v3.26.1
Agreements with Royalty Pharma - Summary of Changes in Fair Value of Derivative Liabilities (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Derivatives, Fair Value [Line Items]            
Change in fair value $ (1,100)   $ 3,000   $ 400 $ 2,600
RP Multi Tranche Loan Agreement Derivatives            
Derivatives, Fair Value [Line Items]            
Beginning balance 29,600 $ 31,100 11,700 $ 11,300 31,100 11,300
Settlement 0   (3,900)      
Change in fair value 1,100 (1,500) (3,000) 400    
Ending balance 30,700 $ 29,600 17,600 $ 11,700 30,700 17,600
RP Multi Tranche Loan Agreement Derivatives | Initial measurement            
Derivatives, Fair Value [Line Items]            
Ending balance $ 0   $ 12,800   $ 0 $ 12,800