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Stock-Based Compensation - Narrative (Details) $ / shares in Units, $ in Thousands |  | 3 Months Ended | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Nov. 27, 2020 USD ($) period shares | Oct. 31, 2024 USD ($) $ / shares | Oct. 31, 2023 USD ($) | Oct. 31, 2024 USD ($) $ / shares shares | Oct. 31, 2023 USD ($) shares | May 01, 2024 | Apr. 30, 2024 USD ($) | Jul. 31, 2022 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Total stock-based compensation expense |  | $ 57,038 | $ 53,169 | $ 111,721 | $ 104,049 |  |  |
Risk-free interest rate |  |  |  | 3.60% | 4.70% |  |  |
Expected dividend yield |  |  |  | 0.00% | 0.00% |  |  |
Expected volatility |  |  |  | 66.20% | 62.30% |  |  |
Accrued stock-settled bonus |  | 27,792 |  | $ 27,792 |  |  | $ 31,194 |
Accrued stock-settled bonus, noncurrent |  | 10,500 |  | 10,500 |  |  |  |
Stock options |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Unrecognized compensation cost |  | 74,800 |  | $ 74,800 |  |  |  |
Unrecognized compensation cost, weighted-average recognition period |  |  |  | 2 years 2 months 12 days |  |  |  |
RSUs |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Vesting period |  |  |  | 5 years |  |  |  |
Unrecognized compensation cost, weighted-average recognition period |  |  |  | 3 years 8 months 12 days |  |  |  |
Unrecognized stock-based compensation expense |  | $ 473,900 |  | $ 473,900 |  |  |  |
Granted, non-option (in shares) | shares |  |  |  | 7,569,000 |  |  |  |
RSUs | Share-Based Payment Arrangement, Tranche One |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Vesting percentages |  |  |  | 20.00% |  |  |  |
Vesting period |  |  |  | 1 year |  |  |  |
RSUs | Share-Based Payment Arrangement, Tranche Two |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Vesting percentages |  |  |  | 5.00% |  |  |  |
Performance Shares |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Maximum shares authorized (in shares) | shares |  |  |  |  |  |  |  | 1,700,000
Total stock-based compensation expense |  |  |  | $ 2,400 |  |  |  |
Stock price (in dollars per share) | $ / shares |  | $ 12.90 |  | $ 12.90 |  |  |  |
Risk-free interest rate |  |  |  | 3.70% |  |  |  |
Expected dividend yield |  |  |  | 0.00% |  |  |  |
Expected volatility |  |  |  | 51.40% |  |  |  |
2020 Incentive Plan | Stock options |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Expiration period (in years) |  |  |  | 10 years |  |  |  |
2020 Incentive Plan | Stock options | Share-Based Payment Arrangement, Tranche One |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Vesting percentages |  |  |  | 20.00% |  |  |  |
Vesting period |  |  |  | 1 year |  |  |  |
2020 Incentive Plan | Stock options | Share-Based Payment Arrangement, Tranche Two |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Vesting percentages |  |  |  | 2.00% |  |  |  |
Vesting period |  |  |  | 4 years |  |  |  |
2020 Employee Stock Purchase Plan | ESPP |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Total stock-based compensation expense |  |  |  | $ 2,300 | $ 3,100 |  |  |
Expected dividend yield |  |  |  | 0.00% | 0.00% |  |  |
Unrecognized stock-based compensation expense |  | $ 8,200 |  | $ 8,200 |  |  |  |
Percentage of employee earnings participation (up to) | 15.00% |  |  |  |  |  |  |
Initial offering period (in months) | 24 months |  |  |  |  |  |  |
Number of purchase periods | period | 4 |  |  |  |  |  |  |
Purchase period (in months) | 6 months |  |  |  |  |  |  |
Annual Bonus Program And Retention Bonus Program | RSUs |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Total stock-based compensation expense |  |  |  | $ 25,800 |  |  |  |
Common Class A and Common Class B | 2020 Incentive Plan |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Automatic increase to shares reserved for future issuance, percent of total shares |  |  |  |  |  | 7.00% |  |
Common Class A and Common Class B | 2020 Employee Stock Purchase Plan | ESPP |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Automatic increase to shares reserved for future issuance, percent of total shares |  |  |  |  |  | 1.00% |  |
Class A Common Stock | Restricted Stock |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Granted, non-option (in shares) | shares |  |  |  | 750,591 | 532,842 |  |  |
Class A Common Stock | 2020 Employee Stock Purchase Plan | ESPP |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Shares reserved for future issuance (in shares) | shares | 3,000,000 |  |  |  |  |  |  |
Shares purchased (in shares) | shares | 2,500 |  |  |  |  |  |  |
Shares purchased | $ 25 |  |  |  |  |  |  |
Fair market value (as a percent) | 85.00% |  |  |  |  |  |  |

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