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Consolidated Statements of Equity (USD $) In Thousands, unless otherwise specified | Total | Preferred Shares | Common Shares | Additional Paid-in Capital | Cumulative Distributions in Excess of Net Income (Loss) | Accumulated Other Comprehensive Loss | Noncontrolling Interests
--- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2010 | $ 1,323,138 | $ 216,333 | $ 669 | $ 1,295,592 | $ (281,794) | $ (4,163) | $ 96,501
Increase (Decrease) in Shareholders' Equity |  |  |  |  |  |  |
Conversion of common units to common shares (21,045 and 54,550 shares in 2011 and 2012, respectively) | 0 |  |  | 328 |  |  | (328)
Common shares issued to the public (4,600,000 shares in 2011) and Preferred shares issued to the public (6,900,000 shares in 2012) | 145,361 |  | 46 | 145,315 |  |  |
Exercise of share options (180,464 and 12,667 shares in 2011 and 2012, respectively) | 2,309 |  | 2 | 2,307 |  |  |
Share-based compensation | 6,358 |  | 2 | 6,356 |  |  |
Restricted common share redemptions (107,442 and 133,081 shares in 2011 and 2012, respectively) | (3,813) |  |  | (3,813) |  |  |
Adjustments to noncontrolling interests resulting from changes in ownership of Operating Partnership by COPT | 0 |  |  | (4,778) |  |  | 4,778
Adjustments related to derivatives designated as cash flow hedges | (6,327) |  |  |  |  | (5,461) | (866)
Net income (loss) | (44,573) |  |  |  | (42,014) |  | (2,559)
Dividends | (65,387) |  |  |  | (65,387) |  |
Distributions to owners of common and preferred units in the Operating Partnership | (3,947) |  |  |  |  |  | (3,947)
Contributions from noncontrolling interests in other consolidated entities | 261 |  |  | (23) |  |  | 284
Distributions to noncontrolling interests in other consolidated entities | (8) |  |  |  |  |  | (8)
Balance at Jun. 30, 2011 | 1,353,372 | 216,333 | 719 | 1,441,284 | (389,195) | (9,624) | 93,855
Balance at Dec. 31, 2011 | 1,218,065 | 216,333 | 720 | 1,452,393 | (532,288) | (1,733) | 82,640
Increase (Decrease) in Shareholders' Equity |  |  |  |  |  |  |
Conversion of common units to common shares (21,045 and 54,550 shares in 2011 and 2012, respectively) | 0 |  |  | 696 |  |  | (696)
Common shares issued to the public (4,600,000 shares in 2011) and Preferred shares issued to the public (6,900,000 shares in 2012) | 165,665 | 172,500 |  | (6,835) |  |  |
Costs associated with common shares issued to the public | (5) |  |  | (5) |  |  |
Exercise of share options (180,464 and 12,667 shares in 2011 and 2012, respectively) | 189 |  |  | 189 |  |  |
Share-based compensation | 7,181 |  | 1 | 7,180 |  |  |
Restricted common share redemptions (107,442 and 133,081 shares in 2011 and 2012, respectively) | (3,219) |  |  | (3,219) |  |  |
Adjustments to noncontrolling interests resulting from changes in ownership of Operating Partnership by COPT | 0 |  |  | 524 |  |  | (524)
Adjustments related to derivatives designated as cash flow hedges | (2,224) |  |  |  |  | (1,984) | (240)
Net income (loss) | 18,838 |  |  |  | 17,431 |  | 1,407
Dividends | (47,821) |  |  |  | (47,821) |  |
Distributions to owners of common and preferred units in the Operating Partnership | (2,672) |  |  |  |  |  | (2,672)
Distributions to noncontrolling interests in other consolidated entities | (648) |  |  |  |  |  | (648)
Balance at Jun. 30, 2012 | $ 1,353,349 | $ 388,833 | $ 721 | $ 1,450,923 | $ (562,678) | $ (3,717) | $ 79,267

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