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NET INCOME PER COMMON SHARE (Tables) | 12 Months Ended
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Dec. 31, 2023
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted | The following table presents the computation of basic and diluted net income per share under the two-class method for the years ended December 31, 2023, 2022 and 2021 (in millions, except for per share amounts):
|  | Year Ended December 31,
|  | 2023 |  | 2022 |  | 2021
Net income from continuing operations |  | $ | 70.7 |  |  | $ | 78.1 |  |  | $ | 70.1 |
Less: Distributed net income available to participating securities |  | (0.2) |  |  | (0.1) |  |  | (0.3) |
Less: Undistributed net income available to participating securities |  | (0.2) |  |  | (0.2) |  |  | 0.0 |
Numerator for basic net income per share: |  |  |  |  |  |
Undistributed and distributed net income available to common shareholders |  | $ | 70.3 |  |  | $ | 77.8 |  |  | $ | 69.8 |
Add: Undistributed net income allocated to participating securities |  | 0.2 |  |  | 0.2 |  |  | 0.0 |
Less: Undistributed net income reallocated to participating securities |  | (0.2) |  |  | (0.2) |  |  | 0.0 |
Numerator for diluted net income per share: |  |  |  |  |  |
Undistributed and distributed net income available to common shareholders |  | $ | 70.3 |  |  | $ | 77.8 |  |  | $ | 69.8 |
Denominator: |  |  |  |  |  |
Weighted average shares outstanding for basic net income per share |  | 38.1 |  |  | 38.0 |  |  | 37.8
Effect of dilutive securities |  | 0.1 |  |  | 0.1 |  |  | 0.2
Weighted average shares outstanding for diluted net income per share |  | 38.2 |  |  | 38.1 |  |  | 38.0 |
Net income per share from continuing operations: |  |  |  |  |  |
Basic |  | $ | 1.85 |  |  | $ | 2.05 |  |  | $ | 1.85 |
Diluted |  | $ | 1.84 |  |  | $ | 2.04 |  |  | $ | 1.84 |
Net income from discontinued operations |  | $ | 0.0 |  |  | $ | 0.7 |  |  | $ | 33.2 |
Less: Distributed net income available to participating securities |  | $ | 0.0 |  |  | $ | 0.0 |  |  | $ | 0.0 |
Less: Undistributed net income available to participating securities |  | $ | 0.0 |  |  | $ | 0.0 |  |  | $ | (0.2) |
Numerator for basic net income per share: |  |  |  |  |  |
Undistributed and distributed net income available to common shareholders |  | $ | 0.0 |  |  | $ | 0.7 |  |  | $ | 33.0 |
Add: Undistributed net income allocated to participating securities |  | $ | 0.0 |  |  | $ | 0.0 |  |  | $ | 0.2 |
Less: Undistributed net income reallocated to participating securities |  | $ | 0.0 |  |  | $ | 0.0 |  |  | $ | (0.2) |
Numerator for diluted net income per share: |  |  |  |  |  |
Undistributed and distributed net income available to common shareholders |  | $ | 0.0 |  |  | $ | 0.7 |  |  | $ | 33.0 |
Net income per share from discontinued operations: |  |  |  |  |  |
Basic |  | $ | 0.00 |  |  | $ | 0.02 |  |  | $ | 0.88 |
Diluted |  | $ | 0.00 |  |  | $ | 0.02 |  |  | $ | 0.87 |
Net income per share: |  |  |  |  |  |
Basic |  | $ | 1.85 |  |  | $ | 2.07 |  |  | $ | 2.73 |
Diluted |  | $ | 1.84 |  |  | $ | 2.06 |  |  | $ | 2.71 |
Potentially dilutive securities |  | 0.2 |  |  | 0.1 |  |  | 0.1 |

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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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