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RETIREMENT PLANS (Tables)
12 Months Ended
Dec. 31, 2020
Postemployment Benefits [Abstract]  
Future Benefit Payments
Expected benefit payments for each of the next five fiscal years and in the aggregate for the five fiscal years thereafter are as follows (in thousands):
Year ending December 31,
2021$431 
2022474 
2023455 
2024435 
2025417 
2026 through 20301,845