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Pension Plans And Other Postretirement Benefits (Components Of Net Periodic Benefit Cost) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Pension Benefits [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Service cost | $ 304 | $ 358 | $ 912 | $ 1,072
Interest cost | 3,991 | 3,908 | 11,973 | 11,724
Expected return on plan assets | (4,266) | (4,696) | (12,798) | (14,088)
Amortization of prior service cost | 78 | 82 | 234 | 244
Amortization of actuarial loss (gain) | 833 | 751 | 2,499 | 2,253
Net periodic benefit cost | 940 | 403 | 2,820 | 1,205
Other Postretirement Benefits [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Service cost | 372 | 363 | 1,116 | 1,089
Interest cost | 1,132 | 1,113 | 3,396 | 3,337
Expected return on plan assets | (1,071) | (1,105) | (3,213) | (3,315)
Amortization of actuarial loss (gain) | (401) | (267) | (1,203) | (801)
Net periodic benefit cost | $ 32 | $ 104 | $ 96 | $ 310

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