v3.26.3
Share-based Compensation - Schedule of Company's Share Option Activity (Details) - Equity Incentive Plan 2023
$ / shares in Units, $ in Thousands
 9 Months Ended 12 Months Ended
Sep. 30, 2026
USD ($)
$ / shares
shares
Dec. 31, 2025
USD ($)
$ / shares
shares
Number of Options    
Beginning balance (in shares) | shares 16,463,011  
Granted (in shares) | shares 9,263,478  
Exercised (in shares) | shares (1,245,127)  
Cancelled (in shares) | shares (3,494,844)  
Ending balance (in shares) | shares 20,986,518 16,463,011
Options vested and exercisable | shares 8,950,324  
Weighted Average Exercise Price (per share)    
Beginning balance (in dollars per share) | $ / shares $ 2.40  
Granted (in dollars per share) | $ / shares 5.88  
Exercised (in dollars per share) | $ / shares 2.61  
Cancelled (in dollars per share) | $ / shares 2.84  
Ending balance (in dollars per share) | $ / shares 3.85 $ 2.40
Options vested and exercisable (in dollars per share) | $ / shares $ 2.29  
Weighted Average Remaining Contractual Life (Years)    
Options outstanding, Weighted Average Remaining Contractual Life (Years) 8 years 1 month 6 days 8 years 2 months 12 days
Options vested and exercisable, Weighted Average Remaining Contractual Life (Years) 6 years 9 months 18 days  
Aggregate Intrinsic Value    
Options outstanding, Aggregate Intrinsic Value | $ $ 25,680 $ 48,866
Options vested and exercisable, Aggregate Intrinsic Value | $ $ 19,206