Condensed Consolidated Statements of Comprehensive Income (Loss) (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 7,124	$ (2,163)	$ 8,810	$ (40,467)
Unrealized gains (losses) on marketable securities, net of taxes of $0 and $0, respectively	0	(24)	0	(15)
Foreign currency translation adjustments	(1,352)	765	312	(3,876)
Other comprehensive income (loss)	(1,352)	741	312	(3,891)
Comprehensive income (loss)	5,772	(1,422)	9,122	(44,358)
Less—Comprehensive income (loss) attributable to noncontrolling interest	(184)	(570)	(99)	(570)
Comprehensive income (loss) attributable to the Company	$ 5,956	$ (852)	$ 9,221	$ (43,788)