Vantage Drilling 10-Q 31 Oct 14 2014 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 30, 2014	Oct. 23, 2014
Document And Entity Information [Abstract]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	30-Sep-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q3	'
Trading Symbol	'VTG	'
Entity Registrant Name	'Vantage Drilling CO	'
Entity Central Index Key	'0001419428	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	307,792,075

Consolidated_Balance_Sheet

Consolidated Balance Sheet (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Current assets	'	'
Cash and cash equivalents	$81,315	$54,686
Restricted cash	'	2,125
Trade receivables	224,572	168,654
Inventory	64,485	55,804
Prepaid expenses and other current assets	15,821	23,717
Total current assets	386,193	304,986
Property and equipment	'	'
Property and equipment	3,509,267	3,472,407
Accumulated depreciation	-376,280	-281,759
Property and equipment, net	3,132,987	3,190,648
Other assets	'	'
Investment in joint venture	1,571	32,482
Other assets	83,083	100,027
Total other assets	84,654	132,509
Total assets	3,603,834	3,628,143
Current liabilities	'	'
Accounts payable	57,848	65,115
Accrued liabilities	131,168	96,382
Current maturities of long-term debt and revolving credit agreement	53,500	63,500
Total current liabilities	242,516	224,997
Long–term debt, net of discount of $30,253 and $39,325	2,731,970	2,852,050
Other long-term liabilities	87,966	45,640
Commitments and contingencies	'	'
Shareholders’ equity	'	'
Preferred shares, $0.001 par value, 10,000 shares authorized; none issued or outstanding	'	'
Ordinary shares, $0.001 par value, 500,000 shares authorized; 307,732 and 304,101 shares issued and outstanding	308	304
Additional paid-in capital	903,464	896,928
Accumulated deficit	-362,390	-391,776
Total shareholders’ equity	541,382	505,456
Total liabilities and shareholders’ equity	$3,603,834	$3,628,143

Consolidated_Balance_Sheet_Par

Consolidated Balance Sheet (Parenthetical) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, except Per Share data, unless otherwise specified
Statement Of Financial Position [Abstract]	'	'
Long-term debt, discount	$30,253	$39,325
Preferred shares, par value	$0.00	$0.00
Preferred shares, shares authorized	10,000	10,000
Preferred shares, shares issued	0	0
Preferred shares, shares outstanding	0	0
Ordinary shares, par value	$0.00	$0.00
Ordinary shares, shares authorized	500,000	500,000
Ordinary shares, shares issued	307,732	304,101
Ordinary shares, shares outstanding	307,732	304,101

Consolidated_Statement_of_Oper

Consolidated Statement of Operations (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Revenue	'	'	'	'
Contract drilling services	$189,648	$158,887	$602,859	$449,354
Management fees	1,923	3,903	12,474	9,511
Reimbursables	15,947	13,095	44,368	34,658
Total revenue	207,518	175,885	659,701	493,523
Operating costs and expenses	'	'	'	'
Operating costs	111,271	84,132	310,995	236,566
General and administrative	9,980	8,891	26,461	23,372
Depreciation	31,639	24,886	94,894	74,727
Total operating costs and expenses	152,890	117,909	432,350	334,665
Income from operations	54,628	57,976	227,351	158,858
Other income (expense)	'	'	'	'
Interest income	14	26	38	195
Interest expense and other financing charges	-53,376	-47,379	-162,149	-158,296
Gain (loss) on debt extinguishment	1,051	'	-462	-98,327
Other, net	376	305	616	2,195
Total other income (expense)	-51,935	-47,048	-161,957	-254,233
Income (loss) before income taxes	2,693	10,928	65,394	-95,375
Income tax provision	8,309	4,084	36,008	16,766
Net income (loss)	($5,616)	$6,844	$29,386	($112,141)
Earnings (loss) per share	'	'	'	'
Basic	($0.02)	$0.02	$0.10	($0.37)
Diluted	($0.02)	$0.02	$0.10	($0.37)

Consolidated_Statement_of_Cash

Consolidated Statement of Cash Flows (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
CASH FLOWS FROM OPERATING ACTIVITIES	'	'
Net income (loss)	$29,386	($112,141)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:	'	'
Depreciation expense	94,894	74,727
Amortization of debt financing costs	8,713	9,425
Amortization of debt discount	8,496	4,605
Non-cash loss on debt extinguishment	462	6,070
Share-based compensation expense	6,540	5,431
Deferred income tax expense (benefit)	-184	858
Equity in loss of joint venture	317	345
Loss on disposal of assets	558	114
Changes in operating assets and liabilities:	'	'
Restricted cash	2,125	162
Trade receivables	-55,917	-25,463
Inventory	-8,681	-15,146
Prepaid expenses and other current assets	7,686	11,709
Other assets	6,660	-6,866
Accounts payable	-7,267	5,715
Accrued liabilities and other long-term liabilities	81,194	-25,146
Net cash provided by (used in) operating activities	174,982	-65,601
CASH FLOWS FROM INVESTING ACTIVITIES	'	'
Additions to property and equipment	-34,137	-548,621
Return of investment in joint venture	23,250	'
Proceeds from sale of property and equipment	'	2
Net cash used in investing activities	-10,887	-548,619
CASH FLOWS FROM FINANCING ACTIVITIES	'	'
Proceeds from issuance of senior secured notes, net	'	775,000
Proceeds from issuance of term loan, net	'	344,750
Proceeds from the issuance of senior convertible notes	'	100,000
Repayment of long-term debt	-127,466	-1,020,499
Proceeds from (repayment of) revolving credit agreement, net	-10,000	10,000
Debt issuance costs	'	-30,028
Net cash provided by (used in) financing activities	-137,466	179,223
Net increase (decrease) in cash and cash equivalents	26,629	-434,997
Cash and cash equivalents—beginning of period	54,686	502,726
Cash and cash equivalents—end of period	81,315	67,729
Cash paid for:	'	'
Interest	115,142	164,955
Taxes	17,415	15,478
Non-cash investing and financing transactions:	'	'
Interest capitalized	-3,759	-17,592
Trade-in value on equipment upgrades	-922	'
Discount on repurchase of senior notes	-1,685	'
Fair value of embedded conversion option of Convertible Notes	'	11,732
Write-off of joint venture deferred construction supervision revenue	$7,344	'

Organization_and_Recent_Events

Organization and Recent Events	9 Months Ended
	Sep. 30, 2014
Organization Consolidation And Presentation Of Financial Statements [Abstract]	'
Organization and Recent Events	'
	1. Organization and Recent Events
	Vantage Drilling Company is a holding company organized under the laws of the Cayman Islands on November 14, 2007 with no significant operations or assets, other than its interests in its subsidiaries. Through our direct and indirect subsidiaries, Vantage Drilling Company is an international offshore drilling contractor for the oil and gas industry focused on operating a fleet of modern, high-specification mobile offshore drilling units (“MODUs”). Our operating fleet currently consists of four ultra-premium jackup rigs and three ultra-deepwater drillships. Our global fleet is currently located in India, Southeast Asia and West Africa.
	In the first nine months of 2014, we repurchased in the open market $40.0 million of our 7.125% Senior Secured Notes (the “7.125% Senior Notes”) and $7.0 million of our 7.5% Senior Secured First Lien Notes (the “7.5% Senior Notes”).  In June 2014, we made an additional principal payment of $42.0 million on our $500 million Term Loan (the “2017 Term Loan”). In October 2014, we repurchased in the open market $5.0 million of our 7.125% Senior Notes, $12.4 million of our 7.5% Senior Notes and $13.4 million of our 7.875% Senior Convertible Notes (the “7.875% Convertible Notes”).

Basis_of_Presentation_and_Sign

Basis of Presentation and Significant Accounting Policies	9 Months Ended
	Sep. 30, 2014
Accounting Policies [Abstract]	'
Basis of Presentation and Significant Accounting Policies	'
	2. Basis of Presentation and Significant Accounting Policies
	Basis of Consolidation: The accompanying interim consolidated financial information as of September 30, 2014 and for the three and nine months ended September 30, 2014 and 2013 has been prepared without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”) and includes our accounts and those of our majority owned subsidiaries. All significant intercompany transactions and accounts have been eliminated. They reflect all adjustments which are, in the opinion of management, necessary for a fair presentation of the financial position and results of operations for the interim periods, on a basis consistent with the annual audited financial statements. Certain information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”) have been condensed or omitted pursuant to such rules and regulations, although we believe that the disclosures made are adequate to provide for fair presentation. The balance sheet at December 31, 2013 is derived from our December 31, 2013 audited financial statements. These interim financial statements should be read in conjunction with the financial statements and the notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2013. The results of operations for the interim periods are not necessarily indicative of the operating results for the full fiscal year or any future periods. Certain previously reported amounts have been reclassified to conform to the current period presentation.
	Cash and Cash Equivalents: Includes deposits with financial institutions as well as short-term money market instruments with maturities of three months or less when purchased.
	Restricted Cash: Consists of cash and cash equivalents established as debt reserves and posted as collateral for bid tenders and performance bonds.
	Inventory: Consists of materials, spare parts, consumables and related supplies for our drilling rigs and is carried at the lower of average cost or market.
	Property and Equipment: Consists of the costs of our drilling rigs, furniture and fixtures, computer equipment and capitalized costs for computer software. Drilling rigs are depreciated on a component basis over estimated useful lives ranging from five to thirty-five years on a straight-line basis as of the date placed in service. Other assets are depreciated upon placement in service over estimated useful lives ranging from three to seven years on a straight-line basis. When assets are sold, retired or otherwise disposed of, the cost and related accumulated depreciation are removed from the accounts and the gain or loss is recognized.
	Interest costs and the amortization of debt financing costs related to the financings of our MODUs are capitalized as part of the cost while they are under construction and prior to the commencement of each vessel’s first contract. Total interest and amortization costs capitalized for assets under construction for the three and nine months ended September 30, 2014 were $1.3 million and $3.8 million, respectively. Total interest and amortization costs capitalized for assets under construction for the three and nine months ended September 30, 2013 were $9.5 million and $15.9 million, respectively. We evaluate the realization of property and equipment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. An impairment loss on our property and equipment exists when estimated undiscounted cash flows expected to result from the use of the asset and its eventual disposition are less than its carrying amount. Any impairment loss recognized would represent the excess of the asset’s carrying value over the estimated fair value.
	Debt Financing Costs: Costs incurred with debt financings are deferred and amortized over the term of the related financing facility on a straight line basis which approximates the interest method.
	Investment in Joint Venture: In November 2012, we acquired 41.9% of Sigma Drilling, Ltd. (“Sigma”), which had contracted to build an ultra-deepwater drillship, to be known as the Palladium Explorer, at STX Offshore & Shipbuilding Co. Ltd.’s (“STX”) shipyard in Korea. We are currently accounting for our interest in Sigma as an equity method investment. Accordingly, we recognize 41.9% of the profit or loss of Sigma as other income (expense) in our consolidated statement of operations with a corresponding adjustment to our investment in joint venture account. We capitalized interest on our investment in Sigma until September 2013 when STX suspended construction of the drillship. In January 2014, Sigma issued a termination notice to STX on the Palladium Explorer construction contract and Sigma terminated our construction management agreement. In July 2014, a reduction in Sigma’s capital was approved by the appropriate authorities and in August 2014, a distribution of $55.5 million was made to the remaining shareholders of Sigma, of which we received $23.3 million. See “Note 4. Construction Supervision and Operations Management Agreements.” During the three and nine-month periods ended September 30, 2014 and 2013, Sigma recognized losses from operations consisting primarily of general administrative expenses.
	The change in our investment in joint venture account was composed of the following (in thousands):
	Balance, December 31, 2013		$	32,482
	Return of investment			(23,250	)
	Write-off of deferred construction supervision revenue			(7,344	)
	Vantage share of net losses			(317	)
	Balance, September 30, 2014		$	1,571
	Revenue: Revenue is recognized as services are performed based on contracted dayrates and the number of operating days during the period.
	In connection with a customer contract, we may receive lump-sum fees for the mobilization of equipment and personnel or the demobilization of equipment and personnel upon completion. Mobilization fees received and costs incurred to mobilize a rig from one geographic market to another are deferred and recognized on a straight-line basis over the term of such contract, excluding any option periods. Costs incurred to mobilize a rig without a contract are expensed as incurred. Fees or lump-sum payments received for capital improvements to rigs are deferred and amortized to income over the term of the related drilling contract. The costs of such capital improvements are capitalized and depreciated over the useful lives of the assets. Upon completion of drilling contracts, any demobilization fees received are recorded as revenue. We record reimbursements from customers for rebillable costs and expenses as revenue and the related direct costs as operating expenses.
	Rig and Equipment Certifications: We are required to obtain regulatory certifications to operate our drilling rigs and certain specified equipment and must maintain such certifications through periodic inspections and surveys. The costs associated with these certifications, including drydock costs, are deferred and amortized over the corresponding certification periods.
	Income Taxes: Income taxes are provided for based upon the tax laws and rates in effect in the countries in which operations are conducted and income is earned. Deferred income tax assets and liabilities are computed for differences between the financial statement basis and tax basis of assets and liabilities that will result in future taxable or deductible amounts and are based on enacted tax laws and rates applicable to the periods in which the differences are expected to affect taxable income. Valuation allowances are established when necessary to reduce deferred income tax assets to the amount expected to be realized. We recognize interest and penalties related to income taxes as a component of income tax expense.
	Earnings per Share: Basic earnings (loss) per share are based on the weighted average number of ordinary shares outstanding during the applicable period. Diluted earnings (loss) per share are computed based on the weighted average number of ordinary shares and ordinary share equivalents outstanding in the applicable period, as if all potentially dilutive securities were converted into ordinary shares (using the treasury stock method).
	The following is a reconciliation of the number of shares used for the basic and diluted earnings (loss) per share (“EPS”) computations:
				Three Months Ended September 30,				Nine Months Ended September 30,
				2014		2013		2014		2013
				(In thousands)
	Weighted average ordinary shares outstanding for basic EPS				306,761		302,682		306,046		301,962
		Options and warrants			-		-		-		-
		Convertible notes			-		-		-		-
	Adjusted weighted average ordinary shares outstanding for diluted EPS				306,761		302,682		306,046		301,962
	The following is a reconciliation of the number of shares excluded from diluted EPS computations:
				Three Months Ended September 30,				Nine Months Ended September 30,
				2014		2013		2014		2013
				(In thousands)
	Options and warrants				2,097		2,469		2,097		2,469
	Convertible notes				77,561		79,059		77,561		79,059
	Future potentially dilutive ordinary shares excluded from diluted EPS				79,658		81,528		79,658		81,528
	The warrants and share options are anti-dilutive as the exercise or conversion price of such securities exceeded the average market price of our shares for the applicable periods. The ordinary shares issuable for the convertible notes, if converted, are excluded as the effect of including convertible debt and the related adjustments to income under the “if-converted” method of computing diluted earnings per share is anti-dilutive for the applicable periods.
	Concentration of Credit Risk: Financial instruments that potentially subject us to a significant concentration of credit risk consist primarily of cash and cash equivalents, restricted cash and accounts receivable. We maintain deposits in federally insured financial institutions in excess of federally insured limits. We monitor the credit ratings and our concentration of risk with these financial institutions on a continuing basis to safeguard our cash deposits. Some of our restricted cash is invested in certificates of deposit. We have a limited number of key customers, who are primarily large international oil and gas operators, national oil companies and other international oil and gas companies. Our contracts provide for monthly billings as services are performed and we monitor compliance with contract payment terms on an ongoing basis. Outstanding receivables beyond payment terms are promptly investigated and discussed with the specific customer. We did not have an allowance for doubtful accounts as of September 30, 2014 or December 31, 2013.
	Share-Based Compensation: We account for share-based compensation using the fair value method as prescribed under U.S. GAAP. Restricted share grants are valued based on the market price of our ordinary shares on the date of grant and the fair value attributable to share options is calculated based on the Black-Scholes option pricing model. The fair values are amortized to expense over the requisite service period which is generally equivalent to the time required to vest the share options and share grants. We recognized approximately $2.3 million and $1.8 million of share-based compensation expense for the three months ended September 30, 2014 and 2013, respectively. For the nine months ended September 30, 2014 and 2013, we recognized approximately $6.5 million and $5.4 million, respectively, of share-based compensation expense.
	Use of Estimates: The preparation of financial statements in accordance with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. While management believes current estimates are appropriate and reasonable, actual results could differ from those estimates.
	Fair Value of Financial Instruments: The fair value of our short-term financial assets and liabilities approximates the carrying amounts represented in the balance sheet principally due to the short-term nature or floating rate nature of these instruments. At September 30, 2014, the fair value of the 5.50% Convertible Senior Notes (the “5.50% Convertible Notes”), 7.125% Senior Notes, the 7.5% Senior Notes and the 7.875% Convertible Notes was approximately $86.0 million, $649.5 million, $1.1 billion and $54.9 million, respectively, based on quoted market prices, a Level 1 measurement.
	Derivative Financial Instruments: We may use derivative financial instruments to reduce our exposure to various market risks, primarily interest rate risk. We have documented policies and procedures to monitor and control the use of derivatives. We do not engage in derivative transactions for speculative or trading purposes. At September 30, 2014 and December 31, 2013, we had no outstanding derivative instruments.
	Recent Accounting Standards: In May 2014, the Financial Accounting Standards Board issued Accounting Standards Update ("ASU") No. 2014-09, Revenue from Contracts with Customers. The ASU will supersede most of the existing revenue recognition requirements in U.S. GAAP, including industry-specific guidance. The ASU is based on the principle that revenue is recognized when an entity transfers promised goods and services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The new standard also requires significant additional disclosures regarding the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. The ASU is effective for annual reporting periods beginning after December 15, 2016, and interim periods within those years, using either a full or a modified retrospective application approach. We are beginning the process of evaluating the impact the pronouncement will have on our consolidated financial statements and related disclosures.

