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Earnings Per Share (Tables) | 6 Months Ended
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Jun. 30, 2024
Earnings Per Share [Abstract] |
Computations of basic and diluted loss per share for loss from continuing operations | The computations of basic and diluted earnings per share were as follows (in millions, except per share data):
| For the Three Months Ended June 30, |  | For the Six Months Ended June 30,
| 2024 |  | 2023 |  | 2024 |  | 2023
Net income | $ | 245.9 |  |  | $ | 217.2 |  |  | $ | 370.2 |  |  | $ | 315.2 |
Weighted-average shares outstanding – basic | 35.6 |  |  | 35.5 |  |  | 35.6 |  |  | 35.5 |
Add: Potential effect of dilutive securities attributable to stock-based payments | 0.2 |  |  | 0.1 |  |  | 0.2 |  |  | 0.1 |
Weighted-average shares outstanding – diluted | 35.8 |  |  | 35.6 |  |  | 35.8 |  |  | 35.6 |
Earnings per share – Basic: | $ | 6.91 |  |  | $ | 6.12 |  |  | $ | 10.40 |  |  | $ | 8.88 |
Earnings per share – Diluted: | $ | 6.87 |  |  | $ | 6.10 |  |  | $ | 10.34 |  |  | $ | 8.85 |
Stock appreciation rights were outstanding, but not included in the diluted loss per share calculation | The following stock appreciation rights and restricted stock units were outstanding but not included in the diluted earnings per share calculation as the assumed exercise of such rights would have been anti-dilutive (in millions, except for per share data):
| For the Three Months Ended June 30, |  | For the Six Months Ended June 30,
| 2024 |  | 2023 |  | 2024 |  | 2023
Weighted-average number of shares | — |  |  | 0.2 |  |  | — |  |  | 0.2 |

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-1 + Details
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-1 + Details
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