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Discontinued Operations (Additional Information) (Details) - USD ($) $ in Millions |  | 3 Months Ended | 36 Months Ended
--- | --- | --- | ---
Dec. 11, 2018 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Sep. 30, 2024
Earn Out Received |  | $ 5.5 | $ 4.1 | $ 2.9 | $ 12.5
DeVry University |  |  |  |  |
Earn Out Maximum | $ 20.0 |  |  |  |
Earn Out Term | 10 years |  |  |  |

X
- Definition Amount of earn out received from the disposal group. + References No definition available. + Details
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Namespace Prefix: | atge_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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- Definition Represent the earn out maximum. + References No definition available. + Details
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Namespace Prefix: | atge_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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- Definition Represent the Earn out term. + References No definition available. + Details
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Namespace Prefix: | atge_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |