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Stockholders’ Equity and Employee Incentive Plans - Summary of Stock Option Activity under Stock Plans (Details) - Stock options outstanding - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Apr. 30, 2024
Jan. 31, 2024
Options Outstanding, Number of Options    
Beginning balance (in shares) 5,889,938  
Options exercised (in shares) (406,055)  
Options cancelled (in shares) (18,710)  
Ending balance (in shares) 5,465,173 5,889,938
Options vested and expected to vest (in shares) 5,465,173  
Options vested and exercisable (in shares) 5,152,472  
Options Outstanding, Weighted Average Exercise Price    
Beginning balance (in dollars per share) $ 10.38  
Options exercised (in dollars per share) 8.11  
Options cancelled (in dollars per share) 24.78  
Ending balance (in dollars per share) 10.50 $ 10.38
Options vested and expected to vest (in dollars per share) 10.50  
Options vested and exercisable (in dollars per share) $ 9.80  
Stock Options Additional Disclosures    
Options outstanding, weighted average remaining contractual term (in years) 4 years 6 months 18 days 4 years 10 months 2 days
Options vested and expected to vest, weighted-average contractual term (in years) 4 years 6 months 18 days  
Options vested and exercisable, weighted-average contractual term (in years) 4 years 4 months 28 days  
Options outstanding, aggregate intrinsic value $ 75,355 $ 86,742
Options vested and expected to vest, aggregate intrinsic value 75,355  
Options vested and exercisable, aggregate intrinsic value $ 74,479