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Balance Sheet Components - Schedule of Inventory (Detail) - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Schedule of Investments [Abstract]    
Raw materials $ 1,231 $ 1,363
Work-in-progress 35,205 21,499
Finished goods 3,514 8,153
Total inventories $ 39,950 $ 31,015