Revenue Recognition - Schedule of Disaggregation of Revenue According to Sales Mix for Principal Product Categories (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017
Disaggregation of Revenue [Line Items]
Net sales	$ 6,158,491	$ 6,158,654	$ 11,981,012	$ 11,947,079
Meats and seafood
Disaggregation of Revenue [Line Items]
Net sales	2,217,977	2,255,136	4,285,895	4,287,322
Dry grocery products
Disaggregation of Revenue [Line Items]
Net sales	1,068,936	1,069,624	2,111,195	2,126,009
Refrigerated and frozen grocery products
Disaggregation of Revenue [Line Items]
Net sales	972,816	942,658	1,916,958	1,874,652
Dairy
Disaggregation of Revenue [Line Items]
Net sales	650,104	636,038	1,259,610	1,242,814
Equipment, disposables and supplies
Disaggregation of Revenue [Line Items]
Net sales	587,750	571,757	1,127,721	1,112,036
Beverage products
Disaggregation of Revenue [Line Items]
Net sales	335,686	331,438	654,118	651,107
Produce
Disaggregation of Revenue [Line Items]
Net sales	$ 325,222	$ 352,003	$ 625,515	$ 653,139