MATX


Line plots across dimensions of each concept
Tables

Table of contents



us-gaap:CommonStockValue
us-gaap:StatementEquityComponents
us-gaap:CommonStockSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ProductOrService
us-gaap:StatementBusinessSegments
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:Revenues
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:CostOfRevenue
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:GrossProfit

us-gaap:OperatingCostsAndExpenses

us-gaap:CostsAndExpenses

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:OperatingIncomeLoss
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:InterestExpense

us-gaap:InterestPaidNet

us-gaap:OtherNonoperatingIncomeExpense
us-gaap:AwardType, us-gaap:IncomeStatementLocation
us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:IncomeLossFromContinuingOperations

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxesPaidNet
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:ProfitLoss
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

us-gaap:Assets

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:AssetsCurrent

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:ReceivablesNetCurrent
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:AssetsNoncurrent

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:Goodwill
us-gaap:StatementBusinessSegments

us-gaap:IntangibleAssetsNetExcludingGoodwill
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent

us-gaap:LiabilitiesCurrent

us-gaap:LongTermDebtCurrent

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:LiabilitiesNoncurrent

us-gaap:LongTermDebt
us-gaap:CreditFacility
us-gaap:LongtermDebtType

us-gaap:LongTermDebtNoncurrent

us-gaap:LongTermDebtAndCapitalLeaseObligations

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:StockIssuedDuringPeriodValueNewIssues
us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:ProfitLoss

us-gaap:DepreciationDepletionAndAmortization

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:PaymentsOfDividendsCommonStock
dei:LegalEntity, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentInterestRateStatedPercentage
us-gaap:LongtermDebtType

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

matx:CapitalExpendituresAndDryDockingIncurredButNotYetPaid
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
matx:DecreasedInRestrictedCash

matx:EquityMethodInvestmentIncreaseDueToSubsidiaryAcquisition
us-gaap:StatementEquityComponents
us-gaap:StatementBusinessSegments
matx:FuelSalesRevenue

matx:IncreaseDecreaseInDeferredDryDockingAmortization

matx:IncreaseDecreaseInDeferredDryDockingPayments

matx:IncreaseDecreaseInOperatingLeaseLiabilities
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
matx:IncreasedInRestrictedCash

matx:NumberOfSaleLeasebackTransactions
dei:LegalEntity, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
matx:NumberOfTerminalFacilitiesOnWhichInvesteeProvidesTerminalAndStevedoringServices
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments
matx:OceanTransportationServicesRevenue

matx:OperatingLeaseRightOfUseAssetsAmortization
us-gaap:StatementBusinessSegments
matx:PercentageOfOceanTransportationAndFuelSalesRevenuesDenominatedInForeignCurrency
us-gaap:StatementBusinessSegments
matx:PercentageOfTransportationBrokerageAndFreightServicesRevenueDenominatedinforeigncurrency

matx:ProceedsFromJointVenture
us-gaap:StatementBusinessSegments
matx:ShipManagementServicesRevenue
us-gaap:StatementBusinessSegments
matx:SupplyChainManagementAndOtherServicesRevenue
us-gaap:StatementBusinessSegments
matx:TerminalAndOtherRelatedServicesRevenue
us-gaap:StatementBusinessSegments
matx:TransportationBrokerageAndFreightForwardingServicesRevenue
us-gaap:StatementBusinessSegments
matx:WarehouseAndDistributionServicesRevenue

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect

us-gaap:CommonStockDividendsPerShareCashPaid
us-gaap:Range, us-gaap:CreditFacility, us-gaap:VariableRate
us-gaap:DebtInstrumentBasisSpreadOnVariableRate1

us-gaap:DecreaseInRestrictedCash
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

us-gaap:DeferredIncomeTaxesAndTaxCredits
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanInterestCost
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanServiceCost

us-gaap:DividendsCommonStockCash
us-gaap:StatementEquityComponents
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:EquityMethodInvestmentSummarizedFinancialInformationCostOfSales
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:EquityMethodInvestmentSummarizedFinancialInformationGrossProfitLoss
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:EquityMethodInvestmentSummarizedFinancialInformationRevenue

us-gaap:IncomeLossFromEquityMethodInvestments
us-gaap:StatementBusinessSegments

us-gaap:IncreaseDecreaseInAccountsAndNotesReceivable

us-gaap:IncreaseDecreaseInOtherNoncurrentLiabilities

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncreaseInRestrictedCash
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
us-gaap:PropertyPlantAndEquipmentByType
us-gaap:InterestCostsCapitalized

us-gaap:LeaseCost
us-gaap:Range, us-gaap:CreditFacility
us-gaap:LineOfCreditFacilityCommitmentFeePercentage
us-gaap:Range, us-gaap:CreditFacility
us-gaap:LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage

us-gaap:NumberOfReportableSegments

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeasePayments

us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeOtherNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherOperatingActivitiesCashFlowStatement

us-gaap:PaymentsForConstructionInProcess

us-gaap:PaymentsOfFinancingCosts
dei:LegalEntity, us-gaap:LongtermDebtType
us-gaap:CreditFacility
us-gaap:DebtInstrument

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsToAcquireOtherProductiveAssets
dei:LegalEntity, us-gaap:LongtermDebtType
us-gaap:ProceedsFromIssuanceOfDebt

us-gaap:ProceedsFromLinesOfCredit

us-gaap:ProceedsFromSaleOfProductiveAssets

us-gaap:RepaymentsOfDebt

us-gaap:RepaymentsOfLinesOfCredit

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:ShortTermLeaseCost
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesNewIssues

us-gaap:VariableLeaseCost

matx:LongTermDebtExcludingCurrentMaturitiesGross

us-gaap:AccruedLiabilitiesAndOtherLiabilities

us-gaap:AllowanceForDoubtfulAccountsReceivable
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:CashAndCashEquivalentsFairValueDisclosure
us-gaap:FairValueByMeasurementBasis
dei:LegalEntity, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentAnnualPrincipalPayment
dei:LegalEntity, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentFaceAmount

us-gaap:DebtIssuanceCostsLineOfCreditArrangementsNet

us-gaap:DeferredCosts

us-gaap:DeferredFinanceCostsNet

us-gaap:DividendsPayableCurrentAndNoncurrent
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:CreditFacility
us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
us-gaap:CreditFacility
us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:LongtermDebtPercentageBearingFixedInterestAmount
us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:LongtermDebtPercentageBearingVariableInterestAmount
us-gaap:FairValueByMeasurementBasis

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:RestrictedCashAndCashEquivalents
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementBasis

