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Goodwill and Intangible Assets - Future Amortization Expense (Details)
$ in Thousands
Mar. 31, 2019
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
Remaining in 2019 $ 2,178
2020 2,904
2021 2,904
2022 2,904
2023 2,904
Thereafter 43,798
Net Book Value $ 57,592