Quarterly report pursuant to Section 13 or 15(d)

Research and Development Agreements - Schedule of Research and Development Revenues Disaggregated by Location (Detail)

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Research and Development Agreements - Schedule of Research and Development Revenues Disaggregated by Location (Detail) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Revenue Recognition [Line Items]        
Total revenue $ 6,796 $ 4,240 $ 50,290 $ 17,143
Research and development revenue        
Revenue Recognition [Line Items]        
Total revenue 5,732 4,240 45,986 17,143
Research and development revenue | JAPAN        
Revenue Recognition [Line Items]        
Total revenue 0 0 0 2,586
Research and development revenue | UNITED STATES        
Revenue Recognition [Line Items]        
Total revenue $ 5,732 $ 4,240 $ 45,986 $ 14,557