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Earnings Per Share (Tables) | 12 Months Ended
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Jan. 01, 2017
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 2016, 2015 and 2014 follows (in millions of dollars except per share data).
| 2016 |  | 2015 |  | 2014
Net earnings | $ | 120.8 |  |  | $ | 53.8 |  |  | $ | 23.7 |
Less: Earnings allocated to participating securities | (2.6 | ) |  | (1.4 | ) |  | (0.7 | )
Net earnings available to common shareholders | $ | 118.2 |  |  | $ | 52.4 |  |  | $ | 23.0 |
Average common shares outstanding (millions): |  |  |  |  |
Basic | 38.1 |  |  | 37.8 |  |  | 37.5 |
Dilutive share awards | 0.3 |  |  | 0.1 |  |  | — |
Diluted | 38.4 |  |  | 37.9 |  |  | 37.5 |
Basic earnings per share | $ | 3.10 |  |  | $ | 1.39 |  |  | $ | 0.61 |
Diluted earnings per share | $ | 3.08 |  |  | $ | 1.39 |  |  | $ | 0.61 |

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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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