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Consolidated Statements of Changes in Equity (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified | Total | Preferred Stock [Member] | Common Stock [Member] | Paid - in Capital | Distributions in Excess of Net Income | Accumulated Other Comprehensive Income/(Loss) | Non-controlling interest
--- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2011 | $ 2,318,784 | $ 128,180 | $ 2,197 | $ 3,340,470 | $ (1,142,895) | $ (13,902) | $ 4,734
Beginning Balance, Shares at Dec. 31, 2011 |  | 6,068,174 | 219,650,225 |  |  |  |
Consolidted Statements of Changes in Equity |  |  |  |  |  |  |
Net income | 233,508 |  |  |  | 233,508 |  |
Net income/(loss) attributable to non-controlling interests | 95 |  |  |  |  |  | 95
Other comprehensive loss | 298 |  |  |  |  | 298 |
Issuance of common and restricted shares, Shares |  |  | 58,750 |  |  |  |
Issuance of common and restricted shares | (758) |  | 0 | (758) |  |  |
Issuance of common shares through public offering, Shares |  |  | 30,490,969 |  |  |  |
Issuance of common shares through public offering | 756,441 |  | 305 | 756,136 |  |  |
Redemption of 3,264,362 shares of 6.75% Series G Cumulative Redeemable Shares, Shares |  | (3,264,362) |  |  |  |  |
Redemption of 3,264,362 shares of 6.75% Series G Cumulative Redeemable Shares | (81,609) | (81,609) |  | 2,791 | (2,791) |  |
Adjustment for conversion of non-controlling interest of unitholders in Operating Partnership, Shares |  |  | 5,480 |  |  |  |
Adjustment for conversion of non-controlling interest of unitholders in Operating Partnership | 146 |  |  | 146 |  |  |
Common stock distributions declared ($0.22 per share) | (105,601) |  |  |  | (105,601) |  |
Preferred stock distributions declared-Series E ($0.3322 per share) | (1,862) |  |  |  | (1,862) |  |
Preferred stock distributions declared-Series G ($0.421875 per share) | (2,286) |  |  |  | (2,286) |  |
Adjustment to reflect redemption value of redeemable non-controlling interests | (2,221) |  |  |  | (2,221) |  |
Ending Balance at Jun. 30, 2012 | $ 3,114,935 | $ 46,571 | $ 2,502 | $ 4,098,785 | $ (1,024,148) | $ (13,604) | $ 4,829
Ending Balance, Shares at Jun. 30, 2012 |  | 2,803,812 | 250,205,424 |  |  |  |

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