Long-Term Debt - Schedule of Debt Components (Details) - USD ($) $ in Thousands		12 Months Ended
	Oct. 30, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Sep. 30, 2014
Debt Instrument [Line Items]
Debt issuance costs		$ (17,300)	$ (20,500)
Long-term debt, net		1,282,691	1,279,473
Repayments of long-term debt		0	0	$ 1,264,086
Series 2014-1 Class A-2 4.227% Fixed Rate Senior Secured Notes
Debt Instrument [Line Items]
Series 2014-1 Class A-2, 4.277% Fixed Rate Senior Secured Notes		$ 1,300,000	$ 1,300,000
Debt instrument, face amount					$ 1,300,000
Senior note interest rate		4.227%			4.277%
Senior Notes due October 2018, at a fixed rate of 9.5%
Debt Instrument [Line Items]
Senior note interest rate			9.50%
Repayments of long-term debt	$ 760,800