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Earnings Per Share (EPS) (Tables) | 12 Months Ended
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Dec. 31, 2011
Earnings Per Share ("EPS") |
Summary of calculation of numerator and denominator in basic and diluted earning per share |
|  | For the Years Ended December 31, |
--- | --- | --- | ---
|  | 2011 |  | 2010 |  | 2009 |
Numerator: |  |  |  |  |  |  |  |  |  |
(Loss) income from continuing operations |  | $ | (112,696 | ) | $ | 36,620 |  | $ | 54,566 |
Gain on sales of real estate, net |  |  | 2,721 |  |  | 2,829 |  |  | — |
Preferred share dividends |  |  | (16,102 | ) |  | (16,102 | ) |  | (16,102 | )
Loss (income) from continuing operations attributable to noncontrolling interests |  |  | 5,703 |  |  | (2,300 | ) |  | (4,322 | )
Income from continuing operations attributable to restricted shares |  |  | (1,037 | ) |  | (1,071 | ) |  | (1,010 | )
Numerator for basic and diluted EPS from continuing operations attributable to COPT common shareholders |  | $ | (121,411 | ) | $ | 19,976 |  | $ | 33,132 |
Discontinued operations |  |  | (14,343 | ) |  | 6,055 |  |  | 6,733 |
Discontinued operations attributable to noncontrolling interests |  |  | 940 |  |  | (444 | ) |  | (648 | )
Numerator for basic and diluted EPS on net (loss) income attributable to COPT common shareholders |  | $ | (134,814 | ) | $ | 25,587 |  | $ | 39,217 |
Denominator (all weighted averages): |  |  |  |  |  |  |  |  |  |
Denominator for basic EPS (common shares) |  |  | 69,382 |  |  | 59,611 |  |  | 55,930 |
Dilutive effect of share-based compensation awards |  |  | — |  |  | 333 |  |  | 477 |
Denominator for diluted EPS |  |  | 69,382 |  |  | 59,944 |  |  | 56,407 |
Basic EPS: |  |  |  |  |  |  |  |  |  |
(Loss) income from continuing operations attributable to COPT common shareholders |  | $ | (1.75 | ) | $ | 0.34 |  | $ | 0.59 |
Discontinued operations attributable to COPT common shareholders |  |  | (0.19 | ) |  | 0.09 |  |  | 0.11 |
Net (loss) income attributable to COPT common shareholders |  | $ | (1.94 | ) | $ | 0.43 |  | $ | 0.70 |
Diluted EPS: |  |  |  |  |  |  |  |  |  |
(Loss) income from continuing operations attributable to COPT common shareholders |  | $ | (1.75 | ) | $ | 0.34 |  | $ | 0.59 |
Discontinued operations attributable to COPT common shareholders |  |  | (0.19 | ) |  | 0.09 |  |  | 0.11 |
Net (loss) income attributable to COPT common shareholders |  | $ | (1.94 | ) | $ | 0.43 |  | $ | 0.70 |
Schedule of securities excluded from computation of diluted earnings per share |
|  | Weighted Average Shares Excluded from Denominator for the Years Ended December 31, |
--- | --- | --- | ---
|  | 2011 |  | 2010 |  | 2009 |
Conversion of common units |  |  | 4,355 |  |  | 4,608 |  |  | 5,717 |
Conversion of convertible preferred units |  |  | 176 |  |  | 176 |  |  | 176 |
Conversion of convertible preferred shares |  |  | 434 |  |  | 434 |  |  | 434

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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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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