CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) [Abstract]
Net income (loss)	$ 15,261	$ (13,897)
Other comprehensive income, net of tax
Net change in fair value of interest rate swaps, net of tax	0	24
Foreign currency translation adjustment, net of tax	111	1,022
Total other comprehensive income, net of tax	111	1,046
Comprehensive income (loss)	$ 15,372	$ (12,851)