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Goodwill and Intangible Assets - Narrative (Details) - USD ($)	12 Months Ended
	Apr. 30, 2025	Apr. 30, 2024	Apr. 30, 2023
Revenues from External Customers and Long-Lived Assets [Line Items]
Impairment of goodwill	$ 0	$ 108,449,000	$ 99,800,000
Asset impairment charges	1,500,000	20,300,000	99,800,000
Goodwill	1,121,505,000	$ 1,091,368,000	$ 1,204,050,000
Education Services
Revenues from External Customers and Long-Lived Assets [Line Items]
Impairment of goodwill	31,000,000.0
University Services
Revenues from External Customers and Long-Lived Assets [Line Items]
Impairment of goodwill	68,800,000
Held-for-Sale \| Wiley Edge
Revenues from External Customers and Long-Lived Assets [Line Items]
Impairment of goodwill	81,700,000
Goodwill	0
University Services
Revenues from External Customers and Long-Lived Assets [Line Items]
Impairment of goodwill	11,400,000
Goodwill	0
Cross Knowledge
Revenues from External Customers and Long-Lived Assets [Line Items]
Impairment of goodwill	15,300,000
Goodwill	$ 0