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Notes and Other Debt - Schedule of Notes and Other Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 10, 2020	Dec. 31, 2019	Jun. 24, 2019
Debt Instrument [Line Items]
Principal amount of notes and other debt	$ 4,965,000		$ 5,224,747
Less unamortized discount, premium and debt issuance costs	(148,476)		(207,068)
Notes and other debt less unamortized discount and debt issuance costs	4,816,524		5,017,679
Senior Secured Term Loan B Facility
Debt Instrument [Line Items]
Principal amount of notes and other debt			2,044,728
Less unamortized discount, premium and debt issuance costs			(74,523)
Senior Secured Notes - 7.875% Due February 15, 2025
Debt Instrument [Line Items]
Principal amount of notes and other debt	2,250,000
Less unamortized discount, premium and debt issuance costs	(39,852)
Senior Unsecured Notes - 8.25% Due October 15, 2023
Debt Instrument [Line Items]
Principal amount of notes and other debt	1,110,000		1,110,000
Less unamortized discount, premium and debt issuance costs	(22,024)		(28,808)
Senior Secured Notes - 6.00% Due April 15, 2023
Debt Instrument [Line Items]
Principal amount of notes and other debt	550,000		550,000
Less unamortized discount, premium and debt issuance costs	(4,053)		(5,633)
Senior Unsecured Notes - 7.125% Due December 15, 2024
Debt Instrument [Line Items]
Principal amount of notes and other debt	600,000		600,000
Less unamortized discount, premium and debt issuance costs	(5,316)		(6,304)
Exchangeable Senior Unsecured Notes - 4.00%, due June 15, 2024
Debt Instrument [Line Items]
Principal amount of notes and other debt	345,000		345,000
Less unamortized discount, premium and debt issuance costs	(69,608)		(85,272)
Senior Secured Revolving Credit Facility
Debt Instrument [Line Items]
Principal amount of notes and other debt	110,000	$ 560,500	575,019	$ 575,900
Less unamortized discount, premium and debt issuance costs	$ (7,623)		$ (6,528)