Summary of Significant Accounting Policies (Effect of Revision on Affected Line Items Within Consolidated Statements of Income) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenue	$ 368,845	$ 354,269
Student services and administrative expense	166,095	146,385
Business integration expense	5,262	9,540
Total operating cost and expense	340,651	330,635
Operating income	28,194	23,634
Other income, net	2,214	761
Income from continuing operations before income taxes	14,751	6,635
Provision for income taxes	(2,792)	(1,122)
Income from continuing operations	11,959	5,513
Loss from discontinued operations before income taxes	(1,765)	(3,265)
Benefit from income taxes	452	1,703
Loss from discontinued operations	(1,313)	(4,921)
Net income	$ 10,646	$ 592
Basic:
Continuing operations (In dollars per share)	$ 0.29	$ 0.12
Discontinued operations (In dollars per share)	(0.03)	(0.11)
Total basic earnings per share (In dollars per share)	0.26	0.01
Diluted:
Continuing operations (In dollars per share)	0.28	0.12
Discontinued operations (In dollars per share)	(0.03)	(0.11)
Total diluted earnings per share (In dollars per share)	$ 0.25	$ 0.01
Previously Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenue		$ 354,559
Student services and administrative expense		148,341
Business integration expense		8,415
Total operating cost and expense		331,466
Operating income		23,093
Other income, net		1,567
Income from continuing operations before income taxes		6,900
Provision for income taxes		(1,054)
Income from continuing operations		5,846
Loss from discontinued operations before income taxes		(3,438)
Benefit from income taxes		3,143
Loss from discontinued operations		(3,654)
Net income		$ 2,192
Basic:
Continuing operations (In dollars per share)		$ 0.13
Discontinued operations (In dollars per share)		(0.08)
Total basic earnings per share (In dollars per share)		0.05
Diluted:
Continuing operations (In dollars per share)		0.13
Discontinued operations (In dollars per share)		(0.08)
Total diluted earnings per share (In dollars per share)		$ 0.05
Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenue		$ (290)
Student services and administrative expense		(1,956)
Business integration expense		1,125
Total operating cost and expense		(831)
Operating income		541
Other income, net		(806)
Income from continuing operations before income taxes		(265)
Provision for income taxes		(68)
Income from continuing operations		(333)
Loss from discontinued operations before income taxes		173
Benefit from income taxes		(1,440)
Loss from discontinued operations		(1,267)
Net income		$ (1,600)
Basic:
Continuing operations (In dollars per share)		$ (0.01)
Discontinued operations (In dollars per share)		(0.03)
Total basic earnings per share (In dollars per share)		(0.04)
Diluted:
Continuing operations (In dollars per share)		(0.01)
Discontinued operations (In dollars per share)		(0.03)
Total diluted earnings per share (In dollars per share)		$ (0.04)