Retirement Plans Retirement Plans, Components of Net Pension Cost for the Post Retirement Plan Table (Details) - Postretirement Plan - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Interest Cost	$ 78	$ 53	$ 52
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	(75)	(75)	(75)
Defined Benefit Plan, Amortization of Gain (Loss)	(29)	0	0
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)	$ (26)	$ (22)	$ (24)