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Stock-Based Compensation (Classification of Stock-Based Compensation) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Feb. 28, 2014
Feb. 28, 2013
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Stock-based compensation expense $ 5,545 $ 4,906
Cost of maintenance and services [Member]
   
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Stock-based compensation expense 152 209
Sales and marketing [Member]
   
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Stock-based compensation expense 1,199 1,039
Product development [Member]
   
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Stock-based compensation expense 1,353 1,463
General and administrative [Member]
   
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Stock-based compensation expense 2,841 1,778
Stock-based compensation from continuing operations [Member]
   
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Stock-based compensation expense 5,545 4,489
Income from discontinued operations
   
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Stock-based compensation expense $ 0 $ 417