2.2.0.25truefalse0614 - Disclosure - Commitments and Contingencies (Details)truefalsefalse1falsefalseUSDfalsefalse11/1/2010 - 11/30/2010 USD ($) $OneMonthEnded_30Nov2010http://www.sec.gov/CIK0001458891duration2010-11-01T00:00:002010-11-30T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$2falsefalsefalsefalse8/1/2003 - 8/31/2003 OneMonthEnded_31Aug2003http://www.sec.gov/CIK0001458891duration2003-08-01T00:00:002003-08-31T00:00:00PureStandardhttp://www.xbrl.org/2003/instancepurexbrli03falsefalseUSDfalsefalse1/1/2011 - 2/28/2011 USD ($) $TwoMonthsEnded_28Feb2011http://www.sec.gov/CIK0001458891duration2011-01-01T00:00:002011-02-28T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0PureStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDUSD$4falsefalseUSDfalsefalse1/1/2010 - 12/31/2010 USD ($) USD ($) / shares $TwelveMonthsEnded_31Dec2010http://www.sec.gov/CIK0001458891duration2010-01-01T00:00:002010-12-31T00:00:00PureStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDEPSDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDUSD$5falsefalseUSDfalsefalse1/31/2011 USD ($) $BalanceAsOf_31Jan2011http://www.sec.gov/CIK0001458891instant2011-01-31T00:00:000001-01-01T00:00:00PureStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$6falsefalseUSDtruefalse{us-gaap_LossContingenciesByNatureOfContingencyAxis} : Range, High [Member] 12/31/2010 USD ($) $BalanceAsOf_31Dec2010_Upper_Range_Memberhttp://www.sec.gov/CIK0001458891instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseRange, High [Member]us-gaap_LossContingenciesByNatureOfContingencyAxisxbrldihttp://xbrl.org/2006/xbrldine_UpperRangeMemberus-gaap_LossContingenciesByNatureOfContingencyAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$7falsefalseUSDtruefalse{us-gaap_LossContingenciesByNatureOfContingencyAxis} : Range, Low [Member] 12/31/2010 USD ($) $BalanceAsOf_31Dec2010_Lower_Range_Memberhttp://www.sec.gov/CIK0001458891instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseRange, Low [Member]us-gaap_LossContingenciesByNatureOfContingencyAxisxbrldihttp://xbrl.org/2006/xbrldine_LowerRangeMemberus-gaap_LossContingenciesByNatureOfContingencyAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$8falsefalseUSDtruefalse{us-gaap_LossContingenciesByNatureOfContingencyAxis} : Indian Customs, Show Cause Notice [Member] 12/31/2010 USD ($) $BalanceAsOf_31Dec2010_Indian_Customs_Show_Cause_Notice_Memberhttp://www.sec.gov/CIK0001458891instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseIndian Customs, Show Cause Notice [Member]us-gaap_LossContingenciesByNatureOfContingencyAxisxbrldihttp://xbrl.org/2006/xbrldine_IndianCustomsShowCauseNoticeMemberus-gaap_LossContingenciesByNatureOfContingencyAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$9falsefalseINRtruefalse{us-gaap_LossContingenciesByNatureOfContingencyAxis} : Indian Customs, Show Cause Notice [Member] 12/31/2010 INR (₨) ₨BalanceAsOf_31Dec2010_Indian_Customs_Show_Cause_Notice_Memberhttp://www.sec.gov/CIK0001458891instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseIndian Customs, Show Cause Notice [Member]us-gaap_LossContingenciesByNatureOfContingencyAxisxbrldihttp://xbrl.org/2006/xbrldine_IndianCustomsShowCauseNoticeMemberus-gaap_LossContingenciesByNatureOfContingencyAxisexplicitMemberINRStandardhttp://www.xbrl.org/2003/iso4217INRiso42170INRINR₨10falsefalseUSDtruefalse{us-gaap_LossContingenciesByNatureOfContingencyAxis} : 1997 Alleged Import [Member] 1/1/2010 - 12/31/2010 USD ($) $TwelveMonthsEnded_31Dec2010_Alleged_Import_One_Memberhttp://www.sec.gov/CIK0001458891duration2010-01-01T00:00:002010-12-31T00:00:00falsefalse1997 Alleged Import [Member]us-gaap_LossContingenciesByNatureOfContingencyAxisxbrldihttp://xbrl.org/2006/xbrldine_AllegedImportOneMemberus-gaap_LossContingenciesByNatureOfContingencyAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$11falsefalseUSDtruefalse{us-gaap_LossContingenciesByNatureOfContingencyAxis} : 1999 Alleged Import [Member] 1/1/2010 - 12/31/2010 USD ($) $TwelveMonthsEnded_31Dec2010_Alleged_Import_Two_Memberhttp://www.sec.gov/CIK0001458891duration2010-01-01T00:00:002010-12-31T00:00:00falsefalse1999 Alleged Import [Member]us-gaap_LossContingenciesByNatureOfContingencyAxisxbrldihttp://xbrl.org/2006/xbrldine_AllegedImportTwoMemberus-gaap_LossContingenciesByNatureOfContingencyAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$4true0us-gaap_LossContingenciesLineItemsus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalseOtherxbrli:stringItemTypestringLine items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.falsefalseLoss Contingencies [Line Items]5false0us-gaap_GuaranteeObligationsMaximumExposureus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8truefalsefalse30000003000000falsetruefalsetruefalse9truefalsefalse150000000150000000falsetruefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryMaximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 45 -Paragraph 13 -Subparagraph b falsefalseBank guarantee in connection with the export of the 'Rig'6false0ne_CustomsBondnefalsedebitinstantCustoms Bond.