Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net income	$ 23,756	$ 22,688	$ 17,860
Foreign currency translation adjustments	197	1,411	(995)
Comprehensive income	$ 23,953	$ 24,099	$ 16,865