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Pension Plans (Components of Pension Cost) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Defined Benefit Plan Disclosure [Line Items]    
Service cost   $ 0
Interest cost   295
Expected return on plan assets   (288)
Amortization of net loss (gain)   44
Net periodic pension cost $ 63 51
SERP    
Defined Benefit Plan Disclosure [Line Items]    
Service cost 0 0
Interest cost 38 28
Expected return on plan assets 0 0
Amortization of net loss (gain) 25 (136)
Net periodic pension cost $ 63 (108)
Pension Plan    
Defined Benefit Plan Disclosure [Line Items]    
Service cost   0
Interest cost   267
Expected return on plan assets   (288)
Amortization of net loss (gain)   180
Net periodic pension cost   $ 159