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Commitments and Contingencies - Additional Information (Detail)
9 Months Ended 12 Months Ended
Oct. 01, 2017
USD ($)
Product
Oct. 02, 2016
USD ($)
Product
Jan. 01, 2017
USD ($)
Loss Contingencies [Line Items]      
Letters of credit totaled $ 35,600,000   $ 29,700,000
Long-term marketing contractual arrangements 124,400,000    
SAC [Member]      
Loss Contingencies [Line Items]      
Proceeds from management fees received from SAC $ 6,900,000 $ 7,000,000  
Cases of finished product obligated to purchase on an annual basis | Product 17,500,000    
Purchased number of cases finished product from SAC | Product 22,600,000 23,200,000  
Southeastern [Member]      
Loss Contingencies [Line Items]      
Purchase requirements of plastic bottles 80.00%    
SAC and Southeastern [Member]      
Loss Contingencies [Line Items]      
Guaranteed portion of SAC's and Southeastern's debt, collateral held The Company holds no assets as collateral against the SAC or Southeastern guarantees    
Impairment of investments $ 0   $ 0