Income Taxes - Schedule of Deferred Tax Assets and (Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Deferred tax assets:
Valuation allowance	$ (19,400)
Successor [Member]
Deferred tax assets:
Accounts receivable	61,580	35,298
Inventories	15,945	12,670
Litigation settlements and contingencies	0	12,241
Accrued and prepaid expenses	8,506	8,219
Net operating losses and other carryforwards	19,475	15,015
Stock options and restricted shares	7,221	4,097
Other	3,782	4,790
Total deferred tax assets	116,509	92,330
Valuation allowance	(19,381)	(12,322)
Total deferred tax assets	97,128	80,008
Deferred tax liabilities:
Fixed assets	(21,358)	(20,621)
Deferred financing cost	(13,823)	(20,842)
Intangible assets	(240,675)	(275,399)
Other	(1,527)	(1,376)
Total deferred tax liabilities	(277,383)	(318,238)
Net deferred tax liability	$ (180,255)	$ (238,230)