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Earnings per Common Share (Tables) | 3 Months Ended
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Mar. 31, 2020
Earnings Per Share [Abstract] |
Computation of Basic and Diluted Earnings per Share | The following table sets forth the computation of basic and diluted earnings per share for the three month period ended March 31, 2020 and 2019:
| Three Months Ended March 31,
| 2020 | 2019
Net income | $ | 29.3 |  | $ | 41.6 |
Weighted average common shares outstanding for basic earnings per share computation | 64,790,186 |  | 60,311,171 |
Dilutive effects of stock-based compensation | 146,921 |  | 286,899 |
Weighted average common shares outstanding for diluted earnings per common share computation | 64,937,107 |  | 60,598,070 |
Basic earnings per common share | $ | 0.45 |  | $ | 0.69 |
Diluted earnings per common share | $ | 0.45 |  | $ | 0.69 |
Anti-dilutive unvested time restricted stock | 113,468 |  | 121,452 |

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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=6371337&loc=d3e3550-109257 + Details
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