7Baggers
Quarterly
Annual
    Unit: USD2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-09-30 2013-06-30 2013-03-31 2012-09-30 2012-06-30 2012-03-31 2011-09-30 2011-06-30 2011-03-31 2010-09-30 2010-06-30 2010-03-31 2009-09-30 2009-06-30 2009-03-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2005-09-30 2005-06-30 2005-03-31 2004-12-31 2004-09-30 2004-06-30 2004-03-31 2003-12-31 2003-09-30 2003-06-30 2003-03-31 2002-12-31 
      
    		                                                                                    
      assets
    		                                                                                    
      real estate
    		 132,500,000                                                                                   
      cash and cash equivalents
    		227,271,000 160,511,000 2,225,150,000 2,195,823,000 2,170,834,000 2,160,535,000 2,127,788,000 2,153,047,000 2,128,688,000 2,582,222,000 2,692,354,000 2,691,503,000 2,721,929,000 2,800,998,000 2,961,564,000 2,965,788,000 2,971,052,000 2,987,225,000 3,418,240,000 3,437,775,000 3,348,349,000 2,795,642,000 3,205,775,000 3,180,548,000 3,069,501,000 2,400,803,000 2,673,328,000 2,507,117,000 2,837,671,000 2,351,693,000 2,233,077,000 1,967,549,000 1,888,537,000 2,094,674,000 2,405,174,000 1,772,337,000 1,742,128,000 1,802,729,000 1,649,162,000 1,286,902,000 421,736,000 379,058,000 597,405,000 428,373,000 177,555,000 165,990,000 77,520,000 48,692,000 72,680,000 138,805,000 193,587,000 210,673,000 55,035,000 25,389,000 174,723,000 33,443,000 138,702,000 33,227,000 38,138,000 35,317,000 24,851,000 33,277,000 32,065,000 19,879,000 25,639,000 29,026,000 23,059,000 17,783,000 33,458,000 35,099,000 35,587,000 19,445,000 21,514,000 18,921,000 22,335,000 21,961,000 26,569,000 19,553,000 43,609,000 11,526,000 21,044,000 18,698,000 24,583,000 12,384,000 
      rents receivable and other assets
    		386,000 613,000                                                                                   
      total assets
    		227,657,000 293,624,000 2,441,130,000 2,463,741,000 2,439,686,000 2,425,041,000 2,393,786,000 2,421,843,000 2,399,324,000 2,854,885,000 2,968,520,000 2,968,480,000 3,000,018,000 3,081,383,000 3,244,603,000 3,256,268,000 3,260,676,000 3,277,671,000 3,708,774,000 3,733,155,000 3,704,057,000 3,319,377,000 3,731,343,000 3,702,171,000 3,713,937,000 3,530,772,000 3,813,728,000 3,776,874,000 4,137,306,000 4,236,945,000 4,260,289,000 4,491,116,000 4,518,756,000 4,526,075,000 4,965,767,000 4,911,775,000 5,103,149,000 5,244,372,000 5,324,243,000 5,548,046,000 5,734,296,000 5,761,639,000 6,170,796,000 6,593,360,000 6,600,714,000 6,821,987,000 8,019,538,000 8,082,668,000 7,946,955,000 7,798,584,000 7,713,391,000 7,458,190,000 6,959,999,000 6,689,687,000 6,373,775,000 6,205,018,000 6,234,751,000 6,007,527,000 5,926,090,000 6,070,451,000 6,070,543,000 6,003,146,000 5,959,846,000 5,859,332,000 5,800,512,000 5,750,889,000 5,636,768,000 5,575,949,000 5,454,778,000 5,441,519,000 5,355,189,000 5,327,167,000 5,154,048,000 5,012,423,000 4,823,683,000 4,813,330,000 4,752,257,000 4,045,756,000 4,027,411,000 4,013,244,000 3,494,801,000    
      liabilities
    		                                                                                    
      liabilities for estimated costs in excess of estimated receipts during liquidation
    		50,996,000 100,019,000                                                                                   
      accounts payable and accrued expenses
    		166,000 10,908,000                           42,007,000 69,220,000 63,506,000 75,800,000 62,518,000 95,395,000 87,003,000 117,363,000 120,888,000 123,587,000 121,697,000 128,590,000 149,009,000 162,204,000 163,075,000 138,412,000 136,482,000 169,498,000 165,449,000 155,993,000 143,192,000 158,044,000 140,172,000 148,525,000 137,357,000 113,761,000 108,792,000 110,885,000 91,407,000 99,214,000 101,886,000 96,597,000 101,723,000 96,358,000 81,040,000 89,441,000 88,122,000 87,111,000 71,279,000 93,734,000 75,796,000 79,729,000 67,078,000 80,125,000 64,993,000 73,137,000 43,494,000 67,716,000 67,512,000 62,545,000 54,421,000 60,541,000 45,261,000 43,676,000 36,587,000 38,402,000 
      distributions payable
    		 3,842,000 2,803,000 3,663,000 3,359,000 5,640,000 6,390,000 6,868,000 7,795,000 2,863,000 113,584,000 1,276,000 514,000 2,365,000 2,954,000 2,850,000 5,072,000 10,991,000 438,105,000 5,791,000 5,791,000 7,534,000 435,583,000    309,238,000                6,981,000                                          
      total liabilities
    		51,162,000 114,769,000 27,948,000 25,954,000 26,358,000 34,928,000 31,550,000 30,016,000 30,252,000 31,153,000 137,925,000 22,658,000 19,751,000 26,113,000 32,769,000 24,432,000 29,058,000 34,507,000 465,668,000 59,414,000 59,443,000 73,505,000 503,230,000 66,548,000 322,376,000 346,774,000 644,217,000 334,565,000 735,827,000 936,450,000 935,590,000 1,204,655,000 1,232,231,000 1,265,628,000 1,676,727,000 1,713,137,000 1,715,778,000 1,875,885,000 1,997,035,000 2,160,816,000 2,423,118,000 2,442,056,000 2,681,793,000 3,222,472,000 3,241,644,000 3,400,954,000 3,947,061,000 3,955,938,000 4,446,831,000 4,116,458,000 3,990,361,000 3,865,893,000 3,571,825,000 3,549,902,000 3,059,930,000 3,096,495,000 3,084,814,000 3,044,362,000 2,996,131,000 3,160,699,000 3,152,435,000 3,124,668,000 3,089,567,000 2,956,449,000 2,861,976,000 2,789,191,000 2,657,591,000 2,625,181,000 2,812,897,000 2,778,266,000 2,671,362,000 2,681,681,000 2,496,698,000 2,465,376,000 2,273,974,000 2,506,136,000 2,438,320,000 1,719,900,000 1,689,700,000 2,001,593,000 1,478,264,000    
      commitments and contingencies
    		                                                                                    
      net assets in liquidation attributable to equity commonwealth common shareholders
    		176,408,000 178,605,000                                                                                   
      net assets in liquidation attributable to noncontrolling interest
    		87,000 250,000                                                                                   
      net assets in liquidation
    		176,495,000 178,855,000                                                                                   
      real estate properties:
    		                                                                                    
