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Borrowings (Schedule Of Short-Term Credit Agreement) (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2011
Oct. 01, 2010
Maximum [Member] | Revolving Credit Facility [Member]
  
Range of Interest Rates1.57% 
Maximum [Member] | Bilateral Agreements [Member]
  
Range of Interest Rates2.15% 
Maximum [Member] | Other Loan Agreements [Member]
  
Range of Interest Rates6.00% 
Minimum [Member] | Revolving Credit Facility [Member]
  
Range of Interest Rates0.96% 
Minimum [Member] | Bilateral Agreements [Member]
  
Range of Interest Rates1.00% 
Revolving Credit Facility [Member]
  
Principal Balance Outstanding$ 171,788 
Bilateral Agreements [Member]
  
Principal Balance Outstanding392,05979,157
Range of Interest Rates 1.42%
Other Loan Agreements [Member]
  
Principal Balance Outstanding$ 2,184$ 242
Range of Interest Rates 4.50%