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EARNINGS PER SHARE (Tables) | 9 Months Ended
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Sep. 30, 2023
EARNINGS PER SHARE |
Schedule of basic and diluted earnings per share | The computations for basic and diluted earnings per share for the three and nine months ended September 30, 2023 and 2022 are as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended September 30, 2023 | ​ | Nine Months Ended September 30, 2023
​ |  | ​ | ​ |  | Weighted |  | Per |  | ​ | ​ |  | Weighted |  | Per
​ | ​ | ​ | ​ | ​ | Average | ​ | Common | ​ | ​ | ​ | ​ | Average | ​ | Common
​ | ​ | Net | ​ | Common | ​ | Share | ​ | Net | ​ | Common | ​ | Share
(In millions, except per share amounts) | ​ | Income | ​ | Shares | ​ | Amount | ​ | Income | ​ | Shares | ​ | Amount
Basic | ​ | $ | 119.9 |  | 35.1 | ​ | $ | 3.42 | ​ | $ | 234.7 |  | 35.6 | ​ | $ | 6.59
Effect of Dilutive Securities | ​ | ​ | ​ |  | 0.2 | ​ | ​ | (0.02) | ​ | ​ | ​ |  | 0.2 | ​ | ​ | (0.03)
Diluted | ​ | $ | 119.9 | ​ | 35.3 | ​ | $ | 3.40 | ​ | $ | 234.7 | ​ | 35.8 | ​ | $ | 6.56
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended September 30, 2022 | ​ | Nine Months Ended September 30, 2022
​ | ​ | ​ | ​ |  | Weighted |  | Per |  | ​ | ​ |  | Weighted |  | Per
​ | ​ | ​ | ​ | ​ | Average | ​ | Common | ​ | ​ | ​ | ​ | Average | ​ | Common
​ | ​ | Net | ​ | Common | ​ | Share | ​ | Net | ​ | Common | ​ | Share
(In millions, except per share amounts) | ​ | Income | ​ | Shares | ​ | Amount | ​ | Income | ​ | Shares | ​ | Amount
Basic | ​ | $ | 266.0 |  | 38.3 | ​ | $ | 6.95 | ​ | $ | 985.9 |  | 39.7 | ​ | $ | 24.83
Effect of Dilutive Securities | ​ | ​ | ​ |  | 0.3 | ​ | ​ | (0.06) | ​ | ​ | ​ |  | 0.3 | ​ | ​ | (0.18)
Diluted | ​ | $ | 266.0 | ​ | 38.6 | ​ | $ | 6.89 | ​ | $ | 985.9 | ​ | 40.0 | ​ | $ | 24.65
​

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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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