Derivative Instruments And Hedging Activities (Schedule Of Total Gross Notional Amounts, Presented By Currency) (Details) (USD $) In Thousands, unless otherwise specified	Oct. 26, 2013	Oct. 27, 2012
Derivatives Designated As Hedging Instruments
Derivative
Total gross notional amounts, presented by currency	$ 98,614	$ 105,171
Derivatives Designated As Hedging Instruments | Euro
Derivative
Total gross notional amounts, presented by currency	16,012	43,357
Derivatives Designated As Hedging Instruments | British Pound
Derivative
Total gross notional amounts, presented by currency	25,053	20,499
Derivatives Designated As Hedging Instruments | India Rupee
Derivative
Total gross notional amounts, presented by currency	17,444	16,046
Derivatives Designated As Hedging Instruments | Singapore Dollar
Derivative
Total gross notional amounts, presented by currency	12,867	12,918
Derivatives Designated As Hedging Instruments | Swiss Franc
Derivative
Total gross notional amounts, presented by currency	11,066	8,575
Derivatives Designated As Hedging Instruments | Japanese Yen
Derivative
Total gross notional amounts, presented by currency	16,172	3,776
Derivatives Not Designated As Hedging Instruments
Derivative
Total gross notional amounts, presented by currency	25,478	12,068
Derivatives Not Designated As Hedging Instruments | Euro
Derivative
Total gross notional amounts, presented by currency	25,478	0
Derivatives Not Designated As Hedging Instruments | British Pound
Derivative
Total gross notional amounts, presented by currency	0	0
Derivatives Not Designated As Hedging Instruments | India 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 | Swiss Franc
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	$ 12,068