SHARE-BASED COMPENSATION PLANS (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
Sep. 30, 2018	Sep. 30, 2017
Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized share-based compensation expense	$ 35.3
Weighted-average period for unrecognized share-based compensation (in years)	3 years 8 months 1 day
Series A Preferred Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized share-based compensation expense	$ 5.0
Weighted-average period for unrecognized share-based compensation (in years)	3 years 3 months
Restricted and Other Share Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized share-based compensation expense	$ 104.0
Weighted-average period for unrecognized share-based compensation (in years)	3 years 9 months 26 days
Restricted Share Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	$ 4.1	$ 5.9
Options granted (in shares)	5,000,000
Weighted average fair value at grant date (in dollars per share)	$ 12.04
Non-Qualified Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	$ 2.4	3.3
Options granted (in shares)	0
Series A Preferred Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	$ (0.1)	(1.1)
Options granted (in shares)	0
Selling, general and administrative expenses
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	$ 6.4	$ 8.1

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.

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Unrecognized cost of unvested share-based compensation awards.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Gross number of share options (or share units) granted during the period.

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