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Earnings Per Share (Tables) | 6 Months Ended
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Jun. 15, 2013
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:
(In millions, except share and per share data) |  | 12 Weeks Ended |  |  | 24 weeks Ended |
|  | June 15, 2013 |  |  | June 16, 2012 |  |  | June 15, 2013 |  |  | June 16, 2012 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net earnings attributable to Wolverine World Wide, Inc. |  | $ | 17.9 |  |  | $ | 20.5 |  |  | $ | 47.7 |  |  | $ | 51.7 |
Adjustment for earnings allocated to non-vested restricted common stock |  |  | (0.3 | ) |  |  | (0.3 | ) |  |  | (0.9 | ) |  |  | (0.9 | )
Net earnings used in calculating basic earnings per share |  |  | 17.6 |  |  |  | 20.2 |  |  |  | 46.8 |  |  |  | 50.8 |
Adjustment for earnings reallocated from non-vested restricted common stock |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Net earnings used in calculating diluted earnings per share |  | $ | 17.6 |  |  | $ | 20.2 |  |  | $ | 46.8 |  |  | $ | 50.8 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average shares outstanding |  |  | 50,163,722 |  |  |  | 48,694,332 |  |  |  | 49,947,199 |  |  |  | 48,564,198 |
Adjustment for non-vested restricted common stock |  |  | (1,763,899 | ) |  |  | (1,396,931 | ) |  |  | (1,612,163 | ) |  |  | (1,386,317 | )
Shares used in calculating basic earnings per share |  |  | 48,399,823 |  |  |  | 47,297,401 |  |  |  | 48,335,036 |  |  |  | 47,177,881 |
Effect of dilutive stock options |  |  | 918,174 |  |  |  | 1,123,863 |  |  |  | 868,941 |  |  |  | 1,123,286 |
Shares used in calculating diluted earnings per share |  |  | 49,317,997 |  |  |  | 48,421,264 |  |  |  | 49,203,977 |  |  |  | 48,301,167 |
Net earnings per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 0.36 |  |  | $ | 0.43 |  |  | $ | 0.97 |  |  | $ | 1.08 |
Diluted |  | $ | 0.36 |  |  | $ | 0.42 |  |  | $ | 0.95 |  |  | $ | 1.05 |

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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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