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Earnings per Share and Unit (Tables) | 9 Months Ended
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Sep. 30, 2019
Schedule of earnings per share | The following summarizes the calculation of basic and diluted earnings per share:
|  | Three months ended September 30, |  |  | Nine months ended September 30, |
(in thousands, except per share data) |  | 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income from operations attributable to common stockholders - basic |  | $ | 56,965 |  |  | $ | 69,722 |  |  | $ | 199,139 |  |  | $ | 170,222 |
Income from operations attributable to common stockholders - diluted |  | $ | 56,965 |  |  |  | 69,722 |  |  | $ | 199,139 |  |  |  | 170,222 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average common shares outstanding for basic EPS |  |  | 167,559 |  |  |  | 169,438 |  |  |  | 167,512 |  |  |  | 169,847 |
Weighted average common shares outstanding for diluted EPS (1) |  |  | 167,944 |  |  |  | 169,839 |  |  |  | 167,834 |  |  |  | 170,166 |
Income per common share – basic |  | $ | 0.34 |  |  |  | 0.41 |  |  | $ | 1.19 |  |  |  | 1.00 |
Income per common share – diluted |  | $ | 0.34 |  |  |  | 0.41 |  |  | $ | 1.19 |  |  |  | 1.00 |
(1) Includes the dilutive impact of unvested restricted stock using the treasury stock method.
Partnership Interest [Member] |
Schedule of earnings per share | The following summarizes the calculation of basic and diluted earnings per unit:
|  | Three months ended September 30, |  |  | Nine months ended September 30, |
(in thousands, except per share data) |  | 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income from operations attributable to common unit holders - basic |  | $ | 57,122 |  |  | $ | 69,869 |  |  | $ | 199,595 |  |  | $ | 170,580 |
Income from operations attributable to common unit holders - diluted |  | $ | 57,122 |  |  |  | 69,869 |  |  | $ | 199,595 |  |  |  | 170,580 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average common units outstanding for basic EPU |  |  | 167,965 |  |  |  | 169,788 |  |  |  | 167,881 |  |  |  | 170,197 |
Weighted average common units outstanding for diluted EPU (1) |  |  | 168,350 |  |  |  | 170,189 |  |  |  | 168,203 |  |  |  | 170,516 |
Income per common unit – basic |  | $ | 0.34 |  |  |  | 0.41 |  |  | $ | 1.19 |  |  |  | 1.00 |
Income per common unit – diluted |  | $ | 0.34 |  |  |  | 0.41 |  |  | $ | 1.19 |  |  |  | 1.00 |
| (1) | Includes the dilutive impact of unvested restricted stock using the treasury stock method and excludes the 1.9 million shares issuable under the forward sale agreements because they would be anti-dilutive.

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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://fasb.org/us-gaap/role/ref/legacyRef -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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