Quarterly report pursuant to Section 13 or 15(d)

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

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Equity Incentive Plans and Stock-Based Compensation - Summary of Restricted Stock Unit Activity (Details) - Restricted Stock Units
shares in Thousands
3 Months Ended
Apr. 30, 2021
$ / shares
shares
RSUs  
Unvested as of January 31, 2021 | shares 34,753
Granted | shares 2,818
Vested | shares (17,921)
Forfeited | shares (513)
Unvested as of April 30, 2021 | shares 19,137
Weighted-Average Grant Date Fair Value Per Share  
Unvested as of January 31, 2021 | $ / shares $ 10.80
Granted | $ / shares 56.00
Vested | $ / shares 6.40
Forfeited | $ / shares 12.45
Unvested as of April 30, 2021 | $ / shares $ 21.53