Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Comprehensive Income [Abstract]
Net unrealized gain (loss) on cashflow hedge	$ (808)	$ (268)	$ 1,645
Net unrealized gain (loss) on cashflow hedge, deferred tax	(194)	(64)	395
OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment and Tax	4,830	5,244	(4,920)
OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, Tax	1,159	1,258	(1,181)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax	3,472	1,938	622
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax	833	465	149
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax	(116)	(120)	(341)
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, Tax	(28)	(29)	$ (82)
Other Comprehensive Income (Loss), Pension Plan, Gain (Loss) Arising During Period, before Tax	(78)	(184)
Other Comprehensive Income (Loss), Pension Plan, Gain (Loss) Arising During Period, Tax	$ (19)	$ (44)