Employee Benefit Plans - Accumulated Post-Retirement Benefit Obligation, Funded Status, and Net Periodic Benefit Cost (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Change in benefit obligations
Benefit obligation at beginning of year	$ 1,050	$ 1,353	$ 1,523
Interest cost	48	33	29
Benefits paid	(79)	(93)	(93)
Actuarial gain	(100)	(243)	(106)
Benefit obligation at end of period	$ 919	1,050	1,353
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement Of Income Or Comprehensive Income, Extensible List, Not Disclosed Flag	Interest cost
Funded status
Benefit obligation at end of period	$ (919)	(1,050)	(1,353)
Unamortized gain	(384)	(345)	(133)
Accrued benefit cost	$ (1,303)	$ (1,395)	$ (1,486)
Weighted average discount rate as of December 31	0.0467	0.0475	0.0250
Components of net periodic benefit cost
Interest cost	$ 48	$ 33	$ 29
Amortization of gains	(29)	0	0
Other settlement income	(33)	(31)	(9)
Net periodic benefit (credit) cost	$ (14)	$ 2	$ 20
Weighted average discount rate for net periodic cost	4.75%	2.50%	2.00%
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Amortization Of Gain (Loss), Statement Of Income Or Comprehensive Income, Extensible List, Not Disclosed Flag	Amortization of gains