v3.26.1
License and Collaboration Agreements - Overland Therapeutics, Inc. (Details)
3 Months Ended 6 Months Ended
May 12, 2026
USD ($)
performanceObligation
shares
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
May 11, 2026
Dec. 31, 2025
USD ($)
May 24, 2024
USD ($)
Dec. 14, 2020
Research and Development Arrangement, Contract to Perform for Others [Line Items]                  
Number of remaining performance obligations extinguished | performanceObligation 2                
Collaboration revenue - related party   $ 4,640,000 $ 0 $ 4,640,000 $ 0        
Overland Therapeutics (Formerly Known As Allogene Overland)                  
Research and Development Arrangement, Contract to Perform for Others [Line Items]                  
Shares surrendered in connection with termination of license agreement (in shares) | shares 40,353,951                
Overland Therapeutics (Formerly Known As Allogene Overland) | License | Maximum                  
Research and Development Arrangement, Contract to Perform for Others [Line Items]                  
Revenue, remaining performance obligation, variable consideration amount               $ 115,000,000.0  
Overland Therapeutics (Formerly Known As Allogene Overland) | Manufacturing License, Know-How                  
Research and Development Arrangement, Contract to Perform for Others [Line Items]                  
Remaining performance obligation, extinguished $ 1,900,000                
Overland Therapeutics (Formerly Known As Allogene Overland) | Know-How Developed In Future Periods                  
Research and Development Arrangement, Contract to Perform for Others [Line Items]                  
Remaining performance obligation, extinguished $ 2,700,000                
Overland Therapeutics (Formerly Known As Allogene Overland)                  
Research and Development Arrangement, Contract to Perform for Others [Line Items]                  
Subsidiary, ownership percentage, noncontrolling owner               18.00%  
License agreement, minimum ownership threshold, percent               0.075  
Overland Pharmaceuticals Inc. | Overland Therapeutics (Formerly Known As Allogene Overland)                  
Research and Development Arrangement, Contract to Perform for Others [Line Items]                  
Subsidiary, ownership percentage, parent               82.00%  
Overland Pharmaceuticals Inc. | Overland US                  
Research and Development Arrangement, Contract to Perform for Others [Line Items]                  
Subsidiary, ownership percentage, parent               100.00%  
Overland Therapeutics (Formerly Known As Allogene Overland)                  
Research and Development Arrangement, Contract to Perform for Others [Line Items]                  
Ownership percentage 3.00%               49.00%
Equity method investments   0   0     $ 0    
Share transfer to non affiliate, percentage 25.00%                
Collaboration revenue - related party   $ 4,600,000 $ 0 $ 4,600,000 $ 0        
Overland Therapeutics (Formerly Known As Allogene Overland) | Voting Interest                  
Research and Development Arrangement, Contract to Perform for Others [Line Items]                  
Ownership percentage   20.00%   20.00%   20.00%      
Overland Therapeutics (Formerly Known As Allogene Overland) | Overland Pharmaceuticals Inc.                  
Research and Development Arrangement, Contract to Perform for Others [Line Items]                  
Ownership percentage                 51.00%