Document and Entity Information Document Information [Table] Document Information [Line Items] Document and Entity Information Document Type Document Period End Date Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date Document Fiscal Year Focus Document Fiscal Period Focus Amendment Flag CONDENSED CONSOLIDATED BALANCE SHEETS Statement of Financial Position Assets [Abstract] ASSETS Assets, Current [Abstract] CURRENT ASSETS Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents Accounts Receivable, Net, Current Accounts receivable, net Inventory, Net Inventories Prepaid Expense, Current Prepaid expenses Due from Related Parties, Current Due from related parties Other Receivable, after Allowance for Credit Loss, Current, Related Party, Type [Extensible Enumeration] Short-Term Investments Investments Total Other Assets, Current Other current assets Total other current assets Assets, Current Total current assets NON-CURRENT ASSETS NON-CURRENT ASSETS Property, Plant and Equipment, Net Balance at the end of the period Balance at the beginning of the period Fixed assets at cost, net of accumulated depreciation of $1,704,983 (2025: $1,622,344) Deposits Assets, Noncurrent Advances for vessels under construction and vessel acquisition Deferred Costs, Noncurrent Balance at the end of the period Balance at the beginning of the period Deferred charges, net Long-Term Investments Investments Total Other Assets, Noncurrent Other non-current assets Total other non-current assets Assets, Noncurrent Total non-current assets Assets Total Assets Total assets Liabilities and Equity [Abstract] LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities, Current [Abstract] CURRENT LIABILITIES Accounts Payable, Current Accounts payable Accrued Liabilities, Current Accrued liabilities Total Long-term Debt, Current Maturities Current portion of long-term debt, net Contract with Customer, Liability, Current Unearned revenue Current portion of unearned revenue Other Liabilities, Current Other current liabilities Total other current liabilities Liabilities, Current Total current liabilities Liabilities, Noncurrent [Abstract] LONG-TERM LIABILITIES Long-term Debt, Excluding Current Maturities Long-term debt, net Total long-term debt net of current portion and long term portion of deferred finance costs Contract with Customer, Liability, Noncurrent Unearned revenue, net of current portion Non-current portion of unearned revenue Other Liabilities, Noncurrent Other long-term liabilities Total other long-term liabilities Liabilities, Noncurrent Total long-term liabilities Liabilities Total liabilities Commitments and Contingencies. Commitments and Contingencies Stockholders' Equity Attributable to Parent [Abstract] STOCKHOLDERS' EQUITY Preferred Stock, Value, Outstanding Preferred stock (par value $0.01, 100,000,000 preferred shares authorized and not issued as of June 30, 2026 and December 31, 2025) Common Stock, Value, Outstanding Common stock par value $0.01, 750,000,000 common shares authorized as of June 30, 2026 and December 31, 2025. 25,790,282 and 25,790,190 shares issued; and 18,203,567 and 18,264,294 shares outstanding as of June 30, 2026 and December 31, 2025, respectively 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 stockholders' equity Liabilities and Equity Total liabilities and stockholders' equity Statement [Table] Statement [Line Items] Statement Subsequent Events Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Balance at the end of the period Balance at the beginning of the period Accumulated depreciation Preferred Stock, Par or Stated Value Per Share Preferred stock, par value (in dollars per share) Preferred Stock, Shares Authorized Preferred stock, shares authorized Preferred stock, authorized capital stock (in shares) Common Stock, Par or Stated Value Per Share Common stock, par value (in dollars per share) Common Stock, Shares Authorized Common stock, shares authorized Common stock, authorized capital stock (in shares) Common Stock, Shares, Issued Common stock, shares issued Common Stock, Shares, Outstanding Balance (in shares) Balance (in shares) Common stock, shares outstanding CONDENSED CONSOLIDATED STATEMENTS OF INCOME Income Statement Revenues OPERATING REVENUES Operating revenues Operating Expenses [Abstract] OPERATING EXPENSES Represents the expenditure incurred during the period for port and canal charges, fuel expenses and commissions and brokerage. Voyage Expenses Voyage expenses Represents the expenditure incurred during the period for crew wages and related costs, the cost of insurance, expenses for repairs and maintenance, the cost of spares and consumable stores and other miscellaneous operating expenses. Vessel Operating Expenses Vessel operating expenses Depreciation Depreciation Amortization of Deferred Charges Amortization of deferred drydocking and special survey costs Amortization Amortization & write offs of deferred drydocking and special survey costs General and Administrative Expense. General and administrative expenses Operating Income (Loss) Operating income Nonoperating Income (Expense) [Abstract] OTHER INCOME/(EXPENSES): Investment Income, Interest Interest income Amount of interest expense and amortization of deferred financing costs. Interest Expense And Deferred Financing Costs Interest expense and finance costs Interest expense and finance costs Interest and finance costs Gain (Loss) on Investments Gain on investments Gain/loss on investment Investment Income, Dividend Dividend income Gain (Loss) on Extinguishment of Debt Loss on debt extinguishment Loss on debt extinguishment Loss on debt extinguishment Income (Loss) from Equity Method Investments Loss on equity investments Loss on equity investments Represents the amount associated with interest expense from executives' retirement plan, various bank charges, and commitment fees not deferred and expensed under the revolving facility. Other Finance Income (Expense), Net Other finance expenses Other Nonoperating Income (Expense) Other (expenses)/income, net Derivative, Gain (Loss) on Derivative, Net Realized loss on derivatives Nonoperating Income (Expense) Total Other Income/(Expenses), net Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Income before income taxes Net Income (Loss) Attributable to Parent Net Income Net Income Net Income for the period Earnings per Share EARNINGS PER SHARE Earnings Per Share, Basic Basic earnings per share of common stock (in $ per share) Earnings Per Share, Diluted Diluted earnings per share of common stock (in $ per share) Weighted Average Number of Shares Outstanding, Basic Basic weighted average number of common shares (in shares) Basic weighted average common shares outstanding Weighted Average Number of Shares Outstanding, Diluted Diluted weighted average number of common shares (in shares) Diluted weighted average common shares outstanding CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Other comprehensive income: Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), after Tax Prior service cost of defined benefit plan Represents the amortization of deferred realized gain or loss on cash flow hedges. Other Comprehensive Income Amortization of Realized Gain (Loss) on Cash Flow Hedges Net Amortization of deferred realized losses on cash flow hedges Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Net movement in other comprehensive loss Total Other Comprehensive Income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive Income CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY Equity Components [Axis] Equity Component [Domain] Common Stock Common Stock Additional paid-in capital Additional paid-in capital Accumulated other comprehensive loss Accumulated other comprehensive loss Retained earnings Retained earnings Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity Dividends. Dividends Stock Repurchased During Period, Value Repurchase of common stock Stock Repurchased During Period, Shares Repurchase of common stock (in shares) Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures Stock based compensation Stock Issued During Period, Value, New Issues Issuance of common stock Common Stock, Dividends, Per Share, Declared Dividend declared (in US$ per share) Dividends (in US$ per share) CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS Net Cash Provided by (Used in) Operating Activities [Abstract] Cash flows from operating activities Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net income Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income to net cash provided by operating activities Depreciation, Depletion and Amortization Depreciation Depreciation Amortization of Financing Costs Amortization of finance costs Amortization of Debt Discount (Premium) Debt discount amortization Represents the amount of prior service cost and periodic cost. Prior Service Cost And Periodic Cost Prior service cost and periodic cost Prior service cost and periodic cost Unrealized Gain (Loss) on Investments Gain on investments Represents the aggregate amount paid for drydocking and special survey costs which include planned major maintenance and overhaul activities for ongoing certification including the inspection, refurbishment and replacement of steel, engine components, electrical, pipes and valves, and other parts of the vessel. Payments for Drydocking and Special Survey Costs Payments for drydocking and special survey costs deferred Share-based Compensation Stock based compensation The amortization of deferred realized gain/loss of interest rate swaps designed to match the debt of vessels under construction that are amortized over the life of the vessels. Amortization of Deferred Realized Losses on Derivatives Deferred in Other Comprehensive Loss Amortization of deferred realized losses on interest rate swaps Increase (Decrease) in Operating Assets [Abstract] (Increase)/Decrease in: Increase (Decrease) in Accounts Receivable Accounts receivable Increase (Decrease) in Inventories Inventories Increase (Decrease) in Prepaid Expense Prepaid expenses Increase (Decrease) in Due from Related Parties, Current Due from related parties Increase (Decrease) in Other Operating Assets Other assets, current and non-current Increase (Decrease) in Operating Liabilities [Abstract] Increase/(Decrease) in: Increase (Decrease) in Accounts Payable Accounts payable Increase (Decrease) in