Sky Growth Merger - Source and Use of Funds (Details) (USD $)	0 Months Ended
	Sep. 28, 2012		Dec. 31, 2014	Dec. 31, 2013	Sep. 29, 2012
Business Acquisition [Line Items]
Cash and cash equivalents			$ 244,440,000	$ 130,080,000
Sky Growth Merger [Member]
Business Acquisition [Line Items]
Sponsor equity contribution	690,000,000
Cash and cash equivalents	144,791,000	[1]
Aggregate consideration	2,379,791,000
Cash purchase of equity	1,908,725,000	[1]
Prior debt and accrued interest	337,704,000	[1]
Total purchase price	2,246,429,000				2,246,429,000
Transaction costs	133,362,000
Total use of funds	2,379,791,000
Senior Secured Term Loan [Member] | Sky Growth Merger [Member]
Business Acquisition [Line Items]
Senior secured term loan	1,055,000,000
7.375% Senior Notes Due 2020 [Member] | Senior Notes [Member]
Business Acquisition [Line Items]
Debt interest rate	7.375%		7.375%	7.375%
Senior secured term loan	490,000,000		490,000,000
7.375% Senior Notes Due 2020 [Member] | Senior Notes [Member] | Sky Growth Merger [Member]
Business Acquisition [Line Items]
Debt interest rate	7.375%
Senior secured term loan	$ 490,000,000

[1] Adjusted to reflect the finalization of working capital adjustments noted above.