Document and Entity Information Statement [Table] Statement [Line Items] Statement Entity Registrant Name Entity Central Index Key Document Type Document Period End Date Amendment Flag Current Fiscal Year End Date Entity Current Reporting Status Entity Filer Category Entity Common Stock, Shares Outstanding Document Fiscal Year Focus Document Fiscal Period Focus Condensed Consolidated Statements of Income and Comprehensive Income Revenues [Abstract] Operating Revenue: This element represents revenue earned primarily through the carriage of containerized freight between various US Pacific Coast, Hawaii, Guam, Micronesia, China and other Pacific island ports. Ocean Transportation Ocean Transportation Total This element represents revenue from rail intermodal, highway brokerage and warehousing. Logistics Services Logistics Total Revenue, Net Operating Revenue Total Operating Revenue Costs and Expenses [Abstract] Costs and Expenses: Operating Costs and Expenses Operating costs Income (Loss) from Equity Method Investments Equity in income of Terminal Joint Venture Company Share of Net Income Equity in income of Terminal Joint Venture Selling, General and Administrative Expense Selling, general and administrative Costs and Expenses Total Costs and Expenses Operating Income (Loss) Operating Income Operating Income Interest Expense Interest expense Interest expense, net Other Nonoperating Income (Expense) Other income (expense), net Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Income before Income Taxes Income Tax Expense (Benefit) Income taxes Net Income (Loss) Attributable to Parent Net Income Net Income Net income Other Comprehensive Income (Loss), Net of Tax [Abstract] Other Comprehensive Income (Loss), Net of Income Taxes: Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax [Abstract] Other Comprehensive Income (Loss): Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Net Prior Service Cost (Credit) Arising During Period, Net of Tax Net gain in prior service cost Other Comprehensive (Income) Loss, Amortization Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Prior Service Cost (Credit), Net of Tax Amortization of prior service cost Amortization of prior service cost Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Gain (Loss), Net of Tax Amortization of net loss Amortization of net loss Other Comprehensive Income, Other, Net of Tax Other adjustments Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Other comprehensive income (loss), net of tax Total Other Comprehensive Income (Loss) Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive Income Earnings Per Share, Basic Net income, Basic (in dollars per share) Basic Earnings Per-Share: (in dollars per share) Earnings Per Share, Diluted Net income, Diluted (in dollars per share) Diluted Earnings Per-Share: (in dollars per share) Earnings Per Share, Basic, Other Disclosures [Abstract] Weighted Average Number of Shares Outstanding: Weighted Average Number of Shares Outstanding, Basic Basic (in shares) Weighted Average Number of Shares Outstanding, Diluted Diluted (in shares) Diluted (in shares) Condensed Consolidated Balance Sheets Assets [Abstract] ASSETS Assets, Current [Abstract] Current Assets: Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents Receivables, Net, Current Accounts receivable, net Prepaid Expense and Other Assets, Current Prepaid expenses and other assets Assets, Current Total current assets Assets, Noncurrent [Abstract] Long-term Assets: Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Investment in Terminal Joint Venture Investment in Terminal Joint Venture Property, Plant and Equipment, Net Property and equipment, net Property and equipment, net Goodwill Goodwill Intangible Assets, Net (Excluding Goodwill) Intangible assets, net Net Amount Deferred Costs, Noncurrent Deferred dry-docking costs, net Other Assets, Noncurrent Other long-term assets Assets, Noncurrent Total long-term assets Assets Total Assets Liabilities and Equity [Abstract] LIABILITIES AND SHAREHOLDERS' EQUITY Liabilities, Current [Abstract] Current Liabilities: Debt, Current Current portion of debt Accounts Payable, Current Accounts payable Accrued Liabilities and Other Liabilities Accruals and other liabilities Liabilities, Current Total current liabilities Liabilities, Noncurrent [Abstract] Long-term Liabilities: Long-term Debt, Excluding Current Maturities Long-term debt Deferred Tax Liabilities, Net, Noncurrent Deferred income taxes Other Liabilities, Noncurrent Other long-term liabilities Liabilities, Noncurrent Total long-term liabilities Commitments and Contingencies. Commitments and Contingencies (Note 2) Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Shareholders' Equity: Common Stock, Value, Issued Common stock Additional Paid in Capital, Common Stock Additional paid in capital Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive loss, net Retained Earnings (Accumulated Deficit) Retained earnings