Condensed Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Net income	$ 18,067	$ 22,348	$ 33,752	$ 37,512
Other comprehensive income (loss):
Foreign currency translation adjustments	(7,705)	2,829	(3,378)	4,882
Total other comprehensive income	(7,705)	2,829	(3,378)	4,882
Comprehensive income	$ 10,362	$ 25,177	$ 30,374	$ 42,394