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Fair Value of Financial Instruments - Schedule of Fair Value Valuation of Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016	Aug. 31, 2016
Liabilities
Derivative liability	$ 1,536	$ 6,102
Contingent consideration	90,719	98,600	$ 98,600
Total	4,333,474	4,394,138
Senior Secured Term Loan B Facility
Liabilities
Senior secured loan	2,100,069	2,139,586
6.00% Senior Secured Notes
Liabilities
Senior notes	567,875	569,250
8.25% Senior Unsecured Notes
Liabilities
Senior notes	1,168,275	1,176,600
7.125% Senior Unsecured Notes
Liabilities
Senior notes	405,000	404,000
Prices with Other Observable Inputs (Level 2)
Liabilities
Derivative liability	1,536	6,102
Total	4,242,755	4,295,538
Prices with Other Observable Inputs (Level 2) \| Senior Secured Term Loan B Facility
Liabilities
Senior secured loan	2,100,069	2,139,586
Prices with Other Observable Inputs (Level 2) \| 6.00% Senior Secured Notes
Liabilities
Senior notes	567,875	569,250
Prices with Other Observable Inputs (Level 2) \| 8.25% Senior Unsecured Notes
Liabilities
Senior notes	1,168,275	1,176,600
Prices with Other Observable Inputs (Level 2) \| 7.125% Senior Unsecured Notes
Liabilities
Senior notes	405,000	404,000
Prices with Unobservable Inputs (Level 3)
Liabilities
Contingent consideration	90,719	98,600
Total	$ 90,719	$ 98,600