Derivative Instruments And Hedging Activities (Schedule Of Total Gross Notional Amounts, Presented By Currency) (Details) (USD $) In Thousands, unless otherwise specified	Jan. 25, 2014	Oct. 26, 2013
Derivatives Designated As Hedging Instruments
Derivative
Total gross notional amounts, presented by currency	$ 89,079	$ 98,614
Derivatives Designated As Hedging Instruments | Euro
Derivative
Total gross notional amounts, presented by currency	30,023	16,012
Derivatives Designated As Hedging Instruments | British pound
Derivative
Total gross notional amounts, presented by currency	19,558	25,053
Derivatives Designated As Hedging Instruments | Indian rupee
Derivative
Total gross notional amounts, presented by currency	12,431	17,444
Derivatives Designated As Hedging Instruments | Singapore dollar
Derivative
Total gross notional amounts, presented by currency	9,387	12,867
Derivatives Designated As Hedging Instruments | Japanese yen
Derivative
Total gross notional amounts, presented by currency	9,234	16,172
Derivatives Designated As Hedging Instruments | Swiss franc
Derivative
Total gross notional amounts, presented by currency	8,446	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