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Earnings (Loss) Per Share (Tables) | 3 Months Ended
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Apr. 04, 2021
Earnings Per Share [Abstract] |
Reconciliation of Basic and Diluted Earnings Per Share | The reconciliation of basic and diluted earnings (loss) per share on common stock for the first quarter 2021 and 2020 follows (in millions of dollars except per share data):
| First Quarter |  |
| 2021 |  | 2020 |  |  |  |
Net earnings (loss) | $ | 25.6 |  |  | $ | (153.2) |  |  |  |  |
Less: earnings allocated to participating securities | (0.2) |  |  | — |  |  |  |  |
Net earnings (loss) available to common shareholders | $ | 25.4 |  |  | $ | (153.2) |  |  |  |  |
Average shares outstanding (millions): |  |  |  |  |  |  |
Basic | 39.3 |  |  | 39.2 |  |  |  |  |
Dilutive share awards | 0.2 |  |  | — |  |  |  |  |
Diluted | 39.5 |  |  | 39.2 |  |  |  |  |
Basic earnings (loss) per share | $ | 0.65 |  |  | $ | (3.91) |  |  |  |  |
Diluted earnings (loss) per share | $ | 0.64 |  |  | $ | (3.91) |  |  |  |  |

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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/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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