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Earnings per Common Share (Tables) | 9 Months Ended
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Sep. 30, 2016
Earnings Per Share [Abstract] |
Schedule of computation of basic and diluted earnings per common share | The computation of basic and diluted earnings per common share is as follows (in thousands, except share and per share data):
| For the three months ended September 30, |  | For the nine months ended September 30,
| 2016 |  | 2015 |  | 2016 |  | 2015
Numerator: |  |  |  |  |  |  |
Net income attributable to common shareholders | $ | 41,174 |  |  | $ | 40,594 |  |  | $ | 124,918 |  |  | $ | 144,435 |
Less: Dividends paid on unvested restricted shares | (204 | ) |  | (346 | ) |  | (891 | ) |  | (863 | )
Less: Undistributed earnings attributable to unvested restricted shares | (1 | ) |  | — |  |  | (8 | ) |  | (136 | )
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares | $ | 40,969 |  |  | $ | 40,248 |  |  | $ | 124,019 |  |  | $ | 143,436 |
Denominator: |  |  |  |  |  |  |
Weighted-average number of common shares - basic | 123,621,323 |  |  | 127,663,480 |  |  | 123,635,010 |  |  | 129,855,686 |
Unvested restricted shares | 194,210 |  |  | 479,674 |  |  | 224,743 |  |  | 554,927 |
Unvested performance units | 20,919 |  |  | — |  |  | — |  |  | — |
Weighted-average number of common shares - diluted | 123,836,452 |  |  | 128,143,154 |  |  | 123,859,753 |  |  | 130,410,613 |
Net income per share attributable to common shareholders - basic | $ | 0.33 |  |  | $ | 0.32 |  |  | $ | 1.00 |  |  | $ | 1.10 |
Net income per share attributable to common shareholders - diluted | $ | 0.33 |  |  | $ | 0.31 |  |  | $ | 1.00 |  |  | $ | 1.10 |

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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://www.xbrl.org/2003/role/presentationRef -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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