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Net Income Per Share | 9 Months Ended
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Sep. 30, 2016
Earnings Per Share [Abstract] |
Net Income Per Share |
16) | Net Income Per Share
The following table sets forth the computation of basic and diluted net income per share:
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2016 |  |  | 2015 |  |  | 2016 |  |  | 2015 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 32,549 |  |  | $ | 29,769 |  |  | $ | 59,322 |  |  | $ | 96,775 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares used in net income per common share – basic |  |  | 53,574,000 |  |  |  | 53,314,000 |  |  |  | 53,423,000 |  |  |  | 53,304,000 |
Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock options, restricted stock, stock appreciation rights and employee stock purchase plan |  |  | 741,000 |  |  |  | 254,000 |  |  |  | 472,000 |  |  |  | 258,000 |
Shares used in net income per common share – diluted |  |  | 54,315,000 |  |  |  | 53,568,000 |  |  |  | 53,895,000 |  |  |  | 53,562,000 |
Net income per common share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 0.61 |  |  | $ | 0.56 |  |  | $ | 1.11 |  |  | $ | 1.82 |
Diluted |  | $ | 0.60 |  |  | $ | 0.56 |  |  | $ | 1.10 |  |  | $ | 1.81 |
Basic earnings per share (“EPS”) is computed by dividing income available to common stockholders by the weighted-average number of common shares outstanding during the period. The computation of diluted EPS is similar to the computation of basic EPS except that the denominator is increased to include the number of additional common shares that would have been outstanding (using the treasury stock method) if securities containing potentially dilutive common shares (stock options, restricted stock units and stock appreciation rights) had been converted to such common shares, and if such assumed conversion is dilutive.

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