Retirement Plans - Contributions to Multiemployer Pension Plans (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
Multiemployer Plans [Line Items]
USF Contributions	$ 34,140	$ 32,636	$ 33,630
Western Conference of Teamsters Pension Trust Fund [Member]
Multiemployer Plans [Line Items]
USF Contributions	10,780	$ 10,104	$ 10,227
USF Contributions Exceed 5% of Total Plan contributions		false	false
Minneapolis Food Distributing Industry Pension Plan [Member]
Multiemployer Plans [Line Items]
USF Contributions	5,399	$ 5,162	$ 5,200
USF Contributions Exceed 5% of Total Plan contributions		true	true
Teamster Pension Trust Fund of Philadelphia and Vicinity [Member]
Multiemployer Plans [Line Items]
USF Contributions	3,917	$ 3,442	$ 3,461
USF Contributions Exceed 5% of Total Plan contributions		false	false
Local 703 I.B. of T. Grocery and Food Employees Pension Plan [Member]
Multiemployer Plans [Line Items]
USF Contributions	1,482	$ 1,258	$ 1,366
USF Contributions Exceed 5% of Total Plan contributions		true	true
United Teamsters Trust Fund A [Member]
Multiemployer Plans [Line Items]
USF Contributions	1,741	$ 1,668	$ 1,554
USF Contributions Exceed 5% of Total Plan contributions		true	true
Warehouse Employees Local 169 and Employers Joint Pension Fund [Member]
Multiemployer Plans [Line Items]
USF Contributions	846	$ 900	$ 897
USF Contributions Exceed 5% of Total Plan contributions		true	true
Local 705 I.B. of T. Pension Trust Fund [Member]
Multiemployer Plans [Line Items]
USF Contributions	3,122	$ 2,923	$ 2,729
USF Contributions Exceed 5% of Total Plan contributions		false	false
Other Funds [Member]
Multiemployer Plans [Line Items]
USF Contributions	$ 6,853	$ 7,179	$ 8,196
USF Contributions Exceed 5% of Total Plan contributions		false	false