:IntangibleAssetsNetIncludingGoodwill ▁▁▂▂▂▃▃▄▄▄▅▅▅▆▆▇▇██19.73920.0320.32120.61120.90221.19321.48421.77522.06622.35622.66423.00523.34623.68624.02724.36824.70925.05425.398NANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OperatingLeaseRightOfUseAsset ▆▆▇▇██▅▅▁▁105.965111.737113.715117.487122.401122.652103.89103.6571.76572.46NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent █▆▄▃▄▃▂▃▃▂▂▂▂▂▁▂▂▂▁▁▂▁▁▂▂▂▂▃▃▃▃▃▃▂▁▄▄▃▃▃▃10.878.7357.0156.3466.5515.625.3416.0145.5635.4244.6484.7055.2445.0044.2594.9614.7675.1074.3744.4774.6214.3984.0395.3255.2755.3234.9955.5915.5435.5645.5335.75.7475.2844.4177.1636.6736.3836.1655.635.616NA5.883NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:AccountsPayableCurrent ▆█▅▆▅▅▅▅▄▄▄▃▄▃▃▃▂▄▂▂▂▃▂▃▂▃▁▃▃▃▂▂▃▂▁▂▂▂▁▁▁100.499121.61389.38197.0681.51691.39583.62184.85777.52171.98378.99462.02571.04565.86657.71763.74255.74670.97145.14948.12949.67959.72354.75459.50449.93957.34642.38857.4662.88566.09850.79948.97459.59753.47643.70652.44249.03354.30739.78338.23141.146NA37.745NANA
us-gaap:LiabilitiesCurrent ▇█▇▇▆▆▆▆▅▅▄▄▄▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁284.895307.258275.754275.691248.094249.047241.246244.081237.19211.466209.31209.751205.577178.677167.205183.499167.701174.355144.944153.401144.939150.505141.38154.493149.015147.041130.479153.281153.452155.869140.857143.241147.645147.188141.3149.624141.88143.796124.348120.642115.671NA105.766NANA
us-gaap:OperatingLeaseLiabilityCurrent ▆█▇▅▂▁▂19.76420.33620.20919.70118.91618.68919.02NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesCurrent ▄▇▆▆▄▅▄▄▄▃▃▅▄▂▂▂▂█▂█▇▇▂█▇▇▂▇▇█▂▆▆▇▁▆▆▆▁▅▄29.26448.28540.57139.73132.95335.02432.64432.83729.43925.20723.13837.08329.62820.03219.80720.84118.28351.10318.28650.345.01446.719.45750.49549.01746.94820.86247.93748.92252.81220.0344.28641.4844.72115.25941.20139.35941.83413.63537.81631.945NA31.777NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
 us-gaap:LongTermDebt us-gaap:CreditFacility us-gaap:RevolvingCreditFacilityNANANA45.080.0150.06945.929NANANA20.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:CreditFacility,us-gaap:DebtInstrument us-gaap:RevolvingCreditFacility,saia:ExistingCreditAgreementNANANA45.080.0150.145.9NANANA20.0NANANA43.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LongTermDebtAndCapitalLeaseObligations ▁▁▁▃▅█▄▅▆▅▄▄▅▄▄▄▅▅▂▃▄▄▂▂▃39.37844.96250.388100.186141.112216.202117.025146.02160.92130.964104.777103.715138.161127.782118.833110.161131.699137.73857.04277.543122.747102.7856.5469.16397.419NA73.897NANANANANANANANANANANANANANANANANANA
us-gaap:DeferredIncomeTaxLiabilitiesNet █▅▂▆▁123.0121.144119.818122.162119.125NA111.555NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesNoncurrent ▄▄▄▆▆█▅▆▅▄▂▂▃▂▂▃▃▃▁▂▃▂▁▁299.342305.709311.732371.523415.016484.825359.221385.82357.428317.741228.569209.05240.407229.476217.895237.467257.629257.374172.348186.321229.772206.432159.924182.666NANA189.06NANANANANANANANANANANANANANANANANANA
us-gaap:OperatingLeaseLiabilityNoncurrent ▂▄▄▆██▁88.20893.36695.32199.474104.958105.28286.239NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANA25.263NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANA21.143NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NANA17.529NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA13.329NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA37.521NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:StockholdersEquity █▇▇▇▆▆▆▆▅▅▅▅▅▄▄▄▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁1063.158997.618961.288918.466875.09843.387815.226792.371757.502717.65695.864669.291639.974607.394582.547531.753515.0495.467483.078468.89454.196438.768427.889413.828400.992379.253366.906349.103330.238314.734304.792294.842281.246264.003254.519248.279238.196225.576219.301216.539211.376NA206.358NANA
us-gaap:CommonStockValue ███████████████▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▁▁▁▁▁▁▁▁0.0260.0260.0260.0260.0260.0260.0260.0260.0260.0260.0260.0260.0260.0260.0260.0250.0250.0250.0250.0250.0250.0250.0250.0250.0250.0250.0250.0250.0250.0250.0240.0240.0240.0160.0160.0160.0160.0160.0160.0160.016NA0.016NANA
us-gaap:AdditionalPaidInCapitalCommonStock ████▇▇▇▇▇▆▆▆▆▆▅▅▅▅▅▄▄▄▄▄▃▃▃▃▂▂▂▂▂▁▁▁▁▁▁▁▁270.608267.43267.666267.075265.264262.008260.871259.388257.583254.575254.738253.366252.536250.233246.454243.382241.057238.995237.846234.045233.2231.114230.593228.015226.891223.846223.713219.512216.926215.002213.648211.762211.054207.258206.977206.159205.368204.555203.793203.547203.153NA202.751NANA
us-gaap:RetainedEarningsAccumulatedDeficit █▇▇▇▆▆▆▆▅▅▅▅▄▄▄▄▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁796.305733.831696.54656.304614.765586.311558.2536.781503.813466.74444.481419.101390.906360.625339.553291.794277.387259.784248.397238.049224.223210.948200.373188.986177.209157.962145.357131.788115.51101.94293.36685.30272.39458.89449.73944.33335.07723.22617.69115.21810.389NA6.318NANA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue █▁1.811.711NA1.671.641.317NA1.2951.3420.998NA1.1971.0611.058NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:NetCashProvidedByUsedInOperatingActivities ▆▄▅▇█▃▅█▇▁▅▆▆▂▁▃79.16960.97170.18490.72896.96651.26765.57893.72483.17430.469.32674.99276.61635.50230.10948.42NANANANANANANANANANANANA42.7564.11933.75535.57524.9647.01823.2527.09926.27724.04923.55823.94211.71-0.9993.85914.478NA
us-gaap:NetCashProvidedByUsedInInvestingActivities ▄██▅▇▂▇▃▁▅▄▇▄▆▇█-74.578-25.388-21.307-54.788-40.046-102.676-36.506-78.471-109.588-56.466-68.145-36.284-71.374-46.781-28.938-26.179NANANANANANANANANANANANA-58.433-8.223-24.279-26.922-64.804-6.015-3.536-17.591-30.067-39.237-16.145-31.136-14.573-6.045-2.081-0.951NA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▄▄▂▂▁█▃▃▅▅▄▂▄▄▄▃-4.991-7.631-49.038-39.751-74.54998.07-28.839-15.74126.88623.9030.484-39.368-4.5497.0553.468-22.559NANANANANANANANANANANANA16.6234.787-13.377-7.46542.275-0.887-20.197-9.534.55613.931-9.6180.0NANA0.0590.052NA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:DeferredIncomeTaxExpenseBenefit ▄▄▁▅▃█1.8561.327-2.3443.0370.5017.069NANANA5.315NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:DepreciationDepletionAndAmortization █████▇▇▇▆▆▆▆▅▅▅▅▅▄▄▄▄▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁34.65935.37234.17734.22433.66432.5931.87731.33329.14326.78227.18826.69425.24123.0322.49522.33822.18220.08719.3319.92719.7417.24316.49516.76516.56115.19914.75815.33615.08713.84113.79913.74512.38611.63412.30412.31511.95111.41510.1799.7238.8038.5738.6868.9469.222
us-gaap:NetCashProvidedByUsedInOperatingActivities ▆▄▅▇█▃▅█▇▁▅▆▆▂▁▃79.16960.97170.18490.72896.96651.26765.57893.72483.17430.469.32674.99276.61635.50230.10948.42NANANANANANANANANANANANA42.7564.11933.75535.57524.9647.01823.2527.09926.27724.04923.55823.94211.71-0.9993.85914.478NA
us-gaap:NetIncomeLoss █▅▅▆▄▄▃▅▅▃▄▄▄▃▆▃▃▂▂▂▂▂▂▂▃▂▂▃▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁62.47437.29140.23641.53928.45428.11121.41932.96837.07322.25925.3828.19530.28121.12547.75914.40717.60311.38710.34813.82613.27510.57511.38711.77719.24712.60513.56916.27813.5688.5768.06412.90813.59.1555.4069.25611.8515.5352.4734.8293.3580.7130.7052.4951.98
us-gaap:ProfitLoss █▄▅▅▃▃▂▄▄▂▃▃▃▂▆▁62.47437.29140.23641.53928.45428.11121.41932.96837.07322.25925.3828.19530.28121.12547.7914.373NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:NetCashProvidedByUsedInInvestingActivities ▄██▅▇▂▇▃▁▅▄▇▄▆▇█-74.578-25.388-21.307-54.788-40.046-102.676-36.506-78.471-109.588-56.466-68.145-36.284-71.374-46.781-28.938-26.179NANANANANANANANANANANANA-58.433-8.223-24.279-26.922-64.804-6.015-3.536-17.591-30.067-39.237-16.145-31.136-14.573-6.045-2.081-0.951NA
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▆▃▃▅▄█▄▆█▅▅▃▆▄▃▃▃▇▂▁▄▄▂▂▃▃▂▂▅▁▃▃▅▁▁▂▃▄▂▃▂▁▁▁74.63425.56825.83556.44241.274107.59142.45278.769109.69356.74168.45536.64471.69246.88131.0228.34638.94288.38810.4946.73148.14553.99517.66412.36926.40230.06417.97712.69658.6988.37925.55928.70765.3676.7254.23210.44630.84740.59518.55331.41614.7876.1062.241.015NA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:NetCashProvidedByUsedInFinancingActivities ▄▄▂▂▁█▃▃▅▅▄▂▄▄▄▃-4.991-7.631-49.038-39.751-74.54998.07-28.839-15.74126.88623.9030.484-39.368-4.5497.0553.468-22.559NANANANANANANANANANANANA16.6234.787-13.377-7.46542.275-0.887-20.197-9.534.55613.931-9.6180.0NANA0.0590.052NA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value26000.026000.026000.026000.026000.026000.026000.026000.026000.026000.026000.026000.026000.026000.026000.025000.025000.025000.025000.025000.025000.025000.025000.025000.025000.025000.025000.025000.025000.025000.024000.024000.024000.016000.016000.016000.016000.016000.016000.016000.016000.016000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value26262626262626262626262626252525252525252525252525161616160.016160.016188160.0160940.016124
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value26262626262525252525252525252525242424242424242424151515150.01580.015791150.0157190.015703
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


