Annual report pursuant to Section 13 and 15(d)

CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Parenthetical)

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Parenthetical) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Statement of Comprehensive Income [Abstract]      
Other comprehensive income (loss), Unrealized Holding Gain (Loss) on Securities Arising During the Period, tax $ 0 $ 0 $ 5
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax $ 184 $ 0 $ 0