Consolidated Statements of Earnings and Comprehensive Income (Unaudited) (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Statement [Abstract]
Unrealized holding gain (loss) arising during period on investment securities available for sale, net of tax	$ 114	$ 2,158	$ (2,610)	$ 4,375
Reclassification adjustment for losses (gains) included in earnings, net of tax	46	0	48	60
Unrealized gain (loss) on cash flow hedges arising during period, net of tax	$ (80)	$ 57	$ 264	$ (591)