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 Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Filer Category Entity Public Float Entity Common Stock, Shares Outstanding Document Fiscal Year Focus Document Fiscal Period Focus 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 This element represents revenue from rail intermodal, highway brokerage and warehousing. Logistics Services Logistics Revenue, Net 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) loss of terminal joint venture Company Share of Net Income (Loss) Selling, General and Administrative Expense Selling, general and administrative Professional fees and other costs associated with the spin-off of the Company's non-transportation segments. Separation Cost Separation costs Costs and Expenses Total costs and expenses Operating Income (Loss) Operating income Operating Income Interest Expense Interest expense Interest expense, net Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Income from Continuing Operations Before Income Taxes Income before income taxes Income Tax Expense (Benefit) Income tax expense Income taxes Total income taxes expense Income (Loss) from Continuing Operations Attributable to Parent Income (Loss) from Continuing Operations Attributable to Parent, Total Net income from continuing operations Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent Net Income (Loss) from Discontinued Operations Net of Income taxes Loss from discontinued operations Loss from discontinued operations (net of tax) Loss From Discontinued Operations (net of 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 (loss) gain in prior service cost Prior service credit 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 included in net periodic pension cost Amortization of prior service cost included in net periodic pension 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 included in net periodic pension cost Amortization of unrecognized (loss) gain Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Foreign currency translation adjustment Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax, Portion Attributable to Noncontrolling Interest Other comprehensive income from discontinued operations Other Comprehensive Income (Loss), Net of Tax Other comprehensive income, net of tax Total Other Comprehensive (Loss) Income Other comprehensive income (loss) net of tax (expense) benefit Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Comprehensive Income Earnings Per Share, Basic [Abstract] Per Common Share Amount, Basic Basic Earnings (Loss) Per Share: Income (Loss) from Continuing Operations, Per Basic Share Basic (in dollars per share) Continuing operations (in dollars per share) Income from continuing operations (in dollars per share) Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share Loss from discontinued operations (in dollars per share) Discontinued operations (in dollars per share) Earnings Per Share, Basic Net income (in dollars per share) Earnings Per Share, Basic, Total Basic (in dollars per share) Earnings Per Share, Diluted [Abstract] Per Common Share Amount, Diluted Diluted Earnings (Loss) Per Share: Income (Loss) from Continuing Operations, Per Diluted Share Diluted (in dollars per share) Continuing operations (in dollars per share) Income from continuing operations (in dollars per share) Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share Loss from discontinued operations (in dollars per share) Discontinued operations (in dollars per share) Earnings Per Share, Diluted Net income (in dollars per share) Earnings Per Share, Diluted, Total Diluted (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) 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 Deferred Tax Assets, Net of Valuation Allowance, Current Deferred income taxes Prepaid Expense and Other Assets, Current Prepaid expenses and other assets Assets, Current Total current assets Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Investment in terminal joint venture Property, Plant and Equipment, Net Property and equipment, net Property and equipment, net Intangible Assets, Net (Including Goodwill) Goodwill and intangible assets, net The net balance of amount accrued for withdrawal and deposits to the Capital Construction Fund, reflected in the consolidated balance sheets. Net Balance of Amounts Accrued for Capital Construction Fund Capital Construction Fund deposits CCF Deposits, Capital Construction Fund Deposits Other Assets, Noncurrent Other 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 Employee-related Liabilities, Current Payroll and vacation benefits Self Insurance Reserve, Current Uninsured liabilities Other Liabilities, Current Accrued 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 Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent Non-current liabilities, net Employee benefit plans Other Liabilities, Noncurrent Uninsured and other liabilities Liabilities, Noncurrent Total long-term liabilities Commitments and Contingencies. Commitments and Contingencies Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Shareholders' Equity: Common Stock, Value, Issued Capital stock - common stock without par value; authorized, 150 million shares ($0.75 stated value per share); outstanding, 43.2 million shares in 2014 and 42.8 million shares in 2013 Additional Paid in Capital, Common Stock Additional paid in capital Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive loss Retained Earnings (Accumulated Deficit) Retained earnings Stockholders' Equity Attributable to Parent Balance Balance Total shareholders' equity Liabilities and Equity Total liabilities and shareholders' equity Common Stock, Shares Authorized Capital stock, shares authorized Common Stock, Par or Stated Value Per Share Capital stock, stated value (in dollars per share) Common Stock, Shares, Outstanding Balance (in shares) Balance (in shares) Capital stock, shares outstanding Consolidated Statements of Cash Flows Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Cash Flows From Operating Activities: 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 Tax Expense (Benefit) Deferred income taxes Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property (Gain) loss on disposal of property Pension and Other Postretirement Benefit Expense Post-retirement (income) expense Share-based Compensation. Share-based compensation expense Impairment of Intangible Assets, Finite-lived Impairment of intangible assets Impairment on long lived intangible assets Adjustments in operating activities related to tax benefit from equity issuance. Tax Benefit from Equity Issuance Tax