Retirement Plans Retirement Plans, Fair Value Reconciliation of Level 3 Retirement Account Plan Investments (Details) - RAP - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Defined Benefit Plan, Change in Fair Value of Plan Assets, Level 3 Reconciliation [Roll Forward]
Defined Benefit Plan, Plan Assets, Amount, Beginning Balance	$ 453,457	$ 407,405
Defined Benefit Plan, Plan Assets, Amount, Ending Balance	478,970	453,457
Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets, Level 3 Reconciliation [Roll Forward]
Defined Benefit Plan, Plan Assets, Amount, Beginning Balance	43,687
Defined Benefit Plan, Plan Assets, Amount, Ending Balance	40,416	43,687
Group Annuity Contracts [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets, Level 3 Reconciliation [Roll Forward]
Defined Benefit Plan, Plan Assets, Amount, Beginning Balance	43,687
Defined Benefit Plan, Plan Assets, Amount, Ending Balance	40,416	43,687
Group Annuity Contracts [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets, Level 3 Reconciliation [Roll Forward]
Defined Benefit Plan, Plan Assets, Amount, Beginning Balance	43,687	40,939
Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Actual Return (Loss) on Plan Assets Still Held	(731)	5,313
Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Decrease for Settlement	(2,539)	(2,565)
Defined Benefit Plan, Plan Assets, Amount, Ending Balance	$ 40,416	$ 43,687