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Net Income (Loss) per Common Share (Tables) | 9 Months Ended
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Sep. 30, 2021
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted | The following table presents the computation of basic and diluted net income (loss) per share under the two-class method for the three and nine months ended September 30, 2021 and 2020 (in millions, except for per share amounts):
|  | Three Months Ended September 30, |  | Nine Months Ended September 30,
|  | 2021 |  | 2020 |  | 2021 |  | 2020
Net income from continuing operations |  | $ | 23.2 |  |  | $ | 24.1 |  |  | $ | 49.8 |  |  | $ | 47.7 |
Less: Distributed net income available to participating securities |  | 0.0 |  |  | 0.0 |  |  | (0.1) |  |  | (0.3) |
Less: Undistributed net income available to participating securities |  | (0.1) |  |  | (0.1) |  |  | (0.1) |  |  | 0.0 |
Numerator for basic net income per share: |  |  |  |  |  |  |  |
Undistributed and distributed net income available to common shareholders |  | $ | 23.1 |  |  | $ | 24.0 |  |  | $ | 49.6 |  |  | $ | 47.4 |
Add: Undistributed net income allocated to participating securities |  | 0.1 |  |  | 0.1 |  |  | 0.1 |  |  | 0.0 |
Less: Undistributed net income reallocated to participating securities |  | (0.1) |  |  | (0.1) |  |  | (0.1) |  |  | 0.0 |
Numerator for diluted net income per share: |  |  |  |  |  |  |  |
Undistributed and distributed net income available to common shareholders |  | $ | 23.1 |  |  | $ | 24.0 |  |  | $ | 49.6 |  |  | $ | 47.4 |
Denominator: |  |  |  |  |  |  |  |
Weighted average shares outstanding for basic net income per share |  | 37.8 |  |  | 37.5 |  |  | 37.7 |  |  | 37.6 |
Effect of dilutive securities |  | 0.2 |  |  | 0.1 |  |  | 0.2 |  |  | 0.1 |
Weighted average shares outstanding for diluted net income per share |  | 38.0 |  |  | 37.6 |  |  | 37.9 |  |  | 37.7 |
Net income per share from continuing operations: |  |  |  |  |  |  |  |
Basic |  | $ | 0.61 |  |  | $ | 0.64 |  |  | $ | 1.31 |  |  | $ | 1.26 |
Diluted |  | $ | 0.61 |  |  | $ | 0.64 |  |  | $ | 1.31 |  |  | $ | 1.26 |
Net (loss) income from discontinued operations |  | $ | (0.1) |  |  | $ | 0.5 |  |  | $ | 10.5 |  |  | $ | 1.5 |
Less: Undistributed net income available to participating securities |  | 0.0 |  |  | 0.0 |  |  | (0.1) |  |  | 0.0 |
Numerator for basic net income per share: |  |  |  |  |  |  |  |
Undistributed and distributed net (loss) income available to common shareholders |  | $ | (0.1) |  |  | $ | 0.5 |  |  | $ | 10.4 |  |  | $ | 1.5 |
Add: Undistributed net income allocated to participating securities |  | 0.0 |  |  | 0.0 |  |  | 0.1 |  |  | 0.0 |
Less: Undistributed net income reallocated to participating securities |  | 0.0 |  |  | 0.0 |  |  | (0.1) |  |  | 0.0 |
Numerator for diluted net (loss) income per share: |  |  |  |  |  |  |  |
Undistributed and distributed net (loss) income available to common shareholders |  | $ | (0.1) |  |  | $ | 0.5 |  |  | $ | 10.4 |  |  | $ | 1.5 |
Net (loss) income per share from discontinued operations: |  |  |  |  |  |  |  |
Basic |  | $ | 0.00 |  |  | $ | 0.01 |  |  | $ | 0.28 |  |  | $ | 0.04 |
Diluted |  | $ | 0.00 |  |  | $ | 0.01 |  |  | $ | 0.28 |  |  | $ | 0.04 |
Net income per share: |  |  |  |  |  |  |  |
Basic |  | $ | 0.61 |  |  | $ | 0.65 |  |  | $ | 1.59 |  |  | $ | 1.30 |
Diluted |  | $ | 0.61 |  |  | $ | 0.65 |  |  | $ | 1.59 |  |  | $ | 1.30 |
Potentially dilutive securities |  | 0.1 |  |  | 0.5 |  |  | 0.1 |  |  | 0.5 |

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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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