Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Consolidated Statements of Comprehensive Income (Unaudited) [Abstract]
Net income	$ 17,871	$ 14,433	$ 34,960	$ 28,516
Net unrealized holding (loss) gain on securities available for sale	(9,211)	844	(28,436)	(5,174)
Tax effect	2,382	(222)	7,356	1,335
Net unrealized (loss) gain on securities available for sale, net of tax	(6,829)	622	(21,080)	(3,839)
Amortization of net actuarial gain	(426)	(169)	(504)	(397)
Amortization of prior service cost (credit)	123	102	(157)	50
Tax effect	79	17	172	90
Amortization of net actuarial gain and prior service cost (credit) on pension and postretirement plans, net of tax	(224)	(50)	(489)	(257)
Other comprehensive (loss) gain , net of tax	(7,053)	572	(21,569)	(4,096)
Comprehensive income	$ 10,818	$ 15,005	$ 13,391	$ 24,420