Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 4,540	$ 1,664	$ 3,385	$ 20,387
Other comprehensive income (loss), net of tax:
Unrealized (loss) gain on debt securities available for sale	(450)	3,165	(5,442)	16,234
Accretion of unrealized gain (loss) on debt securities reclassified as held to maturity	2	(1)	6	(9)
Reclassification adjustment for (loss) gain included in net income	0	(6,851)	(903)	(7,779)
Total other comprehensive (loss) income, net of tax	(448)	(3,687)	(6,339)	8,446
Derivatives, net of tax:
Unrealized gain (loss) on swap contracts accounted for as cash flow hedges	298	2,883	4,058	2,018
Total derivative, net of tax	298	2,883	4,058	2,018
Employee benefit plans, net of tax:
Amortization of prior service cost included in net income	(10)	(10)	(20)	(20)
Reclassification adjustment of actuarial net (loss) gain included in net income	(394)	1	(778)	1
Change in funded status of retirement obligations	5,909	2,500	6,332	2,680
Total employee benefit plans, net of tax	5,505	2,491	5,534	2,661
Total other comprehensive income	5,355	1,687	3,253	13,125
Total comprehensive income, net of tax	$ 9,895	$ 3,351	$ 6,638	$ 33,512