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Earnings Per Share (Tables) | 3 Months Ended
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Mar. 31, 2018
Earnings Per Share [Abstract] |
Computation of Basic and Diluted Earnings Per Share | The following table sets forth the computation of basic and diluted earnings per share.
| Quarter Ended
(In millions, except per share data) | March 31, 2018 |  | April 1, 2017
Numerator: |  |  |
Net earnings attributable to Wolverine World Wide, Inc. | $ | 46.7 |  |  | $ | 16.7 |
Adjustment for earnings allocated to non-vested restricted common stock | (0.9 | ) |  | (0.4 | )
Net earnings used in calculating basic and diluted earnings per share | $ | 45.8 |  |  | $ | 16.3 |
Denominator: |  |  |
Weighted average shares outstanding | 95.7 |  |  | 97.0 |
Adjustment for non-vested restricted common stock | (2.0 | ) |  | (2.5 | )
Shares used in calculating basic earnings per share | 93.7 |  |  | 94.5 |
Effect of dilutive stock options | 1.9 |  |  | 1.5 |
Shares used in calculating diluted earnings per share | 95.6 |  |  | 96.0 |
Net earnings per share: |  |  |
Basic | $ | 0.49 |  |  | $ | 0.17 |
Diluted | $ | 0.48 |  |  | $ | 0.17 |

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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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