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CONSOLIDATED STATEMENT OF EQUITY (USD $) In Thousands, except Share data, unless otherwise specified | Total | Total Stockholders' Equity | Common Stock | Additional Paid-in Capital | Accumulated Deficit | Noncontrolling Interests
--- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2011 | $ 3,164,651 | $ 2,813,337 | $ 1,321 | $ 3,490,647 | $ (678,631) | $ 351,314
Balance (in shares) at Dec. 31, 2011 |  |  | 132,153,444 |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |
Net income | 132,819 | 119,286 |  |  | 119,286 | 13,533
Amortization of share and unit-based plans | 7,282 | 7,282 | 6 | 7,276 |  |
Amortization of share and unit-based plans (in shares) |  |  | 556,435 |  |  |
Exercise of stock warrants | (3,448) | (3,448) |  | (3,448) |  |
Employee stock purchases | 425 | 425 |  | 425 |  |
Employee stock purchases (in shares) |  |  | 9,723 |  |  |
Distributions paid ($1.10) per share | (145,947) | (145,947) |  |  | (145,947) |
Distributions to noncontrolling interests | (18,237) |  |  |  |  | (18,237)
Contributions from noncontrolling interests | 1,002 |  |  |  |  | 1,002
Other | (754) | (754) |  | (754) |  |
Conversion of noncontrolling interests to common shares |  | 11,276 | 6 | 11,270 |  | (11,276)
Conversion of noncontrolling interests to common shares (in shares) |  |  | 564,142 |  |  |
Redemption of noncontrolling interests | (15) | (10) |  | (10) |  | (5)
Adjustment of noncontrolling interest in Operating Partnership |  | (5,189) |  | (5,189) |  | 5,189
Balance at Jun. 30, 2012 | $ 3,137,778 | $ 2,796,258 | $ 1,333 | $ 3,500,217 | $ (705,292) | $ 341,520
Balance (in shares) at Jun. 30, 2012 |  |  | 133,283,744 |  |  |

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