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EMPLOYEE BENEFIT PLANS - SERP (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
EMPLOYEE BENEFIT PLANS |  |  |
Fair value of plan assets | $ 18,489 | $ 15,379 |
Pension and retirement plans liabilities | 21,667 | 17,998 |
Settlement loss |  | (2,363) | $ (1,180)
SERP |  |  |
EMPLOYEE BENEFIT PLANS |  |  |
Variable life insurance policies investment amount | 9,600 | 8,500 |
Fair value of plan assets | 18,500 | 15,400 |
Trading (losses) gains related to the SERP assets | 3,100 | 1,500 | (2,400)
Pension and retirement plans liabilities | 21,700 | 18,000 |
Change in fair value of liability unrealized gains (losses) | $ 3,400 | 1,800 | (2,300)
Retirement Income Plan |  |  |
EMPLOYEE BENEFIT PLANS |  |  |
Fair value of plan assets |  |  | 3,502
Settlement loss |  | $ (2,363) | $ (1,180)

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