Goodwill and Other Intangibles - Narrative (Details) - USD ($)	3 Months Ended	6 Months Ended		12 Months Ended
	May 31, 2024	Nov. 30, 2024	Nov. 30, 2023	May 31, 2024	May 31, 2023
Goodwill [Line Items]
Additions			$ 0	$ 0
Goodwill, Impairment Loss		$ 0	0	0
Amortizable intangible assets acquired		$ 85,300,000	5,800,000	$ 6,000,000.0
Useful life		8 years 9 months 18 days
Impairment of Intangible Assets, Finite-Lived	$ 3,100,000
Impairment of intangible assets (excluding goodwill)		$ 0	0
Amortizable Intangible Assets - Educational Programs
Goodwill [Line Items]
Amortizable intangible assets acquired			$ 5,800,000
Useful life	8 years			8 years
Amortizable Intangible Assets - Children's Book Publishing Business
Goodwill [Line Items]
Amortizable intangible assets acquired				$ 200,000
Useful life	5 years			5 years
9 Story Media Group Inc.
Goodwill [Line Items]
Additions		70,100,000
Amortizable intangible assets acquired		$ 85,300,000
Learning Ovations, Inc.
Goodwill [Line Items]
Amortizable intangible assets acquired					$ 4,100,000