Accrued Liabilities Accrued liabilities Increase (Decrease) in Contract with Customer, Liability Unearned revenue, current and long-term Increase (Decrease) in Other Operating Liabilities Other liabilities, current and long-term Net Cash Provided by (Used in) Operating Activities Net cash provided by operating activities Net Cash Provided by (Used in) Investing Activities [Abstract] Cash flows from investing activities The cash outflow associated with the payments for the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. Also includes the cash outflow from construction costs to date on capital projects that have not been completed and assets being constructed that are not ready to be placed into service. Advance Payments And Payments To Acquire Property Plant And Equipment And For Construction In Process Vessels additions and advances for vessels under construction and vessel acquisition Proceeds from Sale of Property, Plant, and Equipment Insurance proceeds from disposal of vessel Payments for (Proceeds from) Investments Investments Net Cash Provided by (Used in) Investing Activities Net cash used in investing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Cash flows from financing activities Proceeds from Issuance of Long-term Debt Proceeds from long-term debt, net Repayments of Long-term Debt Payments and prepayments of long-term debt Payments of long-term debt Payments of Dividends Dividends paid Payments of Financing Costs Finance costs Payments for Repurchase of Common Stock Repurchase of common stock Net Cash Provided by (Used in) Financing Activities Net cash provided by/(used in) financing activities Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Net (decrease)/increase in cash and cash equivalents Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash and cash equivalents, end of period Cash and cash equivalents, beginning of period Supplemental Cash Flow Elements [Abstract] Supplemental cash flow information Interest Paid, Net Cash paid for interest, net of amounts capitalized Basis of Presentation and General Information Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Basis of Presentation and General Information Significant Accounting Policies Significant Accounting Policies [Text Block] Significant Accounting Policies Fixed Assets, Net and Advances for Vessels Under Construction and Vessel Acquisition Property, Plant and Equipment Disclosure [Text Block] Fixed Assets, Net and Advances for Vessels Under Construction and Vessel Acquisition Deferred Charges, net Disclosure for the aggregate carrying amounts of deferred costs that are expected to be recognized as a charge against earnings during the period. Deferred Charges Disclosure [Text Block] Deferred Charges, net No definition available. Investments. Investments Other Current and Non-current Assets Other Assets Disclosure [Text Block] Other Current and Non-current Assets Accrued Liabilities Entire disclosure of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Accrued Liabilities Disclosure [Text Block] Accrued Liabilities Other Current and Long-term Liabilities Other Liabilities Disclosure [Text Block] Other Current and Long-term Liabilities Long-Term Debt, net Debt Disclosure [Text Block] Long-Term Debt, net Financial Instruments Derivatives and Fair Value [Text Block] Financial Instruments Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Commitments and Contingencies Stockholders' Equity Stockholders' Equity Note Disclosure [Text Block] Stockholders' Equity Lease Arrangements Lessor, Sales-type Leases [Text Block] Lease Arrangements Earnings Per Share [Text Block] Earnings per Share Related Party Transactions Related Party Transactions Disclosure [Text Block] Related Party Transactions Operating Revenue Revenue from Contract with Customer [Text Block] Operating Revenue Segments Segment Reporting Disclosure [Text Block] Segments Subsequent Events Subsequent Events [Text Block] Subsequent Events Tabular disclosure of vessel owned by the entity through its subsidiaries including vessels under contract and/or construction. Such vessels include container vessels. Schedule of Vessels Owned [Table Text Block] Schedule of the vessel owning companies (the "Danaos Subsidiaries") The tabular disclosure of dry bulk vessels. Schedule of Dry Bulk Vessels [Table Text Block] Schedule of Dry Bulk Vessels Property, Plant and Equipment [Table Text Block] Schedule of fixed assets, net Contractual Obligation, Fiscal Year Maturity [Table Text Block] Schedule of remaining contractual commitments of the remaining 16 vessel construction contracts Tabular disclosure of the changes in deferred costs of the entity. Schedule of Deferred Cost Activity [Table Text Block] Schedule of deferred charges, net Investment [Table Text Block] Schedule of investments under current assets and non-current assets Schedule of Other Assets [Table Text Block] Schedule of other current and non current assets Schedule of Accrued Liabilities [Table Text Block] Schedule of accrued liabilities Other Liabilities [Table Text Block] Schedule of other current and long-term liabilities Line of Credit Facility [Table] Line of Credit Facility [Line Items] Long-Term Debt, net