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STOCK-BASED COMPENSATION (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2015 | Nov. 30, 2015
Stock-based compensation |  |  |  |
Common stock authorized for future grants (in shares) |  |  |  | 2,500,000
Stock-based compensation expense | $ 9,983,000.000 | $ 10,039,000.000 | $ 5,141,000.000 |
Contractual term of awards | 10 years |  |  |
Stock options |  |  |  |
Stock-based compensation |  |  |  |
Stock-based compensation expense | $ 393,000 | $ 454,000 | $ 417,000 |
Key assumptions used in Black-Scholes model to determine the fair value of each stock option and SAR |  |  |  |
Weighted-average expected volatility (as a percent) | 41.70% | 36.90% | 37.30% |
Weighted-average expected life (in years) | 5 years 6 months | 5 years 6 months | 5 years 6 months |
Weighted-average dividend yield (as a percent) | 1.11% | 1.06% | 1.00% |
Weighted-average risk free interest rate (as a percent) | 1.20% | 1.60% | 1.70% |
Stock appreciation rights |  |  |  |
Stock-based compensation |  |  |  |
Stock-based compensation expense | $ 1,851,000 | $ 1,687,000 | $ 1,422,000 |
Key assumptions used in Black-Scholes model to determine the fair value of each stock option and SAR |  |  |  |
Weighted-average expected volatility (as a percent) | 41.10% | 36.90% | 36.60% |
Weighted-average expected life (in years) | 5 years 9 months 18 days | 5 years 4 months 24 days | 5 years 3 months 18 days |
Weighted-average dividend yield (as a percent) | 1.11% | 1.00% | 1.00% |
Weighted-average risk free interest rate (as a percent) | 1.30% | 1.60% | 1.70% |
Restricted stock |  |  |  |
Stock-based compensation |  |  |  |
Stock-based compensation expense | $ 3,840,000 | $ 3,686,000 | $ 2,511,000 |
Performance stock |  |  |  |
Stock-based compensation |  |  |  |
Stock-based compensation expense | $ 3,899,000 | $ 4,212,000 | $ 791,000 |
Minimum |  |  |  |
Stock-based compensation |  |  |  |
Continuous service period for awards to vest | 1 year |  |  |
Maximum |  |  |  |
Stock-based compensation |  |  |  |
Continuous service period for awards to vest | 3 years |  |  |

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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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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://www.xbrl.org/2003/role/presentationRef -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=6415400&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://www.xbrl.org/2003/role/presentationRef -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=6415400&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://www.xbrl.org/2003/role/presentationRef -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=6415400&loc=d3e5070-113901 + Details
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- Definition Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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