Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Statement of Comprehensive Income [Abstract]
Net loss	$ (14,678)	$ (27,581)	$ (49,404)
Translation adjustments	(1,255)	(556)	(438)
Adjustment for fair value of hedge derivatives, net of tax	(67)	123	(110)
Other comprehensive loss	(1,322)	(433)	(548)
Comprehensive loss	$ (16,000)	$ (28,014)	$ (49,952)