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Balance Sheet Components - Schedule of Inventory (Detail) - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Schedule of Investments [Abstract]    
Raw materials $ 1,179 $ 1,241
Work-in-progress 34,906 36,003
Finished goods 4,611 3,192
Total inventories $ 40,696 $ 40,436