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Basis of Presentation (Details) (USD $) In Millions, unless otherwise specified | Feb. 28, 2015 | May 31, 2014 | Feb. 28, 2014
--- | --- | --- | ---
Accounting Policies [Abstract] |  |  |
Restricted Cash (in Dollars) | $ 0.2 schl_RestrictedCash | $ 0.3 schl_RestrictedCash | $ 0.5 schl_RestrictedCash

X
- Definition The amounts of restricted cash included in Other Current Assets. + References No definition available. + Details
Name: | schl_RestrictedCash
Namespace Prefix: | schl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration