CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Net loss	$ (44,570)	$ (44,607)	$ (135,414)	$ (132,927)
Other comprehensive income (loss):
Net unrealized gains (losses) on marketable debt securities available-for-sale	(13)	0	9	(34)
Foreign currency translation adjustment	160	1,299	(2,418)	3,544
Other comprehensive income (loss)	147	1,299	(2,409)	3,510
Comprehensive loss	$ (44,423)	$ (43,308)	$ (137,823)	$ (129,417)

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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