Property and Equipment - Summary of Property and Equipment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	$ 3,727,007	$ 3,492,062
Less accumulated depreciation and amortization	(1,925,792)	(1,724,451)
Property and equipment—net	$ 1,801,215	1,767,611
Minimum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Useful life	3 years
Maximum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Useful life	40 years
Land [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	$ 312,909	303,208
Building and Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	$ 1,189,634	1,144,041
Building and Building Improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Useful life	10 years
Building and Building Improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Useful life	40 years
Transportation Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	$ 949,236	835,089
Transportation Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Useful life	5 years
Transportation Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Useful life	10 years
Warehouse Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	$ 384,361	343,315
Warehouse Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Useful life	5 years
Warehouse Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Useful life	12 years
Office Equipment, Furniture and Software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	$ 803,389	772,334
Office Equipment, Furniture and Software [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Useful life	3 years
Office Equipment, Furniture and Software [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Useful life	7 years
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	$ 87,478	$ 94,075