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Notes and Other Debt - Schedule of Notes and Other Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Mar. 31, 2021	Feb. 02, 2021	Dec. 31, 2020	Dec. 10, 2020
Debt Instrument [Line Items]
Debt instrument carrying amount	$ 4,970,000			$ 4,965,000
Less unamortized discount, premium and debt issuance costs	(85,590)			(148,476)
Notes and other debt less unamortized discount, premium and debt issuance costs	4,884,410			4,816,524
Senior Secured Notes - 6.00% Due April15, 2023
Debt Instrument [Line Items]
Debt instrument carrying amount				550,000
Less unamortized discount, premium and debt issuance costs				(4,053)
Senior Secured Notes - 7.875% Due February 15, 2025
Debt Instrument [Line Items]
Debt instrument carrying amount	2,250,000			2,250,000
Less unamortized discount, premium and debt issuance costs	(35,730)			(39,852)
Senior Secured Notes - 4.75% Due April15, 2028
Debt Instrument [Line Items]
Debt instrument carrying amount	570,000
Less unamortized discount, premium and debt issuance costs	(9,479)
Senior Unsecured Notes - 8.25% Due October 15, 2023
Debt Instrument [Line Items]
Debt instrument carrying amount		$ 58,800	$ 1,110,000	1,110,000
Less unamortized discount, premium and debt issuance costs				(22,024)
Senior Unsecured Notes - 4.00%, Due June 15, 2024
Debt Instrument [Line Items]
Debt instrument carrying amount	345,000			345,000
Less unamortized discount, premium and debt issuance costs	(7,359)			(69,608)
Senior Unsecured Notes - 7.125% Due December 15, 2024
Debt Instrument [Line Items]
Debt instrument carrying amount	600,000			600,000
Less unamortized discount, premium and debt issuance costs	(4,794)			(5,316)
Senior Unsecured Notes - 6.50%, Due February 15, 2029
Debt Instrument [Line Items]
Debt instrument carrying amount	1,110,000
Less unamortized discount, premium and debt issuance costs	(21,668)
Senior Secured Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument carrying amount	95,000			110,000	$ 560,500
Less unamortized discount, premium and debt issuance costs	$ (6,560)			$ (7,623)