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Stock-Based Compensation (Classification of Stock-Based Compensation) (Details) - USD ($)
$ in Thousands
3 Months Ended
Feb. 28, 2019
Feb. 28, 2018
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Stock-based compensation expense $ 5,806 $ 4,570
Cost of maintenance and services    
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Stock-based compensation expense 244 246
Sales and marketing    
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Stock-based compensation expense 1,048 370
Product development    
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Stock-based compensation expense 1,928 2,046
General and administrative    
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Stock-based compensation expense $ 2,586 $ 1,908