Consolidated Statements of Comprehensive Income (unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement of Comprehensive Income [Abstract]
Net unrealized gain (loss) on cashflow hedge	$ 70	$ 336	$ (487)	$ 1,772
Net unrealized gain (loss) on cashflow hedge, deferred tax	17	81	(117)	425
Net unrealized gain (loss) on available for sale debt securities	2,068	(2,861)	7,315	(7,873)
Net unrealized gain (loss) on available for sale debt securities, deferred taxes	496	(687)	1,755	(1,889)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax	453	8	1,535	828
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax	109	2	368	199
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax	0	0	(432)	0
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, Tax	$ 0	$ 0	$ (104)	$ 0