us-gaap:ShortTermBorrowings

Tables

  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:CommonStockValue ▃▃▂▂▂▂▂▂▂▂▁▁▃▃▂▂▂▃▄▃▃▃▃▂▂▂▂▂▂▂▁▁▁██████32.332.332.232.232.132.132.032.032.032.031.931.832.332.332.132.132.232.432.632.432.432.432.432.132.132.132.132.132.032.031.931.931.834.034.034.034.034.034.0NANA34.0
 us-gaap:CommonStockSharesOutstanding us-gaap:StatementEquityComponents us-gaap:CommonStock▇▆▅▅▅▄▃▃▃▃▁▁██▅43.143.042.942.942.942.842.742.742.742.742.542.543.243.242.9NANANA43.5NANANA43.2NANANA42.842.842.742.742.642.642.4NA45.3NANANA44.9NANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding ▄▄43.343.3NA43.343.243.1NA43.143.042.9NA43.243.343.4NA43.243.443.8NA44.044.043.9NA43.443.243.3NA43.343.043.0NA42.842.842.3NA42.142.241.8NA41.541.441.3
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic █▁43.143.0NA42.942.842.8NA42.742.742.6NA42.943.143.0NA42.843.143.4NA43.543.543.4NA43.043.042.9NA42.842.742.6NA42.542.341.9NA41.741.741.5NA41.341.241.1
us-gaap:EarningsPerShareBasic ▂▁▂▂▂▁▂▃▂▂█▂▂▁▂▂▂▂▂▃▁▂▂▂▂▁▁▂▂▁▂▂▁▁▁▁▂▁▂▂▂▂0.760.090.360.840.430.290.480.970.760.333.930.790.560.160.450.580.420.420.610.950.230.580.650.50.420.080.170.40.470.210.370.450.180.090.040.210.450.120.490.620.70.42
us-gaap:EarningsPerShareDiluted ▂▁▂▂▂▁▂▃▂▂█▂▂▁▂▂▂▂▂▃▁▂▂▂▂▁▁▂▂▁▂▂▁▁▁▁▂▁▂▂▂▂0.760.090.360.840.430.290.480.970.760.333.90.790.550.160.440.580.420.410.60.940.230.570.630.50.420.080.170.40.470.210.360.450.180.090.040.210.440.120.480.620.70.42
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ▆▆▇█▇▆▇█▇▆▆▇▆▅▆▅▅▄▅▇▄▃▄▄▄▂▃▃▃▂▃▃▂▃▄▄▅▃▄▄▃▁524.1513.9540.7572.1557.9532.4564.9589.4557.1511.4516.1543.9512.5474.4519.3500.4467.7454.2494.8544.3447.6398.2443.5441.8436.4392.5410.9415.0416.6394.7398.3401.4394.2405.0460.2440.2488.2405.6437.6437.3396.8343.1
 us-gaap:Revenues us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName matx:SsaTerminalsLlc243.3NANANA268.8NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfRevenue us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName matx:SsaTerminalsLlc229.9NANANA265.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:GrossProfit us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName matx:SsaTerminalsLlc13.4NANANA3.8NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OperatingCostsAndExpenses ▆▆▇▇▇▇██▇▆▆▆▅▅▆▅▄▃▅▅▃▁▃▃▃▂▃▂▂▂▂▂▁▁▂▁▁426.3448.3465.5472.6472.8467.1484.3485.5465.9439.3446.0436.1422.9412.2441.4411.4389.9376.4402.6424.8364.5318.2355.0363.8366.9347.8361.0353.6344.9342.8342.1337.0329.0329.7336.2324.7323.0NANANANANA
us-gaap:CostsAndExpenses ▆▇▇▇█▇██▇▆▆▆▅▅▆▅▄▄▅▆▃▁▃▃▃▂▃▂▂▂▂▂▁▃▄▃▅▁▃▃▁472.9500.9515.3516.9526.9514.9534.4530.8511.1482.7490.8482.1466.6458.0483.0454.2431.6419.6448.9472.5413.9353.3394.1396.8400.7382.6393.0387.8380.1376.0374.4367.2361.7392.8440.3403.8462.7358.4406.6394.3355.6NA
us-gaap:SellingGeneralAndAdministrativeExpense ▆█▇▇▇██▇▇▇▇▇▆▆▆▅▅▅▆▇▇▃▄▃▃▃▂▂▂▂▂▁▁▃▄▃▃▃▄▄▃▃50.356.652.852.755.056.358.154.554.353.953.753.550.650.748.246.444.745.849.752.254.638.540.336.135.935.033.031.834.433.432.430.628.539.041.137.337.937.742.040.436.938.7
us-gaap:OperatingIncomeLoss ▆▂▃▆▄▂▄▇▅▄▃▇▅▂▄▅▄▄▅█▄▅▆▅▄▂▃▃▄▃▃▄▄▂▃▄▃▁▅▅▅▂51.213.025.455.231.017.530.558.646.028.725.361.845.916.436.346.236.134.645.971.833.744.949.445.035.79.917.927.236.518.723.934.232.512.217.836.425.52.742.643.041.211.1
us-gaap:InterestExpense ██▅▅▅▄▄▄▄▄▅▅▆▆▆▅▆▄▄▄▄▄▄▄▄▃▃▃▃▃▃▃▁▅▅▆▅▅▅▆▆▆8.28.65.66.26.14.64.34.45.05.05.46.26.36.36.76.06.54.94.94.74.64.34.34.44.54.13.53.63.63.73.84.01.96.16.26.36.16.26.26.36.56.5
us-gaap:InterestPaidNet ▆▆▅▆▅▅▅▅▅▅▅▆▆▆▅▅▆▅▅▅▅▅▅▅▅▅▅▅▅▅▅▆▄▆▅█▄▄▁█▅▄9.38.65.29.03.04.83.85.63.65.33.47.76.36.54.14.17.44.24.54.64.73.94.64.04.71.94.91.94.92.14.810.8-11.37.04.035.0-7.0-8.0-46.034.0-5.0-8.0
us-gaap:OtherNonoperatingIncomeExpense ▅▄▃▂▄▄▄▄▃▄▃█▁▁1.50.60.3-0.50.80.60.70.70.40.80.53.5-1.1-0.8NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:AllocatedShareBasedCompensationExpense us-gaap:AwardType,us-gaap:IncomeStatementLocation matx:TimeBasedAndPerformanceBasedShares,us-gaap:SellingGeneralAndAdministrativeExpenses▁█3.03.1NA2.53.03.2NA2.72.82.7NA2.92.32.6NA3.03.42.8NA2.0NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncomeLossFromContinuingOperations ▂▁▂▂▂▁▂▃▂▂█▂▂▁▂▂▂▂▂▃▁▂▂▂▂▁▁▂▂▁▂▂▂▁▁▂▂▁▂▂▂▁32.83.815.636.218.412.520.641.632.614.2166.934.124.07.019.425.018.018.126.641.59.925.027.821.518.13.47.317.220.19.115.719.015.32.83.718.313.21.318.825.622.23.2
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▅▁▃▆▃▂▄▇▅▃▃▇▅▂▄▅▄▄▅█▄▅▆▅▄▁▂▃▄▂▃▄▄▁▁▄▃▂▄▅▄▁44.55.020.148.525.713.526.954.941.424.519.955.639.610.129.640.229.629.741.067.129.140.645.140.631.25.814.423.632.915.020.130.230.64.64.529.021.714.531.941.235.45.8
us-gaap:IncomeTaxExpenseBenefit ▇▇▇▇▇▇▇█▇▇▁██▇▇█▇▇██████▇▇▇▇▇▇▇▇█▇▇▇▇▇▇█▇▇11.71.24.512.37.31.06.313.38.810.3-147.021.515.63.110.215.211.611.614.425.619.215.617.319.113.12.47.16.412.85.94.411.215.31.80.810.78.50.913.115.613.23.2
us-gaap:IncomeTaxesPaidNet ▁▄▅▄▁▃▄▄▅▄▅▄▄▄▄▆▅▄▅▅█▅▆▆▇▄▂▄-20.7-0.31.50.5-20.8-5.40.60.44.00.22.70.2-0.70.4-0.610.85.5-0.15.87.222.84.28.19.413.6-0.9-12.30.0NANA14.542.3-15.11.010.029.0-14.00.0-86.061.0-21.00.0
 us-gaap:ProfitLoss us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName matx:SsaTerminalsLlc12.3NANANA4.2NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax us-gaap:StatementEquityComponents matx:AccumulatedOther█▁0.3-0.5NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedOtherComprehensiveIncome█▁0.3-0.5NANANANANANANANANANANANANA0.6NA-0.1NA0.80.60.1NANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss ▂▁▂▂▂▁▂▃▂▂█▂▂▁▂▂▂▂▂▃▁▂▂▂▂▁▁▂▂▁▂▂▁▁▁▁▂▁▂▂▂▂32.83.815.636.218.412.520.641.632.614.2166.934.124.07.019.425.018.018.126.641.59.925.027.821.518.13.47.317.220.19.115.619.17.83.81.68.718.75.220.225.728.917.3
us-gaap:ComprehensiveIncomeNetOfTax ▃▁▂▃▂▂▂▃▂▂█▃▂▁▂▂▂▂▂▃▂▂▁▂▂32.93.214.435.717.912.317.641.731.714.4164.433.625.07.716.926.218.819.429.243.111.225.9-3.522.218.6NANANANANANANANANA-12.710.519.5NA13.127.231.6NA
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic ▂▁▂▂▂▁▂▃▂▁█▂▂▁▂▂▂▂▂▃▁▂▂▂▂▁▁▂▂▁32.83.815.636.218.412.520.641.632.614.2166.934.124.07.019.425.018.018.126.641.59.925.027.821.518.13.47.317.220.19.1NANANANANANANANANANANANA
us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted ▂▁▂▂▂▁▂▃▂▁█▂▂▁▂▂▂▂▂▃▁▂▂▂▂▁▁▂▂▁32.83.815.636.218.412.520.641.632.614.2166.934.124.07.019.425.018.018.126.641.59.925.027.821.518.13.47.317.220.19.1NANANANANANANANANANANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 Cost Ratio us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName matx:SsaTerminalsLlc243.3NANANA268.8NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Gross Margin us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName matx:SsaTerminalsLlc243.3NANANA268.8NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:ConsolidationItems us-gaap:OperatingSegments▂▁▄▆▅▃▆█▅▁524.1513.9540.7572.1557.9532.4564.9589.4557.1511.4NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,matx:LogisticsServicesSegment▄▄▅▆▇▆▇██▆▅▅▄▃▄▃▂▁113.3113.0124.6134.9142.5134.5146.8152.1150.5132.1126.2124.7119.8104.4113.2102.496.888.1NA99.5100.992.7NA112.3115.3NANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,matx:OceanTransportationSegment▅▄▆█▆▄▆█▅▂▃▆▄▁▅▄▁▁410.8400.9416.1437.2415.4397.9418.1437.3406.6379.3389.9419.2392.7370.0406.1398.0370.9366.1NA444.8346.7305.5NA329.5321.1NANANANANANANANANANANANANANANANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:Assets ████▇▇▆▆▆▆▆▅▅▅▅▅▃▃▃▃▃▂▂▂▂▂▁▁▁▁▁▁▁▇▇▇▇▇▇2777.62835.92845.42753.82657.52676.82430.42421.22381.62287.92247.52167.02039.32034.42015.52073.11688.21674.31669.81736.71726.21426.91401.81360.81364.61344.31248.31220.21168.51149.21174.31158.51189.52574.02544.02559.02556.02516.02495.0NANA2495.0
us-gaap:LiabilitiesAndStockholdersEquity ████▇▇▆▆▆▆▆▅▅▅▅▅▃▃▃▃▃▂▂▂▂▂▁▁▁▁▁▁▁▇▇▇▇▇▇2777.62835.92845.42753.82657.52676.82430.42421.22381.62287.92247.52167.02039.32034.42015.52073.11688.21674.31669.81736.71726.21426.91401.81360.81364.61344.31248.31220.21168.51149.21174.31158.51189.52574.02544.02559.02556.02516.02495.0NANA2495.0
us-gaap:StockholdersEquity ▅▅▅▅▅▅▅▅▅▄▄▃▃▃▃▃▂▃▃▂▂▂▂▂▂▂▂▂▁▁▁▁▁██████815.5800.2805.7797.7765.2763.0755.3743.7699.5682.4678.2518.6475.9466.1471.5459.2434.4439.7450.6431.1386.9385.3363.8366.9342.0335.9338.2315.6292.4284.1279.9271.9247.31127.01123.01145.01133.01135.01136.0NANA1136.0
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AssetsCurrent ▂▃▃▃▃▃▃▃▂▂▂▃▂▃▂▃▂▂▂▄▃█▇▆▆▆▄▃▂▁▁▁▂▃▂▃▃▂▂273.6308.7289.6299.5289.6306.6318.4301.1283.6268.8266.0303.0281.9287.5274.2310.4253.8258.9277.9348.3322.9555.0519.5464.7478.2457.2348.9312.1253.7215.4234.1210.5236.8289.0275.0286.0298.0283.0264.0NANA264.0
us-gaap:CashAndCashEquivalentsAtCarryingValue ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁█▇▆▆▆▃▃▂▁▁▁▂▁▁▁▁▁▁19.519.921.223.624.015.419.612.112.813.719.824.715.319.513.916.419.220.125.525.515.8325.8293.4230.9223.7229.7114.581.839.111.019.911.535.519.022.017.015.017.014.0NANA14.0
us-gaap:ReceivablesNetCurrent ▆▆▅▆▅▆▆█▆▅▄▆▄▄▃▇▅▅▆█▆▄▄▄▄▂▃▂▂▁▂▁▂▁▂▂▃▂▁215.2218.8205.9223.9213.0217.9223.7240.7221.7209.1194.6213.9198.6197.9189.5225.6206.4210.4214.3239.5223.6201.8197.6192.5196.7177.9182.3171.1179.6167.5174.7166.4170.6168.0173.0177.0189.0176.0165.0NANA165.0
us-gaap:PrepaidExpenseAndOtherAssetsCurrent ▃▇▆▅▅██▅▅▄▅▇▇▇▇▇▂▂▃▄▄▁▁▃▅▄▄▅▂▂▂▂▂▃▃▂▃38.970.062.552.052.673.375.148.349.146.051.664.468.070.170.868.428.228.438.141.541.419.620.532.148.840.543.048.324.125.328.626.824.933.032.029.038.0NA33.0NANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AssetsNoncurrent ███▇▆▆▄▄▄▃▃▂▁▁▁2504.02527.22555.82454.32367.92370.22112.02120.12098.02019.11981.51864.01757.41746.91741.3NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PropertyPlantAndEquipmentGross ▇██▇▆▆▆▆▆▅▄▃▂▁▁2756.12843.02836.72706.52603.42653.42615.22641.42617.42508.32444.22356.52230.82173.42151.9NANANA1988.9NANANA1798.2NANANA1794.81783.11782.21782.91770.81779.81771.32962.02962.02947.02922.02905.02901.0NANA2901.0
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment ▃▆▅▅▄▆▆▇█▇▇▆▅▅▄▃▂▂▁▂1177.71253.41238.61221.01204.71267.21248.61294.21310.31293.31278.51257.31241.81222.61202.71183.81165.61147.91128.61153.8NANA1107.0NANANA1059.41046.91038.21023.91008.31003.3988.31348.01328.01308.01288.01272.01250.0NANA1250.0
us-gaap:PropertyPlantAndEquipmentNet ▇██▇▆▆▆▆▆▅▅▄▃▃▃▃▂▂▂▂▂▁▁▁▁▁▁▁▁▂▂▂▂██████1578.41589.61598.11485.51398.71386.21366.61347.21307.11215.01165.71099.2989.0950.8949.2908.1873.3857.4860.3839.9839.2678.7691.2706.3721.4722.9735.4736.2744.0759.0762.5776.5783.01614.01634.01639.01634.01633.01651.0NANA1651.0
us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures ▁▁▁▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁█████▇77.574.376.283.786.791.387.079.194.496.793.287.887.387.382.475.872.269.066.468.268.967.864.463.260.157.857.656.659.059.759.659.558.7353.0347.0349.0341.0332.0329.0NANA329.0
us-gaap:Goodwill ████████████████▆▆▆▆▆▁▁327.8327.8327.8327.8327.8327.8327.8323.7323.7323.7323.7323.7323.7323.7323.7324.1245.1241.6241.6248.3247.127.427.4NANANA27.4NANANA27.0NANANA27.0NANANA27.0NANANA
us-gaap:IntangibleAssetsNetExcludingGoodwill ▁▁▂▂▃▃▄▄▅▅▆▆▇▇█197.5200.2202.9205.7208.4211.2214.0216.8219.6222.4225.2228.0230.9233.7236.6NANANA139.1NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass us-gaap:CustomerLists▁▁▂▂▃▃▄▄▅▅▆▆▇▇█170.2172.9175.6178.4181.1183.9186.7189.5192.3195.1197.9200.7203.6206.4209.3NANANANANANANA2.5NANANA3.6NANANA3.5NANANANANANANANANANANA
us-gaap:OperatingLeaseRightOfUseAsset ▂▇█▄▁▃241.9253.8256.1246.0238.5243.3NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent ▁▁▂▂▂▂▂▃▄▄▄▁▁▁▁▁▁▁▁▄▄▃▃▅▃▃▃▆▅▆▆▅▅█▇▇▇▇▆28.929.337.849.649.950.249.575.679.380.884.530.130.930.129.128.129.129.626.979.478.968.169.396.374.175.475.2115.3111.8115.1118.1112.0111.0164.0144.0150.0154.0141.0126.0NANA126.0
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:LiabilitiesCurrent ▇█▇▇▇▇▆▄▄▃▃▃▃▃▃▄▄▃▄▄▄▂▂▁▂▁▁▁▁▁▁▁▂▃▃▃▃▆▅449.6470.9436.7437.7425.4411.1370.8325.7315.5275.6286.3284.5276.0261.3279.2290.2289.7261.2297.6298.1306.7223.8223.5204.8221.7199.3200.6189.3206.1185.8193.4193.9207.7276.0278.0285.0284.0383.0353.0NANA353.0
us-gaap:LongTermDebtCurrent ▇█▇▇█▇▆▆▅▅▄▄▄▄▄▃▃▃▃▃▃▃▃▂▂▁▁50.553.448.448.453.645.242.142.136.336.530.829.231.331.631.826.321.821.722.022.224.321.621.617.117.112.512.5NANANA16.4NANANA17.5NANANANANANANA
us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent ▃█▁247.4275.7235.7NANANA246.8NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OperatingLeaseLiabilityCurrent ▁▆█63.565.566.6NANA54.3NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:LiabilitiesNoncurrent ▇██▇▇▇▆▆▆▆▆▆▆▆▅▆▃▃▃▄▄▂▂▂▂▂▁▁▁▁▁▁▁▅▅▄▅▃▄1512.51564.81603.01518.41466.91502.71304.31351.81366.61329.91283.01363.91287.41307.01264.81323.7964.1973.4921.61007.51032.6817.8814.5789.1800.9809.1709.5715.3670.0679.3701.0692.7734.51171.01143.01129.01139.0998.01006.0NANA1006.0
us-gaap:LongTermDebt ▇██▇▇▇▇▇█▇▇▇▆▆▆▆▃▃▂▃▃▂▂▂▂▂▁▁▁▁▁▁▂▄▄▄890.0924.9958.4883.0844.6868.1856.4908.1932.5903.6857.1839.3753.9780.3738.9812.4462.8481.2429.9481.5516.6371.2373.6377.5379.9383.6286.1289.9292.4301.1319.1328.6372.8541.0559.0570.0NANA522.0NANANA
us-gaap:LongTermDebtNoncurrent ▇██▇▇▇▇███▇▇▆▆▆▇▃▃▂▃▃▂▂▂▂▂▁▁▁▁▁▁▂▄▄▄▄▂▂823.5871.5910.0834.6791.0822.9814.3866.0896.2867.1826.3810.1722.6748.7707.1786.1441.0459.5407.9459.3492.3349.6352.0360.4362.8371.1273.6277.4280.0283.7302.7307.2344.4541.0507.0503.0510.0374.0386.0NANA386.0
us-gaap:LongTermDebtAndCapitalLeaseObligations ▇██▇▇▇▇███▇▇▆▆▆▇▃▃▂▃▃▂▂▂▂▂▁839.5871.5910.0834.6791.0822.9814.3866.0896.2867.1826.3810.1722.6748.7707.1786.1441.0459.5407.9459.3492.3349.6352.0360.4362.8371.1273.6NANANA302.7NANANA180.0NANANANANANANA
us-gaap:DeferredIncomeTaxLiabilitiesNet █▃▁348.8340.2337.6NANANA312.7NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesNoncurrent ▇▇▇▇▇▇█████▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂▂▂▂153.7155.9157.4157.9163.0165.2177.3174.3170.6171.2171.542.339.541.540.338.537.538.437.739.338.835.735.536.835.436.735.435.038.238.238.433.433.051.050.057.055.055.054.0NANA54.0
us-gaap:OperatingLeaseLiabilityNoncurrent ▁██▃▃▇186.5197.2198.0190.0189.0196.7NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:StockholdersEquity ▅▅▅▅▅▅▅▅▅▄▄▃▃▃▃▃▂▃▃▂▂▂▂▂▂▂▂▂▁▁▁▁▁██████815.5800.2805.7797.7765.2763.0755.3743.7699.5682.4678.2518.6475.9466.1471.5459.2434.4439.7450.6431.1386.9385.3363.8366.9342.0335.9338.2315.6292.4284.1279.9271.9247.31127.01123.01145.01133.01135.01136.0NANA1136.0
us-gaap:CommonStockValue ▃▃▂▂▂▂▂▂▂▂▁▁▃▃▂▂▂▃▄▃▃▃▃▂▂▂▂▂▂▂▁▁▁██████32.332.332.232.232.132.132.032.032.032.031.931.832.332.332.132.132.232.432.632.432.432.432.432.132.132.132.132.132.032.031.931.931.834.034.034.034.034.034.0NANA34.0
us-gaap:AdditionalPaidInCapitalCommonStock ████▇▇▇▇▇▆▇▆▆▆▇▆▆▆▆▆▆▆▅▅▄▄▄▄▄▄▃▃▃▃▂▂▂▁▁306.7304.7306.2303.2300.7297.8297.8293.7291.2288.1289.7285.8287.4285.2289.8286.0283.5282.0287.9284.9283.7278.0274.9267.4264.8262.8261.9260.1255.2252.9252.7251.5246.9252.0239.0236.0234.0228.0223.0NANA223.0
us-gaap:RetainedEarningsAccumulatedDeficit ▅▅▅▅▄▄▄▄▄▄▄▃▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁██████513.9500.7504.2498.0467.6467.8460.0449.5407.9393.0381.5223.4200.6194.0195.7184.7163.5170.9177.0163.3121.9127.3109.889.467.864.267.767.350.143.440.831.412.3942.0953.0964.0956.0964.0972.0NANA972.0
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▆▆▇▇▇▇▇▇▇▇██▆▆▆▆▆▆▆▅▅▅▅████▆▆▆▆▆▆▁▁▂▂▂▂-37.4-37.5-36.9-35.7-35.2-34.7-34.5-31.5-31.6-30.7-24.9-22.4-44.4-45.4-46.1-43.6-44.8-45.6-46.9-49.5-51.1-52.4-53.3-22.0-22.7-23.2-23.5-43.9-44.9-44.2-45.5-42.9-43.7-90.0-92.0-78.0-80.0-80.0-82.0NANA-82.0
us-gaap:StockIssuedDuringPeriodValueNewIssues █▁-1.0-4.5NA0.1-0.1-3.1NA-0.20.3-4.2NANA-0.1-6.7NANANANANANANANANANANANA0.12.20.4-1.00.13.2NANANANANANANANANANA
 us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents us-gaap:AdditionalPaidInCapital█▁-1.0-4.6NANA-0.1-3.2NA-0.20.3-4.3NANA-0.1-6.9NANANANANANANANANANANANA0.12.10.4-1.10.13.1NANANANANANANANANANA
 us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents us-gaap:CommonStockNA0.1NA0.1NA0.1NANANA0.1NANANA0.2NANANANANANANANANANANANA0.00.10.00.10.00.1NANANANANANANANANANA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue ▁█3.03.1NA2.53.03.2NA2.72.82.7NA2.92.32.6NANANANANANANANANANANANA1.61.51.51.31.11.1NANANANANANANANANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▆▆▆▆▆▃█▇▇▃▆▇▅▁▆▁72.068.668.472.274.833.4102.083.989.229.977.983.659.44.070.38.7NANANANANANANANANANANANANANANANA40.7-20.044.025.028.0-11.069.042.034.05.0
us-gaap:NetCashProvidedByUsedInInvestingActivities ▇▇▄▅▇▇▇▆▅▆▅▄▇▇█▁-14.4-20.7-138.6-101.5-33.6-33.2-28.9-51.0-110.6-69.8-92.3-132.2-28.2-24.27.3-263.9NANANANANANANANANANANANANANANANA28.7-19.0-15.0-24.0-22.0-10.0-73.0-26.0-29.0-22.0
us-gaap:NetCashProvidedByUsedInFinancingActivities ▁▂▄▃▂▃▁▂▃▃▃▄▂▃▁█-60.8-50.666.328.9-32.8-0.4-60.7-33.620.533.89.558.0-35.425.8-80.1252.4NANANANANANANANANANANANANANANANA-43.236.0-24.01.0-8.024.04.0-38.011.021.0
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▆▆▆▆▆▃█▇▇▃▆▇▅▁▆▁72.068.668.472.274.833.4102.083.989.229.977.983.659.44.070.38.7NANANANANANANANANANANANANANANANA40.7-20.044.025.028.0-11.069.042.034.05.0
us-gaap:NetIncomeLoss ▂▁▂▂▂▁▂▃▂▂█▂▂▁▂▂▂▂▂▃▁▂▂▂▂▁▁▂▂▁▂▂▁▁▁▁▂▁▂▂▂▂32.83.815.636.218.412.520.641.632.614.2166.934.124.07.019.425.018.018.126.641.59.925.027.821.518.13.47.317.220.19.115.619.17.83.81.68.718.75.220.225.728.917.3
 us-gaap:ProfitLoss us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName matx:SsaTerminalsLlc12.3NANANA4.2NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:DepreciationDepletionAndAmortization █▇▇▇▆▆▆▆▆▆▇▆▇▆▇▆▆▆▆▆▄▄▄▄▄▄▄▄▄▄▃▄▁▇██▇▇█▇▇▇28.627.027.025.924.223.323.623.224.023.626.924.625.124.625.324.223.823.824.323.518.816.817.217.317.717.517.617.117.517.516.518.810.227.028.028.026.027.028.027.026.026.0
us-gaap:IncreaseDecreaseInAccountsPayable ▁▇▃▅▃▁█▄▆▂▄▆▄▂▂▃▆▂▃▃▃▄▄▃▄▄▃▂▅▃▄▄▂▃-24.938.9-2.217.9-9.2-20.446.46.429.4-11.05.923.93.9-13.3-10.2-0.521.1-9.9-7.3-0.2-9.37.47.7-1.22.34.7-2.6-12.519.2-1.91.69.5-13.6-5.4NANANANANANANANA
us-gaap:ShareBasedCompensation ▅▅▄▄▅▅▆▄▄▄▅▅▄▄▃▅▆▄▄▃█▄▅▃▃▃▂▂▂▂▂▂▁▁3.03.12.62.53.03.23.92.72.82.73.32.92.32.62.03.03.42.82.62.04.82.83.11.91.91.81.61.51.51.31.11.11.00.8NANANANANANANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▇▇▄▅▇▇▇▆▅▆▅▄▇▇█▁-14.4-20.7-138.6-101.5-33.6-33.2-28.9-51.0-110.6-69.8-92.3-132.2-28.2-24.27.3-263.9NANANANANANANANANANANANANANANANA28.7-19.0-15.0-24.0-22.0-10.0-73.0-26.0-29.0-22.0
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▁▂▄▃▂▃▁▂▃▃▃▄▂▃▁█-60.8-50.666.328.9-32.8-0.4-60.7-33.620.533.89.558.0-35.425.8-80.1252.4NANANANANANANANANANANANANANANANA-43.236.0-24.01.0-8.024.04.0-38.011.021.0
us-gaap:PaymentsOfDividendsCommonStock ▄▄▄▄▃▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁█▇▇▇█▇▇▇▇▇9.69.59.59.59.19.19.19.08.68.78.68.78.28.38.28.27.97.98.07.97.47.57.47.47.06.96.96.96.56.56.46.413.713.013.013.014.013.013.013.013.013.0
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 us-gaap:DebtInstrumentInterestRateStatedPercentage dei:LegalEntity,us-gaap:LongtermDebtType matx:MatNav,matx:TitleXiNotesNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:LongtermDebtType matx:SecuredBondsPayable1.22PercentThrough20431.22e-08NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:LongtermDebtType matx:SecuredBondsPayable1.35PercentThrough20441.35e-08NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA

