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Benefit Plans (Components of Net Periodic Benefit Cost Credit) (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Defined Benefit Plan Disclosure [Line Items]        
Defined benefit pension plan, benefit basis, average of highest annual compensation period     5 years  
Pension Plan        
Components of net periodic benefit cost (income):        
Interest cost $ 924 $ 727 $ 2,742 $ 2,158
Expected return on Plan assets (893) (1,011) (2,651) (3,001)
Total net periodic benefit cost (income) $ 31 $ (284) $ 91 $ (843)