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EMPLOYEE BENEFIT PLANS - Schedule of Net Benefit Costs (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Weighted-average expected long-term rate of return on plan assets (as a percent) |  |  | 5.00% |
Pension |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Service cost | $ 0 | $ 0 | $ 0 | $ 0
Interest cost | 844 | 609 | 2,533 | 1,826
Expected return on plan assets | (887) | (872) | (2,663) | (2,615)
Amortization of losses | 1 | 184 | 4 | 553
Net periodic benefit (credit) cost | (42) | (79) | (126) | (236)
Postretirement |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Service cost | 1 | 2 | 3 | 5
Interest cost | 17 | 13 | 52 | 39
Expected return on plan assets | 0 | 0 | 0 | 0
Amortization of losses | 0 | 4 | 0 | 11
Net periodic benefit (credit) cost | $ 18 | $ 19 | $ 55 | $ 55

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