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INCOME TAXES - Schedule of Effective Income Tax Rate Reconciliation (Detail 2) - USD ($) $ in Thousands		12 Months Ended
		Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Income Tax Disclosure [Abstract]
Expected tax expense computed at federal statutory rate	[1]	$ 68,861	$ 83,805	$ 87,017
State and local taxes, net of federal benefit		13,216	11,860	9,263
Nonincludible and nondeductible items, net		1,971	1,832	1,087
Remeasurement of deferred taxes and transition tax		(2,182)	(86,593)
Effect of foreign tax rates		(380)	(1,261)	(2,320)
R&D tax credit		(6,755)	(3,630)	(4,894)
Other tax credits		(2,138)	(2,102)	(1,321)
ASU 2016-09 share-based compensation		(7,493)	(5,388)	(1,390)
Other		(2,795)	(1,030)	(2,494)
Total income tax (benefit) expense		$ 62,305	$ (2,507)	$ 84,948
[1] The U.S. federal statutory income tax rate for FY2019 is 21.0 percent. The federal statutory rate for FY2018 was a blended rate of 28.06 percent due to the TCJA. The federal statutory rate for FY2017 was 35.0 percent.

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