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Operating Segment Information - Schedule of Segment Reporting Information, by Operating Segment (Detail) (USD $) In Thousands, unless otherwise specified	4 Months Ended
	Apr. 19, 2014	Apr. 27, 2013	Dec. 28, 2013
Segment Reporting Information [Line Items]
Merger transaction and integration expenses	$ 4,168
Depreciation and amortization	27,553	12,726
Operating earnings	27,578	21,092
Capital expenditures	22,839	9,727
Total assets	1,972,447		1,998,674
Discontinued Operations [Member]
Segment Reporting Information [Line Items]
Total assets	4,764		4,767
Operating Segments [Member]
Segment Reporting Information [Line Items]
Inter-segment sales	2,333,727	780,278
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Inter-segment sales	(311,816)	(198,873)
Military [Member]
Segment Reporting Information [Line Items]
Merger transaction and integration expenses
Depreciation and amortization	4,193
Operating earnings	5,561
Capital expenditures	10,195
Total assets	496,722		495,218
Military [Member] \| Operating Segments [Member]
Segment Reporting Information [Line Items]
Inter-segment sales	684,167
Military [Member] \| Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Inter-segment sales
Food Distribution [Member]
Segment Reporting Information [Line Items]
Merger transaction and integration expenses	4,168
Depreciation and amortization	9,728	2,816
Operating earnings	14,361	19,321
Capital expenditures	6,567	2,907
Total assets	758,314		773,215
Food Distribution [Member] \| Operating Segments [Member]
Segment Reporting Information [Line Items]
Inter-segment sales	971,002	336,706
Food Distribution [Member] \| Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Inter-segment sales	(311,816)	(198,873)
Retail [Member]
Segment Reporting Information [Line Items]
Merger transaction and integration expenses
Depreciation and amortization	13,632	9,910
Operating earnings	7,656	1,771
Capital expenditures	6,077	6,820
Total assets	712,647		725,474
Retail [Member] \| Operating Segments [Member]
Segment Reporting Information [Line Items]
Inter-segment sales	678,558	443,572
Retail [Member] \| Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Inter-segment sales