Derivative Instruments And Hedging Activities (Schedule Of Total Gross Notional Amounts, Presented By Currency) (Details) - Derivatives Designated As Hedging Instruments - USD ($) $ in Thousands	Jul. 29, 2017	Oct. 29, 2016
Derivative
Total gross notional amounts, presented by currency	$ 40,607	$ 176,236
United Kingdom, Pounds
Derivative
Total gross notional amounts, presented by currency	10,537	42,783
India, Rupees
Derivative
Total gross notional amounts, presented by currency	7,588	32,275
Euro Member Countries, Euro
Derivative
Total gross notional amounts, presented by currency	7,247	34,070
China, Yuan Renminbi
Derivative
Total gross notional amounts, presented by currency	4,637	19,805
Switzerland, Francs
Derivative
Total gross notional amounts, presented by currency	3,287	14,426
Singapore, Dollars
Derivative
Total gross notional amounts, presented by currency	3,253	15,057
Japan, Yen
Derivative
Total gross notional amounts, presented by currency	2,078	9,944
Australia, Dollars
Derivative
Total gross notional amounts, presented by currency	$ 1,980	$ 7,876