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Pension Plans - Qualified Plan - Expected Future Benefit Payments (Details) - Pension Plan [Member] - Qualified Plan [Member]
$ in Thousands
Dec. 31, 2019
USD ($)
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]  
2020 $ 6,930
2021 4,917
2022 5,795
2023 4,956
2024 4,932
2025 - 2029 $ 30,300