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Summary of Goodwill Balances by Reporting Unit (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2010
Intangible Assets [Line Items]      
Goodwill $ 549,961 $ 523,620 $ 514,864
Devry University
     
Intangible Assets [Line Items]      
Goodwill 22,196    
Becker Professional Review
     
Intangible Assets [Line Items]      
Goodwill 32,760    
Ross University
     
Intangible Assets [Line Items]      
Goodwill 237,173    
Chamberlain College of Nursing
     
Intangible Assets [Line Items]      
Goodwill 4,716    
Carrington Colleges Group Inc
     
Intangible Assets [Line Items]      
Goodwill 151,878    
American University Of Caribbean
     
Intangible Assets [Line Items]      
Goodwill 68,321    
DeVry Brasil
     
Intangible Assets [Line Items]      
Goodwill $ 32,917