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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Fair Value Measurements - Debt instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Nov. 30, 2022	Jan. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Jan. 31, 2017
Carrying Value
Gross carrying value of debt	$ 2,559,996			$ 3,293,600
Less: Deferred financing costs	22,456			30,805
Long-term debt	2,537,540			3,262,795
Fair Value
Debt at fair value	$ 2,455,050			$ 3,206,746
5.50% senior notes due January 2023
Fair Value of Financial Instruments
Interest rate on senior notes (as a percent)	5.50%	5.50%		5.50%
Effective Interest Rate	6.13%			5.87%
Carrying Value
Gross carrying value of debt				$ 24,446
Fair Value
Debt at fair value				$ 24,736
5.10% senior notes due September 2023
Fair Value of Financial Instruments
Interest rate on senior notes (as a percent)	5.10%			5.10%
Effective Interest Rate	5.46%			5.42%
Carrying Value
Gross carrying value of debt	$ 52,004			$ 82,703
Fair Value
Debt at fair value	$ 51,354			$ 84,044
0.75% senior exchangeable notes due January 2024
Fair Value of Financial Instruments
Interest rate on senior notes (as a percent)	0.75%			0.75%		0.75%
Effective Interest Rate	0.97%			5.90%
Carrying Value
Gross carrying value of debt	$ 177,005			$ 259,839
Fair Value
Debt at fair value	$ 164,898			$ 257,730
5.75% senior notes due February 2025
Fair Value of Financial Instruments
Interest rate on senior notes (as a percent)	5.75%			5.75%
Effective Interest Rate	6.02%			6.03%
Carrying Value
Gross carrying value of debt	$ 474,092			$ 548,458
Fair Value
Debt at fair value	$ 454,773			$ 508,881
6.50% senior priority guaranteed notes due February 2025
Fair Value of Financial Instruments
Interest rate on senior notes (as a percent)			6.50%	6.50%
Effective Interest Rate				6.50%
Carrying Value
Gross carrying value of debt				$ 50,485
Fair Value
Debt at fair value				$ 50,490
9.00% senior priority guaranteed notes due February 2025
Fair Value of Financial Instruments
Interest rate on senior notes (as a percent)	9.00%			9.00%	9.00%
Effective Interest Rate	9.00%			9.00%
Carrying Value
Gross carrying value of debt	$ 209,384			$ 218,082
Fair Value
Debt at fair value	$ 213,507			$ 226,914
7.25% senior guaranteed notes due January 2026
Fair Value of Financial Instruments
Interest rate on senior notes (as a percent)	7.25%			7.25%
Effective Interest Rate	7.52%			7.52%
Carrying Value
Gross carrying value of debt	$ 557,902			$ 559,978
Fair Value
Debt at fair value	$ 529,432			$ 522,079
7.375% senior priority guaranteed notes due May 2027
Fair Value of Financial Instruments
Interest rate on senior notes (as a percent)	7.375%			7.375%
Effective Interest Rate	7.74%			7.74%
Carrying Value
Gross carrying value of debt	$ 700,000			$ 700,000
Fair Value
Debt at fair value	$ 686,686			$ 724,906
7.50% senior guaranteed notes due January 2028
Fair Value of Financial Instruments
Interest rate on senior notes (as a percent)	7.50%			7.50%
Effective Interest Rate	7.70%			7.70%
Carrying Value
Gross carrying value of debt	$ 389,609			$ 389,609
Fair Value
Debt at fair value	$ 354,400			$ 346,966
2018 revolving credit facility
Fair Value of Financial Instruments
Effective Interest Rate				3.72%
Carrying Value
Gross carrying value of debt				$ 460,000
Fair Value
Debt at fair value				$ 460,000