XML 58 R49.htm IDEA: XBRL DOCUMENT
v3.8.0.1

FAIR VALUE MEASUREMENTS - Additional Information (Detail) - USD ($) $ in Millions | Dec. 31, 2017 | Jun. 30, 2017 | Dec. 31, 2016
--- | --- | --- | ---
Accrued Liabilities |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Deferred Acquisition Obligations | $ 4.0 | $ 14.8 | $ 15.1
Deferred Rent and Other Liabilities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Deferred Acquisition Obligations | $ 19.9 | $ 11.8 | $ 14.4

X
- Definition Net amount of deferred acquisition costs as of the balance sheet date. + References No definition available. + Details
Name: | atge_DeferredAcquisitionObligations
Namespace Prefix: | atge_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_AccruedLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=atge_DeferredRentAndOtherLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |