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Income Per Common Share Computations (Tables) | 3 Months Ended
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Mar. 31, 2016
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted |
| Three Months Ended March 31,
(in millions, except per share data) | 2016 |  | 2015
Numerator for basic income (loss) per common share: |  |  |
Net income (loss) | $ | 2.8 |  |  | $ | (1.6 | )
Net income (loss) allocated to participating securities | (0.1 | ) |  | — |
Numerator for basic income (loss) per common share | $ | 2.7 |  |  | $ | (1.6 | )
Numerator for diluted income (loss) per common share | $ | 2.8 |  |  | $ | (1.6 | )
Denominator for basic and diluted net income (loss) per common share: |  |  |
Basic | 16.5 |  |  | 17.3 |
Plus dilutive effect of stock options and restricted stock | 0.2 |  |  | — |
Plus dilutive effect of participating securities | 0.3 |  |  | — |
Diluted | 17.0 |  |  | 17.3 |
Income (loss) per common share: |  |  |
Basic | $ | 0.17 |  |  | $ | (0.09 | )
Diluted | $ | 0.16 |  |  | $ | (0.09 | )

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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/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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