3.10.0.1 html 117 235 1 false 54 0 false 5 false false R1.htm 000100 - Document - Document and Entity Information Sheet http://www.ocean-rig.com/role/DocumentDocumentAndEntityInformation Document and Entity Information Cover 1 false false R2.htm 000200 - Statement - Unaudited Condensed Consolidated Balance Sheets Sheet http://www.ocean-rig.com/role/UnauditedConsolidatedBalanceSheets Unaudited Condensed Consolidated Balance Sheets Statements 2 false false R3.htm 000250 - Statement - Unaudited Condensed Consolidated Balance Sheets (Parentheticals) Sheet http://www.ocean-rig.com/role/UnauditedConsolidatedBalanceSheetsParentheticals Unaudited Condensed Consolidated Balance Sheets (Parentheticals) Statements 3 false false R4.htm 000400 - Statement - Unaudited Interim Condensed Consolidated Statement of Operations Sheet http://www.ocean-rig.com/role/UnauditedInterimCondensedConsolidatedStatementsOfOperations Unaudited Interim Condensed Consolidated Statement of Operations Statements 4 false false R5.htm 000450 - Statement - Unaudited Interim Condensed Consolidated Statements of Comprehensive Income Sheet http://www.ocean-rig.com/role/StatementUnauditedInterimCondensedConsolidatedStatementsOfComprehensiveIncome Unaudited Interim Condensed Consolidated Statements of Comprehensive Income Statements 5 false false R6.htm 000600 - Statement - Unaudited Interim Condensed Consolidated Statements of Cash Flows Sheet http://www.ocean-rig.com/role/UnauditedInterimCondensedConsolidatedStatementsOfCashFlows Unaudited Interim Condensed Consolidated Statements of Cash Flows Statements 6 false false R7.htm 100100 - Disclosure - Basis of Presentation and General Information Sheet http://www.ocean-rig.com/role/BasisOfPresentationAndGeneralInformation Basis of Presentation and General Information Notes 7 false false R8.htm 100200 - Disclosure - Significant Accounting Policies Sheet http://www.ocean-rig.com/role/SignificantAccountingPolicies Significant Accounting Policies Notes 8 false false R9.htm 100210 - Disclosure - Cash and Cash Equivalents and Restricted Cash Sheet http://www.ocean-rig.com/role/CashAndCashEquivalentsAndRestrictedCash Cash and Cash Equivalents and Restricted Cash Notes 9 false false R10.htm 100300 - Disclosure - Transactions with Related Parties Sheet http://www.ocean-rig.com/role/DisclosureTransactionsWithRelatedParties Transactions with Related Parties Notes 10 false false R11.htm 100400 - Disclosure - Other Current Assets Sheet http://www.ocean-rig.com/role/OtherCurrentAssets Other Current Assets Notes 11 false false R12.htm 100500 - Disclosure - Advances for drilling units under construction and related costs Sheet http://www.ocean-rig.com/role/AdvancesForDrillshipsUnderConstructionAndRelatedCosts Advances for drilling units under construction and related costs Notes 12 false false R13.htm 100600 - Disclosure - Drilling units, machinery and equipment, net Sheet http://www.ocean-rig.com/role/DrillingRigsDrillshipsMachineryAndEquipmentNet Drilling units, machinery and equipment, net Notes 13 false false R14.htm 100800 - Disclosure - Other non-current assets Sheet http://www.ocean-rig.com/role/OtherNoncurrentAssets Other non-current assets Notes 14 false false R15.htm 100900 - Disclosure - Long-term Debt Sheet http://www.ocean-rig.com/role/LongtermDebt Long-term Debt Notes 15 false false R16.htm 101000 - Disclosure - Financial Instruments and Fair Value Measurements Sheet http://www.ocean-rig.com/role/FinancialInstrumentsAndFairValueMeasurements Financial Instruments and Fair Value Measurements Notes 16 false false R17.htm 101100 - Disclosure - Common Stock and Additional Paid-in Capital Sheet