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Stock-Based Compensation - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
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Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2023
Stock-Based Compensation (Textual) [Abstract] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Other | 107,780 |  |
International Plans [Member] |  |  |
Stock-Based Compensation (Textual) [Abstract] |  |  |
Rate of Future Salary Increase | 300.00% |  | 1.80%
Minimum [Member] | International Plans [Member] |  |  |
Stock-Based Compensation (Textual) [Abstract] |  |  |
Rate of Future Salary Increase | 1.50% | 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 | $ 0.8 | $ 1.5 | $ 0.8
Cash received from the exercise of capital stock option | 0.0 |  |
Share-based Payment Arrangement, Exercise of Option, Tax Benefit | 0.0 |  |
Total Intrinsic value of options exercised | 0.0 |  |
Share-Based Payment Arrangement, Expense, Tax Benefit | (0.8) | (1.5) | (0.8)
Restricted Stock Units - Time Vesting Performance Vesting [Member] |  |  |
Stock-Based Compensation (Textual) [Abstract] |  |  |
Compensation expense related to stock option | 21.0 | $ 23.4 | $ 23.3
Unrecognized compensation cost | $ 21.0 |  |
Unrecognized compensation costs, weighted average period | 1 year 8 months 12 days |  |
Performance Shares [Member] |  |  |
Stock-Based Compensation (Textual) [Abstract] |  |  |
Performance metric adjustments, net | (107,780) |  |

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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section S45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479983/718-10-S45-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479830/718-10-S99-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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