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8truefalsefalse2200000022000000falsefalsefalsetruefalse9truefalsefalse970000000970000000falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryCustoms Bond.No authoritative reference available.falsefalseCustoms bond In connection with the export of the 'Rig'7false0ne_CustomsDutynefalsedebitdurationCustoms Duty.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10truefalsefalse1900000019000000falsefalsefalsetruefalse11truefalsefalse2200000022000000falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryCustoms Duty.No authoritative reference available.falsefalseDuty imposed, subsequently overturned8false0us-gaap_IncomeTaxExaminationRangeOfPossibleLossesus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6truefalsefalse1800000018000000falsefalsefalsetruefalse7truefalsefalse1600000016000000falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryThe estimated range of reasonably possible losses resulting from an adverse position taken by a taxing authority.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 14 -Paragraph 3 falsefalseAudit claims, additional attributable to other business tax returns9true0ne_CommitmentsAndContingenciesTextualsAbstractnefalsenadurationCommitments and Contingencies Textuals.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalseOtherxbrli:stringItemTypestringCommitments and Contingencies Textuals.falsefalseCommitments and Contingencies (Textuals)10false0ne_NumberOfPartiesServedShowCauseNoticenefalsenadurationNumber of parties served Show Cause Noticefalsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2truefalsefalse2121falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalseOtherxbrli:integerItemTypeintegerNumber of parties served Show Cause NoticeNo authoritative reference available.falsefalseNumber of parties served Show Cause Notice11false0ne_CustomsPenaltynefalsedebitdurationCustoms Penalty.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4truefalsefalse500000500000falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryCustoms Penalty.No authoritative reference available.falsefalsePenalty, subsequently overturned12false0ne_OperatingDayratenefalsenadurationOperating Dayrate.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4truefalsefalse538000538000falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryOperating Dayrate.No authoritative reference available.falsefalseOperating dayrate in Libya (per day)13false0ne_PercentSurchargeOnContractAmountsUnderContractPerformednefalsenadurationPercent surcharge on contract amounts under contract performed by "vessels".falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsetruefalse00falsefalsefalsefalsefalse2falsetruefalse00falsefalsefalsefalsefalse3falsetruefalse00falsefalsefalsefalsefalse4truetruefalse0.020.02falsefalsefalsefalsefalse5falsetruefalse00falsefalsefalsefalsefalse6falsetruefalse00falsefalsefalsetruefalse7falsetruefalse00falsefalsefalsetruefalse8falsetruefalse00falsefalsefalsetruefalse9falsetruefalse00falsefalsefalsetruefalse10falsetruefalse00falsefalsefalsetruefalse11falsetruefalse00falsefalsefalsetruefalseOtherus-types:percentItemTypepurePercent surcharge on contract amounts under contract performed by "vessels".No authoritative reference available.falsefalseNIMASA surcharge on contracts performed by "vessels" in Nigerian coastal shipping trade; overturned and dismissed by Federal High Court of Nigeria14false0ne_PercentageOfUncertainTaxPositionsLikelihoodOfBeingSustainednefalsenadurationPercentage Of Uncertain Tax Positions Likelihood Of Being Sustained.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsetruefalse00falsefalsefalsefalsefalse2falsetruefalse00falsefalsefalsefalsefalse3falsetruefalse00falsefalsefalsefalsefalse4truetruefalse0.500.50falsefalsefalsefalsefalse5falsetruefalse00falsefalsefalsefalsefalse6falsetruefalse00falsefalsefalsetruefalse7falsetruefalse00falsefalsefalsetruefalse8falsetruefalse00falsefalsefalsetruefalse9falsetruefalse00falsefalsefalsetruefalse10falsetruefalse00falsefalsefalsetruefalse11falsetruefalse00falsefalsefalsetruefalseOtherus-types:percentItemTypepurePercentage Of Uncertain Tax Positions Likelihood Of Being Sustained.No authoritative reference available.falsefalsePercentage of uncertain tax positions likelihood of being sustained15false0ne_TaxAuditClaimsAssessednefalsedebitdurationTax Audit Claims Assessed.