Consolidated Statements of Comprehensive Income (unaudited) - 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 income	$ 8,061	$ 6,899	$ 23,718	$ 20,622
Other comprehensive income (loss):
Net unrealized gain (loss) on cashflow hedge	53	255	(370)	1,347
Net unrealized gain (loss) on available for sale debt securities	1,572	(2,174)	5,560	(5,984)
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax			(328)	0
Other Comprehensive Income (Loss), Net of Tax	1,625	(1,919)	4,862	(4,637)
Total comprehensive income	$ 9,686	$ 4,980	$ 28,580	$ 15,985