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Intangible Assets - Future Amortization Expense (Details) - Customer Relationships [Member]
$ in Thousands
Dec. 31, 2019
USD ($)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]  
2020 $ 1,679
2021 1,393
2022 345
2023 345
2024 115
Total amortization $ 3,877