Stock-Based Compensation - Narrative (Details) $ / shares in Units, $ in Thousands		3 Months Ended		9 Months Ended
	Nov. 27, 2020 USD ($) period shares	Jan. 31, 2025 USD ($) $ / shares	Jan. 31, 2024 USD ($)	Jan. 31, 2025 USD ($) $ / shares shares	Jan. 31, 2024 USD ($) shares	May 01, 2024	Jul. 31, 2022 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense		$ 62,652	$ 54,983	$ 174,373	$ 159,032
Risk-free interest rate				3.60%	3.90%
Expected dividend yield				0.00%	0.00%
Expected volatility				66.20%	63.50%
Accrued bonus		32,900		$ 32,900
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost		65,400		$ 65,400
Unrecognized compensation cost, weighted-average recognition period				2 years 1 month 6 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 9 months 18 days
Unrecognized stock-based compensation expense		$ 579,800		$ 579,800
Granted, non-option (in shares) | shares				12,676,000
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				$ 3,100
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				$ 4,400	$ 4,300
Expected dividend yield				0.00%	0.00%
Unrecognized stock-based compensation expense		$ 5,700		$ 5,700
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				$ 37,600
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				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]
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%