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Earnings Per Share (Tables) | 9 Months Ended
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Sep. 28, 2013
Earnings Per Share [Abstract] |
Computation of Basic and Diluted Earnings Per Common Share | The shares used in the computation of the company’s basic and diluted earnings per common share are as follows:
|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 28, |  |  | September 29, |  |  | September 28, |  |  | September 29, |
|  | 2013 |  |  | 2012 |  |  | 2013 |  |  | 2012 |
Weighted-average common shares outstanding |  |  | 58,163,261 |  |  |  | 58,257,569 |  |  |  | 58,221,047 |  |  |  | 58,195,162 |
Dilutive effect of stock-based instruments |  |  | 837,840 |  |  |  | 600,067 |  |  |  | 848,938 |  |  |  | 619,474 |
Weighted-average common shares outstanding, assuming dilution |  |  | 59,001,101 |  |  |  | 58,857,636 |  |  |  | 59,069,985 |  |  |  | 58,814,636 |

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- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + 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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