Goodwill and Other Intangibles - Narrative (Details) - USD ($)		3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 01, 2022	Feb. 29, 2024	Nov. 30, 2023	Feb. 29, 2024	Feb. 28, 2023	May 31, 2023
Goodwill [Line Items]
Additions				$ 0	$ 7,000,000.0	$ 7,600,000
Goodwill, Impairment Loss				0	0	0
Amortizable intangible assets acquired		$ 200,000	$ 5,800,000	$ 6,000,000.0	4,100,000	4,100,000
Useful life		6 years		6 years
Impairment of intangible assets (excluding goodwill)				$ 0	$ 0	$ 0
Learning Ovations, Inc.
Goodwill [Line Items]
Amortizable intangible assets acquired	$ 4,100,000
Useful life		7 years		7 years
Educational Program
Goodwill [Line Items]
Useful life		8 years		8 years
Children's Book Publishing & Distribution
Goodwill [Line Items]
Useful life		5 years		5 years
Education
Goodwill [Line Items]
Additions	7,600,000
Education | Learning Ovations, Inc.
Goodwill [Line Items]
Additions	$ 7,600,000