Stock-Based Compensation (Total Stock-Based Compensation Expense Included in Consolidated Statement of Income) (Detail) - USD ($) $ in Thousands	3 Months Ended
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

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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