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QUARTERLY FINANCIAL DATA (UNAUDITED) (Tables) | 12 Months Ended
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Dec. 31, 2024
Quarterly Financial Data [Abstract] |
Schedule of Quarterly Financial Information | Quarterly financial data (unaudited) were as follows (dollars in millions, except per share data):
| Three months ended
2024 | March 31 |  | June 30 |  | September 30 |  | December 31
Revenues | $ | 1,156.5 |  |  | $ | 1,066.2 |  |  | $ | 1,129.6 |  |  | $ | 1,097.2 |
Income before income taxes | $ | 146.2 |  |  | $ | 150.6 |  |  | $ | 11.0 |  |  | $ | 210.5 |
Income tax expense | 33.9 |  |  | 34.3 |  |  | 1.7 |  |  | 44.4 |
Net income | $ | 112.3 |  |  | $ | 116.3 |  |  | $ | 9.3 |  |  | $ | 166.1 |
Earnings per common share: |  |  |  |  |  |  |
Basic: |  |  |  |  |  |  |
Net income | $ | 1.03 |  |  | $ | 1.08 |  |  | $ | 0.09 |  |  | $ | 1.62 |
Diluted: |  |  |  |  |  |  |
Net income | $ | 1.01 |  |  | $ | 1.06 |  |  | $ | 0.09 |  |  | $ | 1.58 |
2023 | March 31 |  | June 30 |  | September 30 |  | December 31
Revenues | $ | 1,006.0 |  |  | $ | 1,022.8 |  |  | $ | 947.5 |  |  | $ | 1,170.5 |
(Loss) income before income taxes | $ | (1.0) |  |  | $ | 96.1 |  |  | $ | 215.6 |  |  | $ | 46.1 |
Income tax (benefit) expense | (0.2) |  |  | 22.4 |  |  | 48.3 |  |  | 9.8 |
Net (loss) income | $ | (0.8) |  |  | $ | 73.7 |  |  | $ | 167.3 |  |  | $ | 36.3 |
Earnings per common share: |  |  |  |  |  |  |
Basic: |  |  |  |  |  |  |
Net (loss) income | $ | (0.01) |  |  | $ | 0.64 |  |  | $ | 1.48 |  |  | $ | 0.33 |
Diluted: |  |  |  |  |  |  |
Net (loss) income | $ | (0.01) |  |  | $ | 0.64 |  |  | $ | 1.46 |  |  | $ | 0.32 |

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- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 10 -Topic 270 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482964/270-10-50-1 + Details
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