Related Party Transactions - Summary of Significant Transactions between Company and The Coca-Cola Company (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2018	Jul. 02, 2017	Jul. 01, 2018	Jul. 02, 2017
Related Party Transaction [Line Items]
Glacéau distribution agreement consideration				$ 15,598
Cold drink equipment			$ 3,789	8,400
The Coca-Cola Company [Member]
Related Party Transaction [Line Items]
Concentrate, syrup, sweetener and other purchases	$ 328,689	$ 262,490	571,157	489,216
Customer marketing programs	41,475	16,446	76,057	74,240
Cold drink equipment parts	8,089	6,466	14,230	12,087
Glacéau distribution agreement consideration				15,598
Proceeds from Territory Conversion Fee				87,066
Marketing funding support payments	22,656	23,325	42,693	40,161
Fountain delivery and equipment repair fees	10,353	9,002	19,700	16,852
Presence marketing funding support on the Company’s behalf	4,614	481	5,095	1,137
Facilitating the distribution of certain brands and packages to other Coca-Cola bottlers	4,256	3,015	8,124	5,108
Cold drink equipment	$ 3,789	$ 8,400	$ 3,789	$ 8,400