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be maintained under financial covenants.No definition available.false0Ratio of market value of vessels collateralizing the credit facilities, to aggregate debt outstanding (as a percent)18false 4dac_LineOfCreditFacilityCovenantConsolidatedNetLeverageRatioToPayCashDividendOrRepurchaseSharesdac_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14truefalsefalse66falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalsexbrli:pureItemTypepureRepresents the consolidated net leverage ratio for the four consecutive quarters period, required to be maintained by the entity under financial covenants to be eligible to pay cash dividends or repurchase shares of the entity's capital stock.No definition available.false0Consolidated net leverage ratio to pay cash dividends or repurchase shares19false 4dac_LineOfCreditFacilityNumberOfNewbuildingContainershipsFinanceddac_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse88falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalsexbrli:integerItemTypeintegerRepresents the number of newbuilding containerships being built by the lender, for which a credit agreement was entered into by the entity, in the form of delayed payment of a portion of the final installment for each such newbuilding.No definition available.false256Number of newbuilding containerships financed20false 4us-gaap_DebtInstrumentInterestRateStatedPercentageus-gaap_truenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsetruefalse00falsefalsefalse2falsetruefalse00falsefalsefalse3truetruefalse0.080.08falsefalsefalse4falsetruefalse00falsefalsefalse5falsetruefalse00falsefalsefalse6falsetruefalse00falsefalsefalse7falsetruefalse00falsefalsefalse8falsetruefalse00falsefalsefalse9falsetruefalse00falsefalsefalse10falsetruefalse00falsefalsefalse11falsetruefalse00falsefalsefalse12falsetruefalse00falsefalsefalse13falsetruefalse00falsefalsefalse14falsetruefalse00falsefalsefalse15falsetruefalse00falsefalsefalse16falsetruefalse00falsefalsefalsenum:percentItemTypepureInterest rate stated in the contractual debt agreement.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 false0Fixed interest rate (as a percent)21false 4dac_NumberOfConsecutiveSemiAnnualInstallmentsInCaseOfThreeNewbuildingVesselsdac_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse66falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalsexbrli:integerItemTypeintegerRepresents the number of consecutive semi-annual installments commencing in one and a half years, in case of three newbuilding vessels, in which the entity will be required to repay principal amounts.No definition available.false256Number of consecutive semi-annual installments in case of three newbuilding vessels22false 4dac_NumberOfNewbuildingVesselsForWhichPrincipalIsToBeRepaidInSixConsecutiveSemiAnnualInstallmentsdac_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse33falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalsexbrli:integerItemTypeintegerRepresents the number of newbuilding vessels for which principal is to be repaid in six consecutive semi-annual installments commencing in one and a half years after the delivery of the respective newbuilding being financed.No definition available.false256Number of newbuilding vessels for which principal is to be repaid in six consecutive semi-annual installments23false 4dac_PeriodOfCommencementOfRepaymentOfPrincipalInCaseOfThreeNewbuildingVesselsdac_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse001 year 6 monthsfalsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalsexbrli:durationItemTypenaRepresents the period of commencement of repayment of principal amounts under the financing facility, in case of three newbuilding vessels.No definition available.false0Period of commencement of repayment of principal, in case of three newbuilding vessels24false 4dac_NumberOfConsecutiveSemiAnnualInstallmentsInCaseOfFiveNewbuildingVesselsdac_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse77falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalsexbrli:integerItemTypeintegerRepresents the number of consecutive semi-annual installments commencing in one year, in case of five newbuilding vessels, in which the entity will be required to repay principal amounts.No definition available.false256Number of consecutive semi-annual installments in case of five newbuilding vessels25false 4dac_PeriodOfCommencementOfRepaymentOfPrincipalInCaseOfFiveNewbuildingVesselsdac_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse001 yearfalsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalsexbrli:durationItemTypenaRepresents the period of commencement of repayment of principal amounts under the financing facility, in case of five newbuilding vessels.No definition available.false0Period of commencement of repayment of principal, in case of five newbuilding vessels26false 4dac_NumberOfNewbuildingVesselsForWhichPrincipalIsToBeRepaidInSevenConsecutiveSemiAnnualInstallmentsdac_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse55falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalsexbrli:integerItemTypeintegerRepresents the number of newbuilding vessels for which principal is to be repaid in seven consecutive semi-annual installments commencing in one year after the delivery of the respective newbuilding being financed.No definition available.false256Number of newbuilding vessels for which principal is to be repaid in seven consecutive semi-annual installmentsfalseLong-Term Debt (Details 4) (USD $)HundredThousandsUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.danaos.com/role/DisclosureLongTermDebtDetails41626