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Employee Benefit Plans - Expected benefit payments (Details)
$ in Thousands
Dec. 31, 2019
USD ($)
Expected employer contributions  
Expected contributions $ 4,100
Expected benefit payments  
2020 2,082
2021 2,361
2022 2,250
2023 2,293
2024 2,323
2025-2028 14,980
Total $ 26,289