Special Charges (Details) $ in Thousands	3 Months Ended				9 Months Ended		12 Months Ended
	Aug. 01, 2015 USD ($)	May. 02, 2015 USD ($)	Jan. 31, 2015 USD ($)	Aug. 02, 2014 USD ($)	Aug. 01, 2015 USD ($) employee	Aug. 02, 2014 USD ($)	Nov. 01, 2014 USD ($) employee
Restructuring Cost and Reserve [Line Items]
Facility closure costs	$ (37)	$ (36)	$ (366)
Non-cash portion of special charge			(433)
Summary of the Company's special charges, Income Statement
Workforce reductions							$ 37,873
Facility closure costs							459
Non-cash impairment charge							433
Restructuring Reserve, Translation and Other Adjustment							(1,443)
Total Charges	0			$ 0	$ 0	$ 2,685	37,322
Summary of the Company's special charges and accruals related to ongoing actions, Balance Sheet
Accrued Restructuring, Beginning Balance	15,200	24,462	40,503		40,503
Total Charges	0			0	0	2,685	37,322
Severance payments	(5,465)	(9,155)	(14,795)
Effect of foreign currency on accrual	15	71	(447)
Accrued Restructuring, Ending Balance	9,683	$ 15,200	$ 24,462		9,683		40,503
Special Charges (Textual) [Abstract]
Total Charges	$ 0			$ 0	$ 0	$ 2,685	$ 37,322
Reduction of Operating Costs 2014 [Member]
Special Charges (Textual) [Abstract]
Number Of Manufacturing Engineering And Selling Marketing General And Administrative Employees Related to Action | employee							341
Reduction of Operating Costs 2014 [Member] [Member] [Member]
Special Charges (Textual) [Abstract]
Number Of Employees Still Employed Who Are Planned To Be Separated | employee					4