Stockholders' Equity Attributable to Parent Balance at the end of the period Balance at the beginning of the period Total shareholders' equity Liabilities and Equity Total liabilities and shareholders' equity Condensed Consolidated Statements of Cash Flows Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Cash Flows From Operating Activities: Income (Loss) from Continuing Operations Attributable to Parent Net income Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Reconciling adjustments: Depreciation, Depletion and Amortization Depreciation and amortization Deferred Income Taxes and Tax Credits Deferred income taxes Share-based Compensation. Share-based compensation expense Proceeds from Contributions from Affiliates Distribution from Terminal Joint Venture Other Operating Activities, Cash Flow Statement Other Increase (Decrease) in Operating Capital [Abstract] Changes in assets and liabilities: Increase (Decrease) in Accounts and Notes Receivable Accounts receivable, net Represents the increase (decrease) during the reporting period in the value of dry-docking payments made during the current reporting period for benefits that will be received over a period of years. Increase (Decrease) in Deferred Dry Docking Payments Deferred dry-docking payments Represents the increase (decrease) during the reporting period in the value of dry-docking amortization during the current reporting period for benefits that will be received over a period of years. Increase (Decrease) in Deferred Dry Docking Amortization Deferred dry-docking amortization Increase (Decrease) in Prepaid Expense and Other Assets Prepaid expenses and other assets Increase (Decrease) in Accounts Payable Accounts payable, accruals and other liabilities Increase (Decrease) in Other Noncurrent Liabilities Other long-term liabilities Net Cash Provided by (Used in) Operating Activities Net cash provided by operating activities Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Cash Flows From Investing Activities: Payments for Construction in Process Capitalized vessel construction expenditures Payments to Acquire Other Productive Assets Other capital expenditures The net cash inflow or outflow from the disposal of property and equipment during the period. Payments for (Proceeds from) Disposal of Property and Equipment Proceeds from (payments for) disposal of property and equipment Increase in Restricted Cash Cash deposits into Capital Construction Fund Cash Deposits Into CCF Decrease in Restricted Cash Qualifying withdrawal from CCF Withdrawals from Capital Construction Fund Payments for (Proceeds from) Other Investing Activities Other Net Cash Provided by (Used in) Investing Activities Net cash used in investing activities Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Cash Flows From Financing Activities: Repayments of Debt and Capital Lease Obligations Repayments of debt and capital leases Proceeds from Lines of Credit Proceeds from revolving credit facility Repayments of Lines of Credit Repayments of revolving credit facility Payments of Financing Costs Payment of financing costs Proceeds from Issuance of Common Stock Proceeds from issuance of capital stock Payments of Ordinary Dividends, Common Stock Dividends paid Payments for Repurchase of Common Stock Repurchase of Matson common stock Payments Related to Tax Withholding for Share-based Compensation Tax withholding related to net share settlements of restricted stock units Net Cash Provided by (Used in) Financing Activities Net cash provided by financing activities Cash and Cash Equivalents, Period Increase (Decrease) Net (Decrease) Increase in Cash and Cash Equivalents Cash and Cash Equivalents, at Carrying Value, Including Discontinued Operations Cash and Cash Equivalents, End of the Period Cash and Cash Equivalents, Beginning of the Period Supplemental Cash Flow Information [Abstract] Supplemental Cash Flow Information: Interest Paid, Net Interest paid, net of capitalized interest Income Taxes Paid, Net Income tax paid, net of income tax refunds Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Non-cash Information: Represents the future cash outflow to pay for purchases of fixed assets and dry-docking that have occurred. Capital Expenditures and Dry Docking Incurred but Not Yet Paid Capital expenditures included in accounts payable, accruals and other liabilities Consolidated Statement of Stockholders' Equity Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Common Stock [Member] Common Stock Additional Paid In Capital [Member] Additional Paid In Capital Accumulated Other Comprehensive Income [Member] Accumulated Other Comprehensive Income (Loss) Retained Earnings [Member] Retained Earnings Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity Common Stock, Shares, Outstanding Balance (in shares) Balance (in shares) Cumulative Effect on Retained Earnings, Net of Tax Reclassification resulting from adoption of new accounting pronouncements (see Note 2) Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Share-based compensation Stock Issued During Period, Value, New Issues Shares issued Stock Issued During Period, Shares, New Issues Shares issued (in shares) Stock Repurchased During Period, Value Shares repurchased Stock Repurchased During Period, Shares Shares repurchased (in shares) Dividends, Common Stock, Cash Dividends Common Stock, Dividends, Per Share, Cash Paid Dividends (per share) DESCRIPTION OF THE BUSINESS Business Description and Basis of Presentation [Text Block] DESCRIPTION OF THE BUSINESS SIGNIFICANT ACCOUNTING POLICIES Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] SIGNIFICANT ACCOUNTING POLICIES REPORTABLE SEGMENTS Segment Reporting Disclosure [Text Block] REPORTABLE SEGMENTS PROPERTY AND EQUIPMENT Property, Plant and Equipment Disclosure [Text Block] PROPERTY AND EQUIPMENT GOODWILL AND INTANGIBLES ASSETS Goodwill and Intangible Assets Disclosure [Text Block] GOODWILL AND INTANGIBLES ASSETS DEBT Debt Disclosure [Text Block] DEBT ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS). Comprehensive Income (Loss) Note [Text Block] ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) FAIR VALUE MEASUREMENTS Fair Value Disclosures [Text Block] FAIR VALUE MEASUREMENTS EARNINGS PER-SHARE Earnings Per Share [Text Block] EARNINGS PER-SHARE SHARE-BASED COMPENSATION Disclosure of Compensation Related Costs, Share-based Payments [Text Block] SHARE-BASED COMPENSATION PENSION AND POST-RETIREMENT PLANS Pension and Other Postretirement Benefits Disclosure [Text Block] PENSION AND POST-RETIREMENT PLANS Basis of Accounting, Policy [Policy Text Block] Basis of Presentation Fiscal Period, Policy [Policy Text Block] Fiscal Period Significant Accounting Policies [Text Block] Significant Accounting Policies Revenue Recognition and Expenses [Policy Text Block] Recognition of Revenues and Expenses Disclosure of the accounting policy for assets that are restricted in their use, generally by contractual agreements or regulatory requirements. This would include, but not limited to, a description of the restricted assets and the terms of the restriction. Capital Construction Fund Investment, Policy [Policy Text Block] Investment in Terminal Joint Venture Income Tax, Policy [Policy Text Block] Income Taxes Disclosure of accounting policy for legal contingencies. Legal Contingencies [Policy Text Block] Contingencies New Accounting Pronouncements, Policy [Policy Text Block] New Accounting Pronouncements Segments [Axis] Segment [Domain] Segment [Domain] Represents information pertaining to ocean transportation segment that carries freight between various U.S. Pacific Coast, major Hawaii ports, Guam, China and other Pacific ports and provides terminal, stevedoring and container equipment management services in Hawaii. Ocean Transportation Segment [Member] Ocean Transportation Represents information pertaining to logistics services segment that arranges domestic and international rail intermodal service, long-haul and regional highway brokerage, specialized hauling, flat-bed and project work, less-than-truckload, expedited freight services, and warehousing and distribution services. Logistics Services Segment [Member] Logistics Tabular disclosure of principal revenue generating activities by segment. Schedule of Principal Revenue Generating Activities by Segment [Table Text Block] Schedule of principal revenue generating activities by segment Tabular disclosure of assets that are restricted in their use, generally by contractual agreements or regulatory requirements. Schedule Of Restricted Assets [Table Text Block] Schedule of assigned eligible accounts receivable, and on deposit to the Capital Construction Fund Equity Method Investments [Table Text Block] Schedule of condensed income statement information (unaudited) for Terminal Joint Venture Schedule of Segment Reporting Information, by Segment [Table Text Block] Schedule of reportable segment information Property, Plant and Equipment [Table Text Block] Schedule of property and equipment Schedule of Goodwill [Table Text Block] Schedule of goodwill Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block] Schedule of intangible assets Schedule of Long-term Debt Instruments [Table Text Block] Schedule of debt Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Schedule of changes in accumulated other comprehensive income (loss) by component, net of tax Fair Value Measurements, Recurring and Nonrecurring [Table Text Block] Schedule of fair value measurement Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of basic and diluted earnings per share Schedule of Net Benefit Costs [Table Text Block] Components of net periodic benefit cost (benefit) Schedule reflecting information about the organization of the business. Description of Business [Table] Investment, Name [Axis] Equity Method Investee Name [Domain] Equity Method Investee Name [Domain] Represents SSA