Transactions_with_F3_Capital_a

Transactions with F3 Capital and Affiliates	9 Months Ended
	Sep. 30, 2014
Related Party Transactions [Abstract]	'
Transactions with F3 Capital and Affiliates	'
	3. Transactions with F3 Capital and Affiliates
	F3 Capital Note
	In connection with the acquisition of the Platinum Explorer, we issued a promissory note to F3 Capital (the “F3 Capital Note”). The F3 Capital Note accrues interest at 5% per annum and matures in January 2018. If we do not repay the F3 Capital Note on its scheduled maturity date or upon the occurrence of certain customary default provisions, the interest rate on any amounts outstanding under the F3 Capital Note will rise to 10% per annum. The F3 Capital Note contains a preemptive right covenant that provides F3 Capital with the right to purchase a pro-rata portion of any equity or convertible debt that we offer at a price per share less than the contingent conversion price of the F3 Capital Note so long as the F3 Capital Note is outstanding.
	In August 2012, F3 Capital elected to apply $6.5 million aggregate principal amount of the F3 Capital Note as consideration for an equivalent amount of 7.875% Convertible Notes. We did not receive any cash proceeds from this direct placement.
	We originally valued the F3 Capital Note based on our weighed average cost of capital which resulted in a discounted present value of $27.8 million. As of September 30, 2014, if we were to value the F3 Capital Note at our current weighted average cost of capital, the current discounted present value would be approximately $33.7 million, a Level 3 measurement. In July 2013, F3 Capital delivered formal notice to us that it believes we breached the F3 Capital Note. Among its claims, F3 Capital alleged that we failed to use commercially reasonable efforts to obtain shareholder approval for the issuance of shares upon the conversion of the F3 Capital Note. In connection with its claims, F3 Capital may attempt to accelerate the maturity of the F3 Capital Note in an amount totaling approximately $63.0 million of principal and interest, plus F3 Capital’s claims for penalties and additional interest in excess of $35.0 million. We believe we have met our obligations under the F3 Capital Note to use commercially reasonable efforts to obtain shareholder approvals, and instituted an action for declaratory relief in the English High Court for purposes of obtaining a judicial determination on F3 Capital’s claims. We intend to vigorously defend our position. In recognition that the standards of what constitutes commercially reasonable efforts may be subject to interpretation, there can be no assurances that the court will agree with our interpretation.
	Lawsuit
	On August 21, 2012, we filed a lawsuit against Mr. Hsin-Chi Su, a former member of our Board of Directors and the owner of F3 Capital, our largest shareholder, asserting breach of fiduciary duties, fraud, fraudulent inducement and negligent misrepresentation, and unjust enrichment based on Mr. Su’s conduct in his dealings with the Company both immediately prior to and during his tenure as one of our directors. The lawsuit, styled Vantage Drilling Company vs. Hsin-Chi Su a/k/a Nobu Su, is currently pending in the 270th Judicial District Court of Harris County, Texas. In the lawsuit, we are seeking to recover actual and punitive damages as well as other relief, in each case, relating to our past transactions with Mr. Su and F3 Capital, including our joint venture with Mandarin Drilling Corporation, an entity formerly owned and controlled by Mr. Su, our acquisition of the Platinum Explorer from Mandarin Drilling Corporation and the financing thereof, and the acquisition of the Titanium Explorer. In conjunction with the pending lawsuit, on June 20, 2014, we received notice that Mr. Su had filed a countersuit against the Company and certain of the Company's current and former officers and directors. The countersuit alleges fraud, breach of fiduciary duty and theft by the Company and certain of its current and former officers and directors in the Company's dealings with Mr. Su. Further, the countersuit alleges that the Company has wrongfully obtained an injunction against Mr. Su. In his countersuit, Mr. Su asks that the Company recover nothing in its suit against Mr. Su and seeks actual damages of at least $8 billion, exemplary damages, attorneys' fees and other relief. We intend to vigorously defend against the charges made in the countersuit and pursue our claims, but we can provide no assurance as to the outcome of this legal action.
	Drillship Construction Supervision Agreement
	We had a construction supervision agreement with an affiliate of F3 Capital that entitled us to payments for supervising the construction of Hull 3608, an ultra-deepwater drillship. In November 2009, pursuant to the terms of the construction supervision agreement, the affiliate of F3 Capital cancelled the agreement. Management fee revenue of approximately $3.0 million for construction services rendered by us in 2009 prior to the suspension and cancellation has not been paid as of September 30, 2014, and remains currently due and payable. We have issued demand letters regarding payment of the overdue amount.

Construction_Supervision_and_O

Construction Supervision and Operations Management Agreements	9 Months Ended
	Sep. 30, 2014
Construction Supervision And Operations Management Agreements [Abstract]	'
Construction Supervision and Operations Management Agreements	'
	4. Construction Supervision and Operations Management Agreements
	In September 2013, we signed an agreement to supervise and manage the construction of two ultra-deepwater drillships for a third party. We receive management fees and reimbursable costs during the construction phase of the two drillships, subject to a maximum amount for each drillship.
	In connection with our November 2012 investment of $31 million for a 41.9% ownership interest in Sigma, we entered into an agreement to supervise and manage the construction of the Palladium Explorer. Pursuant to the terms of the construction management agreement, we were entitled to a fixed monthly management fee during the expected thirty-six month construction period for the vessel. Following the receipt of notice in September 2013 that STX was suspending construction of the Palladium Explorer, Sigma terminated our construction management agreement in January 2014. In May 2014, we reached an agreement with Sigma regarding amounts owed to us under the construction management agreement, which resulted in payment to us of $4.0 million, including a $3.0 million termination fee. The remaining $1.7 million outstanding will be received on the earlier of the receipt of any further monies from STX or one year from the date of the agreement. In July 2014, a reduction in Sigma’s capital was approved by the appropriate authorities and in August 2014, a distribution of $55.5 million was made to the shareholders of Sigma, of which we received $23.3 million. While we continue to believe we will recover substantially all of our remaining investment, there can be no assurance that we will receive payments equal to the current amount of our investment in Sigma and the amount due under the construction management agreement.
	In October 2012, we reached an understanding with a contractor in Mexico to manage the construction and operations of a newbuild jackup rig. The contractor subsequently acquired a second jackup rig and ordered two additional rigs, and awarded us construction management contracts for each of the four rigs. Effective September 30, 2013, the contractor assumed construction management responsibilities for the third and fourth rigs, however, we continued to receive our management fees until mid-November. We managed the operations of the first two rigs in Mexico until May 31, 2014 when we transitioned the rig operations to the contractor. In connection therewith, we are receiving a termination fee of $2.75 million, payable in six equal monthly installments beginning June 30, 2014 and have received four payments thus far.
	In July 2010, we signed an agreement to supervise and manage the construction and marketing of the ultra-deepwater drillship the Dalian Developer. In September 2013, the agreement was modified and notice was given to us that the contract would terminate in six months. The agreement terminated in March 2014 and we have no further obligations with regard to the Dalian Developer.

