Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 10,315	$ 9,881	$ (10,975)
Other comprehensive loss, net of tax
Changes in foreign currency translation adjustments	(1,882)	(2,659)	(148)
Change in unrealized investment loss	0	0	(29)
Other comprehensive loss	(1,882)	(2,659)	(177)
Comprehensive income (loss)	$ 8,433	$ 7,222	$ (11,152)