Consolidated Statements of Comprehensive (Loss) Income (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 6,609	$ 5,839
Investment securities available-for-sale:
Change in unrealized losses on investment securities available-for-sale, net of tax	(19,582)	(2,778)
Adjustment for gains on sale of investment securities, net of tax	0	(2)
Defined benefit pension plans:
Amortization of prior service cost included in net periodic pension cost, net of tax	0	35
Total other comprehensive loss	(19,582)	(2,745)
Total comprehensive (loss) income	$ (12,973)	$ 3,094