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Derivatives and Hedging (Details) (USD $) In Millions, unless otherwise specified | 9 Months Ended
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Feb. 28, 2014 | Feb. 28, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract] |  |
Unrealized Gain On Foreign Currency Derivative Instruments Not Designated As Hedging Instruments | $ 0.1 |
UnrealizedLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments |  | $ 0.1

X
- Definition Amount of unrealized gain recognized in earnings in the period from the increase (decrease) in fair value of foreign currency derivatives not designated as hedging instruments. + References No definition available. + Details
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X
- Definition Amount of unrealized loss recognized in earnings in the period from the increase (decrease) in fair value of foreign currency derivatives not designated as hedging instruments. + References No definition available. + Details
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Namespace Prefix: | schl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
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