Annual report pursuant to Section 13 and 15(d)

Property Plant and Equipment - Additional Information (Detail)

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Property Plant and Equipment - Additional Information (Detail) (USD $)
Dec. 29, 2012
Dec. 31, 2011
Property, Plant and Equipment [Line Items]    
Assets under capital lease $ 42,700,000 $ 43,600,000
Accumulated amortization of assets under capital lease 18,900,000 16,200,000
Property, plant and equipment,at cost 1,983,417,000 1,830,039,000
Accumulated depreciation 1,155,199,000 1,092,588,000
Mortgages
   
Property, Plant and Equipment [Line Items]    
Property, plant and equipment,at cost 21,200,000  
Accumulated depreciation 2,400,000 2,000,000
Asset under Construction
   
Property, Plant and Equipment [Line Items]    
Property, plant and equipment,at cost   $ 22,600,000