Net Income (Loss) Per Share - Computation of Basic Net Income (Loss) Per Share and Diluted Net Income (Loss) Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 27, 2020	Jun. 28, 2020	Mar. 29, 2020	Dec. 29, 2019	Sep. 29, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 29, 2019	Dec. 30, 2018
Numerator for basic and diluted net income (loss) per Common Stock and Class B Common Stock share:
Net income (loss) attributable to Coca-Cola Consolidated, Inc.	$ 66,378	$ 51,884	$ 39,569	$ 14,662	$ (10,170)	$ 13,006	$ 15,370	$ (6,831)	$ 172,493	$ 11,375	$ (19,930)
Less dividends:
Total undistributed earnings (losses) – basic									163,119	2,006	(29,283)
Total undistributed earnings (losses) – diluted									163,119	2,006	(29,283)
Common Stock
Less dividends:
Common Stock									7,141	7,141	7,141
Total undistributed earnings (losses) – basic									124,275	1,529	(22,365)
Total undistributed earnings (losses) – diluted									123,563	1,521	(22,365)
Numerator for basic net income (loss) per Common Stock share:
Numerator for basic net income (loss) per Common Stock share									131,416	8,670	(15,224)
Numerator for diluted net income (loss) per Common Stock share:
Numerator for diluted net income (loss) per Common Stock share									$ 172,493	$ 11,375	$ (19,930)
Denominator for basic net income (loss) per Common Stock and Class B Common Stock share:
Common Stock weighted average shares outstanding - basic (in shares)									7,141	7,141	7,141
Denominator for diluted net income (loss) per Common Stock and Class B Common Stock share:
Common Stock weighted average shares outstanding - diluted (in shares)									9,427	9,417	9,350
Basic net income (loss) per share:
Common Stock (in dollars per share)	$ 7.08	$ 5.53	$ 4.23	$ 1.56	$ (1.09)	$ 1.39	$ 1.64	$ (0.73)	$ 18.40	$ 1.21	$ (2.13)
Diluted net income (loss) per share:
Common Stock (in dollars per share)	7.05	5.51	4.19	1.55	(1.08)	1.38	1.64	(0.73)	$ 18.30	$ 1.21	$ (2.13)
Class B Common Stock
Less dividends:
Common Stock									$ 2,233	$ 2,228	$ 2,212
Total undistributed earnings (losses) – basic									38,844	477	(6,918)
Total undistributed earnings (losses) – diluted									39,556	485	(6,918)
Numerator for basic net income (loss) per Common Stock share:
Numerator for basic net income (loss) per Common Stock share									41,077	2,705	(4,706)
Numerator for diluted net income (loss) per Common Stock share:
Numerator for diluted net income (loss) per Common Stock share									$ 41,789	$ 2,713	$ (4,706)
Denominator for basic net income (loss) per Common Stock and Class B Common Stock share:
Common Stock weighted average shares outstanding - basic (in shares)									2,232	2,229	2,209
Denominator for diluted net income (loss) per Common Stock and Class B Common Stock share:
Common Stock weighted average shares outstanding - diluted (in shares)									2,286	2,276	2,209
Basic net income (loss) per share:
Common Stock (in dollars per share)	7.08	5.53	4.23	1.56	(1.09)	1.39	1.64	(0.73)	$ 18.40	$ 1.21	$ (2.13)
Diluted net income (loss) per share:
Common Stock (in dollars per share)	$ 7.04	$ 5.51	$ 4.18	$ 1.55	$ (1.09)	$ 1.38	$ 1.63	$ (0.73)	$ 18.28	$ 1.19	$ (2.13)