Related Party Transactions - Additional Information (Detail)	6 Months Ended
	Jun. 28, 2015 USD ($) Entity	Jun. 29, 2014 USD ($)	Mar. 30, 2015 USD ($)	Dec. 29, 2014 USD ($)	Dec. 28, 2014 USD ($)	Mar. 31, 2014 USD ($)	Dec. 30, 2013 USD ($)
Related Party Transaction [Line Items]
Purchases from related party	$ 231,800,000	$ 211,200,000
Contingent consideration liability	94,068,000	13,000,000	$ 98,505,000	$ 46,850,000		$ 0	$ 0
Accounts receivable from CCBSS	$ 41,324,000	30,755,000			$ 22,741,000
Number of entities in which reporting entity is shareholder and purchases majority plastic bottles | Entity	2
Principal balance outstanding under capital lease	$ 59,200,000
Investor [Member]
Related Party Transaction [Line Items]
Percentage of interest held in outstanding common stock by The Coca-Cola Company	34.80%
Voting power of stock held by The Coca-Cola Company	5.00%
CCR [Member]
Related Party Transaction [Line Items]
Asset exchange agreement	Oct. 17, 2014
Acquisition Closing Date	May 01, 2015
CCR [Member] | Tum-E Yummies [Member]
Related Party Transaction [Line Items]
Sales to related parties	$ 11,100,000	11,800,000
CCR [Member] | Transportation [Member]
Related Party Transaction [Line Items]
Sales to related parties	6,700,000	900,000
CCR [Member] | Production Agreement [Member]
Related Party Transaction [Line Items]
Sales to related parties	17,300,000	29,500,000
Purchases from related party	94,100,000	27,700,000
CCR [Member] | Comprehensive Beverage Agreement [Member]
Related Party Transaction [Line Items]
Contingent consideration liability	94,100,000
Payments to related party	800,000
CCBSS [Member]
Related Party Transaction [Line Items]
Payments to CCBSS as administration fees for its services	200,000	200,000
Accounts receivable from CCBSS	4,900,000	5,100,000			4,500,000
SAC [Member]
Related Party Transaction [Line Items]
Sales to related parties	3,900,000	3,900,000
Purchases from related party	68,700,000	66,500,000
Management fees earned from SAC	900,000	1,000,000
Related party debt guarantee	23,900,000
Equity investment	4,100,000	4,100,000			4,100,000
Southeastern [Member]
Related Party Transaction [Line Items]
Purchases from related party	37,800,000	39,800,000
Related party debt guarantee	9,800,000
Equity investment	18,300,000	18,400,000			$ 18,400,000
SAC and Southeastern [Member]
Related Party Transaction [Line Items]
Collateral assets held against Southeastern or SAC guarantees	0
Impairment of investments	$ 0	0
HLP, SPC & Adjacent Sales Facility [Member]
Related Party Transaction [Line Items]
Lease expiration date	Dec. 31, 2020
Principal balance outstanding under capital lease	$ 18,800,000
Rental payments related to the lease	$ 1,900,000	1,900,000
Beacon [Member]
Related Party Transaction [Line Items]
Lease expiration date	Dec. 31, 2021
Principal balance outstanding under capital lease	$ 19,400,000
Rental payments related to the lease	$ 2,100,000	$ 2,100,000