Segment Reporting (Detail)	3 Months Ended
Mar. 23, 2013
Number of Reportable Segments	3
Military [Member]
Distribution Center	8
Food Distribution [Member]
Distribution Center	13
Retail [Member]
Number of Stores	75

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

No definition available.

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration