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The cash outflow for cash inducement premiums.

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Long-Term Debt (Details) $ / shares in Units, $ in Thousands								12 Months Ended			24 Months Ended
	Jun. 01, 2021 USD ($)	May 13, 2021 USD ($) $ / shares shares	Jan. 26, 2021 USD ($)	Jan. 12, 2021 USD ($) $ / shares shares	Jan. 04, 2021 USD ($)	Sep. 02, 2020 USD ($)	Aug. 21, 2020 USD ($) D shares	Dec. 31, 2023 USD ($) shares	Dec. 31, 2022 USD ($) shares	Dec. 31, 2021 USD ($)	Dec. 31, 2023 USD ($)	Nov. 02, 2021 USD ($)	Oct. 18, 2021 USD ($)	Jul. 01, 2021 USD ($)	Dec. 21, 2016 USD ($)	Mar. 17, 2015 USD ($)	Sep. 18, 2014 USD ($)	May 06, 2014 USD ($)
Long-Term Debt
Total principal								$ 1,547,571	$ 1,195,717		$ 1,547,571
Unamortized debt issuance costs								(9,975)	(12,241)		(9,975)
Long-term debt								1,537,596	1,183,476		1,537,596
Payments of deferred financing costs								605	814	$ 31,474
Aggregate principal amount converted								30,131	24,242
Loss on convertible note equitizations								374	169	50,777
Gain (loss) on extinguishment of debt repurchased									(46,027)	(93,191)
Debt Repurchase Program
Long-Term Debt
Gain (loss) on extinguishment of debt repurchased									46,000	31,000
Credit Facility
Long-Term Debt
Credit facility								417,200	34,800		417,200
Current borrowing base								3,500,000	3,500,000		3,500,000
Lender commitments								$ 1,600,000	1,500,000		1,600,000
Debt maturity threshold days								180 days
Available borrowing capacity								$ 692,000			692,000
Outstanding letters of credit								$ 501,000	$ 504,000		$ 501,000
Weighted average interest rate (as a percent)								7.71%	6.42%		7.71%
Credit Facility \| Minimum
Long-Term Debt
Commitment fees on the unused portion during any period that is not an Investment Grade Period (as a percent)								0.375%
Credit Facility \| Maximum
Long-Term Debt
Commitment fees on the unused portion during any period that is not an Investment Grade Period (as a percent)								0.50%
5.125 senior notes due 2022
Long-Term Debt
Senior notes																		$ 600,000
Total principal																	$ 500,000
Interest rate (as a percent)																		5.125%
Issue price as percentage of par value																	100.50%	100.00%
5.125 senior notes due 2022 \| Debt Repurchase Program
Long-Term Debt
Amount of debt repurchased										661,000
5.625% senior notes due 2023
Long-Term Debt
Senior notes																$ 750,000
Interest rate (as a percent)																5.625%
Issue price as percentage of par value																100.00%
5.625% senior notes due 2023 \| Debt Repurchase Program
Long-Term Debt
Amount of debt repurchased										$ 574,000
5.00% senior notes due 2025
Long-Term Debt
Senior notes															$ 600,000
Interest rate (as a percent)															5.00%
Issue price as percentage of par value															100.00%
5.00% senior notes due 2025 \| Debt Repurchase Program
Long-Term Debt
Redemption price										102.00%
Amount of debt repurchased									$ 585,000	$ 5,000
Percentage of redeemed amount									101.25%
8.375% Senior Notes Due 2026
Long-Term Debt
Senior notes					$ 500,000			$ 96,870	$ 96,870		$ 96,870
Interest rate (as a percent)					8.375%			8.375%	8.375%		8.375%
Issue price as percentage of par value					100.00%
Redemption price of the debt instrument in the event of change of control (as a percent)					101.00%
8.375% Senior Notes Due 2026 \| Debt Repurchase Program
Long-Term Debt
Redemption amount														$ 175,000
Redemption price										108.375%
Amount of debt repurchased									$ 228,000	$ 175,000
Carrying value of debt repurchased									$ 228,000
Weighted average percentage premium on repurchases of debt									109.00%
8.375% Senior Notes Due 2026 \| On or after January 15, 2024
Long-Term Debt
Redemption price					104.188%
8.375% Senior Notes Due 2026 \| On or after January 15, 2026
Long-Term Debt
Redemption price					100.00%
8.375% Senior Notes Due 2026 \| Prior to January 15, 2024
Long-Term Debt
Redemption price					100.00%
7.625% Senior Notes Due 2029
Long-Term Debt
Senior notes			$ 700,000					$ 407,115	$ 407,115		$ 407,115
Interest rate (as a percent)			7.625%					7.625%	7.625%		7.625%
Redemption amount												$ 116,000	$ 116,000
Redemption price of the debt instrument in the event of change of control (as a percent)			101.00%