None

us-gaap:CommonStockValue

us-gaap:CommonStockValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-03-312009-12-31
Value3232323232323232323231313232323232323232323232323232323232323131313434343434343433
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.21.11.11.21.21.21.31.31.31.41.41.51.61.61.61.51.91.92.01.91.92.32.32.42.42.42.62.62.72.82.72.82.71.31.31.31.31.41.41.41.4

None

us-gaap:CommonStockSharesOutstanding us-gaap:StatementEquityComponents

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-312010-12-312009-12-31
Value434342424242424242424242434342434342424242424242454444
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value4343434343434342434343434343444443434343434343424242424241414141
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value4343424242424242424343424343434343434342424242424241414141414141
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.760.090.360.840.430.290.480.970.760.333.930.790.560.160.450.580.420.420.610.950.230.580.650.50.420.080.170.40.470.210.370.450.180.090.040.210.450.120.490.620.70.42
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.760.090.360.840.430.290.480.970.760.333.90.790.550.160.440.580.420.410.60.940.230.570.630.50.420.080.170.40.470.210.360.450.180.090.040.210.440.120.480.620.70.42
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value524513540572557532564589557511516543512474519500467454494544447398443441436392410415416394398401394405460440488405437437396343
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems

us-gaap:IntersegmentElimination


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value241927282521222726184912108.7516.71.91.72.43.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.63.85.04.94.54.14.04.74.83.69.62.32.11.810.01.30.40.40.50.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.63.85.04.94.54.14.04.74.83.69.62.32.11.810.01.30.40.40.50.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value524513540572557532564589557511
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:IntersegmentElimination, matx:LogisticsServicesSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value1210.0131411101012
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.31.92.52.52.12.01.92.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.31.92.52.52.12.01.92.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination matx:LogisticsServicesSegment100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IntersegmentElimination, matx:OceanTransportationSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value119.4131413111115
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.31.82.52.42.52.12.12.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.31.82.52.42.52.12.12.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination matx:OceanTransportationSegment100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, matx:LogisticsServicesSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-30
Value11311312413414213414615215013212612411910411310296889910092112115
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.622.023.023.625.525.326.025.827.025.824.522.923.422.021.820.520.719.418.322.523.325.426.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.622.023.023.625.525.326.025.827.025.824.522.923.422.021.820.520.719.418.322.523.325.426.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments matx:LogisticsServicesSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, matx:OceanTransportationSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-30
Value410400416437415397418437406379389419392370406398370366444346305329321
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax78.478.077.076.474.574.774.074.273.074.275.577.176.678.078.279.579.380.681.777.576.774.673.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax78.478.077.076.474.574.774.074.273.074.275.577.176.678.078.279.579.380.681.777.576.774.673.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments matx:OceanTransportationSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService

matx:Logistics


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value113113124134142134146152150132
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.622.023.023.625.525.326.025.827.025.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.622.023.023.625.525.326.025.827.025.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax matx:Logistics100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

matx:OceanTransportation


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value410400416437415397418437406379
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax78.478.077.076.474.574.774.074.273.074.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax78.478.077.076.474.574.774.074.273.074.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax matx:OceanTransportation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementBusinessSegments

matx:LogisticsServicesSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value1131131241341421341461521501321261241191041131029688939910092110112115971011041069494949486929910391
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.622.023.023.625.525.326.025.827.025.824.522.923.422.021.820.520.719.419.018.322.523.324.925.426.424.924.725.325.624.023.823.524.021.420.222.521.122.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.622.023.023.625.525.326.025.827.025.824.522.923.422.021.820.520.719.419.018.322.523.324.925.426.424.924.725.325.624.023.823.524.021.420.222.521.122.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax matx:LogisticsServicesSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

matx:OceanTransportationSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value410400416437415397418437406379389419392370406398370366401444346305333329321294309310310299303307299279282281274238
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax78.478.077.076.474.574.774.074.273.074.275.577.176.678.078.279.579.380.681.081.777.576.775.174.673.675.175.374.774.476.076.276.576.069.061.363.956.258.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax78.478.077.076.474.574.774.074.273.074.275.577.176.678.078.279.579.380.681.081.777.576.775.174.673.675.175.374.774.476.076.276.576.069.061.363.956.258.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax matx:OceanTransportationSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:Revenues us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:Revenues

matx:SsaTerminalsLlc


None
Period End2020-06-302019-06-30
Value243268
Percentage of Revenues100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax46.448.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax matx:SsaTerminalsLlc0.00.0

None

us-gaap:CostOfRevenue us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:CostOfRevenue

matx:SsaTerminalsLlc


None
Period End2020-06-302019-06-30
Value229265
Percentage of CostOfRevenue100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax43.947.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax matx:SsaTerminalsLlc0.00.0

None

us-gaap:GrossProfit us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:GrossProfit

matx:SsaTerminalsLlc


None
Period End2020-06-302019-06-30
Value133.8
Percentage of GrossProfit100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.60.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax matx:SsaTerminalsLlc0.00.0

None

us-gaap:OperatingCostsAndExpenses

us-gaap:OperatingCostsAndExpenses


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value426448465472472467484485465439446436422412441411389376402424364318355363366347361353344342342337329329336324323
Percentage of OperatingCostsAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax81.387.286.182.684.787.785.782.483.685.986.480.282.586.985.082.283.482.981.478.081.479.980.082.384.188.687.985.282.886.985.984.083.581.473.173.866.2

None

us-gaap:CostsAndExpenses

us-gaap:CostsAndExpenses


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value472500515516526514534530511482490482466458483454431419448472413353394396400382393387380376374367361392440403462358406394355
Percentage of CostsAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax90.297.595.390.494.496.794.690.191.794.495.188.691.096.593.090.892.392.490.786.892.588.788.989.891.897.595.693.491.295.394.091.591.897.095.791.794.888.492.990.289.6

None

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:SellingGeneralAndAdministrativeExpense


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value505652525556585454535353505048464445495254384036353533313433323028394137373742403638
Percentage of SellingGeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.611.09.89.29.910.610.39.29.710.510.49.89.910.79.39.39.610.110.09.612.29.79.18.28.28.98.07.78.38.58.17.67.29.68.98.57.89.39.69.29.311.3

None

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value511325553117305846282561451636463634457133444945359.917273618233432121736252.742434111
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.82.54.79.65.63.35.49.98.35.64.911.49.03.57.09.27.77.69.313.27.511.311.110.28.22.54.46.68.84.76.08.58.23.03.98.35.20.79.79.810.43.2

us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems

us-gaap:OperatingSegments


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-30
Value5113255531173058462823614516394636347133444535
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.091.7100.0100.0100.0109.6100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.82.54.79.65.63.35.49.98.35.64.511.49.03.57.79.27.77.613.27.511.310.28.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments9.82.54.79.65.63.35.49.98.35.60.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, matx:LogisticsServicesSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-30
Value8.95.17.611118.19.19.99.54.24.97.26.91.94.93.52.21.62.92.31.02.42.9
Percentage of OperatingIncomeLoss17.439.229.920.536.546.329.816.920.714.619.411.715.011.613.57.66.14.64.06.82.25.38.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.71.01.42.02.01.51.61.71.70.80.91.31.30.40.90.70.50.40.50.50.30.50.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments matx:LogisticsServicesSegment7.94.56.18.47.96.06.26.56.33.23.95.85.81.84.33.42.31.82.92.31.12.12.5

us-gaap:OperatingSegments, matx:OceanTransportationSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-30
Value427.91743199.42148362418543914344233336831434232
Percentage of OperatingIncomeLoss82.660.870.179.563.553.770.283.179.385.472.388.385.088.496.192.493.995.496.093.297.894.791.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.11.53.37.73.51.83.88.36.64.83.510.07.63.16.78.57.27.312.77.011.09.67.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments matx:OceanTransportationSegment10.32.04.310.04.72.45.111.19.06.54.713.09.93.98.610.79.19.015.59.114.412.910.2

None

us-gaap:InterestExpense

us-gaap:InterestExpense


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value8.28.65.66.26.14.64.34.45.05.05.46.26.36.36.76.06.54.94.94.74.64.34.34.44.54.13.53.63.63.73.84.01.96.16.26.36.16.26.26.36.56.5
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.61.71.01.11.10.90.80.70.91.01.01.11.21.31.31.21.41.11.00.91.01.11.01.01.01.00.90.90.90.91.01.00.51.51.31.41.21.51.41.41.61.9

None

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value9.38.65.29.03.04.83.85.63.65.33.47.76.36.54.14.17.44.24.54.64.73.94.64.04.71.94.91.94.92.14.810-11.37.04.035-7.0-8.0-46.034-5.0-8.0
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.81.71.01.60.50.90.71.00.61.00.71.41.21.40.80.81.60.90.90.81.11.01.00.91.10.51.20.51.20.51.22.7-2.91.70.98.0-1.4-2.0-10.57.8-1.3-2.3

None

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1500000.0600000.0300000.0-500000.0800000.0600000.0700000.0700000.0400000.0800000.0500000.03500000.0-1100000.0-800000.0
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.10.1-0.10.10.10.10.10.10.20.10.6-0.2-0.2

None

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:AwardType, us-gaap:IncomeStatementLocation

us-gaap:AllocatedShareBasedCompensationExpense

matx:TimeBasedAndPerformanceBasedShares, us-gaap:SellingGeneralAndAdministrativeExpenses