Terminals, LLC (SSAT). Ssa Terminals Llc [Member] SSAT Line items represent description about business. Description of Business [Line Items] DESCRIPTION OF THE BUSINESS Number of Reportable Segments Number of reportable segments Number of segments Business Combination, Ownership Percentage Ownership interest in SSAT (as a percent) Represents the number of ports terminal facilities on which the investee provides terminal and stevedoring services. Number of Terminal Facilities on which Investee Provides Terminal and Stevedoring Services Number of terminal facilities on which SSAT provided terminal and stevedoring services on the U.S. West Coast Amount of ocean transportation services revenue. Ocean Transportation Services Revenue Ocean Transportation services Amount of terminal and other related services revenue. Terminal and other related services revenue Terminal and other related services Amount of fuel sales revenue. Fuel Sales Revenue Fuel sales Amount of ship management services revenue and related costs. Ship Management Services Revenue Ship management services and related costs Percentage of ocean transportation revenues and fuel sales denominated in foreign currency. Percentage of Ocean Transportation and Fuel Sales Revenues Denominated in Foreign Currency Percentage of ocean transportation revenues and fuel sales denominated in foreign currency Amount of transportation brokerage and freight forwarding services revenue. Transportation Brokerage and Freight Forwarding Services Revenue Transportation Brokerage and Freight Forwarding Services Amount of warehouse and distribution services revenue. Warehouse and Distribution Services Revenue Warehouse and distribution services Amount of supply chain management and other services revenue. Supply Chaing Management and Other Services Revenue Supply chain management and other services Percentage of transportation brokerage and freight forwarding services revenue denominated in forgeign currency. Percentage Of Transportation Brokerage and Freight Services Revenue DenominatedInForeignCurrency Percentage of transportation brokerage and freight forwarding services revenue denominated in forgeign currency The amount on deposit in the Capital Construction Fund invested in a money market fund, reflected in the consolidated balance sheets. Net Balance of Amounts Accrued for Capital Construction Fund Capital Construction Fund - cash on deposit CCF - cash on deposit Schedule of Equity Method Investments [Table] Schedule of Equity Method Investments [Line Items] Investments in affiliates Equity Method Investment, Summarized Financial Information [Abstract] Financial information for equity method investment Equity Method Investment, Summarized Financial Information, Revenue Operating revenue Equity Method Investment, Summarized Financial Information, Cost of Sales Operating costs and expenses Equity Method Investment, Summarized Financial Information, Gross Profit (Loss) Operating Income Equity Method Investment, Summarized Financial Information, Net Income (Loss) Net Income Amount of income tax expense (benefit) from effect of Tax Cuts and Jobs Act of 2017. Tax Cuts and Jobs Act of 2017, Income Tax Expense (Benefit) Tax Act, income tax expense (benefit) Amount of reasonable estimate for income tax expense (benefit) for remeasurement of deferred tax from change in tax rate pursuant to Tax Cuts and Jobs Act of 2017 for which accounting for tax effect is incomplete. Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Change in Tax Rate, Provisional Income Tax Expense (Benefit) Reclassification adjustment related to the Tax Act Remeasurement and discrete adjustments related to the Tax Act Internal Revenue Service sequestration rate on alternative minimum tax refunds. Income Taxes, Sequestration Rate on Alternative Minimu Tax Refunds Sequestration rate (as a percent) New Accounting Pronouncements or Change in Accounting Principle [Table] New Accounting Pronouncements or Change in Accounting Principle [Line Items] Schedule of Segment Reporting Information, by Segment [Table] Segment Reporting Information [Line Items] Segment results Property, Plant and Equipment [Table] Property, Plant and Equipment, Type [Axis] Property Plant And Equipment Type [Domain] Property Plant And Equipment Type [Domain] Assets commonly used for the storage of liquids. Vessels [Member] Vessels Containers [Member] Containers and equipment Represents information pertaining to the terminal facilities and the other property of the entity. Terminal Facilities And Other Property [Member] Terminal facilities and other property Represents information pertaining to Vessel construction in progress. Vessel Construction In Progress [Member] Vessel construction in progress Construction In Progress [Member] Other construction in progress Property, Plant and Equipment [Line Items] Property and equipment Property, Plant and Equipment, Gross Cost Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Less: