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Stockholders' Equity (Tables) | 9 Months Ended
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Sep. 30, 2017
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Reconciliation of Basic to Diluted Weighted Average Shares | The reconciliation of basic to diluted weighted average shares outstanding is as follows:
| Quarter Ended |  | Nine Months Ended
| September 30, 2017 |  | October 1, 2016 |  | September 30, 2017 |  | October 1, 2016
Basic weighted average shares outstanding | 366,083 |  |  | 379,368 |  |  | 368,885 |  |  | 382,235 |
Effect of potentially dilutive securities: |  |  |  |  |  |  |
Stock options | 1,541 |  |  | 1,890 |  |  | 1,591 |  |  | 2,016 |
Restricted stock units | 535 |  |  | 1,293 |  |  | 470 |  |  | 1,210 |
Employee stock purchase plan and other | 1 |  |  | 7 |  |  | 1 |  |  | 17 |
Diluted weighted average shares outstanding | 368,160 |  |  | 382,558 |  |  | 370,947 |  |  | 385,478 |

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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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