Capital Stock and Stock-Based Awards (Details) - Schedule of restricted stock units under the management stock purchase plan (USD $)	12 Months Ended
May 31, 2013	May 31, 2012
Schedule of restricted stock units under the management stock purchase plan [Abstract]
MSPP RSUs allocated	87,317	22,486
Purchase price per unit (in Dollars per share)	$ 19.73	$ 17.78

Price per share of restricted stock units under the management stock purchase plan during the period.

No definition available.

Name:	schl_RestrictedStockUnitsPricePerShareUnderManagementStockPurchasePlan
Namespace Prefix:	schl_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration