Reporting Segment Information - Schedule of Segment Reporting Information, by Operating Segment (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jul. 11, 2020	Jul. 13, 2019	Jul. 11, 2020	Jul. 13, 2019	Dec. 28, 2019
Segment Reporting Information [Line Items]
Net sales	$ 2,184,101	$ 1,995,929	$ 5,040,557	$ 4,538,304
Merger/acquisition and integration		582		1,364
Restructuring charges (gains) and asset impairment	3,675	14,581	13,912	8,919
Depreciation and amortization	20,097	20,529	48,126	47,161
Operating earnings (loss)	33,972	7,370	56,002	29,579
Capital expenditures	12,716	15,765	30,609	31,771
Total Assets	2,296,549		2,296,549		$ 2,275,609
Discontinued Operations [Member]
Segment Reporting Information [Line Items]
Total Assets					3,090
Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales	2,184,101	1,995,929	5,040,557	4,538,304
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Net sales	273,892	226,636	598,020	515,044
Food Distribution [Member]
Segment Reporting Information [Line Items]
Net sales	1,089,861	935,383	2,459,357	2,104,621
Merger/acquisition and integration				(130)
Restructuring charges (gains) and asset impairment	3,462	16,024	12,684	9,681
Depreciation and amortization	6,965	7,744	17,521	17,977
Operating earnings (loss)	14,409	272	25,799	24,864
Capital expenditures	4,377	3,189	11,396	7,438
Total Assets	1,187,666		1,187,666		1,087,307
Food Distribution [Member] \| Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales	1,089,861	935,383	2,459,357	2,104,621
Food Distribution [Member] \| Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Net sales	273,892	226,636	598,020	515,044
Retail [Member]
Segment Reporting Information [Line Items]
Net sales	631,257	569,975	1,413,824	1,271,742
Merger/acquisition and integration		582		1,494
Restructuring charges (gains) and asset impairment	213	(1,443)	1,228	(762)
Depreciation and amortization	10,325	10,049	24,081	22,851
Operating earnings (loss)	24,453	8,701	37,098	7,875
Capital expenditures	5,596	11,305	15,190	21,920
Total Assets	750,405		750,405		794,413
Retail [Member] \| Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales	631,257	569,975	1,413,824	1,271,742
Military [Member]
Segment Reporting Information [Line Items]
Net sales	462,983	490,571	1,167,376	1,161,941
Depreciation and amortization	2,807	2,736	6,524	6,333
Operating earnings (loss)	(4,890)	(1,603)	(6,895)	(3,160)
Capital expenditures	2,743	1,271	4,023	2,413
Total Assets	358,478		358,478		$ 390,799
Military [Member] \| Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales	$ 462,983	$ 490,571	$ 1,167,376	$ 1,161,941

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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