Antidilutive
Period End2021-06-302021-03-312020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value19250.020164.048840.069211.0103920.0113250.0127640.045150.045150.063062.063104.0204630.0226160.0402770.0516310.0554670.0125540.0125540.074480.087.0114980.0259880.0148650.0102100.00108030.0108030.0394760.0406050.0199690.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value2.371.421.541.591.091.080.821.271.430.860.981.091.180.821.870.560.690.450.410.550.530.420.460.470.770.510.550.660.550.350.330.530.560.570.340.580.750.350.160.310.210.050.040.160.13
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value2.341.41.511.561.071.060.811.251.40.850.971.071.150.81.820.550.680.440.40.540.520.420.460.460.750.490.530.640.530.340.320.510.540.550.330.560.720.340.150.30.210.040.040.160.12
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Costs And Expenses

us-gaap:CostsAndExpenses

us-gaap:CostsAndExpenses


Costs
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value488435425426382407415423413381373386387365337332334292271289305307284264271269259254261266257246258257238222228225
Percentage of CostsAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax85.589.989.488.591.591.393.890.389.093.091.890.990.393.093.693.191.990.392.893.491.893.194.994.792.592.094.796.294.192.695.997.696.496.998.399.297.297.5

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value824750543436264349273137402621232816162120161618302019262113132021138.44114199.1793.9237.3045.321.183-0.4834.1733.126
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.49.910.511.38.38.25.99.310.66.77.88.89.46.76.06.67.75.15.46.86.65.75.85.99.36.96.37.86.54.74.76.97.44.83.25.26.63.41.62.72.00.5-0.21.81.4

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value20109.944126.3848.7164.73710125.3236.3189.2319.9725.331-26.0019.013105.1235.8857.7397.2186.0535.3246.989107.666.0469.7918.0315.3695.0817.3528.173.9153.0355.2637.1493.6441.452.4751.9620.47-1.1881.6781.146
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.52.22.12.71.52.01.12.22.71.31.62.22.31.4-7.22.52.91.62.02.42.32.11.92.23.42.62.02.92.41.81.82.52.81.41.11.92.51.40.60.90.70.2-0.50.70.5

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value0.8340.8521.0071.1741.5941.4021.5341.8681.9031.3831.3281.411.4541.2261.2891.3131.5380.9110.9841.1831.2640.9630.9811.0331.0741.0191.0071.0641.1771.3161.5841.761.6181.5281.7071.9412.1951.9642.3212.1942.9552.9982.3752.4692.685
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.20.20.20.40.30.30.40.40.30.30.30.30.30.40.40.40.30.30.40.40.30.30.30.30.30.30.30.40.40.60.60.60.60.60.70.80.70.90.81.11.21.11.11.2

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value62374041282821323722252830214714171110131310111119121316138.5768.06412139.1555.4069.256115.5352.4734.8293.3580.7130.7052.4951.98
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.97.78.48.66.86.34.87.08.05.46.26.67.15.413.34.04.83.53.44.44.33.64.03.75.94.34.44.94.12.92.94.44.63.32.03.34.12.11.01.81.30.30.31.10.9

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value6237412828323722283021
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.97.78.66.86.37.08.05.46.67.15.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.0

Nonoperating Income Expense

us-gaap:NonoperatingIncomeExpense

us-gaap:NonoperatingIncomeExpense


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value-404000.0-721000.0-468000.0-783000.0-843000.0-1949000.0-1274000.0-1848000.0-1763000.0-1049000.0-1638000.0-1271000.0-1312000.0-1123000.0-1140000.0-1182000.0-1628000.0-1009000.0-954000.0-1079000.0-1228000.0-956000.0-905000.0-1079000.0-1060000.0-968000.0-957000.0-1080000.0-1142000.0-1286000.0-1547000.0-1675000.0-1589000.0-1462000.0-1637000.0-1897000.0-2192000.0-1869000.0-2257000.0-2316000.0-2936000.0-2907000.0-2287000.0-2374000.0-2748000.0
Percentage of NonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.1-0.1-0.1-0.2-0.2-0.4-0.3-0.4-0.4-0.3-0.4-0.3-0.3-0.3-0.3-0.3-0.4-0.3-0.3-0.3-0.4-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.4-0.6-0.6-0.5-0.5-0.6-0.7-0.8-0.7-0.9-0.9-1.1-1.2-1.0-1.0-1.2

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value82485055353827455128333841272224291717222117171931212027221514212314101621116.189.628.2564.091.8046.5475.874
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.510.110.611.58.58.76.29.711.07.08.29.19.77.06.46.98.25.45.77.27.06.16.16.39.77.26.68.26.95.15.37.58.05.33.85.97.44.12.43.63.11.70.82.82.5

