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RETIREMENT PLANS (Future Benefit Payments) (Details) $ in Thousands | Dec. 31, 2018 USD ($)
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Postemployment Benefits [Abstract] |
2019 | $ 1,500
2020 | 1,520
2021 | 1,650
2022 | 1,670
2023 | 1,790
2024 - 2028 | $ 9,360

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