INCOME TAXES - Schedule of Effective Income Tax Rate Reconciliation (Detail 2) - USD ($) $ in Thousands		12 Months Ended
		Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Income Tax Disclosure [Abstract]
Expected tax expense computed at federal statutory rate	[1]	$ 83,805	$ 87,017	$ 78,264
State and local taxes, net of federal benefit		11,860	9,263	7,429
Nonincludible and nondeductible items, net		1,832	1,087	2,936
Remeasurement of deferred taxes and transition tax		(86,593)
Effect of foreign tax rates		(1,261)	(2,320)	(2,308)
R&D tax credit		(3,630)	(4,894)	(135)
Other tax credits		(2,102)	(1,321)	(1,744)
ASU 2016-09 share-based compensation		(5,388)	(1,390)	(1,061)
Other		(1,030)	(2,494)	(2,568)
Total income tax (benefit) expense		$ (2,507)	$ 84,948	$ 80,813

[1] The U.S. federal statutory income tax rate for FY2018 is a blended rate of 28.06 percent due to the TCJA. The federal statutory rate for FY2017 and FY2016 was 35.0 percent.