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v3.23.3

Income Taxes and Other Taxes (Details) | 3 Months Ended | 6 Months Ended
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Nov. 30, 2023 | Nov. 30, 2022 | Nov. 30, 2023 | Nov. 30, 2022
Income Tax And Non Income Tax Disclosure [Abstract] |  |  |  |
Effective income tax rate (percentage) | 24.20% | 25.30% | 22.90% | 30.20%

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- Definition -- None. No documentation exists for this element. -- + References No definition available. + Details
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Namespace Prefix: | schl_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-12 + Details
Name: | us-gaap_EffectiveIncomeTaxRateContinuingOperations
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration