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
Consolidated Statements of Comprehensive Income
Net income	$ 7,682	$ 6,682	$ 20,857	$ 19,287
Unrealized gains (losses) on securities available for sale:
Unrealized gains (losses) arising during the period (net of tax of $45, $202, ($2,974) and $432, respectively)	83	375	(5,523)	802
Reclassification adjustment for securities losses realized in income (net of tax of $0, $0, $2, and $0, respectively)			3
Other comprehensive income (loss)	83	375	(5,520)	802
Comprehensive income	$ 7,765	$ 7,057	$ 15,337	$ 20,089