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Accumulated Other Comprehensive Loss (Schedule of Reclassification of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Reclassification out of Accumulated Other Comprehensive Income [Line Items]      
Other income (expense), net $ 1,058 $ 5,136 $ 3,513
Income tax (expense) benefit (23,751) (18,147) (18,544)
Net income 116,629 108,133 $ 49,990
Reclassification out of accumulated other comprehensive income | Amortization/settlement of pension and other postretirement benefits      
Reclassification out of Accumulated Other Comprehensive Income [Line Items]      
Pension settlement charges 0 0  
Other income (expense), net (405) (290)  
Income tax (expense) benefit 248 65  
Net income $ (157) $ (225)