Derivatives and Hedging Activities (Details 2) (Foreign exchange contracts [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Apr. 01, 2012
Foreign exchange contracts [Member]
Effective portion of designated cash flow derivative contracts
Amount of gain (loss) recognized in AOCI	$ (30,630)	$ (69,061)
Amount of gain (loss) reclassified from AOCI to the Statements of Operations	$ (1,441)	$ 6,314