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value430000.0131000.0539000.0391000.0751000.0-547000.0260000.020000.0140000.0334000.0-310000.0139000.0142000.0103000.0149000.0131000.0-90000.0-98000.030000.0104000.036000.07000.076000.0-46000.014000.051000.050000.0-16000.035000.030000.037000.085000.029000.066000.070000.044000.03000.095000.064000.0-122000.019000.091000.088000.095000.0-63000.0
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.00.10.10.2-0.10.10.00.00.1-0.10.00.00.00.00.0-0.0-0.00.00.00.00.00.0-0.00.00.00.0-0.00.00.00.00.00.00.00.00.00.00.00.0-0.00.00.00.00.0-0.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value62374041282821323722252830214714
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.97.78.48.66.86.34.87.08.05.46.26.67.15.413.34.0

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value571484476481418446443468464410406425428392360357364323300316311289287317323293309332330299279293292273264278287268253268265243224234231
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value16471610154815651538157714151422135212461133108810851015967952940927800808828795729750756739686679682643616605600535519542531514474474460452
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value16471610154815651538157714151422135212461133108810851015967952940927800808828795729750756739686679682643616605600535519542531514474474460452
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value1063997961918875843815792757717695669639607582531515495483468454438427413400379366349330314304294281264254248238225219216211206202183
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets64.561.962.158.756.953.557.655.756.057.661.461.558.959.860.255.854.853.460.458.054.855.158.755.153.051.353.551.448.448.949.448.746.849.349.045.844.843.846.245.745.945.60.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value270267267267265262260259257254254253252250246237230223213206203202201174
Percentage of StockholdersEquity25.526.827.829.130.331.132.032.734.035.536.637.939.541.242.349.253.961.070.181.392.998.399.294.8
Percentage of Assets16.416.617.317.117.216.618.418.219.120.422.523.323.324.625.529.731.632.634.639.842.944.80.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value0.0260.0260.0260.0260.0260.0260.0260.0260.0260.0260.0260.0260.0260.0260.0260.0250.0250.0250.0240.0160.0160.0160.0160.014
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DeferredCompensationShareBasedPayments


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value-3.781-3.669-2.944-4.939-4.965-4.958-3.871-3.824-3.92-3.691-3.381-3.202-3.494-3.49-3.486-3.19-3.102-2.189-2.246
Percentage of StockholdersEquity-0.4-0.4-0.3-0.5-0.6-0.6-0.5-0.5-0.5-0.5-0.5-0.5-0.5-0.6-0.6-0.7-0.7-0.6-0.7
Percentage of Assets-0.2-0.2-0.2-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.4-0.4-0.4-0.3-0.4
Percentage of Assets us-gaap:DeferredCompensationShareBasedPayments0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value7967336966566145865585365034664444193903603392482001459349176.3184.36112
Percentage of StockholdersEquity74.973.672.571.570.369.568.567.766.565.063.962.661.159.458.351.446.839.630.619.58.13.12.26.7
Percentage of Assets48.345.645.041.940.037.239.437.737.337.439.238.536.035.535.131.027.521.215.19.63.71.40.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value353348271280269305232249261241213224232225203200197184166166172175158185193196189193194186170169167159144156151150142147155153
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets21.521.617.517.917.519.416.417.619.319.318.820.621.422.321.021.121.019.920.820.620.822.021.824.725.626.527.628.528.528.927.627.927.929.827.728.928.529.130.131.233.833.9

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-312008-12-31
Value5253252529460.2480.0150.5030.0312.1940.5291.1890.4964.720.0810.3990.7111.5390.7890.360.2380.1244.543.6630.1964.3677.2441.7880.8420.1594.062.8720.4370.3210.8040.8260.061.3173.52210222927138.74627
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.23.31.61.61.93.00.00.00.00.00.20.00.10.00.50.00.00.10.20.10.00.00.00.60.50.00.61.10.30.10.00.70.50.10.10.10.20.00.30.72.30.06.40.00.00.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312016-12-31
Value5253252529460.2480.0150.5030.0312.1940.5294.721.539
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.23.31.61.61.93.00.00.00.00.00.20.00.50.2

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value26124221622620521019621822720218119720019117017216714813514314213712413914614012814614814111712713012610612412312010711511494
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets15.915.114.014.513.313.413.915.316.816.216.018.218.518.917.618.117.816.116.917.717.217.317.018.519.319.018.721.621.822.019.121.121.823.720.623.023.323.422.624.324.920.9

Other Assets Current

us-gaap:OtherAssetsCurrent

us-gaap:OtherAssetsCurrent


Other
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value9888000.09182000.07121000.07047000.05499000.04701000.05420000.05083000.04341000.05127000.04887000.0
Percentage of OtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.60.60.70.70.60.80.80.81.11.1

Prepaid Expense And Other Assets Current

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PrepaidExpenseAndOtherAssetsCurrent


Prepaid
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value385229273441273133382926303417283034172229371442445513394343133733321131272911293029
Percentage of PrepaidExpenseAndOtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.33.21.91.82.22.62.02.22.53.12.62.42.83.41.83.03.23.82.22.73.64.71.95.65.87.52.05.86.46.82.16.25.66.12.25.75.15.72.46.26.56.6

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value1983191819011903186218341739173516651553152114451419133412891260123312161101110411071056995975957924891869863820797787787722718722718700669659632610
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets120.4119.1122.8121.6121.1116.3122.9122.0123.2124.6134.2132.8130.7131.4133.3132.3131.2131.2137.7136.6133.5132.8136.5129.9126.6125.0129.8128.0126.4127.4129.3130.0131.2135.0138.3133.2135.2136.0140.9139.1137.5135.0

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

saia:OtherPropertyPlantAndEquipment


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value96877464877568605552
Percentage of PropertyPlantAndEquipmentGross5.15.04.95.07.97.67.77.57.87.8
Percentage of Assets6.26.26.56.610.910.410.09.710.711.1
Percentage of Assets saia:OtherPropertyPlantAndEquipment0.00.00.00.00.00.00.00.00.00.0

saia:OtherRevenueEquipment


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value96928377383637343328
Percentage of PropertyPlantAndEquipmentGross5.15.35.56.03.53.74.24.34.64.2
Percentage of Assets6.36.67.48.04.85.15.45.66.45.9
Percentage of Assets saia:OtherRevenueEquipment0.00.00.00.00.00.00.00.00.00.0

saia:Structures


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value440389321268196181140115112111
Percentage of PropertyPlantAndEquipmentGross23.122.421.120.817.918.315.714.515.616.6
Percentage of Assets28.427.528.327.824.624.920.418.821.623.4
Percentage of Assets saia:Structures0.00.00.00.00.00.00.00.00.00.0

saia:TechnologyEquipmentAndSoftware


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value14112711093807263585244
Percentage of PropertyPlantAndEquipmentGross7.57.37.37.37.37.37.27.47.36.7
Percentage of Assets9.29.09.89.710.010.09.39.610.19.5
Percentage of Assets saia:TechnologyEquipmentAndSoftware0.00.00.00.00.00.00.00.00.00.0

saia:Tractors


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value583524476398350314290273243221
Percentage of PropertyPlantAndEquipmentGross30.730.231.330.931.831.632.634.233.933.1
Percentage of Assets37.737.142.141.243.843.142.444.346.846.7
Percentage of Assets saia:Tractors0.00.00.00.00.00.00.00.00.00.0

saia:Trailers


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value426411354305279256237202169159
Percentage of PropertyPlantAndEquipmentGross22.423.623.323.725.425.826.625.323.623.8
Percentage of Assets27.529.131.331.634.935.234.632.832.733.6
Percentage of Assets saia:Trailers0.00.00.00.00.00.00.00.00.00.0

us-gaap:Land


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value11610610081695753525151
Percentage of PropertyPlantAndEquipmentGross6.16.16.66.36.35.86.06.67.27.7
Percentage of Assets7.57.58.88.48.67.97.88.69.910.9
Percentage of Assets us-gaap:Land0.00.00.00.00.00.00.00.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value826796765762743712686693674648628609594573554538520504497492481467456443429417407397389377365365369361356353346342344340335319
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets50.249.549.448.748.345.248.548.849.952.055.456.054.856.557.356.555.454.462.260.958.058.762.659.056.856.459.458.557.058.659.260.461.567.568.765.265.266.672.671.972.870.7

