CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Comprehensive income:
Net income	$ 23,497	$ 23,303	$ 23,009
Other comprehensive income:
Net unrealized gain (loss) on securities available-for-sale	(10,748)	2,702	11,182
Tax effect	3,993	(946)	(3,914)
Reclassification adjustment for gains included in net income	(4,024)	(2,635)	(43)
Tax effect	1,408	923	15
FASB ASC 715 adjustment	15,674	(5,206)	(10,328)
Tax effect	(5,823)	1,822	3,615
Foreign currency translation adjustments	53		(32)
Total comprehensive income	$ 24,030	$ 19,963	$ 23,504