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INCOME TAXES - Effective income tax rate (Details)
 12 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2021
Effective income tax rate      
Provision for income taxes at federal statutory rate 21.00% 21.00% 21.00%
Research and development tax credits (1.50%) (1.30%) (1.70%)
Foreign income subject to tax at other than federal statutory rate 0.20% 0.20% 0.60%
Stock compensation (0.40%) (1.20%) (0.90%)
Officers' compensation 5.50% 4.30% 5.80%
Change in valuation allowance (0.50%) (4.00%) (5.90%)
Unrecognized tax expense (benefit) 0.30% (1.40%) 4.20%
Tax on foreign currency gains and losses (0.60%)   (0.20%)
State tax expense 0.30% 1.00% 1.20%
U.S. tax on foreign earnings 1.40% 0.90% (1.80%)
Changes in prior year estimates (1.10%) (0.60%)  
Global intangible low-taxed income, net of foreign tax credits 0.80% 0.30% 0.50%
Foreign Derived Intangible Income Benefit (1.80%) (1.30%) (1.30%)
Non-taxable earnings from acquisitions (2.10%) (0.60%) (0.40%)
Patent box benefit (1.90%) (0.30%)  
Withholding tax on foreign earnings     3.40%
Other 0.80% 0.70% 0.40%
Effective income tax rate 20.40% 17.70% 24.90%