      land
    		  22,400,000 44,060,000 44,060,000 44,060,000 44,060,000 44,060,000 44,060,000 44,060,000 44,060,000 44,060,000 44,060,000 44,060,000 44,060,000 44,060,000 44,060,000 44,060,000 44,060,000 44,060,000 44,060,000 85,627,000 85,627,000 85,627,000 110,395,000 135,142,000 137,329,000 146,700,000 146,700,000 191,775,000 216,957,000 232,857,000 269,062,000 286,186,000 293,225,000 328,351,000 372,714,000 389,410,000 413,281,000 456,614,000 705,222,000 714,238,000 740,448,000 748,302,000 747,181,000 740,613,000 1,533,543,000 1,548,225,000 1,531,466,000 1,514,341,000 1,498,146,000 1,445,301,000 1,440,845,000 1,393,691,000 1,238,611,000 1,222,519,000 1,237,842,000 1,224,934,000 1,200,934,000 1,242,053,000 1,210,627,000 1,166,638,000 1,201,683,000 1,189,684,000 1,175,940,000 1,167,702,000 1,148,123,000 1,143,109,000 1,112,035,000 1,112,110,000 1,101,349,000 1,081,635,000 1,062,223,000 1,050,303,000 928,111,000 928,106,000 927,255,000 858,687,000 854,595,000 852,983,000 376,605,000 363,030,000 356,241,000 346,895,000 
      buildings and improvements
    		  158,152,000 374,095,000 371,550,000 367,827,000 366,908,000 365,247,000 364,155,000 364,063,000 363,782,000 363,990,000 362,464,000 362,042,000 362,391,000 361,592,000 361,107,000 357,650,000 355,877,000 353,665,000 351,880,000 576,494,000 572,714,000 571,342,000 704,142,000 1,004,500,000 1,000,822,000 1,117,446,000 1,100,524,000 1,555,836,000 1,841,230,000 1,961,445,000 2,395,748,000 2,570,704,000 2,642,588,000 3,074,591,000 3,399,909,000 3,497,942,000 3,559,060,000 3,834,855,000 4,994,374,000 5,014,205,000 5,145,916,000 5,146,617,000 5,168,335,000 4,890,457,000 6,446,307,000 6,441,544,000 6,331,605,000 6,127,544,000 5,987,358,000 5,746,893,000 5,446,227,000 5,244,138,000 5,150,677,000 5,003,943,000 5,085,249,000 4,948,914,000 4,768,406,000 5,051,996,000 4,905,129,000 4,770,280,000 5,072,208,000 4,966,610,000 4,873,816,000 4,821,438,000 4,674,941,000 4,619,164,000 4,472,412,000 4,447,106,000 4,333,819,000 4,154,466,000 3,999,891,000 3,861,945,000 3,774,135,000 3,756,963,000 3,667,234,000 3,104,201,000 3,058,575,000 3,038,983,000 2,998,748,000 2,906,076,000 2,842,112,000 2,744,166,000 
      accumulated depreciation
    		  -69,254,000 -183,867,000 -180,266,000 -180,535,000 -178,201,000 -174,399,000 -171,379,000 -169,530,000 -166,379,000 -163,451,000 -159,755,000 -156,439,000 -154,230,000 -150,754,000 -147,034,000 -143,319,000 -142,053,000 -139,061,000 -136,836,000 -202,700,000 -197,847,000 -193,166,000 -245,528,000 -375,968,000 -370,854,000 -387,888,000 -379,862,000 -450,718,000 -554,411,000 -561,003,000 -705,000,000 -755,255,000 -751,882,000 -828,786,000 -880,678,000 -898,939,000 -884,183,000 -913,303,000 -1,066,369,000 -1,030,445,000 -988,323,000                                          
      assets held for sale
    		  86,803,000                  55,941,000        38,882,000   348,203,000                                                     
      rents receivable
    		  8,046,000 17,257,000 16,593,000 15,737,000 15,174,000 16,151,000 15,606,000 16,009,000 16,234,000 15,960,000 15,644,000 15,549,000 15,473,000 15,310,000 14,629,000 14,702,000 14,486,000 13,968,000 14,964,000 19,554,000 19,347,000 19,735,000 31,151,000                                                     96,152,000 93,120,000 83,973,000 76,898,000 73,605,000 65,192,000 63,105,000 
      other assets
    		  9,833,000 16,373,000 16,915,000 17,417,000 18,057,000 17,737,000 18,194,000 18,061,000 18,469,000 16,418,000 15,676,000 15,173,000 15,345,000 20,272,000 16,862,000 17,353,000 18,164,000 18,645,000 22,525,000 39,757,000 41,271,000 35,683,000 42,326,000 62,031,000 63,858,000 76,512,000 78,986,000 87,563,000 100,213,000 99,309,000 126,698,000 122,922,000 123,699,000 140,215,000 152,678,000 157,549,000 162,614,000 159,845,000 211,682,000 220,480,000 209,005,000 206,204,000 206,967,000 195,330,000 225,185,000 221,790,000 245,812,000 228,562,000 210,166,000 182,259,000 224,837,000 210,975,000 153,626,000 115,235,000 135,572,000 123,614,000 123,919,000 127,784,000 125,357,000 100,593,000 125,627,000 124,709,000 130,212,000 106,284,000 135,537,000 102,273,000 120,659,000 95,566,000 104,181,000 101,012,000 96,482,000 82,018,000 93,398,000 68,083,000 77,160,000 75,368,000 64,110,000 50,440,000 54,718,000 61,159,000 59,269,000 50,836,000 
      liabilities and equity
    		                                                                                    
      liabilities related to properties held for sale
    		  6,200,000                  81,000        1,153,000 1,840,000  2,019,000 1,013,000  667,000 1,687,000 169,000  1,909,000 20,336,000     23,066,000 30,322,000 1,588,000 1,994,000    463,000 379,000                                
      accounts payable, accrued expenses and other
    		  17,621,000 19,585,000 20,833,000 27,298,000 23,027,000 20,016,000 19,642,000 25,935,000 21,704,000 18,619,000 15,505,000 19,762,000 27,391,000 19,209,000 21,007,000 20,588,000 25,702,000 25,821,000 25,966,000 37,153,000 38,218,000 36,903,000 42,280,000 62,368,000 46,896,000 44,380,000                                                         
      rent collected in advance
    		  1,324,000 2,706,000 2,166,000 1,990,000 2,133,000 3,132,000 2,815,000 2,355,000 2,637,000 2,763,000 3,732,000 3,986,000 2,424,000 2,373,000 2,979,000 2,928,000 1,861,000 2,521,000 2,118,000 3,127,000 3,533,000 3,554,000 5,119,000 9,451,000 8,182,000 10,173,000 9,225,000 11,076,000 14,355,000 19,095,000 18,485,000 18,460,000 21,529,000 24,615,000 23,588,000 27,340,000 29,744,000 21,860,000 30,719,000 31,359,000 26,197,000 29,266,000 29,618,000 29,220,000 29,260,000 34,703,000 25,883,000 32,163,000 33,872,000 35,593,000 31,579,000 29,293,000 32,418,000 30,150,000 33,949,000 29,405,000 27,486,000 31,486,000 25,513,000 22,628,000 25,507,000 24,779,000 20,124,000 22,736,000 22,932,000 19,592,000 20,211,000 20,534,000 23,114,000 17,858,000 20,060,000 18,048,000 15,885,000 15,208,000 16,625,000 13,253,000 16,623,000 13,135,000 12,299,000 14,184,000 10,121,000  
      shareholders’ equity:
    		                                                                                    
      preferred shares of beneficial interest, 0.01 par value: 50,000,000 shares authorized;
    		                                                                                    
