Subsequent Events (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	Dec. 05, 2012	May 31, 2007	Dec. 19, 2012 Common Class A [Member]
Subsequent Event Dividend Declared Per Share (in Dollars per share)			$ 0.125
Subsequent Event, Amount, Revolving Loan Commitment	$ 425.0	$ 325.0
Subsequent Event, Amount, Potential Revolving Loan Increase	$ 150.0

The per share amount of a dividend declared but not paid after the balance sheet date as a subsequent event to the financials.

No definition available.

Name:	schl_SubsequentEventDividendDeclaredPerShare
Namespace Prefix:	schl_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant