Fair Value Measurement, Financial Instruments And Risk Management (Amounts Affecting Consolidated Statement Of Operations) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2014	Jun. 30, 2013	Jun. 29, 2014	Jun. 30, 2013
Derivatives designated as cash flow hedges: | Foreign currency revenue forecast contracts
Fair Value Disclosures [Line Items]
Amount of Gain (Loss) Recognized in Other Comprehensive Income on Derivatives	$ 0	$ (1)	$ 0	$ 0
Amount of Forward Points Recognized in Other Gain (Loss), net	0	0	0	11
Derivatives designated as cash flow hedges: | Cost of sales | Foreign currency revenue forecast contracts
Fair Value Disclosures [Line Items]
Amount of Gain (Loss) Reclassified From Accumulated Other Comprehensive Income into Income	0	5	0	(153)
Derivatives not designated as hedging instruments: | Other gain (loss), net | Foreign exchange forwards and options
Fair Value Disclosures [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivatives	$ (36)	$ 52	$ (66)	$ 265