Retirement Plans, Fair Value of Pension Plan Investments Table (Details) - RAP - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Pension Plan Investments
RAP Investment Amount	$ 478,970	$ 453,457	$ 407,405
Fair Value, Inputs, Level 1 [Member]
Pension Plan Investments
RAP Investment Amount	438,554	409,771
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	40,416	43,687
Money Market Funds [Member]
Pension Plan Investments
RAP Investment Amount	7,892	10,040
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Pension Plan Investments
RAP Investment Amount	7,892	10,040
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	183,059	164,891
Defined Benefit Plan, Common Collective Trust | Fair Value, Inputs, Level 1 [Member]
Pension Plan Investments
RAP Investment Amount	183,059	164,891
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	247,602	234,840
Mutual Fund [Member] | Fair Value, Inputs, Level 1 [Member]
Pension Plan Investments
RAP Investment Amount	247,602	234,840
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	40,416	43,687
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	$ 40,416	$ 43,687	$ 40,939