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Stock-Based Compensation - Stock Option Activity (Details)
$ / shares in Units, shares in Thousands, $ in Thousands
 6 Months Ended 12 Months Ended
Oct. 31, 2024
USD ($)
$ / shares
shares
Apr. 30, 2024
USD ($)
$ / shares
shares
Number of Stock Options Outstanding    
Balance at beginning of period (in shares) | shares 31,328  
Options granted (in shares) | shares 1,187  
Options exercised (in shares) | shares (1,064)  
Options cancelled (in shares) | shares (513)  
Balance at end of period (in shares) | shares 30,938 31,328
Vested and exercisable at end of period (in shares) | shares 24,887  
Vested and expected to vest at end of period (in shares) | shares 30,938  
Weighted Average Exercise Price    
Balance at beginning of period (in dollars per share) | $ / shares $ 13.97  
Options granted (in dollars per share) | $ / shares 23.43  
Options exercised (in dollars per share) | $ / shares 25.82  
Options cancelled (in dollars per share) | $ / shares 19.77  
Balance at end of period (in dollars per share) | $ / shares 14.56 $ 13.97
Vested and exercisable at end of period (in dollars per share) | $ / shares 11.30  
Vested and expected to vest at end of period (in dollars per share) | $ / shares $ 14.56  
Weighted Average Remaining Contractual Life (years)    
Balance at beginning of period 5 years 4 months 28 days 5 years 8 months 4 days
Balance at end of period 5 years 4 months 28 days 5 years 8 months 4 days
Vested and exercisable at end of period 4 years 10 months 20 days  
Vested and expected to vest at end of period 5 years 4 months 28 days  
Aggregate Intrinsic Value    
Balance at beginning of period | $ $ 311,547 $ 268,167
Balance at end of period | $ 311,547 $ 268,167
Vested and exercisable at end of period | $ 331,739  
Vested and expected to vest at end of period | $ $ 311,547