Retirement Plans, Fair Value of Pension Plan Investments Table (Details) - RAP - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Pension Plan Investments
RAP Investment Amount	$ 517,579	$ 478,970	$ 453,457
Fair Value, Inputs, Level 1 [Member]
Pension Plan Investments
RAP Investment Amount	478,010	438,554
Fair Value, Inputs, Level 2 [Member]
Pension Plan Investments
RAP Investment Amount	0	0
Fair Value, Inputs, Level 3 [Member]
Pension Plan Investments
RAP Investment Amount	39,569	40,416
Money Market Funds [Member]
Pension Plan Investments
RAP Investment Amount	2,661	7,892
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Pension Plan Investments
RAP Investment Amount	2,661	7,892
Money Market Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Pension Plan Investments
RAP Investment Amount	0	0
Money Market Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Pension Plan Investments
RAP Investment Amount	0	0
Defined Benefit Plan, Common Collective Trust
Pension Plan Investments
RAP Investment Amount	197,772	183,059
Defined Benefit Plan, Common Collective Trust | Fair Value, Inputs, Level 1 [Member]
Pension Plan Investments
RAP Investment Amount	197,772	183,059
Defined Benefit Plan, Common Collective Trust | Fair Value, Inputs, Level 2 [Member]
Pension Plan Investments
RAP Investment Amount	0	0
Defined Benefit Plan, Common Collective Trust | Fair Value, Inputs, Level 3 [Member]
Pension Plan Investments
RAP Investment Amount	0	0
Mutual Fund [Member]
Pension Plan Investments
RAP Investment Amount	277,577	247,602
Mutual Fund [Member] | Fair Value, Inputs, Level 1 [Member]
Pension Plan Investments
RAP Investment Amount	277,577	247,602
Mutual Fund [Member] | Fair Value, Inputs, Level 2 [Member]
Pension Plan Investments
RAP Investment Amount	0	0
Mutual Fund [Member] | Fair Value, Inputs, Level 3 [Member]
Pension Plan Investments
RAP Investment Amount	0	0
Group Annuity Contracts [Member]
Pension Plan Investments
RAP Investment Amount	39,569	40,416
Group Annuity Contracts [Member] | Fair Value, Inputs, Level 1 [Member]
Pension Plan Investments
RAP Investment Amount	0	0
Group Annuity Contracts [Member] | Fair Value, Inputs, Level 2 [Member]
Pension Plan Investments
RAP Investment Amount	0	0
Group Annuity Contracts [Member] | Fair Value, Inputs, Level 3 [Member]
Pension Plan Investments
RAP Investment Amount	$ 39,569	$ 40,416	$ 43,687