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Earnings Per Share (Tables) | 3 Months Ended
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Mar. 31, 2018
Earnings Per Share [Abstract] |
Reconciles Numerator and Denominator of Basic and Diluted Earnings Per Share Computations | 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 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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