Debt

Debt	9 Months Ended
	Sep. 30, 2014
Debt Disclosure [Abstract]	'
Debt	'
	5. Debt
	Our debt was composed of the following:
		September 30,		December 31,
		2014		2013
		(Unaudited)
		(In thousands)
	7.5% Senior Notes, issued at par	$	1,143,000	$	1,150,000
	7.125% Senior Notes, issued at par		734,973		775,000
	$500 million 2017 Term Loan, net of discount of $4,916 and $7,109		378,084		455,391
	$350 million 2019 Term Loan, net of discount of $3,893 and $4,561		340,857		342,814
	5.50% Convertible Notes, net of discount of $7,001 and $9,923		92,999		90,077
	7.875% Convertible Notes, net of discount of $1,696 and $2,130		54,804		54,370
	Revolving credit agreement		—		10,000
	F3 Capital Note, net of discount of $12,747 and $15,602		40,753		37,898
			2,785,470		2,915,550
	Less current maturities of long-term debt and revolving credit facility		53,500		63,500
	Long-term debt	$	2,731,970	$	2,852,050
	7.5% Senior Notes and $500 Million 2017 Term Loan
	In October 2012, Offshore Group Investment Limited, one of our wholly-owned subsidiaries (“OGIL”), issued $1.150 billion in aggregate principal amount of 7.5% Senior Notes under an indenture. The 7.5% Senior Notes were issued at par and are fully and unconditionally guaranteed, on a senior secured basis, by us and certain of our subsidiaries. The 7.5% Senior Notes mature on November 1, 2019, and bear interest from the date of their issuance at the rate of 7.5% per year. Interest on outstanding 7.5% Senior Notes is payable semi-annually in arrears, commencing on May 1, 2013. Interest is computed on the basis of a 360-day year comprised of twelve 30-day months.
	Concurrently with the closing of the 7.5% Senior Notes, we entered into the 2017 Term Loan. The 2017 Term Loan was issued at 98% of the face value and initially had an interest rate of LIBOR plus 5%, with a LIBOR floor of 1.25%. The 2017 Term Loan has scheduled debt maturities, payable quarterly, of 5% in the first year and 10% in subsequent years with final maturity on October 25, 2017. The original issue discount, reported as a direct deduction from the face amount of the 2017 Term Loan, will be recognized over the life of the 2017 Term Loan using the effective interest rate method. The 2017 Term Loan is secured on a senior secured basis by us and certain of our subsidiaries.
	In November 2013, the 2017 Term Loan was amended to modify the applicable interest rates to: (i) decrease the adjusted LIBOR margin from 5.0% to 4.0% per annum, (ii) decrease the LIBOR floor from 1.25% to 1.0% per annum and (iii) decrease the ABR margin from 4.0% to 3.0%. The amendment also reflected a decrease in the principal amount due from $500 million to $475 million as a result of us making scheduled principal repayments under the original note.
	The net proceeds from the above described financings, after fees and expenses, of approximately $1.6 billion were used (i) to pay the total consideration and accrued and unpaid interest on a concurrent tender offer of $1.0 billion of OGIL’s existing debt and related consent solicitation, (ii) for general corporate purposes, including the funding of the final construction payment for the Tungsten Explorer drillship and (iii) to pay fees and expenses related to both of the financings, consent solicitation and related transactions.
	In June 2014, we made an additional principal payment of $42.0 million on the 2017 Term Loan. In connection with this payment, we recognized a non-cash charge of approximately $1.4 million related to the write-off of deferred financing costs and original issuance discount on the debt.
	In September 2014, we repurchased in the open market, and subsequently cancelled, $7.0 million of the 7.5% Senior Notes. In connection with this transaction, we recognized a non-cash gain of approximately $74,000 related to the early extinguishment of the debt.
	7.125% Senior Notes and $350 Million 2019 Term Loan
	In March 2013, OGIL issued $775.0 million in aggregate principal amount of 7.125% Senior Notes under an indenture. The 7.125% Senior Notes were issued at par and are fully and unconditionally guaranteed, on a senior secured basis, by us and certain of our subsidiaries. The 7.125% Senior Notes mature on April 1, 2023, and bear interest from the date of their issuance at the rate of 7.125% per year. Interest on outstanding 7.125% Senior Notes is payable semi-annually in arrears, commencing on October 1, 2013. Interest is computed on the basis of a 360-day year comprised of twelve 30-day months.
	Additionally during March 2013, we entered into the $350 million 2019 Term Loan (the “2019 Term Loan”). The 2019 Term Loan was issued at 98.5% of the face value and bears interest at LIBOR plus 4.5%, with a LIBOR floor of 1.25%. The 2019 Term Loan has annual scheduled debt maturities of 1% of the original principal amount that are payable quarterly commencing in June 2013. The maturity date of the 2019 Term Loan is March 28, 2019. The original issue discount, reported as a direct deduction from the face amount of the 2019 Term Loan, will be recognized over the life of the 2019 Term Loan using the effective interest rate method. The 2019 Term Loan is secured on a senior secured basis by us and certain of our subsidiaries.
	The net proceeds, after fees and expenses, from the 7.125% Senior Notes and the 2019 Term Loan of approximately $1.1 billion were used to retire approximately $1.0 billion of OGIL’s existing debt for total consideration of approximately $1.1 billion, including $92.3 million paid for the early redemption and consent fees and $18.2 million for accrued and unpaid interest. The balance of the proceeds was used for payment of transaction expenses and general corporate purposes.
	In February 2014, we repurchased in the open market, and subsequently cancelled, $6.0 million of the 7.125% Senior Notes. In connection with this transaction, we recognized a non-cash charge of approximately $106,000 related to the early extinguishment of the debt. In May 2014, we repurchased, and subsequently cancelled, an additional $1.5 million of the 7.125% Senior Notes and recognized a non-cash charge of approximately $10,600 related to the early extinguishment of the debt. In the three months ending September 30, 2014, we repurchased, and subsequently cancelled, an additional $32.5 million of the 7.125% Senior Notes and recognized a non-cash gain of approximately $977,000 related to the early extinguishment of the debt.
	5.50% Senior Convertible Notes
	In July 2013, we issued $100 million aggregate principal amount of 5.50% Convertible Notes under an indenture. The 5.50% Convertible Notes will mature on July 15, 2043, unless earlier converted, redeemed or repurchased, and bear interest at a rate of 5.50% per annum, payable semi-annually in arrears on January 15 and July 15 of each year, commencing on January 15, 2014. The 5.50% Convertible Notes are our senior, unsecured obligations, and rank senior in right of payment to all of our existing and future subordinated indebtedness and equal in right of payment with any of our other existing and future senior unsecured indebtedness, including our 7.875% Convertible Notes. The 5.50% Convertible Notes are structurally subordinated to all debt and other liabilities of our subsidiaries and are effectively junior to our secured debt to the extent of the value of the assets securing such debt. The net proceeds, after fees and expenses, of approximately $96.5 million were used to fund the initial payment of $59.5 million under the Cobalt Explorer construction contract and the remainder was used for general corporate purposes.
	The 5.50% Convertible Notes are convertible into our ordinary shares, cash or a combination of ordinary shares and cash, at our election, based upon an initial conversion rate of 418.6289 ordinary shares per $1,000 principal amount of 5.50% Convertible Notes (equivalent to an initial conversion price of approximately $2.39 per ordinary share). In addition, for conversions by holders after July 15, 2013 and prior to July 15, 2016, converting holders are entitled to a conversion make-whole payment upon conversion.
	The 5.50% Convertible Notes contain an embedded conversion option related to the cash settlement provisions and under U.S. GAAP is required to be separated into liability and equity components. We evaluated the 5.50% Convertible Notes based on the market terms of new, nonconvertible debt issuances made by companies with similar credit ratings, adjusting for the unsecured nature of the 5.50% Convertible Notes. Based on this evaluation, we determined that the fair value of the 5.50% Convertible Notes absent the conversion feature was approximately $88.3 million at issuance. The difference between the par value of the 5.50% Convertible Notes and the fair value at date of issuance is recorded as equity and as a discount to the face amount of the 5.50% Convertible Notes and is being amortized to interest expense over the expected life using the effective interest rate method.
	The 5.50% Convertible Notes are subject to redemption at our option on or after July 15, 2016 and before July 15, 2018 if the volume weighted average price of our ordinary shares is greater than or equal to 150% of the applicable conversion price for at least 20 trading days during any 30 consecutive trading day period ending within five trading days prior to the notice of redemption. In addition, we may redeem the 5.50% Convertible Notes at any time on and after July 15, 2018. In each case, the redemption purchase price is equal to 100% of the principal amount of the 5.50% Convertible Notes being redeemed, plus accrued and unpaid interest to, but excluding, the redemption date.
	The 5.50% Convertible Notes are subject to repurchase by us at the option of holders of the 5.50% Convertible Notes on July 15, 2016 and on July 15, 2018 for cash at a price equal to 100% of the principal amount of the 5.50% Convertible Notes being repurchased, plus accrued and unpaid interest to, but excluding, the repurchase date.
	7.875% Senior Convertible Notes
	In August 2012, we issued $56.5 million aggregate principal amount of 7.875% Convertible Notes under an indenture. The 7.875% Convertible Notes will mature on September 1, 2042, unless earlier converted, repurchased or redeemed, and bear interest at a rate of 7.875% per annum, payable semiannually, in arrears, on March 1 and September 1 of each year, commencing on March 1, 2013. The 7.875% Convertible Notes are our senior unsecured obligation and rank equal in payment with our other senior unsecured debt but are structurally subordinated to the debt of our subsidiaries as the 7.875% Convertible Notes are not guaranteed by any of our subsidiaries. We issued $6.5 million of the 7.875% Convertible Notes to F3 Capital. The net proceeds, after fees and expenses, of approximately $48.3 million were used to fund capital expenditures and working capital needs, and for general corporate purposes.
	The 7.875% Convertible Notes are convertible into our ordinary shares, or a combination of cash and ordinary shares, if any, at our election, based upon an initial conversion rate of 476.1905 ordinary shares per $1,000 principal amount of 7.875% Convertible Notes (equivalent to an initial conversion price of approximately $2.10 per ordinary share). Holders of the 7.875% Convertible Notes may voluntarily elect to convert all, or any portion, of their holdings at any time. In addition, for any conversions prior to September 1, 2017, holders will be entitled to a make-whole payment upon conversion.
	Due to the embedded conversion option related to the cash settlement provisions, we evaluated the 7.875% Convertible Notes based on the market terms of new, nonconvertible debt issuances made by companies with similar credit ratings, adjusting for the unsecured nature of the 7.875% Convertible Notes. Based on this evaluation, we determined that the fair value of the 7.875% Convertible Notes absent the conversion feature was approximately $53.6 million at issuance. The difference between the par value and the fair value at date of issuance of the 7.875% Convertible Notes was recorded as equity and as a debt discount, and is being amortized to interest expense over the expected life of the 7.875% Convertible Notes using the effective interest rate method.
	The 7.875% Convertible Notes are subject to redemption at our option on or after September 1, 2015 and before September 1, 2017 if the volume weighted average price of our ordinary shares is greater than or equal to 125% of the applicable conversion price for at least 20 trading days during any 30 consecutive trading day period. Further, the 7.875% Convertible Notes are subject to mandatory conversion at our option on or before September 1, 2015 if the volume weighted average price of our ordinary shares is greater than or equal to 150% of the applicable conversion price for at least 20 trading days during any 30 consecutive trading day period. In each case, the redemption purchase price is equal to 100% of the principal amount of the 5.50% Convertible Notes being redeemed, plus accrued and unpaid interest to, but excluding, the redemption date.
	Credit Agreement
	In June 2012, we entered into a secured revolving credit agreement (the “Credit Agreement”) to provide us with advances and letters of credit up to an aggregate principal amount of $25.0 million. In March 2013, in connection with the issuance of the 7.125% Senior Notes and the 2019 Term Loan, we amended the Credit Agreement to increase the aggregate principal amount to $200.0 million, of which $32.0 million is reserved for letters of credit. The Credit Agreement will now mature on April 25, 2017. Advances under the Credit Agreement bear interest at the adjusted base rate (as defined in the Credit Agreement) plus a margin of 2.50% or LIBOR plus a margin of 3.50%, at our option. We may prepay outstanding advances subject to certain prepayment minimums at any time.
	The Credit Agreement includes customary covenants and events of default, including covenants that, among other things, restrict the granting of liens on certain assets, restrict the incurrence of indebtedness and the conveyance of and modification to vessels and require us to maintain certain financial ratios and provide periodic financial reports. Advances under the Credit Agreement are secured by a lien on certain of our assets, which are substantially similar to those assets pledged in connection with the 7.125% Senior Notes, the 7.5% Senior Notes, the 2017 Term Loan and the 2019 Term Loan. We believe we were in compliance with all financial covenants of the Credit Agreement at September 30, 2014. As of September 30, 2014, we had issued letters of credit for $21.5 million under the Credit Agreement.

Shareholders_Equity

Shareholders' Equity	9 Months Ended
	Sep. 30, 2014
Equity [Abstract]	'
Shareholders' Equity	'
	6. Shareholders’ Equity
	Preferred Shares
	We have 10,000,000 authorized preferred shares, par value $0.001 per share. As of September 30, 2014, no preferred shares were issued and outstanding.
	Ordinary Shares
	We have 500,000,000 authorized ordinary shares, par value $0.001 per share. Under our 2007 Long-Term Incentive Plan (the “LTIP”), we may issue a maximum of 45 million ordinary shares. During the nine months ended September 30, 2014, we granted to employees and directors 4,321,289 time-vested restricted shares and 1,978,542 performance unit awards under our LTIP. Time-vested restricted share awards issued to employees vest ratably over four years, while awards to directors vest one year from date of grant. Performance unit awards vest over a three-year period based on the level of attainment of pre-determined criteria; upon vesting, each performance unit award may be converted to ordinary shares at a ratio ranging from 0 to 1.5. The value of the 2014 time-vested restricted share awards and performance units is amortized to expense over the respective vesting period based on the fair value of the awards at the grant dates, which was approximately $11.7 million, based on an average share price of $1.86 per share. For purposes of calculating the grant date fair value of the performance units, the target conversion ratio of one ordinary share for one performance unit was used. In the nine months ended September 30, 2014, 2,836,634 of previously granted time-vested restricted share awards and 668,550 performance units, including 96,176 additional shares issued pursuant to achievement of pre-determined criteria, vested. Additionally, in the nine months ended September 30 2014, we issued 125,971 shares, valued at approximately $230,000, to directors in lieu of cash for directors’ fees.

Income_Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2014
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	7. Income Taxes
	We are a Cayman Islands entity. The Cayman Islands does not impose corporate income taxes. Consequently, we have provided income taxes based on the tax laws and rates in effect in the countries in which operations are conducted, or in which we and our subsidiaries are considered resident for income tax purposes. We operate in multiple countries under different legal forms. As a result, we are subject to the jurisdiction of numerous domestic and foreign tax authorities, as well as to tax agreements and treaties among these governments. Our operations in these different jurisdictions are taxed on various bases, including (i) actual income before taxes, (ii) deemed profits (which are generally determined by applying a tax rate to revenues rather than profits) and (iii) withholding taxes based on revenue. Determination of taxable income in any jurisdiction requires the interpretation of the related tax laws and regulations and the use of estimates and assumptions regarding significant future events, such as the amount, timing and character of deductions, permissible revenue recognition methods under the tax law and the sources and character of income and tax credits. Changes in tax laws, regulations, agreements and treaties, foreign currency exchange restrictions or our level of operations or profitability in each tax jurisdiction could have an impact on the amount of income taxes that we provide during any given year.
	We account for income taxes pursuant to ASC 740, Accounting for Income Taxes, which requires recognition of deferred income tax assets and liabilities for the expected future tax consequences of events that have been recognized in our financial statements or tax returns. We provide for deferred taxes on temporary differences between the financial statements and tax bases of assets and liabilities using the enacted tax rates which are expected to apply to taxable income when the temporary differences are expected to reverse. Deferred tax assets are also provided for certain tax credit carryforwards. A valuation allowance is established to reduce deferred tax assets when it is more likely than not that some portion or all of the deferred tax asset will not be realized.
	In certain jurisdictions we are taxed under preferential tax regimes, which may require our compliance with specified requirements to sustain the tax benefits. We believe we are in compliance with the specified requirements and will continue to make all reasonable efforts to comply; however, our ability to meet the requirements of the preferential tax regimes may be affected by changes in laws, our business operations and other factors affecting our company and industry, many of which are beyond our control.
	Our periodic tax returns are subject to examination by taxing authorities in the jurisdictions in which we operate in accordance with the normal statutes of limitations in the applicable jurisdiction. These examinations may result in assessments of additional taxes that are resolved with the authorities or through the courts. Resolution of these matters involves uncertainties and there are no assurances as to the outcome. Our tax years 2008 and forward remain open to examination in many of our jurisdictions and we are currently involved in several tax examinations in jurisdictions where we are operating or have previously operated. As information becomes available during the course of these examinations, we may increase or decrease our estimates of tax assessments and accruals.

Commitments_and_Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2014
Commitments And Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	8. Commitments and Contingencies
	We are subject to litigation, claims and disputes in the ordinary course of business, some of which may not be covered by insurance. There is an inherent risk in any litigation or dispute and no assurance can be given as to the outcome of any claims. We do not believe the ultimate resolution of any existing litigation, claims or disputes will have a material adverse effect on our financial position, results of operations or cash flows.
	On August 21, 2012, we filed a lawsuit against Mr. Hsin-Chi Su, a former member of our Board of Directors and the owner of F3 Capital, our largest shareholder, asserting breach of fiduciary duties, fraud, fraudulent inducement and negligent misrepresentation, and unjust enrichment based on Mr. Su’s conduct in his dealings with the Company both immediately prior to, and during his tenure as one of our directors. In June 2014, Mr. Su filed a countersuit against us and certain of our current and former officers and directors. See above under “Note 3. Transactions with F3 Capital and Affiliates—Lawsuit” for additional information.
	We enter into operating leases in the normal course of business for office space, housing, vehicles and specified operating equipment. Some of these leases contain renewal options which would cause our future cash payments to change if we exercised those renewal options.

