Condensed Consolidated Statements of Other Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Net loss	$ (6,471)	$ (16,766)	$ (16,797)	$ (24,838)
Other comprehensive (loss) income:
Foreign currency translation adjustment, net of tax charges / (credits) of $651, $(918), $272, and $(918), respectively	(1,521)	1,276	(964)	1,495
Other comprehensive (loss) income, net of tax	(1,521)	1,276	(964)	1,495
Total comprehensive loss	$ (7,992)	$ (15,490)	$ (17,761)	$ (23,343)