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Pension And Other Post-Retirement Benefits (Narrative) (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Feb. 09, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position |  | $ 36,300 |  | $ 36,300 |  | $ 35,700
Pension settlement loss |  | 25,612 | $ 0 | 25,612 | $ 0 |
Pension lump sum distribution |  | 64,500 |  | 64,500 |  |
Pension Settlement Borrowings |  | 30,000 |  | 30,000 |  |
unrecognized pre-tax actuarial losses |  | 69,000 |  | 69,000 |  |
Other Post-Retirement Benefits |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |
Expected required contributions |  |  |  | 500 |  |
Pension settlement loss |  | 0 | 0 | 0 | 0 |
Pension Benefits |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |
Contribution to pension plans for continuing operations | $ 50,000 |  |  |  |  |
Pension settlement loss |  | 25,612 | $ 0 | 25,612 | $ 0 |
Accrued Expenses [Member] |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |
Liability, Defined Benefit Plan, Current |  | $ 700 |  | $ 700 |  |

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