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Earnings Per Share | 3 Months Ended
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Mar. 31, 2018
Earnings Per Share [Abstract] |
Earnings Per Share | 10. Earnings Per Share Basic earnings per share (“EPS”) is based on the weighted average number of common shares outstanding for the period, excluding any dilutive common share equivalents. Diluted EPS reflects the potential dilution resulting from the exercises of stock options, vesting of restricted stock, vesting of performance share units, and conversion of preferred stock. The following table reconciles the numerator (i.e., income) and denominator (i.e., shares) of the basic and diluted earnings per share computations for the periods presented (in thousands, except per share data):
| Three Months Ended |  |
| March 31, |  |
| 2018 |  |  | 2017 |  |
Numerator for EPS: |  |  |  |  |  |  |  |
Net income | $ | 40,055 |  |  | $ | 31,199 |  |
Less: Preferred stock dividends |  | (3 | ) |  |  | (3 | ) |
Income available to common stockholders | $ | 40,052 |  |  | $ | 31,196 |  |
Denominator for EPS: |  |  |  |  |  |  |  |
Weighted average common shares outstanding |  | 34,839 |  |  |  | 35,140 |  |
Plus: Assumed conversion of share-based compensation (1) |  | 796 |  |  |  | 1,015 |  |
Assumed conversion of preferred stock |  | 25 |  |  |  | 25 |  |
Weighted average diluted common shares outstanding |  | 35,660 |  |  |  | 36,180 |  |
Basic earnings per common share | $ | 1.15 |  |  | $ | 0.89 |  |
Diluted earnings per common share | $ | 1.12 |  |  | $ | 0.86 |  |
(1) | Represents the dilutive effect of unvested restricted stock, unvested performance share units and unexercised stock options.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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