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-30
Value3.03.12.53.03.22.72.82.72.92.32.63.03.42.82.0
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.60.60.40.50.60.50.50.50.50.40.50.60.70.60.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax matx:TimeBasedAndPerformanceBasedShares us-gaap:SellingGeneralAndAdministrativeExpenses0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:IncomeLossFromContinuingOperations

us-gaap:IncomeLossFromContinuingOperations


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value323.8153618122041321416634247.01925181826419.9252721183.47.317209.11519152.83.718131.31825223.2
Percentage of IncomeLossFromContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.30.72.96.33.32.33.67.15.92.832.36.34.71.53.75.03.84.05.47.62.26.36.34.94.10.91.84.14.82.33.94.73.90.70.84.22.70.34.35.95.60.9

None

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value445.020482513265441241955391029402929416729404540315.8142332152030304.64.52921143141355.8
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.51.03.78.54.62.54.89.37.44.83.910.27.72.15.78.06.36.58.312.36.510.210.29.27.11.53.55.77.93.85.07.57.81.11.06.64.43.67.39.48.91.7

None

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value111.24.5127.31.06.3138.810-147.021153.110151111142519151719132.47.16.4125.94.411151.80.8108.50.91315133.2
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.20.20.82.11.30.21.12.31.62.0-28.54.03.00.72.03.02.52.62.94.74.33.93.94.33.00.61.71.53.11.51.12.83.90.40.22.41.70.23.03.63.30.9

None

us-gaap:IncomeTaxesPaidNet

us-gaap:IncomeTaxesPaidNet


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-20.7-0.31.50.5-20.8-5.40.60.44.00.22.70.2-0.70.4-0.6105.5-0.15.87.2224.28.19.413-0.9-12.30.01442-15.11.010.029-14.00.0-86.061-21.00.0
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-3.9-0.10.30.1-3.7-1.00.10.10.70.00.50.0-0.10.1-0.12.21.2-0.01.21.35.11.11.82.13.1-0.2-3.00.03.610.5-3.80.22.26.6-2.90.0-19.713.9-5.30.0

None

us-gaap:ProfitLoss us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:ProfitLoss

matx:SsaTerminalsLlc


None
Period End2020-06-302019-06-30
Value124.2
Percentage of ProfitLoss100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.30.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax matx:SsaTerminalsLlc0.00.0

None

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

matx:AccumulatedOther


None
Period End2020-06-302020-03-31
Value300000.0-500000.0
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.1-0.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax matx:AccumulatedOther0.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


None
Period End2020-06-302020-03-312016-09-302016-03-312015-09-302015-06-302015-03-31
Value300000.0-500000.0600000.0-100000.0800000.0600000.0100000.0
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.1-0.10.1-0.00.10.10.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.0

None

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value323.8153618122041321416634247.01925181826419.9252721183.47.317209.115197.83.81.68.7185.220252817
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.30.72.96.33.32.33.67.15.92.832.36.34.71.53.75.03.84.05.47.62.26.36.34.94.10.91.84.14.82.33.94.82.00.90.32.03.81.34.65.97.35.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value323.836181241321434247.07.317209.11519
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.30.76.33.32.37.15.92.86.34.71.51.84.14.82.33.94.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302011-12-312011-09-302011-06-302010-12-312010-09-302010-06-30
Value323.2143517121741311416433257.71626181929431125-3.52218-12.71019132731
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.30.62.76.23.22.33.17.15.72.831.96.24.91.63.35.24.04.35.97.92.56.5-0.85.04.3-2.82.44.03.06.28.0

None

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value323.8153618122041321416634247.01925181826419.9252721183.47.317209.1
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.30.72.96.33.32.33.67.15.92.832.36.34.71.53.75.03.84.05.47.62.26.36.34.94.10.91.84.14.82.3

None

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value323.8153618122041321416634247.01925181826419.9252721183.47.317209.1
Percentage of NetIncomeLossAvailableToCommonStockholdersDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.30.72.96.33.32.33.67.15.92.832.36.34.71.53.75.03.84.05.47.62.26.36.34.94.10.91.84.14.82.3

None

us-gaap:Assets

us-gaap:Assets


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-03-312009-12-31
Value27772835284527532657267624302421238122872247216720392034201520731688167416691736172614261401136013641344124812201168114911741158118925742544255925562516249524952380
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-03-312009-12-31
Value27772835284527532657267624302421238122872247216720392034201520731688167416691736172614261401136013641344124812201168114911741158118925742544255925562516249524952380
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-03-312009-12-312008-12-312007-12-31
Value8158008057977657637557436996826785184754664714594344394504313863853633663423353383152922842792712471127112311451133113511361136108510721130
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets29.428.228.329.028.828.531.130.729.429.830.223.923.322.923.422.225.726.327.024.822.427.026.027.025.125.027.125.925.024.723.823.520.843.844.144.744.345.145.545.545.60.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

matx:AccumulatedDefinedBenefitPostRetirementPlansAdjustmentAttributableToParent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value151516192021211718181517-4.0-4.3-4.4-3.4-3.6-3.8-4.7-6.4-6.5-6.8-7.2
Percentage of StockholdersEquity1.92.02.02.52.72.82.92.42.62.72.33.4-0.8-0.9-0.9-0.7-0.8-0.9-1.0-1.5-1.7-1.8-2.0
Percentage of Assets0.50.60.60.70.80.80.90.70.80.80.70.8-0.2-0.2-0.2-0.2-0.2-0.2-0.3-0.4-0.4-0.5-0.5
Percentage of Assets matx:AccumulatedDefinedBenefitPostRetirementPlansAdjustmentAttributableToParent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

matx:AccumulatedNonQualifiedPlansAdjustmentAttributableToParent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value-0.3-0.4-0.4-0.2-0.1-0.1-0.1-0.5-0.4-0.4-0.3-0.4-0.3-0.4-0.4-0.8-0.7-0.8-0.9-1.0-1.0-0.7-0.7
Percentage of StockholdersEquity-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.1-0.1-0.1-0.0-0.1-0.1-0.1-0.1-0.2-0.2-0.2-0.2-0.2-0.3-0.2-0.2
Percentage of Assets-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.1-0.1-0.1-0.0-0.0
Percentage of Assets matx:AccumulatedNonQualifiedPlansAdjustmentAttributableToParent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

matx:AccumulatedOther


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value-1.7-1.6-0.9-1.1-0.4-0.3-0.3-0.3-0.40.60.40.40.40.3-0.50.2-0.4-0.4-0.7-0.2
Percentage of StockholdersEquity-0.2-0.2-0.1-0.1-0.1-0.0-0.0-0.0-0.10.10.10.10.10.1-0.10.0-0.1-0.1-0.2-0.1
Percentage of Assets-0.1-0.1-0.0-0.0-0.0-0.0-0.0-0.0-0.00.00.00.00.00.0-0.00.0-0.0-0.0-0.0-0.0
Percentage of Assets matx:AccumulatedOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value-50.6-51.3-51.9-54.1-55.3-55.5-55.8-48.4-48.9-49.3-40.6-40.1-40.5-41.0-41.4-40.3-40.8-41.3-41.7-43.3-43.9-44.6-45.0
Percentage of StockholdersEquity-6.2-6.4-6.4-6.8-7.2-7.3-7.4-6.5-7.0-7.2-6.0-7.7-8.5-8.8-8.8-8.8-9.4-9.4-9.3-10.0-11.3-11.6-12.4
Percentage of Assets-1.8-1.8-1.8-2.0-2.1-2.1-2.3-2.0-2.1-2.2-1.8-1.9-2.0-2.0-2.1-1.9-2.4-2.5-2.5-2.5-2.5-3.1-3.2
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-312010-12-312009-12-312008-12-312007-12-31
Value-37.4-37.5-36.9-35.7-35.2-34.7-34.5-31.5-31.6-30.7-24.9-22.4-44.4-45.4-46.1-43.6-44.8-45.6-46.9-49.5-51.1-52.4-53.3-23.5-43.9-44.9-44.2-45.5-42.9-43.7-92.0-82.0-81.0-96.0-4.0
Percentage of StockholdersEquity-4.6-4.7-4.6-4.5-4.6-4.5-4.6-4.2-4.5-4.5-3.7-4.3-9.3-9.7-9.8-9.5-10.3-10.4-10.4-11.5-13.2-13.6-14.7-6.9-13.9-15.4-15.6-16.3-15.8-17.7-8.2-7.2-7.5-9.0-0.4
Percentage of Assets-1.3-1.3-1.3-1.3-1.3-1.3-1.4-1.3-1.3-1.3-1.1-1.0-2.2-2.2-2.3-2.1-2.7-2.7-2.8-2.9-3.0-3.7-3.8-1.9-3.6-3.8-3.8-3.9-3.7-3.7-3.6-3.3-3.40.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-312010-12-312009-12-312008-12-312007-12-31
Value306304306303300297297293291288289285287285289287274261260255252252251246239223210204200
Percentage of StockholdersEquity37.638.138.038.039.339.039.439.541.642.242.755.160.461.261.563.975.677.482.487.389.090.392.599.821.319.619.419.017.7
Percentage of Assets11.010.710.811.011.311.112.312.112.212.612.913.214.114.014.417.219.621.021.321.822.021.521.720.89.48.98.80.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-312010-12-312009-12-312008-12-312007-12-31
Value3232323232323232323231313232323232323232323131313434333334
Percentage of StockholdersEquity4.04.04.04.04.24.24.24.34.64.74.76.16.86.96.87.28.99.510.210.911.311.411.712.93.03.03.03.13.0
Percentage of Assets1.21.11.11.21.21.21.31.31.31.41.41.51.61.61.62.02.32.62.62.72.82.72.82.71.31.41.40.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-312010-12-312009-12-312008-12-312007-12-31
Value51350050449846746746044940739338122320119419517710967675043403112953972934942911
Percentage of StockholdersEquity63.062.662.662.461.161.360.960.458.357.656.343.142.341.841.539.330.220.021.317.115.314.611.55.084.985.686.187.980.6
Percentage of Assets18.517.717.718.117.617.518.918.617.117.217.010.39.99.69.710.67.85.45.54.33.83.52.71.037.539.039.20.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-03-312009-12-31
Value273308289299289306318301283268266303281287274310253258277348322555519464478457348312253215234210236289275286298283264264307
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.910.910.210.910.911.513.112.411.911.711.814.013.814.113.615.015.015.516.620.118.738.937.134.135.034.028.025.621.718.719.918.219.911.210.811.211.711.210.610.612.9

None

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-03-312009-12-312008-12-312007-12-31
Value19192123241519121213192415191316192025251532529323022322911481391119113519221715171414161917
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.70.70.70.90.90.60.80.50.50.60.91.10.81.00.70.81.11.21.51.50.922.820.917.016.417.19.26.73.31.01.71.03.00.70.90.70.60.70.60.60.70.00.0

None

us-gaap:ReceivablesNetCurrent

us-gaap:ReceivablesNetCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-03-312009-12-31
Value215218205223213217223240221209194213198197189225206210214239223201197192196177182171179167174166170168173177189176165165172
Percentage of ReceivablesNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.77.77.28.18.08.19.29.99.39.18.79.99.79.79.410.912.212.612.813.813.014.114.114.114.413.214.614.015.414.614.914.414.36.56.86.97.47.06.66.67.2

us-gaap:ReceivablesNetCurrent us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

us-gaap:TradeAccountsReceivable


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-31
Value1.71.71.71.71.71.71.077124135134175175174174176150
Percentage of ReceivablesNetCurrent0.80.80.80.80.80.80.432.156.264.969.382.288.388.392.282.476.3
Percentage of Assets0.10.10.10.10.10.10.03.25.25.96.08.18.68.68.710.610.8
Percentage of Assets us-gaap:TradeAccountsReceivable0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PrepaidExpenseAndOtherAssetsCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value3870625252737548494651646870706828283841411920324840434824252826243332293833
Percentage of PrepaidExpenseAndOtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.42.52.21.92.02.73.12.02.12.02.33.03.33.43.53.31.71.72.32.42.41.41.52.43.63.03.44.02.12.22.42.32.11.31.31.11.51.3

None

us-gaap:AssetsNoncurrent

us-gaap:AssetsNoncurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value250425272555245423672370211221202098201919811864175717461741
Percentage of AssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets90.189.189.889.189.188.586.987.688.188.388.286.086.285.986.4

None

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-03-31
Value2756284328362706260326532615264126172508244423562230217321511988179817941783178217821770177917712962296229472922290529012901
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets99.2100.399.798.398.099.1107.6109.1109.9109.6108.8108.7109.4106.8106.8119.1128.3143.8146.1152.5155.1150.8153.6148.9115.1116.4115.2114.3115.5116.3116.3

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

matx:TerminalFacilitiesAndOtherProperty


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value1141141148766666665656564585757434239383837
Percentage of PropertyPlantAndEquipmentGross4.24.04.03.22.52.52.52.52.52.62.72.52.62.62.02.12.22.22.21.3
Percentage of Assets4.14.04.03.22.52.52.72.72.82.92.92.72.82.82.12.52.83.13.31.5
Percentage of Assets matx:TerminalFacilitiesAndOtherProperty0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

matx:VesselConstructionInProgress


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value19018548838230951248759954343437629617012512430
Percentage of PropertyPlantAndEquipmentGross6.96.517.214.111.919.318.622.720.817.315.412.67.75.85.81.5
Percentage of Assets6.96.517.213.911.719.120.024.722.819.016.813.78.46.26.21.8
Percentage of Assets matx:VesselConstructionInProgress0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

matx:Vessels


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value18981966165316471629149014891414144214401433143014231420141613841263126012491225
Percentage of PropertyPlantAndEquipmentGross68.969.258.360.962.656.256.953.655.157.458.760.763.865.465.869.670.370.270.541.4
Percentage of Assets68.369.358.159.861.355.761.358.460.663.063.866.069.869.870.382.990.2101.0106.448.2
Percentage of Assets matx:Vessels0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ConstructionInProgress


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value2748355381705949352926263432316628251415
Percentage of PropertyPlantAndEquipmentGross1.01.71.22.03.12.62.31.91.41.21.11.11.51.51.43.31.61.40.80.5
Percentage of Assets1.01.71.22.03.12.62.42.01.51.31.21.21.71.61.54.02.02.01.30.6
Percentage of Assets us-gaap:ConstructionInProgress0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Containers


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value525528544534516514513512530538543543544537536496466470468481
Percentage of PropertyPlantAndEquipmentGross19.118.619.219.819.819.419.619.420.321.522.223.124.424.725.024.926.026.226.516.2
Percentage of Assets18.918.619.119.419.419.221.121.222.323.524.225.126.726.426.629.733.337.739.918.9
Percentage of Assets us-gaap:Containers0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-03-31
Value1177125312381221120412671248129413101293127812571241122212021183116511471128115311071059104610381023100810039881348132813081288127212501250
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets42.444.243.544.345.347.351.453.555.056.556.958.060.960.159.757.169.068.667.666.479.084.985.888.889.185.986.683.152.452.251.150.450.650.150.1

None

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-03-312009-12-31
Value15781589159814851398138613661347130712151165109998995094990887385786083983967869170672172273573674475976277678316141634163916341633165116511536
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets56.856.156.253.952.651.856.255.654.953.151.950.748.546.747.143.851.751.251.548.448.647.649.351.952.953.858.960.363.766.064.967.065.862.764.264.063.964.966.266.264.5

