Divestitures - Pre Tax Loss on Sale of Business and Certain Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Jul. 31, 2025	Jul. 31, 2024
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	$ (1,116)	$ 5,801
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	(934)	1,489
CrossKnowledge
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	4,360
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	0	(168)
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	0	120
Other disposition activity
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	$ (182)	$ 0