CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - 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	$ (3,625)	$ 3,392	$ (5,086)	$ 6,472
Currency translation adjustments, net of income tax	7,140	(1,795)	11,299	4,826
Comprehensive income	$ 3,515	$ 1,597	$ 6,213	$ 11,298