CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (1,134)	$ (21,153)	$ 57,547	$ 30,578
Other comprehensive income (loss):
Foreign currency translation adjustments	(9,495)	1,948	(4,808)	(11,886)
Comprehensive income (loss)	$ (10,629)	$ (19,205)	$ 52,739	$ 18,692