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Other Intangible Assets and Goodwill (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Sep. 30, 2012
Oct. 02, 2011
Oct. 03, 2010
Goodwill and Intangible Assets Disclosure [Abstract]      
Amortization expense for defninite-lived intangibles $ 4.5 $ 2.2 $ 1.2
Fiscal 2013 estimated future amortization expense of definite-lived intangibles 6    
Fiscal 2014 estimated future amortization expense of definite-lived intangibles 6    
Fiscal 2015 estimated future amortization expense of definite-lived intangibles 6    
Fiscal 2016 estimated future amortization expense of definite-lived intangibles 6    
Fiscal 2017 estimated future amortization expense of definite-lived intangibles 6    
Estimated amortization expenses of definite-lived intangibles after year five $ 26