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Balance Sheet Components - Schedule of Prepaid and Other Current Assets (Details) - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Prepaid Expense And Other Assets Current [Abstract]    
Prepaid research and development $ 4,975 $ 7,895
Prepaid taxes 809 836
Prepaid other 729 2,506
Total prepaid and other current assets $ 6,513 $ 11,237