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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, 2020 | Sep. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Stock-Based Compensation Expense | $ 4,004 | $ 5,223
Income Tax Benefit | (526) | (2,533)
Net Stock-Based Compensation Expense | 3,478 | 2,690
Cost of Educational Services |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Stock-Based Compensation Expense | 393 | 455
Student Services And Administrative Expense |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Stock-Based Compensation Expense | $ 3,611 | $ 4,768

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