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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 | 9 Months Ended
--- | --- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Mar. 31, 2021 | Mar. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Stock-Based Compensation Expense | $ 3,595 | $ 2,781 | $ 11,247 | $ 11,328
Income Tax Benefit | (910) | (642) | (2,077) | (3,887)
Net Stock-Based Compensation Expense | 2,685 | 2,139 | 9,170 | 7,441
Cost of Educational Services |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Stock-Based Compensation Expense | 338 | 260 | 1,076 | 1,027
Student Services And Administrative Expense |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Stock-Based Compensation Expense | $ 3,257 | $ 2,521 | $ 10,171 | $ 10,301

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