Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Net income (loss)	$ (202,979)	$ (215,235)	$ 62,375
Comprehensive income:
Foreign currency	(52,168)	(65,569)	(80,630)
Total comprehensive income (loss)	$ (255,147)	$ (280,804)	$ (18,255)