v3.25.3
Share-based Compensation - Summary of Stock Option Activity (Details)
$ / shares in Units, $ in Millions
9 Months Ended 12 Months Ended
Sep. 30, 2025
USD ($)
$ / shares
shares
Dec. 31, 2024
$ / shares
shares
Number of Shares    
Beginning balance (in shares) | shares 17,434,119  
Granted (in shares) | shares 5,387,740  
Exercised (in shares) | shares (1,087,469)  
Forfeited (in shares) | shares (858,214)  
Ending balance (in shares) | shares 20,876,176 17,434,119
Exercisable at end of period (in shares) | shares 12,757,975  
Vested and expected to vest at end of period (in shares) | shares 20,876,176  
Weighted-Average Exercise Price Per Share    
Beginning balance (in dollars per share) | $ / shares $ 7.77  
Granted (in dollars per share) | $ / shares 16.03  
Exercised (in dollars per share) | $ / shares 6.43  
Forfeited (in dollars per share) | $ / shares 10.60  
Ending balance (in dollars per share) | $ / shares 9.86 $ 7.77
Exercisable at end of period (in dollars per share) | $ / shares 7.92  
Vested and expected to vest at end of period (in dollars per share) | $ / shares $ 9.86  
Weighted-Average Remaining Contractual Term    
Options outstanding, weighted-average remaining contractual term 7 years 1 month 6 days 7 years 4 months 24 days
Options exercisable, weighted-average remaining contractual term 6 years  
Options vested and expected to vest at end of period, weighted-average remaining contractual term 7 years 1 month 6 days  
Aggregate Intrinsic Value (in millions)    
Aggregate intrinsic value of options | $ $ 300.5  
Aggregate intrinsic value of exercisable | $ $ 208.3