Condensed Consolidated Statements Of Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance at Dec. 31, 2014		$ 1,149,360	$ (245,340)	$ (1,955)	$ 902,065
Balance, shares at Dec. 31, 2014	100
Equity compensation expense		6,814			6,814
Issuance of shares in connection with equity compensation plans, net of taxes		305			305
Repurchase of Parent common stock		(4,351)			(4,351)
Capital contribution from Parent		166,576			166,576
Net income (loss)			(30,728)		(30,728)
Foreign currency translation adjustment				(531)	(531)
Change in fair value of interest rate swap, net of taxes				(445)	(445)
Balance at Sep. 30, 2015		1,318,704	(276,068)	(2,931)	1,039,705
Balance, shares at Sep. 30, 2015	100
Balance at Dec. 31, 2015		1,319,754	(341,409)	(2,656)	975,689
Balance, shares at Dec. 31, 2015	100
Equity compensation expense		8,089			8,089
Repurchase of Parent common stock		(2,258)			(2,258)
Net income (loss)			(26,306)		(26,306)
Foreign currency translation adjustment				240	240
Change in fair value of interest rate swap, net of taxes				(2,303)	(2,303)
Balance at Sep. 30, 2016		$ 1,325,585	$ (367,715)	$ (4,719)	$ 953,151
Balance, shares at Sep. 30, 2016	100