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STOCK-BASED COMPENSATION - Schedule of Assumptions, Estimated Fair Value of SARs, RSUs and PSUs (Details) - RSUs and PSUs | 12 Months Ended
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Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2018
Assumptions used in determining estimated fair value of stock based compensation awards |  |  |
Risk-free interest rate | 1.43% |  |
Expected volatility | 33.90% |  |
Expected dividend yield | 0.00% | 0.00% | 0.00%
Minimum |  |  |
Assumptions used in determining estimated fair value of stock based compensation awards |  |  |
Risk-free interest rate |  | 2.31% | 1.66%
Expected volatility |  | 34.20% | 33.40%
Maximum |  |  |
Assumptions used in determining estimated fair value of stock based compensation awards |  |  |
Risk-free interest rate |  | 2.68% | 2.59%
Expected volatility |  | 34.60% | 37.10%

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- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iii) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(ii) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iv) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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