      series d preferred shares; 6.50% cumulative convertible; 4,915,196 shares issued and outstanding, aggregate liquidation preference of 122,880
    		  119,263,000 119,263,000 119,263,000 119,263,000 119,263,000 119,263,000 119,263,000 119,263,000 119,263,000 119,263,000 119,263,000 119,263,000 119,263,000 119,263,000 119,263,000 119,263,000 119,263,000 119,263,000 119,263,000 119,263,000                                                               
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 107,327,691 and 106,847,438 shares issued and outstanding, respectively
    		  1,073,000 1,073,000                                                                                 
      additional paid in capital
    		  3,942,389,000 3,939,583,000 3,935,501,000 3,935,873,000 3,930,372,000 3,984,681,000 3,976,643,000 3,979,566,000 4,005,125,000 4,018,440,000 4,053,256,000 4,128,656,000 4,282,106,000 4,297,197,000 4,295,226,000 4,294,632,000 4,291,293,000 4,288,245,000 4,285,266,000 4,313,831,000 4,310,353,000 4,308,049,000 4,304,560,000 4,305,974,000 4,306,020,000 4,300,822,000 4,295,772,000 4,380,313,000 4,378,184,000 4,372,610,000 4,367,190,000 4,363,177,000 4,402,927,000 4,398,033,000 4,393,409,000 4,414,611,000 4,410,951,000 4,495,244,000 4,491,093,000 4,487,133,000 4,484,552,000 4,483,653,000 4,217,651,000 4,213,472,000 4,212,182,000 4,212,082,000 3,585,964,000 3,590,410,000 3,590,321,000 3,613,828,000 3,349,114,000 3,348,849,000 3,354,771,000 3,165,077,000 3,162,936,000 2,924,166,000 2,923,649,000 2,923,549,000 2,937,962,000 2,923,611,000 2,923,455,000 2,923,455,000  2,798,279,000 2,787,449,000 2,774,461,000 2,774,270,000 2,773,664,000 2,772,245,000 2,779,159,000 2,779,159,000 2,653,791,000 2,653,738,000 2,394,946,000 2,394,946,000 2,394,537,000 2,394,497,000 2,071,203,000  2,065,739,000 1,946,525,000 1,945,753,000 
      cumulative net income
    		  3,950,345,000 3,976,534,000 3,952,384,000 3,926,979,000 3,900,430,000 3,874,284,000 3,858,500,000 3,835,815,000 3,814,940,000 3,802,750,000 3,799,854,000 3,798,552,000 3,800,186,000 3,802,994,000 3,804,930,000 3,814,948,000 3,816,614,000 3,816,245,000 3,788,413,000 3,363,654,000 3,347,664,000 3,323,778,000 3,081,492,000 2,870,974,000 2,855,557,000 2,822,793,000 2,785,760,000 2,596,259,000 2,617,820,000 2,584,608,000 2,590,417,000 2,566,603,000 2,554,343,000 2,467,955,000 2,380,111,000 2,333,709,000 2,290,564,000 2,260,098,000 2,247,482,000 2,233,852,000 2,392,413,000 2,235,673,000 2,230,288,000 2,215,141,000 2,431,456,000 2,412,567,000 2,539,684,000 2,522,066,000 2,506,001,000 2,467,448,000 2,438,913,000 2,418,949,000 2,350,033,000 2,284,223,000 2,274,225,000 2,247,181,000 2,174,982,000 2,115,366,000 2,008,791,000 1,923,067,000 1,855,015,000 1,827,609,000  1,767,976,000 1,736,502,000 1,703,354,000 1,665,477,000 1,634,123,000 1,602,609,000 1,452,774,000 1,409,068,000 1,370,771,000 1,320,025,000 1,287,790,000 1,245,797,000 1,209,396,000 1,174,336,000 1,124,961,000 1,089,797,000 1,065,178,000 1,037,807,000 1,010,515,000 
      cumulative common distributions
    		  -4,863,688,000 -4,864,499,000 -4,864,195,000 -4,864,440,000 -4,865,190,000 -4,865,668,000 -4,866,401,000 -4,393,522,000 -4,393,290,000 -4,281,442,000 -4,280,826,000 -4,281,195,000 -4,281,754,000 -4,281,670,000 -4,283,753,000 -4,283,668,000 -4,284,050,000 -3,852,856,000 -3,852,856,000 -3,851,666,000 -3,851,947,000 -3,420,406,000 -3,420,512,000 -3,420,548,000 -3,418,995,000 -3,111,868,000 -3,111,868,000 -3,111,868,000 -3,111,868,000 -3,111,868,000 -3,111,868,000 -3,111,868,000 -3,111,868,000 -3,111,868,000 -3,111,868,000 -3,111,868,000 -3,111,868,000 -3,111,868,000 -3,111,868,000 -3,111,868,000 -3,111,868,000                                          
      cumulative preferred distributions
    		  -739,667,000 -737,670,000 -735,673,000 -733,676,000 -731,679,000 -729,682,000 -727,685,000 -725,688,000 -723,691,000 -721,694,000 -719,697,000 -717,700,000 -715,703,000 -713,706,000 -711,709,000 -709,712,000 -707,715,000 -705,718,000 -703,721,000 -701,724,000 -699,727,000 -697,730,000 -695,733,000 -693,736,000 -693,736,000 -689,742,000 -687,745,000 -685,748,000 -683,751,000 -681,754,000 -679,757,000 -677,760,000 -675,763,000 -673,766,000 -657,176,000 -650,195,000 -643,214,000 -636,233,000 -629,252,000 -622,271,000 -622,275,000                                          
      total shareholders’ equity
    		  2,409,715,000 2,434,284,000 2,408,352,000 2,385,067,000 2,354,263,000 2,383,975,000 2,361,417,000 2,816,528,000 2,823,453,000 2,938,429,000 2,972,977,000 3,048,728,000 3,205,313,000 3,225,297,000 3,225,176,000 3,236,678,000 3,236,620,000 3,666,394,000 3,637,580,000 3,244,577,000 3,226,825,000 3,634,173,000 3,390,289,000 3,182,801,000 3,168,318,000 3,441,014,000 3,400,290,000 3,299,366,000 3,323,560,000 3,285,335,000 3,285,483,000 3,260,447,000 3,289,040,000 3,198,638,000 3,387,371,000 3,368,487,000 3,327,208,000 3,387,230,000 3,311,178,000  3,489,003,000 3,370,888,000 3,359,070,000 3,421,033,000 4,072,477,000 4,126,730,000 3,500,124,000 3,682,126,000 3,723,030,000 3,592,297,000 3,388,174,000 3,139,785,000 3,313,845,000 3,108,523,000 3,149,937,000 2,963,165,000 2,929,959,000 2,909,752,000 2,918,108,000 2,878,478,000 2,870,279,000 2,902,883,000  2,961,698,000 2,979,177,000 2,950,768,000 2,641,881,000 2,663,253,000 2,683,827,000 2,645,486,000 2,657,350,000 2,547,047,000 2,549,709,000 2,307,194,000 2,313,937,000 2,325,856,000 2,337,711,000 2,011,651,000 2,016,537,000 2,026,508,000 1,917,073,000 1,926,273,000 
      noncontrolling interest
    		  3,467,000 3,503,000 4,976,000 5,046,000 7,973,000 7,852,000 7,655,000 7,204,000 7,142,000 7,393,000 7,290,000 6,542,000 6,521,000 6,539,000 6,442,000 6,486,000 6,486,000 7,347,000 7,034,000 1,295,000 1,288,000 1,450,000 1,272,000 1,197,000 1,193,000 1,295,000 1,189,000 1,129,000 1,139,000 1,126,000 1,042,000                210,854,000 210,085,000 205,606,000                                  
      total equity
    		  2,413,182,000 2,437,787,000 2,413,328,000 2,390,113,000 2,362,236,000 2,391,827,000 2,369,072,000 2,823,732,000 2,830,595,000 2,945,822,000 2,980,267,000 3,055,270,000 3,211,834,000 3,231,836,000 3,231,618,000 3,243,164,000 3,243,106,000 3,673,741,000 3,644,614,000 3,245,872,000 3,228,113,000 3,635,623,000 3,391,561,000 3,183,998,000 3,169,511,000 3,442,309,000 3,401,479,000 3,300,495,000 3,324,699,000 3,286,461,000 3,286,525,000                                                    
      total liabilities and equity
    		  2,441,130,000 2,463,741,000 2,439,686,000 2,425,041,000 2,393,786,000 2,421,843,000 2,399,324,000 2,854,885,000 2,968,520,000 2,968,480,000 3,000,018,000 3,081,383,000 3,244,603,000 3,256,268,000 3,260,676,000 3,277,671,000 3,708,774,000 3,733,155,000 3,704,057,000 3,319,377,000 3,731,343,000 3,702,171,000 3,713,937,000 3,530,772,000 3,813,728,000 3,776,874,000 4,137,306,000 4,236,945,000 4,260,289,000 4,491,116,000 4,518,756,000                                                    
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 107,223,284 and 106,847,438 shares issued and outstanding, respectively
    		    1,072,000                                                                                
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 106,847,438 and 109,428,252 shares issued and outstanding, respectively
    		     1,068,000                                                                               
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 106,712,046 and 109,428,252 shares issued and outstanding, respectively
    		      1,067,000                                                                              
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 109,730,457 and 109,428,252 shares issued and outstanding, respectively
    		       1,097,000                                                                             
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 109,701,592 and 109,428,252 shares issued and outstanding, respectively
    		        1,097,000                                                                            
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 109,428,252 and 115,205,818 shares issued and outstanding, respectively
    		         1,094,000                                                                           
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 110,651,571 and 115,205,818 shares issued and outstanding, respectively
    		          1,106,000                                                                          
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 111,241,842 and 115,205,818 shares issued and outstanding, respectively
    		           1,112,000                                                                         
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 112,670,401 and 115,205,818 shares issued and outstanding, respectively
    		            1,127,000                                                                        
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 115,205,818 and 121,522,555 shares issued and outstanding, respectively
    		             1,152,000                                                                       
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 121,511,102 and 121,522,555 shares issued and outstanding, respectively
    		              1,215,000                                                                      
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 121,940,355 and 121,522,555 shares issued and outstanding, respectively
    		               1,219,000                                                                     
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 121,916,875 and 121,522,555 shares issued and outstanding, respectively
    		                1,219,000                                                                    
      restricted cash
    		                   4,103,000 3,174,000 5,003,000 4,456,000 2,310,000 1,767,000 3,298,000 9,708,000 8,419,000 6,995,000 8,897,000 7,657,000 6,594,000 6,155,000 6,532,000 36,755,000 33,777,000 36,190,000 32,245,000 28,463,000 31,351,000 33,349,000 17,715,000 15,554,000 22,829,000 17,441,000 17,443,000 18,009,000 14,723,000 13,631,000 14,329,000 17,195,000 10,102,000 5,109,000 5,530,000 7,075,000 12,474,000 10,490,000 11,638,000 8,993,000 9,880,000 79,944,000 94,105,000 11,543,000 18,027,000 17,410,000 16,571,000 14,235,000 21,635,000 22,775,000 15,931,000 13,316,000 18,348,000 17,095,000 22,282,000 19,838,000 22,257,000 20,653,000 8,608,000 7,086,000 9,163,000 8,604,000 6,616,000 3,632,000 9,415,000 
      mortgage note payable
    		                                                                                    
