STOCK-BASED COMPENSATION - Schedule of Assumptions, Estimated Fair Value of SARs (Details)	12 Months Ended
Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Assumptions used in determining estimated fair value of stock based compensation awards
Risk-free interest rate (as a percent)	1.99%	1.71%
Expected term	6 years 6 months	6 years	6 years
Expected volatility (as a percent)	31.50%	30.00%
Expected dividend yield (as a percent)	0.00%	0.00%	0.00%
Minimum
Assumptions used in determining estimated fair value of stock based compensation awards
Risk-free interest rate (as a percent)			1.53%
Expected volatility (as a percent)			38.00%
Maximum
Assumptions used in determining estimated fair value of stock based compensation awards
Risk-free interest rate (as a percent)			1.84%
Expected volatility (as a percent)			44.00%

No definition available.

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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.

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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.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

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- Definition

Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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)(i)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: 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.D.2)
-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

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