Condensed Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Net income	$ 12,292	$ 14,071	$ 25,032	$ 28,641
Other comprehensive income (loss), net of taxes:
Foreign currency translation adjustments	(40)	(713)	(1,295)	433
Total other comprehensive income (loss), net of taxes	(40)	(713)	(1,295)	433
Comprehensive income	$ 12,252	$ 13,358	$ 23,737	$ 29,074