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Derivative Financial Instruments (Details) (Foreign Exchange Forward [Member], Not Designated as Hedging Instrument [Member])
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 29, 2012
USD ($)
Sep. 29, 2012
JPY (¥)
Sep. 29, 2012
Other Income (Expense), Net [Member]
USD ($)
Sep. 24, 2011
Other Income (Expense), Net [Member]
USD ($)
Sep. 29, 2012
Other Income (Expense), Net [Member]
USD ($)
Sep. 24, 2011
Other Income (Expense), Net [Member]
USD ($)
Sep. 29, 2012
Taiwan, New Dollars
USD ($)
Sep. 29, 2012
Taiwan, New Dollars
TWD
Sep. 29, 2012
Korean Won [Member]
USD ($)
Sep. 29, 2012
Korean Won [Member]
KRW
Derivatives, Fair Value [Line Items]                    
Notional Amount of Foreign Currency Derivative Sale Contracts $ 1,650 ¥ 129,141         $ 2,054 (59,891) $ 242 (268,604)
Total USD notional amount of outstanding foreign exchange contracts (646)                  
Derivative Instruments, Gain (Loss) Recognized in Income, Net [Abstract]                    
Foreign exchange forward contracts     $ (171) $ (352) $ (170) $ (641)