Consolidated Statements of Comprehensive Income (unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement of Comprehensive Income [Abstract]
Net unrealized gain (loss) on cashflow hedge	$ 965	$ (2,033)	$ (2,114)	$ (3,063)
Net unrealized gain (loss) on cashflow hedge, deferred tax	357	(752)	(782)	(1,133)
Net unrealized gain (loss) on available for sale debt securities	(1,437)	1,041	2,175	(916)
Net unrealized gain (loss) on available for sale debt securities, deferred taxes	(532)	385	805	(339)
Net unrealized gains on available for sale debt securities, reclassification adjustment for net realized gains included in net income	$ 61	$ 373	$ 836	$ 1,023