CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement Of Income And Comprehensive Income [Abstract]
Net income (loss)	$ (70,503)	$ 9,125
Other comprehensive income (loss), net of taxes of $0 for all periods:
Foreign currency translation adjustment	6,678	(8,578)
Total comprehensive income (loss)	$ (63,825)	$ 547