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Accumulated Other Comprehensive Income (Loss) (Reclassifications out of AOCI) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Net of tax $ (854) $ (452)
Amortization of actuarial losses    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Reclassification (630) (283)
Prior service costs    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Reclassification (153) (151)
Pension and other post-retirement effects    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Tax benefit (expense) (76) 12
Net of tax (859) (422)
Cash flow hedging activity    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Reclassification (30) (39)
Tax benefit (expense) 35 9
Net of tax $ 5 $ (30)