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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
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Sep. 30, 2019 | Sep. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Stock-Based Compensation Expense | $ 5,223 | $ 4,137
Income Tax Benefit | (2,533) | (2,007)
Net Stock-Based Compensation Expense | 2,690 | 2,130
Cost of Educational Services |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Stock-Based Compensation Expense | 455 | 395
Student Services And Administrative Expense |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Stock-Based Compensation Expense | $ 4,768 | $ 3,742

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