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Business Segments and International Operations (Revenue from External Customers by Product) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Aug. 31, 2015
Aug. 31, 2014
Aug. 31, 2015
Aug. 31, 2014
Segment Reporting [Abstract]        
Software licenses $ 31,840 $ 26,393 $ 85,794 $ 76,645
Maintenance 55,365 50,746 157,259 151,231
Professional services 7,432 2,135 21,783 6,763
Total revenue $ 94,637 $ 79,274 $ 264,836 $ 234,639