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Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands | 3 Months Ended
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Sep. 30, 2023 | Sep. 30, 2022
Business integration expense | $ 5,262 | $ 9,540
Walden University, LLC |  |
Business integration expense | $ 5,300 | $ 9,500

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- Definition Costs incurred to effect a business combination which have been expensed during the period. Such costs could include business integration costs, systems integration and conversion costs, and severance and other employee-related costs. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
Name: | us-gaap_BusinessAcquisitionAxis=atge_WaldenUniversityLlcMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |