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Description of the Business, Basis of Presentation and Summary of Significant Accounting Policies (Details2)
12 Months Ended
May. 31, 2015
Finite-Lived Intangible Assets [Line Items]  
Useful life of intangible assets 4 years
Prepublication Costs [Member] | Minimum [Member]  
Finite-Lived Intangible Assets [Line Items]  
Useful life of intangible assets 3 years
Prepublication Costs [Member] | Maximum [Member]  
Finite-Lived Intangible Assets [Line Items]  
Useful life of intangible assets 5 years
Customer Lists [Member]  
Finite-Lived Intangible Assets [Line Items]  
Useful life of intangible assets 5 years
Intellectual Property [Member] | Minimum [Member]  
Finite-Lived Intangible Assets [Line Items]  
Useful life of intangible assets 5 years
Intellectual Property [Member] | Maximum [Member]  
Finite-Lived Intangible Assets [Line Items]  
Useful life of intangible assets 10 years