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Earnings Per Share | 12 Months Ended
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Dec. 31, 2015
Earnings Per Share [Abstract] |
Earnings Per Share |
11. | Earnings Per Share
Set forth below is a reconciliation of the numerator and denominator for basic and diluted earnings per share calculations for the periods indicated:
Year ended December 31, |  | 2015 |  |  | 2014 |  |  | 2013 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 62,126 |  |  | $ | 38,628 |  |  | $ | 111,272 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |
Weighted average number of common shares outstanding – Basic |  |  | 18,696,659 |  |  |  | 19,367,928 |  |  |  | 19,327,394 |
Dilutive effect of options and restricted stock units outstanding under the Company's employee compensation plans |  |  | 668,420 |  |  |  | 469,480 |  |  |  | 613,324 |
Weighted average number of common shares outstanding – Diluted |  |  | 19,365,079 |  |  |  | 19,837,408 |  |  |  | 19,940,718 |
The dilutive effect of outstanding options and restricted stock units is calculated using the treasury stock method. There are no anti-dilutive stock options in 2015, 2014, and 2013 because the closing price of the Company's stock on December 31, 2015, 2014, and 2013 exceeded the strike price of all outstanding options on that date.

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