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 121,522,555 and 121,924,199 shares issued and outstanding, respectively
    		                 1,215,000                                                                   
      mortgage notes payable
    		                   25,281,000 25,487,000 25,691,000 25,896,000 26,091,000 26,288,000 26,482,000 31,643,000 31,964,000 32,281,000 32,594,000 34,999,000 35,401,000 77,178,000 77,717,000 243,993,000 244,850,000 245,691,000 249,732,000 367,713,000 513,561,000 606,423,000 609,249,000 619,760,000 895,231,000 898,804,000 925,120,000 977,044,000 980,985,000 869,384,000 801,709,000 784,454,000 633,935,000 380,597,000 350,462,000 352,575,000 620,137,000 622,127,000 442,071,000 443,908,000 445,705,000 387,090,000 380,116,000 363,555,000 394,376,000 397,435,000 410,892,000 413,836,000 416,058,000 388,743,000 390,495,000 379,959,000 374,165,000 347,088,000 434,346,000 437,667,000 440,407,000 438,085,000 325,976,000 327,582,000 328,510,000 333,222,000 333,848,000 335,055,000 335,797,000 
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 121,524,510 and 121,924,199 shares issued and outstanding, respectively
    		                  1,215,000                                                                  
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 121,521,624 and 121,924,199 shares issued and outstanding, respectively
    		                   1,215,000                                                                 
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 121,502,520 and 121,924,199 shares issued and outstanding, respectively
    		                    1,215,000                                                                
      marketable securities
    		                         249,602,000 248,838,000 248,275,000 247,879,000 276,928,000 279,626,000 278,072,000 275,597,000                                                    
      senior unsecured debt
    		                        248,689,000 248,473,000 248,258,000 248,048,000 646,246,000 815,984,000 815,577,000 1,064,954,000 1,064,450,000 1,063,950,000 1,313,267,000 1,312,707,000 1,312,148,000 1,460,592,000 1,460,360,000 1,460,131,000 1,598,652,000 1,598,416,000 1,823,182,000 1,856,373,000 1,856,135,000 1,954,701,000 2,304,465,000 2,304,229,000 3,029,652,000 2,695,152,000 2,694,780,000 2,687,600,000 2,687,172,000 2,686,745,000 2,474,116,000 2,259,137,000 2,258,801,000 2,133,130,000 2,132,795,000 2,209,804,000 2,240,865,000 2,240,504,000 2,240,144,000 2,239,784,000 2,239,424,000 1,991,241,000 1,941,469,000 1,941,173,000 1,940,878,000 1,940,582,000 1,940,287,000 1,889,991,000 1,640,455,000 1,640,178,000 1,639,901,000 1,739,624,000         
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 121,924,199 and 121,572,155 shares issued and outstanding, respectively
    		                     1,219,000 1,219,000                                                              
      cumulative other comprehensive loss
    		                         -342,000 -1,006,000 -1,469,000 -2,106,000 -95,000   -1,002,000 -208,000 -1,117,000 -2,234,000 -3,014,000 -3,687,000 -5,142,000 -5,963,000 -72,228,000 -53,216,000 -39,765,000                                          
      shareholders' equity:
    		                                                                                    
