Sales by Product Category in Each Reportable Segment (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 10, 2015	Oct. 04, 2014	Oct. 10, 2015	Oct. 04, 2014
Segment Reporting Information [Line Items]
Sales	$ 885,302	$ 844,932	$ 2,920,142	$ 2,871,640
DSD Segment
Segment Reporting Information [Line Items]
Sales	746,267	713,846	2,464,399	2,413,332
Warehouse Segment
Segment Reporting Information [Line Items]
Sales	139,035	131,086	455,743	458,308
Branded Retail
Segment Reporting Information [Line Items]
Sales	500,750	477,317	1,655,507	1,610,870
Branded Retail | DSD Segment
Segment Reporting Information [Line Items]
Sales	471,353	448,205	1,555,354	1,510,823
Branded Retail | Warehouse Segment
Segment Reporting Information [Line Items]
Sales	29,397	29,112	100,153	100,047
Store Branded Retail
Segment Reporting Information [Line Items]
Sales	137,717	135,937	453,906	473,275
Store Branded Retail | DSD Segment
Segment Reporting Information [Line Items]
Sales	108,733	108,210	358,404	376,195
Store Branded Retail | Warehouse Segment
Segment Reporting Information [Line Items]
Sales	28,984	27,727	95,502	97,080
Non-Retail and Other
Segment Reporting Information [Line Items]
Sales	246,835	231,678	810,729	787,495
Non-Retail and Other | DSD Segment
Segment Reporting Information [Line Items]
Sales	166,181	157,431	550,641	526,314
Non-Retail and Other | Warehouse Segment
Segment Reporting Information [Line Items]
Sales	$ 80,654	$ 74,247	$ 260,088	$ 261,181