Segments - Summary of Financial Information by Segment (Detail) - USD ($) $ in Thousands		3 Months Ended								12 Months Ended
		Dec. 30, 2018	Sep. 30, 2018	Jul. 01, 2018	Apr. 01, 2018	Dec. 31, 2017	Oct. 01, 2017	Jul. 02, 2017	Apr. 02, 2017	Dec. 30, 2018	Dec. 31, 2017	Jan. 01, 2017
Net sales:
Net sales		$ 1,136,571	$ 1,204,033	$ 1,220,003	$ 1,064,757	$ 1,117,630	$ 1,152,561	$ 1,159,804	$ 857,593	$ 4,625,364	$ 4,287,588	$ 3,130,145
Income from operations:
Income from operations		$ 12,816	$ 44,404	$ 19,679	$ (18,997)	$ 470	$ 37,472	$ 48,655	$ 14,950	57,902	101,547	131,199
Depreciation and amortization:
Depreciation and Amortization										187,256	168,841	116,623
Operating Segments [Member] | Nonalcoholic Beverages [Member]
Net sales:
Net sales										4,512,318	4,206,927	3,034,654
Income from operations:
Income from operations										45,519	90,143	126,570
Depreciation and amortization:
Depreciation and Amortization										177,448	160,524	109,716
Operating Segments [Member] | All Other [Member]
Net sales:
Net sales										358,625	301,801	234,732
Income from operations:
Income from operations										12,383	11,404	4,629
Depreciation and amortization:
Depreciation and Amortization										9,808	8,317	6,907
Eliminations [Member]
Net sales:
Net sales	[1]									$ (245,579)	$ (221,140)	$ (139,241)

[1] The entire net sales elimination for each period presented represents net sales from the All Other segment to the Nonalcoholic Beverages segment. Sales between these segments are recognized at either fair market value or cost depending on the nature of the transaction.