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value11561121113611411118112110521041991905893835824760735722713712604611625589539532527507483472474443432421418360361368372357324318297290
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets70.269.673.472.972.771.174.473.273.372.678.876.875.974.976.075.975.876.875.575.775.574.173.970.969.868.670.569.569.568.870.169.769.767.569.668.070.069.468.367.364.764.3

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value1212121212252626122729305.2318.3288.4818.6355.2318.9439.0989.255.2315.231
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.80.91.11.31.53.23.23.31.63.63.94.20.81.21.21.30.81.51.51.71.01.0

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:FiniteLivedIntangibleAssetsNet


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value8.2169.379101113142.9433.5584.1739.5581.3051.3781.451.5481.6451.84
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.70.91.21.72.10.40.60.81.80.20.30.30.30.40.4

Intangible Assets Net Including Goodwill

us-gaap:IntangibleAssetsNetIncludingGoodwill

us-gaap:IntangibleAssetsNetIncludingGoodwill


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value19202020202121212222222323232424242525
Percentage of IntangibleAssetsNetIncludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.21.21.31.31.41.31.51.51.61.82.02.12.12.32.52.62.62.73.2

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312019-01-01
Value105111113117122122103103717277
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.46.97.37.58.07.87.37.35.35.80.0

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value108.7357.0156.3466.5515.625.3416.0145.5635.4244.6484.7055.2445.0044.2594.9614.7675.1074.3744.4774.6214.3984.0395.3255.2755.3234.9955.5915.5435.5645.5335.75.7475.2844.4177.1636.6736.3836.1655.635.6165.883
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.70.50.50.40.40.40.40.40.40.40.40.40.50.50.40.50.50.60.50.60.60.60.60.70.70.70.70.80.80.90.90.91.01.00.81.31.31.21.31.21.21.3

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value10012189978191838477717862716557635570454849595459495742576266504859534352495439384137
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.17.65.86.25.35.85.96.05.75.87.05.76.56.56.06.75.97.75.66.06.07.57.57.96.67.86.28.59.210.38.28.19.910.08.49.79.210.58.48.18.98.3

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value284307275275248249241244237211209209205178167183167174144153144150141154149147130153153155140143147147141149141143124120115105
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets17.319.117.817.616.115.817.017.217.517.018.519.318.917.617.319.317.818.818.119.017.518.919.420.619.719.919.022.622.524.222.823.624.627.527.227.626.727.926.225.525.123.4

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value19202019181819
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.21.31.31.31.21.21.3

Other Liabilities Current

us-gaap:OtherLiabilitiesCurrent

us-gaap:OtherLiabilitiesCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value294840393235323229252337292019201851185045461950494620474852204441441541394113373131
Percentage of OtherLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.83.02.62.52.12.22.32.32.22.02.03.42.72.02.02.21.95.52.36.25.45.92.76.76.56.33.07.17.28.23.27.36.98.42.97.67.48.12.98.06.97.0

Long Term Debt

us-gaap:LongTermDebt us-gaap:CreditFacility

us-gaap:LongTermDebt

us-gaap:RevolvingCreditFacility


Long
Period End2020-09-302020-06-302020-03-312019-12-312018-12-31
Value45801504520
Percentage of LongTermDebt100.0100.0100.0100.0100.0
Percentage of Assets2.95.29.53.21.8
Percentage of Assets us-gaap:RevolvingCreditFacility0.00.00.00.00.0

us-gaap:LongTermDebt us-gaap:CreditFacility, us-gaap:DebtInstrument

us-gaap:RevolvingCreditFacility, saia:ExistingCreditAgreement


Long
Period End2020-09-302020-06-302020-03-312019-12-312018-12-312017-12-31
Value4580150452043
Percentage of LongTermDebt100.0100.0100.099.9100.00.0
Percentage of Assets2.95.29.53.21.84.4
Percentage of Assets us-gaap:RevolvingCreditFacility saia:ExistingCreditAgreement0.00.00.00.00.00.0

Long Term Debt And Capital Lease Obligations

us-gaap:LongTermDebtAndCapitalLeaseObligations

us-gaap:LongTermDebtAndCapitalLeaseObligations


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value394450100141216117146160130104103138127118110131137577712210256699773
Percentage of LongTermDebtAndCapitalLeaseObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.42.83.36.49.213.78.310.311.910.59.29.512.712.612.311.614.014.97.19.614.812.97.89.212.910.8

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxLiabilitiesNet


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value123121119122119111
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0100.0100.0
Percentage of Assets7.57.57.77.87.77.9

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value299305311371415484359385357317228209240229217237257257172186229206159182189
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets18.219.020.123.727.030.725.427.126.425.520.219.222.122.622.524.927.427.821.523.027.725.921.924.327.5

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value8893959910410586
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.45.86.26.46.86.76.1

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-31
Value25
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0
Percentage of Assets1.6

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-31
Value21
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0
Percentage of Assets1.4

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-31
Value17
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0
Percentage of Assets1.1

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value13
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.9

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-31
Value37
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets2.4

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312019-01-01
Value115105104727577
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0
Percentage of Assets7.57.47.45.46.00.0

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-31
Value140
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0
Percentage of Assets9.1

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2020-12-31
Value25
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0
Percentage of Assets1.6

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value1063997961918875843815792757717695669639607582531515495483468454438427413400379366349330314304294281264254248238225219216211206202183
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets64.561.962.158.756.953.557.655.756.057.661.461.558.959.860.255.854.853.460.458.054.855.158.755.153.051.353.551.448.448.949.448.746.849.349.045.844.843.846.245.745.945.60.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value270267267267265262260259257254254253252250246237230223213206203202201174
Percentage of StockholdersEquity25.526.827.829.130.331.132.032.734.035.536.637.939.541.242.349.253.961.070.181.392.998.399.294.8
Percentage of Assets16.416.617.317.117.216.618.418.219.120.422.523.323.324.625.529.731.632.634.639.842.944.80.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value0.0260.0260.0260.0260.0260.0260.0260.0260.0260.0260.0260.0260.0260.0260.0260.0250.0250.0250.0240.0160.0160.0160.0160.014
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DeferredCompensationShareBasedPayments


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value-3.781-3.669-2.944-4.939-4.965-4.958-3.871-3.824-3.92-3.691-3.381-3.202-3.494-3.49-3.486-3.19-3.102-2.189-2.246
Percentage of StockholdersEquity-0.4-0.4-0.3-0.5-0.6-0.6-0.5-0.5-0.5-0.5-0.5-0.5-0.5-0.6-0.6-0.7-0.7-0.6-0.7
Percentage of Assets-0.2-0.2-0.2-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.4-0.4-0.4-0.3-0.4
Percentage of Assets us-gaap:DeferredCompensationShareBasedPayments0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value7967336966566145865585365034664444193903603392482001459349176.3184.36112
Percentage of StockholdersEquity74.973.672.571.570.369.568.567.766.565.063.962.661.159.458.351.446.839.630.619.58.13.12.26.7
Percentage of Assets48.345.645.041.940.037.239.437.737.337.439.238.536.035.535.131.027.521.215.19.63.71.40.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value26000.026000.026000.026000.026000.026000.026000.026000.026000.026000.026000.026000.026000.026000.026000.025000.025000.025000.025000.025000.025000.025000.025000.025000.025000.025000.025000.025000.025000.025000.024000.024000.024000.016000.016000.016000.016000.016000.016000.016000.016000.016000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value270267267267265262260259257254254253252250246243241238237234233231230228226223223219216215213211211207206206205204203203203202
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets16.416.617.317.117.216.618.418.219.120.422.523.323.324.625.525.525.625.829.728.928.129.031.630.430.030.332.632.331.833.434.635.035.138.739.838.038.639.742.942.944.144.8

