Special Charges (Details) (USD $)	3 Months Ended			12 Months Ended			36 Months Ended	3 Months Ended
	Feb. 02, 2013	Feb. 04, 2012	Feb. 02, 2013 Reduction of Operating Costs [Member]	Nov. 03, 2012 Reduction of Operating Costs [Member]	Oct. 29, 2011 Reduction of Operating Costs [Member]	Oct. 30, 2010 Reduction of Operating Costs [Member]	Nov. 03, 2012 Reduction of Operating Costs 2008-2010 [Member] Person	Feb. 02, 2013 Reduction of Operating Costs 2011 [Member] Person
Summary of the Company's special charges, Income Statement
Workforce reductions			$ 14,071,000	$ 7,966,000	$ 2,239,000	$ 10,908,000
Facility closure costs			0	186,000	0	0
Non-cash impairment charge			0	219,000	0	487,000
Other items			0	60,000	0	24,000
Total Charges	14,071,000	2,595,000	14,071,000	8,431,000	2,239,000	11,419,000	22,100,000	14,100,000
Summary of the Company's special charges and accruals related to ongoing actions, Balance Sheet
Accrued Restructuring, Beginning Balance			2,993,000
Total Charges	14,071,000	2,595,000	14,071,000	8,431,000	2,239,000	11,419,000	22,100,000	14,100,000
Severance payments			(4,276,000)
Effect of foreign currency on accrual			(36,000)
Accrued Restructuring, Ending Balance			12,824,000	2,993,000
Special Charges (Textual) [Abstract]
Charge related to lease obligation costs for facilities ceased using by Company							200,000
Write-off of property, plant and equipment no longer used							200,000
Contract termination costs							100,000
Total Charges	14,071,000	2,595,000	14,071,000	8,431,000	2,239,000	11,419,000	22,100,000	14,100,000
Charge related to the severance and fringe benefit costs							21,100,000
Number Of Manufacturing Engineering And Selling Marketing General And Administrative Employees Related to Action							269	137
Number Of Employees Still Employed Who Are Planned To Be Separated								19
Impairment of intellectual property, related to the Company's decision to abandon efforts to develop a particular expertise in power management							$ 500,000