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EARNINGS PER SHARE (Tables) | 6 Months Ended
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Jun. 30, 2023
Earnings Per Share [Abstract] |
Calculation of earnings per share | The following table sets forth the calculation of EPS (in millions, except share and per share data):
|  | Three Months Ended June 30, |  | Six Months Ended June 30,
|  | 2023 |  | 2022 |  | 2023 |  | 2022
Weighted average basic common shares outstanding |  | 13,777,225 |  |  | 15,956,258 |  |  | 13,819,024 |  |  | 16,241,221 |
Dilutive effect of stock-based awards and employee stock purchases |  | 40,058 |  |  | 56,024 |  |  | 46,711 |  |  | 56,143 |
Weighted average dilutive common shares outstanding |  | 13,817,283 |  |  | 16,012,282 |  |  | 13,865,736 |  |  | 16,297,364 |
Basic: |  |  |  |  |  |  |  |
Net income |  | $ | 170.5 |  |  | $ | 195.9 |  |  | $ | 329.0 |  |  | $ | 398.9 |
Less: Earnings allocated to participating securities from continuing operations |  | 4.2 |  |  | 5.5 |  |  | 8.2 |  |  | 11.3 |
Less: Earnings (loss) allocated to participating securities from discontinued operations |  | — |  |  | (0.1) |  |  | — |  |  | — |
Net income available to basic common shares |  | $ | 166.4 |  |  | $ | 190.6 |  |  | $ | 320.7 |  |  | $ | 387.6 |
Basic earnings per common share |  | $ | 12.08 |  |  | $ | 11.94 |  |  | $ | 23.21 |  |  | $ | 23.87 |
Diluted: |  |  |  |  |  |  |  |
Net income |  | $ | 170.5 |  |  | $ | 195.9 |  |  | $ | 329.0 |  |  | $ | 398.9 |
Less: Earnings allocated to participating securities from continuing operations |  | 4.1 |  |  | 5.4 |  |  | 8.2 |  |  | 11.3 |
Less: Earnings (loss) allocated to participating securities from discontinued operations |  | — |  |  | (0.1) |  |  | — |  |  | — |
Net income available to diluted common shares |  | $ | 166.4 |  |  | $ | 190.6 |  |  | $ | 320.8 |  |  | $ | 387.6 |
Diluted earnings per common share |  | $ | 12.04 |  |  | $ | 11.90 |  |  | $ | 23.13 |  |  | $ | 23.79 |

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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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