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Finance Arrangements - Summary of Future Principal and Interest Payments Related to Loan Agreement and Convertible Debentures (Detail) - Term Loan A [Member]
$ in Thousands
Jun. 30, 2020
USD ($)
Shares Issued And Outstanding [Line Items]  
2020 $ 188
2021 1,238
2022 2,875
2023 2,735
2024 1,004
Total $ 8,040