Income Taxes (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended
	Apr. 27, 2013	Apr. 28, 2012	Apr. 27, 2013	Apr. 28, 2012
Current Income Tax Expense (Benefit), Continuing Operations
Income tax expense (benefit)	$ (171,000)	$ (708,000)	$ 88,073,000	$ (3,915,000)
Reserve releases resulting from the settlement of an IRS audit	10,600,000
Change in California deferred tax asset valuation allowance as a result of the passage of Proposition 39			78,200,000
Reinstatement of federal research and development tax credit			5,700,000
Income Tax Contingency
Amount of unrecognized tax benefits that could affect the effect tax rate	72,900,000		72,900,000
Upper range of estimated potential decreases in underlying uncertain tax positions	3,900,000		3,900,000
Lower range of estimated potential decreases in underlying uncertain tax positions	$ 0		$ 0