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Business Segments and International Operations (Revenue from External Customers by Product) (Details) - USD ($)
$ in Thousands
3 Months Ended
Feb. 29, 2016
Feb. 28, 2015
Segment Reporting [Abstract]    
Software licenses $ 23,955 $ 25,231
Maintenance 58,336 49,239
Professional services 7,190 6,911
Total revenue $ 89,481 $ 81,381