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BENEFIT PLANS, Estimated Future Benefit Payments (Details)
$ in Thousands
Dec. 31, 2019
USD ($)
Pension Benefits [Member]  
Estimated Future Benefit Payments [Abstract]  
2020 $ 9,947
2021 10,713
2022 10,913
2023 11,455
2024 11,762
2025-2029 59,503
Post-retirement Benefits [Member]  
Estimated Future Benefit Payments [Abstract]  
2020 179
2021 135
2022 132
2023 129
2024 126
2025-2029 $ 572