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Consolidated Statements of Beneficiaries' Equity (Unaudited) (USD $) In Thousands, except Share data | Total | Common Stock | Preferred Stock | Additional Paid-in Capital | Deferred Compensation Payable in Common Stock | Common Shares in Grantor Trust | Treasury Stock | Cumulative Earnings | Cumulative Distributions | Accumulated Other Comprehensive Income (Loss) | Non-Controlling Interests
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2009 | $ 1,921,740 | $ 1,286 | $ 43 | $ 2,610,421 | $ 5,549 | $ (5,549) | $ (7,205) | $ 501,384 | $ (1,213,359) | $ (9,138) | $ 38,308
Beginning Balance, shares at Dec. 31, 2009 |  | 128,849,176 | 4,300,000 |  | 255,700 |  | 251,764 |  |  |  |
Net loss | (12,615) |  |  |  |  |  |  | (12,226) |  |  | (389)
Comprehensive income | 6,457 |  |  |  |  |  |  |  |  | 6,321 | 136
Issuance of Common Shares of Beneficial Interest | 66,927 | 53 |  | 66,874 |  |  |  |  |  |  |
Issuance of Common Shares of Beneficial Interest, shares |  | 5,327,845 |  |  |  |  |  |  |  |  |
Equity issuance costs | (1,036) |  |  | (1,036) |  |  |  |  |  |  |
Issuance of LP Units | 77,732 |  |  |  |  |  |  |  |  |  | 77,732
Bonus Share Issuance | 369 |  |  |  | 369 | (369) | 871 | (502) |  |  |
Bonus Share Issuance, shares |  |  |  |  | 32,607 |  | (32,607) |  |  |  |
Vesting of Restricted Stock | (227) |  |  | (1,114) | 103 | (103) | 2,304 | (1,417) |  |  |
Vesting of Restricted Stock, shares |  |  |  |  | 8,989 |  | (76,598) |  |  |  |
Restricted Stock Amortization | 2,723 |  |  | 2,723 |  |  |  |  |  |  |
Restricted Performance Units Amortization | 695 |  |  | 695 |  |  |  |  |  |  |
Stock Option Amortization | 804 |  |  | 804 |  |  |  |  |  |  |
Outperformance Plan Amortization | 339 |  |  | 339 |  |  |  |  |  |  |
Share Issuance from/to Deferred Compensation Plan |  |  |  |  | (110) | 110 |  |  |  |  |
Share Issuance from/to Deferred Compensation Plan, shares |  | (314) |  |  | (3,866) |  |  |  |  |  |
Trustee Fees Paid in Shares | 99 |  |  |  | 35 | (35) | 224 | (125) |  |  |
Trustee Fees Paid in Shares, shares |  |  |  |  | 3,020 |  | (8,412) |  |  |  |
Adjustment to Non-controlling Interest |  |  |  | (15,874) |  |  |  |  |  |  | 15,874
Preferred Share distributions | (5,994) |  |  |  |  |  |  |  | (5,994) |  |
Distributions declared ($0.45) per share in 2011 and 2010, respectively | (61,143) |  |  |  |  |  |  |  | (59,878) |  | (1,265)
Ending Balance (Adjustments for New Accounting Pronouncement [Member]) | 1,401 |  |  |  |  |  |  | 1,439 |  |  | (38)
Ending Balance at Sep. 30, 2010 | 1,998,271 | 1,339 | 43 | 2,663,832 | 5,946 | (5,946) | (3,806) | 488,553 | (1,279,231) | (2,817) | 130,358
Ending Balance, shares at Sep. 30, 2010 |  | 134,176,707 | 4,300,000 |  | 296,450 |  | 134,147 |  |  |  |
Beginning Balance at Dec. 31, 2010 | 1,977,774 | 1,343 | 43 | 2,671,217 | 5,774 | (5,774) | (3,074) | 483,439 | (1,301,521) | (1,945) | 128,272
Beginning Balance, shares at Dec. 31, 2010 |  | 134,601,796 | 4,300,000 |  | 291,281 |  | 116,679 |  |  |  |
Net loss | (113) |  |  |  |  |  |  | (259) |  |  | 146
Comprehensive income | (487) |  |  |  |  |  |  |  |  | (479) | (8)
Issuance of Common Shares of Beneficial Interest | 8,272 | 7 |  | 8,265 |  |  |  |  |  |  |
Issuance of Common Shares of Beneficial Interest, shares | 679,285 | 679,285 |  |  |  |  |  |  |  |  |
Equity issuance costs | (338) |  |  | (308) |  |  |  |  |  |  | (30)
Conversion of LP Units to Common Shares |  | 1 |  | 1,098 |  |  |  |  |  |  | (1,099)
Conversion of LP Units to Common Shares, shares |  | 92,992 |  |  |  |  |  |  |  |  |
Bonus Share Issuance | 6 |  |  |  | 6 | (6) | 12 | (6) |  |  |
Bonus Share Issuance, shares |  |  |  |  | 463 |  | (463) |  |  |  |
Vesting of Restricted Stock | (352) | 1 |  | (1,818) |  |  | 3,062 | (1,597) |  |  |
Vesting of Restricted Stock, shares |  | 85,248 |  |  | 9,043 |  | (116,216) |  |  |  |
Restricted Stock Amortization | 2,228 |  |  | 2,228 |  |  |  |  |  |  |
Restricted Performance Units Amortization | 1,229 |  |  | 1,229 |  |  |  |  |  |  |
Exercise of Stock Options | 659 | 1 |  | 658 |  |  |  |  |  |  |
Exercise of Stock Options, shares | 120,179 | 120,179 |  |  |  |  |  |  |  |  |
Stock Option Amortization | 1,105 |  |  | 1,105 |  |  |  |  |  |  |
Outperformance Plan Amortization | 128 |  |  | 128 |  |  |  |  |  |  |
Share Issuance from/to Deferred Compensation Plan | (16) |  |  | (16) | (149) | 149 |  |  |  |  |
Share Issuance from/to Deferred Compensation Plan, shares |  | (845) |  |  | (8,141) |  |  |  |  |  |
Share Choice Plan Issuance | (55) |  |  | (55) |  |  |  |  |  |  |
Share Choice Plan Issuance, shares |  | (1,684) |  |  |  |  |  |  |  |  |
Trustee Fees Paid in Shares | 32 |  |  | 32 |  |  |  |  |  |  |
Trustee Fees Paid in Shares, shares |  | 2,672 |  |  |  |  |  |  |  |  |
Adjustment to Non-controlling Interest |  |  |  | 3,037 |  |  |  |  |  |  | (3,037)
Preferred Share distributions | (5,994) |  |  |  |  |  |  |  | (5,994) |  |
Distributions declared ($0.45) per share in 2011 and 2010, respectively | (63,184) |  |  |  |  |  |  |  | (61,294) |  | (1,890)
Ending Balance at Sep. 30, 2011 | $ 1,920,894 | $ 1,353 | $ 43 | $ 2,686,800 | $ 5,631 | $ (5,631) | $ 0 | $ 481,577 | $ (1,368,809) | $ (2,424) | $ 122,354
Ending Balance, shares at Sep. 30, 2011 |  | 135,579,643 | 4,300,000 |  | 292,646 |  | 0 |  |  |  |

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