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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

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Description of the Business, Basis of Presentation and Summary of Significant Accounting Policies - Narrative (Details) $ in Millions	12 Months Ended
	May 31, 2024 USD ($) segment	May 31, 2023 USD ($)	May 31, 2022 USD ($)	Jun. 01, 2023
Property, Plant and Equipment [Line Items]
Allowance for doubtful accounts receivable	$ 14.9	$ 16.7
Capitalized computer software, net	54.6	62.7
Capitalized computer software, amortization expense	$ 25.1	25.3	$ 26.4
Useful life of intangible assets	6 years 1 month 6 days
Royalty advances, net	$ 83.2	79.1
Reporting units subject to goodwill impairment \| segment	5
Advertising expense	$ 61.7	76.9	$ 69.5
Capitalized costs	14.4	6.2
Long-lived assets	$ 457.3	$ 458.7
Number of International Locations Export Business	120
Scholastic, Inc. \| Make Believe Ideas Limited (MBI)
Property, Plant and Equipment [Line Items]
Noncontrolling interest, ownership percentage by parent		95.00%		100.00%
Founder and CEO of MBI \| Make Believe Ideas Limited (MBI)
Property, Plant and Equipment [Line Items]
Noncontrolling ownership percentage		5.00%
Make Believe Ideas Limited (MBI) \| Scholastic, Inc.
Property, Plant and Equipment [Line Items]
Noncontrolling interest, ownership percentage by parent		95.00%		100.00%
Minimum
Property, Plant and Equipment [Line Items]
Initial term	3 years
Maximum
Property, Plant and Equipment [Line Items]
Initial term	10 years
Buildings
Property, Plant and Equipment [Line Items]
Depreciable life	40 years
Building Improvements
Property, Plant and Equipment [Line Items]
Depreciable life	25 years
Capitalized Software \| Minimum
Property, Plant and Equipment [Line Items]
Depreciable life	3 years
Capitalized Software \| Maximum
Property, Plant and Equipment [Line Items]
Depreciable life	10 years
Furniture and Fixtures
Property, Plant and Equipment [Line Items]
Depreciable life	10 years
Customer Lists \| Minimum
Property, Plant and Equipment [Line Items]
Useful life of intangible assets	5 years
Customer Lists \| Maximum
Property, Plant and Equipment [Line Items]
Useful life of intangible assets	10 years
Prepublication Costs \| Minimum
Property, Plant and Equipment [Line Items]
Useful life of intangible assets	2 years
Prepublication Costs \| Maximum
Property, Plant and Equipment [Line Items]
Useful life of intangible assets	5 years
Intellectual Property
Property, Plant and Equipment [Line Items]
Useful life of intangible assets	5 years