CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) [Abstract]
Net loss	$ (128,615)	$ (31,318)	$ (5,561)
Other comprehensive income (loss), net of tax
Net change in fair value of interest rate swaps, net of income tax of $157, $1, and $44, respectively	239	103	171
Foreign currency translation adjustment	(502)	(2,294)	(1,812)
Total other comprehensive loss, net of tax	(263)	(2,191)	(1,641)
Comprehensive loss	$ (128,878)	$ (33,509)	$ (7,202)