Income Taxes - Summary of Geographical Breakdown of Income (Loss) Before Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
Apr. 30, 2025	Apr. 30, 2024	Apr. 30, 2023
Income Tax Disclosure [Abstract]
Dutch	$ (135,145)	$ (233,089)	$ (283,010)
Foreign	103,576	110,333	66,133
Loss before income taxes	$ (31,569)	$ (122,756)	$ (216,877)

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