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Leases - Reconciliation of Undiscounted Cash Payment Obligations of Operating Lease Liability (Detail)
$ in Thousands
Jun. 30, 2020
USD ($)
Leases [Abstract]  
Remaining in 2020 $ 421
2021 838
2022 862
2023 867
2024 218
Thereafter 0
Total lease payments 3,206
Imputed interest (456)
Total minimum lease payments $ 2,750