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Condensed Consolidated Statements of Comprehensive Loss - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Statement of Comprehensive Income [Abstract]        
Net loss $ (13,795) $ (18,556) $ (41,946) $ (33,148)
Foreign currency translation adjustment (3,224) 4,044 48 6,639
Total comprehensive loss $ (17,019) $ (14,512) $ (41,898) $ (26,509)