Stock-Based Compensation (Details Textual) - USD ($) $ in Millions	6 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Stock-Based Compensation (Textual) [Abstract]
Cash received from the exercise of capital stock option	$ 3.9	$ 19.1
Stock Option [Member]
Stock-Based Compensation (Textual) [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value	1.2	1.7
Total Intrinsic value of options exercised	1.8	4.8
Restricted Stock Units (RSUs) [Member]
Stock-Based Compensation (Textual) [Abstract]
Compensation expense related to time vesting and performance vesting restricted stock units	12.8	$ 11.0
Unrecognized compensation cost	$ 26.7
Unrecognized compensation costs, weighted average period	2 years 3 months

Stock based compensation.

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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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Amount of cash inflow from exercise of stock options granted under share-based compensation arrangement.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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