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Sales by Product Category (Detail) (USD $)	3 Months Ended		6 Months Ended
	Mar. 30, 2013	Mar. 24, 2012	Mar. 30, 2013	Mar. 24, 2012
Segment Reporting Information By Segment [Line Items]
Net sales	$ 918,638,125	$ 881,667,028	$ 1,851,429,558	$ 1,799,904,957
Grocery
Segment Reporting Information By Segment [Line Items]
Net sales	359,466,000	346,674,000	730,727,000	718,635,000
Non-foods
Segment Reporting Information By Segment [Line Items]
Net sales	170,271,000	167,002,000	347,975,000	342,651,000
Perishables
Segment Reporting Information By Segment [Line Items]
Net sales	218,433,000	202,579,000	438,381,000	412,448,000
Gasoline
Segment Reporting Information By Segment [Line Items]
Net sales	138,204,000	132,501,000	269,087,000	259,795,000
Grocery sales
Segment Reporting Information By Segment [Line Items]
Net sales	$ 886,374,000	$ 848,756,000	$ 1,786,170,000	$ 1,733,529,000

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- Definition

Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1(a))

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

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