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Earnings Per Share (Tables) | 6 Months Ended
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Jul. 01, 2018
Earnings (Loss) Per Share (Thousands of Dollars and Shares Except Per Share Data) [Abstract] |
Earnings (Loss) Per Share |
| 2018 |  | 2017
Quarter | Basic |  | Diluted |  | Basic |  | Diluted
Net earnings | $ | 60,299 |  |  | 60,299 |  |  | 67,723 |  |  | 67,723
Average shares outstanding |  | 125,711 |  |  | 125,711 |  |  | 125,263 |  |  | 125,263
Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |
Options and other share-based awards |  | - |  |  | 624 |  |  | - |  |  | 2,104
Equivalent Shares |  | 125,711 |  |  | 126,335 |  |  | 125,263 |  |  | 127,367
Net earnings per common share | $ | 0.48 |  |  | 0.48 |  |  | 0.54 |  |  | 0.53
| 2018 |  | 2017
Six Months | Basic |  | Diluted |  | Basic |  | Diluted
Net earnings (loss) | $ | (52,193) |  |  | (52,193) |  |  | 136,322 |  |  | 136,322
Average shares outstanding |  | 125,392 |  |  | 125,392 |  |  | 125,221 |  |  | 125,221
Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |
Options and other share-based awards |  | - |  |  | - |  |  | - |  |  | 2,075
Equivalent Shares |  | 125,392 |  |  | 125,392 |  |  | 125,221 |  |  | 127,296
Net earnings (loss) per common share | $ | (0.42) |  |  | (0.42) |  |  | 1.09 |  |  | 1.07

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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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