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Balance Sheet Components - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Prepaid Expense and Other Assets, Current [Abstract]        
Depreciation expense $ 0.5 $ 0.5 $ 1.6 $ 1.6