Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Condensed Consolidated Statements of Comprehensive Loss
Net loss	$ (84,833)	$ (64,454)	$ (246,523)	$ (221,237)
Net changes related to available-for-sale investment debt securities:
Unrealized gains on investment debt securities	451	368	1,646	119
Reclassification adjustment for realized gains on investment debt securities included in other income, net	2		6
Net unrealized gains on investment debt securities	453	368	1,652	119
Foreign currency translation gains (losses)	(687)	63	(463)	(979)
Other comprehensive (loss) income	(234)	431	1,189	(860)
Comprehensive loss	$ (85,067)	$ (64,023)	$ (245,334)	$ (222,097)

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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