http://www.ocean-rig.com/role/CommonStockAndAdditionalPaidinCapital Common Stock and Additional Paid-in Capital Notes 17 false false R18.htm 101200 - Disclosure - Revenues Sheet http://www.ocean-rig.com/role/Revenues Revenues Notes 18 false false R19.htm 101300 - Disclosure - Interest and Finance Costs Sheet http://www.ocean-rig.com/role/InterestAndFinanceCost Interest and Finance Costs Notes 19 false false R20.htm 101400 - Disclosure - Income Taxes Sheet http://www.ocean-rig.com/role/IncomeTax Income Taxes Notes 20 false false R21.htm 101500 - Disclosure - Earnings per share Sheet http://www.ocean-rig.com/role/EarningsPerShare Earnings per share Notes 21 false false R22.htm 101700 - Disclosure - Commitments and Contingencies Sheet http://www.ocean-rig.com/role/CommitmentsAndContingencies Commitments and Contingencies Notes 22 false false R23.htm 101800 - Disclosure - Subsequent Events Sheet http://www.ocean-rig.com/role/SubsequentEvents Subsequent Events Notes 23 false false R24.htm 200000 - Disclosure - Significant Accounting Policies (Policy) Sheet http://www.ocean-rig.com/role/SignificantAccountingPoliciesPolicy Significant Accounting Policies (Policy) Policies http://www.ocean-rig.com/role/SignificantAccountingPolicies 24 false false R25.htm 300100 - Disclosure - Basis of Presentation and General Infomation (Tables) Sheet http://www.ocean-rig.com/role/BasisOfPresentationAndGeneralInfomationTables Basis of Presentation and General Infomation (Tables) Tables http://www.ocean-rig.com/role/BasisOfPresentationAndGeneralInformation 25 false false R26.htm 300210 - Disclosure - Cash and Cash Equivalents and Restricted Cash (Tables) Sheet http://www.ocean-rig.com/role/CashAndCashEquivalentsAndRestrictedCashTables Cash and Cash Equivalents and Restricted Cash (Tables) Tables http://www.ocean-rig.com/role/CashAndCashEquivalentsAndRestrictedCash 26 false false R27.htm 300300 - Disclosure - Transactions with Related Parties (Tables) Sheet http://www.ocean-rig.com/role/TransactionsWithRelatedPartiesTables Transactions with Related Parties (Tables) Tables http://www.ocean-rig.com/role/DisclosureTransactionsWithRelatedParties 27 false false R28.htm 300400 - Disclosure - Other Current Assets (Tables) Sheet http://www.ocean-rig.com/role/OtherCurrentAssetsTables Other Current Assets (Tables) Tables http://www.ocean-rig.com/role/OtherCurrentAssets 28 false false R29.htm 300500 - Disclosure - Advances for drilling units under construction and related costs (Tables) Sheet http://www.ocean-rig.com/role/AdvancesForDrillshipsUnderConstructionAndRelatedCostsTables Advances for drilling units under construction and related costs (Tables) Tables http://www.ocean-rig.com/role/AdvancesForDrillshipsUnderConstructionAndRelatedCosts 29 false false R30.htm 300600 - Disclosure - Drilling units, machinery and equipment, net (Tables) Sheet http://www.ocean-rig.com/role/DrillingRigsDrillshipsMachineryAndEquipmentNetTables Drilling units, machinery and equipment, net (Tables) Tables http://www.ocean-rig.com/role/DrillingRigsDrillshipsMachineryAndEquipmentNet 30 false false R31.htm 300800 - Disclosure - Other non-current assets (Tables) Sheet http://www.ocean-rig.com/role/OtherNoncurrentAssetsTables Other non-current assets (Tables) Tables http://www.ocean-rig.com/role/OtherNoncurrentAssets 31 false false R32.htm 300900 - Disclosure - Long-term Debt (Tables) Sheet http://www.ocean-rig.com/role/LongtermDebtTables Long-term Debt (Tables) Tables http://www.ocean-rig.com/role/LongtermDebt 32 false false R33.htm 301200 - Disclosure - Revenues (Tables) Sheet http://www.ocean-rig.com/role/RevenuesTables Revenues (Tables) Tables http://www.ocean-rig.com/role/Revenues 33 false false R34.htm 301300 - Disclosure - Interest and Finance Costs (Tables) Sheet http://www.ocean-rig.com/role/InterestAndFinanceCostTables Interest and Finance Costs (Tables) Tables http://www.ocean-rig.com/role/InterestAndFinanceCost 34 false false R35.htm 301500 - Disclosure - Earnings per share (Tables) Sheet http://www.ocean-rig.com/role/EarningsPerShareTables Earnings per share (Tables) Tables http://www.ocean-rig.com/role/EarningsPerShare 35 false false R36.htm 301700 - Disclosure - Commitments and Contingencies (Tables) Sheet http://www.ocean-rig.com/role/CommitmentsAndContingenciesTables Commitments and Contingencies (Tables) Tables http://www.ocean-rig.com/role/CommitmentsAndContingencies 36 false false R37.htm 400105 - Disclosure - Basis of Presentation and General Information - Balance Sheet of additional VIE (Table) (Details) Sheet http://www.ocean-rig.com/20180630/role/SignificantAccountingPoliciesBalanceSheetVIETableDetails Basis of Presentation and General Information - Balance Sheet of additional VIE (Table) (Details) Details 37 false false R38.htm 400120 - Disclosure - Basis of Presentation and General Information - Balance Sheet of additional VIE (Parentheticals) (Details) Sheet http://www.ocean-rig.com/20180630/role/SignificantAccountingPoliciesBalanceSheetVIEParentheticalsDetails Basis of Presentation and General Information - Balance Sheet of additional VIE (Parentheticals) (Details) Details 38 false false R39.htm 400130 - Disclosure - Basis of Presentation and General Information (Details) Sheet http://www.ocean-rig.com/20180630/role/BasisOfPresentationAndGeneralInformationDetails Basis of Presentation and General Information (Details) Details http://www.ocean-rig.com/role/BasisOfPresentationAndGeneralInfomationTables 39 false false R40.htm 400220 - Disclosure - Significant Accounting Policies (Details) Sheet http://www.ocean-rig.com/20180630/role/DisclosureSignificantAccountingPoliciesDetails Significant Accounting Policies (Details) Details http://www.ocean-rig.com/role/SignificantAccountingPoliciesPolicy 40 false false R41.htm 400280 - Disclosure - Cash and Cash Equivalents and Restricted Cash (Table) (Details) Sheet http://www.ocean-rig.com/20180630/role/CashAndCashEquivalentsAndRestrictedCashTableDetails Cash and Cash Equivalents and Restricted Cash (Table) (Details) Details http://www.ocean-rig.com/role/CashAndCashEquivalentsAndRestrictedCashTables 41 false false R42.htm 400300 - Disclosure - Transaction with Related Parties - Balance Sheet (Table) (Details) Sheet http://www.ocean-rig.com/role/DisclosureTransactionWithRelatedPartiesBalanceSheetTableDetails Transaction with Related Parties - Balance Sheet (Table) (Details) Details 42 false false R43.htm 400310 - Disclosure - Transaction with Related Parties - Statement of Operations (Table) (Details) Sheet http://www.ocean-rig.com/role/DisclosureTransactionWithRelatedPartiesStatementOfOperationsTableDetails Transaction with Related Parties - Statement of Operations (Table) (Details) Details 43 false false R44.htm 400350 - Disclosure - Transactions with Related Parties (Details) Sheet http://www.ocean-rig.com/role/DisclosureTransactionsWithRelatedPartiesGSAVividBassetAzaraDetails Transactions with Related Parties (Details) Details http://www.ocean-rig.com/role/TransactionsWithRelatedPartiesTables 44 false false R45.htm 400410 - Disclosure - Other Current Assets (Table) (Details) Sheet http://www.ocean-rig.com/role/DisclosureOtherCurrentAssetsTableDetails Other Current Assets (Table) (Details) Details http://www.ocean-rig.com/role/OtherCurrentAssetsTables 45 false false R46.htm 400510 - Disclosure - Advances for drilling units under construction and related costs (Table) (Details) Sheet http://www.ocean-rig.com/role/AdvancesForDrillshipsUnderConstructionAndRelatedCostsTableDetails Advances for drilling units under construction and related costs (Table) (Details) Details http://www.ocean-rig.com/role/AdvancesForDrillshipsUnderConstructionAndRelatedCostsTables 46 false false R47.htm 400520 - Disclosure - Advances for drilling units under construction and related costs (Details) Sheet http://www.ocean-rig.com/role/AdvancesForDrillshipsUnderConstructionAndRelatedCostsDetails Advances for drilling units under construction and related costs (Details) Details http://www.ocean-rig.com/role/AdvancesForDrillshipsUnderConstructionAndRelatedCostsTables 47 false false R48.htm 400610 - Disclosure - Drilling units, machinery and equipment, net (Table) (Details) Sheet http://www.ocean-rig.com/role/DrillingRigsDrillshipsMachineryAndEquipmentNetTableDetails Drilling units, machinery and equipment, net (Table) (Details) Details http://www.ocean-rig.com/role/DrillingRigsDrillshipsMachineryAndEquipmentNetTables 48 false false R49.htm 400612 - Disclosure - Drilling units, machinery and equipment, net (Details) Sheet http://www.ocean-rig.com/20180630/role/DrillingRigsDrillshipsMachineryAndEquipmentNetDetails Drilling units, machinery and equipment, net (Details) Details http://www.ocean-rig.com/role/DrillingRigsDrillshipsMachineryAndEquipmentNetTables 49 false false R50.htm 400710 - Disclosure - Other non-current assets (Table) (Details) Sheet http://www.ocean-rig.com/role/OtherNoncurrentAssetsTableDetails Other non-current assets (Table) (Details) Details http://www.ocean-rig.com/role/OtherNoncurrentAssetsTables 50 false false R51.htm 400810 - Disclosure - Long-term Debt (Table) (Details) Sheet http://www.ocean-rig.com/role/LongtermDebtTableDetails Long-term Debt (Table) (Details) Details http://www.ocean-rig.com/role/LongtermDebtTables 51 false false R52.htm 400850 - Disclosure - Long-term Debt - Term bank loans/ Credit facilities (Details) Sheet http://www.ocean-rig.com/role/DisclosureLongtermDebtTermBankLoansCreditFacilitiesDetails Long-term Debt - Term bank loans/ Credit facilities (Details) Details 52 false false R53.htm 400855 - Disclosure - Long-term Debt - Debt discharged during 2017 (Details) Sheet http://www.ocean-rig.com/role/DisclosureLongtermDebtSeniorNotesDetails Long-term Debt - Debt discharged during 2017 (Details) Details 53 false false R54.htm 400860 - Disclosure - Long-term Debt - Additional Information (Details) Sheet http://www.ocean-rig.com/role/LongtermDebtAdditionalInformationDetails Long-term Debt - Additional Information (Details) Details 54 false false R55.htm 400960 - Disclosure - Financial Instruments and Fair Value Measurements - Senior Notes and Credit Facilities (Details) Notes http://www.ocean-rig.com/role/DisclosureFinancialInstrumentsAndFairValueMeasurementsSeniorNotesAndCreditFacilitiesDetails Financial Instruments and Fair Value Measurements - Senior Notes and Credit Facilities (Details) Details 55 false false R56.htm 401010 - Disclosure - Common Stock and Additional Paid-in Capital - Issuance and Conversion of Class A and Class B common shares (Details) Sheet http://www.ocean-rig.com/role/CommonStockAndAdditionalPaidinCapitaIssuanceOfCommonStockAndTreasuryStockDetails Common Stock and Additional Paid-in Capital - Issuance and Conversion of Class A and Class B common shares (Details) Details 56 false false R57.htm 401020 - Disclosure - Common Stock and Additional Paid-in Capital - Stock repurchase plan (Details) Sheet http://www.ocean-rig.com/20180630/role/CommonStockAndAdditionalPaidInCapitalStockRepurchasePlanDetails Common Stock and Additional Paid-in Capital - Stock