Consolidated Statements of Comprehensive Income - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Net income (loss)	$ (215,235,000)	$ 62,375,000	$ 70,606,000
Comprehensive income:
Foreign currency and other loss	(65,569,000)	(80,630,000)	(9,910,000)
Total comprehensive income (loss)	$ (280,804,000)	$ (18,255,000)	$ 60,696,000