Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (13,462)	$ 53,603	$ 36,178
Other comprehensive income (loss):
Foreign currency translation adjustment	(735)	(143)	(319)
Comprehensive income (loss)	$ (14,197)	$ 53,460	$ 35,859