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Derivative Instruments (Details) (USD $)
In Millions
3 Months Ended 6 Months Ended
Jul. 03, 2011
Jul. 04, 2010
Jul. 03, 2011
Jul. 04, 2010
Dec. 31, 2010
Derivative Instruments (Textuals) [Abstract]          
Total notional value of outstanding forward contracts, not designated as hedges under hedge accounting $ 42.1   $ 42.1   $ 112.3
Gain (loss) related to other foreign currency hedges recognized net of interest income and other 0.3 2.2 2.1 (3.6)  
Total notional value of the Company's outstanding forward contracts, designated as foreign-currency cash-flow hedges $ 41.3   $ 41.3   $ 41.7
Cash Flow Hedging [Member]
         
Derivative Instruments (Textuals) [Abstract]          
Maturity period of forward contract     within 12 months    
Other Foreign Currency Hedges [Member]
         
Derivative Instruments (Textuals) [Abstract]          
Maturity period of forward contract     within 3 months