Fair Value of Financial Instruments - Schedule of Fair Value Valuation of Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Liabilities
Settlement payable	$ 378,718	$ 418,840
Derivative liability, net	16,786	22,897
Total	5,606,424	5,666,340
Contingent consideration		2,957
Prices with Other Observable Inputs (Level 2)
Liabilities
Settlement payable	378,718	418,840
Derivative liability, net	16,786	22,897
Total	5,606,424	5,663,383
Prices with Unobservable Inputs (Level 3)
Liabilities
Total		2,957
Contingent consideration		2,957
7.875% Senior Secured Notes
Liabilities
Senior notes	2,410,313	2,410,313
7.875% Senior Secured Notes \| Prices with Other Observable Inputs (Level 2)
Liabilities
Senior notes	2,410,313	2,410,313
6.00% Senior Secured Notes
Liabilities
Senior notes		561,000
6.00% Senior Secured Notes \| Prices with Other Observable Inputs (Level 2)
Liabilities
Senior notes		561,000
4.75% Senior Secured Notes
Liabilities
Senior notes	569,288
4.75% Senior Secured Notes \| Prices with Other Observable Inputs (Level 2)
Liabilities
Senior notes	569,288
8.25% Senior Unsecured Notes
Liabilities
Senior notes		1,112,775
8.25% Senior Unsecured Notes \| Prices with Other Observable Inputs (Level 2)
Liabilities
Senior notes		1,112,775
7.125% Senior Unsecured Notes
Liabilities
Senior notes	621,000	601,500
7.125% Senior Unsecured Notes \| Prices with Other Observable Inputs (Level 2)
Liabilities
Senior notes	621,000	601,500
6.50% Senior Unsecured Notes
Liabilities
Senior notes	1,115,550
6.50% Senior Unsecured Notes \| Prices with Other Observable Inputs (Level 2)
Liabilities
Senior notes	1,115,550
Exchangeable Senior Notes - 4.00%, due June 15, 2024
Liabilities
Senior notes	399,769
Exchangeable Senior Notes - 4.00%, due June 15, 2024 \| Prices with Other Observable Inputs (Level 2)
Liabilities
Senior notes	399,769
Senior Secured Revolving Credit Facility
Liabilities
Senior secured loan	95,000	110,000
Senior Secured Revolving Credit Facility \| Prices with Other Observable Inputs (Level 2)
Liabilities
Senior secured loan	$ 95,000	110,000
Exchangeable Senior Unsecured Notes - 4.00%, due June 15, 2024
Liabilities
Senior notes		426,058
Exchangeable Senior Unsecured Notes - 4.00%, due June 15, 2024 \| Prices with Other Observable Inputs (Level 2)
Liabilities
Senior notes		$ 426,058

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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