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Summary of Significant Accounting Policies, Recently Issued, and Recently Adopted Accounting Standards (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2022
Book Overdrafts [Abstract]
Bank overdrafts	$ 10,100	$ 14,600
Sales Return Reserves [Abstract]
Print book sales return reserve net liability balance	(14,448)	(14,419)
Increase in Inventories, net	7,833	6,923
Decrease in Accrued royalties	(3,112)	(3,240)
Increase in Contract liabilities	25,393	24,582
Inventories [Abstract]
LIFO Inventory Amount	11,400	16,600
Marketing and Advertising Expense [Abstract]
Advertising and marketing costs	61,709	93,385	$ 100,572
Cost of Sales
Marketing and Advertising Expense [Abstract]
Advertising and marketing costs	28,809	55,907	62,889
Operating and administrative expenses
Marketing and Advertising Expense [Abstract]
Advertising and marketing costs	$ 32,900	$ 37,478	$ 37,683
Book composition costs | Minimum
Product Development Assets [Abstract]
Estimated useful life	1 year
Book composition costs | Maximum
Product Development Assets [Abstract]
Estimated useful life	3 years
Other Product Development Costs | Weighted Average
Product Development Assets [Abstract]
Estimated useful life	3 years
Computer Software | Minimum
Property Plant and Equipment Useful Life [Abstract]
Property, plant and equipment, Useful life	3 years
Computer Software | Maximum
Property Plant and Equipment Useful Life [Abstract]
Property, plant and equipment, Useful life	10 years
Computer Hardware | Minimum
Property Plant and Equipment Useful Life [Abstract]
Property, plant and equipment, Useful life	3 years
Computer Hardware | Maximum
Property Plant and Equipment Useful Life [Abstract]
Property, plant and equipment, Useful life	5 years
Buildings and Leasehold Improvements | Maximum
Property Plant and Equipment Useful Life [Abstract]
Property, plant and equipment, Useful life	40 years
Furniture, Fixtures, and Warehouse Equipment | Minimum
Property Plant and Equipment Useful Life [Abstract]
Property, plant and equipment, Useful life	5 years
Furniture, Fixtures, and Warehouse Equipment | Maximum
Property Plant and Equipment Useful Life [Abstract]
Property, plant and equipment, Useful life	10 years
Software Development | Minimum
Property Plant and Equipment Useful Life [Abstract]
Property, plant and equipment, Useful life	3 years
Software Development | Maximum
Property Plant and Equipment Useful Life [Abstract]
Property, plant and equipment, Useful life	5 years
Enterprise Resource Planning and Related Systems
Property Plant and Equipment Useful Life [Abstract]
Property, plant and equipment, Useful life	10 years
Content and publishing rights | Weighted Average
Finite Lived Intangible Asset Useful Life [Abstract]
Estimated useful life	27 years
Customer relationships | Weighted Average
Finite Lived Intangible Asset Useful Life [Abstract]
Estimated useful life	16 years
Developed technology
Finite Lived Intangible Asset Useful Life [Abstract]
Estimated useful life	7 years
Brands and trademarks | Weighted Average
Finite Lived Intangible Asset Useful Life [Abstract]
Estimated useful life	16 years
Covenants not to compete | Weighted Average
Finite Lived Intangible Asset Useful Life [Abstract]
Estimated useful life	4 years
Performance-based Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Abstract]
Target period for stock-based compensation expense in advance of actual financial results	3 years

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