Restructuring Charges (Restructuring and Related Costs) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2021
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 1,363	$ 3,387	$ 16,428	$ 6,481
Chamberlain.
Restructuring Cost and Reserve [Line Items]
Restructuring Charges		335	818	335
Walden
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	41	1,791	3,121	1,791
Medical and Veterinary
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	87	188	6,913	188
Home Office and Other
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	1,235	1,073	5,576	4,167
Real Estate and Other
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	685	982	15,424	1,971
Real Estate and Other | Chamberlain.
Restructuring Cost and Reserve [Line Items]
Restructuring Charges		263	818	263
Real Estate and Other | Walden
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	41		3,067
Real Estate and Other | Medical and Veterinary
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	87	62	6,913	62
Real Estate and Other | Home Office and Other
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	557	657	4,626	1,646
Termination Benefits
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	678	2,405	1,004	4,510
Termination Benefits | Chamberlain.
Restructuring Cost and Reserve [Line Items]
Restructuring Charges		72		72
Termination Benefits | Walden
Restructuring Cost and Reserve [Line Items]
Restructuring Charges		1,791	54	1,791
Termination Benefits | Medical and Veterinary
Restructuring Cost and Reserve [Line Items]
Restructuring Charges		126		126
Termination Benefits | Home Office and Other
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 678	$ 416	$ 950	$ 2,521