Accumulated Depreciation Capitalized Interest Costs, Including Allowance for Funds Used During Construction [Abstract] Capitalized Interest Interest Costs Capitalized Number of vesels under agreements for contstruction. Number of Vessels Under Agreement for Construction Number of vesels under agreements for contstruction Schedule of Goodwill [Table] Goodwill [Line Items] Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite Lived Intangible Assets Major Class Name [Domain] Finite Lived Intangible Assets Major Class Name [Domain] Customer Lists [Member] Customer Relationships. Acquired Finite-Lived Intangible Assets [Line Items] Intangible assets Finite-lived Intangible Assets [Roll Forward] Finite-lived Intangible Assets Finite-Lived Intangible Assets, Gross Total Finite-Lived Intangible Assets, Accumulated Amortization Less: Accumulated Amortization Finite-Lived Intangible Assets, Net Net Amount Indefinite-Lived Intangible Assets (Excluding Goodwill) Indefinite-Lived intangible asset Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Estimated amortization expenses related to intangibles Schedule of Long-term Debt Instruments [Table] Long-term Debt, Type [Axis] Longterm Debt Type [Domain] Longterm Debt Type [Domain] Represents the 5.79 percent term loans payable through 2020. Term Loans Payable5.79 Percent Through2020 [Member] 5.79%, payable through 2020 Represents the 3.66 percent term loans payable through 2023. Term Loans Payable3.66 Percent Through2023 [Member] 3.66%, payable through 2023 Represents the 4.16 percent term loans payable through 2027. Term Loans Payable4.16 Percent Through2027 [Member] 4.16%, payable through 2027 Represents the 3.37 percent term loans payable through 2027. Term Loans Payable3037 Percent Through2027 [Member] 3.37 %, payable through 2027 Represents the 3.14 percent term loans payable through 2031. Term Loans Payable3.14 Percent Through2031 [Member] 3.14%, payable through 2031 Represents the 4.31 percent term loans payable through 2032. Term Loans Payable4.31 Percent Through2032 [Member] 4.31%, payable through 2032 Represents the 4.35 percent term loans payable through 2044. Term Loans Payable4.35 Percent Through2044 [Member] 4.35%, payable through 2044 Represents the 3.92 percent term loans payable through 2045. Term Loans Payable3.92 Percent Through2045 [Member] 3.92%, payable through 2045 Represents the 5.34% secured notes payable through 2028. Secured Bonds Payable5.34 Percent Through2028 [Member] 5.34%, payable through 2028 Represents the 5.27% secured notes payable through 2029. Secured Bonds Payable5.27 Percent Through2029 [Member] 5.27%, payable through 2029 Debt Instrument [Line Items] Debt Capital Lease Obligations Capital leases Long-term Debt. Total Debt Long-term Debt, Current Maturities Less current portion Long-term Debt and Capital Lease Obligations Total Long-term Debt Debt Instrument, Interest Rate, Stated Percentage Interest rate (as a percent) Line of Credit Facility, Remaining Borrowing Capacity Funds available under the revolving credit facility Debt Instrument, Interest Rate During Period Interest rate during period (as a percent) Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Line Items] AOCI Attributable to Parent, Net of Tax [Roll Forward] Changes in accumulated other comprehensive loss by component, net of taxes Fair Value, by Balance Sheet Grouping [Table] Fair Value, Hierarchy [Axis] Fair Value Measurements Fair Value Hierarchy [Domain] Fair Value Measurements Fair Value Hierarchy [Domain] Fair Value Inputs Level1 [Member] Quoted Prices in Active Markets (Level 1) Fair Value Inputs Level2 [Member] Significant Observable Inputs (Level 2) Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair value of financial instruments Cash and Cash Equivalents, Fair Value Disclosure Cash and cash equivalents Long-term Debt, Percentage Bearing Variable Interest, Amount Variable rate debt Long-term Debt, Percentage Bearing Fixed Interest, Amount Fixed rate debt Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Earnings Per Share ("EPS") Net Income (Loss) Available to Common Stockholders, Basic [Abstract] Net Income Net Income (Loss) Available to Common Stockholders, Basic Net Income, Basic Net Income (Loss) Available to Common Stockholders, Diluted Net Income, Diluted Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract] Weighted Average Common Shares Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Effect of Dilutive Securities (in shares) Earnings Per Share, Basic and Diluted [Abstract] Per Common Share Amount The amount per share resulting from the "as if" assumption that stock options or restrictive stock units were exercised for purposes of computing the dilutive effect of convertible securities.