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Leased Property Under Capital Leases - Leased Property Under Capital Leases (Detail) (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Sep. 29, 2013
Dec. 30, 2012
Sep. 30, 2012
Sep. 29, 2013
Minimum [Member]
Sep. 29, 2013
Maximum [Member]
Capital Leased Assets [Line Items]          
Leased property under capital leases $ 94,629 $ 94,180 $ 94,180    
Less: Accumulated amortization 44,417 40,030 38,579    
Leased property under capital leases, net $ 50,212 $ 54,150 $ 55,601    
Leased property under capital leases, Estimated Useful Lives       3 years 20 years