Condensed Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Net income	$ 6,143	$ 6,183	$ 16,315	$ 16,551
Foreign currency translation adjustments	2,525	1,226	(62)	1,415
Comprehensive income	$ 8,668	$ 7,409	$ 16,253	$ 17,966