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Basis Of Presentation And Accounting Policies (Details) (USD $)
In Millions, unless otherwise specified
6 Months Ended
Mar. 30, 2013
M
Sep. 29, 2012
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Liquid investments, maximum maturity period, months 3  
Fair value of long-term debt $ 245.3 $ 256.8
Long-term Debt $ 250.0 $ 257.5