}{Modified Standard, Period Start, Period End, or Total Labels} Dilutive Securities Earnings Per Share, Effect on Basic Earnings Per Share Effect of Dilutive Securities (in dollars per shares) Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Award Type [Axis] Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] Represents information pertaining to time-based shares. Time Based And Performance Based Shares [Member] Time-based and performance-based shares Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based compensation Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Shares granted Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Weighted-average grant date fair value (in dollars per share) Allocated Share-based Compensation Expense Total stock-based compensation cost Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Total unrecognized compensation cost Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Unrecognized compensation cost over weighted-average period to be recognized Schedule of Defined Benefit Plans Disclosures [Table] Defined Benefit Plan Disclosure [Line Items] Pension and Post-retirement Plans Defined Benefit Plan, Net Periodic Benefit Cost [Abstract] Components of Net Periodic Benefit Cost (Benefit): Defined Benefit Plan, Service Cost Service cost Amount of benefit (cost) adjustment for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. Defined Benefit Plan, Service Cost Adjustment Service cost Defined Benefit Plan, Interest Cost Interest cost Amount of benefit (cost) recoginzed for passage of time related to defined benefit plan. Defined Benefit Plan, Interest Cost Adjustment Interest cost Defined Benefit Plan, Expected Return on Plan Assets Expected return on plan assets Defined Benefit Plan, Amortization of Gains (Losses) Amortization of net loss Defined Benefit Plan, Amortization of Prior Service Cost (Credit) Amortization of prior service credit Defined Benefit Plan, Other Cost (Credit) Other adjustments Defined Benefit Plan, Net Periodic Benefit Cost Net periodic benefit cost Legal Entity [Axis] Entity [Domain] Entity [Domain] Information pertaining to MatNav, a wholly-owned subsidiary. Mat Nav [Member] MatNav Restricted Cash and Cash Equivalents [Axis] Restricted Cash And Cash Equivalents Cash And Cash Equivalents [Member] Cash and Cash Equivalents [Domain] Cash [Member] Cash Receivable Type [Axis] Receivable Type [Domain] Receivable [Domain] Trade Accounts Receivable [Member] Eligible Accounts Receivable Assigned to CCF Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Other Assets [Member] Long-term Assets Adjustments for New Accounting Pronouncements [Axis] Type Of Adoption [Member] Type of Adoption [Domain] Information pertaining to ASU 2018-02. Accounting Standards Update201802 [Member] Accounting Standards Update 2018-02 Accounting Standards Update 2017-07 Compensation-Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost. Accounting Standards Update201707 [Member] Accounting Standards Update 2017-07 New Accounting Pronouncement, Early Adoption [Axis] New Accounting Principles Early Adoption [Member] New Accounting Principles, Early Adoption [Domain] Adjustments For New Accounting Principle Early Adoption [Member] Adjustments for New Accounting Principle, Early Adoption Scenario [Axis] Scenario Unspecified [Domain] Scenario Unspecified [Domain] Restatement Adjustment [Member] Adjustments Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Operating Segments [Member] Operating segments Intersegment Elimination [Member] Intersegment Eliminations Indefinite-lived Intangible Assets [Axis] Indefinite Lived Intangible Assets Major Class Name [Domain] Indefinite-lived Intangible Assets, Major Class Name [Domain] Trade Names [Member] Trade Names Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Revolving Credit Facility [Member] Revolving Credit Facility Accumulated Defined Benefit Plans Adjustment [Member] Pensions Accumulated other comprehensive (income) loss related to defined benefit post retirement plans attributable to the parent. Accumulated Defined Benefit Post Retirement Plans Adjustment Attributable To Parent [Member] Post Retirement Accumulated other comprehensive (income) loss related to non-qualified plans attributable to the parent. Accumulated Non Qualified Plans Adjustment Attributable To Parent [Member] Non-Qualified Plans Accumulated other comprehensive income (loss) resulting from other as not defined anywhere in the taxonomy. Accumulated Other [Member] Other Measurement Basis [Axis] Portion At Fair Value Fair Value Disclosure [Member] Portion at Fair Value Measurement [Member] Carrying Reported Amount Fair Value Disclosure [Member] Carrying value Estimate Of Fair Value Fair Value Disclosure [Member] Fair Value Measurement Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Selling General And Administrative Expenses [Member] Selling, general and administrative expenses Retirement Plan Type [Axis] Retirement Plan Type [Domain] Defined Benefit Plans [Domain] Pension Plans Defined Benefit [Member] Pension Benefits Other Postretirement Benefit Plans Defined Benefit [Member] Post-retirement Benefits