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Accumulated Other Comprehensive Loss (Components of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Mar. 31, 2022
Dec. 31, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Accumulated other comprehensive loss, net of tax $ (10,151) $ (26,028) $ (1,656) $ (12,353) $ (8,460) $ 30,497
Pension Benefits [Member] | Accumulated Defined Benefit Plans Adjustment Including Portion Attributable to Noncontrolling Interest [Member]            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Accumulated other comprehensive loss, net of tax (5,355)   (5,522)      
Accumulated other comprehensive loss, tax $ 6,282   $ 6,282