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EARNINGS PER SHARE (Tables) | 9 Months Ended
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Sep. 30, 2021
Earnings Per Share [Abstract] |
Schedule of calculation of EPS | The following table sets forth the calculation of EPS for the three and nine months ended September 30, 2021 and 2020 (in millions, except share and per share data):
|  | Three Months Ended September 30, |  | Nine Months Ended September 30,
|  | 2021 |  | 2020 |  | 2021 |  | 2020
Weighted average basic common shares outstanding |  | 17,753,957 |  |  | 17,776,888 |  |  | 17,753,042 |  |  | 17,770,619 |
Dilutive effect of stock-based compensation and employee stock purchases |  | 82,298 |  |  | 58,661 |  |  | 76,940 |  |  | 47,919 |
Weighted average dilutive common shares outstanding |  | 17,836,255 |  |  | 17,835,549 |  |  | 17,829,982 |  |  | 17,818,538 |
Basic: |  |  |  |  |  |  |  |
Net income |  | $ | 172.1 |  |  | $ | 126.4 |  |  | $ | 465.0 |  |  | $ | 186.4 |
Less: Earnings allocated to participating securities |  | 5.7 |  |  | 4.6 |  |  | 15.7 |  |  | 6.7 |
Net income available to basic common shares |  | $ | 166.4 |  |  | $ | 121.9 |  |  | $ | 449.4 |  |  | $ | 179.7 |
Basic earnings per common share |  | $ | 9.37 |  |  | $ | 6.86 |  |  | $ | 25.31 |  |  | $ | 10.11 |
Diluted: |  |  |  |  |  |  |  |
Net income |  | $ | 172.1 |  |  | $ | 126.4 |  |  | $ | 465.0 |  |  | $ | 186.4 |
Less: Earnings allocated to participating securities |  | 5.7 |  |  | 4.5 |  |  | 15.6 |  |  | 6.7 |
Net income available to diluted common shares |  | $ | 166.4 |  |  | $ | 121.9 |  |  | $ | 449.4 |  |  | $ | 179.7 |
Diluted earnings per common share |  | $ | 9.33 |  |  | $ | 6.83 |  |  | $ | 25.21 |  |  | $ | 10.08 |

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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