v3.26.1
Segments - Schedule of Segment Reporting Information, by Segment (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Segment Reporting Information [Line Items]    
Collaboration and other research and development revenues $ 2,831 $ 4,658
Operating expenses:    
Stock-based compensation expenses 2,102 2,979
Interest expense related to sale of future revenues (1,072) (2,216)
Interest income, net 1,206 2,716
Other expense, net (113) (425)
Net loss (24,982) (76,088)
Reportable Segment    
Segment Reporting Information [Line Items]    
Collaboration and other research and development revenues 2,831 4,658
Operating expenses:    
Interest expense related to sale of future revenues (1,072) (2,216)
Interest income, net 1,206 2,716
Other expense, net (113) (425)
Net loss (24,982) (76,088)
Research and development    
Operating expenses:    
Stock-based compensation expenses 544 907
Research and development | Reportable Segment    
Operating expenses:    
Employee related expenses 5,419 14,167
External research and development expenses 3,504 35,355
Facility expenses 3,224 9,393
Stock-based compensation expenses 544 907
Sublicense and license fees 2,411 17
Other expenses 2,498 5,997
Restructuring and impairment charges 0 39,243
General and administrative    
Operating expenses:    
Stock-based compensation expenses 1,558 2,072
General and administrative | Reportable Segment    
Operating expenses:    
Employee related expenses 2,109 5,105
Facility expenses 1,574 2,823
Stock-based compensation expenses 1,558 2,072
Professional service expenses 1,588 2,439
Intellectual property and patent related fees 3,405 2,546
Restructuring and impairment charges $ 0 $ 1,610