Derivatives (Details 3) (Designated as Hedging Instrument [Member], USD $) In Thousands	3 Months Ended		9 Months Ended
	Jul. 30, 2011	Jul. 31, 2010	Jul. 30, 2011	Jul. 31, 2010
Cost of sales [Member]
Amounts reclassified into earnings before tax recognized in cost of sales and operating expenses
Amounts reclassified into earnings before tax, derivatives	$ 1,535	$ 1,497	$ 3,784	$ 218
Research and development [Member]
Amounts reclassified into earnings before tax recognized in cost of sales and operating expenses
Amounts reclassified into earnings before tax, derivatives	833	1,343	2,029	1,116
Selling, marketing, general and administrative [Member]
Amounts reclassified into earnings before tax recognized in cost of sales and operating expenses
Amounts reclassified into earnings before tax, derivatives	$ 908	$ 1,232	$ 2,070	$ 1,006