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Per Share Data (Tables) | 3 Months Ended
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Mar. 31, 2012
Earnings Per Share [Abstract] |
Calculation Of Basic And Diluted Earnings Per Share | The following table presents information necessary to calculate basic and diluted earnings per share for the periods indicated:
| Three Months Ended
| March 31,
(in thousands, except per share amounts) | 2012 |  | 2011
Earnings per share calculation – basic |  |  |
Income from continuing operations attributable to common shareholders | $ | 56,534 |  |  | $ | 6,503 |
Amount allocated to participating securities | (890 | ) |  | (104 | )
Income from continuing operations attributable to common shareholders, net of amount allocated to participating securities | 55,644 |  |  | 6,399 |
Income from discontinued operations, including gain on sale, attributable to common shareholders | 32,224 |  |  | 783 |
Net income attributable to common shareholders, as adjusted | $ | 87,868 |  |  | $ | 7,182 |
Income from continuing operations attributable to common shareholders, as adjusted – per share | $ | 0.70 |  |  | $ | 0.09 |
Income from discontinued operations, including gain on sale, attributable to common shareholders – per share | 0.40 |  |  | 0.01 |
Net income attributable to common shareholders, as adjusted – per share | $ | 1.10 |  |  | $ | 0.10 |
Weighted average number of common shares outstanding – basic | 79,885 |  |  | 71,906 |
Earnings per share calculation – diluted |  |  |
Income from continuing operations attributable to common shareholders, net of amount allocated to participating securities | $ | 55,644 |  |  | $ | 6,399 |
Income allocated to common units from continuing operations | 700 |  |  | 10 |
Income from continuing operations attributable to common shareholders, as adjusted | 56,344 |  |  | 6,409 |
Income from discontinued operations, including gain on sale, attributable to common shareholders | 32,224 |  |  | 783 |
Net income attributable to common shareholders, as adjusted | $ | 88,568 |  |  | $ | 7,192 |
Income from continuing operations attributable to common shareholders, as adjusted – per share | $ | 0.68 |  |  | $ | 0.09 |
Income from discontinued operations, including gain on sale, attributable to common shareholders – per share | 0.39 |  |  | 0.01 |
Net income attributable to common shareholders, as adjusted – per share | $ | 1.07 |  |  | $ | 0.10 |
Weighted average number of common shares outstanding – basic | 79,885 |  |  | 71,906 |
Incremental shares issuable from assumed conversion of: |  |  |
Common share options and share awards granted | 679 |  |  | 638 |
Common units | 2,291 |  |  | 239 |
Weighted average number of common shares outstanding – diluted | 82,855 |  |  | 72,783 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations. + References No definition available. + Details
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