v3.26.1
Stock-based Compensation - Stock Option Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Number of Shares    
Beginning of period (in shares) 18,004,681  
Granted (in shares) 204,100  
Exercised (in shares) 0  
Forfeited (in shares) (893,265)  
End of period (in shares) 17,315,516 18,004,681
Number of shares, Vested and exercisable (in shares) 8,490,916  
Number of shares, Vested and expected to vest (in shares) 17,315,516  
Weighted Average Exercise Price Per Share    
Options outstanding, beginning of period (in dollars per share) $ 4.25  
Granted (in dollars per share) 1.06  
Exercised (in dollars per share) 0  
Forfeited (in dollars per share) 4.19  
Options outstanding, end of period (in dollars per share) 4.21 $ 4.25
Weighted average exercise price, Vested and exercisable (in dollars per share) 5.23  
Weighted average exercise price, Vested and expected to vest (in dollars per share) $ 4.21  
Weighted Average Remaining Contractual Term and Aggregate Intrinsic Value    
Weighted average remaining contractual term, outstanding (in years) 7 years 9 months 18 days 7 years 8 months 12 days
Weighted average remaining contractual term, Vested and exercisable (in years) 6 years 8 months 12 days  
Weighted average remaining contractual term, Vested and expected to vest (in years) 7 years 9 months 18 days  
Aggregate intrinsic value, outstanding $ 0 $ 0
Aggregate intrinsic value, Vested and exercisable 0  
Aggregate intrinsic value, Vested and expected to vest $ 0