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Borrowing Arrangements (Schedule Additional Information About The Company's 1.50% Notes) (Details) (USD $)
In Thousands
Jul. 01, 2011
Oct. 01, 2010
Borrowing Arrangements    
Equity component of the convertible notes outstanding $ 6,061 $ 6,061
Principal amount of the convertible notes 26,677 26,677
Unamortized discount of the liability component 933 1,934
Net carrying amount of the liability component $ 25,744 $ 24,743