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Retirement Benefits (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2023
USD ($)
person
Mar. 31, 2022
USD ($)
Postemployment Benefits [Abstract]    
Service cost $ 124 $ 194
Interest cost 373 263
Expected return on plan assets (663) (784)
Amortization of net loss 98 102
Net Periodic Benefit (Income) Expense $ (68) $ (225)
Number of active, vested, terminated and retired persons in the plan | person 343