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EMPLOYEE BENEFIT PLANS - Periodic Benefit Cost (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Other changes in plan assets and benefit obligations recognized in accumulated other comprehensive loss: |  |  |
Total recognized in accumulated other comprehensive loss | $ (20,471) | $ 23,175 | $ 23,445
Defined benefit pension plan |  |  |
Components of net periodic benefit cost: |  |  |
Interest cost | $ 5,180 | $ 3,749 | $ 3,438
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] | Other Nonoperating Income (Expense) | Other Nonoperating Income (Expense) | Other Nonoperating Income (Expense)
Expected return on plan assets | $ (6,220) | $ (6,638) | $ (6,580)
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Expected Return (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Other Nonoperating Income (Expense) | Other Nonoperating Income (Expense) | Other Nonoperating Income (Expense)
Amortization of prior service cost | $ 186 | $ 186 | $ 186
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Amortization of Prior Service Cost (Credit), Statement of Income or Comprehensive Income [Extensible Enumeration] | Other Nonoperating Income (Expense) | Other Nonoperating Income (Expense) | Other Nonoperating Income (Expense)
Amortization of net loss | $ 682 | $ 1,963 | $ 4,327
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Amortization of Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Other Nonoperating Income (Expense) | Other Nonoperating Income (Expense) | Other Nonoperating Income (Expense)
Net periodic benefit cost | $ (172) | $ (740) | $ 1,371
Other changes in plan assets and benefit obligations recognized in accumulated other comprehensive loss: |  |  |
Net actuarial gain | 2,894 | 10,148 | 14,921
Reversal of amortization item: Prior service cost | 186 | 186 | 186
Reversal of amortization item: Net actuarial loss | 682 | 1,963 | 4,327
Total recognized in accumulated other comprehensive loss | 3,762 | 12,297 | 19,434
Net periodic benefit cost (credit) | 172 | 740 | $ (1,371)
Total recognized in net periodic benefit cost and accumulated other comprehensive loss | $ 3,934 | $ 13,037 |

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- Definition Represents the sum of the total amount of net periodic benefit cost for defined benefit plans for the period and amounts recognized in other comprehensive income (but not yet recognized in net periodic benefit cost), including the net gain (loss) and net prior service cost (credit) arising during the period. + References No definition available. + Details
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