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Employee Benefit Plans (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2023 | Nov. 06, 2019
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Defined Contribution Plan, Employer Matching Contribution, Percent of Match | 100.00% |  |  |
Contributes percentage | 6.00% |  |  |
Matching and discretionary contributions expense | $ 21,900,000 | $ 19,700,000 | $ 17,900,000 |
Authorized amount | $ 25,000 |  |  |
Number of ESPP issuable |  |  |  | 500,000
Market price | 90.00% |  |  |
Brokerage commissions and administrative fees, percentage | 10.00% |  |  |
Total share issued | 17,148 | 19,666 | 18,463 |
Nonqualified Deferred Compensation Plan |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Contributes percentage | 6.00% |  |  |
Deferred Compensation Plan, Maximum Percentage of Deferment of Participant's Salary | 50.00% |  |  |
Deferred Compensation Plan, Maximum percentage of participant's Bonus or Board Fee | 100.00% |  |  |
Deferred Compensation Plan Assets | $ 12,800,000 | $ 13,200,000 |  |
Investment, Type [Extensible Enumeration] | atge:InvestmentInRabbiTrustMember | atge:InvestmentInRabbiTrustMember |  |
Accrued Liabilities [Member] | Nonqualified Deferred Compensation Plan |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Deferred Compensation Liability, Current | $ 13,500,000 | $ 12,200,000 |  |

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- Definition Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements payable within one year (or the operating cycle, if longer). Represents currently earned compensation under compensation arrangements that is not actually paid until a later date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 710 -SubTopic 10 -Name Accounting Standards Codification -Section 25 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483070/710-10-25-9 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 710 -SubTopic 10 -Section 30 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483043/710-10-30-2 + Details
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