      series d preferred shares; 6 1/2% cumulative convertible; 4,915,196 shares issued and outstanding, aggregate liquidation preference of 122,880
    		                      119,263,000 119,263,000 119,263,000 119,263,000 119,263,000 119,263,000 119,263,000 119,263,000 119,263,000 119,263,000 119,263,000  119,263,000 119,263,000 119,263,000                                                
      acquired real estate leases
    		                       92,000 183,000 275,000 596,000 2,946,000 3,621,000 23,847,000 28,108,000 42,719,000 45,482,000 48,281,000 52,017,000 70,724,000 83,121,000 88,760,000 99,017,000 121,912,000 184,894,000 198,287,000 212,584,000 227,197,000 244,634,000 272,381,000 394,978,000 416,763,000 371,929,000 364,282,000 374,022,000 360,293,000 287,241,000 270,676,000 179,357,000 175,130,000 156,877,000 163,753,000 157,428,000 159,428,000 160,401,000 151,869,000 162,007,000 150,672,000 156,743,000 163,224,000 162,538,000 167,879,000 164,155,000 173,510,000 177,279,000 161,787,000 150,761,000 149,087,000 142,451,000 149,063,000 139,607,000 67,994,000 67,569,000 68,983,000 45,651,000    
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 121,922,120 and 121,572,155 shares issued and outstanding, respectively
    		                       1,219,000                                                             
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 121,899,625 and 121,572,155 shares issued and outstanding, respectively
    		                        1,219,000                                                            
      rents receivable, net of allowance for doubtful accounts of 4,974 and 4,771, respectively
    		                         51,089,000                                                           
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 121,572,155 and 124,217,616 shares issued and outstanding, respectively
    		                         1,216,000                                                           
      rents receivable, net of allowance for doubtful accounts of 5,816 and 4,771, respectively
    		                          50,103,000                                                          
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 121,482,673 and 124,217,616 shares issued and outstanding, respectively
    		                          1,215,000 1,215,000                                                         
      rents receivable, net of allowance for doubtful accounts of 5,101 and 4,771, respectively
    		                           57,347,000                                                         
      rents receivable, net of allowance for doubtful accounts of 5,137 and 4,771, respectively
    		                            55,910,000                                                        
      assumed real estate lease obligations
    		                            503,000 1,001,000 1,215,000 1,429,000 1,630,000 1,946,000 2,140,000 2,761,000 3,624,000 4,296,000 4,890,000 5,728,000 24,220,000 26,784,000 28,950,000 31,354,000 33,064,000 38,087,000 62,270,000 66,576,000 70,587,000 69,237,000 72,392,000 72,619,000 69,836,000                                
      security deposits
    		                            4,412,000 4,735,000 5,938,000 5,957,000 6,957,000 8,160,000 8,128,000 9,154,000 9,670,000 10,338,000 10,722,000 10,610,000 14,095,000 14,044,000 13,648,000 13,852,000 13,682,000 12,442,000 24,031,000 23,822,000 24,191,000 24,489,000 24,024,000 23,710,000 23,284,000 22,726,000 22,903,000 22,090,000 23,008,000 21,404,000 21,375,000 17,722,000 17,644,000 12,597,000 16,724,000 16,063,000 16,031,000 16,076,000 15,870,000 15,972,000 15,154,000 15,081,000 14,577,000 13,679,000 13,536,000 12,718,000 12,033,000 11,920,000 11,510,000 9,724,000 9,602,000 9,520,000 9,299,000 8,591,000 8,819,000 8,444,000 
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 121,457,073 and 124,217,616 shares issued and outstanding, respectively
    		                            1,214,000                                                        
      properties held for sale
    		                             97,688,000   64,396,000  13,463,000 150,766,000 20,347,000  112,150,000 360,781,000     214,677,000 678,250,000 128,529,000 159,501,000    43,573,000 51,127,000 51,249,000 8,297,000 160,459,000 8,290,000 11,178,000 105,234,000 135,760,000 219,666,000 311,665,000       2,725,000 10,709,000 10,726,000              
      rents receivable, net of allowance for doubtful accounts of 4,771 and 5,105, respectively
    		                             93,436,000                                                       
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 124,217,616 and 123,994,465 shares issued and outstanding, respectively
    		                             1,242,000                                                       
      rents receivable, net of allowance for doubtful accounts of 4,217 and 5,105, respectively
    		                              107,832,000                                                      
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 124,089,443 and 123,994,465 shares issued and outstanding, respectively
    		                              1,241,000 1,241,000                                                     
      cumulative other comprehensive income
    		                              2,671,000 1,235,000                2,577,000     18,363,000 11,098,000                               
      rents receivable, net of allowance for doubtful accounts of 4,352 and 5,105, respectively
    		                               115,371,000                                                     
      rents receivable, net of allowance for doubtful accounts of 4,593 and 5,105, respectively
    		                                152,081,000                                                    
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 124,064,195 and 123,994,465 shares issued and outstanding, respectively
    		                                1,240,000                                                    
      rents receivable, net of allowance for doubtful accounts of 5,105 and 7,715, respectively
    		                                 152,031,000                                                   
      liabilities and shareholders’ equity
    		                                                                                    
      series d preferred shares; 6 1/2% cumulative convertible; 4,915,196 shares issued and outstanding, respectively, aggregate liquidation preference of 122,880
    		                                 119,263,000                                                   
      series e preferred shares; 7 1/4% cumulative redeemable on or after may 15, 2016; 0 and 11,000,000 shares issued and outstanding, respectively, aggregate liquidation preference 0 and 275,000, respectively
    		                                                                                    
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 123,994,465 and 126,349,914 shares issued and outstanding, respectively
    		                                 1,240,000                                                   
      total liabilities and shareholders’ equity
    		                                 4,526,075,000 4,965,767,000 4,911,775,000 5,103,149,000 5,244,372,000 5,324,243,000 5,548,046,000 5,734,296,000  6,170,796,000 6,593,360,000 6,600,714,000 6,821,987,000 8,019,538,000 8,082,668,000 7,946,955,000 7,798,584,000 7,713,391,000 7,458,190,000 6,959,999,000 6,689,687,000 6,373,775,000 6,205,018,000 6,234,751,000 6,007,527,000 5,926,090,000 6,070,451,000 6,070,543,000 6,003,146,000 5,959,846,000 5,859,332,000  5,750,889,000 5,636,768,000 5,575,949,000 5,454,778,000 5,441,519,000 5,355,189,000 5,327,167,000 5,154,048,000 5,012,423,000 4,823,683,000 4,813,330,000 4,752,257,000 4,045,756,000 4,027,411,000 4,013,244,000 3,494,801,000    
      rents receivable, net of allowance for doubtful accounts of 4,515 and 7,715, respectively
    		                                  150,728,000                                                  
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 125,532,523 and 126,349,914 shares issued and outstanding, respectively
    		                                  1,255,000                                                  
      rents receivable, net of allowance for doubtful accounts of 4,431 and 7,715, respectively
    		                                   169,800,000                                                 
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 125,533,376 and 126,349,914 shares issued and outstanding, respectively
    		                                   1,255,000                                                 
      rents receivable, net of allowance for doubtful accounts of 4,193 and 7,715, respectively
    		                                    176,740,000                                                
      series e preferred shares; 7 1/4% cumulative redeemable on or after may 15, 2016; 11,000,000 shares issued and outstanding, aggregate liquidation preference 275,000
    		                                    265,391,000 265,391,000 265,391,000 265,391,000 265,391,000 265,391,000 265,391,000 265,391,000 265,391,000 265,391,000 265,391,000 265,391,000 265,391,000 265,391,000                                   
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 125,502,748 and 126,349,914 shares issued and outstanding, respectively
    		                                    1,255,000                                                
      rents receivable, net of allowance for doubtful accounts of 7,715 and 6,565, respectively
    		                                     174,676,000                                               
      series d preferred shares; 6 1/2% cumulative convertible; 4,915,196 and 4,915,497 shares issued and outstanding, respectively, aggregate liquidation preference of 122,880 and 122,887, respectively
    		                                     119,263,000 119,263,000 119,263,000 119,263,000                                            
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 126,349,914 and 129,607,279 shares issued and outstanding, respectively
    		                                     1,263,000 1,263,000                                              
      rents receivable, net of allowance for doubtful accounts of 9,281 and 6,565, respectively
    		                                      184,679,000                                              
      rents receivable, net of allowance for doubtful accounts of 10,008 and 6,565, respectively
    		                                       209,089,000                                             
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 129,760,214 and 129,607,279 shares issued and outstanding, respectively
    		                                       1,298,000                                             
      rents receivable, net of allowance for doubtful accounts of 8,110 and 6,565, respectively
    		                                        249,408,000                                            
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 129,733,742 and 129,607,279 shares issued and outstanding, respectively
    		                                        1,297,000                                            
      equity investments
    		                                           531,862,000 518,934,000 517,254,000 11,407,000 11,394,000 178,996,000 180,237,000 176,255,000 178,652,000 168,871,000 170,100,000 173,721,000 166,626,000 173,619,000 161,045,000 158,053,000                  218,174,000 220,445,000 222,589,000 260,208,000 255,361,000 258,326,000 261,524,000 264,087,000 
      rents receivable, net of allowance for doubtful accounts of 6,565 and 7,885, respectively
    		                                         248,101,000                                           
      liabilities and shareholders' equity
    		                                                                                    
