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Subsequent Events (Details)
$ in Millions
1 Months Ended 12 Months Ended
Mar. 31, 2025
USD ($)
employee
Feb. 28, 2025
target
item
Jan. 31, 2025
USD ($)
Dec. 31, 2024
employee
Employee Severance        
Subsequent Event [Line Items]        
Reduction in workforce, number of employees | employee       62
Reduction in workforce (as a percent)       58.00%
Subsequent Event | Employee Severance | 2025 Cash Preservation Plan        
Subsequent Event [Line Items]        
Reduction in workforce, number of employees | employee 37      
Reduction in workforce (as a percent) 84.00%      
Expected cost with the reduction in workforce | $ $ 3.8      
Subsequent Event | Moderna        
Subsequent Event [Line Items]        
Proceeds from collection of collaboration receivable | $     $ 2.9  
Subsequent Event | Moderna | Collaboration and License Agreement        
Subsequent Event [Line Items]        
Number of oncology research targets, nominated | item   10    
Number of research targets, replacement nominations   4    
Number of oncology research targets, ceased development   2    
Number of autoimmune research targets, ceased development   2    
Number of oncology research targets   12