Employee Benefit Plans - Components of Postretirement Benefit Expense (Details) - Postretirement Medical and Life Benefit Plan - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]
Service Cost	$ 118	$ 101	$ 105
Interest Cost	77	71	35
Amortization of Prior Service Costs	(3)	(3)	(2)
Amortization of Unrecognized Net (Gain) Loss	46	32	43
Net Postretirement Benefit Expense	238	201	181
Net Gain (Loss) During Period Recognized in Other Comprehensive Income (Loss)	(283)	158	(112)
Total Recognized in Net Postretirement Benefit Expense and Other Comprehensive Income	$ (45)	$ 359	$ 69