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Fair Value Measurements (Financial Assets And Liabilities Measured At Fair Value On Recurring Basis) (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 30, 2013
Sep. 30, 2012
Financial assets:    
Financial assets, fair value $ 58,855 $ 231,724
Level 1
   
Financial assets:    
Cash equivalents—Level 1 (1) 58,855 [1] 231,488 [1]
Level 2
   
Financial assets:    
Forward contracts—Level 2 0 236
Derivative Liabilities $ 289 $ 0
[1] Money market funds and time deposits.