Derivative Instruments And Hedging Activities (Schedule Of Net Gains (Losses) Related To The Effective Portion Of Foreign Currency Derivatives) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 29, 2011	Oct. 30, 2010	Oct. 31, 2009
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) related to the effective portion of foreign currency derivatives	$ 7,292	$ (5,285)	$ (1,814)
Cost Of Revenues [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) related to the effective portion of foreign currency derivatives	882
Research And Development [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) related to the effective portion of foreign currency derivatives	496
Sales And Marketing [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) related to the effective portion of foreign currency derivatives	5,498
General And Administrative [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) related to the effective portion of foreign currency derivatives	416
Other Income (Loss), Net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) related to the effective portion of foreign currency derivatives		$ (5,285)	$ (1,814)