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Earnings Per Share (Tables) | 9 Months Ended
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Sep. 30, 2024
Earnings Per Share [Abstract] |
Schedule of Computation of Basic and Diluted Earnings Per Share | The following table sets forth the computation of basic and diluted earnings per share:
(Dollars and shares in millions, except per share amounts) | Three Months Ended |  | Nine Months Ended
September 30, 2024 |  | September 30, 2023 |  | September 30, 2024 |  | September 30, 2023
Numerator: |  |  |  |  |  |  |
Net income | $ | 10.7 |  |  | $ | 19.0 |  |  | $ | 26.6 |  |  | $ | 33.4 |
Denominator: |  |  |  |  |  |  |
Weighted-average shares outstanding - basic | 18.6 |  |  | 18.6 |  |  | 18.6 |  |  | 18.6 |
Effect of dilutive shares | — |  |  | 0.1 |  |  | — |  |  | 0.1 |
Weighted-average shares outstanding - diluted | 18.6 |  |  | 18.7 |  |  | 18.6 |  |  | 18.7 |
Basic earnings per share | $ | 0.58 |  |  | $ | 1.02 |  |  | $ | 1.43 |  |  | $ | 1.79 |
Diluted earnings per share | $ | 0.58 |  |  | $ | 1.02 |  |  | $ | 1.43 |  |  | $ | 1.79 |

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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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