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, 2016 |
May 31, 2015 |
May 31, 2016 |
May 31, 2015 |
|
| Revenue from External Customer [Line Items] | ||||
| Total revenue | $ 96,118 | $ 88,817 | $ 185,599 | $ 170,198 |
| North America [Member] | ||||
| Revenue from External Customer [Line Items] | ||||
| Total revenue | 53,392 | 47,520 | 102,457 | 89,644 |
| EMEA [Member] | ||||
| Revenue from External Customer [Line Items] | ||||
| Total revenue | 31,577 | 31,146 | 62,798 | 59,010 |
| Latin America [Member] | ||||
| Revenue from External Customer [Line Items] | ||||
| Total revenue | 4,389 | 4,388 | 8,082 | 9,356 |
| Asia Pacific [Member] | ||||
| Revenue from External Customer [Line Items] | ||||
| Total revenue | $ 6,760 | $ 5,763 | $ 12,262 | $ 12,188 |