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Leases - Summary of Rental Expense and Sublease Income (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Sep. 29, 2013
Sep. 30, 2012
Sep. 25, 2011
Leases [Abstract]      
Minimum rentals $ 31,765 $ 30,603 $ 28,850
Rentals based on sales 15,742 15,792 16,558
Sublease income $ 4,790 $ 4,608 $ 5,528