None

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-03-312009-12-31
Value777476838691877994969387878782757269666868676463605757565959595958353347349341332329329242
Percentage of InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.82.62.73.03.33.43.63.34.04.24.14.14.34.34.13.74.34.14.03.94.04.84.64.64.44.34.64.65.05.25.15.14.913.713.613.613.313.213.213.210.2

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

matx:SsaTerminalsLlc


None
Period End2020-06-302020-03-312019-12-312019-09-302018-12-31
Value7774768387
Percentage of InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures100.0100.0100.0100.0100.0
Percentage of Assets2.82.62.73.03.6
Percentage of Assets matx:SsaTerminalsLlc0.00.00.00.00.0

None

us-gaap:Goodwill

us-gaap:Goodwill


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value32732732732732732732732332332332332332332332332424524124124824727272727272727
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.811.611.511.912.312.213.513.413.614.114.414.915.915.916.115.614.514.414.514.314.31.92.02.22.31.11.11.1

us-gaap:Goodwill us-gaap:StatementBusinessSegments

matx:LogisticsServicesSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1051051051051051051051051051051051051051051051052626262626262627272727
Percentage of Goodwill32.132.132.132.132.132.132.132.532.532.532.532.532.532.532.532.610.911.011.010.710.897.197.198.5100.0100.0100.0
Percentage of Assets3.83.73.73.84.03.94.34.34.44.64.74.95.25.25.25.11.61.61.61.51.51.91.92.22.31.11.1
Percentage of Assets matx:LogisticsServicesSegment0.00.00.00.00.00.00.00.00.00.033.90.00.00.035.90.00.00.038.70.00.00.030.333.935.035.336.6

matx:OceanTransportationSegment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312012-12-31
Value2222222222222222222222182182182182182182182182182182152152212150.80.80.40.4
Percentage of Goodwill67.967.967.967.967.967.967.967.567.567.567.567.567.567.567.567.489.189.089.089.387.02.92.91.51.5
Percentage of Assets8.07.87.88.18.48.39.29.09.29.69.710.110.710.710.810.512.912.812.912.812.50.10.10.00.0
Percentage of Assets matx:OceanTransportationSegment0.00.00.00.00.00.00.00.00.00.011.30.00.00.012.70.00.00.013.40.00.00.00.10.00.0

None

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value197200202205208211214216219222225228230233236139
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.17.17.17.57.87.98.89.09.29.710.010.511.311.511.78.3

None

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:CustomerLists


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312014-12-312013-12-312012-12-31
Value1701721751781811831861891921951972002032062092.53.63.5
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.16.16.26.56.86.97.77.88.18.58.89.310.010.110.40.20.30.3
Percentage of Assets us-gaap:CustomerLists0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312019-01-01
Value241253256246238243251
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.78.99.08.99.09.10.0

None

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-03-312009-12-31
Value282937494950497579808430303029282929267978686996747575115111115118112111164144150154141126126204
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.01.01.31.81.91.92.03.13.33.53.81.41.51.51.41.41.71.81.64.64.64.84.97.15.45.66.09.49.610.010.19.79.36.45.75.96.05.65.15.18.6

None

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-03-312009-12-31
Value449470436437425411370325315275286284276261279290289261297298306223223204221199200189206185193193207276278285284383353353297
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets16.216.615.315.916.015.415.313.513.212.012.713.113.512.813.914.017.215.617.817.217.815.715.915.016.214.816.115.517.616.216.516.717.510.710.911.111.115.214.114.112.5

None

us-gaap:LongTermDebtCurrent

us-gaap:LongTermDebtCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-31
Value5053484853454242363630293131312621212222242121171712121617
Percentage of LongTermDebtCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.81.91.71.82.01.71.71.71.51.61.41.31.51.61.61.31.31.31.31.31.41.51.51.31.30.91.01.40.7

None

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value247275235246
Percentage of AccountsPayableAndAccruedLiabilitiesCurrent100.0100.0100.0100.0
Percentage of Assets8.99.78.310.2

None

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


None
Period End2020-06-302020-03-312019-12-312019-03-31
Value63656654
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0
Percentage of Assets2.32.32.32.0

None

us-gaap:LiabilitiesNoncurrent

us-gaap:LiabilitiesNoncurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-03-312009-12-31
Value151215641603151814661502130413511366132912831363128713071264132396497392110071032817814789800809709715670679701692734117111431129113999810061006998
Percentage of LiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets54.555.256.355.155.256.153.755.857.458.157.162.963.164.262.863.957.158.155.258.059.857.358.158.058.760.256.858.657.359.159.759.861.745.544.944.144.639.740.340.341.9

None

us-gaap:LongTermDebt

us-gaap:LongTermDebt


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value890924958883844868856908932903857839753780738812462481429481516371373377379383286289292301319328372541559570522
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets32.032.633.732.131.832.435.237.539.239.538.138.737.038.436.739.227.428.725.727.729.926.026.727.727.828.522.923.825.026.227.228.431.321.022.022.320.9

us-gaap:LongTermDebt us-gaap:CreditFacility

us-gaap:RevolvingCreditFacility


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-302015-06-30
Value1783573792902352552352732952542051758599551954454118152
Percentage of LongTermDebt20.038.639.632.827.829.427.430.131.628.123.920.911.312.77.424.09.511.224.529.5
Percentage of Assets6.412.613.310.58.89.59.711.312.411.19.18.14.24.92.79.42.63.26.88.8
Percentage of Assets us-gaap:RevolvingCreditFacility0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:LongTermDebt us-gaap:LongtermDebtType

matx:SecuredBondsPayable1.22PercentThrough2043


None
Period End2020-06-30
Value185
Percentage of LongTermDebt20.9
Percentage of Assets6.7
Percentage of Assets matx:SecuredBondsPayable1.22PercentThrough20430.0

matx:SecuredBondsPayable1.35PercentThrough2044


None
Period End2020-06-30
Value139
Percentage of LongTermDebt15.7
Percentage of Assets5.0
Percentage of Assets matx:SecuredBondsPayable1.35PercentThrough20440.0

matx:SecuredBondsPayable5.27PercentThrough2029


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-31
Value2020222223232424252526262727282829293030313133333434353739
Percentage of LongTermDebt2.32.32.32.52.72.72.82.72.72.83.13.13.63.53.93.56.46.27.26.46.28.68.88.79.08.912.311.77.1
Percentage of Assets0.80.70.80.80.90.91.01.01.11.11.21.21.31.41.41.41.81.81.81.81.82.22.42.42.52.52.83.21.6
Percentage of Assets matx:SecuredBondsPayable5.27PercentThrough20290.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

matx:SecuredBondsPayable5.34PercentThrough2028


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-31
Value1818191920202222232324242525262627272828292930303131333537
Percentage of LongTermDebt2.12.02.12.22.52.42.62.42.52.62.82.93.43.23.63.25.95.76.75.95.78.08.28.28.48.311.511.06.7
Percentage of Assets0.70.70.70.70.80.80.90.91.01.01.11.11.21.21.31.31.61.61.71.61.72.12.22.32.32.42.63.01.5
Percentage of Assets matx:SecuredBondsPayable5.34PercentThrough20280.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

matx:TermLoansPayable3.14PercentThrough2031


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value178178188188194194200200200200200200200200200200
Percentage of LongTermDebt20.119.319.621.323.022.323.422.021.422.123.323.826.525.627.124.6
Percentage of Assets6.46.36.66.87.37.28.28.38.48.78.99.29.89.89.99.6
Percentage of Assets matx:TermLoansPayable3.14PercentThrough20310.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

matx:TermLoansPayable3.66PercentThrough2023


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value27313136414141454550505454595963636868727277777777777777
Percentage of LongTermDebt3.13.43.34.14.94.74.85.04.95.55.86.57.37.68.07.913.814.215.915.114.120.920.720.520.420.227.124.3
Percentage of Assets1.01.11.11.31.51.51.71.91.92.22.22.52.72.92.93.13.84.14.14.24.25.45.55.75.75.86.26.6
Percentage of Assets matx:TermLoansPayable3.66PercentThrough20230.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

matx:TermLoansPayable3.92PercentThrough2045


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value696971717171737373737375757575757575
Percentage of LongTermDebt7.57.38.18.58.28.38.17.88.18.58.79.99.610.29.216.215.617.4
Percentage of Assets2.52.42.62.72.72.93.03.13.23.33.43.73.73.73.64.44.54.5
Percentage of Assets matx:TermLoansPayable3.92PercentThrough20450.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

matx:TermLoansPayable4.16PercentThrough2027


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value36393941444444474749495252555555555555555555555555555555
Percentage of LongTermDebt4.14.24.14.75.35.15.25.25.15.55.86.27.07.07.46.811.911.412.811.410.614.814.714.614.514.319.217.2
Percentage of Assets1.31.41.41.51.71.71.81.92.02.22.22.42.62.72.72.73.33.33.33.23.23.93.94.04.04.14.44.7
Percentage of Assets matx:TermLoansPayable4.16PercentThrough20270.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

matx:TermLoansPayable4.31PercentThrough2032


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value29303031323232333335353636373737373737373737373737373737
Percentage of LongTermDebt3.33.33.23.63.93.83.83.73.63.94.14.34.84.85.14.68.17.88.77.87.310.110.09.99.99.813.111.8
Percentage of Assets1.01.11.11.11.21.21.31.41.41.51.61.71.81.81.91.82.22.22.22.22.22.62.72.82.72.83.03.2
Percentage of Assets matx:TermLoansPayable4.31PercentThrough20320.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

matx:TermLoansPayable5.79PercentThrough2020


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-31
Value3.53.57.07.0101014141717212124242828313135353838424245455259
Percentage of LongTermDebt0.40.40.80.81.21.21.51.51.92.02.52.83.13.33.46.16.57.37.36.810.410.311.111.111.915.916.510.6
Percentage of Assets0.10.10.30.30.40.40.60.60.80.81.01.01.21.21.41.71.91.92.02.02.72.73.13.13.43.64.52.3
Percentage of Assets matx:TermLoansPayable5.79PercentThrough20200.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:LongTermDebtNoncurrent

us-gaap:LongTermDebtNoncurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-03-312009-12-31
Value823871910834791822814866896867826810722748707786441459407459492349352360362371273277280283302307344541507503510374386386406
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets29.630.732.030.329.830.733.535.837.637.936.837.435.436.835.137.926.127.424.426.428.524.525.126.526.627.621.922.724.024.725.826.529.021.019.919.720.014.915.515.517.1

None

us-gaap:LongTermDebtAndCapitalLeaseObligations

us-gaap:LongTermDebtAndCapitalLeaseObligations


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-31
Value839871910834791822814866896867826810722748707786441459407459492349352360362371273302180
Percentage of LongTermDebtAndCapitalLeaseObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets30.230.732.030.329.830.733.535.837.637.936.837.435.436.835.137.926.127.424.426.428.524.525.126.526.627.621.925.87.1

None

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxLiabilitiesNet


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value348340337312
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0
Percentage of Assets12.612.011.912.9

None

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-03-312009-12-31
Value153155157157163165177174170171171423941403837383739383535363536353538383833335150575555545448
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.55.55.55.76.16.27.37.27.27.57.62.01.92.02.01.92.22.32.32.32.22.52.52.72.62.72.82.93.33.33.32.92.82.02.02.22.22.22.22.22.0

None

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value186197198190189196
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0
Percentage of Assets6.77.07.06.97.17.3

None

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-03-312009-12-312008-12-312007-12-31
Value8158008057977657637557436996826785184754664714594344394504313863853633663423353383152922842792712471127112311451133113511361136108510721130
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets29.428.228.329.028.828.531.130.729.429.830.223.923.322.923.422.225.726.327.024.822.427.026.027.025.125.027.125.925.024.723.823.520.843.844.144.744.345.145.545.545.60.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

matx:AccumulatedDefinedBenefitPostRetirementPlansAdjustmentAttributableToParent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value151516192021211718181517-4.0-4.3-4.4-3.4-3.6-3.8-4.7-6.4-6.5-6.8-7.2
Percentage of StockholdersEquity1.92.02.02.52.72.82.92.42.62.72.33.4-0.8-0.9-0.9-0.7-0.8-0.9-1.0-1.5-1.7-1.8-2.0
Percentage of Assets0.50.60.60.70.80.80.90.70.80.80.70.8-0.2-0.2-0.2-0.2-0.2-0.2-0.3-0.4-0.4-0.5-0.5
Percentage of Assets matx:AccumulatedDefinedBenefitPostRetirementPlansAdjustmentAttributableToParent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

matx:AccumulatedNonQualifiedPlansAdjustmentAttributableToParent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value-0.3-0.4-0.4-0.2-0.1-0.1-0.1-0.5-0.4-0.4-0.3-0.4-0.3-0.4-0.4-0.8-0.7-0.8-0.9-1.0-1.0-0.7-0.7
Percentage of StockholdersEquity-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.1-0.1-0.1-0.0-0.1-0.1-0.1-0.1-0.2-0.2-0.2-0.2-0.2-0.3-0.2-0.2
Percentage of Assets-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.1-0.1-0.1-0.0-0.0
Percentage of Assets matx:AccumulatedNonQualifiedPlansAdjustmentAttributableToParent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

