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Stock-based Compensation (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
May 31, 2014
May 31, 2013
May 31, 2014
May 31, 2013
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount $ 0 $ 0 $ 0 $ 0
Income tax benefits 12,322 8,208 27,384 21,926
Stock-based compensation expense 36,032 30,799 79,996 70,561
Cost of revenue
       
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Stock-based compensation expense 1,511 1,294 3,371 2,976
Selling general and administrative [Member]
       
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Stock-based compensation expense $ 34,521 $ 29,505 $ 76,625 $ 67,585