Discontinued Operations - Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended
	Jan. 31, 2016	Feb. 01, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Other income (expense), net	$ (279)	$ 98
Total loss from discontinued operations	$ 0	(4,519)
Computer Systems Segment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net revenue		4,708
Cost of revenue		(5,730)
Selling, administrative and other operating costs		(1,388)
Restructuring and other related costs		(1,709)
Other income (expense), net		978
Loss from discontinued operations		(3,141)
Loss on disposal of discontinued operations		(1,187)
Total loss from discontinued operations		(4,328)
Income tax provision		191
Total loss from discontinued operations that is presented in the Condensed Consolidated Statements of Operations		$ (4,519)