Consolidated Statements of Comprehensive (Loss) Income (unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 2,579	$ 4,927	$ 8,399	$ 16,025
Investment securities available-for-sale:
Change in unrealized (losses) gains on investment securities available-for-sale, net of tax	(9,325)	(12,430)	(7,948)	(43,438)
Defined benefit pension plans:
Amortization of net gains included in net periodic pension cost, net of tax	(126)	0	(379)	0
Total other comprehensive loss	(9,451)	(12,430)	(8,327)	(43,438)
Total comprehensive (loss) income	$ (6,872)	$ (7,503)	$ 72	$ (27,413)