matx:AccumulatedOther


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value-1.7-1.6-0.9-1.1-0.4-0.3-0.3-0.3-0.40.60.40.40.40.3-0.50.2-0.4-0.4-0.7-0.2
Percentage of StockholdersEquity-0.2-0.2-0.1-0.1-0.1-0.0-0.0-0.0-0.10.10.10.10.10.1-0.10.0-0.1-0.1-0.2-0.1
Percentage of Assets-0.1-0.1-0.0-0.0-0.0-0.0-0.0-0.0-0.00.00.00.00.00.0-0.00.0-0.0-0.0-0.0-0.0
Percentage of Assets matx:AccumulatedOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value-50.6-51.3-51.9-54.1-55.3-55.5-55.8-48.4-48.9-49.3-40.6-40.1-40.5-41.0-41.4-40.3-40.8-41.3-41.7-43.3-43.9-44.6-45.0
Percentage of StockholdersEquity-6.2-6.4-6.4-6.8-7.2-7.3-7.4-6.5-7.0-7.2-6.0-7.7-8.5-8.8-8.8-8.8-9.4-9.4-9.3-10.0-11.3-11.6-12.4
Percentage of Assets-1.8-1.8-1.8-2.0-2.1-2.1-2.3-2.0-2.1-2.2-1.8-1.9-2.0-2.0-2.1-1.9-2.4-2.5-2.5-2.5-2.5-3.1-3.2
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-312010-12-312009-12-312008-12-312007-12-31
Value-37.4-37.5-36.9-35.7-35.2-34.7-34.5-31.5-31.6-30.7-24.9-22.4-44.4-45.4-46.1-43.6-44.8-45.6-46.9-49.5-51.1-52.4-53.3-23.5-43.9-44.9-44.2-45.5-42.9-43.7-92.0-82.0-81.0-96.0-4.0
Percentage of StockholdersEquity-4.6-4.7-4.6-4.5-4.6-4.5-4.6-4.2-4.5-4.5-3.7-4.3-9.3-9.7-9.8-9.5-10.3-10.4-10.4-11.5-13.2-13.6-14.7-6.9-13.9-15.4-15.6-16.3-15.8-17.7-8.2-7.2-7.5-9.0-0.4
Percentage of Assets-1.3-1.3-1.3-1.3-1.3-1.3-1.4-1.3-1.3-1.3-1.1-1.0-2.2-2.2-2.3-2.1-2.7-2.7-2.8-2.9-3.0-3.7-3.8-1.9-3.6-3.8-3.8-3.9-3.7-3.7-3.6-3.3-3.40.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-312010-12-312009-12-312008-12-312007-12-31
Value306304306303300297297293291288289285287285289287274261260255252252251246239223210204200
Percentage of StockholdersEquity37.638.138.038.039.339.039.439.541.642.242.755.160.461.261.563.975.677.482.487.389.090.392.599.821.319.619.419.017.7
Percentage of Assets11.010.710.811.011.311.112.312.112.212.612.913.214.114.014.417.219.621.021.321.822.021.521.720.89.48.98.80.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-312010-12-312009-12-312008-12-312007-12-31
Value3232323232323232323231313232323232323232323131313434333334
Percentage of StockholdersEquity4.04.04.04.04.24.24.24.34.64.74.76.16.86.96.87.28.99.510.210.911.311.411.712.93.03.03.03.13.0
Percentage of Assets1.21.11.11.21.21.21.31.31.31.41.41.51.61.61.62.02.32.62.62.72.82.72.82.71.31.41.40.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-312010-12-312009-12-312008-12-312007-12-31
Value51350050449846746746044940739338122320119419517710967675043403112953972934942911
Percentage of StockholdersEquity63.062.662.662.461.161.360.960.458.357.656.343.142.341.841.539.330.220.021.317.115.314.611.55.084.985.686.187.980.6
Percentage of Assets18.517.717.718.117.617.518.918.617.117.217.010.39.99.69.710.67.85.45.54.33.83.52.71.037.539.039.20.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:CommonStockValue

us-gaap:CommonStockValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-03-312009-12-31
Value3232323232323232323231313232323232323232323232323232323232323131313434343434343433
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.21.11.11.21.21.21.31.31.31.41.41.51.61.61.61.51.91.92.01.91.92.32.32.42.42.42.62.62.72.82.72.82.71.31.31.31.31.41.41.41.4

None

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-03-312009-12-31
Value306304306303300297297293291288289285287285289286283282287284283278274267264262261260255252252251246252239236234228223223210
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.010.710.811.011.311.112.312.112.212.612.913.214.114.014.413.816.816.817.216.416.419.519.619.719.419.521.021.321.822.021.521.720.89.89.49.29.29.18.98.98.8

None

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-03-312009-12-31
Value51350050449846746746044940739338122320019419518416317017716312112710989676467675043403112942953964956964972972934
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets18.517.717.718.117.617.518.918.617.117.217.010.39.89.59.78.99.710.210.69.47.18.97.86.65.04.85.45.54.33.83.52.71.036.637.537.737.438.339.039.039.2

None

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-03-312009-12-31
Value-37400000.0-37500000.0-36900000.0-35700000.0-35200000.0-34700000.0-34500000.0-31500000.0-31600000.0-30700000.0-24900000.0-22400000.0-44400000.0-45400000.0-46100000.0-43600000.0-44800000.0-45600000.0-46900000.0-49500000.0-51100000.0-52400000.0-53300000.0-22000000.0-22700000.0-23200000.0-23500000.0-43900000.0-44900000.0-44200000.0-45500000.0-42900000.0-43700000.0-90000000.0-92000000.0-78000000.0-80000000.0-80000000.0-82000000.0-82000000.0-81000000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-1.3-1.3-1.3-1.3-1.3-1.3-1.4-1.3-1.3-1.3-1.1-1.0-2.2-2.2-2.3-2.1-2.7-2.7-2.8-2.9-3.0-3.7-3.8-1.6-1.7-1.7-1.9-3.6-3.8-3.8-3.9-3.7-3.7-3.5-3.6-3.0-3.1-3.2-3.3-3.3-3.4

None

us-gaap:StockIssuedDuringPeriodValueNewIssues

us-gaap:StockIssuedDuringPeriodValueNewIssues


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-06-302017-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-1.0-4.50.1-0.1-3.1-0.20.3-4.2-0.1-6.70.12.20.4-1.00.13.2
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302020-03-312019-06-302019-03-312018-09-302018-06-302018-03-312017-06-302017-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-1.0-4.6-0.1-3.2-0.20.3-4.3-0.1-6.90.12.10.4-1.10.13.1
Percentage of StockIssuedDuringPeriodValueNewIssues100.0102.2100.0103.2100.0100.0102.4100.0103.0100.095.5100.0110.0100.096.9
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


None
Period End2020-03-312019-09-302019-03-312018-03-312017-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value0.10.10.10.10.20.00.10.00.10.00.1
Percentage of StockIssuedDuringPeriodValueNewIssues-2.2100.0-3.2-2.4-3.00.04.50.0-10.00.03.1
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value3.03.12.53.03.22.72.82.72.92.32.61.61.51.51.31.11.1
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value3.03.12.53.03.22.72.82.72.92.42.61.61.51.51.31.11.1
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0104.3100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value7268687274331028389297783594.0708.740-20.0442528-11.06942345.0
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.713.312.712.613.46.318.114.216.05.815.115.411.60.813.51.710.3-4.99.65.75.7-2.715.89.68.61.5

None

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-14400000.0-20700000.0-138600000.0-101500000.0-33600000.0-33200000.0-28900000.0-51000000.0-110600000.0-69800000.0-92300000.0-132200000.0-28200000.0-24200000.07300000.0-263900000.028700000.0-19000000.0-15000000.0-24000000.0-22000000.0-10000000.0-73000000.0-26000000.0-29000000.0-22000000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-2.7-4.0-25.6-17.7-6.0-6.2-5.1-8.7-19.9-13.6-17.9-24.3-5.5-5.11.4-52.77.3-4.7-3.3-5.5-4.5-2.5-16.7-5.9-7.3-6.4

None

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-60.8-50.66628-32.8-0.4-60.7-33.620339.558-35.425-80.1252-43.236-24.01.0-8.0244.0-38.01121
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-11.6-9.812.35.1-5.9-0.1-10.7-5.73.76.61.810.7-6.95.4-15.450.4-11.08.9-5.20.2-1.65.90.9-8.72.86.1

None

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value7268687274331028389297783594.0708.740-20.0442528-11.06942345.0
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.713.312.712.613.46.318.114.216.05.815.115.411.60.813.51.710.3-4.99.65.75.7-2.715.89.68.61.5

None

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value323.8153618122041321416634247.01925181826419.9252721183.47.317209.115197.83.81.68.7185.220252817
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.30.72.96.33.32.33.67.15.92.832.36.34.71.53.75.03.84.05.47.62.26.36.34.94.10.91.84.14.82.33.94.82.00.90.32.03.81.34.65.97.35.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value323.836181241321434247.07.317209.11519
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.30.76.33.32.37.15.92.86.34.71.51.84.14.82.33.94.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:ProfitLoss us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:ProfitLoss

matx:SsaTerminalsLlc


None
Period End2020-06-302019-06-30
Value124.2
Percentage of ProfitLoss100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.30.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax matx:SsaTerminalsLlc0.00.0

None

us-gaap:DepreciationDepletionAndAmortization

us-gaap:DepreciationDepletionAndAmortization


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value282727252423232324232624252425242323242318161717171717171717161810272828262728272626
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsPayable


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-24.938-2.217-9.2-20.4466.429-11.05.9233.9-13.3-10.2-0.521-9.9-7.3-0.2-9.37.47.7-1.22.34.7-2.6-12.519-1.91.69.5-13.6-5.4
Percentage of IncreaseDecreaseInAccountsPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value3.03.12.62.53.03.23.92.72.82.73.32.92.32.62.03.03.42.82.62.04.82.83.11.91.91.81.61.51.51.31.11.11.00.8
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-14.4-20.7-138.6-101.5-33.6-33.2-28.9-51.0-110.6-69.8-92.3-132.2-28.2-24.27.3-263.928-19.0-15.0-24.0-22.0-10.0-73.0-26.0-29.0-22.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-2.7-4.0-25.6-17.7-6.0-6.2-5.1-8.7-19.9-13.6-17.9-24.3-5.5-5.11.4-52.77.3-4.7-3.3-5.5-4.5-2.5-16.7-5.9-7.3-6.4

None

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-60.8-50.66628-32.8-0.4-60.7-33.620339.558-35.425-80.1252-43.236-24.01.0-8.0244.0-38.01121
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-11.6-9.812.35.1-5.9-0.1-10.7-5.73.76.61.810.7-6.95.4-15.450.4-11.08.9-5.20.2-1.65.90.9-8.72.86.1

None

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsOfDividendsCommonStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value9.69.59.59.59.19.19.19.08.68.78.68.78.28.38.28.27.97.98.07.97.47.57.47.47.06.96.96.96.56.56.46.413131313141313131313
Percentage of PaymentsOfDividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:DebtInstrumentInterestRateStatedPercentage dei:LegalEntity, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentInterestRateStatedPercentage

matx:MatNav, matx:TitleXiNotes


None
Period End2020-06-222020-04-27
Value0.01350.0122
Percentage of DebtInstrumentInterestRateStatedPercentage100.0100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations matx:MatNav matx:TitleXiNotes0.00.0

us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:LongtermDebtType

matx:SecuredBondsPayable1.22PercentThrough2043


None
Period End2020-06-30
Value0.0122
Percentage of DebtInstrumentInterestRateStatedPercentage0.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations matx:SecuredBondsPayable1.22PercentThrough20430.0

matx:SecuredBondsPayable1.35PercentThrough2044


None
Period End2020-06-30
Value0.0135
Percentage of DebtInstrumentInterestRateStatedPercentage0.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations matx:SecuredBondsPayable1.35PercentThrough20440.0

None

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value22252832322424121213191325
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

matx:CapitalExpendituresAndDryDockingIncurredButNotYetPaid

matx:CapitalExpendituresAndDryDockingIncurredButNotYetPaid


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value1.13.5-1.36.1-1.85.53.7-0.40.10.7-0.30.4-1.32.4-8.57.72.82.17.43.21.91.01.1-1.60.81.3-0.90.30.72.04.1-1.6-1.93.6
Percentage of CapitalExpendituresAndDryDockingIncurredButNotYetPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

matx:DecreasedInRestrictedCash us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

matx:DecreasedInRestrictedCash

us-gaap:TradeAccountsReceivable


None
Period End2020-06-30
Value26
Percentage of DecreasedInRestrictedCash100.0

matx:EquityMethodInvestmentIncreaseDueToSubsidiaryAcquisition

matx:EquityMethodInvestmentIncreaseDueToSubsidiaryAcquisition


None
Period End2020-03-31
Value2200000.0
Percentage of EquityMethodInvestmentIncreaseDueToSubsidiaryAcquisition100.0

matx:EquityMethodInvestmentIncreaseDueToSubsidiaryAcquisition us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


None
Period End2020-03-31
Value2200000.0
Percentage of EquityMethodInvestmentIncreaseDueToSubsidiaryAcquisition100.0

matx:FuelSalesRevenue us-gaap:StatementBusinessSegments

matx:FuelSalesRevenue

matx:OceanTransportationSegment


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value2.12.63.32.62.03.53.12.1-0.72.82.02.5
Percentage of FuelSalesRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

matx:IncreaseDecreaseInDeferredDryDockingAmortization

matx:IncreaseDecreaseInDeferredDryDockingAmortization


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value5.76.160-8.7-9.1-8.1-9.9-9.2-9.1-9.2-10.5-10.1-14.1-11.5-11.1-10.6-9.1-8.1-6.3-5.7-5.6-5.5-5.1-5.4-5.3-5.3-4.9-5.9-5.8-5.4-6.0-6.2-5.5-5.6
Percentage of IncreaseDecreaseInDeferredDryDockingAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

matx:IncreaseDecreaseInDeferredDryDockingPayments

matx:IncreaseDecreaseInDeferredDryDockingPayments


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value5.02.68.0113.73.28.75.40.54.69.512171515151513111.77.25.11.60.74.57.33.44.64.81.212101011
Percentage of IncreaseDecreaseInDeferredDryDockingPayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

matx:IncreaseDecreaseInOperatingLeaseLiabilities

matx:IncreaseDecreaseInOperatingLeaseLiabilities


None
Period End2020-06-302020-03-312019-06-302019-03-31
Value-19100000.0-16900000.0-16600000.0-16700000.0
Percentage of IncreaseDecreaseInOperatingLeaseLiabilities100.0100.0100.0100.0

matx:IncreasedInRestrictedCash us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

matx:IncreasedInRestrictedCash

us-gaap:TradeAccountsReceivable


None
Period End2020-06-30
Value26
Percentage of IncreasedInRestrictedCash100.0

matx:NumberOfSaleLeasebackTransactions

matx:NumberOfSaleLeasebackTransactions


None
Period End2020-06-30
Value0
Percentage of NumberOfSaleLeasebackTransactions0.0

matx:NumberOfTerminalFacilitiesOnWhichInvesteeProvidesTerminalAndStevedoringServices dei:LegalEntity, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

matx:NumberOfTerminalFacilitiesOnWhichInvesteeProvidesTerminalAndStevedoringServices

matx:MatNav, matx:SsaTerminalsLlc


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-30
Value04.00004.00004.01.0
Percentage of NumberOfTerminalFacilitiesOnWhichInvesteeProvidesTerminalAndStevedoringServices0.0100.00.00.00.0100.00.00.00.0100.0100.0

matx:NumberOfTerminalFacilitiesOnWhichInvesteeProvidesTerminalAndStevedoringServices us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:StatementBusinessSegments

matx:SsaTerminalsLlc, matx:OceanTransportationSegment


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value08.0008.00007.001.006.0
Percentage of NumberOfTerminalFacilitiesOnWhichInvesteeProvidesTerminalAndStevedoringServices0.0200.00.00.0200.00.00.00.0175.00.0100.00.00.0

matx:OceanTransportationServicesRevenue us-gaap:StatementBusinessSegments

matx:OceanTransportationServicesRevenue

matx:OceanTransportationSegment


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value402391424406387431401374364414388365
Percentage of OceanTransportationServicesRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

matx:OperatingLeaseRightOfUseAssetsAmortization

matx:OperatingLeaseRightOfUseAssetsAmortization


None
Period End2020-06-302020-03-312019-06-302019-03-31
Value18171616
Percentage of OperatingLeaseRightOfUseAssetsAmortization100.0100.0100.0100.0

matx:PercentageOfOceanTransportationAndFuelSalesRevenuesDenominatedInForeignCurrency us-gaap:StatementBusinessSegments

matx:PercentageOfOceanTransportationAndFuelSalesRevenuesDenominatedInForeignCurrency

matx:OceanTransportationSegment


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value00.03000.03000.03000.03
Percentage of PercentageOfOceanTransportationAndFuelSalesRevenuesDenominatedInForeignCurrency0.0100.00.00.0100.00.00.0100.00.00.0100.0

