Unaudited Consolidated Statements of Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Net income	$ 16,557	$ 2,871
Comprehensive income:
Foreign currency gain (loss)	8,175	(35,629)
Total comprehensive income (loss)	$ 24,732	$ (32,758)