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Weighted-Average Shares (Tables) | 9 Months Ended
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Sep. 30, 2012
Calculation of Weighted Average Shares | Weighted-average shares were calculated as follows (in thousands):
|  | Three-months Ended |  |  | Nine-months Ended |
|  | September 30, 2012 |  |  | October 2, 2011 |  |  | September 30, 2012 |  |  | October 2, 2011 |
Basic weighted-average common shares outstanding |  |  | 42,912 |  |  |  | 42,128 |  |  |  | 42,777 |  |  |  | 41,765 |
Effect of dilutive stock options |  |  | 717 |  |  |  | 848 |  |  |  | 833 |  |  |  | 917 |
Weighted-average common and common-equivalent shares outstanding |  |  | 43,629 |  |  |  | 42,976 |  |  |  | 43,610 |  |  |  | 42,682 |

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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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