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Hedging Transactions and Derivative Financial Instruments - Additional Information (Detail)
12 Months Ended
Dec. 29, 2018
USD ($)
Dec. 30, 2017
USD ($)
Dec. 29, 2018
GBP (£)
Dec. 30, 2017
GBP (£)
Derivative [Line Items]        
Fair value of derivative liabilities $ (10,900,000) $ (1,200,000)    
Derivative assets 0      
Coffee Futures        
Derivative [Line Items]        
Gain (loss) expected to be reclassified during next twelve months (10,900,000)      
Fair value of derivative liabilities $ (10,900,000) (1,200,000)    
Coffee Futures | S&D Acquisition        
Derivative [Line Items]        
Notional value of derivatives | £     £ 73,300,000 £ 48,100,000
Coffee Futures | S&D Acquisition | Minimum        
Derivative [Line Items]        
Future contract period 3 years      
Coffee Futures | S&D Acquisition | Maximum        
Derivative [Line Items]        
Future contract period 12 years      
Cost of Sales | Coffee Futures        
Derivative [Line Items]        
Derivative Instruments, Loss Reclassified from Accumulated OCI into Income, Effective Portion $ 6,200,000      
(Gain) loss reclassfied from AOCI into income   $ (1,300,000)