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Pension Plans (Components of Pension Cost) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Defined Benefit Plan Disclosure [Line Items]        
Service cost $ 0 $ 0 $ 0 $ 0
Interest cost 295 124 590 469
Expected return on plan assets (288) (203) (576) (528)
Amortization of net (gain)/loss 44 205 88 376
Net periodic pension cost 51 126 102 317
Pension Plan        
Defined Benefit Plan Disclosure [Line Items]        
Service cost 0 0 0 0
Interest cost 267 104 534 410
Expected return on plan assets (288) (203) (576) (528)
Amortization of net (gain)/loss 180 158 360 368
Net periodic pension cost 159 59 318 250
SERP        
Defined Benefit Plan Disclosure [Line Items]        
Service cost 0 0 0 0
Interest cost 28 20 56 59
Expected return on plan assets 0 0 0 0
Amortization of net (gain)/loss (136) 47 (272) 8
Net periodic pension cost $ (108) $ 67 $ (216) $ 67