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v3.25.3

Fair Value Measurements (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Jun. 30, 2025
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Investment, type extensible enumeration | atge:InvestmentInRabbiTrustMember | atge:InvestmentInRabbiTrustMember
Principle balance | $ 558,283 | $ 558,283
Senior Secured Notes Due 2028 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Principle balance | 404,950 | 404,950
Senior Secured Notes Due 2028 | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Fair value | 405,100 | 402,800
Term B Loan |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Principle balance | 153,333 | 153,333
Term B Loan | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Fair value | 153,800 | 153,800
Accounts Receivable | Credit extension program | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans Receivable, Fair Value Disclosure | 26,200 | 27,100
Nonqualified Deferred Compensation Plan | Accrued Liabilities | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Deferred compensation | 14,900 | 13,500
Nonqualified Deferred Compensation Plan | Prepaid Expenses and Other Current Assets | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Fair value of credit extension programs | $ 13,500 | $ 12,800

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