Restructuring Expense (Restructuring and Related Costs) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Restructuring Cost and Reserve [Line Items]
Restructuring expense	$ 1,870	$ 18,817	$ 25,628
Home Office
Restructuring Cost and Reserve [Line Items]
Restructuring expense	2,204	7,067	8,946
Operating Segments [Member] | Chamberlain.
Restructuring Cost and Reserve [Line Items]
Restructuring expense		818	2,838
Operating Segments [Member] | Walden
Restructuring Cost and Reserve [Line Items]
Restructuring expense	(776)	3,245	4,053
Operating Segments [Member] | Medical and Veterinary
Restructuring Cost and Reserve [Line Items]
Restructuring expense	442	7,687	9,791
Real Estate and Other
Restructuring Cost and Reserve [Line Items]
Restructuring expense	1,830	17,197	14,487
Real Estate and Other | Home Office
Restructuring Cost and Reserve [Line Items]
Restructuring expense	2,204	6,117	5,977
Real Estate and Other | Operating Segments [Member] | Chamberlain.
Restructuring Cost and Reserve [Line Items]
Restructuring expense		818	835
Real Estate and Other | Operating Segments [Member] | Walden
Restructuring Cost and Reserve [Line Items]
Restructuring expense	(776)	3,191
Real Estate and Other | Operating Segments [Member] | Medical and Veterinary
Restructuring Cost and Reserve [Line Items]
Restructuring expense	402	7,071	7,675
Termination Benefits
Restructuring Cost and Reserve [Line Items]
Restructuring expense	40	1,620	11,141
Termination Benefits | Home Office
Restructuring Cost and Reserve [Line Items]
Restructuring expense	0	950	2,969
Termination Benefits | Operating Segments [Member] | Chamberlain.
Restructuring Cost and Reserve [Line Items]
Restructuring expense			2,003
Termination Benefits | Operating Segments [Member] | Walden
Restructuring Cost and Reserve [Line Items]
Restructuring expense	0	54	4,053
Termination Benefits | Operating Segments [Member] | Medical and Veterinary
Restructuring Cost and Reserve [Line Items]
Restructuring expense	$ 40	$ 616	$ 2,116