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Leases - Summary of Future Annual Minimum Lease Payments Under Non-Cancelable Operating Leases (Detail)
$ in Thousands
Jun. 30, 2019
USD ($)
Commitments and Contingencies [Line Items]  
2020 $ 1,353
2021 1,376
2022 1,400
2023 1,425
2024 1,450
Thereafter 2,638
Total $ 9,642