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Debt - Schedule of Future Minimum Payment Obligations of Principal Amounts Due (Details)
$ in Thousands
Mar. 31, 2019
USD ($)
Debt Disclosure [Abstract]  
Remainder of 2019 $ 1,650
2020 2,200
2021 2,200
2022 2,200
2023 2,200
Thereafter 208,450
Total principal outstanding $ 218,900