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Pension And Other Post-Retirement Benefits (Schedule Of Components Of Net Periodic Benefit Cost For Pension And Other Post-Retirement Benefit Programs) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Defined Benefit Plan Disclosure [Line Items]    
Pension settlement loss   $ 92,300
Pension Benefits    
Defined Benefit Plan Disclosure [Line Items]    
Service cost $ 0 0
Interest cost 19 3,027
Expected return on plan assets 0 (2,607)
Amortization of prior service costs, (gains) losses and net transition asset 5 2,983
Net periodic benefit cost 24 3,403
Other Post-Retirement Benefits    
Defined Benefit Plan Disclosure [Line Items]    
Service cost 3 3
Interest cost 67 71
Expected return on plan assets 0 0
Amortization of prior service costs, (gains) losses and net transition asset (40) (59)
Net periodic benefit cost $ 30 $ 15