Quarterly report pursuant to Section 13 or 15(d)

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

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Equity Incentive Plans and Stock-Based Compensation - Summary of Stock Option Activity (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 12 Months Ended
Apr. 30, 2022
Jan. 31, 2022
Stock Options    
Outstanding, beginning balance (in shares) 14,544  
Granted (in shares) 118  
Exercised (in shares) (1,283)  
Forfeited (in shares) (182)  
Outstanding, ending balance (in shares) 13,197 14,544
Weighted- Average Exercise Price    
Outstanding, beginning balance (in dollars per share) $ 1.64  
Granted (in dollars per share) 0.10  
Exercised (in dollars per share) 2.09  
Forfeited (in dollars per share) 2.15  
Outstanding, ending balance (in dollars per share) $ 1.58 $ 1.64
Vested and exercisable, Number of Stock Options (in shares) 7,404  
Vested and exercisable, Weighted-average exercise price (in dollars per share) $ 1.47  
Outstanding, Weighted-Average Remaining Contractual Life (years) 7 years 3 months 18 days 7 years 7 months 6 days
Vested and exercisable, Weighted-Average Remaining Contractual Life (years) 6 years 7 months 6 days  
Outstanding, Aggregate Intrinsic Value $ 214,498 $ 507,419
Vested and exercisable, Aggregate Intrinsic Value $ 121,135