Shareholders' Equity (Details) (USD $) In Thousands, except Share data, unless otherwise specified	1 Months Ended		3 Months Ended		9 Months Ended		1 Months Ended	3 Months Ended				9 Months Ended				3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended
	May 31, 2014	Jul. 31, 2013	Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014	Sep. 28, 2013	Oct. 24, 2014 Treasury Stock [Member]	Sep. 27, 2014 Other comprehensive income before reclassifications [Member]		Sep. 28, 2013 Other comprehensive income before reclassifications [Member]		Sep. 27, 2014 Other comprehensive income before reclassifications [Member]		Sep. 28, 2013 Other comprehensive income before reclassifications [Member]		Sep. 27, 2014 Other comprehensive income before reclassifications [Member] Intra-entity foreign currency transactions [Member]	Sep. 28, 2013 Other comprehensive income before reclassifications [Member] Intra-entity foreign currency transactions [Member]	Sep. 27, 2014 Other comprehensive income before reclassifications [Member] Intra-entity foreign currency transactions [Member]	Sep. 28, 2013 Other comprehensive income before reclassifications [Member] Intra-entity foreign currency transactions [Member]	Sep. 27, 2014 Reclassification out of Accumulated Other Comprehensive Income [Member]	Sep. 28, 2013 Reclassification out of Accumulated Other Comprehensive Income [Member]	Sep. 27, 2014 Reclassification out of Accumulated Other Comprehensive Income [Member]	Sep. 28, 2013 Reclassification out of Accumulated Other Comprehensive Income [Member]
Changes In Components Of OCI [Line Items]
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment			$ (149,348)	$ 80,812	$ (174,077)	$ 28,953		$ (149,533)	[1]	$ 80,764	[1]	$ (174,195)	[1]	$ 29,385	[1]	$ 29,586	$ (6,365)	$ 49,056	$ (14,967)	$ 185	$ 48	$ 118	$ (432)
Other Comprehensive Income (Loss) Unrealized gain (loss) on investment securities, net			(19,264)	864	(13,534)	(533)		(995)		864		4,735		(533)						(18,269)	0	(18,269)	0
Other Comprehensive Income (Loss), Unrealized Gain on Derivatives Arising During Period, Net			101	96	300	1,977		0		0		0		1,923						101	96	300	54
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenef								36		27		109		77
Other Comprehensive Income (loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (loss) Recognized in Net Periodic Benefit Cost, After Tax																				515	717	1,548	2,229
Net change in accumulated other comprehensive income (loss)			(167,960)	82,516	(185,654)	32,703
Stock Repurchase Program, Authorized Amount	200,000	200,000
Treasury Stock, Shares, Acquired			852,286		4,037,375		1,140,967
Treasury Stock, Value, Acquired, Cost Method			$ 49,988		$ 223,560		$ 55,383

[1] Includes intra-entity foreign currency transactions that are of a long-term investment nature of $29,586 and $49,056 for the third quarter and first nine months of 2014 and $(6,365) and $(14,967) for the third quarter and first nine months of 2013, respectively.