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Earnings Per Share | 3 Months Ended
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Mar. 31, 2015
Earnings Per Share [Abstract] |
Earnings Per Share | Earnings Per Share Basic earnings per share is calculated by dividing net income available to common stockholders by the weighted-average number of common shares outstanding. Diluted earnings per share is calculated by dividing net income available to common stockholders that has been adjusted for dilutive securities, by the weighted-average number of common shares outstanding including dilutive securities. The following is a reconciliation of the calculation of basic and diluted earnings per share (in thousands, except share and per share data):
| Three Months Ended March 31,
| 2015 |  | 2014
Numerator: |  |  |
Net income | $ | 10,641 |  |  | $ | 4,037 |
Denominator: |  |  |
Weighted-average number of common shares outstanding—basic | 200,645,518 |  |  | 195,623,959 |
Effect of dilutive securities: |  |  |
Unvested restricted common stock | 203,077 |  |  | 205,363 |
Unexercised stock appreciation rights | 2,946 |  |  | — |
Shares related to unvested PSUs | 270,692 |  |  | 575,733 |
Weighted-average number of common shares outstanding—diluted | 201,122,233 |  |  | 196,405,055 |
Earnings per share: |  |  |  |
Basic earnings per share | $ | 0.05 |  |  | $ | 0.02 |
Diluted earnings per share | $ | 0.05 |  |  | $ | 0.02 |
We did not include unexercised stock appreciation rights of 262,461 in our calculation of diluted earnings per share for the three months ended March 31, 2014 as they would be anti-dilutive.

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