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Earnings Per Share (Tables) | 12 Months Ended
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Dec. 30, 2018
Earnings Per Share [Abstract] |
Common Stock Reconciliation of Basic and Diluted Earnings Per Share | The reconciliation of basic earnings per share on common stock for the year-end 2018, 2017 and 2016 follows (in millions of dollars except per share data).
| 2018 |  | 2017 |  | 2016
Net earnings | $ | 22.9 |  |  | $ | 71.6 |  |  | $ | 120.8 |
Less: Earnings allocated to participating securities | (0.2 | ) |  | (1.1 | ) |  | (2.6 | )
Net earnings available to common shareholders | $ | 22.7 |  |  | $ | 70.5 |  |  | $ | 118.2 |
Average common shares outstanding (millions): |  |  |  |  |
Basic | 38.8 |  |  | 38.3 |  |  | 38.1 |
Dilutive share awards | 0.3 |  |  | 0.7 |  |  | 0.3 |
Diluted | 39.1 |  |  | 39.0 |  |  | 38.4 |
Basic earnings per share | $ | 0.59 |  |  | $ | 1.84 |  |  | $ | 3.10 |
Diluted earnings per share | $ | 0.58 |  |  | $ | 1.81 |  |  | $ | 3.08 |

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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://fasb.org/us-gaap/role/ref/legacyRef -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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