Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Consolidated Statements of Comprehensive Loss
Net loss	$ (77,187)	$ (38,924)	$ (36,957)
Other comprehensive loss:
(Loss) gain on translation of foreign operations	(44)	(322)	298
Unrealized gain (loss) on available-for-sale securities	56	95	(59)
Comprehensive loss	$ (77,175)	$ (39,151)	$ (36,718)

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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