Derivative Instruments and Hedging - Derivatives Income Statement Location (Details) (Foreign Exchange Contract, Interest and Other Income (Expense), Net, Fair Value Hedging, USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 29, 2014	Mar. 30, 2013
Foreign Exchange Contract | Interest and Other Income (Expense), Net | Fair Value Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivatives	$ (4)	$ 13