v3.26.3
Investments - Additional Information (Detail) - USD ($)
$ in Thousands
 1 Months Ended 3 Months Ended 9 Months Ended
Jan. 31, 2022
Jun. 30, 2021
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Schedule Of Investments [Line Items]            
Purchase of available-for-sale securities       $ 43,778 $ 144,080  
Location, Statement of Financial Position, Balance [Axis]: us-gaap:PrepaidExpenseAndOtherAssetsCurrent            
Schedule Of Investments [Line Items]            
Accrued interest receivable       400   $ 700
Thirona Bio, Inc.            
Schedule Of Investments [Line Items]            
Impairment loss       6,600    
Unrealized gain on investment       $ 1,300    
Interest receivable write off     $ 1,100   $ 1,100  
Convertible Promissory Note | Thirona Bio, Inc.            
Schedule Of Investments [Line Items]            
Purchase of available-for-sale securities $ 5,000 $ 3,000