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		6 Months Ended
	Jul. 01, 2018	Jul. 02, 2017	Jul. 01, 2018	Jul. 02, 2017
Numerator for basic and diluted net income (loss) per Common Stock and Class B Common Stock share:
Net income (loss) attributable to Coca-Cola Bottling Co. Consolidated	$ (3,933)	$ 6,348	$ (18,118)	$ 1,297
Less dividends:
Dividends on Common Stock	1,785	1,786	3,570	3,571
Total undistributed earnings (losses) – basic	(6,271)	4,014	(22,789)	(3,365)
Total undistributed earnings (losses) – diluted	(6,271)	4,014	(22,789)	(3,365)
Numerator for basic net income (loss) per Common Stock share:
Numerator for basic net income (loss) per Common Stock share	(3,002)	4,857	(13,841)	994
Numerator for diluted net income (loss) per Common Stock share:
Numerator for diluted net income (loss) per Common Stock share	$ (3,933)	$ 6,348	$ (18,118)	$ 1,297
Denominator for diluted net income (loss) per Common share:
Weighted average number of Common Stock shares outstanding	7,141	7,141	7,141	7,141
Denominator for diluted net income (loss) per Common share:
Weighted average number of Common Stock shares outstanding – assuming dilution	9,354	9,374	9,347	9,366
Basic net income (loss) per share:
Common Stock	$ (0.42)	$ 0.68	$ (1.94)	$ 0.14
Diluted net income (loss) per share:
Common Stock	$ (0.42)	$ 0.68	$ (1.94)	$ 0.14
Common Stock [Member]
Less dividends:
Total undistributed earnings (losses) – basic	$ (4,787)	$ 3,071	$ (17,411)	$ (2,577)
Total undistributed earnings (losses) – diluted	(4,787)	3,058	(17,411)	(2,566)
Class B Common Stock [Member]
Less dividends:
Dividends on Common Stock	553	548	1,101	1,091
Total undistributed earnings (losses) – basic	(1,484)	943	(5,378)	(788)
Total undistributed earnings (losses) – diluted	(1,484)	956	(5,378)	(799)
Numerator for basic net income (loss) per Common Stock share:
Numerator for basic net income (loss) per Common Stock share	(931)	1,491	(4,277)	303
Numerator for diluted net income (loss) per Common Stock share:
Numerator for diluted net income (loss) per Common Stock share	$ (931)	$ 1,504	$ (4,277)	$ 292
Denominator for diluted net income (loss) per Common share:
Weighted average number of Common Stock shares outstanding	2,213	2,193	2,206	2,185
Denominator for diluted net income (loss) per Common share:
Weighted average number of Common Stock shares outstanding – assuming dilution	2,213	2,233	2,206	2,225
Basic net income (loss) per share:
Common Stock	$ (0.42)	$ 0.68	$ (1.94)	$ 0.14
Diluted net income (loss) per share:
Common Stock	$ (0.42)	$ 0.67	$ (1.94)	$ 0.13