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Goodwill and Intangible Assets (Summary of Goodwill Balances by Reporting Segment) (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Jun. 30, 2024
--- | --- | ---
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

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