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Nature of Operations (Details) (USD $)
1 Months Ended
Aug. 31, 2011
Sep. 12, 2011
Carnegie Learning Aquisition [Member]
Subsequent Event [Member]
Oct. 19, 2011
Carnegie Mellon Technology Aquisition [Member]
Subsequent Event [Member]
Sep. 12, 2011
Carnegie Mellon Technology Aquisition [Member]
Subsequent Event [Member]
Nature of Operations (Details) [Abstract]    
Apollo Group ownership in Apollo Global85.60%   
Business Acquisition [Line Items]    
Purchase price $ 75,000,000  
Acquired technology   $ 21,500,000
Maturity of note payable  10-year period