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4truefalsefalse305000000305000000falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryTax Audit Claims Assessed.No authoritative reference available.falsefalseNon-U.S. tax audit claims (including interest and penalties), primarily in Mexico16false0ne_LikelihoodOfAdditionalTaxesToBeIncurredOnAuditFindingsPercentagenefalsenadurationLikelihood Of Additional Taxes To Be Incurred On Audit Findings, Percentage.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsetruefalse00falsefalsefalsefalsefalse2falsetruefalse00falsefalsefalsefalsefalse3falsetruefalse00falsefalsefalsefalsefalse4truetruefalse0.500.50falsefalsefalsefalsefalse5falsetruefalse00falsefalsefalsefalsefalse6falsetruefalse00falsefalsefalsetruefalse7falsetruefalse00falsefalsefalsetruefalse8falsetruefalse00falsefalsefalsetruefalse9falsetruefalse00falsefalsefalsetruefalse10falsetruefalse00falsefalsefalsetruefalse11falsetruefalse00falsefalsefalsetruefalseOtherus-types:percentItemTypepureLikelihood Of Additional Taxes To Be Incurred On Audit Findings, Percentage.No authoritative reference available.falsefalseLikelihood of additional taxes to be incurred on audit findings, percentage17false0ne_NumberOfLawsuitsnefalsenadurationApproximate number of lawsuit.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4truefalsefalse3636falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalseOtherxbrli:integerItemTypeintegerApproximate number of lawsuit.No authoritative reference available.falsefalseApproximate number of lawsuits18false0ne_PhysicalDamageDeductiblesPerOccurrenceForJackupsAndSubmersiblesInMexicanGulfOfMexiconefalsedebitdurationPhysical Damage Deductibles Per Occurrence For Jackups And Submersibles In Mexican Gulf Of Mexico.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4truefalsefalse2500000025000000falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryPhysical Damage Deductibles Per Occurrence For Jackups And Submersibles In Mexican Gulf Of Mexico.No authoritative reference available.falsefalsePhysical damage deductible per occurrence for rigs located in the U.S., Mexico, Brazil,19false0ne_PhysicalDamageDeductiblesPerOccurrenceForSemiSubmersiblesAndDrillshipsInMexicanGulfOfMexiconefalsedebitdurationPhysical Damage Deductibles Per Occurrence For Semi Submersibles And Drillships In Mexican Gulf Of Mexico.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4truefalsefalse1500000015000000falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryPhysical Damage Deductibles Per Occurrence For Semi Submersibles And Drillships In Mexican Gulf Of Mexico.No authoritative reference available.falsefalsePhysical damage deductibles occurrence for rigs operating in West Africa, the Middle East, India, and the Mediterranean Sea20false0ne_LossOfHireCoverageAppliesOnlyToRigsOperatingUnderDayratenefalsedebitdurationLoss of hire coverage applies only to 'rigs' operating under dayrate equal to or greater than the given amount.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4truefalsefalse200000200000falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryLoss of hire coverage applies only to 'rigs' operating under dayrate equal to or greater than the given amount.No authoritative reference available.falsefalseLoss of hire coverage applies only to 'rigs' operating under dayrate21false0ne_WaitingPeriodnefalsenadurationWaiting period.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4truefalsefalse4545falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalseOtherxbrli:integerItemTypeintegerWaiting period.No authoritative reference available.falsefalseNumber of days waiting period22false0ne_ProtectionAndIndemnityPolicyStandardDeductiblenefalsedebitdurationProtection and indemnity policy, standard deductible.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4truefalsefalse1000000010000000falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryProtection and indemnity policy, standard deductible.No authoritative reference available.falsefalseProtection and indemnity policy, standard deductible (per occurrence)23false0ne_MaximumLiabilityCoverageUnderProtectionAndIndemnityPolicynefalsedebitdurationMaximum liability coverage under protection and indemnity policy.