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Stockholders' Equity of the Company (Tables) | 9 Months Ended
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Sep. 30, 2021
Stockholders' Equity Note [Abstract] |
Class of treasury stock | As of September 30, 2021, share repurchases, excluding the redemption of OP units, executed under the program were as follows:
Period | Shares repurchased | Average price paid per share | Cumulative number of shares repurchased as part of the repurchase plan or programs |
Year ended 2017 | 8,105,881 | $104.61 | 8,105,881 |
Year ended 2018 | 9,468,617 | $99.03 | 17,574,498 |
Year ended 2019 | 4,465,857 | $86.06 | 22,040,355 |
Year Ended 2020 | 8,529,279 | $62.39 | 30,569,634 |
Nine months ended September 30, 2021 | 3,797,082 | $72.89 | 34,366,716 |
Schedule of common stock issued and proceeds received dividend reinvestments | The following table summarizes SL Green common stock issued, and proceeds received from dividend reinvestments and/or stock purchases under the DRSPP for the three and nine months ended September 30, 2021 and 2020, respectively (dollars in thousands):
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2021 |  | 2020 |  | 2021 |  | 2020
Shares of common stock issued | 2,004 |  |  | 4,086 |  |  | 9,038 |  |  | 9,604 |
Dividend reinvestments/stock purchases under the DRSPP | $ | 146 |  |  | $ | 202 |  |  | $ | 613 |  |  | $ | 566 |
Schedule of earnings per share | SL Green's earnings per share for the three and nine months ended September 30, 2021 and 2020 are computed as follows (in thousands):
| Three Months Ended September 30, |  | Nine Months Ended September 30,
Numerator | 2021 |  | 2020 |  | 2021 |  | 2020
Basic Earnings: |  |  |  |  |  |  |
Net income attributable to SL Green common stockholders | $ | 388,205 |  |  | $ | 13,859 |  |  | $ | 486,073 |  |  | $ | 185,104 |
Less: distributed earnings allocated to participating securities | (363) |  |  | (333) |  |  | (1,090) |  |  | (777) |
Less: undistributed earnings allocated to participating securities | (1,942) |  |  | — |  |  | (1,736) |  |  | (141) |
Net income attributable to SL Green common stockholders (numerator for basic earnings per share) | $ | 385,900 |  |  | $ | 13,526 |  |  | $ | 483,247 |  |  | $ | 184,186 |
Add back: dilutive effect of earnings allocated to participating securities | 363 |  |  | 333 |  |  | 1,090 |  |  | 777 |
Add back: undistributed earnings allocated to participating securities | 1,942 |  |  | — |  |  | 1,736 |  |  | 141 |
Add back: effect of dilutive securities (redemption of units to common shares) | 22,683 |  |  | 802 |  |  | 28,489 |  |  | 10,073 |
Net income attributable to SL Green common stockholders (numerator for diluted earnings per share) | $ | 410,888 |  |  | $ | 14,661 |  |  | $ | 514,562 |  |  | $ | 195,177 |
| Three Months Ended September 30, |  | Nine Months Ended September 30,
Denominator | 2021 |  | 2020 |  | 2021 |  | 2020
Basic Shares: |  |  |  |  |  |  |
Weighted average common stock outstanding | 66,840 |  |  | 70,943 |  |  | 68,275 |  |  | 73,373 |
Effect of Dilutive Securities: |  |  |  |  |  |  |
Operating Partnership units redeemable for common shares | 3,834 |  |  | 4,029 |  |  | 4,024 |  |  | 4,123 |
Stock-based compensation plans | 813 |  |  | 442 |  |  | 684 |  |  | 441 |
Contingently issuable shares from special dividend declared December 4, 2020 and issued January 15, 2021 | — |  |  | — |  |  | 104 |  |  | — |
Diluted weighted average common stock outstanding | 71,487 |  |  | 75,414 |  |  | 73,087 |  |  | 77,937 |

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