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Derivative Financial Instruments Derivative Instruments and Hedging Activities Disclosures (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Dec. 29, 2012
Dec. 31, 2011
Derivative Instruments and Hedging Activities Disclosure [Abstract]    
Net losses on foreign currency exposures $ 485 $ 2,197
Net realized and unrealized (gain) loss on forward contracts (excluding the underlying foreign currency exposure being hedged) $ (702) $ 721