v2.3.0.11

Derivatives and Hedging (Detail) (USD $) In Millions	3 Months Ended
	Aug. 31, 2011	Aug. 31, 2010
Unrealized Gain On Foreign Currency Derivative Instruments Not Designated As Hedging Instruments	$ 0.1	$ 1.0

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.

+ Details

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