Quarterly report pursuant to Section 13 or 15(d)

Equity Incentive Plans and Stock-Based Compensation - Summary of Stock Option Activity (Details)

v3.21.2
Equity Incentive Plans and Stock-Based Compensation - Summary of Stock Option Activity (Details)
$ / shares in Units, shares in Thousands, $ in Thousands
9 Months Ended 12 Months Ended
Oct. 31, 2021
USD ($)
$ / shares
shares
Jan. 31, 2021
USD ($)
$ / shares
shares
Stock Options    
Outstanding, beginning balance (in shares) | shares 23,013  
Granted (in shares) | shares 779  
Exercised (in shares) | shares (7,723)  
Forfeited (in shares) | shares (380)  
Expired (in shares) | shares (7)  
Outstanding, ending balance (in shares) | shares 15,682 23,013
Weighted- Average Exercise Price    
Outstanding, beginning balance (in dollars per share) | $ / shares $ 1.58  
Granted (in dollars per share) | $ / shares 0.10  
Exercised (in dollars per share) | $ / shares 1.18  
Forfeited (in dollars per share) | $ / shares 2.44  
Expired (in dollars per share) | $ / shares 2.40  
Outstanding, ending balance (in dollars per share) | $ / shares $ 1.69 $ 1.58
Vested and exercisable, Number of Stock Options (in shares) | shares 7,915  
Vested and exercisable, Weighted-average exercise price (in dollars per share) | $ / shares $ 1.30  
Outstanding, Weighted-Average Remaining Contractual Life (years) 7 years 4 months 24 days 7 years 10 months 24 days
Vested and exercisable, Weighted-Average Remaining Contractual Life (years) 6 years 10 months 24 days  
Outstanding, Aggregate Intrinsic Value | $ $ 761,567 $ 1,207,831
Vested and exercisable, Aggregate Intrinsic Value | $ $ 387,410