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Variable Interest Entity - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
4 Months Ended
Apr. 20, 2013
Dec. 29, 2012
Variable Interest Entity [Line Items]    
Property, plant and equipment, net $ 720,291 $ 725,836
VIE
   
Variable Interest Entity [Line Items]    
Property, plant and equipment, net $ 9,300 $ 10,000
Maximum exposure related to distributor route notes receivable 10.00%