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DISCONTINUED OPERATIONS - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Dec. 31, 2013	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Assets Sale Price On Divestiture Of Businesses	$ 2,000
Adjustment Of Income Loss From Discontinued Operations Related to Impairment of Charge				$ 4,600
Disposal Group, Including Discontinued Operation, Operating Income (Loss)		$ 0	$ 0	$ 1,011

X

- Definition

It represents the amount of adjustment of income loss from discontinued operations related to impairment charge during the period.

+ References

No definition available.

+ Details

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X

- Definition

The cash inflow associated with the amount received from the sale of assets on divestiture of businesses.

+ References

No definition available.

+ Details

Name:	atge_AssetsSalePriceOnDivestitureOfBusinesses
Namespace Prefix:	atge_
Data Type:	xbrli:monetaryItemType
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Period Type:	duration

X

- Definition

Amount of operating income (loss) attributable to disposal group, including, but not limited to, discontinued operation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 5B
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721673-107760

+ Details

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