Commitments And Contingencies (Schedule Of Accrued Liability For Estimated Future Warranty Costs) (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Apr. 28, 2012	Apr. 30, 2011
Product Warranty Activity
Beginning balance	$ 11,298	$ 5,980
Liabilities accrued for warranties issued during the period	4,640	3,502
Warranty claims paid and used during the period	(536)	(618)
Changes in liability for pre-existing warranties during the period	(1,040)	(991)
Ending balance	$ 14,362	$ 7,873