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Business Segments and International Operations (Revenue from External Customers from Different Geographical Areas) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
May 31, 2017 | May 31, 2016 | May 31, 2017 | May 31, 2016
Revenue from External Customer [Line Items] |  |  |  |
Total revenue | $ 93,213 | $ 96,118 | $ 184,183 | $ 185,599
North America [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total revenue | 51,430 | 53,392 | 101,735 | 102,457
EMEA [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total revenue | 30,646 | 31,577 | 60,490 | 62,798
Latin America [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total revenue | 5,637 | 4,389 | 10,660 | 8,082
Asia Pacific [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total revenue | $ 5,500 | $ 6,760 | $ 11,298 | $ 12,262

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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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