Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (410)	$ 20,733	$ (3,345)	$ 13,808
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments, net of tax of $0, for each of the three and six months ended June 30, 2017 and 2016	139	(135)	173	31
Interest rate swap, net of tax of $0, for each of the three and six months ended June 30, 2017 and 2016	313	48	749	(436)
Total other comprehensive income (loss), net of tax	452	(87)	922	(405)
Total comprehensive income (loss)	$ 42	$ 20,646	$ (2,423)	$ 13,403