Amount of debt repurchased									$ 177,000
7.625% Senior Notes Due 2029 \| Debt Repurchase Program
Long-Term Debt
Amount of debt repurchased									$ 177,000	$ 116,000
Weighted average percentage premium on repurchases of debt									106.00%
Percentage of redeemed amount										107.625%
7.625% Senior Notes Due 2029 \| On or after February 1, 2024
Long-Term Debt
Redemption price			103.813%
7.625% Senior Notes Due 2029 \| On or after February 1, 2027
Long-Term Debt
Redemption price			100.00%
7.625% Senior Notes Due 2029 \| On or before February 1, 2024
Long-Term Debt
Redemption price of the debt instrument if redeemed with the proceeds of certain equity offerings (as a percent)			107.625%
Percentage of the principal amount of the debt instrument which the entity may redeem with the proceeds from certain equity offerings			35.00%
7.625% Senior Notes Due 2029 \| Prior to February 1, 2024
Long-Term Debt
Redemption price			100.00%
5.375% senior notes due 2030
Long-Term Debt
Senior notes	$ 600,000							$ 600,000	$ 600,000		$ 600,000
Interest rate (as a percent)	5.375%							5.375%	5.375%		5.375%
Redemption price of the debt instrument in the event of change of control (as a percent)	101.00%
5.375% senior notes due 2030 \| On or after March 1, 2025
Long-Term Debt
Redemption price	102.688%
5.375% senior notes due 2030 \| On or after March 1, 2028
Long-Term Debt
Redemption price	100.00%
5.375% senior notes due 2030 \| On or Before March 1, 2025
Long-Term Debt
Redemption price of the debt instrument if redeemed with the proceeds of certain equity offerings (as a percent)	105.375%
Percentage of the principal amount of the debt instrument which the entity may redeem with the proceeds from certain equity offerings	35.00%
5.375% senior notes due 2030 \| Prior to March 1, 2025
Long-Term Debt
Redemption price	100.00%
4.25% convertible senior notes due 2026
Long-Term Debt
Amount of debt extinguished										$ 206,000
Convertible senior notes								$ 26,386	$ 56,932		$ 26,386
Total principal						$ 37,500	$ 250,000
Unamortized discount, net							$ 116,000
Unamortized debt issuance costs								(404)	(1,159)		(404)
Long-term debt								$ 25,982	$ 55,773		$ 25,982
Interest rate (as a percent)							4.25%	4.25%	4.25%		4.25%
Amount of debt converted											$ 55,000
Shares issued on conversion \| shares							230.2026
Issuance of convertible notes						278,500
Payments of deferred financing costs						$ 9,000
If-converted value								$ 138,000			138,000
If-converted value above principal amount								112,000			$ 112,000
Aggregate principal amount converted								9,000	$ 20,000
Aggregate principal amount induced into conversion								$ 21,000	$ 5,000
Shares issued to cover conversions (in shares) \| shares								7,000,000	6,000,000
Cash inducement premium								$ 400	$ 200
Effective interest rate (as a percent)							15.30%			15.30%
Interest expense								$ 2,000	$ 3,000	$ 11,000
4.25% convertible senior notes due 2026 \| January Share Offering
Long-Term Debt
Amount of debt converted				$ 150,000
Shares issued on conversion \| shares				275.3525
Number of shares of common stock issued (in shares) \| shares				31,400,000
Share price \| $ / shares				$ 6.35
Line of credit proceeds used to repurchase convertible notes				$ 63,000
Loss on convertible note equitizations										39,000
Gain (loss) on extinguishment of debt repurchased										41,000
4.25% convertible senior notes due 2026 \| May Share Offering
Long-Term Debt
Carrying value of debt repurchased		$ 56,000
Shares issued on conversion \| shares		245.2802
Number of shares of common stock issued (in shares) \| shares		11,600,000
Share price \| $ / shares		$ 11.01
Line of credit proceeds used to repurchase convertible notes		$ 26,000
Loss on convertible note equitizations										12,000
Gain (loss) on extinguishment of debt repurchased										$ 21,000
4.25% convertible senior notes due 2026 \| Convertible debt threshold minimum percentage
Long-Term Debt
Stock price trigger							98.00%
Trading days \| D							5
Consecutive trading days \| D							10
4.25% convertible senior notes due 2026 \| Convertible debt threshold maximum percentage
Long-Term Debt
Stock price trigger							130.00%
Trading days \| D							20
Consecutive trading days \| D							30
4.25% convertible senior notes due 2026 \| Fair value
Long-Term Debt
Fair value							$ 172,000