Supplemental_Financial_Informa

Supplemental Financial Information	9 Months Ended
	Sep. 30, 2014
Selected Quarterly Financial Information [Abstract]	'
Supplemental Financial Information	'
	9. Supplemental Financial Information
	Prepaid Expenses and Other Current Assets
	Prepaid expenses and other current assets consisted of the following:
		September 30,			December 31,
		2014			2013
		(Unaudited)
		(In thousands)
	Prepaid insurance	$	1,914		$	13,178
	Sales tax receivable		4,822			3,621
	Income tax receivable		2,077			962
	Current deferred tax asset		1,931			2,139
	Other receivables		1,093			278
	Deferred mobilization costs		—			665
	Other		3,984			2,874
		$	15,821		$	23,717
	Property and Equipment, net
	Property and equipment, net consisted of the following:
		September 30,			December 31,
		2014			2013
		(Unaudited)
		(In thousands)
	Drilling equipment	$	3,382,927		$	3,376,631
	Assets under construction		104,911			75,993
	Office and technology equipment		19,449			17,750
	Leasehold improvements		1,980			2,033
			3,509,267			3,472,407
	Accumulated depreciation		(376,280	)		(281,759	)
	Property and equipment, net	$	3,132,987		$	3,190,648
	Other Assets
	Other assets consisted of the following:
		September 30,			December 31,
		2014			2013
		(Unaudited)
		(In thousands)
	Deferred financing costs, net	$	45,861		$	56,145
	Performance bond collateral		6,600			24,882
	Deferred certification costs		7,670			6,494
	Deferred agent fees		6,388			7,160
	Deferred mobilization costs		15,144			4,066
	Deferred income taxes		11			-
	Deposits		1,409			1,280
		$	83,083		$	100,027
	Accrued Liabilities
	Accrued liabilities consisted of the following:
		September 30,			December 31,
		2014			2013
		(Unaudited)
		(In thousands)
	Interest	$	76,750		$	43,064
	Compensation		21,067			20,045
	Insurance premiums		—			10,136
	Unearned income		—			615
	Deferred revenue		—			8,928
	Property, service and franchise taxes		—			1,610
	Income taxes payable		27,145			7,577
	Other		6,206			4,407
		$	131,168		$	96,382
	Other Long-Term Liabilities
	Other long-term liabilities consisted of the following:
		September 30,			December 31,
		2014			2013
		(Unaudited)
		(In thousands)
Deferred revenue	$	75,034		$	34,385
Deferred income taxes		2,409			2,801
Other non-current liabilities		10,523			8,454
	$	87,966		$	45,640

Business_Segment_and_Significa

Business Segment and Significant Customer Information	9 Months Ended
	Sep. 30, 2014
Segment Reporting [Abstract]	'
Business Segment and Significant Customer Information	'
	10. Business Segment and Significant Customer Information
	We aggregate our contract drilling operations into one reportable segment even though we provide contract drilling services with different types of MODUs, including jackup rigs and drillships, and in different geographic regions. Our operations are dependent on the global oil and gas industry and our MODUs are relocated based on demand for our services and customer requirements. Our customers consist primarily of large international oil and gas companies, national or government-controlled oil and gas companies and other international exploration and production companies. We also provide construction supervision and operations management services for drilling units owned by others.
	For 2014 and 2013, the majority of our revenue was from countries outside of the United States. Consequently, we are exposed to the risk of changes in economic, political and social conditions inherent in foreign operations. Four customers accounted for approximately 32%, 24%, 18% and 11% of consolidated revenue for the three months ended September 30, 2014. For the nine months ended September 30, 2014, four customers accounted for 23%, 21%, 20% and 15% of consolidated revenue. Three customers accounted for 31%, 30 % and 10% of consolidated revenue for the three months ended September 30, 2013. For the nine months ended September 30, 2013, three customers accounted for 32%, 26% and 11% of consolidated revenue.

Supplemental_Condensed_Consoli

Supplemental Condensed Consolidating Financial Information	9 Months Ended
	Sep. 30, 2014
Disclosure Text Block Supplement [Abstract]	'
Supplemental Condensed Consolidating Financial Information	'
	11. Supplemental Condensed Consolidating Financial Information
	The 7.125% Senior Notes and 7.5% Senior Notes were issued under separate indentures and are fully and unconditionally guaranteed, jointly and severally, on a senior secured basis by us and certain of our subsidiaries (the “Subsidiary Guarantors”). Our other subsidiaries have not guaranteed or pledged assets to secure the 7.125% Senior Notes or the 7.5% Senior Notes (collectively, the “Non-Guarantors”).
	The following tables present the condensed consolidating financial information as of September 30, 2014 and 2013 and for the three and nine months ended September 30, 2014 and 2013 of (i) Vantage Drilling Company (the “Parent”), (ii) OGIL, (iii) the Subsidiary Guarantors, (iv) the Non-Guarantors and (v) consolidating and elimination entries representing adjustments to eliminate (a) investments in our subsidiaries and (b) intercompany transactions.
	The financial information reflects all adjustments which are, in management’s opinion, necessary for a fair presentation of the financial position as of September 30, 2014 and 2013 and results of operations for the three and nine months ended September 30, 2014 and 2013, respectively.
	Condensed Consolidating Balance Sheet (in thousands)
		As of September 30, 2014
		Parent			OGIL			Subsidiary Guarantors			Non-Guarantors			Eliminations			Consolidated
	Cash and cash equivalents	$	3,364		$	39,375		$	32,412		$	6,164		$	—		$	81,315
	Other current assets		615			73			289,807			14,383			—			304,878
	Total current assets		3,979			39,448			322,219			20,547			—			386,193
	Property and equipment, net		—			1,121			2,836,674			109,372			185,820			3,132,987
	Investment in and advances to subsidiaries		653,679			1,433,914			1,053,496			2,104			(3,143,193	)		—
	Investment in joint venture		—			—			—			1,571			—			1,571
	Other assets		9,546			42,702			26,158			4,677			—			83,083
	Total assets	$	667,204		$	1,517,185		$	4,238,547		$	138,271		$	(2,957,373	)	$	3,603,834
	Accounts payable and accrued liabilities	$	19,004		$	62,048		$	83,325		$	24,639		$	—		$	189,016
	Current maturities of long-term debt		—			53,500			—			—			—			53,500
	Intercompany (receivable) payable		(296,590	)		(765,545	)		990,031			72,104			—			—
	Total current liabilities		(277,586	)		(649,997	)		1,073,356			96,743			—			242,516
	Long-term debt		188,556			2,543,414			—			—			—			2,731,970
	Other long term liabilities		—			—			79,503			8,463			—			87,966
	Shareholders’ equity (deficit)		756,234			(376,232	)		3,085,688			33,065			(2,957,373	)		541,382
	Total liabilities and shareholders’ equity	$	667,204		$	1,517,185		$	4,238,547		$	138,271		$	(2,957,373	)	$	3,603,834
	Condensed Consolidating Statement of Operations (in thousands)
		Three Months Ended September 30, 2014
		Parent			OGIL			Subsidiary Guarantors			Non-Guarantors			Consolidated
	Revenues	$	—		$	—		$	203,271		$	4,247		$	207,518
	Operating costs and expenses		2,859			165			139,538			10,328			152,890
	Income (loss) from operations		(2,859	)		(165	)		63,733			(6,081	)		54,628
	Other, net		(4,508	)		(47,812	)		393			(8	)		(51,935	)
	Income (loss) before income taxes		(7,367	)		(47,977	)		64,126			(6,089	)		2,693
	Income tax provision (benefit)		—			—			7,563			746			8,309
	Net income (loss)	$	(7,367	)	$	(47,977	)	$	56,563		$	(6,835	)	$	(5,616	)
	Condensed Consolidating Statement of Operations (in thousands)
		Nine Months Ended September 30, 2014
		Parent			OGIL			Subsidiary Guarantors			Non-Guarantors			Consolidated
	Revenues	$	—		$	—		$	631,054		$	28,647		$	659,701
	Operating costs and expenses		6,590			475			384,450			40,835			432,350
	Income (loss) from operations		(6,590	)		(475	)		246,604			(12,188	)		227,351
	Other, net		(13,678	)		(148,924	)		(188,113	)		188,758			(161,957	)
	Income (loss) before income taxes		(20,268	)		(149,399	)		58,491			176,570			65,394
	Income tax provision (benefit)		—			—			33,800			2,208			36,008
	Net income (loss)	$	(20,268	)	$	(149,399	)	$	24,691		$	174,362		$	29,386
	Condensed Consolidating Statement of Cash Flows (in thousands)
		Nine Months Ended September 30, 2014
		Parent			OGIL			Subsidiary Guarantors			Non-Guarantors			Consolidated
	Net cash provided by (used in) operating activities	$	(32,916	)	$	(102,868	)	$	301,548		$	9,218		$	174,982
	Net cash provided by (used in) investing activities		—			(217	)		(11,782	)		1,112			(10,887	)
	Net cash provided by (used in) financing activities		32,791			136,992			(294,842	)		(12,407	)		(137,466	)
	Net increase (decrease) in cash and cash equivalents		(125	)		33,907			(5,076	)		(2,077	)		26,629
	Cash and cash equivalents—beginning of period		3,489			5,468			37,488			8,241			54,686
	Cash and cash equivalents—end of period	$	3,364		$	39,375		$	32,412		$	6,164		$	81,315
	Condensed Consolidating Balance Sheet (in thousands)
		As of September 30, 2013
		Parent			OGIL			Subsidiary Guarantors			Non-Guarantors			Eliminations			Consolidated
	Cash and cash equivalents	$	27,386		$	8,817		$	25,902		$	5,624		$	—		$	67,729
	Other current assets		443			2,125			198,799			12,819			—			214,186
	Total current assets		27,829			10,942			224,701			18,443			—			281,915
	Property and equipment, net		—			1,227			3,119,328			86,646			—			3,207,201
	Investment in and advances to subsidiaries		654,624			1,437,787			1,056,395			1,804			(3,150,610	)		—
	Investment in joint venture		—			—			—			32,650			—			32,650
	Other assets		12,112			53,224			26,938			3,736			—			96,010
	Total assets	$	694,565		$	1,503,180		$	4,427,362		$	143,279		$	(3,150,610	)	$	3,617,776
Accounts payable and accrued liabilities	$	15,732		$	64,159		$	67,992		$	28,831		$	—		$	176,714
Current maturities of long-term debt		—			63,500			—			—			—			63,500
Intercompany (receivable) payable		(285,369	)		(1,131,153	)		1,335,985			80,537			—			—
Total current liabilities		(269,637	)		(1,003,494	)		1,403,977			109,368			—			240,214
Long-term debt		180,252			2,682,255			—			—			—			2,862,507
Other long term liabilities		—			—			34,756			6,792			—			41,548
Shareholders’ equity (deficit)		783,950			(175,581	)		2,988,629			27,119			(3,150,610	)		473,507
Total liabilities and shareholders’ equity	$	694,565		$	1,503,180		$	4,427,362		$	143,279		$	(3,150,610	)	$	3,617,776
Condensed Consolidating Statement of Operations (in thousands)
	Three Months Ended September 30, 2013
	Parent			OGIL			Subsidiary Guarantors			Non-Guarantors			Consolidated
Revenues	$	—		$	—		$	163,506		$	12,379		$	175,885
Operating costs and expenses		3,263			50			97,701			16,895			117,909
Income (loss) from operations		(3,263	)		(50	)		65,805			(4,516	)		57,976
Other, net		(4,446	)		(42,916	)		199			115			(47,048	)
Income (loss) before income taxes		(7,709	)		(42,966	)		66,004			(4,401	)		10,928
Income tax provision (benefit)		—			59			2,943			1,082			4,084
Net income (loss)	$	(7,709	)	$	(43,025	)	$	63,061		$	(5,483	)	$	6,844
Condensed Consolidating Statement of Operations (in thousands)
	Nine Months Ended September 30, 2013
	Parent			OGIL			Subsidiary Guarantors			Non-Guarantors			Consolidated
Revenues	$	—		$	—		$	462,035		$	31,488		$	493,523
Operating costs and expenses		6,504			112			281,541			46,508			334,665
Income (loss) from operations		(6,504	)		(112	)		180,494			(15,020	)		158,858
Other income (expense)		(10,687	)		(245,782	)		(1,647	)		3,883			(254,233	)
Income (loss) before income taxes		(17,191	)		(245,894	)		178,847			(11,137	)		(95,375	)
Income tax provision (benefit)		—			138			15,041			1,587			16,766
Net income (loss)	$	(17,191	)	$	(246,032	)	$	163,806		$	(12,724	)	$	(112,141	)
Condensed Consolidating Statement of Cash Flows (in thousands)
	Nine Months Ended September 30, 2013
	Parent			OGIL			Subsidiary Guarantors			Non-Guarantors			Consolidated
Net cash provided by (used in) operating activities	$	(27,152	)	$	(254,448	)	$	206,052		$	9,947		$	(65,601	)
Net cash provided by (used in) investing activities		—			(658	)		(473,474	)		(74,487	)		(548,619	)
Net cash provided by (used in) financing activities		39,067			(158,544	)		235,381			63,319			179,223
Net increase (decrease) in cash and cash equivalents		11,915			(413,650	)		(32,041	)		(1,221	)		(434,997	)
Cash and cash equivalents—beginning of period		15,471			422,467			57,943			6,845			502,726
Cash and cash equivalents—end of period	$	27,386		$	8,817		$	25,902		$	5,624		$	67,729

