Savings Plans, Pension Plans and Other Postretirement Employee Benefits (Assets in Defined Benefit Pension Plan Invested) (Details) - Pension Plans [Member] - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Fair Value of Plan Assets	$ 170,722	$ 177,875	$ 172,246
Cash and Cash Equivalents [Member]
Fair Value of Plan Assets	1,707	3,009
Collective Investment Funds [Member]
Fair Value of Plan Assets	169,015
Global Equities [Member]
Fair Value of Plan Assets		34,534
Fixed Income Securities [Member]
Fair Value of Plan Assets		131,837
Alternative Securities [Member]
Fair Value of Plan Assets		8,495
Level 1
Fair Value of Plan Assets	1,707	160,262
Level 1 | Cash and Cash Equivalents [Member]
Fair Value of Plan Assets	1,707	3,009
Level 1 | Collective Investment Funds [Member]
Fair Value of Plan Assets	0
Level 1 | Global Equities [Member]
Fair Value of Plan Assets		34,534
Level 1 | Fixed Income Securities [Member]
Fair Value of Plan Assets		114,224
Level 1 | Alternative Securities [Member]
Fair Value of Plan Assets		8,495
Level 2 [Member]
Fair Value of Plan Assets		17,613
Level 2 [Member] | Cash and Cash Equivalents [Member]
Fair Value of Plan Assets		0
Level 2 [Member] | Global Equities [Member]
Fair Value of Plan Assets		0
Level 2 [Member] | Fixed Income Securities [Member]
Fair Value of Plan Assets		17,613
Level 2 [Member] | Alternative Securities [Member]
Fair Value of Plan Assets		$ 0
Investments Measured at Net Asset Value [Member]
Fair Value of Plan Assets	169,015
Investments Measured at Net Asset Value [Member] | Cash and Cash Equivalents [Member]
Fair Value of Plan Assets	0
Investments Measured at Net Asset Value [Member] | Collective Investment Funds [Member]
Fair Value of Plan Assets	$ 169,015