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Payment of contingent consideration of acquisitions.

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Related party, service fees.

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Percentage of voting power of the entity's combined classes of stock voting as a single class held by a related party.

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Related Party Transactions - Additional Information (Detail) $ in Thousands	3 Months Ended				12 Months Ended
	Dec. 30, 2018 USD ($)	Sep. 30, 2018 USD ($)	Jul. 02, 2017 USD ($)	Apr. 02, 2017 USD ($)	Dec. 30, 2018 USD ($)	Dec. 31, 2017 USD ($)	Jan. 01, 2017 USD ($)
Related Party Transaction [Line Items]
Payment of acquisition related contingent consideration					$ 24,683	$ 16,738	$ 13,550
Payment to The Coca-Cola Company						15,598
Territory conversion fee equivalent to EBITDA							0.5
Amortization period as reduction to cost of sales					40 years
Accounts receivable from The Coca-Cola Company	$ 44,915				$ 44,915	65,996
Principal balance outstanding under capital lease	$ 35,200				$ 35,200	43,500
Legacy Facilities Credit [Member]
Related Party Transaction [Line Items]
Amount of compensation paid		$ 44,300
Glaceau Distribution Termination Agreement [Member]
Related Party Transaction [Line Items]
Payment to The Coca-Cola Company				$ 15,600
The Coca-Cola Company [Member]
Related Party Transaction [Line Items]
Percentage of interest held in outstanding common stock by The Coca-Cola Company	27.00%				27.00%
Voting power of stock held by related party	5.00%				5.00%
Payment to The Coca-Cola Company						15,598
Harrison Family [Member]
Related Party Transaction [Line Items]
Voting power of stock held by related party	86.00%				86.00%
CCR [Member]
Related Party Transaction [Line Items]
Fee received pursuant to territory conversion agreement			$ 91,500
CCR [Member] \| Legacy Facilities Credit [Member]
Related Party Transaction [Line Items]
Amortization period as reduction to cost of sales					40 years
CCR [Member] \| Mobile, Alabama Facility [Member]
Related Party Transaction [Line Items]
Fee recognized from related party						12,400
CCR [Member] \| Comprehensive Beverage Agreement [Member]
Related Party Transaction [Line Items]
Payment of acquisition related contingent consideration					$ 24,700	16,700	$ 13,500
SAC [Member]
Related Party Transaction [Line Items]
Equity investments	$ 8,200				8,200
Proceeds from management fees received from SAC					9,000	9,100	9,000
Southeastern [Member]
Related Party Transaction [Line Items]
Equity investments						23,600
Southeastern [Member] \| Other Expense, Net [Member]
Related Party Transaction [Line Items]
Increase in investment						6,000
CCBSS [Member]
Related Party Transaction [Line Items]
Accounts receivable from The Coca-Cola Company	10,400				10,400	11,200
Administrative fees due to CCBSS					2,800	2,300	1,300
CONA [Member]
Related Party Transaction [Line Items]
Equity investments	8,000				8,000
Service fees					$ 21,500	12,600
CONA [Member] \| Selling Delivery and Administrative Expenses [Member] \| Out of Period Adjustment [Member]
Related Party Transaction [Line Items]
Out of period adjustment to correct understated expense	6,900
Beacon Investment Corporation [Member]
Related Party Transaction [Line Items]
Lease expiration date					Dec. 31, 2021
Principal balance outstanding under capital lease	9,900				$ 9,900	12,800
HLP, SPC & Adjacent Sales Facility [Member]
Related Party Transaction [Line Items]
Lease expiration date					Dec. 31, 2020
Principal balance outstanding under capital lease	$ 8,100				$ 8,100	11,600
Rental payments related to the lease					$ 4,200	$ 4,100	$ 4,000