Long-Term Debt - Schedule of Redemption of Notes at Applicable Redemption Prices (Detail) - 4.625% Senior Unsecured Notes due 2027	12 Months Ended
	Apr. 30, 2024
2022
Debt Instrument [Line Items]
Percentage of principal amount of debt redeemed	102.313%
2023
Debt Instrument [Line Items]
Percentage of principal amount of debt redeemed	101.156%
2024 and thereafter
Debt Instrument [Line Items]
Percentage of principal amount of debt redeemed	100.00%