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Equity Commonwealth Quarterly Balance Sheets Chart

Quarterly
 | 
Annual
 
 Cash and Cash Eq  
20200630 20200930 20201231 20210331 20210630 20210930 20211231 20220331 20220630 20220930 20221231 20230331 20230630 20230930 20231231 20240331 20240630 20240930 20241231 20250331 00.490.981.471.962.462.953.44Billion

Equity Commonwealth Quarterly Balance Sheets Table

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 equivalents227,271,000 160,511,000 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 assets386,000 613,000                                                                                   
  total assets227,657,000 293,624,000 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 liquidation50,996,000 100,019,000                                                                                   
  accounts payable and accrued expenses166,000 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 liabilities51,162,000 114,769,000 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 shareholders176,408,000 178,605,000                                                                                   
  net assets in liquidation attributable to noncontrolling interest87,000 250,000                                                                                   
  net assets in liquidation176,495,000 178,855,000                                                                                   
  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                                                                                    

We provide you with 20 years of balance sheets for Equity Commonwealth stock, allowing you to gain comprehensive visibility into the fundamentals of the company. Our detailed breakdowns include key financial metrics such as asset and liabilities, payables and receivables, long debts and short debts, cash and inventories, expenses and profits. This in-depth information is essential for making informed investment decisions and understanding the financial health and performance of Equity Commonwealth. Explore the full financial landscape of Equity Commonwealth stock with our expertly curated balance sheets.

The information provided in this report about Equity Commonwealth stock 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.