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Per Share Data (Tables) | 6 Months Ended
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Jun. 30, 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 |  | Six Months Ended
| June 30, |  | June 30,
(in thousands, except per share amounts) | 2012 |  | 2011 |  | 2012 |  | 2011
Earnings per share calculation – basic |  |  |  |  |  |  |
Income (loss) from continuing operations attributable to common shareholders | $ | 21,763 |  |  | $ | (17,481 | ) |  | $ | 78,297 |  |  | $ | (10,978 | )
Amount allocated to participating securities | (210 | ) |  | 139 |  |  | (1,099 | ) |  | 36 |
Income (loss) from continuing operations attributable to common shareholders, net of amount allocated to participating securities | 21,553 |  |  | (17,342 | ) |  | 77,198 |  |  | (10,942 | )
Income from discontinued operations, including gain on sale, attributable to common shareholders | — |  |  | 884 |  |  | 32,224 |  |  | 1,667 |
Net income (loss) attributable to common shareholders, as adjusted | $ | 21,553 |  |  | $ | (16,458 | ) |  | $ | 109,422 |  |  | $ | (9,275 | )
Income (loss) from continuing operations attributable to common shareholders, as adjusted – per share | $ | 0.26 |  |  | $ | (0.24 | ) |  | $ | 0.95 |  |  | $ | (0.15 | )
Income from discontinued operations, including gain on sale, attributable to common shareholders – per share | — |  |  | 0.01 |  |  | 0.39 |  |  | 0.02 |
Net income (loss) attributable to common shareholders, as adjusted – per share | $ | 0.26 |  |  | $ | (0.23 | ) |  | $ | 1.34 |  |  | $ | (0.13 | )
Weighted average number of common shares outstanding – basic | 83,223 |  |  | 72,343 |  |  | 81,554 |  |  | 72,126 |
Earnings per share calculation – diluted |  |  |  |  |  |  |
Income (loss) from continuing operations attributable to common shareholders, net of amount allocated to participating securities | $ | 21,553 |  |  | $ | (17,342 | ) |  | $ | 77,198 |  |  | $ | (10,942 | )
Income allocated to common units from continuing operations | — |  |  | — |  |  | 1,685 |  |  | — |
Income (loss) from continuing operations attributable to common shareholders, as adjusted | 21,553 |  |  | (17,342 | ) |  | 78,883 |  |  | (10,942 | )
Income from discontinued operations, including gain on sale, attributable to common shareholders | — |  |  | 884 |  |  | 32,224 |  |  | 1,667 |
Net income (loss) attributable to common shareholders, as adjusted | $ | 21,553 |  |  | $ | (16,458 | ) |  | $ | 111,107 |  |  | $ | (9,275 | )
Income (loss) from continuing operations attributable to common shareholders, as adjusted – per share | $ | 0.26 |  |  | $ | (0.24 | ) |  | $ | 0.94 |  |  | $ | (0.15 | )
Income from discontinued operations, including gain on sale, attributable to common shareholders – per share | — |  |  | 0.01 |  |  | 0.38 |  |  | 0.02 |
Net income (loss) attributable to common shareholders, as adjusted – per share | $ | 0.26 |  |  | $ | (0.23 | ) |  | $ | 1.32 |  |  | $ | (0.13 | )
Weighted average number of common shares outstanding – basic | 83,223 |  |  | 72,343 |  |  | 81,554 |  |  | 72,126 |
Incremental shares issuable from assumed conversion of: |  |  |  |  |  |  |
Common share options and share awards granted | 623 |  |  | — |  |  | 652 |  |  | — |
Common units | — |  |  | — |  |  | 2,255 |  |  | — |
Weighted average number of common shares outstanding – diluted | 83,846 |  |  | 72,343 |  |  | 84,461 |  |  | 72,126 |

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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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