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Variable Interest Entity - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Oct. 06, 2012
Dec. 31, 2011
Variable Interest Entity [Line Items]    
Property, plant and equipment, net $ 728,912 $ 685,487
VIE
   
Variable Interest Entity [Line Items]    
Property, plant and equipment, net $ 10,700 $ 7,900
Maximum exposure related to distributor route notes receivable 10.00%