Related Party Transactions - Summary of Significant Transactions between Company and The Coca-Cola Company (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 29, 2019	Dec. 30, 2018
Payments made by the Company to The Coca-Cola Company for:
Purchase of noncontrolling interest in Piedmont	$ 100,000	$ 0	$ 0
Payments made by The Coca-Cola Company to the Company for:
Cold drink equipment	0	0	3,789
Legacy Facilities Credit (excluding portion related to Mobile, Alabama facility)	0	0	1,320
The Coca-Cola Company
Payments made by the Company to The Coca-Cola Company for:
Concentrate, syrup, sweetener and other purchases	1,174,616	1,187,889	1,188,818
Customer marketing programs	132,874	144,949	145,019
Purchase of noncontrolling interest in Piedmont	100,000	0	0
Cold drink equipment parts	21,523	28,209	30,065
Brand investment programs	15,479	13,266	9,063
Payments made by The Coca-Cola Company to the Company for:
Marketing funding support payments	82,967	98,013	86,483
Fountain delivery and equipment repair fees	32,810	41,714	40,023
Presence marketing funding support on the Company’s behalf	8,434	8,002	8,311
Facilitating the distribution of certain brands and packages to other Coca-Cola bottlers	4,538	5,069	9,683
Cold drink equipment	0	0	3,789
Legacy Facilities Credit (excluding portion related to Mobile, Alabama facility)	$ 0	$ 0	$ 1,320