benefit from equity issuance Excess Tax Benefit from Share-based Compensation, Operating Activities Excess tax benefit from stock-based compensation Increase (Decrease) in Operating Capital [Abstract] Changes in assets and liabilities: Increase (Decrease) in Accounts and Notes Receivable Accounts receivable 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 and accrued liabilities Increase (Decrease) in Other Operating Liabilities Other liabilities Net Cash Provided by (Used in) Operating Activities, Continuing Operations Net cash provided by operating activities from continuing operations Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Cash Flows From Investing Activities: Payments to Acquire Productive Assets Capital expenditures Capital expenditures Proceeds from Sale of Productive Assets Proceeds from disposal of property and equipment Increase in Restricted Cash Deposits into Capital Construction Fund Cash deposits Decrease in Restricted Cash Qualified Withdrawals Withdrawals from Capital Construction Fund Payments to Acquire Businesses, Net of Cash Acquired Payments for acquisitions Represents dividends received from the former parent company prior to the separation. Dividends Received from Former Parent Contribution from the Former Parent Company Net Cash Provided by (Used in) Investing Activities, Continuing Operations Net cash used in investing activities from continuing operations Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Cash Flows From Financing Activities: Excess Tax Benefit from Share-based Compensation, Financing Activities Excess tax benefit from stock-based compensation Proceeds from Issuance of Long-term Debt Proceeds from issuance of long-term debt Repayments of Long-term Debt Payments of long-term debt Proceeds from (Repayments of) Short-term Debt (Payments) to/ proceeds from the line-of-credit agreements, net Payments of Financing Costs Payment of financing costs Repayments of Long-term Capital Lease Obligations Payment of capital leases Proceeds from Issuance of Common Stock Proceeds from issuance of capital stock Payments Related to Tax Withholding for Share-based Compensation Tax withholding related to net share settlements of restricted stock units Payments of Ordinary Dividends, Common Stock Dividends paid Total cash outflows in relation to the separation from the Former Parent Company during the reporting period. Payments for Distribution upon Separation Contribution to A&B upon Separation Contributions to A&B Cash Acquired from Acquisition Cash assumed by A&B upon Separation This element represents cash outflows from distribution to former parent company for proceeds from issuance of capital stock. Distribution to Former Parent Company for Proceeds from Issuance of Common Stock Distribution to Former Parent Company from issuance of capital stock Net Cash Provided by (Used in) Financing Activities, Continuing Operations Net cash provided by (used in) financing activities from continuing operations Net Cash Provided by (Used in) Discontinued Operations [Abstract] Cash Flows From Discontinued Operations: Cash Provided by (Used in) Operating Activities, Discontinued Operations Cash flows used in operating activities of discontinued operations Cash Provided by (Used in) Investing Activities, Discontinued Operations Cash flows used in investing activities of discontinued operations Cash Provided by (Used in) Financing Activities, Discontinued Operations Cash flows provided by financing activities of discontinued operations Net Cash Provided by (Used in) Discontinued Operations Net cash flows used in discontinued operations Cash and Cash Equivalents, Period Increase (Decrease) Net Increase (Decrease) in Cash and Cash Equivalents Cash and Cash Equivalents, at Carrying Value, Including Discontinued Operations Cash and cash equivalents, end of the year Cash and cash equivalents, beginning of the year Supplemental Cash Flow Information [Abstract] Supplemental Cash Flow Information: Interest Paid, Net Interest paid Income Taxes Paid, Net Income tax (refund) paid 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 and accrued liabilities Capital Expenditures Incurred but Not yet Paid Capital lease obligations Consolidated Statement of Stockholders' Equity Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Common Stock [Member] Common Stock Treasury Stock [Member] Treasury Additional Paid In Capital [Member] Additional Paid In Capital Accumulated Other Comprehensive Income [Member] Accumulated Other Comprehensive Income Retained Earnings [Member] Retained Earnings Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity Adjustments Related to Tax Withholding for Share-based Compensation Excess tax benefit and share withholding Shares Paid for Tax Withholding for Share Based Compensation Excess tax benefit and share withholding (in shares) 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) Treasury Stock, Retired, Cost Method, Amount Retirement of treasury shares Treasury Stock, Shares, Retired Retirement of treasury shares (in shares) Dividends, Common Stock, Cash Dividends ($0.66, $0.62, and $0.93 per share) for the years 2014, 2013 and 2012 respectively Stockholders' Equity Note, Spinoff Transaction Distribution of A&B Stock 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 INVESTMENT IN TERMINAL JOINT VENTURE Equity Method Investments and Joint Ventures Disclosure [Text Block] INVESTMENT IN TERMINAL JOINT VENTURE PROPERTY AND EQUIPMENT Property, Plant and Equipment Disclosure [Text Block] PROPERTY AND EQUIPMENT GOODWILL AND INTANGIBLE ASSETS Goodwill and Intangible Assets Disclosure [Text Block] GOODWILL AND INTANGIBLE ASSETS CAPITAL CONSTRUCTION FUND Restricted Assets Disclosure [Text Block] CAPITAL CONSTRUCTION FUND DEBT Debt Disclosure [Text Block] DEBT LEASES Leases of Lessee Disclosure [Text Block] LEASES PENSION AND POST-RETIREMENT PLANS Pension and Other Postretirement Benefits Disclosure [Text Block] PENSION AND POST-RETIREMENT PLANS INCOME TAXES. Income Taxes: Income Tax Disclosure [Text Block] INCOME TAXES SHARE-BASED AWARDS Disclosure of Compensation Related Costs, Share-based Payments [Text Block] SHARE-BASED AWARDS COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] COMMITMENTS AND CONTINGENCIES RELATED PARTY TRANSACTIONS Related Party Transactions Disclosure [Text Block] RELATED PARTY TRANSACTIONS REPORTABLE SEGMENTS Segment Reporting Disclosure [Text Block] REPORTABLE SEGMENTS QUARTERLY INFORMATION (Unaudited) Quarterly Financial Information [Text Block] QUARTERLY INFORMATION (Unaudited) Consolidation, Policy [Policy Text Block] Principles of Consolidation