Change in Accumulated Other Comprehensive Income - (Loss) Changes To Accumulated Other Comprehensive Income By Components (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance	$ (18,006)	$ (20,446)
Other comprehensive (loss) before reclassifications	(2,291)	3,764
Reclassifications	(1)
Tax effect of current period changes	481	(789)
Total other comprehensive (loss) income	(1,811)	2,975
Ending balance	(19,817)	(17,471)
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance	(18,020)	(20,465)
Other comprehensive (loss) before reclassifications	(2,287)	3,772
Tax effect of current period changes	480	(792)
Total other comprehensive (loss) income	(1,807)	2,980
Ending balance	(19,827)	(17,485)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance	14	19
Other comprehensive (loss) before reclassifications	(4)	(8)
Reclassifications	(1)
Tax effect of current period changes	1	3
Total other comprehensive (loss) income	(4)	(5)
Ending balance	$ 10	$ 14