v3.26.1
Organization and Nature of the Business - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended
Oct. 07, 2025
Jan. 23, 2024
Aug. 31, 2022
Mar. 12, 2021
Jul. 31, 2025
Nov. 30, 2022
Mar. 31, 2026
Dec. 31, 2025
Jan. 31, 2024
Jan. 22, 2024
Schedule Of Equity Method Investments [Line Items]                    
Equity transfer agreement         In July 2025, Adicet Therapeutics entered into an equity transfer agreement with the then-stockholders of Shanghai Adicet to acquire 100% equity interests of Shanghai Adicet from its then-stockholders (the Acquisition).          
Sale of Stock, Price Per Share $ 16                  
Shares were sold at a price                   $ 38.3984
Common stock price per share $ 0.0016           $ 0.0001 $ 0.0001   $ 0.0016
Issuance of common stock             9,597,693 9,586,770   332,812
Estimated offering expenses   $ 91,700                
Accumulated deficit             $ (634,941) $ (614,697)    
Adicet Therapeutics [Member]                    
Schedule Of Equity Method Investments [Line Items]                    
Accumulated deficit             $ 634,900      
Underwriting Agreement                    
Schedule Of Equity Method Investments [Line Items]                    
Discount on underwriters warrant 6.00%                  
Estimated offering expenses $ 74,800                  
2021 Sales Agreement                    
Schedule Of Equity Method Investments [Line Items]                    
Aggregate number of shares sold     163,233              
Sale of Stock, Price Per Share     $ 275.68              
Sales agent commissions and expenses       $ 43,400            
Aggregate net proceed                 $ 19,300  
Common Stock not sold           $ 30,000        
Common stock price per share     $ 0.0001              
Additional Common Stock not sold           70,000        
Aggregate gross proceeds           $ 100,000        
Common Stock [Member]                    
Schedule Of Equity Method Investments [Line Items]                    
Issuance of common stock                   332,813
Common Stock [Member] | Jefferies LLC                    
Schedule Of Equity Method Investments [Line Items]                    
Shares were sold at a price                   $ 38.4
Warrants outstanding                   527,833
Issuance of common stock                   1,690,917
Common Stock [Member] | Underwriting Agreement                    
Schedule Of Equity Method Investments [Line Items]                    
Sale of Stock, Price Per Share $ 15.04                  
Shares were sold at a price $ 16                  
Warrants outstanding 625,000                  
Issuance of common stock 4,375,062                  
Pre Funded Warrant | Jefferies LLC                    
Schedule Of Equity Method Investments [Line Items]                    
Underwriting agreement to purchase             30      
Discount on underwriters warrant                   6.00%
Purchase price per share                   $ 36.0944
Shares were sold at a price                   38.3984
Pre Funded Warrant | Jefferies LLC | Initial Public Offering                    
Schedule Of Equity Method Investments [Line Items]                    
Shares were sold at a price                   0.0016
Pre Funded Warrant | Underwriting Agreement                    
Schedule Of Equity Method Investments [Line Items]                    
Shares were sold at a price $ 15.9984                  
Warrants outstanding 15.03856                  
Pre Funded Warrant | Underwriting Agreement | Initial Public Offering                    
Schedule Of Equity Method Investments [Line Items]                    
Shares were sold at a price $ 0.0016                  
Pre Funded Warrant | Underwriting Agreement | Jefferies LLC                    
Schedule Of Equity Method Investments [Line Items]                    
Purchase price per share                   $ 36.096
Maximum | 2021 Sales Agreement                    
Schedule Of Equity Method Investments [Line Items]                    
Aggregate gross proceeds       $ 75,000