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Derivative Instruments and Hedging Activities (Details) (USD $)
In Millions
Sep. 30, 2011
Jul. 01, 2011
Derivative Instruments and Hedging Activities (Textuals)  
Notional amount of foreign currency forward contracts$ 79.0$ 83.9
Notional amount classified as cash flow hedges60.653.7
Notional amount classified as fair value hedges$ 18.4$ 30.2
Contract expiration dates lower rangeLess than 1 month 
Contract expiration dates upper range30 months 
Weighted average contract life6 months