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INTANGIBLE ASSETS (Schedule of Intangible Assets) (Detail) - USD ($) $ in Thousands | 9 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2018 | Jun. 30, 2017 | Mar. 31, 2017
Intangible Assets [Line Items] |  |  |
Amortizable Intangible Assets, Gross Carrying Amount | $ 73,009 | $ 75,859 | $ 78,861
Amortizable Intangible Assets, Accumulated Amortization | (24,096) | (19,839) | (19,510)
Indefinite-lived Intangible Assets, Gross Carrying Amount | 356,429 | 356,138 | 361,953
Student Relationships [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Amortizable Intangible Assets, Gross Carrying Amount | 9,601 | 12,459 | 13,014
Amortizable Intangible Assets, Accumulated Amortization | $ (7,831) | (9,323) | (9,149)
Amortizable Intangible Assets, Weighted Average Amortization Period | 5 years |  |
Customer Relationships [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Amortizable Intangible Assets, Gross Carrying Amount | $ 42,900 | 42,900 | 42,900
Amortizable Intangible Assets, Accumulated Amortization | $ (8,430) | (4,923) | (3,735)
Amortizable Intangible Assets, Weighted Average Amortization Period | 10 years |  |
Non-compete Agreements [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Amortizable Intangible Assets, Gross Carrying Amount | $ 700 | 700 | 1,640
Amortizable Intangible Assets, Accumulated Amortization | $ (691) | (665) | (1,439)
Amortizable Intangible Assets, Weighted Average Amortization Period | 1 year |  |
Curriculum/Software [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Amortizable Intangible Assets, Gross Carrying Amount | $ 7,148 | 7,147 | 8,113
Amortizable Intangible Assets, Accumulated Amortization | $ (3,901) | (2,329) | (2,699)
Amortizable Intangible Assets, Weighted Average Amortization Period | 4 years |  |
Franchise Contracts [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Amortizable Intangible Assets, Gross Carrying Amount | $ 10,621 | 10,615 | 11,087
Amortizable Intangible Assets, Accumulated Amortization | $ (1,868) | (1,425) | (1,335)
Amortizable Intangible Assets, Weighted Average Amortization Period | 18 years |  |
Proprietary Technology [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Amortizable Intangible Assets, Gross Carrying Amount | $ 500 | 500 | 500
Amortizable Intangible Assets, Accumulated Amortization | $ (219) | (125) | (94)
Amortizable Intangible Assets, Weighted Average Amortization Period | 4 years |  |
Clinical Agreements [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Amortizable Intangible Assets, Gross Carrying Amount | $ 393 | 393 | 411
Amortizable Intangible Assets, Accumulated Amortization | $ (125) | (104) | (102)
Amortizable Intangible Assets, Weighted Average Amortization Period | 15 years |  |
Trade Names [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Amortizable Intangible Assets, Gross Carrying Amount | $ 1,146 | 1,145 | 1,196
Amortizable Intangible Assets, Accumulated Amortization | (1,031) | (945) | (957)
Indefinite-lived Intangible Assets, Gross Carrying Amount | $ 109,755 | 109,519 | 111,008
Amortizable Intangible Assets, Weighted Average Amortization Period | 10 years |  |
Ross Title IV Eligibility and Accreditations [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Indefinite-lived Intangible Assets, Gross Carrying Amount | $ 14,100 | 14,100 | 14,100
Intellectual Property [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Indefinite-lived Intangible Assets, Gross Carrying Amount | 13,940 | 13,940 | 13,940
Chamberlain Title IV Eligibility and Accreditations [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Indefinite-lived Intangible Assets, Gross Carrying Amount | 1,200 | 1,200 | 1,200
Carrington Title IV Eligibility and Accreditations [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Indefinite-lived Intangible Assets, Gross Carrying Amount | 20,200 | 20,200 | 20,200
AUC Title IV Eligibility and Accreditations [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Indefinite-lived Intangible Assets, Gross Carrying Amount | 100,000 | 100,000 | 100,000
Adtalem Brazil Accreditation [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Indefinite-lived Intangible Assets, Gross Carrying Amount | $ 97,234 | $ 97,179 | $ 101,505

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