Stock-Based Compensation (Details Textual) - USD ($) $ in Millions	6 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Stock-Based Compensation (Textual) [Abstract]
Cash received from the exercise of capital stock option	$ 3.1	$ 0.7
Stock Option [Member]
Stock-Based Compensation (Textual) [Abstract]
Unrecognized compensation cost	0.0
Total Intrinsic value of options exercised	1.6	0.3
Restricted Stock Units (RSUs) [Member]
Stock-Based Compensation (Textual) [Abstract]
Compensation expense related to time vesting and performance vesting restricted stock units	12.3	$ 13.4
Unrecognized compensation cost	$ 34.0
Unrecognized compensation costs, weighted average period	2 years 2 months 12 days

Stock based compensation.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of cash inflow from exercise of option under share-based payment 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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