CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2012 Scenario, Actual [Member]	Sep. 30, 2012 Scenario, Actual [Member]
Net income	$ 2,582	$ 20,024	$ 52,748	$ 72,226
Foreign currency translation adjustments	2,414	(1,292)	2,414	1,320
Comprehensive income	$ 4,996	$ 18,732	$ 55,162	$ 73,546