v3.26.1
Segment Reporting (Details)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
USD ($)
Mar. 31, 2026
USD ($)
Jun. 30, 2025
USD ($)
Mar. 31, 2025
USD ($)
Jun. 30, 2026
USD ($)
segment
Jun. 30, 2025
USD ($)
Segment Reporting [Abstract]            
Number of operating segments | segment         1  
Number Of Reportable Segments Not Disclosed Flag         true  
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]            
Research and development $ 29,175   $ 30,325   $ 55,655 $ 61,205
General and administrative 23,197   12,608   39,621 31,344
Total operating expenses 52,372   42,933   95,276 92,549
Loss from operations: (52,372)   (42,933)   (95,276) (92,549)
Fair value change of warrant liabilities (205,577)   (2,540)   (74,661) 16,920
Interest income 3,744   1,898   6,163 4,284
Benefit from R&D tax credit 2,583   4,287   5,060 12,735
Interest expense (1,483)   (1,151)   (2,948) (2,275)
Foreign exchange (losses) gains (904)   2,349   (1,640) 4,482
Other income (expense) 546   (176)   1,030 627
Income tax expense (331)   (137)   (320) (491)
Net loss (253,794) $ 91,202 (38,403) $ (17,864) (162,592) (56,267)
Single Operating Segment            
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]            
Total operating expenses 52,372   42,933   95,276 92,549
Loss from operations: (52,372)   (42,933)   (95,276) (92,549)
Fair value change of warrant liabilities (205,577)   (2,540)   (74,661) 16,920
Interest income 3,744   1,898   6,163 4,284
Benefit from R&D tax credit 2,583   4,287   5,060 12,735
Interest expense (1,483)   (1,151)   (2,948) (2,275)
Foreign exchange (losses) gains (904)   2,349   (1,640) 4,482
Other income (expense) 546   (176)   1,030 627
Income tax expense (331)   (137)   (320) (491)
Net loss (253,794)   (38,403)   (162,592) (56,267)
Development expenses | Single Operating Segment            
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]            
Research and development 19,210   21,442   35,454 43,138
Personnel expenses | Single Operating Segment            
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]            
Research and development 6,568   6,113   13,360 12,182
General and administrative 8,212   4,618   13,972 9,679
Non-cash share-based compensation expense | Single Operating Segment            
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]            
Research and development 1,202   1,289   2,137 2,813
General and administrative 2,825   2,307   4,786 4,718
Facilities and other expenses | Single Operating Segment            
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]            
Research and development 2,195   1,481   4,704 3,072
General and administrative 6,282   2,316   8,458 4,216
Legal and professional fees | Single Operating Segment            
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]            
General and administrative $ 5,878   $ 3,367   $ 12,405 $ 12,731