Income Taxes Income Taxes (Schedule of Deferred Tax Assets and Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Oct. 26, 2013	Oct. 27, 2012
Deferred Tax Assets, Gross
Net operating loss carry forwards	$ 10,525	$ 63,750
Stock-based compensation expense	17,664	22,582
Tax credit carry forwards	141,975	145,688
Reserves and accruals	63,765	94,755
Capitalized research and development expenditures	621	3,232
Net unrealized losses on investments	396	468
Gross deferred tax assets	234,946	330,475
Valuation allowance	(81,116)	(22,269)
Total deferred tax assets	153,830	308,206
Deferred Tax Liabilities
Acquired intangibles and goodwill	(22,307)	(50,266)
Fixed assets	(29,878)	(28,110)
Other	(2,042)	(2,116)
Total deferred tax liabilities	(54,227)	(80,492)
Deferred Tax Assets (Liabilities), Net
Total net deferred tax assets	$ 99,603	$ 227,714