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Merger - Additional Information (Detail) (USD $)	3 Months Ended				9 Months Ended
	Jul. 12, 2014	Oct. 04, 2014	Dec. 28, 2013	Jul. 12, 2014 Food Distribution Segment [Member]	Oct. 04, 2014 Fair Value Adjustments [Member]
Business Acquisition [Line Items]
Intangible assets adjustments	$ 19,300,000				$ 7,000,000
Property and equipment adjustments	(23,000,000)
Goodwill adjustments	3,700,000
Goodwill		$ 297,352,000	$ 299,186,000	$ 36,600,000

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- Definition

Business acquisition purchase price adjustment increase decrease in property plant and equipment.

+ References

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Amount of increase (decrease) to assets, excluding financial assets and goodwill, lacking physical substance with a finite life for purchase accounting adjustments.

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

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Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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

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