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Investments - Additional Information (Detail) - USD ($)
$ in Thousands
 1 Months Ended 9 Months Ended
Jun. 27, 2024
Sep. 30, 2025
Sep. 30, 2024
Jan. 31, 2022
Jun. 30, 2021
Sep. 30, 2025
Dec. 31, 2024
Jun. 30, 2024
Schedule Of Investments [Line Items]                
Purchase of available-for-sale securities           $ 144,080    
Prepaid Expenses and Other Current Assets                
Schedule Of Investments [Line Items]                
Accrued interest receivable   $ 1,500       1,500 $ 1,000  
Thirona Bio, Inc.                
Schedule Of Investments [Line Items]                
Impairment loss   6,400       6,600    
Unrealized gain on investment           $ 1,300    
Interest receivable write off   $ 1,100            
Convertible Promissory Note | Thirona Bio, Inc.                
Schedule Of Investments [Line Items]                
Investment securities             $ 6,300  
Recognized gain (loss)     $ (1,600)          
Purchase of available-for-sale securities       $ 5,000 $ 3,000      
Interest rate         6.00%      
Principal amount               $ 8,000
Increased interest rate 10.00%