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INCOME TAXES - Effective income tax rate (Details)	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Effective income tax rate
Provision for income taxes at federal statutory rate (as a percent)	21.00%	21.00%	21.00%
Research and development tax credits (as a percent)	(1.70%)	(1.60%)	(1.60%)
Foreign income subject to tax at other than federal statutory rate (as a percent)	0.60%	(0.80%)	2.90%
Stock compensation (as a percent)	(0.90%)	(6.70%)	(3.20%)
Officers' compensation (as a percent)	5.80%	4.40%	3.50%
Change in valuation allowance (as a percent)	(5.90%)	(1.30%)	(1.80%)
Unrecognized tax expense (as a percent)	4.20%	1.20%	0.10%
Tax on foreign currency gains and losses (as a percent)	(0.20%)	2.10%	0.20%
State tax expense (as a percent)	1.20%	1.10%	1.60%
U.S. tax on foreign earnings (as a percent)	(1.80%)	(2.10%)	1.00%
Changes in prior year estimates (as a percent)		(6.40%)
Global intangible low-taxed income, net of foreign tax credits (as a percent)	0.50%	1.80%	1.00%
Foreign Derived Intangible Income Benefit	(1.30%)	(0.60%)	(0.40%)
Withholding tax on foreign earnings (as a percent)	3.40%
Other (as a percent)		0.50%	0.50%
Effective income tax rate (as a percent)	24.90%	12.60%	24.80%

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Percentage of foreign derived intangible income benefit.

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