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Leased Property Under Capital Leases - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
Sep. 29, 2013
Dec. 30, 2012
Sep. 30, 2012
Leases [Abstract]      
Real estate leased under capital leases $ 49.6    
Real estate leased from related parties 33.4    
Company's outstanding obligations for capital leases $ 66.1 $ 69.6 $ 70.8