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QUARTERLY FINANCIAL DATA (UNAUDITED) | 12 Months Ended
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Dec. 31, 2024
Quarterly Financial Data [Abstract] |
QUARTERLY FINANCIAL DATA (UNAUDITED) | QUARTERLY FINANCIAL DATA (UNAUDITED) We compute earnings per common share for each quarter independently of earnings per share for the year. The sum of the quarterly earnings per share may not equal the earnings per share for the year because of: (i) transactions affecting the weighted average number of shares outstanding in each quarter; and (ii) the uneven distribution of earnings during the year. 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 The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 270 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Publisher FASB -URI https://asc.fasb.org/1943274/2147482964/270-10-50-1B Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 270 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/270/tableOfContent + Details
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