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BENEFIT PLANS (Details) | 12 Months Ended
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Dec. 31, 2023 USD ($) employee | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
401 (k) Plan |  |  |
BENEFIT PLANS |  |  |
Eligible compensation enrolled within 30-days of their date of hire | 6.00% |  |
Period within which all the eligible employees are automatically enrolled for compensation | 30 days |  |
Minimum percentage of annual eligible compensation by the participants | 1.00% |  |
Maximum percentage of annual eligible compensation by the participants | 75.00% |  |
Percentage of employers matching contribution for participant contributions up to 1% | 100.00% |  |
Percentage of additional employers matching contribution | 75.00% |  |
Vesting period | 2 years |  |
Supplemental Executive Retirement Plan |  |  |
Employer matching contributions | $ 3,136,000 | $ 3,096,000 | $ 3,373,000
Supplemental Employee Retirement Plan |  |  |
Supplemental Executive Retirement Plan |  |  |
Number of participants under SERP | employee | 4 |  |
SERP liability incurred | $ 2,000,000 | 2,000,000 |
Employer matching contributions | $ 0 | $ 0 | $ 232,000
Minimum | 401 (k) Plan |  |  |
BENEFIT PLANS |  |  |
Percentage of participant contributions up to which employer matches additional 75% contribution | 2.00% |  |
Maximum | 401 (k) Plan |  |  |
BENEFIT PLANS |  |  |
Percentage of participant contributions up to which employer matches 100% contribution | 1.00% |  |
Percentage of participant contributions up to which employer matches additional 75% contribution | 5.00% |  |

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- Definition Percentage of employees' gross pay for which the employer contributes additional matching contribution to a defined contribution plan. + References No definition available. + Details
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- Definition Represents the period within which all the eligible employees are automatically enrolled for compensation. + References No definition available. + Details
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- Definition Minimum percentage of employee gross pay the employee may contribute to a defined contribution plan. + References No definition available. + Details
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