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4truefalsefalse750000000750000000falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryMaximum liability coverage under protection and indemnity policy.No authoritative reference available.falsefalseMaximum liability coverage under protection and indemnity policy24false0us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmountus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4truefalsefalse15000000001500000000falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryThe amount of the fixed and determinable portion of an unrecorded unconditional purchase obligation as of the balance sheet date.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 47 -Paragraph 7 -Subparagraph b falsefalseOutstanding commitments including shipyard and purchase commitments25false0us-gaap_LongTermPurchaseCommitmentAmountus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3truefalsefalse10000000001000000000falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryThe minimum amount the entity agreed to spend under the long-term purchase commitment.No authoritative reference available.falsefalseCommitments for construction of two additional newbuild drillsihps26false0ne_SubsequentEventDrillshipConstructionnefalsenainstantSubsequent event drillship construction.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalse5truefalsefalse22falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalseOtherxbrli:integerItemTypeintegerSubsequent event drillship construction.No authoritative reference available.falsefalseNumber of new build drillships to be constructed27false0ne_AmountOfCancelledShipyardContractsnefalsenadurationAmount of cancelled shipyard contractsfalsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3truefalsefalse7700000077000000falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryAmount of cancelled shipyard contractsNo authoritative reference available.falsefalseAmount of cancelled shipyard contracts28false0ne_YearsOfEffectivenessOfEmploymentAgreementsAfterTerminationOfEmploymentnefalsenadurationYears of effectiveness of employment agreements after the termination of employment.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4truefalsefalse33falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalseOtherxbrli:integerItemTypeintegerYears of effectiveness of employment agreements after the termination of employment.No authoritative reference available.falsefalseYears of effectiveness of employment agreements after the termination of employment29false0us-gaap_PaymentsForLegalSettlementsus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4truefalsefalse25000002500000falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryThe amount of cash paid for the settlement of litigation or for other legal issues during the period.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 27 falsefalsePayment by subsidiary to resolve all charges of Nigerian government30false0us-gaap_LitigationSettlementGrossus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse26000002600000falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryThis element represents the gross amount awarded, to be received by, or to be remitted to the entity in settlement of litigation occurring during the period.No authoritative reference available.falsefalsePayment of fine as per non-prosecution agreement with the DOJ31false0ne_DisgorgeProfitPursuantToAgreedJudgmentnefalsedebitdurationDisgorge profit pursuant to the agreed judgment.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse43000004300000falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryDisgorge profit pursuant to the agreed judgment.No authoritative reference available.falsefalseDisgorge profit pursuant to the agreed judgment32false0ne_PrejudgmentInterestnefalsedebitdurationPrejudgment interest.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse13000001300000falsetruefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryPrejudgment interest.No authoritative reference available.falsefalsePrejudgment interest33false0ne_ExpiredTemporaryImportPermitsForJackupRigsOffshoreNigerianefalsenadurationExpired temporary Import Permits For Jackup Rigs Offshore Nigeria.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4truefalsefalse11falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalseOtherxbrli:integerItemTypeintegerExpired temporary Import Permits For Jackup Rigs Offshore Nigeria.No authoritative reference available.falsefalseExpired temporary import permits for jackup rigs offshore of Nigeria, new applications pending1130Commitments and Contingencies (Details)NoRoundingUnKnownUnKnownUnKnowntruetrue