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Stock-Based Compensation - Narrative (Details) $ / shares in Units, $ in Thousands |  | 12 Months Ended |  |
--- | --- | --- | --- | ---
Nov. 27, 2020 USD ($) period shares | Apr. 30, 2025 USD ($) $ / shares shares | Apr. 30, 2024 USD ($) $ / shares shares | Apr. 30, 2023 USD ($) $ / shares shares | May 01, 2023 | Jul. 31, 2022 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Weighted-average grant date fair value for options granted (in dollars per share) | $ / shares |  | $ 13.49 | $ 16.70 | $ 7.88 |  |
Stock options exercised, total intrinsic value |  | $ 94,100 | $ 89,700 | $ 24,400 |  |
Stock options vested, total grant date fair value |  | 34,700 | 34,700 | 49,900 |  |
Stock-based compensation expense |  | $ 230,988 | $ 215,761 | $ 216,542 |  |
Risk-free interest rate |  | 3.60% | 4.10% | 3.90% |  |
Expected dividend yield |  | 0.00% | 0.00% | 0.00% |  |
Expected volatility |  | 66.20% | 63.20% | 46.30% |  |
Accrued bonus |  | $ 37,500 | $ 31,200 |  |  |
Stock options |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Unrecognized compensation cost |  | $ 56,100 | $ 79,600 |  |  |
Unrecognized compensation cost, weighted-average recognition period (in years) |  | 2 years | 2 years 2 months 12 days |  |  |
RSUs |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Unrecognized compensation cost, weighted-average recognition period (in years) |  | 3 years 8 months 12 days | 3 years 8 months 12 days |  |  |
Vesting period (in years) |  | 5 years |  |  |  |
Stock-based compensation expense |  | $ 142,200 | $ 130,600 | $ 134,800 |  |
Unrecognized stock-based compensation expense, non-options |  | $ 562,900 | $ 422,600 |  |  |
Granted, non-option (in shares) | shares |  | 14,731,000 | 8,422,000 |  |  |
RSUs | Share-based Payment Arrangement, Tranche One |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Vesting period (in years) |  | 1 year |  |  |  |
Vesting percentages |  | 20.00% |  |  |  |
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] |  |  |  |  |  |
Stock-based compensation expense |  | $ 3,800 | $ 5,400 | 2,100 |  |
Maximum shares authorized (in shares) | shares |  |  |  |  |  | 1,700,000
Share price (in dollars per share) | $ / shares |  | $ 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 period (in years) |  | 1 year |  |  |  |
Vesting percentages |  | 20.00% |  |  |  |
2020 Incentive Plan | Stock options | Share-based Payment Arrangement, Tranche Two |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Vesting period (in years) |  | 4 years |  |  |  |
Vesting percentages |  | 2.00% |  |  |  |
2020 Employee Stock Purchase Plan | ESPP |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Stock-based compensation expense |  | $ 6,900 | $ 5,400 | $ 3,700 |  |
Expected dividend yield |  | 0.00% | 0.00% | 0.00% |  |
Unrecognized stock-based compensation expense, non-options |  | $ 11,200 | $ 2,700 |  |  |
Percentage of employee earnings participation (not exceeding) | 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] |  |  |  |  |  |
Stock-based compensation expense |  | $ 41,900 | $ 38,800 |  |  |
Common Class A And Common Class B | 2020 Incentive Plan |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Number of shares available for issuance (in shares) | shares |  | 6,225,512 |  |  |  |
Automatic increase to shares reserve for future issuance, percent of total shares outstanding |  |  | 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 reserve for future issuance, percent of total shares outstanding |  |  |  |  | 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 |  | 751,927 | 532,842 |  |  |
Class A Common Stock | 2020 Employee Stock Purchase Plan | ESPP |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Number of shares available for issuance (in shares) | shares |  | 5,588,711 | 5,049,150 |  |  |
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% |  |  |  |  |
Number of shares purchased (in shares) | shares |  | 697,498 | 863,412 | 310,784 |  |

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