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Business Segments and International Operations - Revenue from External Customers by Product (Details) - USD ($)
$ in Thousands
3 Months Ended
Feb. 28, 2021
Feb. 29, 2020
Segment Reporting Information [Line Items]    
Total revenue $ 121,280 $ 109,683
Software licenses    
Segment Reporting Information [Line Items]    
Total revenue 33,317 30,629
Performance obligations transferred at a point in time | Software licenses    
Segment Reporting Information [Line Items]    
Total revenue 33,317 30,629
Performance obligations transferred over time | Maintenance    
Segment Reporting Information [Line Items]    
Total revenue 76,977 70,056
Performance obligations transferred over time | Services    
Segment Reporting Information [Line Items]    
Total revenue $ 10,986 $ 8,998