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Summary of Significant Accounting Policies (Tables) | 6 Months Ended
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Jun. 29, 2013
Accounting Policies [Abstract] |
Net Income per Common Share |
| Net Income per Common Share (in thousands, except per share data)
| Three Months Ended
|  |  | June 29, 2013 |  |  |  |  |  | June 30, 2012 |  |
| Income |  | Shares |  | Per Share |  | Income |  | Shares |  | Per Share
Basic: |  |  |  |  |  |  |  |  |  |  |
Net Income | $ | 26,418 |  |  | 118,196 |  |  | $ | 0.22 |  |  | $ | 36,225 |  |  | 117,613 |  |  | $ | 0.31 |
Diluted: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Add: Option shares in the money and dilutive effect of non-vested stock |  |  |  | 690 |  |  |  |  |  |  |  |  | 867 |  |  |  |
Less: Pro forma treasury shares |  |  |  | (298 | ) |  |  |  |  |  |  |  | (339 | ) |  |  |
Diluted: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income | $ | 26,418 |  |  | 118,588 |  |  | $ | 0.22 |  |  | $ | 36,225 |  |  | 118,141 |  |  | $ | 0.31 |
| Net Income per Common Share (in thousands, except per share data)
| Six Months Ended
|  |  | June 29, 2013 |  |  |  |  |  | June 30, 2012 |  |
| Income |  | Shares |  | Per Share |  | Income |  | Shares |  | Per Share
Basic: |  |  |  |  |  |  |  |  |  |  |
Net Income | $ | 58,823 |  |  | 118,056 |  |  | $ | 0.50 |  |  | $ | 64,796 |  |  | 117,458 |  |  | $ | 0.55 |
Diluted: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Add: Option shares in the money and dilutive effect of non-vested stock |  |  |  | 688 |  |  |  |  |  |  |  |  | 870 |  |  |  |
Less: Pro forma treasury shares |  |  |  | (304 | ) |  |  |  |  |  |  |  | (343 | ) |  |  |
Diluted: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income | $ | 58,823 |  |  | 118,440 |  |  | $ | 0.50 |  |  | $ | 64,796 |  |  | 117,985 |  |  | $ | 0.55 |

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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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