Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Consolidated Statements of Comprehensive Income (Unaudited) [Abstract]
Net income	$ 12,126	$ 17,746
Net unrealized holding (loss) gain on securities available for sale	(1,872)	5,251
Tax effect	494	(1,350)
Net unrealized (loss) gain on securities available for sale, net of tax	(1,378)	3,901
Amortization of net actuarial gain	(203)	(114)
Amortization of prior service cost	3	3
Tax effect	52	29
Amortization of net actuarial gain and prior service cost on pension and postretirement plans, net of tax	(148)	(82)
Other comprehensive (loss) income, net of tax	(1,526)	3,819
Comprehensive income	$ 10,600	$ 21,565