Reporting Segment Information - Schedule of Segment Reporting Information, by Operating Segment (Detail) - USD ($) $ in Thousands	4 Months Ended
	Apr. 22, 2017	Apr. 23, 2016	Dec. 31, 2016
Segment Reporting Information [Line Items]
Net sales	$ 2,402,504	$ 2,278,770
Merger/acquisition and integration	4,017	897
Depreciation and amortization	25,422	23,369
Operating earnings (loss)	29,644	21,660
Capital expenditures	19,476	18,090
Total Assets	2,180,615		$ 1,930,336
Discontinued Operations [Member]
Segment Reporting Information [Line Items]
Total Assets	3,248		3,249
Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales	2,402,504	2,278,770
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Net sales	(280,926)	(277,003)
Food Distribution [Member]
Segment Reporting Information [Line Items]
Merger/acquisition and integration	3,847	468
Depreciation and amortization	8,944	6,470
Operating earnings (loss)	25,315	25,856
Capital expenditures	5,754	5,522
Total Assets	1,056,312		776,725
Food Distribution [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales	1,162,950	991,137
Food Distribution [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Net sales	(280,926)	(277,003)
Military [Member]
Segment Reporting Information [Line Items]
Merger/acquisition and integration		1
Depreciation and amortization	3,439	3,475
Operating earnings (loss)	890	3,433
Capital expenditures	2,451	2,335
Total Assets	396,921		395,737
Military [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales	643,313	674,523
Retail [Member]
Segment Reporting Information [Line Items]
Merger/acquisition and integration	170	428
Depreciation and amortization	13,039	13,424
Operating earnings (loss)	3,439	(7,629)
Capital expenditures	11,271	10,233
Total Assets	724,134		$ 754,625
Retail [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales	$ 596,241	$ 613,110