Basis_of_Presentation_and_Sign1

Basis of Presentation and Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2014
Accounting Policies [Abstract]	'
Basis of Consolidation	'
	Basis of Consolidation: The accompanying interim consolidated financial information as of September 30, 2014 and for the three and nine months ended September 30, 2014 and 2013 has been prepared without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”) and includes our accounts and those of our majority owned subsidiaries. All significant intercompany transactions and accounts have been eliminated. They reflect all adjustments which are, in the opinion of management, necessary for a fair presentation of the financial position and results of operations for the interim periods, on a basis consistent with the annual audited financial statements. Certain information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”) have been condensed or omitted pursuant to such rules and regulations, although we believe that the disclosures made are adequate to provide for fair presentation. The balance sheet at December 31, 2013 is derived from our December 31, 2013 audited financial statements. These interim financial statements should be read in conjunction with the financial statements and the notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2013. The results of operations for the interim periods are not necessarily indicative of the operating results for the full fiscal year or any future periods. Certain previously reported amounts have been reclassified to conform to the current period presentation.
Cash and Cash Equivalents	'
	Cash and Cash Equivalents: Includes deposits with financial institutions as well as short-term money market instruments with maturities of three months or less when purchased.
Restricted Cash	'
	Restricted Cash: Consists of cash and cash equivalents established as debt reserves and posted as collateral for bid tenders and performance bonds.
Inventory	'
	Inventory: Consists of materials, spare parts, consumables and related supplies for our drilling rigs and is carried at the lower of average cost or market.
Property and Equipment	'
	Property and Equipment: Consists of the costs of our drilling rigs, furniture and fixtures, computer equipment and capitalized costs for computer software. Drilling rigs are depreciated on a component basis over estimated useful lives ranging from five to thirty-five years on a straight-line basis as of the date placed in service. Other assets are depreciated upon placement in service over estimated useful lives ranging from three to seven years on a straight-line basis. When assets are sold, retired or otherwise disposed of, the cost and related accumulated depreciation are removed from the accounts and the gain or loss is recognized.
	Interest costs and the amortization of debt financing costs related to the financings of our MODUs are capitalized as part of the cost while they are under construction and prior to the commencement of each vessel’s first contract. Total interest and amortization costs capitalized for assets under construction for the three and nine months ended September 30, 2014 were $1.3 million and $3.8 million, respectively. Total interest and amortization costs capitalized for assets under construction for the three and nine months ended September 30, 2013 were $9.5 million and $15.9 million, respectively. We evaluate the realization of property and equipment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. An impairment loss on our property and equipment exists when estimated undiscounted cash flows expected to result from the use of the asset and its eventual disposition are less than its carrying amount. Any impairment loss recognized would represent the excess of the asset’s carrying value over the estimated fair value.
Debt Financing Costs	'
	Debt Financing Costs: Costs incurred with debt financings are deferred and amortized over the term of the related financing facility on a straight line basis which approximates the interest method.
Investment in Joint Venture	'
	Investment in Joint Venture: In November 2012, we acquired 41.9% of Sigma Drilling, Ltd. (“Sigma”), which had contracted to build an ultra-deepwater drillship, to be known as the Palladium Explorer, at STX Offshore & Shipbuilding Co. Ltd.’s (“STX”) shipyard in Korea. We are currently accounting for our interest in Sigma as an equity method investment. Accordingly, we recognize 41.9% of the profit or loss of Sigma as other income (expense) in our consolidated statement of operations with a corresponding adjustment to our investment in joint venture account. We capitalized interest on our investment in Sigma until September 2013 when STX suspended construction of the drillship. In January 2014, Sigma issued a termination notice to STX on the Palladium Explorer construction contract and Sigma terminated our construction management agreement. In July 2014, a reduction in Sigma’s capital was approved by the appropriate authorities and in August 2014, a distribution of $55.5 million was made to the remaining shareholders of Sigma, of which we received $23.3 million. See “Note 4. Construction Supervision and Operations Management Agreements.” During the three and nine-month periods ended September 30, 2014 and 2013, Sigma recognized losses from operations consisting primarily of general administrative expenses.
	The change in our investment in joint venture account was composed of the following (in thousands):
	Balance, December 31, 2013		$	32,482
	Return of investment			(23,250	)
	Write-off of deferred construction supervision revenue			(7,344	)
	Vantage share of net losses			(317	)
	Balance, September 30, 2014		$	1,571
Revenue	'
	Revenue: Revenue is recognized as services are performed based on contracted dayrates and the number of operating days during the period.
	In connection with a customer contract, we may receive lump-sum fees for the mobilization of equipment and personnel or the demobilization of equipment and personnel upon completion. Mobilization fees received and costs incurred to mobilize a rig from one geographic market to another are deferred and recognized on a straight-line basis over the term of such contract, excluding any option periods. Costs incurred to mobilize a rig without a contract are expensed as incurred. Fees or lump-sum payments received for capital improvements to rigs are deferred and amortized to income over the term of the related drilling contract. The costs of such capital improvements are capitalized and depreciated over the useful lives of the assets. Upon completion of drilling contracts, any demobilization fees received are recorded as revenue. We record reimbursements from customers for rebillable costs and expenses as revenue and the related direct costs as operating expenses.
Rig and Equipment Certifications	'
	Rig and Equipment Certifications: We are required to obtain regulatory certifications to operate our drilling rigs and certain specified equipment and must maintain such certifications through periodic inspections and surveys. The costs associated with these certifications, including drydock costs, are deferred and amortized over the corresponding certification periods.
Income Taxes	'
	Income Taxes: Income taxes are provided for based upon the tax laws and rates in effect in the countries in which operations are conducted and income is earned. Deferred income tax assets and liabilities are computed for differences between the financial statement basis and tax basis of assets and liabilities that will result in future taxable or deductible amounts and are based on enacted tax laws and rates applicable to the periods in which the differences are expected to affect taxable income. Valuation allowances are established when necessary to reduce deferred income tax assets to the amount expected to be realized. We recognize interest and penalties related to income taxes as a component of income tax expense.
Earnings per Share	'
	Earnings per Share: Basic earnings (loss) per share are based on the weighted average number of ordinary shares outstanding during the applicable period. Diluted earnings (loss) per share are computed based on the weighted average number of ordinary shares and ordinary share equivalents outstanding in the applicable period, as if all potentially dilutive securities were converted into ordinary shares (using the treasury stock method).
	The following is a reconciliation of the number of shares used for the basic and diluted earnings (loss) per share (“EPS”) computations:
				Three Months Ended September 30,				Nine Months Ended September 30,
				2014		2013		2014		2013
				(In thousands)
	Weighted average ordinary shares outstanding for basic EPS				306,761		302,682		306,046		301,962
		Options and warrants			-		-		-		-
		Convertible notes			-		-		-		-
	Adjusted weighted average ordinary shares outstanding for diluted EPS				306,761		302,682		306,046		301,962
	The following is a reconciliation of the number of shares excluded from diluted EPS computations:
				Three Months Ended September 30,				Nine Months Ended September 30,
				2014		2013		2014		2013
				(In thousands)
	Options and warrants				2,097		2,469		2,097		2,469
	Convertible notes				77,561		79,059		77,561		79,059
	Future potentially dilutive ordinary shares excluded from diluted EPS				79,658		81,528		79,658		81,528
	The warrants and share options are anti-dilutive as the exercise or conversion price of such securities exceeded the average market price of our shares for the applicable periods. The ordinary shares issuable for the convertible notes, if converted, are excluded as the effect of including convertible debt and the related adjustments to income under the “if-converted” method of computing diluted earnings per share is anti-dilutive for the applicable periods.
Concentration of Credit Risk	'
	Concentration of Credit Risk: Financial instruments that potentially subject us to a significant concentration of credit risk consist primarily of cash and cash equivalents, restricted cash and accounts receivable. We maintain deposits in federally insured financial institutions in excess of federally insured limits. We monitor the credit ratings and our concentration of risk with these financial institutions on a continuing basis to safeguard our cash deposits. Some of our restricted cash is invested in certificates of deposit. We have a limited number of key customers, who are primarily large international oil and gas operators, national oil companies and other international oil and gas companies. Our contracts provide for monthly billings as services are performed and we monitor compliance with contract payment terms on an ongoing basis. Outstanding receivables beyond payment terms are promptly investigated and discussed with the specific customer. We did not have an allowance for doubtful accounts as of September 30, 2014 or December 31, 2013.
Share-Based Compensation	'
	Share-Based Compensation: We account for share-based compensation using the fair value method as prescribed under U.S. GAAP. Restricted share grants are valued based on the market price of our ordinary shares on the date of grant and the fair value attributable to share options is calculated based on the Black-Scholes option pricing model. The fair values are amortized to expense over the requisite service period which is generally equivalent to the time required to vest the share options and share grants. We recognized approximately $2.3 million and $1.8 million of share-based compensation expense for the three months ended September 30, 2014 and 2013, respectively. For the nine months ended September 30, 2014 and 2013, we recognized approximately $6.5 million and $5.4 million, respectively, of share-based compensation expense.
Use of Estimates	'
	Use of Estimates: The preparation of financial statements in accordance with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. While management believes current estimates are appropriate and reasonable, actual results could differ from those estimates.
Fair Value of Financial Instruments	'
	Fair Value of Financial Instruments: The fair value of our short-term financial assets and liabilities approximates the carrying amounts represented in the balance sheet principally due to the short-term nature or floating rate nature of these instruments. At September 30, 2014, the fair value of the 5.50% Convertible Senior Notes (the “5.50% Convertible Notes”), 7.125% Senior Notes, the 7.5% Senior Notes and the 7.875% Convertible Notes was approximately $86.0 million, $649.5 million, $1.1 billion and $54.9 million, respectively, based on quoted market prices, a Level 1 measurement.
Derivative Financial Instruments	'
	Derivative Financial Instruments: We may use derivative financial instruments to reduce our exposure to various market risks, primarily interest rate risk. We have documented policies and procedures to monitor and control the use of derivatives. We do not engage in derivative transactions for speculative or trading purposes. At September 30, 2014 and December 31, 2013, we had no outstanding derivative instruments.
Recent Accounting Standards	'
	Recent Accounting Standards: In May 2014, the Financial Accounting Standards Board issued Accounting Standards Update ("ASU") No. 2014-09, Revenue from Contracts with Customers. The ASU will supersede most of the existing revenue recognition requirements in U.S. GAAP, including industry-specific guidance. The ASU is based on the principle that revenue is recognized when an entity transfers promised goods and services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The new standard also requires significant additional disclosures regarding the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. The ASU is effective for annual reporting periods beginning after December 15, 2016, and interim periods within those years, using either a full or a modified retrospective application approach. We are beginning the process of evaluating the impact the pronouncement will have on our consolidated financial statements and related disclosures.

Basis_of_Presentation_and_Sign2

Basis of Presentation and Significant Accounting Policies (Tables)	9 Months Ended
	Sep. 30, 2014
Accounting Policies [Abstract]	'
Change in Investment in Joint Venture	'
	The change in our investment in joint venture account was composed of the following (in thousands):
	Balance, December 31, 2013		$	32,482
	Return of investment			(23,250	)
	Write-off of deferred construction supervision revenue			(7,344	)
	Vantage share of net losses			(317	)
	Balance, September 30, 2014		$	1,571
Reconciliation of Number of Shares Used for Basic and Diluted Earnings (Loss) per Share ("EPS") Computations	'
	The following is a reconciliation of the number of shares used for the basic and diluted earnings (loss) per share (“EPS”) computations:
				Three Months Ended September 30,				Nine Months Ended September 30,
				2014		2013		2014		2013
				(In thousands)
	Weighted average ordinary shares outstanding for basic EPS				306,761		302,682		306,046		301,962
		Options and warrants			-		-		-		-
		Convertible notes			-		-		-		-
	Adjusted weighted average ordinary shares outstanding for diluted EPS				306,761		302,682		306,046		301,962
Reconciliation of Number of Shares Excluded from Diluted EPS Computations	'
	The following is a reconciliation of the number of shares excluded from diluted EPS computations:
				Three Months Ended September 30,				Nine Months Ended September 30,
				2014		2013		2014		2013
				(In thousands)
	Options and warrants				2,097		2,469		2,097		2,469
	Convertible notes				77,561		79,059		77,561		79,059
	Future potentially dilutive ordinary shares excluded from diluted EPS				79,658		81,528		79,658		81,528

Debt_Tables

Debt (Tables)	9 Months Ended
	Sep. 30, 2014
Debt Disclosure [Abstract]	'
Long-term Debt	'
	Our debt was composed of the following:
		September 30,		December 31,
		2014		2013
		(Unaudited)
		(In thousands)
	7.5% Senior Notes, issued at par	$	1,143,000	$	1,150,000
	7.125% Senior Notes, issued at par		734,973		775,000
	$500 million 2017 Term Loan, net of discount of $4,916 and $7,109		378,084		455,391
	$350 million 2019 Term Loan, net of discount of $3,893 and $4,561		340,857		342,814
	5.50% Convertible Notes, net of discount of $7,001 and $9,923		92,999		90,077
	7.875% Convertible Notes, net of discount of $1,696 and $2,130		54,804		54,370
	Revolving credit agreement		—		10,000
	F3 Capital Note, net of discount of $12,747 and $15,602		40,753		37,898
			2,785,470		2,915,550
	Less current maturities of long-term debt and revolving credit facility		53,500		63,500
	Long-term debt	$	2,731,970	$	2,852,050

Supplemental_Financial_Informa1

Supplemental Financial Information (Tables)	9 Months Ended
	Sep. 30, 2014
Selected Quarterly Financial Information [Abstract]	'
Prepaid Expenses and Other Current Assets	'
	Prepaid expenses and other current assets consisted of the following:
		September 30,			December 31,
		2014			2013
		(Unaudited)
		(In thousands)
	Prepaid insurance	$	1,914		$	13,178
	Sales tax receivable		4,822			3,621
	Income tax receivable		2,077			962
	Current deferred tax asset		1,931			2,139
	Other receivables		1,093			278
	Deferred mobilization costs		—			665
	Other		3,984			2,874
		$	15,821		$	23,717
Property and Equipment, Net	'
	Property and equipment, net consisted of the following:
		September 30,			December 31,
		2014			2013
		(Unaudited)
		(In thousands)
	Drilling equipment	$	3,382,927		$	3,376,631
	Assets under construction		104,911			75,993
	Office and technology equipment		19,449			17,750
	Leasehold improvements		1,980			2,033
			3,509,267			3,472,407
	Accumulated depreciation		(376,280	)		(281,759	)
	Property and equipment, net	$	3,132,987		$	3,190,648
Other Assets	'
	Other assets consisted of the following:
		September 30,			December 31,
		2014			2013
		(Unaudited)
		(In thousands)
	Deferred financing costs, net	$	45,861		$	56,145
	Performance bond collateral		6,600			24,882
	Deferred certification costs		7,670			6,494
	Deferred agent fees		6,388			7,160
	Deferred mobilization costs		15,144			4,066
	Deferred income taxes		11			-
	Deposits		1,409			1,280
		$	83,083		$	100,027
Accrued Liabilities	'
	Accrued liabilities consisted of the following:
		September 30,			December 31,
		2014			2013
		(Unaudited)
		(In thousands)
	Interest	$	76,750		$	43,064
	Compensation		21,067			20,045
	Insurance premiums		—			10,136
	Unearned income		—			615
	Deferred revenue		—			8,928
	Property, service and franchise taxes		—			1,610
	Income taxes payable		27,145			7,577
	Other		6,206			4,407
		$	131,168		$	96,382
Other Long-term Liabilities	'
	Other long-term liabilities consisted of the following:
		September 30,			December 31,
		2014			2013
		(Unaudited)
		(In thousands)
	Deferred revenue	$	75,034		$	34,385
	Deferred income taxes		2,409			2,801
	Other non-current liabilities		10,523			8,454
		$	87,966		$	45,640

