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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