v3.26.1
Segment Reporting - Summary of Segment Loss Including Segment Expenses (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
 [1]
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
 [1]
Segment Reporting [Abstract]            
Research, development, and laboratory $ 10,591,000   $ 8,962,000   $ 20,649,000 $ 21,053,000
Facility costs 10,365,000   10,856,000   20,844,000 22,573,000
Support functions 6,911,000   6,901,000   14,179,000 15,070,000
Stock-based compensation 5,342,000   6,629,000   11,004,000 13,651,000
Technical operations and manufacturing 5,647,000   4,511,000   9,633,000 11,948,000
Other [2] 2,651,000   2,243,000   5,379,000 4,480,000
Research and development related success payments and contingent consideration 23,913,000   10,262,000   32,346,000 12,219,000
Impairment of long-lived assets 0   44,611,000   0 44,611,000
Total operating expenses 65,420,000   94,975,000   114,034,000 145,605,000
Loss from operations (65,420,000)   (94,975,000)   (114,034,000) (145,605,000)
Interest income, net 1,129,000   577,000   2,080,000 1,569,000
Other income, net 656,000   598,000   1,109,000 847,000
Net loss $ (63,635,000) $ (47,210,000) $ (93,800,000) $ (49,389,000) $ (110,845,000) $ (143,189,000)
Segment reporting, other segment item, composition, description         Other includes licensing costs, consulting fees, insurance, and business taxes for the three and six months ended June 30, 2026 and 2025.  
[1] Certain amounts for the three and six months ended June 30, 2025 have been reclassified to conform to the presentation as of the three and six months ended June 30, 2026
[2] Other includes licensing costs, consulting fees, insurance, and business taxes for the three and six months ended June 30, 2026 and 2025