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Business Segments and International Operations (Revenue from External Customers from Different Geographical Areas) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Aug. 31, 2017 | Aug. 31, 2016 | Aug. 31, 2017 | Aug. 31, 2016
Revenue from External Customer [Line Items] |  |  |  |
Total revenue | $ 97,310 | $ 102,018 | $ 281,493 | $ 287,617
North America [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total revenue | 55,703 | 58,275 | 157,438 | 160,732
EMEA [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total revenue | 31,830 | 32,719 | 92,320 | 95,517
Latin America [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total revenue | 5,009 | 4,667 | 15,669 | 12,749
Asia Pacific [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total revenue | $ 4,768 | $ 6,357 | $ 16,066 | $ 18,619

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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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