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Leases - Company's Future Minimum Lease Payments under ASC 840 (Details)
$ in Thousands
Sep. 30, 2019
USD ($)
Leases [Abstract]  
2021 $ 3,484
2021 3,051
2022 3,136
2023 3,166
2024 3,100
Thereafter 16,945
Total future minimum lease payments $ 32,882