      revolving credit facility
    		                                           235,000,000 235,000,000 235,000,000 135,000,000 135,000,000 160,000,000   235,000,000 230,000,000 270,000,000    241,000,000 201,000,000 297,000,000 303,000,000 301,000,000 308,000,000 140,000,000 38,000,000 212,000,000 144,000,000 40,000,000 310,000,000 280,000,000 193,000,000 256,000,000 346,000,000 236,000,000 80,000,000 175,000,000 95,000,000 27,000,000  412,000,000 160,000,000    
      due to related persons
    		                                           22,984,000 15,793,000 6,564,000 12,954,000 14,636,000 31,942,000 14,664,000 13,667,000 28,448,000                                 
      shareholders' equity attributable to equity commonwealth:
    		                                                                                    
      preferred shares of beneficial interest, 0.01 par value; 50,000,000 shares authorized:
    		                                                                                    
      series d preferred shares; 6 1/2% cumulative convertible; 4,915,497 and 15,180,000 shares issued and outstanding, respectively, aggregate liquidation preference of 122,887 and 379,500, respectively
    		                                         119,266,000 119,266,000                                          
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 129,607,279 and 118,386,918 shares issued and outstanding, respectively
    		                                         1,296,000                                           
      total shareholders' equity
    		                                         3,319,583,000                                           
      total liabilities and shareholders' equity
    		                                         5,761,639,000                                           
      rents receivable, net of allowance for doubtful accounts of 7,013 and 7,885, respectively
    		                                          238,207,000                                          
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 128,893,552 and 118,386,918 shares issued and outstanding, respectively
    		                                          1,289,000                                          
      rents receivable, net of allowance for doubtful accounts of 7,451 and 7,885, respectively
    		                                           238,033,000                                         
      series d preferred shares; 6 1/2% cumulative convertible; 4,916,997 and 15,180,000 shares issued and outstanding, respectively, aggregate liquidation preference of 122,925 and 379,500, respectively
    		                                           119,286,000                                         
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 128,859,923 and 118,386,918 shares issued and outstanding, respectively
    		                                           1,289,000                                         
      rents receivable, net of allowance for doubtful accounts of 7,462 and 7,885, respectively
    		                                            239,766,000                                        
      series d preferred shares; 6 1/2% cumulative convertible; 15,180,000 shares issued and outstanding, aggregate liquidation preference 379,500
    		                                            368,270,000 368,270,000 368,270,000 368,270,000 368,270,000 368,270,000 368,270,000 368,270,000 368,270,000 368,270,000 368,270,000 368,270,000 368,270,000 368,270,000 368,270,000 368,270,000 368,270,000 368,270,000 368,270,000 368,270,000  368,270,000 368,270,000                  
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 118,413,730 and 118,386,918 shares issued and outstanding, respectively
    		                                            1,184,000                                        
      rents receivable, net of allowance for doubtful accounts of 7,750 and 9,962, respectively
    		                                             218,301,000                                       
      sir revolving credit facility
    		                                              235,000,000 238,000,000 92,000,000 321,000,000 227,000,000                                  
      shareholders’ equity attributable to commonwealth reit:
    		                                                                                    
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 118,387,518 and 83,804,068 shares issued and outstanding, respectively
    		                                             1,184,000                                       
      total shareholders’ equity attributable to commonwealth reit
    		                                             3,421,033,000 3,671,141,000 3,728,032,000 3,289,270,000 3,472,041,000 3,517,424,000                                  
      noncontrolling interest in consolidated subsidiary
    		                                              401,336,000 398,698,000                                     
      rents receivable, net of allowance for doubtful accounts of 8,769 and 9,962, respectively
    		                                              274,988,000                                      
      common shares of beneficial interest, 0.01 par value: 350,000,000 shares authorized; 118,314,068 and 83,804,068 shares issued and outstanding, respectively
    		                                              1,183,000                                      
      rents receivable, net of allowance for doubtful accounts of 9,962
    		                                               267,733,000                                     
      preferred shares of beneficial interest, 0.01 par value:
    		                                                                                    
      50,000,000 shares authorized;
    		                                                                                    
      common shares of beneficial interest, 0.01 par value:
    		                                                                                    
      350,000,000 shares authorized; 118,304,068 and 83,804,068 shares issued and outstanding, respectively
    		                                               1,183,000                                     
      rents receivable, net of allowance for doubtful accounts of 11,798 and 12,575, respectively
    		                                                246,313,000                                    
      series c preferred shares; 7 1/8% cumulative redeemable since february 15, 2011; zero and 6,000,000 shares issued and outstanding, respectively, aggregate liquidation preference 150,000
    		                                                                                    
      350,000,000 shares authorized; 83,804,068 and 83,721,736 shares issued and outstanding, respectively
    		                                                838,000                                    
      rents receivable, net of allowance for doubtful accounts of 12,427 and 12,575, respectively
    		                                                 236,001,000                                   
      series c preferred shares; 7 1/8% cumulative redeemable since february 15, 2011; 6,000,000 shares issued and outstanding, aggregate liquidation preference 150,000
    		                                                 145,015,000 145,015,000 145,015,000                                 
      350,000,000 shares authorized; 83,730,451 and 83,721,736 shares issued and outstanding, respectively
    		                                                 837,000                                   
      rents receivable, net of allowance for doubtful accounts of 11,835 and 12,575, respectively
    		                                                  226,565,000                                  
      series e preferred shares; 7 1/4% cumulative redeemable on or after may 15, 2016; 11,000,000 issued and outstanding, aggregate liquidation preference 275,000
    		                                                  265,391,000                                  
      350,000,000 shares authorized; 83,721,736 shares issued and outstanding
    		                                                  837,000                                  
      rents receivable, net of allowance for doubtful accounts of 12,421 and 12,550, respectively
    		                                                   212,737,000                                 
      series e preferred shares; 7 1/4% cumulative redeemable on or after may 15, 2016; 11,000,000 and zero shares issued and outstanding, respectively, aggregate liquidation preference 275,000
    		                                                   265,391,000                                 
      350,000,000 shares authorized; 83,721,736 and 72,138,686 shares issued and outstanding, respectively
    		                                                   837,000                                 
      rents receivable, net of allowance for doubtful accounts of 12,316 and 12,550, respectively
    		                                                    203,304,000                                
      due to affiliates
    		                                                    11,621,000 11,488,000 25,602,000 9,096,000 10,288,000 28,717,000 17,705,000 13,357,000 22,453,000 12,819,000 11,329,000 10,399,000 23,228,000 8,193,000 7,448,000 12,708,000 19,643,000 7,545,000 9,636,000 10,876,000 25,813,000 11,454,000 6,566,000 16,418,000 30,820,000 6,255,000 5,882,000 8,370,000 14,667,000 9,742,000 9,804,000 6,309,000 
      series c preferred shares; 7 1/8% cumulative redeemable at par on or after february 15, 2011; 6,000,000 shares issued and outstanding, aggregate liquidation preference 150,000
    		                                                    145,015,000 145,015,000 145,015,000 145,015,000 145,015,000 145,015,000 145,015,000 145,015,000 145,015,000 145,015,000 145,015,000 145,015,000  145,015,000                   
      series e preferred shares; 7 1/4% cumulative redeemable at par on or after may 15, 2016; 11,000,000 and zero shares issued and outstanding, respectively, aggregate liquidation preference 275,000
    		                                                    265,804,000                                
      350,000,000 shares authorized; 72,148,686 and 72,138,686 shares issued and outstanding, respectively
    		                                                    721,000                                
      rents receivable, net of allowance for doubtful accounts of 12,175 and 12,550, respectively
    		                                                     205,691,000                               
      other liabilities related to properties held for sale
    		                                                     297,000 11,000 451,000 8,000 23,000 2,987,000 3,451,000 3,809,000                        
      acquired real estate lease obligations
    		                                                     65,130,000 43,513,000 44,549,000 45,226,000 49,398,000 46,989,000 45,577,000 50,338,000 42,375,000 43,268,000 41,607,000 39,612,000 40,942,000 40,757,000 41,833,000 42,472,000 44,300,000 43,711,000 38,987,000 38,753,000 39,495,000 38,428,000 39,843,000 39,423,000 31,469,000 32,096,000 33,206,000 16,835,000    
      350,000,000 shares authorized; 72,138,686 shares issued and outstanding
    		                                                     721,000                               
      rents receivable, net of allowance for doubtful accounts of 12,415 and 10,945, respectively
    		                                                      198,899,000                              
      series b preferred shares; 8 3/4% cumulative redeemable at par on or after september 12, 2007; 7,000,000 shares issued and outstanding, aggregate liquidation preference 175,000
    		                                                      169,079,000 169,079,000 169,079,000 169,079,000 169,079,000 169,079,000 169,079,000 169,079,000 169,079,000                      
      350,000,000 shares authorized; 72,138,686 and 55,965,061 shares issued and outstanding, respectively
    		                                                      721,000                              
      rents receivable, net of allowance for doubtful accounts of 11,779 and 10,945, respectively
    		                                                       196,781,000                             
      350,000,000 shares authorized; 64,596,310 and 55,965,060 shares issued and outstanding, respectively
    		                                                       646,000                             
      accumulated other comprehensive income
    		                                                                                    
