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Fair Value Measurements (Assets Measured on Nonrecurring Basis) (Details) - USD ($)
3 Months Ended 12 Months Ended
Nov. 30, 2017
Nov. 30, 2017
Nov. 30, 2016
Nov. 30, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Goodwill allocated to the Application Development and Deployment reporting unit, Total Losses   $ 0 $ 92,000,000 $ 0
Nonrecurring Basis [Member] | Level 3 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Intangible assets, Total Fair Value $ 0 0    
Intangible assets, Total Losses   5,051,000    
Application Development and Deployment [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Goodwill allocated to the Application Development and Deployment reporting unit, Total Losses 92,000,000   $ 92,000,000  
Application Development and Deployment [Member] | Nonrecurring Basis [Member] | Level 3 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Goodwill allocated to the Application and Deployment reporting unit, Total Fair Value 46,965,000 46,965,000    
Goodwill allocated to the Application Development and Deployment reporting unit, Total Losses $ 92,000,000 $ 92,000,000