v3.21.2
Stock-Based Compensation - Stock options - Summary (Details)
3 Months Ended 6 Months Ended
Jul. 31, 2021
$ / shares
shares
Jul. 31, 2021
$ / shares
shares
Number of Shares    
Options outstanding at beginning of period (in shares) | shares   6,646,000
Options granted (in shares) | shares 0 93,000
Exercised (in shares) | shares   (1,761,000)
Canceled (in shares) | shares   (111,000)
Options outstanding at end of period (in shares) | shares 4,867,000 4,867,000
Options vested and expected to vest at end of period (in shares) | shares 4,867,000 4,867,000
Options exercisable at end of period (in shares) | shares 2,811,000 2,811,000
Weighted-Average Exercise Price Per Share    
Options outstanding at beginning of period (in usd per share) | $ / shares   $ 8.24
Granted (in usd per share) | $ / shares   3.19
Exercised (in usd per share) | $ / shares   5.80
Canceled (in usd per share) | $ / shares   10.01
Options outstanding at end of period (in usd per share) | $ / shares $ 8.99 8.99
Options vested and expected to vest at end of period (in usd per share) | $ / shares 8.99 8.99
Options exercisable at end of period (in usd per share) | $ / shares $ 6.19 $ 6.19