Debt Instrument, Periodic Payment, Principal, Percent of Original Face Amount

No definition available.

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- Definition

Debt Instrument, Variable Rate Basis, Floor

+ References

No definition available.

+ Details

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- Definition

Number of Drilling Units Securing Line of Credit Facility

+ References

No definition available.

+ Details

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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- Definition

Amount of assets pledged to secure a debt instrument.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

+ Details

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Balance Type:	debit
Period Type:	instant

- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Average fixed interest rate related to the group of interest rate derivatives.

+ References

No definition available.

+ Details

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- Definition

Floor rate on an interest rate derivative such as an interest rate floor or collar. If market rates falls below the floor rate, a payment or receipt is triggered on the contract.

+ References

No definition available.

+ Details

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.16)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.16)
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 20, 22
-Article 5

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 22
-Article 5

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Percentage of an entity's outstanding debt that is designated as a hedged item in cash flow, fair value, or net investment hedge.

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

The net cash inflow or outflow in aggregate debt due to repayments and proceeds from additional borrowings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

+ Details

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Balance Type:	debit
Period Type:	duration

- Details

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- Details

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- Details

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- Details

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- Details

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Debt - Amended Senior Secured Credit Facilities (Details)			12 Months Ended
	Jun. 26, 2014 USD ($) rig	Mar. 20, 2013 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Nov. 04, 2014 USD ($)	Mar. 31, 2014 USD ($)	Feb. 21, 2014 USD ($)
Senior Secured Credit Facilities \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Variable rate basis on debt issuance			LIBOR
Debt instrument, variable rate floor	1.00%
Senior Secured Credit Facilities \| Federal Funds Effective Swap Rate
Debt Instrument [Line Items]
Interest rate added to LIBOR	0.50%
Senior Secured Credit Facilities \| Eurodollar
Debt Instrument [Line Items]
Variable rate basis on debt issuance			1-month LIBOR
Interest rate added to LIBOR	1.00%
$1450 facility \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Interest rate added to LIBOR		7.50%
Line of credit facility, commitment fee percentage		1.50%
$550 facility
Debt Instrument [Line Items]
Long-term line of credit	$ 426,300,000
Interest Rate Swap
Debt Instrument [Line Items]
Derivative, average fixed interest rate			1.23%
Revolving Credit Facility
Debt Instrument [Line Items]
Number of drilling units securing line of credit facility \| rig	6
Assets pledged as collateral			$ 3,800,000,000
Revolving Credit Facility \| Senior Secured Credit Facilities
Debt Instrument [Line Items]
Maximum borrowing capacity			100,000,000				$ 100,000,000
Long-term line of credit			50,000,000
Line of credit facility, commitment fee percentage	0.50%
Proceeds from (repayments of) debt			50,000,000
Revolving Credit Facility \| Senior Secured Credit Facilities \| Base Rate
Debt Instrument [Line Items]
Interest rate added to LIBOR	1.25%
Revolving Credit Facility \| Senior Secured Credit Facilities \| Eurodollar
Debt Instrument [Line Items]
Interest rate added to LIBOR	2.25%
Revolving Credit Facility \| $1450 facility
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 1,450,000,000	1,450,000,000	$ 1,450,000,000
Long-term line of credit					$ 433,000,000	$ 443,000,000
Assets pledged as collateral			$ 734,800,000
Variable rate basis on debt issuance			LIBOR
Term Loans \| Senior Secured Credit Facilities
Debt Instrument [Line Items]
Maximum borrowing capacity							$ 1,800,000,000.0
Variable rate basis on debt issuance			3 Month LIBOR
Percentage of debt hedged by derivatives			100.00%
Derivative, floor interest rate			1.00%
Term Loans \| Senior Secured Credit Facilities \| Federal Funds Effective Swap Rate
Debt Instrument [Line Items]
Interest rate added to LIBOR	2.00%
Term Loans \| Senior Secured Credit Facilities \| Base Rate
Debt Instrument [Line Items]
Interest rate added to LIBOR	2.00%
Term Loans \| Senior Secured Credit Facilities \| Eurodollar
Debt Instrument [Line Items]
Interest rate added to LIBOR	3.00%
Term Loans \| Additional Term Loans
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 1,100,000,000.0
Term Loans \| Term Loan
Debt Instrument [Line Items]
Long-term line of credit			$ 2,894,700,000
Percent of original face amount of debt	0.25%
Term Loans \| Interest Rate Swap \| Senior Secured Credit Facilities
Debt Instrument [Line Items]
Derivative, average fixed interest rate			2.49%