Supplemental_Condensed_Consoli1

Supplemental Condensed Consolidating Financial Information (Tables)	9 Months Ended
	Sep. 30, 2014
Table Text Block Supplement [Abstract]	'
Condensed Consolidating Balance Sheet	'
	Condensed Consolidating Balance Sheet (in thousands)
		As of September 30, 2014
		Parent			OGIL			Subsidiary Guarantors			Non-Guarantors			Eliminations			Consolidated
	Cash and cash equivalents	$	3,364		$	39,375		$	32,412		$	6,164		$	—		$	81,315
	Other current assets		615			73			289,807			14,383			—			304,878
	Total current assets		3,979			39,448			322,219			20,547			—			386,193
	Property and equipment, net		—			1,121			2,836,674			109,372			185,820			3,132,987
	Investment in and advances to subsidiaries		653,679			1,433,914			1,053,496			2,104			(3,143,193	)		—
	Investment in joint venture		—			—			—			1,571			—			1,571
	Other assets		9,546			42,702			26,158			4,677			—			83,083
	Total assets	$	667,204		$	1,517,185		$	4,238,547		$	138,271		$	(2,957,373	)	$	3,603,834
	Accounts payable and accrued liabilities	$	19,004		$	62,048		$	83,325		$	24,639		$	—		$	189,016
	Current maturities of long-term debt		—			53,500			—			—			—			53,500
	Intercompany (receivable) payable		(296,590	)		(765,545	)		990,031			72,104			—			—
	Total current liabilities		(277,586	)		(649,997	)		1,073,356			96,743			—			242,516
	Long-term debt		188,556			2,543,414			—			—			—			2,731,970
	Other long term liabilities		—			—			79,503			8,463			—			87,966
	Shareholders’ equity (deficit)		756,234			(376,232	)		3,085,688			33,065			(2,957,373	)		541,382
	Total liabilities and shareholders’ equity	$	667,204		$	1,517,185		$	4,238,547		$	138,271		$	(2,957,373	)	$	3,603,834
	Condensed Consolidating Balance Sheet (in thousands)
		As of September 30, 2013
		Parent			OGIL			Subsidiary Guarantors			Non-Guarantors			Eliminations			Consolidated
	Cash and cash equivalents	$	27,386		$	8,817		$	25,902		$	5,624		$	—		$	67,729
	Other current assets		443			2,125			198,799			12,819			—			214,186
	Total current assets		27,829			10,942			224,701			18,443			—			281,915
	Property and equipment, net		—			1,227			3,119,328			86,646			—			3,207,201
	Investment in and advances to subsidiaries		654,624			1,437,787			1,056,395			1,804			(3,150,610	)		—
	Investment in joint venture		—			—			—			32,650			—			32,650
	Other assets		12,112			53,224			26,938			3,736			—			96,010
	Total assets	$	694,565		$	1,503,180		$	4,427,362		$	143,279		$	(3,150,610	)	$	3,617,776
	Accounts payable and accrued liabilities	$	15,732		$	64,159		$	67,992		$	28,831		$	—		$	176,714
	Current maturities of long-term debt		—			63,500			—			—			—			63,500
	Intercompany (receivable) payable		(285,369	)		(1,131,153	)		1,335,985			80,537			—			—
	Total current liabilities		(269,637	)		(1,003,494	)		1,403,977			109,368			—			240,214
	Long-term debt		180,252			2,682,255			—			—			—			2,862,507
	Other long term liabilities		—			—			34,756			6,792			—			41,548
	Shareholders’ equity (deficit)		783,950			(175,581	)		2,988,629			27,119			(3,150,610	)		473,507
	Total liabilities and shareholders’ equity	$	694,565		$	1,503,180		$	4,427,362		$	143,279		$	(3,150,610	)	$	3,617,776
Condensed Consolidating Statement of Operations	'
	Condensed Consolidating Statement of Operations (in thousands)
		Three Months Ended September 30, 2014
		Parent			OGIL			Subsidiary Guarantors			Non-Guarantors			Consolidated
	Revenues	$	—		$	—		$	203,271		$	4,247		$	207,518
	Operating costs and expenses		2,859			165			139,538			10,328			152,890
	Income (loss) from operations		(2,859	)		(165	)		63,733			(6,081	)		54,628
	Other, net		(4,508	)		(47,812	)		393			(8	)		(51,935	)
	Income (loss) before income taxes		(7,367	)		(47,977	)		64,126			(6,089	)		2,693
	Income tax provision (benefit)		—			—			7,563			746			8,309
	Net income (loss)	$	(7,367	)	$	(47,977	)	$	56,563		$	(6,835	)	$	(5,616	)
	Condensed Consolidating Statement of Operations (in thousands)
		Nine Months Ended September 30, 2014
		Parent			OGIL			Subsidiary Guarantors			Non-Guarantors			Consolidated
	Revenues	$	—		$	—		$	631,054		$	28,647		$	659,701
	Operating costs and expenses		6,590			475			384,450			40,835			432,350
	Income (loss) from operations		(6,590	)		(475	)		246,604			(12,188	)		227,351
	Other, net		(13,678	)		(148,924	)		(188,113	)		188,758			(161,957	)
	Income (loss) before income taxes		(20,268	)		(149,399	)		58,491			176,570			65,394
	Income tax provision (benefit)		—			—			33,800			2,208			36,008
	Net income (loss)	$	(20,268	)	$	(149,399	)	$	24,691		$	174,362		$	29,386
	Condensed Consolidating Statement of Operations (in thousands)
		Three Months Ended September 30, 2013
		Parent			OGIL			Subsidiary Guarantors			Non-Guarantors			Consolidated
	Revenues	$	—		$	—		$	163,506		$	12,379		$	175,885
	Operating costs and expenses		3,263			50			97,701			16,895			117,909
	Income (loss) from operations		(3,263	)		(50	)		65,805			(4,516	)		57,976
	Other, net		(4,446	)		(42,916	)		199			115			(47,048	)
	Income (loss) before income taxes		(7,709	)		(42,966	)		66,004			(4,401	)		10,928
	Income tax provision (benefit)		—			59			2,943			1,082			4,084
	Net income (loss)	$	(7,709	)	$	(43,025	)	$	63,061		$	(5,483	)	$	6,844
	Condensed Consolidating Statement of Operations (in thousands)
		Nine Months Ended September 30, 2013
		Parent			OGIL			Subsidiary Guarantors			Non-Guarantors			Consolidated
	Revenues	$	—		$	—		$	462,035		$	31,488		$	493,523
	Operating costs and expenses		6,504			112			281,541			46,508			334,665
	Income (loss) from operations		(6,504	)		(112	)		180,494			(15,020	)		158,858
	Other income (expense)		(10,687	)		(245,782	)		(1,647	)		3,883			(254,233	)
	Income (loss) before income taxes		(17,191	)		(245,894	)		178,847			(11,137	)		(95,375	)
	Income tax provision (benefit)		—			138			15,041			1,587			16,766
	Net income (loss)	$	(17,191	)	$	(246,032	)	$	163,806		$	(12,724	)	$	(112,141	)
Condensed Consolidating Statement of Cash Flows	'
	Condensed Consolidating Statement of Cash Flows (in thousands)
		Nine Months Ended September 30, 2014
		Parent			OGIL			Subsidiary Guarantors			Non-Guarantors			Consolidated
	Net cash provided by (used in) operating activities	$	(32,916	)	$	(102,868	)	$	301,548		$	9,218		$	174,982
	Net cash provided by (used in) investing activities		—			(217	)		(11,782	)		1,112			(10,887	)
	Net cash provided by (used in) financing activities		32,791			136,992			(294,842	)		(12,407	)		(137,466	)
	Net increase (decrease) in cash and cash equivalents		(125	)		33,907			(5,076	)		(2,077	)		26,629
	Cash and cash equivalents—beginning of period		3,489			5,468			37,488			8,241			54,686
	Cash and cash equivalents—end of period	$	3,364		$	39,375		$	32,412		$	6,164		$	81,315
	Condensed Consolidating Statement of Cash Flows (in thousands)
		Nine Months Ended September 30, 2013
		Parent			OGIL			Subsidiary Guarantors			Non-Guarantors			Consolidated
	Net cash provided by (used in) operating activities	$	(27,152	)	$	(254,448	)	$	206,052		$	9,947		$	(65,601	)
	Net cash provided by (used in) investing activities		—			(658	)		(473,474	)		(74,487	)		(548,619	)
	Net cash provided by (used in) financing activities		39,067			(158,544	)		235,381			63,319			179,223
	Net increase (decrease) in cash and cash equivalents		11,915			(413,650	)		(32,041	)		(1,221	)		(434,997	)
	Cash and cash equivalents—beginning of period		15,471			422,467			57,943			6,845			502,726
	Cash and cash equivalents—end of period	$	27,386		$	8,817		$	25,902		$	5,624		$	67,729

Organization_and_Recent_Events1

Organization and Recent Events - Additional Information (Detail) (USD $)

9 Months Ended

1 Months Ended

In Millions, unless otherwise specified

Sep. 30, 2014

Sep. 30, 2014

Mar. 31, 2013

Sep. 30, 2014

Oct. 31, 2012

Aug. 31, 2012

Jun. 30, 2014

Sep. 30, 2014

Oct. 31, 2012

Oct. 31, 2014

Oct. 31, 2014

Oct. 31, 2014

Sep. 30, 2014

Sep. 30, 2014

7.125% Senior Notes

7.125% Senior Notes

7.5% Senior Notes

7.5% Senior Notes

7.875% Senior Convertible Notes

2017 Term Loan

2017 Term Loan

2017 Term Loan

Subsequent Event

Subsequent Event

Subsequent Event

Ultra-Premium Jackup Rigs

Ultra-Deepwater Drillships

7.125% Senior Notes

7.5% Senior Notes

7.875% Senior Convertible Notes

Rigs

Drillship

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Date of incorporation

14-Nov-07

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of fleet

'

'

'

'

'

'

'

'

'

'

'

'

4

3

Operating fleet

'Our global fleet is currently located in India, Southeast Asia and West Africa.

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt instrument, repurchased

'

$40

'

$7

'

'

'

'

'

$5

$12.40

$13.40

'

'

Interest rate on notes

'

7.13%

7.13%

7.50%

7.50%

7.88%

'

'

'

'

'

7.88%

'

'

Debt instrument, extinguishment amount

'

'

'

'

'

'

42

'

'

'

'

'

'

'

Debt instrument, face amount

'

'

$775

'

$1,150

$56.50

'

$500

$500

'

'

'

'

'

Basis_of_Presentation_and_Sign3

Basis of Presentation and Significant Accounting Policies - Additional Information (Detail) (USD $)

3 Months Ended

9 Months Ended

1 Months Ended

9 Months Ended

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Mar. 31, 2013

Sep. 30, 2014

Sep. 30, 2014

Oct. 31, 2012

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Aug. 31, 2014

Nov. 30, 2012

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

5.5% Convertible Notes

5.5% Convertible Notes

7.125% Senior Notes

7.125% Senior Notes

7.125% Senior Notes

7.5% Senior Notes

7.5% Senior Notes

7.5% Senior Notes

7.875% Convertible Notes

7.875% Convertible Notes

Sigma Drilling Ltd

Sigma Drilling Ltd

Drilling Equipment

Drilling Equipment

Office Equipment

Office Equipment

Level 1

Level 1

Level 1

Level 1

Minimum

Maximum

Minimum

Maximum

Basis Of Presentation And Significant Accounting Policies [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Property, plant and equipment, useful lives

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'5 years

'35 years

'3 years

'7 years

Capitalized interest and amortization cost

$1,300,000

$9,500,000

$3,800,000

$15,900,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Equity method investments ownership percentage

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

41.90%

'

'

'

'

Distribution made to shareholders

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

55,500,000

'

'

'

'

'

Return of investment in joint venture

'

'

23,250,000

'

'

'

'

'

'

'

'

'

'

'

'

23,250,000

'

'

'

'

'

Share-based compensation expense

2,300,000

1,800,000

6,500,000

5,400,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair value of notes outstanding

'

'

'

'

'

'

86,000,000

'

'

649,500,000

'

'

1,100,000,000

'

54,900,000

'

'

'

'

'

'

Interest rate on notes

'

'

'

'

'

5.50%

'

7.13%

7.13%

'

7.50%

7.50%

'

7.88%

'

'

'

'

'

'

'

Outstanding derivative instruments

$0

'

$0

'

$0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Change_in_Investment_in_Joint_

Change in Investment in Joint Venture (Detail) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Equity Method Investments And Joint Ventures [Abstract]	'	'
Beginning Balance	$32,482	'
Return of investment	-23,250	'
Write-off of deferred construction supervision revenue	-7,344	'
Vantage share of net losses	-317	-345
Ending Balance	$1,571	$32,650

Reconciliation_of_Number_of_Sh

Reconciliation of Number of Shares Used for Basic and Diluted Earnings (Loss) Per Share Computations (Detail)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Earnings (loss) per share	'	'	'	'
Weighted average ordinary shares outstanding for basic EPS	306,761	302,682	306,046	301,962
Options and warrants	0	0	0	0
Convertible notes	0	0	0	0
Adjusted weighted average ordinary shares outstanding for diluted EPS	306,761	302,682	306,046	301,962

Recovered_Sheet1

Reconciliation Of Number of Shares Excluded From Diluted EPS Computations (Detail)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]	'	'	'	'
Future potentially dilutive ordinary shares excluded from diluted EPS	79,658	81,528	79,658	81,528
Options and Warrants	'	'	'	'
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]	'	'	'	'
Future potentially dilutive ordinary shares excluded from diluted EPS	2,097	2,469	2,097	2,469
Convertible Notes	'	'	'	'
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]	'	'	'	'
Future potentially dilutive ordinary shares excluded from diluted EPS	77,561	79,059	77,561	79,059

Transactions_with_F3_Capital_a1

Transactions with F3 Capital and Affiliates - Additional Information (Detail) (USD $)	0 Months Ended	9 Months Ended
In Millions, unless otherwise specified	Jun. 20, 2014	Sep. 30, 2014
7.875% Convertible Notes	'	'
Related Party Transaction [Line Items]	'	'
Interest rate on notes	'	7.88%
F3 Capital | Pending Litigation | Principal and Interest	'	'
Related Party Transaction [Line Items]	'	'
Actual damages recoverable, maximum amount	'	63
F3 Capital | Pending Litigation | Minimum | Penalties and Additional Interest	'	'
Related Party Transaction [Line Items]	'	'
Actual damages recoverable, maximum amount	'	35
F3 Capital | F3 Capital Note	'	'
Related Party Transaction [Line Items]	'	'
Interest rate on notes	'	5.00%
Outstanding interest amount of F3 Capital Note	'	10.00%
Promissory note maturity period	'	'January 2018
Additional aggregate principal amount of convertible notes	'	6.5
Discounted present value of weighted average cost of capital at the time of issue	'	27.8
F3 Capital | F3 Capital Note | Level 3 Measurement	'	'
Related Party Transaction [Line Items]	'	'
Current discounted present value of weighted average cost of capital	'	33.7
Nob Su Counter Claim	'	'
Related Party Transaction [Line Items]	'	'
Actual damages recoverable, maximum amount	8,000	'
Loss contingency, lawsuit filing date	'	'June 20, 2014
Drillship Construction Supervision Agreement	'	'
Related Party Transaction [Line Items]	'	'
Outstanding constructions supervision fee	'	3

Construction_Supervision_and_O1

Construction Supervision and Operations Management Agreements - Additional Information (Detail) (USD $)	1 Months Ended	9 Months Ended					1 Months Ended
	Nov. 30, 2012	Sep. 30, 2014	31-May-14	Dec. 31, 2013	Sep. 30, 2013	Oct. 31, 2012	Aug. 31, 2014	31-May-14	Nov. 30, 2012	Oct. 31, 2012
					Drillship	Orders	Sigma Drilling Ltd	Sigma Drilling Ltd	Sigma Drilling Ltd	Mexico Contractor
						Rigs
Construction Contracts [Line Items]	'	'	'	'	'	'	'	'	'	'
Number of ultra-deepwater drillships for supervise and manage construction	'	'	'	'	2	'	'	'	'	'
Investment in joint venture	'	$1,571,000	'	$32,482,000	$32,650,000	'	'	'	$31,000,000	'
Equity method investments ownership percentage	'	'	'	'	'	'	'	'	41.90%	'
Fixed monthly management fee receiving period during construction	'36 months	'	'	'	'	'	'	'	'	'
Termination fee	'	1,700,000	4,000,000	'	'	'	'	3,000,000	'	2,750,000
Distribution made to shareholders	'	'	'	'	'	'	55,500,000	'	'	'
Return of investment in joint venture	'	$23,250,000	'	'	'	'	$23,250,000	'	'	'
Number of jackup rigs	'	'	'	'	'	2	'	'	'	'

