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Earnings per Share (Tables) | 12 Months Ended
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Dec. 31, 2016
Earnings Per Share [Abstract] |
Reconciliation of information used in computing basic and diluted earnings per share | Basic and diluted earnings per share was computed as follows:
| Years Ended December 31,
(in millions except share and per share amounts) | 2016 (1) |  | 2015 (1)(2) |  | 2014 (1)(2)
Earnings from continuing operations | $ | 19.1 |  |  | $ | 16.5 |  |  | $ | 119.6 |
Loss from discontinued operations, net | $ | (61.4 | ) |  | $ | (250.3 | ) |  | $ | (206.6 | )
Net loss | $ | (42.3 | ) |  | $ | (233.8 | ) |  | $ | (87.0 | )
Basic earnings (loss) per common share: |  |  |  |  |
Earnings from continuing operations | $ | 0.22 |  |  | $ | 0.19 |  |  | $ | 1.41 |
Loss from discontinued operations, net | $ | (0.70 | ) |  | $ | (2.88 | ) |  | $ | (2.43 | )
Net loss | $ | (0.48 | ) |  | $ | (2.69 | ) |  | $ | (1.02 | )
Weighted average shares outstanding | 88,667,098 |  |  | 86,802,828 |  |  | 85,046,042 |
Diluted earnings (loss) per common share: |  |  |  |  |
Earnings from continuing operations | $ | 0.21 |  |  | $ | 0.19 |  |  | $ | 1.40 |
Loss from discontinued operations, net | $ | (0.68 | ) |  | $ | (2.88 | ) |  | $ | (2.42 | )
Net loss | $ | (0.47 | ) |  | $ | (2.69 | ) |  | $ | (1.02 | )
Diluted weighted-average shares outstanding | 89,182,967 |  |  | 86,992,254 |  |  | 85,292,959 |

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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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