Acquisitions and Divestitures - Pre Tax Loss on Sale of Business and Certain Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	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