Sales by Product Category in Each Reportable Segment (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 08, 2016	Oct. 10, 2015	Oct. 08, 2016	Oct. 10, 2015
Segment Reporting Information [Line Items]
Sales	$ 918,791	$ 885,302	$ 3,058,168	$ 2,920,142
DSD Segment
Segment Reporting Information [Line Items]
Sales	768,920	746,267	2,553,690	2,464,399
Warehouse Segment
Segment Reporting Information [Line Items]
Sales	149,871	139,035	504,478	455,743
Branded Retail
Segment Reporting Information [Line Items]
Sales	534,475	500,933	1,783,016	1,656,071
Branded Retail | DSD Segment
Segment Reporting Information [Line Items]
Sales	496,403	471,506	1,646,602	1,555,824
Branded Retail | Warehouse Segment
Segment Reporting Information [Line Items]
Sales	38,072	29,427	136,414	100,247
Store Branded Retail
Segment Reporting Information [Line Items]
Sales	136,967	136,264	453,975	447,587
Store Branded Retail | DSD Segment
Segment Reporting Information [Line Items]
Sales	110,484	108,736	359,944	358,523
Store Branded Retail | Warehouse Segment
Segment Reporting Information [Line Items]
Sales	26,483	27,528	94,031	89,064
Non-Retail and Other
Segment Reporting Information [Line Items]
Sales	247,349	248,105	821,177	816,484
Non-Retail and Other | DSD Segment
Segment Reporting Information [Line Items]
Sales	162,033	166,025	547,144	550,052
Non-Retail and Other | Warehouse Segment
Segment Reporting Information [Line Items]
Sales	$ 85,316	$ 82,080	$ 274,033	$ 266,432