Stock-Based Compensation (Details Textual) - USD ($) $ in Millions	9 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Stock-Based Compensation (Textual) [Abstract]
Cash received from the exercise of capital stock option	$ 0.7	$ 4.2
Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Excess Tax Benefit from Share-based Compensation, Operating Activities	0.2	1.3
Stock-Based Compensation (Textual) [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value		1.2
Total Intrinsic value of options exercised	0.3	1.9
Restricted Stock Units (RSUs) [Member]
Stock-Based Compensation (Textual) [Abstract]
Compensation expense related to time vesting and performance vesting restricted stock units	13.7	$ 18.0
Unrecognized compensation cost	$ 22.2
Unrecognized compensation costs, weighted average period	2 years

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 outflow for realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.

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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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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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