v3.26.1
Equity Incentive Plans and Stock-Based Compensation - Schedule of Option Activity (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 12 Months Ended
Apr. 30, 2026
Jan. 31, 2026
Stock Options    
Outstanding, beginning balance (in shares) 6,790  
Granted (in shares) 1,774  
Exercised (in shares) (1,254)  
Forfeited (in shares) (93)  
Outstanding, ending balance (in shares) 7,217 6,790
Weighted-Average Exercise Price    
Outstanding, beginning balance (in dollars per share) $ 0.57  
Granted (in dollars per share) 0.10  
Exercised (in dollars per share) 0.28  
Forfeited (in dollars per share) 0.14  
Outstanding, ending balance (in dollars per share) $ 0.51 $ 0.57
Outstanding, Weighted-Average Remaining Contractual Life (years) 8 years 7 years 6 months
Outstanding, Aggregate Intrinsic Value $ 70,625 $ 81,589
Vested and exercisable, Number of Stock Options (in shares) 2,339  
Vested and exercisable, Weighted-Average Exercise Price (in dollars per share) $ 1.38  
Vested and exercisable, Weighted-Average Remaining Contractual Life (years) 5 years 8 months 12 days  
Vested and exercisable, Aggregate Intrinsic Value $ 20,866