matx:PercentageOfTransportationBrokerageAndFreightServicesRevenueDenominatedinforeigncurrency us-gaap:StatementBusinessSegments

matx:PercentageOfTransportationBrokerageAndFreightServicesRevenueDenominatedinforeigncurrency

matx:LogisticsServicesSegment


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value00.03000.03000.03000.03
Percentage of PercentageOfTransportationBrokerageAndFreightServicesRevenueDenominatedinforeigncurrency0.0100.00.00.0100.00.00.0100.00.00.0100.0

matx:ProceedsFromJointVenture

matx:ProceedsFromJointVenture


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.07.8105.25.34.20.024
Percentage of ProceedsFromJointVenture0.0100.0100.0100.0100.0100.00.0100.0

matx:ShipManagementServicesRevenue us-gaap:StatementBusinessSegments

matx:ShipManagementServicesRevenue

matx:OceanTransportationSegment


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1.51.41.51.41.31.71.81.74.81.71.71.7
Percentage of ShipManagementServicesRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

matx:SupplyChainManagementAndOtherServicesRevenue us-gaap:StatementBusinessSegments

matx:SupplyChainManagementAndOtherServicesRevenue

matx:LogisticsServicesSegment


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value3.22.72.92.52.83.43.33.0
Percentage of SupplyChainManagementAndOtherServicesRevenue100.0100.0100.0100.0100.0100.0100.0100.0

matx:TerminalAndOtherRelatedServicesRevenue us-gaap:StatementBusinessSegments

matx:TerminalAndOtherRelatedServicesRevenue

matx:OceanTransportationSegment


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value4.65.88.34.86.70.70.50.8210.60.80.8
Percentage of TerminalAndOtherRelatedServicesRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

matx:TransportationBrokerageAndFreightForwardingServicesRevenue us-gaap:StatementBusinessSegments

matx:TransportationBrokerageAndFreightForwardingServicesRevenue

matx:LogisticsServicesSegment


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value10110212713412613513611913511010692
Percentage of TransportationBrokerageAndFreightForwardingServicesRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

matx:WarehouseAndDistributionServicesRevenue us-gaap:StatementBusinessSegments

matx:WarehouseAndDistributionServicesRevenue

matx:LogisticsServicesSegment


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value8.28.24.65.35.38.97.87.4-4.87.87.37.2
Percentage of WarehouseAndDistributionServicesRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-3200000.0-2700000.0-3900000.0-400000.08400000.0-200000.012400000.0-700000.0-900000.0-6100000.0
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStockDividendsPerShareCashPaid

us-gaap:CommonStockDividendsPerShareCashPaid


None
Period End2020-06-042020-06-302020-03-312019-09-302019-06-302019-03-072019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.220.230.220.220.220.210.210.210.20.20.20.20.190.190.190.190.180.180.180.180.170.170.160.160.150.150.150.150.3150.3150.3150.3150.3150.3150.3150.3150.3150.315
Percentage of CommonStockDividendsPerShareCashPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1 us-gaap:Range, us-gaap:CreditFacility, us-gaap:VariableRate

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1

srt:Maximum, us-gaap:RevolvingCreditFacility, us-gaap:BaseRate


None
Period End2020-03-31
Value0.025
Percentage of DebtInstrumentBasisSpreadOnVariableRate1100.0

srt:Maximum, us-gaap:RevolvingCreditFacility, us-gaap:LondonInterbankOfferedRateLIBOR


None
Period End2020-03-31
Value0.035
Percentage of DebtInstrumentBasisSpreadOnVariableRate1140.0

srt:Minimum, us-gaap:RevolvingCreditFacility, us-gaap:BaseRate


None
Period End2020-03-31
Value0.0075
Percentage of DebtInstrumentBasisSpreadOnVariableRate130.0

srt:Minimum, us-gaap:RevolvingCreditFacility, us-gaap:LondonInterbankOfferedRateLIBOR


None
Period End2020-03-31
Value0.0175
Percentage of DebtInstrumentBasisSpreadOnVariableRate170.0

us-gaap:DecreaseInRestrictedCash

us-gaap:DecreaseInRestrictedCash


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value702841131393481455310552430.0790.011910.02.20.02.20.02.2
Percentage of DecreaseInRestrictedCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.0100.00.0100.00.0100.00.0100.0

us-gaap:DecreaseInRestrictedCash us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

us-gaap:TradeAccountsReceivable


None
Period End2020-03-312019-09-302019-06-302019-03-31
Value70411313
Percentage of DecreaseInRestrictedCash100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxesAndTaxCredits

us-gaap:DeferredIncomeTaxesAndTaxCredits


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value8.72.71.7126.13.82.8118.26.4-151.2118.12.9
Percentage of DeferredIncomeTaxesAndTaxCredits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-100000.0-200000.00500000.0-200000.0-200000.0-400000.0-300000.0-400000.0-400000.0-300000.0-300000.0-300000.0-300000.0-300000.0-300000.0
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-1400000.0-1500000.0-1200000.0-2200000.0-900000.0-900000.0-1200000.0-1000000.0-1300000.0-1100000.0-1300000.0-1300000.0-1300000.0-1200000.0-1400000.0-1500000.0
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses1400.0750.00.0-440.0450.0450.0300.0333.3325.0275.0433.3433.3433.3400.0466.7500.0

us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-900000.0-900000.0-1000000.0-900000.0-1000000.0-900000.0-1000000.0-1000000.0-900000.0-900000.0-1000000.0-2800000.0
Percentage of DefinedBenefitPlanAmortizationOfPriorServiceCostCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-600000.0-600000.0-600000.0-500000.0-600000.0-600000.0-600000.0-500000.0-600000.0-600000.0-600000.0-600000.0-500000.0-600000.0-600000.0-600000.0
Percentage of DefinedBenefitPlanAmortizationOfPriorServiceCostCredit66.766.760.055.660.066.760.050.066.766.760.021.40.00.00.00.0

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets

us-gaap:PensionPlansDefinedBenefit


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value3.33.22.92.73.23.13.43.33.43.43.43.33.43.43.43.3
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanInterestCost us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanInterestCost

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value0.20.20.20.10.30.30.20.30.30.20.3-0.60.70.70.70.6
Percentage of DefinedBenefitPlanInterestCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value1.91.92.32.42.32.32.22.12.12.22.42.52.42.42.42.5
Percentage of DefinedBenefitPlanInterestCost950.0950.01150.02400.0766.7766.71100.0700.0700.01100.0800.0-416.7342.9342.9342.9416.7

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-0.4-0.4-0.7-1.3-0.3-0.3-0.3-0.2-0.1-0.1-0.3-3.51.41.40.01.2
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:PensionPlansDefinedBenefit


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value0.70.81.22.70.50.60.50.40.50.40.61.10.70.60.71.1
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost-175.0-200.0-171.4-207.7-166.7-200.0-166.7-200.0-500.0-400.0-200.0-31.450.042.90.091.7

us-gaap:DefinedBenefitPlanServiceCost us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanServiceCost

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value200000.0100000.0100000.00200000.0100000.0100000.0200000.0100000.0200000.0100000.0-400000.0400000.0400000.0400000.0300000.0
Percentage of DefinedBenefitPlanServiceCost100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value1300000.01200000.01200000.01300000.01100000.01100000.01100000.01100000.01100000.01100000.01000000.01100000.0900000.01000000.0900000.01000000.0
Percentage of DefinedBenefitPlanServiceCost650.01200.01200.00.0550.01100.01100.0550.01100.0550.01000.0-275.0225.0250.0225.0333.3

us-gaap:DividendsCommonStockCash

us-gaap:DividendsCommonStockCash


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-06-302018-03-312017-06-302017-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value199.50.2189.1178.7178.36.90.0136.56.46.4
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0

us-gaap:DividendsCommonStockCash us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-06-302018-03-312017-06-302017-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value199.50.2189.1178.7178.36.90.0136.56.46.4
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0

us-gaap:EquityMethodInvestmentSummarizedFinancialInformationCostOfSales us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:EquityMethodInvestmentSummarizedFinancialInformationCostOfSales

matx:SsaTerminalsLlc


None
Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value265262265244259240219203194184
Percentage of EquityMethodInvestmentSummarizedFinancialInformationCostOfSales100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquityMethodInvestmentSummarizedFinancialInformationGrossProfitLoss us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:EquityMethodInvestmentSummarizedFinancialInformationGrossProfitLoss

matx:SsaTerminalsLlc


None
Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value13263.823292531232012
Percentage of EquityMethodInvestmentSummarizedFinancialInformationGrossProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss

matx:SsaTerminalsLlc


None
Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value13234.222272430231914
Percentage of EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquityMethodInvestmentSummarizedFinancialInformationRevenue us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:EquityMethodInvestmentSummarizedFinancialInformationRevenue

matx:SsaTerminalsLlc


None
Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value278288268268289266250227214196
Percentage of EquityMethodInvestmentSummarizedFinancialInformationRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromEquityMethodInvestments


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3.74.03.08.40.98.58.09.29.1108.97.56.94.96.63.63.02.63.44.55.23.41.23.12.10.21.0-2.4-0.80.20.10.71.6-1.6-2.5-1.1-0.42.0-1.54.4-0.2-0.7
Percentage of IncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeLossFromEquityMethodInvestments us-gaap:StatementBusinessSegments

matx:OceanTransportationSegment


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value3.74.08.40.98.59.2
Percentage of IncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsAndNotesReceivable

us-gaap:IncreaseDecreaseInAccountsAndNotesReceivable


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-3.612-18.011-5.0-5.8-17.0191214-19.2150.68.4-14.58.0-4.0-3.9-25.117-10.04.25.1-4.218-4.411-8.512-7.39.3-0.53.1-4.9
Percentage of IncreaseDecreaseInAccountsAndNotesReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherNoncurrentLiabilities

us-gaap:IncreaseDecreaseInOtherNoncurrentLiabilities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-1900000.0-1500000.0-1700000.0-6100000.0-2400000.0400000.0-6900000.0-500000.00-200000.0300000.0-1800000.0-3400000.0800000.0-39800000.0-2000000.04100000.0400000.0
Percentage of IncreaseDecreaseInOtherNoncurrentLiabilities100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-25.40.20.80.2-20.7-4.8-1.20.05.2-8.2-10.1-5.40.01.1-21.041-0.9-6.4-2.02.613-0.7-7.7-16.67.8-0.8-12.029-0.3-4.95.13.41.40.5
Percentage of IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseInRestrictedCash

us-gaap:IncreaseInRestrictedCash


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value702841131393481445310652120.00.01100.0120.0
Percentage of IncreaseInRestrictedCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.00.0100.00.0

us-gaap:IncreaseInRestrictedCash us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

us-gaap:TradeAccountsReceivable


None
Period End2020-03-312019-09-302019-06-302019-03-31
Value70411313
Percentage of IncreaseInRestrictedCash100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value200000.0300000.0100000.0400000.0400000.0300000.00400000.0300000.0300000.00300000.0200000.0400000.00400000.0300000.0400000.00500000.0500000.0500000.0100000.0400000.0200000.0400000.00500000.0300000.0400000.00300000.0500000.0400000.00400000.0500000.0300000.0100000.0200000.0200000.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestCostsCapitalized us-gaap:PropertyPlantAndEquipmentByType

us-gaap:InterestCostsCapitalized

matx:VesselConstructionInProgress


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1.77.44.13.5-6.621-7.55.24.5143.01.91.44.1
Percentage of InterestCostsCapitalized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

matx:Vessels


None
Period End2020-06-302020-03-312019-06-30
Value0.0169.9
Percentage of InterestCostsCapitalized0.0223.0-150.0

us-gaap:LeaseCost

us-gaap:LeaseCost


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-31
Value2320191919
Percentage of LeaseCost100.0100.0100.0100.0100.0

us-gaap:LineOfCreditFacilityCommitmentFeePercentage us-gaap:Range, us-gaap:CreditFacility

us-gaap:LineOfCreditFacilityCommitmentFeePercentage

srt:Maximum, matx:StandbyAndCommercialLettersOfCredit


None
Period End2020-03-31
Value0.035
Percentage of LineOfCreditFacilityCommitmentFeePercentage100.0

srt:Minimum, matx:StandbyAndCommercialLettersOfCredit


None
Period End2020-03-31
Value0.0175
Percentage of LineOfCreditFacilityCommitmentFeePercentage50.0

us-gaap:LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage us-gaap:Range, us-gaap:CreditFacility

us-gaap:LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage

srt:Maximum, us-gaap:RevolvingCreditFacility


None
Period End2020-03-31
Value0.0055
Percentage of LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage100.0

srt:Minimum, us-gaap:RevolvingCreditFacility


None
Period End2020-03-31
Value0.0025
Percentage of LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage45.5

us-gaap:NumberOfReportableSegments

us-gaap:NumberOfReportableSegments


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value02.00002.0
Percentage of NumberOfReportableSegments0.0100.00.00.00.0100.0

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeaseCost


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-31
Value2020181616
Percentage of OperatingLeaseCost100.0100.0100.0100.0100.0

us-gaap:OperatingLeasePayments

us-gaap:OperatingLeasePayments


None
Period End2020-03-312019-09-302019-06-302019-03-31
Value20181616
Percentage of OperatingLeasePayments100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax

us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-1100000.0-1200000.0-1200000.0-1000000.0-1200000.0-1100000.0-1200000.0-1100000.0-1100000.0-1300000.0-1100000.0-2200000.0-300000.0-400000.0-400000.0-300000.0-200000.0-400000.0-300000.0-400000.0-200000.0-400000.0-500000.0-300000.0-200000.0-300000.0-300000.0-300000.0-400000.0-300000.0
Percentage of OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax us-gaap:StatementEquityComponents

matx:AccumulatedDefinedBenefitPostRetirementPlansAdjustmentAttributableToParent


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302016-09-302015-06-30
Value-700000.0-600000.0-500000.0-700000.0-700000.0-700000.0-500000.0-900000.0-1700000.0-300000.0100000.0
Percentage of OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax63.650.050.058.363.663.645.569.277.3100.0-50.0

matx:AccumulatedNonQualifiedPlansAdjustmentAttributableToParent


None
Period End2020-03-312019-09-302019-06-302018-06-302017-09-302016-06-302015-06-30
Value-100000.0-100000.0-100000.0-100000.0-100000.0100000.0-100000.0
Percentage of OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax8.310.08.39.14.5-50.050.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-31
Value-400000.0-500000.0-400000.0-500000.0-400000.0-400000.0-500000.0-400000.0-400000.0-300000.0-400000.0-300000.0-300000.0-400000.0-400000.0-200000.0-400000.0
Percentage of OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax36.441.740.041.736.436.445.530.818.2100.0100.0100.0150.0100.0100.0100.0100.0

us-gaap:AccumulatedOtherComprehensiveIncome


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-31
Value-1100000.0-1200000.0-1000000.0-1200000.0-1100000.0-1100000.0-1100000.0-1300000.0-2200000.0-300000.0-400000.0-300000.0-200000.0-400000.0-400000.0-200000.0-400000.0
Percentage of OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value0.1-0.6-1.2-0.5-0.5-0.2-3.00.1-0.90.2-2.5-0.51.00.7-2.51.20.81.32.61.61.30.9-31.30.70.5
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value0.1-0.6-0.5-0.5-0.20.1-0.90.2-0.51.00.7
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-1300000.0-1300000.0300000.0-1200000.0-900000.0-900000.01800000.0-1100000.0-500000.0-1300000.01400000.0-1000000.0-1200000.0-900000.01800000.0-900000.0-1000000.0-1100000.01700000.0-1200000.0-900000.0-1400000.0-400000.0-700000.0-700000.0-700000.0-1200000.0-1200000.0-900000.0-1400000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax us-gaap:StatementEquityComponents

matx:AccumulatedDefinedBenefitPostRetirementPlansAdjustmentAttributableToParent


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-31
Value-100000.0-100000.0400000.0-100000.0-200000.0-300000.0-200000.0-300000.0-200000.0-300000.0-100000.0-200000.0-200000.0-200000.0-100000.0-200000.0-400000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax7.77.7-33.311.122.227.340.023.120.025.011.122.220.018.28.322.228.6

matx:AccumulatedNonQualifiedPlansAdjustmentAttributableToParent


None
Period End2020-06-302020-03-312019-06-302018-09-302018-06-302018-03-312017-06-302016-09-302016-03-312015-06-30
Value-100000.0-100000.0-100000.0100000.0-100000.0-100000.0-100000.0100000.0-100000.0200000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax7.77.711.1-9.120.07.78.3-11.19.1-22.2

