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Acquisitions and Divestitures - Pre Tax Loss on Sale of Business and Certain Assets (Details) - USD ($) $ in Thousands | 12 Months Ended
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Apr. 30, 2025 | Apr. 30, 2024 | Apr. 30, 2023
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Net (loss) gain on sale of businesses, assets, and impairment charges related to assets held-for-sale | $ (23,340) | $ (183,389) | $ 10,177
Cross Knowledge |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Net (loss) gain on sale of businesses, assets, and impairment charges related to assets held-for-sale | 4,119 | (55,440) | 0
Wiley Edge |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Net (loss) gain on sale of businesses, assets, and impairment charges related to assets held-for-sale | (14,852) | (19,401) | 0
University Services |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Net (loss) gain on sale of businesses, assets, and impairment charges related to assets held-for-sale | (12,578) | (107,048) | 0
Tuition Manager |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Net (loss) gain on sale of businesses, assets, and impairment charges related to assets held-for-sale | 120 | (1,500) | 0
Test Prep and Advancement Courses |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Net (loss) gain on sale of businesses, assets, and impairment charges related to assets held-for-sale | 0 | 0 | 10,177
Sale of assets |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Net (loss) gain on sale of businesses, assets, and impairment charges related to assets held-for-sale | $ (149) | $ 0 | $ 0

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