Income Taxes (Details)	9 Months Ended
Dec. 03, 2011
Income Taxes (Textual) [Abstract]
Number of months within which company does not anticipate significant change in unrecognized tax benefits	12 months

Number of months within which company does not anticipate significant change in unrecognized tax benefits.

No definition available.

Name:	svu_NumberOfMonthsWithinWhichCompanyDoesNotAnticipateSignificantChangeInUnrecognizedTaxBenefits
Namespace Prefix:	svu_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration