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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 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Defined Benefit Plan Disclosure [Line Items]        
Pension settlement loss       $ 92,300
Pension Benefits        
Defined Benefit Plan Disclosure [Line Items]        
Service cost $ 0 $ 0 $ 0 0
Interest cost 19 3,028 38 6,056
Expected return on plan assets 0 (2,607) 0 (5,214)
Amortization of prior service costs, (gains) losses and net transition asset 6 2,982 11 5,965
Net periodic benefit cost 25 3,403 49 6,807
Other Post-Retirement Benefits        
Defined Benefit Plan Disclosure [Line Items]        
Service cost 2 3 5 6
Interest cost 69 71 137 142
Expected return on plan assets 0 0 0 0
Amortization of prior service costs, (gains) losses and net transition asset (42) (59) (82) (118)
Net periodic benefit cost $ 29 $ 15 $ 60 $ 30