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EMPLOYEE RETIREMENT PLANS AND POSTRETIREMENT BENEFITS - Expected Future Benefit Payments (Details) $ in Thousands | Dec. 31, 2020 USD ($)
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Expected Future Benefit Payments |
2021 | $ 2,255
2022 | 1,972
2023 | 2,184
2024 | 2,891
2025 | 2,301
2026 - 2030 | $ 49,098

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