Condensed Consolidated Statement of Stockholders' Equity (Unaudited) - 3 months ended Mar. 31, 2016 - USD ($) $ in Thousands	Total	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Loss [Member]
Balance at beginning of period at Dec. 31, 2015	$ 468,544	$ 545,754	$ (42,020)	$ (35,190)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(7,844)		(7,844)
Foreign currency translation adjustments	6,084			6,084
Stock-based compensation	594	594
Balance at end of period at Mar. 31, 2016	$ 467,378	$ 546,348	$ (49,864)	$ (29,106)