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Share-Based Compensation - Schedule of Share-Based Payment Arrangement Activity Expensed (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2026 | Jun. 30, 2025 | Jun. 30, 2026 | Jun. 30, 2025
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |
Share-based compensation expense, before tax | $ 6.0 | $ 5.4 | $ 12.4 | $ 11.3
Income tax benefit | (1.4) | (1.3) | (3.0) | (2.7)
Share-based compensation expense, after tax | 4.6 | 4.1 | 9.4 | 8.6
Restricted stock units |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |
Share-based compensation expense, before tax | 3.0 | 2.3 | 6.0 | 4.4
Performance based restricted share unit awards |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |
Share-based compensation expense, before tax | $ 3.0 | $ 3.1 | $ 6.4 | $ 6.9

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