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Net Earnings Per Share | 3 Months Ended
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Mar. 31, 2019
Earnings Per Share [Abstract] |
Net Earnings Per Share | Net Earnings Per Share The calculations of net earnings per share – basic and net earnings per share – diluted were as follows:
|  |  | 3 Months Ended
|  |  | March 31,
|  |  | 2019 |  | 2018
Net earnings available to common shareholders |  |  | $ | 53.5 |  |  | $ | 97.0 |
Weighted-average common shares outstanding (in millions) |  |  |  |  |
Weighted-average common shares outstanding - basic |  |  | 60.6 |  |  | 66.3 |
Effect of dilutive securities - stock options |  |  | — |  |  | 0.2 |
Effect of other share-based awards |  |  | 0.4 |  |  | 0.4 |
Weighted-average common shares outstanding - diluted |  |  | 61.0 |  |  | 66.9 |
Net earnings per share - basic |  |  | $ | 0.88 |  |  | $ | 1.46 |
Net earnings per share - diluted |  |  | $ | 0.88 |  |  | $ | 1.45 |
There were 0.6 million and 0.1 million share-based awards excluded from the calculation of net earnings per share – diluted for the three months ended March 31, 2019 and 2018, respectively, because their impact was anti-dilutive.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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