Condensed Consolidated Statements of Other Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Net loss	$ (3,484)	$ (16,847)	$ (20,281)	$ (41,685)
Other comprehensive income:
Foreign currency translation adjustment, net of tax charges / (credits) of $124, $(658), $396, and $(1,576), respectively	(614)	745	(1,578)	2,240
Other comprehensive income, net of tax	(614)	745	(1,578)	2,240
Total comprehensive loss	$ (4,098)	$ (16,102)	$ (21,859)	$ (39,445)