LongTerm_Debt_Detail

Long-Term Debt (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified
Debt Instrument [Line Items]	'	'	'
Long-term debt	$2,785,470	$2,915,550	'
Less current maturities of long-term debt and revolving credit facility	53,500	63,500	'
Long-term debt	2,731,970	2,852,050	2,862,507
Revolving credit agreement	'	'	'
Debt Instrument [Line Items]	'	'	'
Long-term debt	'	10,000	'
7.5% Senior Notes	'	'	'
Debt Instrument [Line Items]	'	'	'
Long-term debt	1,143,000	1,150,000	'
7.125% Senior Notes	'	'	'
Debt Instrument [Line Items]	'	'	'
Long-term debt	734,973	775,000	'
5.50% Convertible Notes	'	'	'
Debt Instrument [Line Items]	'	'	'
Long-term debt	92,999	90,077	'
7.875% Convertible Notes	'	'	'
Debt Instrument [Line Items]	'	'	'
Long-term debt	54,804	54,370	'
2017 Term Loan	'	'	'
Debt Instrument [Line Items]	'	'	'
Long-term debt	378,084	455,391	'
2019 Term Loan	'	'	'
Debt Instrument [Line Items]	'	'	'
Long-term debt	340,857	342,814	'
F3 Capital Note	'	'	'
Debt Instrument [Line Items]	'	'	'
Long-term debt	$40,753	$37,898	'

LongTerm_Debt_Parenthetical_De

Long-Term Debt (Parenthetical) (Detail) (USD $)

Sep. 30, 2014

Dec. 31, 2013

Jul. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Oct. 31, 2012

Sep. 30, 2014

Dec. 31, 2013

Mar. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

5.50% Convertible Notes

5.50% Convertible Notes

5.50% Convertible Notes

7.875% Convertible Notes

7.875% Convertible Notes

2017 Term Loan

2017 Term Loan

2017 Term Loan

2019 Term Loan

2019 Term Loan

2019 Term Loan

F3 Capital Note

F3 Capital Note

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt instrument, face amount

'

'

$100,000,000

'

'

$500,000,000

'

$500,000,000

$350,000,000

'

$350,000,000

'

'

Discount on senior secured notes

$7,001,000

$9,923,000

'

$1,696,000

$2,130,000

$4,916,000

$7,109,000

'

$3,893,000

$4,561,000

'

$12,747,000

$15,602,000

Debt_75_Senior_Notes_and_500_M

Debt - 7.5% Senior Notes and $500 Million 2017 Term Loan - Additional Information (Detail) (USD $)

3 Months Ended

9 Months Ended

1 Months Ended

9 Months Ended

1 Months Ended

1 Months Ended

9 Months Ended

1 Months Ended

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2013

Jun. 30, 2012

Jun. 30, 2012

Jun. 30, 2014

Sep. 30, 2014

Oct. 31, 2012

Oct. 31, 2012

Oct. 31, 2012

Nov. 30, 2012

Oct. 31, 2012

Oct. 31, 2012

Nov. 30, 2013

Nov. 30, 2013

Nov. 30, 2013

Nov. 30, 2012

Oct. 31, 2012

Sep. 30, 2014

Mar. 31, 2013

Oct. 31, 2012

Oct. 31, 2012

LIBOR Plus

Base Rate

2017 Term Loan

2017 Term Loan

2017 Term Loan

2017 Term Loan

2017 Term Loan

2017 Term Loan

2017 Term Loan

2017 Term Loan

2017 Term Loan Amended

2017 Term Loan Amended

2017 Term Loan Amended

2017 Term Loan Amended

7.5% Senior Notes

7.5% Senior Notes

O G I L Existing Debt

O G I L Existing Debt

O G I L Existing Debt

LIBOR Plus

LIBOR floor

Base Rate

First Year

Subsequent Years

LIBOR Plus

LIBOR floor

Base Rate

2017 Term Loan 7.5 % Senior Notes

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt instrument, face amount

'

'

'

'

'

'

$500,000,000

$500,000,000

'

'

'

'

'

$475,000,000

'

'

'

$1,150,000,000

'

'

'

'

Debt instrument, interest rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

7.50%

7.50%

'

'

'

Debt instrument, maturity date

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1-Nov-19

'

'

'

'

Debt instrument, interest rate term

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'Interest on outstanding 7.5% Senior Notes is payable semi-annually in arrears, commencing on May 1, 2013. Interest is computed on the basis of a 360-day year comprised of twelve 30-day months.

'

'

'

Debt instrument, issuance date

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1-May-13

'

'

'

'

Debt instrument, issuance rate of the face value

'

'

'

'

'

'

'

98.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest in term loan above LIBOR

'

'

'

3.50%

2.50%

'

'

'

5.00%

'

4.00%

'

'

'

4.00%

'

3.00%

'

'

'

'

'

Libor floor rate

'

'

'

'

'

'

'

'

'

1.25%

'

'

'

'

'

1.00%

'

'

'

'

'

'

Percentage of debt maturities payable

'

'

'

'

'

'

'

'

'

'

'

5.00%

10.00%

'

'

'

'

'

'

'

'

'

Debt instrument, payment terms

'

'

'

'

'

'

'The 2017 Term Loan has scheduled debt maturities, payable quarterly, of 5% in the first year and 10% in subsequent years with final maturity on October 25, 2017.

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Proceed from issuance of long term debt

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,600,000,000

Debt instrument, extinguishment amount

'

'

'

'

'

42,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

1,000,000,000

1,000,000,000

'

Non-cash charge on the written-off deferred financing cost

'

'

'

'

'

1,400,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt instrument repurchased, face amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

7,000,000

'

'

'

Gain (loss) on debt extinguishment

$1,051,000

($462,000)

($98,327,000)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

($74,000)

($92,300,000)

'

'

Debt_7125_Senior_Notes_and_350

Debt - 7.125% Senior Notes and $350 Million 2019 Term Loan - Additional Information (Detail) (USD $)

3 Months Ended

9 Months Ended

1 Months Ended

3 Months Ended

1 Months Ended

3 Months Ended

9 Months Ended

1 Months Ended

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2013

Jun. 30, 2012

Mar. 31, 2013

Jun. 30, 2013

Sep. 30, 2014

Mar. 31, 2013

Mar. 31, 2013

31-May-14

Feb. 28, 2014

Mar. 31, 2013

Sep. 30, 2014

Sep. 30, 2014

Mar. 31, 2013

Mar. 31, 2013

Oct. 31, 2012

LIBOR Plus

2019 Term Loan

2019 Term Loan

2019 Term Loan

2019 Term Loan

2019 Term Loan

7.125% Senior Notes

7.125% Senior Notes

7.125% Senior Notes

7.125% Senior Notes

7.125% Senior Notes

2019 Tem Loan 7.125 % Senior Notes

O G I L Existing Debt

O G I L Existing Debt

LIBOR Plus

LIBOR floor

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt instrument, face amount

'

'

'

'

$350,000,000

'

$350,000,000

'

'

'

'

$775,000,000

'

'

'

'

'

Debt instrument, maturity date

'

'

'

'

28-Mar-19

'

'

'

'

'

'

1-Apr-23

'

'

'

'

'

Debt instrument, interest rate

'

'

'

'

'

'

'

'

'

'

'

7.13%

7.13%

7.13%

'

'

'

Debt instrument, interest rate term

'

'

'

'

'

'

'

'

'

'

'

'

'

'Payable semi-annually in arrears, commencing on October 1, 2013.

'

'

'

Debt instrument, issuance rate of the face value

'

'

'

'

98.50%

'

'

'

'

'

'

'

'

'

'

'

'

Interest in term loan above LIBOR

'

'

'

3.50%

'

'

'

4.50%

'

'

'

'

'

'

'

'

'

Libor floor rate

'

'

'

'

'

'

'

'

1.25%

'

'

'

'

'

'

'

'

Percentage of debt maturities payable

'

'

'

'

'

1.00%

'

'

'

'

'

'

'

'

'

'

'

Proceed from issuance of long term debt

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,100,000,000

'

'

Debt instrument, extinguishment amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,000,000,000

1,000,000,000

Amount paid to retire debt

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,100,000,000

'

Gain (loss) on debt extinguishment

1,051,000

-462,000

-98,327,000

'

'

'

'

'

'

-11,000

-106,000

'

-977,000

'

'

-92,300,000

'

Accrued and unpaid Interest

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

18,200,000

'

Debt instrument repurchased, face amount

'

'

'

'

'

'

'

'

'

$1,500,000

$6,000,000

'

$32,500,000

$32,500,000

'

'

'

Debt_550_Senior_Convertible_No

Debt - 5.50% Senior Convertible Notes - Additional Information (Detail) (5.50% Convertible Notes, USD $)	1 Months Ended	9 Months Ended
	Jul. 31, 2013	Sep. 30, 2014
Debt Instrument [Line Items]	'	'
Debt instrument, face amount	$100,000,000	'
Debt instrument, maturity date	15-Jul-43	'
Debt instrument, issuance date	15-Jan-14	'
Debt instrument, interest rate	5.50%	'
Proceed from issuance of long term debt	96,500,000	'
Conversion rate of ordinary shares	'	418.6289
Conversion rate of amount of notes	'	1,000
Initial conversion price	'	$2.39
Long-term Debt, Fair Value	88,300,000	'
Percent of applicable conversion price required for redemption	'	150.00%
Debt Instrument, Redemption Price, Percentage	'	100.00%
Debt instrument repurchase terms	'	'cash at a price equal to 100% of the principal amount of the 5.50% Convertible Notes being repurchased, plus accrued and unpaid interest to, but excluding, the repurchase date
Debt instrument repurchase initial date	'	15-Jul-16
Debt instrument repurchase subsequent date	'	15-Jul-18
Redemption Period, One	'	'
Debt Instrument [Line Items]	'	'
Policy for redemption	'	'At least 20 trading days during any 30 consecutive trading day period ending within five trading days prior to the notice of redemption.
Debt Instrument, redemption, start date	'	15-Jul-16
Debt Instrument, redemption, end date	'	15-Jul-18
Redemption Period, One and Two	'	'
Debt Instrument [Line Items]	'	'
Policy for redemption	'	'equal to 100% of the principal amount of the 5.50% Convertible Notes being redeemed, plus accrued and unpaid interest to, but excluding, the redemption date
Redemption Period, Two	'	'
Debt Instrument [Line Items]	'	'
Debt Instrument, redemption, start date	'	15-Jul-16
Cobalt Explorer Construction Contract	'	'
Debt Instrument [Line Items]	'	'
Payment of construction contract charges	$59,500,000	'

Debt_7875_Senior_Convertible_N

Debt - 7.875% Senior Convertible Notes - Additional Information (Detail) (7.875% Senior Convertible Notes, USD $)	1 Months Ended	9 Months Ended
	Aug. 31, 2012	Sep. 30, 2014
Debt Instrument [Line Items]	'	'
Debt instrument, face amount	$56,500,000	'
Debt instrument, maturity date	1-Sep-42	'
Debt instrument, interest rate term	'	'Payable semiannually, in arrears, on March 1 and September 1 of each year, commencing on March?1, 2013
Debt instrument, interest rate	7.88%	'
Proceed from issuance of long term debt	48,300,000	'
Conversion rate of ordinary shares	'	476.1905
Conversion rate of amount of notes	'	1,000
Initial conversion price	'	$2.10
Long-term Debt, Fair Value	53,600,000	'
Redemption on or after September 1, 2015 and before September 1, 2017	'	'
Debt Instrument [Line Items]	'	'
Percent of applicable conversion price required for redemption	'	125.00%
Redemption on or before September 1, 2015	'	'
Debt Instrument [Line Items]	'	'
Percent of applicable conversion price required for redemption	'	150.00%
Redemption Period, Two	'	'
Debt Instrument [Line Items]	'	'
Debt Instrument, redemption, start date	'	1-Sep-15
Debt Instrument, redemption, end date	'	1-Sep-17
Redemption Period, One	'	'
Debt Instrument [Line Items]	'	'
Debt Instrument, redemption, end date	'	1-Sep-15
Policy for redemption	'	'At least 20 trading days during any 30 consecutive trading day period.
Redemption Period, One and Two	'	'
Debt Instrument [Line Items]	'	'
Policy for redemption	'	'The redemption purchase price is equal to 100% of the principal amount of the 5.50% Convertible Notes being redeemed, plus accrued and unpaid interest to, but excluding, the redemption date.
F3 Capital Note	'	'
Debt Instrument [Line Items]	'	'
Debt instrument, face amount	$6,500,000	'

Debt_Credit_Agreement_Addition

Debt - Credit Agreement - Additional Information (Detail) (USD $)	1 Months Ended					1 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2012	Mar. 31, 2013	Jun. 30, 2012	Mar. 31, 2013	Sep. 30, 2014	Jun. 30, 2012	Jun. 30, 2012
		2019 Tem Loan 7.125 % Senior Notes	Revolving credit agreement	Letter of Credit	Standby Letters of Credit	Base Rate	LIBOR Plus
				2019 Tem Loan 7.125 % Senior Notes
Debt Instrument [Line Items]	'	'	'	'	'	'	'
Revolving credit, maximum borrowing capacity	'	$200	$25	$32	'	'	'
Advances and letter of credit maturity date	25-Apr-17	'	'	'	'	'	'
Interest in term loan above LIBOR	'	'	'	'	'	2.50%	3.50%
Line of Credit Facility, Amount Outstanding	'	'	'	'	$21.50	'	'

Shareholders_Equity_Additional

Shareholders' Equity - Additional Information (Detail) (USD $)

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Long Term Incentive Plan

Long Term Incentive Plan

Long Term Incentive Plan

Long Term Incentive Plan

Long Term Incentive Plan

Long Term Incentive Plan

Long Term Incentive Plan

Long Term Incentive Plan

Long Term Incentive Plan

Long Term Incentive Plan

Director

Restricted Shares

Restricted Shares

Performance Share

Performance Share

Restricted Share Awards And Performance Unit

Maximum

Maximum

Minimum

Director

Additional Shares

Performance Share

Performance Share

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

Preferred shares, shares authorized

10,000,000

10,000,000

'

'

'

'

'

'

'

'

'

'

Preferred shares, par value

$0.00

$0.00

'

'

'

'

'

'

'

'

'

'

Preferred shares, shares issued

0

0

'

'

'

'

'

'

'

'

'

'

Preferred shares, shares outstanding

0

0

'

'

'

'

'

'

'

'

'

'

Ordinary shares, shares authorized

500,000,000

500,000,000

'

'

'

'

'

'

'

'

'

'

Ordinary shares, par value

$0.00

$0.00

'

'

'

'

'

'

'

'

'

'

Ordinary shares authorixed under Long-term incentive plan

'

'

'

'

'

'

'

'

'

45,000,000

'

'

Restricted shares granted

'

'

'

'

4,321,289

'

1,978,542

'

'

'

'

'

Time-vested restricted share awards

'

'

'

'

'4 years

'1 year

'3 years

'

'

'

'

'

Number of shares of target level

'

'

'

'

'

'

'

'

'

'

1.5

0

Share compensation award date value vested

'

'

'

'

'

'

'

'

$11,700,000

'

'

'

Average share price

'

'

'

'

$1.86

'

'

'

'

'

'

'

Performance unit target conversion ratio

'

'

'

'

'

'

1

'

'

'

'

'

Shares vested

'

'

'

'

2,836,634

'

668,550

96,176

'

'

'

'

Stock Issued During Period, Shares, Other

'

'

'

125,971

'

'

'

'

'

'

'

'

Stock issued during period, value, other

'

'

'

$230,000

'

'

'

'

'

'

'

'

Directors in lieu of cash for directors’ fees, description

'

'

'Additionally, in the nine months ended September 30 2014, we issued 125,971 shares, valued at approximately $230,000, to directors in lieu of cash for directors’ fees.

