Restructuring Expense (Restructuring and Related Costs) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
Restructuring Cost and Reserve [Line Items]
Restructuring expense	$ 3,314	$ 1,870	$ 18,817
Chamberlain.
Restructuring Cost and Reserve [Line Items]
Restructuring expense	1,912		818
Walden
Restructuring Cost and Reserve [Line Items]
Restructuring expense		(776)	3,245
Medical and Veterinary
Restructuring Cost and Reserve [Line Items]
Restructuring expense	454	442	7,687
Home Office
Restructuring Cost and Reserve [Line Items]
Restructuring expense	948	2,204	7,067
Real Estate and Other
Restructuring Cost and Reserve [Line Items]
Restructuring expense	1,897	1,830	17,197
Real Estate and Other | Chamberlain.
Restructuring Cost and Reserve [Line Items]
Restructuring expense	974		818
Real Estate and Other | Walden
Restructuring Cost and Reserve [Line Items]
Restructuring expense		(776)	3,191
Real Estate and Other | Medical and Veterinary
Restructuring Cost and Reserve [Line Items]
Restructuring expense	215	402	7,071
Real Estate and Other | Home Office
Restructuring Cost and Reserve [Line Items]
Restructuring expense	708	2,204	6,117
Termination Benefits
Restructuring Cost and Reserve [Line Items]
Restructuring expense	1,417	40	1,620
Termination Benefits | Chamberlain.
Restructuring Cost and Reserve [Line Items]
Restructuring expense	938		0
Termination Benefits | Walden
Restructuring Cost and Reserve [Line Items]
Restructuring expense			54
Termination Benefits | Medical and Veterinary
Restructuring Cost and Reserve [Line Items]
Restructuring expense	239	$ 40	616
Termination Benefits | Home Office
Restructuring Cost and Reserve [Line Items]
Restructuring expense	$ 240		$ 950