Discontinued Operations (Summary of Income Statement Information of Operations) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Discontinued Operations And Disposal Groups [Abstract]
Revenue	$ 0	$ 0	$ 0	$ 0
Operating cost and expense:
Student services and administrative expense	(2,926)	(524)	(1,161)	2,741
Total operating cost and expense	(2,926)	(524)	(1,161)	2,741
Income (loss) from discontinued operations before income taxes	2,926	524	1,161	(2,741)
Gain (loss) on disposal of discontinued operations before income taxes	0	185	0	(3,174)
(Provision for) benefit from income taxes	(748)	(182)	(296)	1,521
Income (loss) from discontinued operations	$ 2,178	$ 527	$ 865	$ (4,394)