Discontinued Operations - Assets and Liabilities (Details) (Computer Systems Segment, USD $) In Thousands, unless otherwise specified	Nov. 02, 2014
Assets Held-for-sale
ASSETS
Cash and cash equivalents	$ 282
Trade accounts receivable, net	10,535
Recoverable income taxes	921
Prepaid insurance and other assets	9,251
Property, equipment and software, net	3,231
Total assets of the disposal group classified as held for sale in the Condensed Consolidated Balance Sheets	24,220
Liabilities Held-for-sale
Liabilities [Abstract]
Accrued compensation	2,272
Accounts payable	992
Accrued taxes other than income taxes	649
Accrued insurance and other	5,794
Deferred revenue	9,419
Total liabilities of the disposal group classified as held for sale in the Condensed Consolidated Balance Sheets	$ 19,126

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