| Reconciliation of the Numerator and Denominator Used in the Computation of Basic and Diluted Income Per Share |
The table below is a reconciliation of the numerator and denominator used in the computation of basic and diluted net income per share computed using the two-class method (dollars in thousands): | | | | | | | | | | Three Months Ended
March 31, | | 2018 | | 2017 | Basic and diluted income: | | | | Income (loss) before (loss) gain on disposition of assets | $ | 31,323 |
| | $ | (3,388 | ) | (Loss) gain on disposition of assets | (605 | ) | | 16,217 |
| Less: income attributable to unvested restricted stock | (383 | ) | | (234 | ) | Less: dividends paid to preferred stockholders | (2,588 | ) | | — |
| Net income attributable to common stockholders used in basic and diluted income per share | $ | 27,747 |
| | $ | 12,595 |
| | | | | Basic weighted average shares of common stock outstanding: | | | | Weighted average shares of common stock outstanding | 446,483,145 |
| | 483,752,233 |
| Less: unvested weighted average shares of restricted stock | (1,607,717 | ) | | (1,145,035 | ) | Weighted average shares of common stock outstanding used in basic income per share | 444,875,428 |
| | 482,607,198 |
| Net income per share attributable to common stockholders—basic | $ | 0.06 |
| | $ | 0.03 |
| | | | | Diluted weighted average shares of common stock outstanding: (1) | | | | Unvested performance shares | 226,797 |
| | — |
| Stock options | — |
| | 1,898 |
| Convertible debt | — |
| | — |
| Weighted average shares of common stock outstanding used in diluted income per share | 445,102,225 |
| | 482,609,096 |
| Net income per share attributable to common stockholders—diluted | $ | 0.06 |
| | $ | 0.03 |
| | | | | Potentially dilutive shares of common stock | | | | Unvested shares of restricted stock | 252,475 |
| | 78,637 |
| Total | 252,475 |
| | 78,637 |
|
(1) Assumes the most dilutive issuance of potentially issuable shares between the two-class and treasury stock method unless the result would be anti-dilutive. |