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value79673369665661458655853650346644441939036033929127725924823822421020018817715714513111510193857258494435231715106.318
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets48.345.645.041.940.037.239.437.737.337.439.238.536.035.535.130.629.528.031.029.427.126.527.525.223.421.421.219.416.915.815.114.112.111.09.68.26.64.53.73.22.31.4

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

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value1810000.01711000.01670000.01640000.01317000.01295000.01342000.0998000.01197000.01061000.01058000.0
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
Value1810000.01711000.01670000.01640000.01317000.01295000.01342000.0998000.01197000.01061000.01058000.0
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 End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value79607090965165938330697476353048424.1193335247.01823272624232311-0.9993.85914
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.912.614.718.823.211.514.820.017.97.417.017.617.99.08.413.612.91.412.112.18.52.68.89.79.19.09.38.94.4-0.41.76.2

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-74578000.0-25388000.0-21307000.0-54788000.0-40046000.0-102680000.0-36506000.0-78471000.0-109590000.0-56466000.0-68145000.0-36284000.0-71374000.0-46781000.0-28938000.0-26179000.0-58433000.0-8223000.0-24279000.0-26922000.0-64804000.0-6015000.0-3536000.0-17591000.0-30067000.0-39237000.0-16145000.0-31136000.0-14573000.0-6045000.0-2081000.0-951000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-13.1-5.2-4.5-11.4-9.6-23.0-8.2-16.7-23.6-13.8-16.8-8.5-16.6-11.9-8.0-7.3-17.7-2.7-8.7-9.2-22.2-2.2-1.3-6.3-10.5-14.6-6.4-11.6-5.5-2.5-0.9-0.4

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-312010-09-30
Value-4.991-7.631-49.038-39.751-74.54998-28.839-15.74126230.484-39.368-4.5497.0553.468-22.559164.787-13.377-7.46542-0.887-20.197-9.534.55613-9.6180.00.0590.052
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.9-1.6-10.3-8.3-17.822.0-6.5-3.45.85.80.1-9.3-1.11.81.0-6.35.01.6-4.8-2.514.5-0.3-7.6-3.41.65.2-3.80.00.00.0

Deferred Income Tax Expense Benefit

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DeferredIncomeTaxExpenseBenefit


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-03-31
Value1.8561.327-2.3443.0370.5017.0695.315
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0

Depreciation Depletion And Amortization

us-gaap:DepreciationDepletionAndAmortization

us-gaap:DepreciationDepletionAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value3435343433323131292627262523222222201919191716161615141515131313121112121111109.7238.8038.5738.6868.9469.222
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value79607090965165938330697476353048424.1193335247.01823272624232311-0.9993.85914
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.912.614.718.823.211.514.820.017.97.417.017.617.99.08.413.612.91.412.112.18.52.68.89.79.19.09.38.94.4-0.41.76.2

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value62374041282821323722252830214714171110131310111119121316138.5768.06412139.1555.4069.256115.5352.4734.8293.3580.7130.7052.4951.98
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.97.78.48.66.86.34.87.08.05.46.26.67.15.413.34.04.83.53.44.44.33.64.03.75.94.34.44.94.12.92.94.44.63.32.03.34.12.11.01.81.30.30.31.10.9

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value6237412828323722283021
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.97.78.66.86.37.08.05.46.67.15.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value62374041282821323722252830214714
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.97.78.48.66.86.34.87.08.05.46.26.67.15.413.34.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-74578000.0-25388000.0-21307000.0-54788000.0-40046000.0-102680000.0-36506000.0-78471000.0-109590000.0-56466000.0-68145000.0-36284000.0-71374000.0-46781000.0-28938000.0-26179000.0-58433000.0-8223000.0-24279000.0-26922000.0-64804000.0-6015000.0-3536000.0-17591000.0-30067000.0-39237000.0-16145000.0-31136000.0-14573000.0-6045000.0-2081000.0-951000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-13.1-5.2-4.5-11.4-9.6-23.0-8.2-16.7-23.6-13.8-16.8-8.5-16.6-11.9-8.0-7.3-17.7-2.7-8.7-9.2-22.2-2.2-1.3-6.3-10.5-14.6-6.4-11.6-5.5-2.5-0.9-0.4

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value74252556411074278109566836714631283888106.7314853171226301712588.3792528656.7254.2321030401831146.1062.241.015
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-312010-09-30
Value-4.991-7.631-49.038-39.751-74.54998-28.839-15.74126230.484-39.368-4.5497.0553.468-22.559164.787-13.377-7.46542-0.887-20.197-9.534.55613-9.6180.00.0590.052
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.9-1.6-10.3-8.3-17.822.0-6.5-3.45.85.80.1-9.3-1.11.81.0-6.35.01.6-4.8-2.514.5-0.3-7.6-3.41.65.2-3.80.00.00.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value79.251.6238.9334.7532.1531.6322.0314.7616.6416.64
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value1191118659806758493637
Percentage of DeferredTaxLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1052000.0957000.0869000.01093000.01280000.01158000.01165000.01281.01290000.02580000.02860000.0
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

saia:DecreaseInInsurancePremiumExpenses us-gaap:LossContingenciesByNatureOfContingency

saia:DecreaseInInsurancePremiumExpenses

saia:NewBodilyInjuryAndPropertyDamageLiabilityPolicy


Decrease
Period End2020-09-30
Value500000.0
Percentage of DecreaseInInsurancePremiumExpenses100.0

saia:DirectorDeferredValueActivity

saia:DirectorDeferredValueActivity


Director
Period End2021-06-302020-06-302019-06-302018-06-30
Value1256000.01230000.01117000.01109000.0
Percentage of DirectorDeferredValueActivity100.0100.0100.0100.0

saia:DirectorDeferredValueActivity us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Director
Period End2021-06-302020-06-302019-06-302018-06-30
Value1256000.01230000.01117000.01109000.0
Percentage of DirectorDeferredValueActivity100.0100.0100.0100.0

saia:EffectOfOtherCommonStockEquivalents

saia:EffectOfOtherCommonStockEquivalents


Effect
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value265000.0265000.0-11000.0356000.0358000.0326000.00357000.0341000.0324000.0-39000.0395000.0421000.0438000.0-6000.0434000.0399000.0628000.034000.0568000.0510000.0399000.0-52000.0505000.0497000.0555000.0-12000.0736000.0731000.0735000.04000.0763000.0761000.0440000.0-1000.0540000.0510000.0453000.0-8000.0325000.0342000.0
Percentage of EffectOfOtherCommonStockEquivalents100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

saia:FuelOperatingExpensesAndSupplies

saia:FuelOperatingExpensesAndSupplies


Fuel
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value90847674658286848583798184787166666357595954596569677380817973757879747677-79.397-71.897-75.51-76.186-69.941-60.502-58.987-58.38
Percentage of FuelOperatingExpensesAndSupplies100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

saia:OneTimeBonusPaidPerEmployee us-gaap:UnusualRiskOrUncertaintyByNature

saia:OneTimeBonusPaidPerEmployee

saia:CovidNineteen


One
Period End2020-07-31
Value250.0
Percentage of OneTimeBonusPaidPerEmployee100.0

saia:OneTimeBonusPayment us-gaap:UnusualRiskOrUncertaintyByNature

saia:OneTimeBonusPayment

saia:CovidNineteen


One
Period End2020-07-31
Value2600000.0
Percentage of OneTimeBonusPayment100.0

saia:PercentageOfRevenue us-gaap:Range

saia:PercentageOfRevenue

srt:Minimum


Percentage
Period End2021-06-302021-03-312020-12-312018-09-302017-09-30
Value097.000.9760.972
Percentage of PercentageOfRevenue0.0100.00.0100.0100.0

saia:PurchaseOfSharesByDeferredCompensationTrust us-gaap:StatementEquityComponents

saia:PurchaseOfSharesByDeferredCompensationTrust

us-gaap:AdditionalPaidInCapital


Purchase
Period End2021-06-302021-03-312020-06-302020-03-312019-06-302019-03-312018-09-302018-06-302018-03-31
Value-112000.0-742000.0-128000.0-1146000.0-229000.0-309000.0291000.0-4000.0-5000.0
Percentage of PurchaseOfSharesByDeferredCompensationTrust100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredCompensationShareBasedPayments


