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Net Income Per Common Share (Tables) | 9 Months Ended
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Sep. 27, 2019
Earnings Per Share [Abstract] |
Reconciliation Of Basic And Diluted Weighted Average Shares | The following table reconciles basic and dilutive weighted average common shares:
|  | Quarter Ended |  |  | Nine Months Ended |  |
|  | September 27, |  |  | September 28, |  |  | September 27, |  |  | September 28, |  |
|  | 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |  |
Basic weighted average common shares outstanding |  |  | 29,876,468 |  |  |  | 29,478,243 |  |  |  | 29,794,091 |  |  |  | 29,332,508 |  |
Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unvested restricted stock units and common stock subject to vesting requirements issued to employees and non-employees |  |  | 350,842 |  |  |  | 684,045 |  |  |  | 270,776 |  |  |  | 507,508 |  |
Common stock issuable upon the exercise of stock options and share appreciation rights (SARs) |  |  | 2,343,432 |  |  |  | 2,431,071 |  |  |  | 2,348,248 |  |  |  | 2,374,403 |  |
Dilutive weighted average common shares outstanding |  |  | 32,570,742 |  |  |  | 32,593,359 |  |  |  | 32,413,115 |  |  |  | 32,214,419 |  |

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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://fasb.org/us-gaap/role/ref/legacyRef -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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