Income Taxes - Components of Income Before Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2021
Income Tax Disclosure [Line Items]
Income before taxes	$ 447,503	$ 364,819	$ 137,094
United States
Income Tax Disclosure [Line Items]
Income before taxes	392,299	320,353	106,059
Foreign
Income Tax Disclosure [Line Items]
Income before taxes	$ 55,204	$ 44,466	$ 31,035

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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+ Details