Multipemployer Pension and Postretirement Plans Multiemployer Pension Plans Trusts Funds Contributions (Details)	12 Months Ended
	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013
Hagerstown Motor Carriers And Teamsters Pension Fund [Member]
Multiemployer Plans [Line Items]
Period contributions above 5%	true
Plan Year End Date For Contributions To Plan Exceeding Five Percent Of Total Contributions	6/20/2014	6/30/2013	6/30/2012
Local 734 Pension Plan [Member]
Multiemployer Plans [Line Items]
Period contributions above 5%	true
Plan Year End Date For Contributions To Plan Exceeding Five Percent Of Total Contributions	4/30/2015	4/30/2014	4/30/2013
Twin Cities Bakery Drivers Pension Plan [Member]
Multiemployer Plans [Line Items]
Period contributions above 5%	true
Plan Year End Date For Contributions To Plan Exceeding Five Percent Of Total Contributions	12/31/2014	12/31/2013	12/31/2012
Upstate New York Bakery Drivers And Industry Pension Fund [Member]
Multiemployer Plans [Line Items]
Period contributions above 5%	true
Plan Year End Date For Contributions To Plan Exceeding Five Percent Of Total Contributions	6/30/2015	6/30/2014	6/30/2013