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INTANGIBLE ASSETS (Schedule of Intangible Assets) (Detail) - USD ($) $ in Thousands | 3 Months Ended |  |
--- | --- | --- | ---
Sep. 30, 2018 | Jun. 30, 2018 | Sep. 30, 2017
Intangible Assets [Line Items] |  |  |
Amortizable Intangible Assets, Gross Carrying Amount | $ 67,802 | $ 69,502 | $ 75,599
Amortizable Intangible Assets, Accumulated Amortization | (25,335) | (24,521) | (21,445)
Indefinite-lived Intangible Assets, Gross Carrying Amount | 313,128 | 317,950 | 341,762
Student Relationships [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Amortizable Intangible Assets, Gross Carrying Amount | 7,713 | 8,193 | 11,561
Amortizable Intangible Assets, Accumulated Amortization | $ (6,799) | (6,972) | (8,860)
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 | $ (10,756) | (9,598) | (6,092)
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
Amortizable Intangible Assets, Accumulated Amortization |  | (700) | (674)
Curriculum/Software [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Amortizable Intangible Assets, Gross Carrying Amount | $ 6,755 | 6,833 | 7,243
Amortizable Intangible Assets, Accumulated Amortization | $ (4,730) | (4,265) | (2,887)
Amortizable Intangible Assets, Weighted Average Amortization Period | 4 years |  |
Franchise Contracts [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Amortizable Intangible Assets, Gross Carrying Amount | $ 8,677 | 9,064 | 11,088
Amortizable Intangible Assets, Accumulated Amortization | $ (1,768) | (1,720) | (1,643)
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 | $ (281) | (250) | (156)
Amortizable Intangible Assets, Weighted Average Amortization Period | 4 years |  |
Clinical Agreements [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Amortizable Intangible Assets, Gross Carrying Amount | $ 321 | 336 | 411
Amortizable Intangible Assets, Accumulated Amortization | $ (112) | (112) | (116)
Amortizable Intangible Assets, Weighted Average Amortization Period | 15 years |  |
Trade Names [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Amortizable Intangible Assets, Gross Carrying Amount | $ 936 | 976 | 1,196
Amortizable Intangible Assets, Accumulated Amortization | (889) | (904) | (1,017)
Indefinite-lived Intangible Assets, Gross Carrying Amount | $ 104,832 | 106,132 | 111,010
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
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 | $ 79,056 | $ 82,578 | $ 101,512

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