'

'

'

'

'

'

'

'

'

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (Minimum)	9 Months Ended
	Sep. 30, 2014
Minimum	'
Income Tax Contingency [Line Items]	'
Open tax year	'2008

Prepaid_Expenses_and_Other_Cur

Prepaid Expenses and Other Current Assets (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]	'	'
Prepaid insurance	$1,914	$13,178
Sales tax receivable	4,822	3,621
Income tax receivable	2,077	962
Current deferred tax asset	1,931	2,139
Other receivables	1,093	278
Deferred mobilization costs	'	665
Other	3,984	2,874
Prepaid expenses and other current assets	$15,821	$23,717

Property_and_Equipment_Net_Det

Property and Equipment, Net (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified
Property Plant And Equipment [Line Items]	'	'	'
Property and equipment	$3,509,267	$3,472,407	'
Accumulated depreciation	-376,280	-281,759	'
Property and equipment, net	3,132,987	3,190,648	3,207,201
Marine Services Equipment	'	'	'
Property Plant And Equipment [Line Items]	'	'	'
Property and equipment	3,382,927	3,376,631	'
Assets under Construction	'	'	'
Property Plant And Equipment [Line Items]	'	'	'
Property and equipment	104,911	75,993	'
Office and Technology Equipment	'	'	'
Property Plant And Equipment [Line Items]	'	'	'
Property and equipment	19,449	17,750	'
Leasehold Improvements	'	'	'
Property Plant And Equipment [Line Items]	'	'	'
Property and equipment	$1,980	$2,033	'

Other_Assets_Detail

Other Assets (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]	'	'	'
Deferred financing costs, net	$45,861	$56,145	'
Performance bond collateral	6,600	24,882	'
Deferred certification costs	7,670	6,494	'
Deferred agent fees	6,388	7,160	'
Deferred mobilization costs	15,144	4,066	'
Deferred income taxes	11	'	'
Deposits	1,409	1,280	'
Total other assets	$83,083	$100,027	$96,010

Accrued_Liabilities_Detail

Accrued Liabilities (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Payables And Accruals [Abstract]	'	'
Interest	$76,750	$43,064
Compensation	21,067	20,045
Insurance premiums	'	10,136
Unearned income	'	615
Deferred revenue	'	8,928
Property, service and franchise taxes	'	1,610
Income taxes payable	27,145	7,577
Other	6,206	4,407
Accrued liabilities	$131,168	$96,382

Other_Longterm_Liabilities_Det

Other Long-term Liabilities (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified
Accounts Payable And Accrued Liabilities Noncurrent [Abstract]	'	'	'
Deferred revenue	$75,034	$34,385	'
Deferred income taxes	2,409	2,801	'
Other non-current liabilities	10,523	8,454	'
Other long-term liabilities Total	$87,966	$45,640	$41,548

Business_Segment_and_Significa1

Business Segment and Significant Customer Information - Additional Information (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
	Customer	Customer	Segment	Customer
			Customer
Entity Wide Revenue Major Customer [Line Items]	'	'	'	'
Number of reportable segments	'	'	1	'
Number of customers accounted for revenues	4	3	4	3
Sales | Customer One	'	'	'	'
Entity Wide Revenue Major Customer [Line Items]	'	'	'	'
Percentage of revenue from outside customers	32.00%	31.00%	23.00%	32.00%
Sales | Customer Two	'	'	'	'
Entity Wide Revenue Major Customer [Line Items]	'	'	'	'
Percentage of revenue from outside customers	24.00%	30.00%	21.00%	26.00%
Sales | Customer Three	'	'	'	'
Entity Wide Revenue Major Customer [Line Items]	'	'	'	'
Percentage of revenue from outside customers	18.00%	10.00%	20.00%	11.00%
Sales | Customer Four	'	'	'	'
Entity Wide Revenue Major Customer [Line Items]	'	'	'	'
Percentage of revenue from outside customers	11.00%	'	15.00%	'

Supplemental_Condensed_Consoli2

Supplemental Condensed Consolidating Financial Information - Additional Information (Detail)	Sep. 30, 2014	Mar. 31, 2013	Sep. 30, 2014	Oct. 31, 2012
	7.125% Senior Notes	7.125% Senior Notes	7.5% Senior Notes	7.5% Senior Notes
Debt Instrument [Line Items]	'	'	'	'
Interest rate on notes	7.13%	7.13%	7.50%	7.50%

Condensed_Consolidating_Balanc

Condensed Consolidating Balance Sheet (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Condensed Balance Sheet Statements Captions [Line Items]	'	'	'	'
Cash and cash equivalents	$81,315	$54,686	$67,729	$502,726
Other current assets	304,878	'	214,186	'
Total current assets	386,193	304,986	281,915	'
Property and equipment, net	3,132,987	3,190,648	3,207,201	'
Investment in joint venture	1,571	32,482	32,650	'
Other assets	83,083	100,027	96,010	'
Total assets	3,603,834	3,628,143	3,617,776	'
Accounts payable and accrued liabilities	189,016	'	176,714	'
Current maturities of long-term debt	53,500	'	63,500	'
Total current liabilities	242,516	224,997	240,214	'
Long-term debt	2,731,970	2,852,050	2,862,507	'
Other long-term liabilities	87,966	45,640	41,548	'
Shareholders’ equity (deficit)	541,382	505,456	473,507	'
Total liabilities and shareholders’ equity	3,603,834	3,628,143	3,617,776	'
Consolidation, Eliminations	'	'	'	'
Condensed Balance Sheet Statements Captions [Line Items]	'	'	'	'
Property and equipment, net	185,820	'	'	'
Investment in and advances to subsidiaries	-3,143,193	'	-3,150,610	'
Total assets	-2,957,373	'	-3,150,610	'
Shareholders’ equity (deficit)	-2,957,373	'	-3,150,610	'
Total liabilities and shareholders’ equity	-2,957,373	'	-3,150,610	'
Parent	'	'	'	'
Condensed Balance Sheet Statements Captions [Line Items]	'	'	'	'
Cash and cash equivalents	3,364	3,489	27,386	15,471
Other current assets	615	'	443	'
Total current assets	3,979	'	27,829	'
Investment in and advances to subsidiaries	653,679	'	654,624	'
Other assets	9,546	'	12,112	'
Total assets	667,204	'	694,565	'
Accounts payable and accrued liabilities	19,004	'	15,732	'
Intercompany (receivable) payable	-296,590	'	-285,369	'
Total current liabilities	-277,586	'	-269,637	'
Long-term debt	188,556	'	180,252	'
Shareholders’ equity (deficit)	756,234	'	783,950	'
Total liabilities and shareholders’ equity	667,204	'	694,565	'
OGIL	'	'	'	'
Condensed Balance Sheet Statements Captions [Line Items]	'	'	'	'
Cash and cash equivalents	39,375	5,468	8,817	422,467
Other current assets	73	'	2,125	'
Total current assets	39,448	'	10,942	'
Property and equipment, net	1,121	'	1,227	'
Investment in and advances to subsidiaries	1,433,914	'	1,437,787	'
Other assets	42,702	'	53,224	'
Total assets	1,517,185	'	1,503,180	'
Accounts payable and accrued liabilities	62,048	'	64,159	'
Current maturities of long-term debt	53,500	'	63,500	'
Intercompany (receivable) payable	-765,545	'	-1,131,153	'
Total current liabilities	-649,997	'	-1,003,494	'
Long-term debt	2,543,414	'	2,682,255	'
Shareholders’ equity (deficit)	-376,232	'	-175,581	'
Total liabilities and shareholders’ equity	1,517,185	'	1,503,180	'
Guarantor Subsidiaries	'	'	'	'
Condensed Balance Sheet Statements Captions [Line Items]	'	'	'	'
Cash and cash equivalents	32,412	37,488	25,902	57,943
Other current assets	289,807	'	198,799	'
Total current assets	322,219	'	224,701	'
Property and equipment, net	2,836,674	'	3,119,328	'
Investment in and advances to subsidiaries	1,053,496	'	1,056,395	'
Other assets	26,158	'	26,938	'
Total assets	4,238,547	'	4,427,362	'
Accounts payable and accrued liabilities	83,325	'	67,992	'
Intercompany (receivable) payable	990,031	'	1,335,985	'
Total current liabilities	1,073,356	'	1,403,977	'
Other long-term liabilities	79,503	'	34,756	'
Shareholders’ equity (deficit)	3,085,688	'	2,988,629	'
Total liabilities and shareholders’ equity	4,238,547	'	4,427,362	'
Non-Guarantor Subsidiaries	'	'	'	'
Condensed Balance Sheet Statements Captions [Line Items]	'	'	'	'
Cash and cash equivalents	6,164	8,241	5,624	6,845
Other current assets	14,383	'	12,819	'
Total current assets	20,547	'	18,443	'
Property and equipment, net	109,372	'	86,646	'
Investment in and advances to subsidiaries	2,104	'	1,804	'
Investment in joint venture	1,571	'	32,650	'
Other assets	4,677	'	3,736	'
Total assets	138,271	'	143,279	'
Accounts payable and accrued liabilities	24,639	'	28,831	'
Intercompany (receivable) payable	72,104	'	80,537	'
Total current liabilities	96,743	'	109,368	'
Other long-term liabilities	8,463	'	6,792	'
Shareholders’ equity (deficit)	33,065	'	27,119	'
Total liabilities and shareholders’ equity	$138,271	'	$143,279	'

Condensed_Consolidating_Statem

Condensed Consolidating Statement of Operations (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Condensed Income Statements Captions [Line Items]	'	'	'	'
Revenues	$207,518	$175,885	$659,701	$493,523
Operating costs and expenses	152,890	117,909	432,350	334,665
Income from operations	54,628	57,976	227,351	158,858
Other, net	-51,935	-47,048	-161,957	-254,233
Income (loss) before income taxes	2,693	10,928	65,394	-95,375
Income tax provision (benefit)	8,309	4,084	36,008	16,766
Net income (loss)	-5,616	6,844	29,386	-112,141
Parent	'	'	'	'
Condensed Income Statements Captions [Line Items]	'	'	'	'
Operating costs and expenses	2,859	3,263	6,590	6,504
Income from operations	-2,859	-3,263	-6,590	-6,504
Other, net	-4,508	-4,446	-13,678	-10,687
Income (loss) before income taxes	-7,367	-7,709	-20,268	-17,191
Net income (loss)	-7,367	-7,709	-20,268	-17,191
OGIL	'	'	'	'
Condensed Income Statements Captions [Line Items]	'	'	'	'
Operating costs and expenses	165	50	475	112
Income from operations	-165	-50	-475	-112
Other, net	-47,812	-42,916	-148,924	-245,782
Income (loss) before income taxes	-47,977	-42,966	-149,399	-245,894
Income tax provision (benefit)	'	59	'	138
Net income (loss)	-47,977	-43,025	-149,399	-246,032
Guarantor Subsidiaries	'	'	'	'
Condensed Income Statements Captions [Line Items]	'	'	'	'
Revenues	203,271	163,506	631,054	462,035
Operating costs and expenses	139,538	97,701	384,450	281,541
Income from operations	63,733	65,805	246,604	180,494
Other, net	393	199	-188,113	-1,647
Income (loss) before income taxes	64,126	66,004	58,491	178,847
Income tax provision (benefit)	7,563	2,943	33,800	15,041
Net income (loss)	56,563	63,061	24,691	163,806
Non-Guarantor Subsidiaries	'	'	'	'
Condensed Income Statements Captions [Line Items]	'	'	'	'
Revenues	4,247	12,379	28,647	31,488
Operating costs and expenses	10,328	16,895	40,835	46,508
Income from operations	-6,081	-4,516	-12,188	-15,020
Other, net	-8	115	188,758	3,883
Income (loss) before income taxes	-6,089	-4,401	176,570	-11,137
Income tax provision (benefit)	746	1,082	2,208	1,587
Net income (loss)	($6,835)	($5,483)	$174,362	($12,724)

Condensed_Consolidating_Statem1

Condensed Consolidating Statement of Cash Flow (Detail) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Condensed Cash Flow Statements Captions [Line Items]	'	'
Net cash provided by (used in) operating activities	$174,982	($65,601)
Net cash provided by (used in) investing activities	-10,887	-548,619
Net cash provided by (used in) financing activities	-137,466	179,223
Net increase (decrease) in cash and cash equivalents	26,629	-434,997
Cash and cash equivalents—beginning of period	54,686	502,726
Cash and cash equivalents—end of period	81,315	67,729
Parent	'	'
Condensed Cash Flow Statements Captions [Line Items]	'	'
Net cash provided by (used in) operating activities	-32,916	-27,152
Net cash provided by (used in) financing activities	32,791	39,067
Net increase (decrease) in cash and cash equivalents	-125	11,915
Cash and cash equivalents—beginning of period	3,489	15,471
Cash and cash equivalents—end of period	3,364	27,386
OGIL	'	'
Condensed Cash Flow Statements Captions [Line Items]	'	'
Net cash provided by (used in) operating activities	-102,868	-254,448
Net cash provided by (used in) investing activities	-217	-658
Net cash provided by (used in) financing activities	136,992	-158,544
Net increase (decrease) in cash and cash equivalents	33,907	-413,650
Cash and cash equivalents—beginning of period	5,468	422,467
Cash and cash equivalents—end of period	39,375	8,817
Guarantor Subsidiaries	'	'
Condensed Cash Flow Statements Captions [Line Items]	'	'
Net cash provided by (used in) operating activities	301,548	206,052
Net cash provided by (used in) investing activities	-11,782	-473,474
Net cash provided by (used in) financing activities	-294,842	235,381
Net increase (decrease) in cash and cash equivalents	-5,076	-32,041
Cash and cash equivalents—beginning of period	37,488	57,943
Cash and cash equivalents—end of period	32,412	25,902
Non-Guarantor Subsidiaries	'	'
Condensed Cash Flow Statements Captions [Line Items]	'	'
Net cash provided by (used in) operating activities	9,218	9,947
Net cash provided by (used in) investing activities	1,112	-74,487
Net cash provided by (used in) financing activities	-12,407	63,319
Net increase (decrease) in cash and cash equivalents	-2,077	-1,221
Cash and cash equivalents—beginning of period	8,241	6,845
Cash and cash equivalents—end of period	$6,164	$5,624