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RETIREMENT PLAN BENEFIT LIABILITY - Components of Net Periodic Pension Cost (Details) - Supplemental Employee Retirement Plan Defined Benefit [Member] - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Components of net periodic pension cost [Abstract]        
Service cost $ 226 $ 211 $ 676 $ 626
Interest cost 696 710 2,089 1,931
Curtailment charge 0 0 0 312
Amortization of prior service cost 6 6 17 27
Total net periodic benefit cost $ 928 $ 927 $ 2,782 $ 2,896