Assets and Liabilities Held for Sale (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Mar. 31, 2017	Oct. 29, 2017	Oct. 30, 2016	Nov. 01, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net proceeds from divestitures		$ 81,102	$ 36,648	$ 0
Information Technology Infrastructure Support Service
Assets included as part of continuing operations
Trade accounts receivable, net			13,553
Recoverable income taxes			15
Prepaid insurance and other assets			3,339
Property, equipment and software, net			178
Purchased intangible assets			495
Total major classes of assets of discontinued operations - Computer Systems			17,580
Liabilities included as part of continuing operations
Accrued compensation			2,432
Accounts payable			921
Accrued taxes other than income taxes			833
Accrued insurance and other			1,574
Total major classes of liabilities as part of continuing operations - Maintech and Lakyfor, S.A.			$ 5,760
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Maintech Holdings, LLC
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net proceeds from divestitures	$ 18,300
Working capital adjustment	$ 100
Working capital adjustment determination period	60 days
Proceeds from divestiture of businesses, net of cash divested	$ 13,100
Loss on disposal	3,900
Net assets and liabilities with title transfer pending	$ 400
Duration after sale company will provide accounting and operational services	6 months
Service agreement term	3 years