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STOCK PLANS AND STOCK-BASED COMPENSATION (Detail Textual 1) - USD ($) | 12 Months Ended
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Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Vesting period (in years) | 3 years |  |
Income tax benefit realized | $ 8,009,000 | $ 5,849,000 | $ 4,865,000
ESPP Plan |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of shares authorized for grants | 1,500,000 |  |
Percentage of fair market value | 95.00% |  |
Maximum number of shares that an eligible employee can purchase | The maximum number of shares that an eligible employee can purchase during any quarter is equal to two times an amount determined as follows: 20 percent of such employee’s compensation over the quarter, divided by 95 percent of the fair market value of a share of common stock on the last day of the quarter. |  |
Cumulative shares purchased under ESPP Plan | 1,258,062 |  |
Cumulative weighted-average purchase price per share | $ 66.67 |  |
Shares purchased under ESPP Plan | 40,658 |  |
Weighted-average price per share | $ 221.79 |  |
MSPP Plan |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of shares authorized for grants | 500,000 |  |
Percentage of annual bonus in lieu of which RSU received | 85.00% | 85.00% | 85.00%
MSPP Plan | Maximum |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Percentage of annual bonus in lieu of which RSU received | 100.00% |  |
DSPP Plan |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of shares authorized for grants | 75,000 |  |
Percentage of annual bonus in lieu of which RSU received | 100.00% |  |
Number of awards outstanding | 0 |  |
PRSUs |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Period to establish average share price for performance measurement | 90 days |  |
Share price | $ 216.00 |  |
Risk free rate of return | 0.16% |  |
Expected volatility | 31.95% |  |
Restricted Stock Units |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Weighted-average fair value of RSUs granted | $ 243.87 | $ 252.25 | $ 201.27
Vesting period (in years) | 3 years |  |
Total intrinsic value of RSUs that vested | $ 52,700,000 | $ 79,600,000 | $ 53,000,000.0
Income tax benefit realized | 13,900,000 | $ 15,900,000 | $ 10,200,000
Unrecognized compensation cost | $ 38,600,000 |  |
Weighted-average period to recognize unrecognized compensation cost (in years) | 2 years 6 months |  |
SSARs and Stock Options |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Unrecognized compensation cost | $ 0 |  |

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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=120381028&loc=d3e5070-113901 + Details
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