STOCK-BASED COMPENSATION (Total Stock-Based Compensation Expense Included in Consolidated Statement of Income) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-Based Compensation Expense	$ 3,904	$ 3,812	$ 13,435	$ 13,672
Income Tax Benefit	(1,403)	(1,313)	(4,862)	(4,651)
Net Stock-Based Compensation Expense	2,501	2,499	8,573	9,021
Cost Of Educational Services
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-Based Compensation Expense	1,249	1,220	4,299	4,375
Student Services And Administrative Expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-Based Compensation Expense	$ 2,655	$ 2,592	$ 9,136	$ 9,297