Derivatives and Hedging (Details) (USD $)	9 Months Ended
Feb. 28, 2015	Feb. 28, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative, Notional Amount	$ 9.1invest_DerivativeNotionalAmount	$ 13.9invest_DerivativeNotionalAmount
UnrealizedLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments	1,100,000
Unrealized Gain On Foreign Currency Derivative Instruments, Not Designated As Hedging Instruments		$ 100,000

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.

No definition available.

Name:	schl_UnrealizedGainOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments
Namespace Prefix:	schl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration