Goodwill and Intangible Assets (Summary of Goodwill Balances by Reporting Segment) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Jun. 30, 2023
Goodwill [Line Items]
Goodwill	$ 961,262	$ 961,262
Chamberlain
Goodwill [Line Items]
Goodwill	4,716	4,716
Walden
Goodwill [Line Items]
Goodwill	651,052	651,052
Medical and Veterinary
Goodwill [Line Items]
Goodwill	$ 305,494	$ 305,494