XML 18 R6.htm IDEA: XBRL DOCUMENT v3.8.0.1
Consolidated Statements of Comprehensive Loss (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Statement of Comprehensive Income [Abstract]    
Foreign currency translation adjustment, income tax expense (benefit) $ 148 $ 156