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Earnings Per Share | 12 Months Ended
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Dec. 31, 2015
Earnings Per Share [Abstract] |
Earnings Per Share |
8. | Earnings Per Share
Earnings per share is computed in accordance with ASC 260, Earnings per Share. Basic earnings per share is computed on the basis of weighted average outstanding common shares. Diluted earnings per share is computed on the basis of basic weighted average outstanding common shares adjusted for the dilutive effect of stock options and other outstanding dilutive securities. The following table reconciles the average share amounts used to compute both basic and diluted earnings per share (in thousands):
|  | Years Ended December 31, |
|  | 2015 |  |  | 2014 |  |  | 2013 |
Weighted average shares outstanding: |  |  |  |  |  |  |  |  |  |  |  |
Basic weighted average shares outstanding |  |  | 117,465 |  |  |  | 114,798 |  |  |  | 117,885 |
Add: Dilutive effect of stock options, restricted stock awards and other dilutive securities |  |  | 1,454 |  |  |  | 1,973 |  |  |  | 2,169 |
Diluted weighted average shares outstanding |  |  | 118,919 |  |  |  | 116,771 |  |  |  | 120,054 |
For the years ended December 31, 2015, 2014, and 2013, respectively, 3.7 million, 2.9 million and 4.5 million options to purchase shares, contingently issuable shares, and common stock warrants were excluded from the diluted net income per share computation as their effect would be anti-dilutive. Common stock outstanding as of December 31, 2015 and 2014 was 119,033,770 and 115,637,804, respectively.

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