Income Taxes (Details 3) (USD $) In Thousands, unless otherwise specified	Dec. 28, 2013	Dec. 29, 2012
Deferred Tax Assets:
Tax credit carryforwards	$ 159,839	$ 129,724
Reserves and accruals	49,450	50,960
Intangible assets	45,948	56,512
Capitalized research and development expense for income tax purposes	33,742	34,046
Operating loss carryforwards	27,205	24,429
Deferred income	25,420	27,237
Capital loss carryforwards	22,050	23,026
Share-based compensation costs	20,652	20,012
Depreciation and amortization	11,167	8,979
Investments	7,643	7,550
Other	4,911	4,185
Total deferred tax assets	408,027	386,660
Valuation allowance	(92,677)	(74,323)
Net deferred tax assets	315,350	312,337
Deferred Tax Liabilities:
Intangible assets	(66,775)	(70,086)
Undistributed foreign earnings	(17,301)	(13,113)
Other	(2,230)	(965)
Total deferred tax liabilities	(86,306)	(84,164)
Total net deferred tax assets	$ 229,044	$ 228,173