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Derivative Instruments Located on Consolidated Balance Sheet (Detail) (USD $)
In Thousands, unless otherwise specified
Oct. 05, 2013
Dec. 29, 2012
Derivatives, Fair Value [Line Items]    
Derivative Assets $ 58 $ 9
Derivative Liabilities 4,380 4,060
Interest Rate Contracts | Other Current Liabilities
   
Derivatives, Fair Value [Line Items]    
Derivative Liabilities   867
Commodity Contract | Other Current Liabilities
   
Derivatives, Fair Value [Line Items]    
Derivative Liabilities 3,463 3,047
Commodity Contract | Other LongTerm Liabilities
   
Derivatives, Fair Value [Line Items]    
Derivative Liabilities 917 146
Commodity Contract | Other Long Term Assets
   
Derivatives, Fair Value [Line Items]    
Derivative Assets $ 58 $ 9