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Earnings Per Share (Tables) | 9 Months Ended
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Sep. 07, 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 |  | 36 Weeks Ended
| September 7, 2013 |  | September 8, 2012 |  | September 7, 2013 |  | September 8, 2012
Numerator: |  |  |  |  |  |  |
Net earnings attributable to Wolverine World Wide, Inc. | $ | 54.4 |  |  | $ | 32.7 |  |  | $ | 102.1 |  |  | $ | 84.4 |
Adjustment for earnings allocated to non-vested restricted common stock | (1.1 | ) |  | (0.5 | ) |  | (2.0 | ) |  | (1.5 | )
Net earnings used in calculating basic earnings per share | 53.3 |  |  | 32.2 |  |  | 100.1 |  |  | 82.9 |
Adjustment for earnings reallocated from non-vested restricted common stock | 0.1 |  |  | — |  |  | 0.1 |  |  | 0.1 |
Net earnings used in calculating diluted earnings per share | $ | 53.4 |  |  | $ | 32.2 |  |  | $ | 100.2 |  |  | $ | 83.0 |
Denominator: |  |  |  |  |  |  |
Weighted average shares outstanding | 100,474,793 |  |  | 97,743,844 |  |  | 100,087,863 |  |  | 97,333,545 |
Adjustment for non-vested restricted common stock | (3,391,901) |  |  | (2,758,969) |  |  | (3,280,184) |  |  | (2,784,802) |
Shares used in calculating basic earnings per share | 97,082,892 |  |  | 94,984,875 |  |  | 96,807,679 |  |  | 94,548,743 |
Effect of dilutive stock options | 2,121,186 |  |  | 2,244,358 |  |  | 1,852,797 |  |  | 2,252,554 |
Shares used in calculating diluted earnings per share | 99,204,078 |  |  | 97,229,233 |  |  | 98,660,476 |  |  | 96,801,297 |
Net earnings per share: |  |  |  |  |  |  |
Basic | $ | 0.55 |  |  | $ | 0.34 |  |  | $ | 1.03 |  |  | $ | 0.88 |
Diluted | $ | 0.54 |  |  | $ | 0.33 |  |  | $ | 1.02 |  |  | $ | 0.86 |

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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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