Purchase
Period End2021-06-302021-03-312020-06-302020-03-312019-06-302019-03-312018-09-302018-06-302018-03-31
Value112000.0742000.0128000.01146000.0229000.0458000.058000.0156000.0295000.0
Percentage of PurchaseOfSharesByDeferredCompensationTrust-100.0-100.0-100.0-100.0-100.0-148.219.9-3900.0-5900.0

saia:PurchasedTransportation

saia:PurchasedTransportation


Purchased
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value624544402630313534282831342928232214131514121319201722272721171819161518211918232421192122
Percentage of PurchasedTransportation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

saia:SaleOfSharesByDeferredCompensationTrust us-gaap:StatementEquityComponents

saia:SaleOfSharesByDeferredCompensationTrust

us-gaap:AdditionalPaidInCapital


Sale
Period End2021-03-312020-09-302020-06-302020-03-312019-09-30
Value-17000.0-26000.0-121000.0-59000.0-96000.0
Percentage of SaleOfSharesByDeferredCompensationTrust100.0100.0100.0100.0100.0

us-gaap:DeferredCompensationShareBasedPayments


Sale
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-03-312018-09-302018-06-302018-03-31
Value17000.026000.0121000.059000.096000.0148000.0350000.0152000.0291000.0
Percentage of SaleOfSharesByDeferredCompensationTrust-100.0-100.0-100.0-100.0-100.00.00.00.00.0

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation


Adjustments
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value6350000.0120000.075000.03404000.0167000.036000.03268000.076000.018000.01302000.0
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value6350000.0120000.075000.03404000.0167000.036000.03268000.076000.018000.01302000.0
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions


Adjustments
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-06-302018-03-31
Value3678000.0287000.0454000.02137000.0773000.0356000.01798000.0147000.04018000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-06-302018-03-31
Value3678000.0287000.0454000.02137000.0773000.0356000.01798000.0147000.04018000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value-0.427-0.161-3.811-17.629460.233-0.4880.472-2.1631.665
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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
Value1414141413141413131312121212111010
Percentage of DirectTaxesAndLicensesCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeasePrincipalPayments

us-gaap:FinanceLeasePrincipalPayments


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value4.9914.9594.9454.9184.8594.8034.7634.7284.4474.5894.5164.2933.8453.493
Percentage of FinanceLeasePrincipalPayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnSaleOfPropertyPlantEquipment

us-gaap:GainLossOnSaleOfPropertyPlantEquipment


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value69000.0199000.0970000.0316000.0-148000.01390000.01010000.0-451000.0-30000.0-126000.0-74000.0-326000.042000.0-21000.0-286000.0717000.0-116000.0-132000.0-220000.0-133000.0-173000.0-190000.0-63000.0-126000.0-52000.0-69000.036000.0-32000.05000.07000.0151000.0296000.0102000.0172000.078000.088000.0102000.0219000.093000.0-31000.0102000.01000.048000.023000.0150000.0
Percentage of GainLossOnSaleOfPropertyPlantEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOperatingCapital

us-gaap:IncreaseDecreaseInOperatingCapital


Increase
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value2315-8.26-29.23718-17.389-7.63126-14.672-15.30712-13.102-7.243-6.435120.766-15.535-11.8431316-12.886-7.1643.70414-11.749-11.83120-3.467-8.5442.02215-0.765-5.5330.674-8.348-10.667-12.3750.63611-16.208-2.431
Percentage of IncreaseDecreaseInOperatingCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements


Incremental
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value107000.0121000.012000.0109000.077000.096000.06000.0125000.0107000.0125000.0-8000.0167000.0167000.0172000.018000.0152000.0100000.0118000.05000.052000.043000.048000.0-20000.087000.0128000.0155000.0-1000.0242000.0232000.0244000.0-3000.0286000.0294000.0202000.06000.0135000.0119000.072000.0-4000.035000.055000.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LaborAndRelatedExpense

us-gaap:LaborAndRelatedExpense


Labor
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value268244248252224238239250237220216224220211194194196180171178175170164177170157162166160150144147144136136138140131127133130122119123121
Percentage of LaborAndRelatedExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingInsuranceAndClaimsCostsProduction

us-gaap:OperatingInsuranceAndClaimsCostsProduction


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value17119.109111810127.85139.538.3399.9859.91109.1528.535109.049109.988108.0816.4889.1466.3614.8376.9126.956149.5187.4096.6075.8835.5956.3036.1336.1026.174106.7667.8367.2525.3775.9975.411
Percentage of OperatingInsuranceAndClaimsCostsProduction100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherNoncashIncomeExpense

us-gaap:OtherNoncashIncomeExpense


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-3275000.0-2365000.0-3668000.0-5110000.0-2129000.0-12034000.0-9327000.0-8076000.0-5431000.0-5787000.0-3608000.0-4432000.0-8969000.0-5411000.0-2557000.0-4650000.0-1701000.02540000.0-5565000.02087000.0-2060000.03576000.0-1779000.0-2270000.0-2048000.0602000.0-378000.0-1100000.0-1431000.02005000.05000.0-3149000.01249000.0-1054000.02985000.0-185000.0-742000.02652000.0-606000.0
Percentage of OtherNoncashIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value06350000.01000.0120000.075000.03404000.00167000.036000.03268000.0075000.019000.01302000.01000.038000.001211000.0000650000.0
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation0.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.00.0100.00.00.00.0100.0

us-gaap:ProceedsFromLinesOfCredit

us-gaap:ProceedsFromLinesOfCredit


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value197.71320476419086109758668434850676844804227506552535093665694119535596567310110376
Percentage of ProceedsFromLinesOfCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value0.0560.184.5281.6541.2284.9155.9460.2980.1050.2750.310.360.3180.12.0822.1670.3160.6070.6360.4510.2280.3670.1530.1480.2230.2940.3152.1690.2650.1561.281.7850.5630.710.6960.4710.781.3582.4080.280.2140.0610.1590.064
Percentage of ProceedsFromSaleOfPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ProceedsFromStockOptionsExercised


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-312010-09-30
Value03678000.0908000.0287000.0454000.02137000.00773000.0356000.01798000.000147000.04018000.01949000.01243000.001288000.02925000.00-283000.0187000.0787000.01842000.03464000.01600000.0603000.01956000.01240000.050000.02600000.01058000.0276000.024000.0277000.0336000.00059000.052000.0
Percentage of ProceedsFromStockOptionsExercised0.0100.0100.0100.0100.0100.00.0100.0100.0100.00.00.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0

us-gaap:RepaymentsOfLinesOfCredit

us-gaap:RepaymentsOfLinesOfCredit


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value197.7136582134861101204455637849425888541556694626
Percentage of RepaymentsOfLinesOfCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

saia:ClaimsInsuranceAndOtherNoncurrent

saia:ClaimsInsuranceAndOtherNoncurrent


Claims
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value48464649494444444036363938403937383635343534353536
Percentage of ClaimsInsuranceAndOtherNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

saia:DeferredTaxAssetsClaimsAndInsurance

saia:DeferredTaxAssetsClaimsAndInsurance


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value22181716232022191918
Percentage of DeferredTaxAssetsClaimsAndInsurance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

saia:DeferredTaxLeaseAssets

saia:DeferredTaxLeaseAssets


Deferred
Period End2020-12-312019-12-31
Value2926
Percentage of DeferredTaxLeaseAssets100.0100.0

