Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Consolidated Statements of Comprehensive Income (Unaudited) [Abstract]
Net income	$ 19,364	$ 16,762	$ 54,324	$ 45,278
Net unrealized holding loss on securities available for sale	(20,943)	(765)	(49,379)	(5,939)
Tax effect	5,421	199	12,777	1,534
Net unrealized loss on securities available for sale, net of tax	(15,522)	(566)	(36,602)	(4,405)
Amortization of net actuarial gain	(280)	(137)	(784)	(534)
Amortization of prior service (credit) cost	(78)	177	(235)	227
Tax effect	93	(10)	265	80
Amortization of net actuarial gain and prior service (credit) cost on pension and postretirement plans, net of tax	(265)	30	(754)	(227)
Other comprehensive loss, net of tax	(15,787)	(536)	(37,356)	(4,632)
Comprehensive income	$ 3,577	$ 16,226	$ 16,968	$ 40,646