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Earnings per Share and Unit | 12 Months Ended
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Dec. 31, 2023
Earnings Per Share And Unit [Abstract] |
Earnings per Share and Unit | 15. Earnings per Share and Unit Parent Company Earnings per Share The following summarizes the calculation of basic and diluted earnings per share:
|  | Year ended December 31, |
(in thousands, except per share data) |  | 2023 |  |  | 2022 |  |  | 2021 |
Numerator: |  |  |  |  |  |  |  |  |
Income attributable to common shareholders - basic |  | $ | 359,500 |  |  |  | 482,865 |  |  |  | 361,411 |
Income attributable to common shareholders - diluted |  | $ | 359,500 |  |  |  | 482,865 |  |  |  | 361,411 |
Denominator: |  |  |  |  |  |  |  |  |
Weighted average common shares outstanding for basic EPS |  |  | 176,085 |  |  |  | 171,404 |  |  |  | 170,236 |
Weighted average common shares outstanding for diluted EPS (1) (2) |  |  | 176,371 |  |  |  | 171,791 |  |  |  | 170,694 |
Income per common share – basic |  | $ | 2.04 |  |  |  | 2.82 |  |  |  | 2.12 |
Income per common share – diluted |  | $ | 2.04 |  |  |  | 2.81 |  |  |  | 2.12 |
(1) Includes the dilutive impact of unvested restricted stock. (2) Using the treasury stock method, weighted average common shares outstanding for basic and diluted earnings per share exclude 1.0 million shares issuable under the forward ATM equity offering outstanding during 2021 as they would be anti-dilutive. The effect of the assumed conversion of certain convertible units had an anti-dilutive effect upon the calculation of income to the common shareholders per share. Accordingly, the impact of such conversions has not been included in the determination of diluted income per share calculations. Operating Partnership Earnings per Unit The following summarizes the calculation of basic and diluted earnings per unit ("EPU"):
|  | Year ended December 31, |
(in thousands, except per share data) |  | 2023 |  |  | 2022 |  |  | 2021 |
Numerator: |  |  |  |  |  |  |  |  |
Income attributable to common unit holders - basic |  | $ | 361,508 |  |  |  | 484,970 |  |  |  | 363,026 |
Income attributable to common unit holders - diluted |  | $ | 361,508 |  |  |  | 484,970 |  |  |  | 363,026 |
Denominator: |  |  |  |  |  |  |  |  |
Weighted average common units outstanding for basic EPU |  |  | 177,038 |  |  |  | 172,152 |  |  |  | 170,998 |
Weighted average common units outstanding for diluted EPU (1) (2) |  |  | 177,324 |  |  |  | 172,540 |  |  |  | 171,456 |
Income per common unit – basic |  | $ | 2.04 |  |  |  | 2.82 |  |  |  | 2.12 |
Income per common unit – diluted |  | $ | 2.04 |  |  |  | 2.81 |  |  |  | 2.12 |
(1) Includes the dilutive impact of unvested restricted stock. (2) Using the treasury stock method, weighted average common shares outstanding for basic and diluted earnings per share exclude 1.0 million shares issuable under the forward ATM equity offering outstanding during 2021 as they would be anti-dilutive. The effect of the assumed conversion of certain convertible units had an anti-dilutive effect upon the calculation of income to the common unit holders per share. Accordingly, the impact of such conversions has not been included in the determination of diluted income per unit calculations.

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