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Leverage ratio.

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Long term debt principal amount retired.

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The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.

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

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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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.

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Weighted average interest rate of debt outstanding.

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The cash outflow for the extinguishment of long-term borrowing, with the highest claim on the assets of the entity in case of bankruptcy or liquidation, before its maturity.

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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.

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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Amount of cash outflow for cost from early extinguishment and prepayment of debt. Includes, but is not limited to, third-party cost, premium paid, and other fee paid to lender directly for debt extinguishment or debt prepayment. Excludes accrued interest.

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Long-term Debt - Narrative (Details) - USD ($)				1 Months Ended		12 Months Ended
Long-term Debt - Narrative (Details) - USD ($)	Jun. 29, 2021	Jun. 28, 2021	Mar. 04, 2021	Mar. 31, 2021	May 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Jun. 30, 2021
Debt Instrument [Line Items]
Repayments of long-term debt			$ 1,260,000,000
Premiums paid over face value			97,900,000
Payment of accrued interest			12,500,000
Payments of debt issuance costs			1,100,000
Loss on early extinguishment of debt						$ (352,599,000)	$ (861,000)	$ 0
Bank credit facility
Debt Instrument [Line Items]
Bank credit facility						$ 1,400,000,000
Weighted average interest rate on borrowings						2.71%	3.48%
Minimum \| Bank credit facility
Debt Instrument [Line Items]
Commitment fee on unused borrowing base						0.375%
Leverage ratio						100.00%
Current ratio						100.00%
Maximum \| Bank credit facility
Debt Instrument [Line Items]
Commitment fee on unused borrowing base						0.50%
Leverage ratio						400.00%
Current ratio						100.00%
LIBOR \| Minimum \| Bank credit facility
Debt Instrument [Line Items]
Spread rate for interest rate on credit facility						2.25%
LIBOR \| Maximum \| Bank credit facility
Debt Instrument [Line Items]
Spread rate for interest rate on credit facility						3.25%
Base Rate \| Minimum \| Bank credit facility
Debt Instrument [Line Items]
Spread rate for interest rate on credit facility						1.25%
Base Rate \| Maximum \| Bank credit facility
Debt Instrument [Line Items]
Spread rate for interest rate on credit facility						2.25%
7.5% Senior Notes due 2025
Debt Instrument [Line Items]
Interest rate on debt instrument				7.50%
Repayments of long-term debt			375,000,000
Early repayment of senior debt					$ 5,600,000
Principal amount of long term debt retired					4,200,000
Loss on early extinguishment of debt					$ (900,000)
7.5% Senior Notes due 2025 \| Common Stock
Debt Instrument [Line Items]
Debt conversion, converted instrument, shares of common stock issued (in shares)					767,096
Amount of debt converted					$ 5,000,000
9.75% Senior Notes Due 2026
Debt Instrument [Line Items]
Debt instrument, face amount							$ 800,000,000
Interest rate on debt instrument				9.75%
Proceeds of issued senior notes							$ 737,100,000
Repayments of long-term debt	$ 978,600,000		$ 777,100,000
Premiums paid over face value	74,000,000
Payment of accrued interest	$ 31,700,000
Loss on early extinguishment of debt						$ (352,600,000)
6.75% Senior Notes Due 2029
Debt Instrument [Line Items]
Debt instrument, face amount				$ 1,250,000,000
Interest rate on debt instrument				6.75%
Proceeds of issued senior notes				$ 1,240,000,000
5.875% Senior Notes Due 2030
Debt Instrument [Line Items]
Debt instrument, face amount									$ 965,000,000
Interest rate on debt instrument		5.875%
Proceeds of issued senior notes		$ 949,500,000