repurchase plan (Details) Details 57 false false R58.htm 401030 - Disclosure - Common Stock and Additional Paid-in Capital - Reverse stock splits (Details) Sheet http://www.ocean-rig.com/20180630/role/CommonStockAndAdditionalPaidInCapitalDividendsGeneralDetails Common Stock and Additional Paid-in Capital - Reverse stock splits (Details) Details 58 false false R59.htm 401060 - Disclosure - Common Stock and Additional Paid-in Capital - Restricted Stock Awards (Details) Sheet http://www.ocean-rig.com/role/CommonStockAndAdditionalPaidinCapitalDividendsRestrictedStockAwardsDetails Common Stock and Additional Paid-in Capital - Restricted Stock Awards (Details) Details 59 false false R60.htm 401110 - Disclosure - Revenues - Revenue segment information (Table) (Details) Sheet http://www.ocean-rig.com/20180630/role/GeographicInformationForOffshoreDrillingOperationsRevenuePerCountryTableDetails Revenues - Revenue segment information (Table) (Details) Details 60 false false R61.htm 401120 - Disclosure - Revenues - Contract Liabilities (Table) (Details) Sheet http://www.ocean-rig.com/20180630/role/RevenueContractLiabilitiesTableDetails Revenues - Contract Liabilities (Table) (Details) Details 61 false false R62.htm 401130 - Disclosure - Revenues - Significant changes in Contract Liabilities (Table) (Details) Sheet http://www.ocean-rig.com/20180630/role/RevenuesChangesInContractLiabilitiesTableDetails Revenues - Significant changes in Contract Liabilities (Table) (Details) Details 62 false false R63.htm 401140 - Disclosure - Revenues - Future Amortization of Contract Liabilities and Deferred Costs (Table) (Details) Sheet http://www.ocean-rig.com/20180630/role/RevenuesFutureAmortizationOfContractLiabilitiesAndDeferredCostsTableDetails Revenues - Future Amortization of Contract Liabilities and Deferred Costs (Table) (Details) Details 63 false false R64.htm 401160 - Disclosure - Revenues - Deferred Contract Costs (Details) Sheet http://www.ocean-rig.com/20180630/role/RevenuesDeferredContractCostsDetails Revenues - Deferred Contract Costs (Details) Details 64 false false R65.htm 401210 - Disclosure - Interest and Finance Costs (Table) (Details) Sheet http://www.ocean-rig.com/role/InterestAndFinanceCostsTableDetails Interest and Finance Costs (Table) (Details) Details http://www.ocean-rig.com/role/InterestAndFinanceCostTables 65 false false R66.htm 401410 - Disclosure - Earnings per share (Table) (Details) Sheet http://www.ocean-rig.com/role/EarningsPerShareTableDetails Earnings per share (Table) (Details) Details http://www.ocean-rig.com/role/EarningsPerShareTables 66 false false R67.htm 401605 - Disclosure - Commitments and Contingencies - Purchase Obligations (Table) (Details) Sheet http://www.ocean-rig.com/role/CommitmentsAndContingenciesPurchaseObligationsTableDetails Commitments and Contingencies - Purchase Obligations (Table) (Details) Details 67 false false R68.htm 401610 - Disclosure - Commitments and Contingencies - Legal proceedings (Details) Sheet http://www.ocean-rig.com/role/CommitmentsAndContingenciesLegalProceedingsDetails Commitments and Contingencies - Legal proceedings (Details) Details 68 false false R69.htm 401720 - Disclosure - Subsequent Events (Details) Sheet http://www.ocean-rig.com/role/SubsequentEventsLoanFacilityDetails Subsequent Events (Details) Details http://www.ocean-rig.com/role/SubsequentEvents 69 false false All Reports Book All Reports orig-20180630.xml orig-20180630.xsd orig-20180630_cal.xml orig-20180630_def.xml orig-20180630_lab.xml orig-20180630_pre.xml http://xbrl.sec.gov/dei/2018-01-31 http://fasb.org/us-gaap/2018-01-31 http://xbrl.sec.gov/country/2017-01-31 http://fasb.org/srt/2018-01-31 true true