CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Net loss	$ (66,254)	$ (33,120)	$ (222,857)	$ (78,131)
Other comprehensive income (loss):
Net unrealized gains (losses) on marketable securities available-for-sale	(121)	48	172	95
Foreign currency translation adjustment	(540)	(406)	(852)	(2,558)
Other comprehensive loss	(661)	(358)	(680)	(2,463)
Comprehensive loss	$ (66,915)	$ (33,478)	$ (223,537)	$ (80,594)