INCOME TAXES - Schedule of Effective Income Tax Rate Reconciliation (Detail 2) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Expected tax expense computed at federal statutory rate	$ 104,919	$ 84,344	$ 68,861
State and local taxes, net of federal benefit	21,252	15,965	13,216
Remeasurement of current year NOL	(56,192)
Nonincludible and nondeductible items, net	(2,269)	3,133	1,971
Remeasurement of deferred taxes and transition tax			(2,182)
Effect of foreign tax rates	(687)	(377)	(380)
R&D tax credit, net	(18,173)	(10,700)	(6,755)
Other tax credits	(648)	(1,183)	(2,138)
Stock-based compensation	(5,525)	(10,900)	(7,493)
Other	(505)	(125)	(2,795)
Total income tax expense	$ 42,172	$ 80,157	$ 62,305
Effective income tax rate	8.40%	20.00%	19.00%