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Commitments and Contingencies - Schedule of Future Minimum Lease Payments (Details)
$ in Thousands
Sep. 30, 2019
USD ($)
Commitments And Contingencies Disclosure [Abstract]  
2019 $ 697
2020 2,810
2021 2,815
2022 2,987
2023 3,077
Thereafter 10,366
Total future minimum lease payments $ 22,752