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Consolidated Statements of Beneficiaries' Equity (USD $) In Thousands, except Share data | Total | Preferred Stock [Member] | Common Stock [Member] | Additional Paid-in Capital [Member] | Deferred Compensation, Share-based Payments [Member] | Common Stock In Grantor Trust [Member] | Cumulative Earnings [Member] | Accumulated Other Comprehensive Income (Loss) [Member] | Cumulative Distributions [Member] | Noncontrolling Interest [Member]
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2012 | $ 1,773,516 | $ 40 | $ 1,434 | $ 2,780,194 | $ 5,352 | $ (5,352) | $ 479,734 | $ (15,918) | $ (1,493,206) | $ 21,238
Beginning Balance, Shares at Dec. 31, 2012 |  | 4,000,000 | 143,538,733 |  | 290,745 |  |  |  |  |
Net income | 22,187 |  |  |  |  |  | 21,992 |  |  | 195
Comprehensive Income (Loss) | 10,210 |  |  |  |  |  |  | 10,093 |  | 117
Stock Issued During Period, Shares, New Issues |  |  | 12,650,000 |  |  |  |  |  |  |
Stock Issued During Period, Value, New Issues | 182,034 |  | 127 | 181,907 |  |  |  |  |  |
Equity Issuance Costs | (382) |  |  | (382) |  |  |  |  |  |
Conversion of LP Units to Common Shares |  |  | 81,998 |  |  |  |  |  |  |
Bonus Share Issuance, Shares |  |  | 27,918 |  |  |  |  |  |  |
Stock Issued During Period, Value, Conversion of Units | 0 |  | 1 | 1,240 |  |  |  |  |  | (1,241)
Bonus Share Issuance, Value | 361 |  |  | 361 |  |  |  |  |  |
Share Based Compensation Activity, Shares |  |  | 409,979 |  | 34,117 |  |  |  |  |
Share Based Compensation Activity, Value | 8,034 |  | 3 | 8,022 |  |  | 9 |  |  |
Share Issuance from/to Deferred Compensation Plan, Shares |  |  | (4,838) |  | (11,839) |  |  |  |  |
Share issuance from/to Deferred Compensation Plan, Value | 0 |  |  |  | 79 | (79) |  |  |  |
Adjustments to Non-controlling Interest | 0 |  |  | (766) |  |  |  |  |  | 766
Preferred Share distributions | (5,175) |  |  |  |  |  |  |  | (5,175) |
Distributions declared ($0.45 per share) | (69,627) |  |  |  |  |  |  |  | (68,821) | (806)
Ending Balance at Sep. 30, 2013 | 1,921,158 | 40 | 1,565 | 2,970,576 | 5,431 | (5,431) | 501,735 | (5,825) | (1,567,202) | 20,269
Ending Balance, Shares at Sep. 30, 2013 |  | 4,000,000 | 156,703,790 |  | 313,023 |  |  |  |  |
Beginning Balance at Dec. 31, 2013 | 1,921,435 | 40 | 1,566 | 2,971,596 | 5,407 | (5,407) | 522,528 | (2,995) | (1,592,515) | 21,215
Beginning Balance, Shares at Dec. 31, 2013 |  | 4,000,000 | 156,731,993 |  | 312,280 |  |  |  |  |
Net income | 8,811 |  |  |  |  |  | 8,754 |  |  | 57
Comprehensive Income (Loss) | 335 |  |  |  |  |  |  | 337 |  | (2)
Common Stock, Shares, Issued | 178,982,369 |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues | 21,850,000 |  | 21,850,000 |  |  |  |  |  |  |
Stock Issued During Period, Value, New Issues | 335,398 |  | 219 | 335,179 |  |  |  |  |  |
Equity Issuance Costs | (452) |  |  | (452) |  |  |  |  |  |
Conversion of LP Units to Common Shares |  |  | 41,734 |  |  |  |  |  |  |
Stock Issued During Period, Value, Conversion of Units | 0 |  |  | 655 |  |  |  |  |  | (655)
Share Based Compensation Activity, Shares |  |  | 279,913 |  |  |  |  |  |  |
Share Based Compensation Activity, Value | 4,614 |  | 5 | 4,597 |  |  | 12 |  |  |
Share Issuance from/to Deferred Compensation Plan, Shares |  |  | 78,729 |  | 72,256 |  |  |  |  |
Share issuance from/to Deferred Compensation Plan, Value | (90) |  |  | (90) | 812 | (812) |  |  |  |
Adjustments to Non-controlling Interest | 0 |  |  | (1,172) |  |  |  |  |  | 1,172
Preferred Share distributions | (5,175) |  |  |  |  |  |  |  | (5,175) |
Distributions declared ($0.45 per share) | (74,986) |  |  |  |  |  |  |  | (74,198) | (788)
Ending Balance at Sep. 30, 2014 | $ 2,189,890 | $ 40 | $ 1,790 | $ 3,310,313 | $ 6,219 | $ (6,219) | $ 531,294 | $ (2,658) | $ (1,671,888) | $ 20,999
Ending Balance, Shares at Sep. 30, 2014 |  | 4,000,000 | 178,982,369 |  | 384,536 |  |  |  |  |

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