Derivative Instruments And Hedging Activities (Schedule Of Total Gross Notional Amounts, Presented By Currency) (Details) (USD $) In Thousands, unless otherwise specified	Aug. 02, 2014	Oct. 26, 2013
Derivatives Designated As Hedging Instruments
Derivative
Total gross notional amounts, presented by currency	$ 38,307	$ 98,614
Derivatives Designated As Hedging Instruments | Euro
Derivative
Total gross notional amounts, presented by currency	12,553	16,012
Derivatives Designated As Hedging Instruments | British pound
Derivative
Total gross notional amounts, presented by currency	8,665	25,053
Derivatives Designated As Hedging Instruments | Indian rupee
Derivative
Total gross notional amounts, presented by currency	5,778	17,444
Derivatives Designated As Hedging Instruments | Singapore dollar
Derivative
Total gross notional amounts, presented by currency	4,082	12,867
Derivatives Designated As Hedging Instruments | Japanese yen
Derivative
Total gross notional amounts, presented by currency	3,784	16,172
Derivatives Designated As Hedging Instruments | Swiss franc
Derivative
Total gross notional amounts, presented by currency	3,445	11,066
Derivatives Not Designated As Hedging Instruments
Derivative
Total gross notional amounts, presented by currency	0	25,478
Derivatives Not Designated As Hedging Instruments | Euro
Derivative
Total gross notional amounts, presented by currency	0	25,478
Derivatives Not Designated As Hedging Instruments | British pound
Derivative
Total gross notional amounts, presented by currency	0	0
Derivatives Not Designated As Hedging Instruments | Indian rupee
Derivative
Total gross notional amounts, presented by currency	0	0
Derivatives Not Designated As Hedging Instruments | Singapore dollar
Derivative
Total gross notional amounts, presented by currency	0	0
Derivatives Not Designated As Hedging Instruments | Japanese yen
Derivative
Total gross notional amounts, presented by currency	0	0
Derivatives Not Designated As Hedging Instruments | Swiss franc
Derivative
Total gross notional amounts, presented by currency	$ 0	$ 0