Equity Incentive Plans - Assumptions Used to Estimated Fair Value of Equity Plans (Details)	12 Months Ended
	Apr. 30, 2025	Apr. 30, 2024	Apr. 30, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (in years)			6 years 7 days
Expected stock price volatility, minimum (in percentage)			60.70%
Expected stock price volatility, maximum (in percentage)			62.00%
Risk-free interest rate, minimum			3.10%
Risk-free interest rate, maximum			3.40%
Dividend yield (in percentage)			0.00%
ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (in years)	6 months	6 months
Expected stock price volatility, minimum (in percentage)	50.40%	47.30%
Expected stock price volatility, maximum (in percentage)	59.20%	63.30%
Risk-free interest rate, minimum	4.30%	5.40%
Risk-free interest rate, maximum	4.60%	5.50%
Dividend yield (in percentage)	0.00%	0.00%