Debt (Details) (USD $) In Thousands, unless otherwise specified									9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014 First Lien Term Loans [Member] Secured Debt [Member]	Dec. 31, 2013 First Lien Term Loans [Member] Secured Debt [Member]	Sep. 30, 2014 Second Lien Term Loans [Member] Secured Debt [Member]	Dec. 31, 2013 Second Lien Term Loans [Member] Secured Debt [Member]	Sep. 30, 2014 First Lien Revolving Credit Facility [Member] Revolving Credit Facility [Member]	Dec. 31, 2013 First Lien Revolving Credit Facility [Member] Revolving Credit Facility [Member]	Sep. 30, 2014 London Interbank Offered Rate (LIBOR) [Member] First Lien Term Loans [Member] Secured Debt [Member]	Sep. 30, 2014 London Interbank Offered Rate (LIBOR) [Member] Second Lien Term Loans [Member] Secured Debt [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Unamortized discount	$ (4,865)	$ (5,409)
Capital lease obligations	948	1,324
Total long-term debt and capital lease obligations	328,396	329,840	212,313	213,925	120,000	120,000	0	0
Current portion of long-term debt and capital lease obligations	(2,150)	(2,526)
Total long-term debt and capital lease obligations, net	$ 326,246	$ 327,314
Variable interest rate (percent)									3.50%	10.00%
LIBOR Floor									1.00%	1.25%