      rents receivable, net of allowance for doubtful accounts of 11,539 and 10,945, respectively
    		                                                        203,044,000                            
      350,000,000 shares authorized; 258,360,241 and 223,860,241 shares issued and outstanding, respectively
    		                                                        2,584,000                            
      rents receivable, net of allowance for doubtful accounts of 10,910 and 8,492, respectively
    		                                                         187,495,000                           
      350,000,000 shares authorized; 223,860,241 and 227,731,938 shares issued and outstanding, respectively
    		                                                         2,239,000                           
      rents receivable, net of allowance for doubtful accounts of 8,351 and 8,492, respectively
    		                                                          188,512,000                          
      350,000,000 shares authorized; 223,708,241 and 227,731,938 shares issued and outstanding, respectively
    		                                                          2,237,000                          
      rents receivable, net of allowance for doubtful accounts of 8,305 and 8,492, respectively
    		                                                           203,034,000                         
      350,000,000 shares authorized; 223,683,241 and 227,731,938 shares issued and outstanding, respectively
    		                                                           2,237,000                         
      rents receivable, net of allowance for doubtful accounts of 8,494 and 6,290, respectively
    		                                                            181,998,000                        
      350,000,000 shares authorized; 227,695,938 and 225,444,497 shares issued and outstanding, respectively
    		                                                            2,277,000                        
      rents receivable, net of allowance for doubtful accounts of 8,082 and 6,290, respectively
    		                                                             174,677,000                       
      mortgage notes payable and other liabilities related to properties held for sale
    		                                                             16,271,000                       
      350,000,000 shares authorized; 225,464,497 and 225,444,497 shares issued and outstanding, respectively
    		                                                             2,255,000                       
      rents receivable, net of allowance for doubtful accounts of 7,728 and 6,290, respectively
    		                                                              202,335,000                      
      350,000,000 shares authorized; 225,444,497 shares issued and outstanding
    		                                                              2,254,000                      
      rents receivable, net of allowance for doubtful accounts of 6,290 and 4,737, respectively
    		                                                               197,967,000                     
      dividends payable
    		                                                                   44,111,000                 
      series b preferred shares; 8 3/4% cumulative redeemable at par on or after september 12, 2007; 7,000,000 and 12,000,000 shares issued and outstanding, respectively, aggregate liquidation preference 175,000 and 300,000, respectively
    		                                                               169,079,000                     
      350,000,000 shares authorized; 225,444,497 and 210,051,590 shares issued and outstanding, respectively
    		                                                               2,254,000                     
      rents receivable, net of allowance for doubtful accounts of 5,810 and 4,737, respectively
    		                                                                191,591,000                    
      rents receivable, net of allowance for doubtful accounts of 5,830 and 4,737, respectively
    		                                                                 182,980,000                   
      series b preferred shares; 8 ¾% cumulative redeemable at par on or after september 12, 2007; 12,000,000 shares issued and outstanding, aggregate liquidation preference 300,000
    		                                                                 289,849,000                   
      300,000,000 shares authorized; 211,946,590 and 210,051,590 shares issued and outstanding, respectively
    		                                                                 2,119,000                   
      rents receivable, net of allowance for doubtful accounts of 5,754 and 4,737, respectively
    		                                                                  181,752,000                  
      series b preferred shares; 8 3/4% cumulative redeemable at par on september 12, 2007; 12,000,000 shares issued and outstanding, aggregate liquidation preference 300,000
    		                                                                  289,849,000 289,849,000    289,849,000             
      series c preferred shares; 7 1/8% cumulative redeemable at par on february 15, 2011; 6,000,000 shares issued and outstanding, aggregate liquidation preference 150,000
    		                                                                  145,015,000                  
      common shares of beneficial interest, 0.01 par value: 300,000,000 shares authorized; 211,056,590 and 210,051,590 shares issued and outstanding, respectively
    		                                                                  2,111,000                  
      rents receivable, net of allowance for doubtful accounts of 4,737 and 3,767, respectively
    		                                                                   172,566,000                 
      series a preferred shares; 9 7/8% cumulative redeemable at par on february 22, 2006; zero and 8,000,000 shares issued and outstanding, respectively, aggregate liquidation preference 200,000
    		                                                                                    
      series c preferred shares; 7 1/8% cumulative redeemable at par on february 15, 2011; 6,000,000 and zero shares issued and outstanding, respectively, aggregate liquidation preference 150,000
    		                                                                   145,015,000 145,015,000  145,015,000              
      series d preferred shares; 6 1/2% cumulative convertible; 15,180,000 and zero shares issued and outstanding, respectively, aggregate liquidation preference 379,500
    		                                                                   368,270,000                 
      300,000,000 shares authorized; 210,051,590 and 209,860,625 shares issued and outstanding, respectively
    		                                                                   2,101,000                 
      equity investments in former subsidiaries
    		                                                                       194,297,000 205,498,000 207,655,000 205,547,000 207,804,000         
      rents receivable, net of allowance for doubtful accounts of 3,696 and 3,767, respectively
    		                                                                    165,691,000                
      series b preferred shares; 8 ¾% cumulative redeemable at par on september 12, 2007; 12,000,000 shares issued and outstanding, aggregate liquidation preference 300,000
    		                                                                    289,849,000 289,849,000 289,849,000    289,849,000 289,849,000         
      common shares of beneficial interest, 0.01 par value: 250,000,000 shares authorized; 210,036,590 and 209,860,625 shares issued and outstanding, respectively
    		                                                                    2,100,000                
      rents receivable, net of allowance for doubtful accounts of 3,862 and 3,767, respectively
    		                                                                     159,320,000               
      series a preferred shares; 9 7¤8% cumulative redeemable at par on february 22, 2006; zero and 8,000,000 shares issued and outstanding, respectively, aggregate liquidation preference 200,000
    		                                                                                    
