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INTANGIBLE ASSETS (Changes in Carrying Amount of Goodwill, by Segment) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Goodwill [Line Items]
Goodwill beginning balance	$ 588,007	$ 552,329	$ 519,879
Purchase Accounting Adjustments	(3,603)	4,575
Acquisitions	274,689	116,007	55,915
Impairments		(98,784)
Foreign exchange rate changes	(7,811)	13,880	(23,465)
Goodwill ending balance	851,282	588,007	552,329
Medical And Healthcare [Member]
Goodwill [Line Items]
Goodwill beginning balance	310,210	310,210	310,210
Purchase Accounting Adjustments	0	0
Acquisitions	0	0	0
Impairments		0
Foreign exchange rate changes	0	0	0
Goodwill ending balance	310,210	310,210	310,210
Professional Education [Member]
Goodwill [Line Items]
Goodwill beginning balance	32,043	32,797	33,217
Purchase Accounting Adjustments	0	0
Acquisitions	274,689	0	0
Impairments		0
Foreign exchange rate changes	(79)	(754)	(420)
Goodwill ending balance	306,653	32,043	32,797
Technology And Business [Member]
Goodwill [Line Items]
Goodwill beginning balance	223,558	88,342	55,472
Purchase Accounting Adjustments	(3,603)	4,575
Acquisitions	0	116,007	55,915
Impairments		0
Foreign exchange rate changes	(7,732)	14,634	(23,045)
Goodwill ending balance	212,223	223,558	88,342
U.S. Traditional Postsecondary [Member]
Goodwill [Line Items]
Goodwill beginning balance	207,913	207,913	207,913
Purchase Accounting Adjustments	0	0
Acquisitions	0	0	0
Impairments		0
Foreign exchange rate changes	0	0	0
Goodwill ending balance	207,913	207,913	207,913
Accumulated Impairment Losses beginning balance	(185,717)	(86,933)	(86,933)
Purchase Accounting Adjustments	0	0
Acquisitions	0	0	0
Impairments		(98,784)
Foreign exchange rate changes	0	0	0
Accumulated Impairment Losses ending balance	$ (185,717)	$ (185,717)	$ (86,933)

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