Summary of Significant Accounting Policies - Discontinued Operations (Details) (USD $)	3 Months Ended								12 Months Ended			3 Months Ended	12 Months Ended
	Nov. 03, 2012	Aug. 04, 2012	May 05, 2012	Feb. 04, 2012	Oct. 29, 2011	Jul. 30, 2011	Apr. 30, 2011	Feb. 04, 2011	Nov. 03, 2012	Oct. 29, 2011	Oct. 30, 2010	Jan. 30, 2010 CPU Voltage Regulation And PC Thermal Monitoring Business [Member]	Oct. 29, 2011 Baseband And Chipset Business [Member]	Oct. 30, 2010 Baseband And Chipset Business [Member]	Oct. 31, 2009 Baseband And Chipset Business [Member]	Nov. 01, 2008 Baseband And Chipset Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Additional proceeds released from escrow recorded as pre tax gain												$ 1,000,000
Additional proceeds released from escrow net of tax												600,000
Proceeds from divestiture of businesses																269,000,000
Additional cash payments related to sale of business															1,700,000
Cash refund of foreign withholding tax														62,000,000
Additional pre-tax gain on sale														300,000
Additional gain on sale, net of tax														200,000
Additional proceeds company may receive, currently held in escrow													10,000,000
Gain on sale of discontinued operations	0	0	0	0	0	0	0	6,500,000	0	6,500,000	859,000		6,500,000
Income from discontinued operations, net of tax
Gain on sale of discontinued operations before income taxes									0	10,000,000	1,316,000
Provision for income taxes									0	3,500,000	457,000
Gain on sale of discontinued operations, net of tax									$ 0	$ 6,500,000	$ 859,000