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Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2016
Earnings Per Share [Abstract] |
Reconciliation of Average Share Amounts used to Compute Both Basic and Diluted Earnings Per Share | The following table reconciles the average share amounts used to compute both basic and diluted earnings per share (in thousands):
|  | Years Ended December 31, |
|  | 2016 |  |  | 2015 |  |  | 2014 |
Weighted average shares outstanding: |  |  |  |  |  |  |  |  |  |  |  |
Basic weighted average shares outstanding |  |  | 117,533 |  |  |  | 117,465 |  |  |  | 114,798 |
Add: Dilutive effect of stock options |  |  | 1,314 |  |  |  | 1,454 |  |  |  | 1,973 |
Diluted weighted average shares outstanding |  |  | 118,847 |  |  |  | 118,919 |  |  |  | 116,771 |

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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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