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STOCK-BASED COMPENSATION (Total Stock-Based Compensation Expense Included in Consolidated Statement of Income) (Detail) - USD ($)
$ in Thousands
3 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock-Based Compensation Expense $ 6,238 $ 5,522
Income Tax Benefit (2,204) (2,041)
Net Stock-Based Compensation Expense 4,034 3,481
Cost Of Educational Services    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock-Based Compensation Expense 1,996 1,767
Student Services And Administrative Expense    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock-Based Compensation Expense $ 4,242 $ 3,755