v3.25.4
Stock-based Compensation - Stock Options (Details) - Outstanding options to purchase common stock - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Number of Options      
Outstanding, beginning balance (in shares) 20,803,142    
Granted (in shares) 1,166,855 2,282,600 10,138,730
Exercised (in shares) (830,228)    
Forfeited (in shares) (2,009,819)    
Outstanding, ending balance (in shares) 19,129,950 20,803,142  
Options exercisable (in shares) 10,796,502    
Vested and expected to vest (in shares) 19,129,950    
Weighted Average Exercise Price (per share)      
Outstanding, beginning balance (in dollars per share) $ 2.61    
Granted (in dollars per share) 1.44    
Exercised (in dollars per share) 2.31    
Forfeited (in dollars per share) 3.36    
Outstanding, ending balance (in dollars per share) 2.47 $ 2.61  
Options exercisable (in dollars per share) 2.81    
Vested and expected to vest (in dollars per share) $ 2.47    
Weighted Average Remaining Contractual Life (in years)      
Weighted Average Remaining Contractual Term (in years) 7 years 1 month 6 days 7 years 9 months 18 days  
Options exercisable (in years) 6 years 4 months 24 days    
Vested and expected to vest (in years) 7 years 1 month 6 days    
Aggregate Intrinsic Value (in thousands)      
Outstanding intrinsic value $ 22 $ 11,507  
Options exercisable 22    
Vested and expected to vest $ 22