INTANGIBLE ASSETS (Changes in Carrying Amount of Goodwill, by Segment) (Detail) - USD ($) $ in Thousands	6 Months Ended
Dec. 31, 2018	Jun. 30, 2018	Dec. 31, 2017
Goodwill [Line Items]
Goodwill beginning balance	$ 813,887	$ 832,943	$ 829,086
Acquisitions		11,527	4,121
Foreign exchange rate changes	(711)	(32,098)	(264)
Purchase accounting adjustments		1,515
Goodwill ending balance	813,176	813,887	832,943
Medical And Healthcare [Member]
Goodwill [Line Items]
Goodwill beginning balance	310,210	310,210	310,210
Acquisitions		0	0
Foreign exchange rate changes	0	0	0
Purchase accounting adjustments		0
Goodwill ending balance	310,210	310,210	310,210
Professional Education [Member]
Goodwill [Line Items]
Goodwill beginning balance	317,699	306,808	306,653
Acquisitions		11,527	0
Foreign exchange rate changes	(315)	(636)	155
Purchase accounting adjustments		0
Goodwill ending balance	317,384	317,699	306,808
Technology And Business [Member]
Goodwill [Line Items]
Goodwill beginning balance	185,978	215,925	212,223
Acquisitions		0	4,121
Foreign exchange rate changes	(396)	(31,462)	(419)
Purchase accounting adjustments		1,515
Goodwill ending balance	$ 185,582	$ 185,978	$ 215,925

Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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