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FAIR VALUE MEASUREMENTS - Additional Information (Detail) - USD ($)
$ in Millions
6 Months Ended
Dec. 31, 2018
Dec. 11, 2018
Jun. 30, 2018
Dec. 31, 2017
DeVry University Operations [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Debt Instrument, Interest Rate, Stated Percentage   4.00%    
Debt Instrument, Maturity Date Jan. 01, 2022      
Accrued Liabilities        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Deferred Acquisition Obligations $ 4.3   $ 4.3 $ 4.0
Other Liabilities        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Deferred Acquisition Obligations $ 14.2   $ 14.3 $ 19.9
Notes Receivable [Member] | DeVry University Operations [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Loans Receivable, Fair Value Disclosure   $ 10.0