      series c preferred shares; 7 1¤8% cumulative redeemable at par on february 15, 2011; 6,000,000 and zero shares issued and outstanding, respectively, aggregate liquidation preference 150,000
    		                                                                     145,015,000               
      common shares of beneficial interest, 0.01 par value: 250,000,000 shares authorized; 209,985,540 and 209,860,625 shares issued and outstanding, respectively
    		                                                                     2,100,000               
      rents receivable, net of allowance for doubtful accounts of 3,910 and 3,767, respectively
    		                                                                      158,022,000              
      common shares of beneficial interest, 0.01 par value: 250,000,000 shares authorized; 209,860,625 shares issued and outstanding
    		                                                                      2,099,000              
      rents receivable, net of allowance for doubtful accounts of 3,767 and 4,594, respectively
    		                                                                       145,385,000             
      series a preferred shares; 9 7/8% cumulative redeemable at par on february 22, 2006; 8,000,000 shares issued and outstanding, aggregate liquidation preference 200,000
    		                                                                       193,086,000   193,086,000 193,086,000         
      250,000,000 shares authorized; 209,860,625 and 177,316,525 shares issued and outstanding, respectively
    		                                                                       2,099,000             
      rents receivable, net of allowance for doubtful accounts of 3,688 and 4,594, respectively
    		                                                                        134,921,000            
      series a preferred shares; 9 7/8% cumulative, redeemable at par on february 22, 2006; 8,000,000 shares outstanding, aggregate liquidation preference 200,000
    		                                                                        193,086,000 193,086,000           
      series b preferred shares; 8 ¾% cumulative, redeemable at par on september 12, 2007; 12,000,000 shares outstanding, aggregate liquidation preference 300,000
    		                                                                        289,849,000 289,849,000           
      common shares of beneficial interest, 0.01 par value: 250,000,000 shares authorized; 209,860,625 and 177,316,525 shares outstanding, respectively
    		                                                                        2,099,000            
      real estate properties, at cost:
    		                                                                                    
      rents receivable, net of allowance for doubtful accounts of 3,388 and 4,594, respectively
    		                                                                         126,621,000           
      225,000,000 shares authorized; 199,821,025 and 177,316,525 shares outstanding, respectively
    		                                                                         1,998,000           
      rents receivable, net of allowance for doubtful accounts of 4,420 and 4,594, respectively
    		                                                                          119,465,000          
      common shares of beneficial interest, 0.01 par value: 225,000,000 shares authorized; 199,816,525 and 177,316,525 shares issued and outstanding, respectively
    		                                                                          1,998,000          
      rents receivable, net of allowance for doubtful accounts of 4,594 and 4,568, respectively
    		                                                                           113,504,000         
      common shares of beneficial interest, 0.01 par value: 200,000,000 shares authorized; 177,316,525 and 142,773,925 shares issued and outstanding, respectively
    		                                                                           1,773,000         
      rents receivable, net of allowance for doubtful accounts of 3,558 and 4,568, respectively
    		                                                                            104,840,000        
      term loan
    		                                                                            350,000,000 250,000,000 250,000,000      
      senior notes payable
    		                                                                            1,389,345,000 993,678,000 993,494,000 1,136,311,000 886,681,000 886,511,000 951,341,000 843,180,000 
      preferred shares of beneficial interest, 0.01 par value, 50,000,000 shares authorized:
    		                                                                                    
      series a preferred shares; 9 7/8% cumulative redeemable; 8,000,000 shares issued and outstanding, aggregate liquidation preference 200,000
    		                                                                            193,086,000 193,086,000       
      series b preferred shares; 8 3/4% cumulative redeemable; 12,000,000 shares issued and outstanding, aggregate liquidation preference 300,000
    		                                                                            289,849,000        
      common shares of beneficial interest, 0.01 par value, 200,000,000 shares authorized: 177,316,525 and 142,773,925 shares issued and outstanding, respectively
    		                                                                            1,773,000        
      preferred shares of beneficial interest, 0.01 par value, 50,000,000 share authorized:
    		                                                                                    
      series b preferred shares; 8 ¾% cumulative redeemable; 12,000,000 shares issued and outstanding, aggregate liquidation preference 300,000
    		                                                                             289,849,000       
      common shares of beneficial interest, 0.01 par value: 177,278,425 and 142,773,925 shares issued and outstanding, respectively
    		                                                                             1,773,000       
      series a, 8,000,000 shares issued and outstanding
    		                                                                              193,086,000 193,086,000 193,086,000 193,086,000 193,086,000 193,086,000 
      series b, 12,000,000 shares issued and outstanding
    		                                                                              289,849,000 289,849,000 289,849,000 289,849,000 289,849,000  
      common shares of beneficial interest, 0.01 par value: 177,273,925 and 142,773,925 shares issued and outstanding, respectively
    		                                                                              1,773,000      
      preferred shares of beneficial interest, 0.01 par value: 50,000,000 shares authorized:
    		                                                                                    
      common shares of beneficial interest, 0.01 par value: 200,000,000 shares authorized, 142,773,925 and 128,825,247 shares issued and outstanding, respectively
    		                                                                               1,428,000     
      common shares of beneficial interest, 0.01 par value: 142,774,177 and 128,825,247 shares issued and outstanding, respectively
    		                                                                                1,428,000    
      additional-paid in capital
    		                                                                                2,071,198,000    
      borrowings on revolving credit facility
    		                                                                                 41,000,000 40,000,000 37,000,000 
      common shares of beneficial interest, 0.01 par value: 175,000,000 shares authorized, 142,169,577 and 128,825,247 shares issued and outstanding, respectively
    		                                                                                 1,422,000   
      revenues:
    		                                                                                    
      rental income
    		                                                                                 121,613,000 120,590,000 413,790,000 
      interest and other income
    		                                                                                 107,000 43,000 3,176,000 
      total revenues
    		                                                                                 121,720,000 120,633,000 416,966,000 
      expenses:
    		                                                                                    
      operating expenses
    		                                                                                 45,686,000 46,025,000 152,614,000 
      interest
    		                                                                                 25,062,000 25,079,000 86,360,000 
      depreciation and amortization
    		                                                                                 20,895,000 20,274,000 68,750,000 
      general and administrative
    		                                                                                 4,872,000 4,500,000 16,815,000 
      loss on early extinguishment of debt
    		                                                                                 1,487,000   
      total expenses
    		                                                                                 98,002,000 97,629,000 324,539,000 
      income before equity in earnings of equity investments
    		                                                                                 23,718,000 23,004,000  
      equity in earnings of equity investments
    		                                                                                 3,653,000 4,288,000 19,261,000 
      loss on equity transaction of equity investments
    		                                                                                    
      net income
    		                                                                                 27,371,000 27,292,000 106,763,000 
      preferred distributions
    		                                                                                    
      net income available for common shareholders
    		                                                                                 15,871,000 15,792,000 79,138,000 
      weighted-average common shares outstanding
    		                                                                                 130,521,000 128,846,000 128,817,000 
      basic and diluted earnings per common share:
    		                                                                                    
      common shares of beneficial interest, 0.01 par value: 150,000,000 shares authorized, 128,918,077 and 128,825,247 shares issued and outstanding, respectively
    		                                                                                  1,289,000  
      early extinguishment of debt
    		                                                                                  1,751,000  
      less accumulated depreciation
    		                                                                                   284,548,000 
      deferred rents
    		                                                                                   10,935,000 
      series b, 12,000,000 and zero shares issued and outstanding, respectively
    		                                                                                   289,849,000 
      common shares of beneficial interest, 0.01 par value: 150,000,000 shares authorized, 128,825,247 and 128,808,747 shares issued and outstanding, respectively
    		                                                                                   1,288,000 
      unrealized holding losses on investments
    		                                                                                    
      reversal of impairment of assets
    		                                                                                    
      income before equity in earnings of equity investments, gain on sale of properties and extraordinary item
    		                                                                                   92,427,000 
      loss on equity transactions of equity investments
    		                                                                                    
      income before gain on sale of properties and extraordinary item
    		                                                                                   110,267,000 
      gain on sale of properties
    		                                                                                    
      income before extraordinary item
    		                                                                                   110,267,000 
      extraordinary item – early extinguishment of debt
    		                                                                                    
    The information provided in this report is taken from www.sec.gov and many other data providers. While we have conducted our best efforts to ensure that the parsed data is accurate, we cannot guarantee its accuracy. Please use caution and understand that any consequences of its use are your own responsibility.