saia:DeferredTaxLeaseLiabilities

saia:DeferredTaxLeaseLiabilities


Deferred
Period End2020-12-312019-12-31
Value2926
Percentage of DeferredTaxLeaseLiabilities100.0100.0

saia:FinanceLeaseAccumulatedDepreciation us-gaap:PropertyPlantAndEquipmentByType

saia:FinanceLeaseAccumulatedDepreciation

saia:Trailers


Finance
Period End2020-12-312019-12-312018-12-31
Value403021
Percentage of FinanceLeaseAccumulatedDepreciation100.0100.0100.0

saia:FinanceLeaseAccumulatedDepreciationAndAmortization us-gaap:BalanceSheetLocation

saia:FinanceLeaseAccumulatedDepreciationAndAmortization

us-gaap:PropertyPlantAndEquipment


Finance
Period End2020-12-312019-12-31
Value4837
Percentage of FinanceLeaseAccumulatedDepreciationAndAmortization100.0100.0

saia:FinanceLeaseRightOfUseAssetGross us-gaap:PropertyPlantAndEquipmentByType

saia:FinanceLeaseRightOfUseAssetGross

saia:Trailers


Finance
Period End2020-12-312019-12-312018-12-31
Value138138132
Percentage of FinanceLeaseRightOfUseAssetGross100.0100.0100.0

saia:LongTermDebtAndFinanceLeaseLiabiliity

saia:LongTermDebtAndFinanceLeaseLiabiliity


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value394450100141216117146160130104
Percentage of LongTermDebtAndFinanceLeaseLiabiliity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

saia:LongTermDebtAndFinanceLeaseLiabilityCurrent

saia:LongTermDebtAndFinanceLeaseLiabilityCurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2121202019191919181718
Percentage of LongTermDebtAndFinanceLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

saia:LongTermDebtAndFinanceLeaseLiabilityIncludingCurrentMaturities

saia:LongTermDebtAndFinanceLeaseLiabilityIncludingCurrentMaturities


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value616670120160235136165179148122
Percentage of LongTermDebtAndFinanceLeaseLiabilityIncludingCurrentMaturities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

saia:LongTermDebtAndFinanceLeaseLiabilityIncludingInterestOnFinanceLeases

saia:LongTermDebtAndFinanceLeaseLiabilityIncludingInterestOnFinanceLeases


Long
Period End2021-06-302021-03-312020-12-312020-09-30
Value647076126
Percentage of LongTermDebtAndFinanceLeaseLiabilityIncludingInterestOnFinanceLeases100.0100.0100.0100.0

saia:LongTermDebtAndFinanceLeaseLiabilityMaturitiesRepaymentsOfPrincipalAfterYearFive

saia:LongTermDebtAndFinanceLeaseLiabilityMaturitiesRepaymentsOfPrincipalAfterYearFive


Long
Period End2021-06-302021-03-312020-12-312020-09-30
Value927000.0927000.0714000.06265000.0
Percentage of LongTermDebtAndFinanceLeaseLiabilityMaturitiesRepaymentsOfPrincipalAfterYearFive100.0100.0100.0100.0

saia:LongTermDebtAndFinanceLeaseLiabilityMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

saia:LongTermDebtAndFinanceLeaseLiabilityMaturitiesRepaymentsOfPrincipalInNextTwelveMonths


Long
Period End2020-12-31
Value22
Percentage of LongTermDebtAndFinanceLeaseLiabilityMaturitiesRepaymentsOfPrincipalInNextTwelveMonths100.0

saia:LongTermDebtAndFinanceLeaseLiabilityMaturitiesRepaymentsOfPrincipalInYearFive

saia:LongTermDebtAndFinanceLeaseLiabilityMaturitiesRepaymentsOfPrincipalInYearFive


Long
Period End2021-06-302021-03-312020-12-312020-09-30
Value5.4535.4535.51755
Percentage of LongTermDebtAndFinanceLeaseLiabilityMaturitiesRepaymentsOfPrincipalInYearFive100.0100.0100.0100.0

saia:LongTermDebtAndFinanceLeaseLiabilityMaturitiesRepaymentsOfPrincipalInYearFour

saia:LongTermDebtAndFinanceLeaseLiabilityMaturitiesRepaymentsOfPrincipalInYearFour


Long
Period End2021-06-302021-03-312020-12-312020-09-30
Value10101015
Percentage of LongTermDebtAndFinanceLeaseLiabilityMaturitiesRepaymentsOfPrincipalInYearFour100.0100.0100.0100.0

saia:LongTermDebtAndFinanceLeaseLiabilityMaturitiesRepaymentsOfPrincipalInYearThree

saia:LongTermDebtAndFinanceLeaseLiabilityMaturitiesRepaymentsOfPrincipalInYearThree


Long
Period End2021-06-302021-03-312020-12-312020-09-30
Value15151521
Percentage of LongTermDebtAndFinanceLeaseLiabilityMaturitiesRepaymentsOfPrincipalInYearThree100.0100.0100.0100.0

saia:LongTermDebtAndFinanceLeaseLiabilityMaturitiesRepaymentsOfPrincipalInYearTwo

saia:LongTermDebtAndFinanceLeaseLiabilityMaturitiesRepaymentsOfPrincipalInYearTwo


Long
Period End2021-06-302021-03-312020-12-312020-09-30
Value20202122
Percentage of LongTermDebtAndFinanceLeaseLiabilityMaturitiesRepaymentsOfPrincipalInYearTwo100.0100.0100.0100.0

saia:LongTermDebtAndFinanceLeaseLiabilityMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear

saia:LongTermDebtAndFinanceLeaseLiabilityMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear


Long
Period End2021-06-302021-03-312020-09-30
Value11175.557
Percentage of LongTermDebtAndFinanceLeaseLiabilityMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear100.0100.0100.0

us-gaap:AccruedEmployeeBenefitsCurrent

us-gaap:AccruedEmployeeBenefitsCurrent


Accrued
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value191619125.12.96.58.88.40.00.0
Percentage of AccruedEmployeeBenefitsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

us-gaap:AccruedInsuranceCurrent

us-gaap:AccruedInsuranceCurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-312014-12-312013-12-312012-12-31
Value48464943393736354740403941393537363326292729
Percentage of AccruedInsuranceCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivable

us-gaap:AllowanceForDoubtfulAccountsReceivable


Allowance
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value5666000.03742000.04028000.03991000.03222000.03548000.03868000.03737000.03881000.03811.04652.0
Percentage of AllowanceForDoubtfulAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStockIssuedEmployeeTrustDeferred

us-gaap:CommonStockIssuedEmployeeTrustDeferred


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312011-09-302011-06-302010-12-31
Value3.7813.6692.9444.9394.9654.9583.8713.8243.923.6913.3813.2023.4943.493.4863.4483.4693.3373.193.2293.2523.3193.1023.1982.189141135169
Percentage of CommonStockIssuedEmployeeTrustDeferred100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredIncomeTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value18617111886119106100927672
Percentage of DeferredIncomeTaxLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsGross


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value66603127383941424035
Percentage of DeferredTaxAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value5869000.05451000.06139000.05458000.06115000.04847000.07024000.06996000.06310000.02995000.0
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value3059000.03562000.03444000.02607000.04538000.03961000.03440000.03287000.02837000.02390000.0
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value1325000.0926000.0995000.0988000.01225000.01350000.01511000.01467000.01525000.01503000.0
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value4.3515.9314.1051.1943.7218.4367.10811109.957
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value3545000.03076000.02977000.093000.01414000.03482000.0-559000.03548000.03276000.03327000.0
Percentage of DeferredTaxLiabilitiesOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value15314211586117103100
Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value654955545546495347384853463839444033313833302732383328393429353531263033312521242219
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized


Employee
Period End2020-12-31
Value3400000.0
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized100.0

us-gaap:FinanceLeaseLiability

us-gaap:FinanceLeaseLiability


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value61667075808590959898102
Percentage of FinanceLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDue

us-gaap:FinanceLeaseLiabilityPaymentsDue


Finance
Period End2020-12-31
Value76
Percentage of FinanceLeaseLiabilityPaymentsDue100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive


