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RETIREMENT PLANS - SERP (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
RETIREMENT PLANS |  |  |  |  |
Participant balance |  |  | 12 months |  |
Tax-free gains related to life insurance policy claims |  |  |  | $ 2,380 |
Supplemental Retirement Plan ('SERP') |  |  |  |  |
RETIREMENT PLANS |  |  |  |  |
Fair value of plan assets | $ 31,500 |  | $ 31,500 |  | $ 30,700
Trading gains (losses), net | 789 | $ 425 | 769 | 1,700 |
Defined benefit plan | 23,800 |  | 23,800 |  | $ 24,500
Supplemental Retirement Plan ('SERP') | Selling, general and administrative expenses |  |  |  |  |
RETIREMENT PLANS |  |  |  |  |
Unrealized gains (loss) | $ 804 | $ 454 | $ 815 | $ 1,700 |

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- Definition The period of distribution of participant balances in a defined benefit plan, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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