v3.25.4
Stock-based compensation - Stock option activity (Details)
$ / shares in Units, $ in Thousands
9 Months Ended 12 Months Ended
Dec. 31, 2025
USD ($)
$ / shares
shares
Mar. 31, 2025
USD ($)
$ / shares
shares
Number of Shares    
Outstanding at beginning of the period (in shares) | shares 10,214,878  
Granted (in shares) | shares 2,183,724  
Exercised (in shares) | shares (70,966)  
Cancelled (in shares) | shares (399,666)  
Outstanding at end of the period (in shares) | shares 11,927,970 10,214,878
Options exercisable (in shares) | shares 8,014,980  
Options vested and expected to vest (in shares) | shares 11,927,970  
Weighted Average Exercise Price    
Outstanding at beginning of the period (in dollars per share) | $ / shares $ 15.22  
Granted (in dollars per share) | $ / shares 8.42  
Exercised (in dollars per share) | $ / shares 4.08  
Cancelled (in dollars per share) | $ / shares 13.60  
Outstanding at end of the period (in dollars per share) | $ / shares 14.10 $ 15.22
Options exercisable (in dollars per share) | $ / shares 16.09  
Options vested and expected to vest (in dollars per share) | $ / shares $ 14.10  
Weighted Average Contractual Term (Years)    
Outstanding (years) 5 years 9 months 29 days 6 years 2 months 26 days
Options exercisable (years) 4 years 5 months 23 days  
Options vested and expected to vest (years) 5 years 9 months 29 days  
Aggregate Intrinsic Value    
Outstanding | $ $ 12,758 $ 10,652
Options exercisable | $ 8,281  
Options vested and expected to vest | $ $ 12,758