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Earnings per Share and Unit (Tables) | 6 Months Ended
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Jun. 30, 2019
Schedule of earnings per share | The following summarizes the calculation of basic and diluted earnings per share:
|  | Three months ended June 30, |  |  | Six months ended June 30, |
(in thousands, except per share data) |  | 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income from operations attributable to common stockholders - basic |  | $ | 51,728 |  |  |  | 47,841 |  |  | $ | 142,174 |  |  |  | 100,500 |
Income from operations attributable to common stockholders - diluted |  | $ | 51,728 |  |  |  | 47,841 |  |  | $ | 142,174 |  |  |  | 100,500 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average common shares outstanding for basic EPS |  |  | 167,536 |  |  |  | 169,424 |  |  |  | 167,488 |  |  |  | 170,056 |
Weighted average common shares outstanding for diluted EPS (1) |  |  | 167,962 |  |  |  | 169,682 |  |  |  | 167,877 |  |  |  | 170,291 |
Income per common share – basic |  | $ | 0.31 |  |  |  | 0.28 |  |  | $ | 0.85 |  |  |  | 0.59 |
Income per common share – diluted |  | $ | 0.31 |  |  |  | 0.28 |  |  | $ | 0.85 |  |  |  | 0.59 |
(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 June 30, |  |  | Six months ended June 30, |
(in thousands, except per share data) |  | 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income from operations attributable to common unit holders - basic |  | $ | 51,837 |  |  |  | 47,941 |  |  | $ | 142,473 |  |  |  | 100,712 |
Income from operations attributable to common unit holders - diluted |  | $ | 51,837 |  |  |  | 47,941 |  |  | $ | 142,473 |  |  |  | 100,712 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average common units outstanding for basic EPU |  |  | 167,886 |  |  |  | 169,774 |  |  |  | 167,838 |  |  |  | 170,406 |
Weighted average common units outstanding for diluted EPU (1) |  |  | 168,312 |  |  |  | 170,032 |  |  |  | 168,227 |  |  |  | 170,641 |
Income per common unit – basic |  | $ | 0.31 |  |  |  | 0.28 |  |  | $ | 0.85 |  |  |  | 0.59 |
Income per common unit – diluted |  | $ | 0.31 |  |  |  | 0.28 |  |  | $ | 0.85 |  |  |  | 0.59 |
(1) Includes the dilutive impact of unvested restricted stock using the treasury stock method.

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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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