Commitments And Contingencies (Schedule Of Accrued Liability For Estimated Future Warranty Costs) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jan. 25, 2014	Jan. 26, 2013
Product Warranty Activity
Beginning balance	$ 8,632	$ 14,453
Liabilities accrued for warranties issued during the period	866	970
Warranty claims paid and used during the period	(1,761)	(1,995)
Changes in liability for pre-existing warranties during the period	(455)	(1,101)
Ending balance	$ 7,282	$ 12,327