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Stock-Based Compensation - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
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Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2019
Stock-Based Compensation (Additional Textual) [Abstract] |  |  |
Maximum period of achievement of performance goals to earn performance units | 3 years |  |
International Plans [Member] |  |  |
Stock-Based Compensation (Textual) [Abstract] |  |  |
Rate of Future Salary Increase | 1.50% | 1.50% |
Minimum [Member] | International Plans [Member] |  |  |
Stock-Based Compensation (Textual) [Abstract] |  |  |
Rate of Future Salary Increase | 300.00% |  | 1.80%
Stock Option [Member] |  |  |
Stock-Based Compensation (Textual) [Abstract] |  |  |
Tax benefits resulting from stock-based compensation deductions in excess of amounts reported for financial reporting purposes | $ 0.7 |  | $ 1.3
Cash received from the exercise of capital stock option | 6.6 | $ 0.9 | 4.8
Share-based Payment Arrangement, Exercise of Option, Tax Benefit | 0.6 |  | 0.5
Total Intrinsic value of options exercised | 2.4 | 0.3 | 2.4
Restricted Stock Units - Time Vesting Performance Vesting [Member] |  |  |
Stock-Based Compensation (Textual) [Abstract] |  |  |
Compensation expense related to stock option | 23.9 | $ 15.3 | $ 21.9
Unrecognized compensation cost | $ 22.7 |  |
Unrecognized compensation costs, weighted average period | 1 year 9 months 18 days |  |
Performance Shares [Member] |  |  |
Stock-Based Compensation (Textual) [Abstract] |  |  |
Performance metric adjustments, net | (100,000) |  |

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