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Earnings Per Share | 9 Months Ended
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Sep. 30, 2025
Earnings Per Share [Abstract] |
Earnings Per Share | 8. Earnings Per Share The following are the computations for basic and diluted earnings per share (in millions, except share and per share amounts):
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Net Income |  | $ | 196.2 |  |  | $ | 180.3 |  |  | $ | 513.2 |  |  | $ | 528.3 |
Weighted-average common shares outstanding: |  |  |  |  |  |  |  |  |  |  |  |
Basic |  |  | 64,123,621 |  |  |  | 65,329,124 |  |  |  | 64,481,466 |  |  |  | 65,529,283 |
Dilutive equity-based compensation awards |  |  | 469,920 |  |  |  | 334,074 |  |  |  | 329,495 |  |  |  | 363,454 |
Diluted |  |  | 64,593,541 |  |  |  | 65,663,198 |  |  |  | 64,810,961 |  |  |  | 65,892,737 |
Earnings per common share: |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 3.06 |  |  | $ | 2.76 |  |  | $ | 7.96 |  |  | $ | 8.06 |
Diluted |  |  | 3.04 |  |  |  | 2.75 |  |  |  | 7.92 |  |  |  | 8.02 |
Shares not included in the computation of diluted earnings per share attributable to common shareholders because they would have been anti-dilutive were 6,366 and 35,419 for the three months ended September 30, 2025 and 2024, respectively, and 130,630 and 22,230 for the nine months ended September 30, 2025 and 2024, respectively.

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