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Reporting Segment Information - Schedule of Segment Reporting Information, by Operating Segment (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 13, 2019	Jul. 14, 2018	Jul. 13, 2019	Jul. 14, 2018	Dec. 29, 2018
Segment Reporting Information [Line Items]
Net sales	$ 1,995,929	$ 1,895,953	$ 4,538,304	$ 4,281,026
Merger/acquisition and integration	582	804	1,364	3,010
Restructuring charges (gains) and asset impairment	14,581	(1,164)	8,919	5,037
Depreciation and amortization	20,529	19,007	47,161	44,244
Operating earnings (loss)	7,370	29,818	29,579	55,566
Capital expenditures	15,765	13,555	31,771	34,596
Total Assets	2,291,964		2,291,964		$ 1,971,912
Discontinued Operations [Member]
Segment Reporting Information [Line Items]
Total Assets	3,090		3,090		3,151
Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales	1,995,929	1,895,953	4,538,304	4,281,026
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Net sales	(226,636)	(198,388)	(515,044)	(451,712)
Food Distribution [Member]
Segment Reporting Information [Line Items]
Net sales	935,383	941,702	2,104,621	2,096,913
Merger/acquisition and integration		745	(130)	2,940
Restructuring charges (gains) and asset impairment	16,024	100	9,681	1,360
Depreciation and amortization	7,744	7,318	17,977	16,858
Operating earnings (loss)	272	18,724	24,864	43,245
Capital expenditures	3,189	5,965	7,438	18,410
Total Assets	1,096,965		1,096,965		1,074,125
Food Distribution [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales	935,383	941,702	2,104,621	2,096,913
Food Distribution [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Net sales	(226,636)	(198,388)	(515,044)	(451,712)
Military [Member]
Segment Reporting Information [Line Items]
Net sales	490,571	489,654	1,161,941	1,153,274
Merger/acquisition and integration				4
Restructuring charges (gains) and asset impairment		(830)		(830)
Depreciation and amortization	2,736	2,763	6,333	6,441
Operating earnings (loss)	(1,603)	3,099	(3,160)	4,612
Capital expenditures	1,271	1,275	2,413	1,529
Total Assets	412,734		412,734		405,587
Military [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales	490,571	489,654	1,161,941	1,153,274
Retail [Member]
Segment Reporting Information [Line Items]
Net sales	569,975	464,597	1,271,742	1,030,839
Merger/acquisition and integration	582	59	1,494	66
Restructuring charges (gains) and asset impairment	(1,443)	(434)	(762)	4,507
Depreciation and amortization	10,049	8,926	22,851	20,945
Operating earnings (loss)	8,701	7,995	7,875	7,709
Capital expenditures	11,305	6,315	21,920	14,657
Total Assets	779,175		779,175		$ 489,049
Retail [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales	$ 569,975	$ 464,597	$ 1,271,742	$ 1,030,839

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