Piedmont Coca-Cola Bottling Partnership - Additional Information (Detail) - USD ($)	12 Months Ended
	Jan. 03, 2016	Dec. 28, 2014	Dec. 29, 2013
Minority Interest [Line Items]
Subsidiary's intercompany interest rate over the Company's average rate	0.50%
Amounts outstanding under financing agreement with subsidiary	$ 0	$ 0
Piedmont [Member]
Minority Interest [Line Items]
Minority interest	22.70%	22.70%	22.70%