Commitments and Contingencies - Additional Information (Detail) (USD $)	9 Months Ended
	Sep. 28, 2014	Dec. 29, 2013	Sep. 29, 2013
Loss Contingencies [Line Items]
Letters of credit totaled	$ 23,400,000
Contractual arrangements	40,000,000
Marketing contractual arrangements, latest expiration year	2022
Southeastern [Member]
Loss Contingencies [Line Items]
Purchase requirements of plastic bottles	80.00%
Maximum aggregate exposure of debt guarantees	25,300,000
Maximum aggregate exposure of debt guarantees and equity investment	43,700,000
Number of years reporting entity purchasing plastic bottles	More than ten years
Assets of guarantee	321,000,000
Debt of guarantee	134,000,000
Revenues of guarantee	502,000,000
SAC [Member]
Loss Contingencies [Line Items]
Cases of finished product obligated to purchase on an annual basis	17,500,000
Maximum aggregate exposure of debt guarantees	23,900,000
Maximum aggregate exposure of debt guarantees and equity investment	28,000,000
Number of years reporting entity purchasing finished products	More than ten years
Assets of guarantee	41,000,000
Debt of guarantee	21,000,000
Revenues of guarantee	138,000,000
SAC and Southeastern [Member]
Loss Contingencies [Line Items]
Related party debt guarantee	32,700,000	29,300,000	33,500,000
Amount of collateral held against guarantees issued	$ 0
Guarantee, latest expiration year	2023