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SUPPLEMENTAL EXECUTIVE RETIREMENT PLANS (Net Periodic Benefit Cost) (Details) - SERPs - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
PENSION AND SUPPLEMENTAL EXECUTIVE RETIREMENT PLANS        
Interest cost $ 107 $ 112 $ 323 $ 336
Amortization of net actuarial gain 0 (19) 0 (57)
Amortization of net transition obligation 0 2 0 6
Net periodic benefit cost $ 107 $ 95 $ 323 $ 285