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-31
Value-1100000.0-1100000.0-1600000.0-700000.0-700000.0-900000.0-900000.0-900000.0-800000.0-800000.0-800000.0-800000.0-800000.0-800000.0-1000000.0-900000.0-1000000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax84.684.6133.377.877.881.8180.069.280.066.788.988.980.072.783.3100.071.4

us-gaap:AccumulatedOtherComprehensiveIncome


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-31
Value-1300000.0-1300000.0-1200000.0-900000.0-900000.0-1100000.0-500000.0-1300000.0-1000000.0-1200000.0-900000.0-900000.0-1000000.0-1100000.0-1100000.0-900000.0-1400000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.091.7100.0100.0

us-gaap:OtherComprehensiveIncomeOtherNetOfTax

us-gaap:OtherComprehensiveIncomeOtherNetOfTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312011-09-302011-06-302010-09-302010-06-30
Value-100000.0-700000.0300000.0-700000.0-200000.0100000.0-300000.0200000.0000200000.0-400000.0600000.00-100000.00100000.00100000.0
Percentage of OtherComprehensiveIncomeOtherNetOfTax100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.0100.00.0100.00.0100.00.0100.0

us-gaap:OtherComprehensiveIncomeOtherNetOfTax us-gaap:StatementEquityComponents

matx:AccumulatedOther


None
Period End2020-06-302020-03-312019-09-302019-06-302018-09-302018-06-302018-03-312017-03-312016-09-302016-03-31
Value-400000.0-200000.0-700000.0-200000.0100000.0-300000.0200000.0200000.0600000.0-100000.0
Percentage of OtherComprehensiveIncomeOtherNetOfTax400.028.6100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedOtherComprehensiveIncome


None
Period End2020-06-302020-03-312019-09-302019-06-302018-09-302018-06-302018-03-312017-03-312016-09-302016-03-312015-09-30
Value-400000.0-200000.0-700000.0-200000.0100000.0-300000.0200000.0200000.0600000.0-100000.0100000.0
Percentage of OtherComprehensiveIncomeOtherNetOfTax400.028.6100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:OtherOperatingActivitiesCashFlowStatement

us-gaap:OtherOperatingActivitiesCashFlowStatement


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-30
Value600000.0-100000.0100000.0-1000000.0-600000.0-1500000.00-600000.01000000.03700000.0-2600000.01300000.02700000.0-1600000.0-1600000.0-300000.03300000.0-5200000.0-1100000.0-400000.0300000.0
Percentage of OtherOperatingActivitiesCashFlowStatement100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForConstructionInProcess

us-gaap:PaymentsForConstructionInProcess


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value7.49.1110789.720116551095779126441.35526
Percentage of PaymentsForConstructionInProcess100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsOfFinancingCosts

us-gaap:PaymentsOfFinancingCosts


None
Period End2020-06-302020-03-31
Value153.1
Percentage of PaymentsOfFinancingCosts100.0100.0

us-gaap:PaymentsOfFinancingCosts dei:LegalEntity, us-gaap:LongtermDebtType

matx:MatNav, matx:TitleXiNotes


None
Period End2020-06-222020-04-27
Value6.78.7
Percentage of PaymentsOfFinancingCosts0.00.0

us-gaap:PaymentsOfFinancingCosts us-gaap:CreditFacility

us-gaap:RevolvingCreditFacility


None
Period End2020-03-31
Value2.0
Percentage of PaymentsOfFinancingCosts64.5

us-gaap:PaymentsOfFinancingCosts us-gaap:DebtInstrument

matx:PrivateDebtAgreements


None
Period End2020-03-31
Value0.8
Percentage of PaymentsOfFinancingCosts25.8

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value1000000.04500000.0-200000.0100000.0100000.03100000.0100000.0200000.0100000.04200000.0200000.00100000.07100000.0-900000.0500000.0200000.06100000.00002900000.0100000.0200000.001700000.0
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.0100.00.0100.0

us-gaap:PaymentsToAcquireOtherProductiveAssets

us-gaap:PaymentsToAcquireOtherProductiveAssets


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value7.9262824241317191213116.2142217142230
Percentage of PaymentsToAcquireOtherProductiveAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromIssuanceOfDebt dei:LegalEntity, us-gaap:LongtermDebtType

us-gaap:ProceedsFromIssuanceOfDebt

matx:MatNav, matx:TitleXiNotes


None
Period End2020-06-222020-04-27
Value132177
Percentage of ProceedsFromIssuanceOfDebt100.0100.0

us-gaap:ProceedsFromLinesOfCredit

us-gaap:ProceedsFromLinesOfCredit


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value30011123817010510757412015111712818655100-172.01116629731382
Percentage of ProceedsFromLinesOfCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfProductiveAssets

us-gaap:ProceedsFromSaleOfProductiveAssets


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.9140.91.01.22010.01.00.30.51.20.50.83.11.30.31.32.40.80.40.51.11.91.05.90.4-0.51.06.00.04.06.06.0199.00.0
Percentage of ProceedsFromSaleOfProductiveAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.00.0

us-gaap:RepaymentsOfDebt

us-gaap:RepaymentsOfDebt


None
Period End2020-03-312019-03-312015-03-312014-03-312013-03-31
Value118.22.42.542
Percentage of RepaymentsOfDebt100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfLinesOfCredit

us-gaap:RepaymentsOfLinesOfCredit


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value479133149115125876121421106898966956-32.09657243149
Percentage of RepaymentsOfLinesOfCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability


None
Period End2020-03-312019-09-302019-06-302019-03-31
Value16239.45.8
Percentage of RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross

matx:TimeBasedAndPerformanceBasedShares


None
Period End2020-06-302019-09-302019-06-302018-09-302018-06-302017-09-302017-06-302016-09-30
Value22000.0300.021000.02700.029400.06900.040200.015500.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

matx:TimeBasedAndPerformanceBasedShares


None
Period End2020-06-302019-09-302019-06-302018-09-302018-06-302017-09-302017-06-302016-09-30
Value27.336.4538.3636.5829.0924.0232.0936.95
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShortTermLeaseCost

us-gaap:ShortTermLeaseCost


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-31
Value2400000.0100000.0900000.02500000.02400000.0
Percentage of ShortTermLeaseCost100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesNewIssues us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesNewIssues

us-gaap:CommonStock


None
Period End2020-06-302020-03-312019-06-302019-03-312018-03-312017-03-31
Value100000.0100000.0100000.0100000.0200000.0300000.0
Percentage of StockIssuedDuringPeriodSharesNewIssues100.0100.0100.0100.0100.0100.0

us-gaap:VariableLeaseCost

us-gaap:VariableLeaseCost


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-31
Value200000.0200000.0100000.0100000.0100000.0
Percentage of VariableLeaseCost100.0100.0100.0100.0100.0

matx:LongTermDebtExcludingCurrentMaturitiesGross

matx:LongTermDebtExcludingCurrentMaturitiesGross


None
Period End2020-06-302019-12-31
Value823910
Percentage of LongTermDebtExcludingCurrentMaturitiesGross100.0100.0

us-gaap:AccruedLiabilitiesAndOtherLiabilities

us-gaap:AccruedLiabilitiesAndOtherLiabilities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value8876868993798180857980828576763945446026
Percentage of AccruedLiabilitiesAndOtherLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivable

us-gaap:AllowanceForDoubtfulAccountsReceivable


None
Period End2020-06-302020-03-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value5900000.04700000.04300000.04800000.04600000.04200000.06600000.05000000.04100000.04700000.05300000.06100000.08100000.0
Percentage of AllowanceForDoubtfulAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashAndCashEquivalentsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

us-gaap:CashAndCashEquivalentsFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value19192123241519121213192415191316192025251532529323022322911419
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashAndCashEquivalentsFairValueDisclosure us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value19192123241519121213192415191316192025251532529323022322911419
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value1919212324151912121319241519131619202529323022322911419
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentAnnualPrincipalPayment dei:LegalEntity, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentAnnualPrincipalPayment

matx:MatNav, matx:TitleXiNotes


None
Period End2020-06-222020-04-27
Value3000000.04000000.0
Percentage of DebtInstrumentAnnualPrincipalPayment100.0100.0

us-gaap:DebtInstrumentFaceAmount dei:LegalEntity, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentFaceAmount

matx:MatNav, matx:TitleXiNotes


None
Period End2020-06-222020-04-27
Value139185
Percentage of DebtInstrumentFaceAmount100.0100.0

us-gaap:DebtIssuanceCostsLineOfCreditArrangementsNet

us-gaap:DebtIssuanceCostsLineOfCreditArrangementsNet


None
Period End2020-06-302019-12-31
Value2800000.01300000.0
Percentage of DebtIssuanceCostsLineOfCreditArrangementsNet100.0100.0

us-gaap:DeferredCosts

us-gaap:DeferredCosts


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-312012-12-31
Value52525656576067777380899595908976796857475666
Percentage of DeferredCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredFinanceCostsNet

us-gaap:DeferredFinanceCostsNet


None
Period End2020-06-30
Value16
Percentage of DeferredFinanceCostsNet100.0

us-gaap:DividendsPayableCurrentAndNoncurrent

us-gaap:DividendsPayableCurrentAndNoncurrent


None
Period End2020-06-302019-06-302018-06-302017-06-302016-06-302015-06-302014-06-302013-06-302012-06-30
Value10000000.09400000.09000000.08700000.08200000.07900000.07400000.06900000.06400000.0
Percentage of DividendsPayableCurrentAndNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:CustomerLists


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312014-12-312013-12-312012-12-312011-12-31
Value6057555249464441383532302724217.96.86.25.6
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsGross us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsGross

us-gaap:CustomerLists


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312014-12-312013-12-312012-12-312011-12-31
Value23023023023023023023023023023023010101111
Percentage of FiniteLivedIntangibleAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity us-gaap:CreditFacility

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity

matx:StandbyAndCommercialLettersOfCredit


None
Period End2020-03-312019-12-312018-12-312017-12-312017-06-302012-12-312012-06-30
Value1001001001001001000.0001
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevolvingCreditFacility


None
Period End2020-03-312019-12-312018-12-312017-12-312017-06-302015-07-302015-06-302012-12-312012-06-30
Value650650650650650400375375375
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity650.0650.0650.0650.0650.00.00.0375.0375000000.0

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity us-gaap:CreditFacility

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity

matx:StandbyAndCommercialLettersOfCredit


None
Period End2020-03-31
Value7.7
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity100.0

us-gaap:RevolvingCreditFacility


None
Period End2020-03-312014-12-312013-12-31
Value1636.05.8
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity2124.70.00.0

us-gaap:LongtermDebtPercentageBearingFixedInterestAmount us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

us-gaap:LongtermDebtPercentageBearingFixedInterestAmount

us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value708558585602608594584600616633651664659674685653443447443379378397395393398395292316
Percentage of LongtermDebtPercentageBearingFixedInterestAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongtermDebtPercentageBearingFixedInterestAmount us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value712567579593609613621635637649652664668681683617418427429363364371373377379383286295
Percentage of LongtermDebtPercentageBearingFixedInterestAmount100.4101.698.998.4100.3103.2106.3105.8103.4102.5100.1100.0101.4100.999.894.594.495.496.995.796.293.494.495.995.397.097.793.2

us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value708558585602608594584600616633651664659674685653443447443393398395292316
Percentage of LongtermDebtPercentageBearingFixedInterestAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongtermDebtPercentageBearingVariableInterestAmount us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

us-gaap:LongtermDebtPercentageBearingVariableInterestAmount

us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312012-12-31
Value178357379290235255235273295254205175859955195445424
Percentage of LongtermDebtPercentageBearingVariableInterestAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongtermDebtPercentageBearingVariableInterestAmount us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-302015-06-302012-12-31
Value178357379290235255235273295254205175859955195445411815224
Percentage of LongtermDebtPercentageBearingVariableInterestAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0

us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312012-12-31
Value178357379290235255235273295254205175859955195445424
Percentage of LongtermDebtPercentageBearingVariableInterestAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent


None
Period End2020-03-312019-12-31
Value0.0410.042
Percentage of OperatingLeaseWeightedAverageDiscountRatePercent100.0100.0

us-gaap:RestrictedCashAndCashEquivalents

us-gaap:RestrictedCashAndCashEquivalents


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-03-312016-12-312016-09-30
Value3.05.87.28.78.78.94.93131110
Percentage of RestrictedCashAndCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedCashAndCashEquivalents us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

us-gaap:FairValueInputsLevel1, us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value3.05.87.28.78.78.94.9
Percentage of RestrictedCashAndCashEquivalents100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedCashAndCashEquivalents us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value3.05.87.28.78.78.94.90.931
Percentage of RestrictedCashAndCashEquivalents100.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value3.05.87.28.78.78.94.90.931
Percentage of RestrictedCashAndCashEquivalents100.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:ShortTermBorrowings

us-gaap:ShortTermBorrowings


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value50534842
Percentage of ShortTermBorrowings100.0100.0100.0100.0

Line plots across dimensions of each concept


us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService
(None,)
None
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ConsolidationItems
(None,)
None
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:StatementBusinessSegments
(None,)
None
us-gaap:OperatingIncomeLoss
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
None
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
us-gaap:StatementEquityComponents
(None,)
None
Operating Margin
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
None
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
None
us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType
(None,)
None
us-gaap:Goodwill
us-gaap:StatementBusinessSegments
(None,)
None
us-gaap:LongTermDebt
us-gaap:LongtermDebtType
(None,)
None
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
None
us-gaap:StockIssuedDuringPeriodValueNewIssues
us-gaap:StatementEquityComponents
(None,)
None