CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Net loss	$ (33,120)	$ (19,727)	$ (78,131)	$ (51,401)
Other comprehensive income (loss):
Net unrealized gains (losses) on investments available-for-sale	48	(54)	95	(28)
Reclassification adjustment for gains included in net loss	0	0	0	(615)
Foreign currency translation adjustment	(406)	(2,764)	(2,558)	(4,307)
Other comprehensive loss	(358)	(2,818)	(2,463)	(4,950)
Comprehensive loss	$ (33,478)	$ (22,545)	$ (80,594)	$ (56,351)