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INTANGIBLE ASSETS (Summary of Indefinite-Lived Intangible Assets Balances by Reporting Segment) (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Jun. 30, 2017	Dec. 31, 2016
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets balances	$ 355,915	$ 356,138	$ 358,206
Medical and Healthcare
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets balances	137,500	137,500	137,500
Professional Education
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets balances	67,812	67,812	67,812
Technology And Business
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets balances	130,403	130,626	132,694
U.S. Traditional Postsecondary
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets balances	$ 20,200	$ 20,200	$ 20,200

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- 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

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X

- Definition

Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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