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Earnings Per Share (Tables) | 9 Months Ended
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Sep. 28, 2019
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 |  | Year-To-Date Ended
(In millions, except per share data) | September 28, 2019 |  | September 29, 2018 |  | September 28, 2019 |  | September 29, 2018
Numerator: |  |  |  |  |  |  |
Net earnings attributable to Wolverine World Wide, Inc. | $ | 48.7 |  |  | $ | 58.8 |  |  | $ | 129.4 |  |  | $ | 160.8 |
Adjustment for earnings allocated to non-vested restricted common stock | (1.0 | ) |  | (1.2 | ) |  | (2.6 | ) |  | (3.4 | )
Net earnings used in calculating basic earnings per share | 47.7 |  |  | 57.6 |  |  | 126.8 |  |  | 157.4 |
Adjustment for earnings reallocated from non-vested restricted common stock | — |  |  | — |  |  | 0.1 |  |  | 0.1 |
Net earnings used in calculating diluted earnings per share | $ | 47.7 |  |  | $ | 57.6 |  |  | $ | 126.9 |  |  | $ | 157.5 |
Denominator: |  |  |  |  |  |  |
Weighted average shares outstanding | 83.5 |  |  | 94.9 |  |  | 87.3 |  |  | 95.2 |
Adjustment for non-vested restricted common stock | (0.5) |  |  | (1.7) |  |  | (0.7) |  |  | (1.8) |
Shares used in calculating basic earnings per share | 83.0 |  |  | 93.2 |  |  | 86.6 |  |  | 93.4 |
Effect of dilutive stock options | 0.9 |  |  | 2.1 |  |  | 1.4 |  |  | 2.0 |
Shares used in calculating diluted earnings per share | 83.9 |  |  | 95.3 |  |  | 88.0 |  |  | 95.4 |
Net earnings per share: |  |  |  |  |  |  |
Basic | $ | 0.57 |  |  | $ | 0.62 |  |  | $ | 1.46 |  |  | $ | 1.69 |
Diluted | 0.57 |  |  | 0.60 |  |  | 1.44 |  |  | 1.65 |

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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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