UNAUDITED CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (10,255)	$ 40,228	$ (27,160)	$ 43,534
Other comprehensive (loss) income:
Unrealized losses on available-for-sale securities (net of taxes of $238, $0, $238 and $0, respectively)	(164)	0	(358)	0
Foreign currency translation adjustments	(1,147)	(53,541)	43,706	(118,713)
Other comprehensive (loss) income	(1,311)	(53,541)	43,348	(118,713)
Comprehensive (loss) income	$ (11,566)	$ (13,313)	$ 16,188	$ (75,179)