Commitments and Contingencies - Additional Information (Detail)	12 Months Ended
	Jan. 03, 2016 USD ($) Product	Dec. 28, 2014 USD ($)	Dec. 29, 2013 USD ($)
Loss Contingencies [Line Items]
Rental expense for noncancellable operating leases	$ 8,900,000	$ 7,600,000	$ 7,100,000
Letters of credit totaled	26,900,000
Long-term marketing contractual arrangements	$ 47,400,000
SAC [Member]
Loss Contingencies [Line Items]
Cases of finished product obligated to purchase on an annual basis | Product	17,500,000
Related party debt guarantee	$ 19,100,000
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	$ 45,000,000
Debt of guarantee	19,000,000
Revenues of guarantee	$ 195,000,000
Southeastern [Member]
Loss Contingencies [Line Items]
Purchase requirements of plastic bottles	80.00%
Related party debt guarantee	$ 11,500,000
Maximum aggregate exposure of debt guarantees	25,300,000
Maximum aggregate exposure of debt guarantees and equity investment	$ 43,600,000
Number of years reporting entity purchasing plastic bottles	More than ten years
Assets of guarantee	$ 296,000,000
Debt of guarantee	137,000,000
Revenues of guarantee	599,000,000
SAC and Southeastern [Member]
Loss Contingencies [Line Items]
Related party debt guarantee	$ 30,600,000	$ 30,900,000
Guaranteed portion of SAC's and Southeastern's debt, collateral held	The Company holds no assets as collateral against the SAC or Southeastern guarantees