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Net Earnings (Loss) Per Common Share (Tables) | 3 Months Ended
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Mar. 31, 2014
Earnings Per Share [Abstract] |
Calculation of Basic and Diluted Net Earnings Per Common Share | The following table shows the calculation of basic and diluted net earnings per common share under the two-class method:
|  | Three Months Ended March 31, |
|  | 2014 |  |  | 2013 |
Basic Net Earnings Per Common Share: |  |  |  |  |  |  |  |
Numerator |  |  |  |  |  |  |  |
Net earnings available to common stockholders |  | $ | 71.8 |  |  | $ | 2.7 |
Distributed and allocated undistributed net earnings to non-vested restricted stockholders |  |  | (0.4 | ) |  |  | (0.1 | )
Distributed and allocated undistributed net earnings to common stockholders |  |  | 71.4 |  |  |  | 2.6 |
Distributed net earnings — dividends paid to common stockholders |  |  | (27.7 | ) |  |  | (25.3 | )
Allocation of undistributed net earnings to common stockholders |  | $ | 43.7 |  |  | $ | (22.7 | )
Denominator |  |  |  |  |  |  |  |
Weighted average number of common shares outstanding — basic |  |  | 206.7 |  |  |  | 193.8 |
Basic net earnings per common share: |  |  |  |  |  |  |  |
Distributed net earnings to common stockholders |  | $ | 0.13 |  |  | $ | 0.13 |
Allocated undistributed net earnings (loss) to common stockholders |  |  | 0.22 |  |  |  | (0.12 | )
Basic net earnings per common share: |  | $ | 0.35 |  |  | $ | 0.01 |
Diluted Net Earnings Per Common Share: |  |  |  |  |  |  |  |
Numerator |  |  |  |  |  |  |  |
Distributed and allocated undistributed net earnings to common stockholders |  | $ | 71.4 |  |  | $ | 2.6 |
Add: Allocated undistributed net earnings to non-vested restricted stockholders |  |  | 0.3 |  |  |  | — |
Less: Undistributed net earnings reallocated to non-vested restricted stockholders |  |  | (0.3 | ) |  |  | — |
Net earnings available to common stockholders — diluted |  | $ | 71.4 |  |  | $ | 2.6 |
Denominator |  |  |  |  |  |  |  |
Weighted average number of common shares outstanding — basic |  |  | 206.7 |  |  |  | 193.8 |
Effect of assumed issuance of Settlement agreement shares (1) |  |  | 6.6 |  |  |  | 18.0 |
Effect of non-vested restricted stock units |  |  | 1.2 |  |  |  | 0.9 |
Weighted average number of common shares outstanding — diluted |  |  | 214.5 |  |  |  | 212.7 |
Diluted net earnings per common share |  | $ | 0.33 |  |  | $ | 0.01 |
(1) | The shares included above represent the weighted average number of shares from January 1, 2014 through February 3, 2014. The weighted average number of shares from February 3, 2014 through March 31, 2014 are included in the weighted average number of common shares outstanding-basic since they were issued on February 3, 2014 in connection with the Settlement agreement.

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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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