Finance
Period End2020-12-31
Value714000.0
Percentage of FinanceLeaseLiabilityPaymentsDueAfterYearFive100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths


Finance
Period End2020-12-31
Value22
Percentage of FinanceLeaseLiabilityPaymentsDueNextTwelveMonths100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive


Finance
Period End2020-12-31
Value5517000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearFive100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour


Finance
Period End2020-12-31
Value10
Percentage of FinanceLeaseLiabilityPaymentsDueYearFour100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree


Finance
Period End2020-12-31
Value15
Percentage of FinanceLeaseLiabilityPaymentsDueYearThree100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo


Finance
Period End2020-12-31
Value21
Percentage of FinanceLeaseLiabilityPaymentsDueYearTwo100.0

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount


Finance
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302019-06-30
Value3941000.04508000.05149000.05794000.07974000.08779000.09481000.0
Percentage of FinanceLeaseLiabilityUndiscountedExcessAmount100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseRightOfUseAsset us-gaap:BalanceSheetLocation

us-gaap:FinanceLeaseRightOfUseAsset

us-gaap:PropertyPlantAndEquipment


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value94971001021050.10860.1115
Percentage of FinanceLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent


Finance
Period End2020-12-312019-12-31
Value3.483.44
Percentage of FinanceLeaseWeightedAverageDiscountRatePercent100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312012-09-302011-12-31
Value12151413119.9648.3827.7677.1524.2866.7
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value11109.5668.5027.4396.0864.7954.1953.5953.15
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization95.268.466.665.464.061.157.254.050.347.0

us-gaap:Trademarks


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value0.5920.4920.3920.2920.1920.092
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization4.83.22.72.21.70.9

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths


Finite
Period End2020-12-31
Value1163000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive


Finite
Period End2020-12-31
Value853000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFive100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour


Finite
Period End2020-12-31
Value853000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFour100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree


Finite
Period End2020-12-31
Value853000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearThree100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo


Finite
Period End2020-12-31
Value1008000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo100.0

us-gaap:FiniteLivedIntangibleAssetsGross

us-gaap:FiniteLivedIntangibleAssetsGross


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312012-09-302011-12-31
Value2024242424241111118.6138.15
Percentage of FiniteLivedIntangibleAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsGross us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value1919191919197.77.77.74.6
Percentage of FiniteLivedIntangibleAssetsGross92.776.276.276.276.276.268.068.068.056.4

us-gaap:IncomeTaxesReceivable

us-gaap:IncomeTaxesReceivable


Income
Period End2021-06-302020-12-312020-06-302020-03-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1.5980.0961.156.5428.2881.8253.6646.9891518132.2643.3125.449
Percentage of IncomeTaxesReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2020-12-31
Value25
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths100.0

us-gaap:LettersOfCreditOutstandingAmount us-gaap:CreditFacility, us-gaap:DebtInstrument

us-gaap:LettersOfCreditOutstandingAmount

us-gaap:RevolvingCreditFacility, saia:ExistingCreditAgreement


Letters
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-31
Value292827282828262733
Percentage of LettersOfCreditOutstandingAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent

us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value212120201919191918171817161414171619161616131212119.138
Percentage of LongTermDebtAndCapitalLeaseObligationsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongTermDebtFairValue

us-gaap:LongTermDebtFairValue


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value61667112116123613616517914812212015414113212614815677941391167381109108837596807893100616376
Percentage of LongTermDebtFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongtermDebtWeightedAverageInterestRate us-gaap:LongtermDebtType

us-gaap:LongtermDebtWeightedAverageInterestRate

saia:FinanceLeaseObligations


Longterm
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value3.53.53.483.50.0350.0350.03440.0340.0340.0340.034
Percentage of LongtermDebtWeightedAverageInterestRate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent


Operating
Period End2020-12-312019-12-31
Value4.74.8
Percentage of OperatingLeaseWeightedAverageDiscountRatePercent100.0100.0

us-gaap:OperatingLeasesFutureMinimumPaymentsDue

us-gaap:OperatingLeasesFutureMinimumPaymentsDue


Operating
Period End2020-12-31
Value142
Percentage of OperatingLeasesFutureMinimumPaymentsDue100.0

us-gaap:OperatingLeasesFutureMinimumPaymentsDueCurrent

us-gaap:OperatingLeasesFutureMinimumPaymentsDueCurrent


Operating
Period End2020-12-31
Value28
Percentage of OperatingLeasesFutureMinimumPaymentsDueCurrent100.0

us-gaap:OperatingLeasesFutureMinimumPaymentsDueInFiveYears

us-gaap:OperatingLeasesFutureMinimumPaymentsDueInFiveYears


Operating
Period End2020-12-31
Value13
Percentage of OperatingLeasesFutureMinimumPaymentsDueInFiveYears100.0

us-gaap:OperatingLeasesFutureMinimumPaymentsDueInFourYears

us-gaap:OperatingLeasesFutureMinimumPaymentsDueInFourYears


Operating
Period End2020-12-31
Value17
Percentage of OperatingLeasesFutureMinimumPaymentsDueInFourYears100.0

us-gaap:OperatingLeasesFutureMinimumPaymentsDueInThreeYears

us-gaap:OperatingLeasesFutureMinimumPaymentsDueInThreeYears


Operating
Period End2020-12-31
Value21
Percentage of OperatingLeasesFutureMinimumPaymentsDueInThreeYears100.0

us-gaap:OperatingLeasesFutureMinimumPaymentsDueInTwoYears

us-gaap:OperatingLeasesFutureMinimumPaymentsDueInTwoYears


Operating
Period End2020-12-31
Value25
Percentage of OperatingLeasesFutureMinimumPaymentsDueInTwoYears100.0

us-gaap:OperatingLeasesFutureMinimumPaymentsDueThereafter

us-gaap:OperatingLeasesFutureMinimumPaymentsDueThereafter


Operating
Period End2020-12-31
Value36
Percentage of OperatingLeasesFutureMinimumPaymentsDueThereafter100.0

us-gaap:PrepaidExpenseCurrent

us-gaap:PrepaidExpenseCurrent


Prepaid
Period End2020-12-312019-12-312018-12-312017-12-31
Value19182017
Percentage of PrepaidExpenseCurrent100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:RestrictedStock


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value73.8457.3548.9842.121.9117.3913.911.016.1914.71
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue


Share
Period End2020-12-31
Value15
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue


Sharebased
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value22.0718.9913.3612.3811.8813.599.828.02
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TaxCreditCarryforwardAmount

us-gaap:TaxCreditCarryforwardAmount


Tax
Period End2020-12-312019-12-312018-12-312016-12-312015-12-312014-12-31
Value1000000.02000000.01000000.01000000.01000000.01000000.0
Percentage of TaxCreditCarryforwardAmount100.0100.0100.0100.0100.0100.0

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value100000.0100000.0100000.0100000.0600000.01000000.01300000.01600000.01400000.01400000.01300000.0
Percentage of UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value1100000.01000000.0900000.01100000.01300000.01200000.01200000.01300000.01300000.02600000.0
Percentage of UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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
Value5666000.03742000.04028000.03991000.03222000.03451000.0
Percentage of ValuationAllowancesAndReservesBalance100.0100.0100.0100.0100.0100.0

us-gaap:WorkersCompensationDiscountAmount

us-gaap:WorkersCompensationDiscountAmount


Workers
Period End2020-12-312019-12-312018-12-312017-12-31
Value1800000.03800000.05000000.03500000.0
Percentage of WorkersCompensationDiscountAmount100.0100.0100.0100.0

Line plots across dimensions of each concept


TTM Greenblatt ROC
_
(None,)
T T M  Greenblatt  R O C_
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components
us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType
(None,)
Property Plant And Equipment Grossus-gaap: Property Plant And Equipment By Type
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components