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Discontinued Operations - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Oct. 31, 2025 | Oct. 31, 2024 | Oct. 31, 2025 | Oct. 31, 2024
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |
Income/(loss) from discontinued operations, net of tax | $ 0 | $ 0 | $ 0 | $ 0

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